The structural characteristics of submersible sewage pump

Many people will ask the submersible sewage pump is what? Professionals tell you that the submersible sewage pump is a suitable for a variety of harsh environments of sewage or sludge pumping and sedimentation machines. So, what are the structural characteristics of the submersible sewage pump?

    First of all, the submersible sewage pump motor and its lower part of the pump body is connected together, the middle of the intersection in the design of a very reliable mechanical device used to seal, sealing effect is very good, it can be very effective to prevent The exchange between the coolant inside the motor and the sewage or sludge pumped, under this design, greatly increased the service life of the submersible sewage pump, to ensure long-term safe and reliable operation of the pump.

    Submersible sewage pump in the design of the time, mainly divided into two kinds. The first is a small flow pump for the centrifugal or swirl structure, its function is used to draw ordinary sewage or sludge and engineering high-lift water and so on. The second is the large flow pump mixed-flow structure, its main function for the coal washing plant sewage or coal smelting, and can also be used for agricultural farmland watering and so on.

    In addition to the above two points, the submersible sewage pump also has an important structural features, that is, the motor housing is equipped with a cooling hood, in this design allows the motor can be exposed to a certain period of time to work, the motor part Can be exposed for a long time to work, greatly enhanced the use of security.
China professional submersible pump manufacturer - Shanghai Weihu pump,Good quality submersible sewage pumps for sale, welcome to wholesale submersible sewage pump; we will provide you the best service.Email:fay@welpump.com Website:http://www.shwhpump.com

Use of stainless steel deep well pump should pay attention to the problem

In this market demand, the emergence of stainless steel borehole pump blowing a boom. Its role is also well known, such as advanced durability, low noise, etc., to solve the traditional submersible pump left the problem. But even no matter how good the product but we need to protect, then here and share with you in the use of stainless steel deep well pump should pay attention to the various issues, so that its life longer.

    First, in the submersible motor to fill the clean water, and then operate. Especially in the winter, at that time is basically to disable the submersible pump, and then in the storage time to remember the machine filled with water row clean, to avoid the machine frost damage, resulting in loss!

    Second, pay attention to check the unit insulation resistance, it is best to check regularly, the resistance must not be less than 0.5 MΩ. Below this resistance, be sure to make timely adjustments!

    Third, the temperature of the delivery medium should be appropriate, preferably between 40-120 degrees. So as to avoid unnecessary damage caused by high temperature!

    Fourth, the pH of the substance to be transported should be kept within a range, preferably 1-44.

    Fifth, if it is used for digging wells, then the well is the best straight, well pipe should not be staggered, if used in the pool, you should add a radiator.
If you are interested in our products, consult the submersible pump price list, please contact us.Email:fay@welpump.com Website:http://www.shwhpump.com 

How to adjust the performance of vertical axial flow pump

.Vertical axial flow pump performance adjustment, usually what method? Here to understand the next together.
1, variable speed adjustment:vertical axial flow pump is working at a certain speed, and at a certain speed to get the corresponding flow, head, power and efficiency. When the speed changes, its performance parameters are also corresponding changes, so as to achieve the purpose of regulation. If the axial flow pump is powered by a diesel engine or a gasoline engine, it can change the size of the accelerator to change the speed. If the axial flow pump is connected with the power machine is a delta belt or flat belt indirect transmission device, you can change the transmission pulley diameter to change, Wheel or driven wheel can be, the purpose of foot to change the transmission ratio. Variable speed pump performance is more economical, wide range of applications, all agricultural submersible pumps can be used.
2, variable angle adjustment: from the structure point of view, axial pump impeller has a huge hub, easy to install adjustable angle of the blade. When the blade installation angle changes, the blade of the water lift also changed, thus changing the performance of the pump, which is the axial flow pump variable angle adjustment. As the blade mounting angle increases or becomes smaller, the flow rate of the axial flow pump, the head, the power changes, but the highest point of efficiency does not change, it is very advantageous to the axial pump performance adjustment.

The use and characteristics of deep well pump

The use and characteristics of deep well water pumps
QJ-type submersible well pump is based on national standards designed energy-saving products, widely used in farmland irrigation, industrial and mining enterprises for water supply and drainage, plateau, mountain people, livestock water.
The pump consists of QJ submersible pump and YQS submersible motor into one underwater to work underwater. With a simple structure, small size, light weight, installation, easy maintenance, safe operation, reliable, energy efficient and so on.
QJR series of wells with heat-resistant submersible pump is well with the heat-resistant diving three-phase asynchronous motor directly into one, assembled into a heat-resistant submersible pump, hot water temperature up to 100 ° C, is submerged into the well, Water is an effective tool; geothermal is one of the cheapest, clean, inexhaustible latest energy, now widely used in heating, medical, bathing, breeding, planting, industry and agriculture, factories and mines, entertainment services, health facilities, aspect. It has the advantages of simple operation, reliable operation, no noise, excellent performance, high efficiency of unit, easy installation and maintenance. It has many advantages such as heat resistance, corrosion resistance and anti-aging. It is the latest product of embankment hot water.
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Deep well pump operation, repair and storage

Deep well pump operation, repair and storage

1. Submersible well pump operation should always observe the current, voltmeter and water flow, and strive to run the pump under rated conditions.
2. Application of the valve to adjust the flow, head, not overload operation. One of the following should be stopped immediately:
(1) rated current when the current exceeds the rated current of 20%;
(2) When the supply voltage is too high or too low (higher than 400V or below 360V);
(3) rated head, the flow rate is lower than normal;
(4) Insulation resistance less than 0.5 megohms;
(5) when the moving water level drops to the pump inlet;
(6) electrical equipment and circuits are not required;
(7) the pump has a sudden sound or a large vibration;
(8) When the protection switch is frequently tripped.
3. To constantly observe the instrument, check the electrical equipment every half a month to measure the motor insulation resistance, the resistance value of not less than 0.5 megohms.
4. Each row of irrigation (2500 hours) for a maintenance protection, replacement of damaged parts.
5. Lifting and handling of electric pump:
(1) disconnect the power, remove the cable wiring;
(2) With the installation tool to gradually remove the water pipes, gate valves, elbow, and with the splint to lift the pump out of the manhole cover, and another clamp to clamp the next section of the water pipe, so in turn, block off until the pump out of the well The (In the process of hanging and found that there can not be forced to lift the card, should be up and down activities to overcome the card point of safe lifting);
(3) Remove the gusset plate and filter the net and cut the cable from the lead and the three-core cable or the flat cable connector;
(4) Remove the coupling lock ring, remove the fixing screw, remove the connecting bolts, make the motor, water pump separation;
(5) release the motor filled with water;
(6) the demolition of the pump:
Remove the impeller, tapered sleeve, remove the guide shell, so that the unloading of the impeller, deflector, and so on, Upper guide shell, check valve and so on.
(7) Motor removal:
Remove the base, thrust bearing, thrust plate, lower guide bearing, connecting seat, throwing sand, remove the rotor, remove the upper bearing seat, stator and so on.
6. Assembly of the pump:
Before assembly check the cleaning of the parts of the rust, sludge, with the surface to be coated with butter rust, water pump large thread joints to apply lead oil.
(1) Assembly order of motor:
Stator assembly → lower bearing assembly → rotor assembly → thrust plate → shaft nut → thrust bearing assembly → base assembly → upper bearing bearing assembly → skeleton oil seal → connecting seat. Adjust the studs so that the motor shafts meet the specified requirements. And then on a good pressure regulating film, pressure spring and cover.
(2) Water pump assembly:
The shaft and the water section fixed in the mounting seat, with the cartridge will be impeller, conical sleeve fixed on the shaft, and then install the guide shell, the impeller ... ... in this way Bahrain up the shell, check valves and so on.
Class 8 below the motor pump part of the assembly, the first in the water and the upper bearing bearing contact plane evenly distributed, add the same 3 ~ 3.5 mm gasket 3 to 4, and then even on the good pull nut, Shaft, the pump shaft, the upper fixed bolts and the lock ring, with the cartridge to the impeller, cone sleeve fixed on the pump shaft, and then installed on the guide shell, the impeller ... ... in this way, After the pump is installed, release the ribs, remove the gasket, and then tighten the ribs, and then turn the pump from the coupling, the rotation must be uniform.
7. Save the deep well water pump
When the pump is not used for a long time, it should promptly release the water inside the motor, wipe the surface clean, coated with anti-rust oil, on the relatively clean, dry, no chemical corrosion place. After the motor cavity is filled with water, it is strictly prohibited to put the temperature in the environment of 0 ℃ and below, otherwise it must be put in the cavity clean water to prevent cracking motor. Deep well submersible pumps

Detailed instructions for the operation of deep well pumps

Detailed operation of deep well pump start running procedures, a total of 7 points, as follows:
1, the depth of the shaft pump part of the axial adjustment of the amount of axial: deep well pump work, due to the role of axial thrust thrust shaft rotation, adjust the axial volume of the purpose is to eliminate this effect to ensure that the pump work The
2, pre-run: in the deep well pump before the start, must be from the pump seat on the injection hole into the water pipe into the clean lubricating oil lubricated rubber bearings. When the pump is equipped with a bottom valve, the water pipe must be filled, the bottomless valve, the infusion of water shall not be less than 0.2mm, conditional, should be connected to tap water or pre-run tank, from the car before 5 minutes to Run, to start the pump after the water to stop the water.
3, check the transmission and anti-reverse device is valid; check whether the steering to meet the requirements. The correct turn is: from the drive down to see, should be anti-clockwise rotation; its direction should be consistent with the nameplate arrow direction.
4, the transmission device in the lubricating oil or grease is completed according to the provisions of perfusion.
5, in the above preparatory work is completed, the export gate valve a little smaller, you can start the deep well water pump.
6, operation: the newly installed deep well pump began to move, there should be no less than the hour of the trial run phase. In this period of time to strengthen the maintenance, pay attention to observation, any of the following phenomena should be shut down when the inspection.
(1) when the ammeter fluctuates or the current exceeds the rated value;
(2) deep well pump has obvious vibration;
(3) when the temperature of the bearing parts on the motor or other transmission exceeds 75 ℃;
(4) When a deep well pump, motor or other transmission is abnormal.
7, after the trial run, should stop checking, if no abnormal phenomenon, you can put into normal use.

Deep well water pump detection content

Deep well water pump detection content contains those points
    Deep well water pump is characterized by the outer cylinder and bushing in the ground assembled and connected to the bottom of the tubing first into the well, and then put the fixed valve, and finally the plunger connected to the lower end of the sucker rod into the pump.
    1. Observation tube pump, tube pump structure can be divided into a combination of pumping pump and the whole pump. Combination pump: from the external work tube and set in the outer cylinder in the cylinder, plunger (plunger inside and downstream moving magic) and fixed Vale composition. Whole cylinder pumping pump: by the pump, plunger (plunger inside and downstream moving magic) and fixed Vale composition. It has the following advantages in combination with the combined pumping pump: the structure is simple, light weight, no bushing, no bushing misalignment occurs during transport and downhole operation, the length of the pump can be made longer and can be made to adapt to long stroke pump
    2. Observation rod pump, rod pump is the whole pump is assembled on the ground and then connected to the bottom of the sucker rod, the whole through the tubing into the pre-installed in the tubing on the pre-set position with a reed cylinder. It is characterized by the fact that the pump does not need to start the tubing and the pump is convenient. The structure is complicated and the manufacturing cost is high. The pump diameter under the same tubing diameter is smaller than that of the tube pump. Therefore, the rod pump for the pump under the depth of the larger, but the lower yield of the well.
    3. Observation of submersible well pump downhole unit, including submersible motor, protector, separator and multi-stage centrifugal pump. One submersible motor is a two-pole, three-phase squirrel cage asynchronous induction motor. Protector is the use of well fluid and motor oil density difference, to prevent the shaft into the motor caused by a short circuit and burn the motor device. The oil and gas separator separates the free gas to prevent and reduce the gas into the pump, so that the multi-stage centrifugal pump can work properly. Multistage centrifugal pumps gradually increase the pressure and velocity of the well fluid to obtain a certain lift and lift it to the ground.

What plant drainage mixed flow pump is better

Mixed flow pump, is a kind of water pump. According to the different forms, mixed flow pump with vertical mixed flow pump and horizontal mixed flow pump two. Widely used in irrigation and drainage facilities, industrial water supply and drainage and other occasions. So, like the power plant drainage, working conditions dock, mariculture This change in water level is relatively large, head requirements are relatively high occasions, what kind of mixed flow pump should be used?
    Buy water pump, choose Weihu pump! The industry knows that Shanghai Weihu  Pump Co., Ltd. is a focus on the pump manufacturing 39 years of brand manufacturers, 92 major product lines, 4986 kinds of pump models, pump types, model specifications, can be a great range to meet the enterprises Units for the procurement of various types of pumps demand.
    Such as power plant drainage and other water level changes are relatively large, relatively high requirements of the occasion, our company Shanghai Weihu Pump Co., Ltd. production of HD (S) series guide vane mixed flow pump can meet the requirements. Xiang pump HD (S) guide vane mixed flow pump is a single-stage single-suction vertical mixed-flow pump. Especially for large and medium-sized irrigation and water conservancy facilities irrigation and drainage, mining dock, mariculture, urban construction, power plant drainage, power plant water supply and drainage and power plant transportation and other occasions.
    If you have a large diameter mixed flow pump or other conventional mixed flow pump procurement needs, you can contact the mixed flow pump manufacturers http://www.shwhpump.com .email: fay@welpump.com Wei Shanghai pump online customer service, they will for you Provide accurate pump selection and offer service Oh!

Use of submersible sewage pump

Submersible pump use, sewage pump use, submersible sewage pump use

    Before using the operation of submersible sewage pump, should be submersible sewage pump, cable and control cabinet switches and other related equipment to conduct a comprehensive and careful inspection.

Specific submersible pumps are used as follows:

    1, the use of submersible sewage pump, you should carefully check the submersible sewage pump chassis in the transport process whether to break into the water after the water into the water, the cable without damage caused by leakage accident, confirm the application of resistance meter check submersible pump The insulation resistance of the motor to ground is generally above 50 ~ lOOMΩ. When the measured cold insulation resistance value is less than 1MΩ, should check the stator winding insulation resistance reduction reasons, troubleshooting, so that the insulation resistance can be used to return to normal, otherwise it may cause diving motor stator winding damage.

  2, the use of submersible sewage pump should be installed before the special leakage leakage protection switch or specifications match the overload protection switch to make the submersible sewage pump in the event of failure, can be reliable and effective protection without damage to the diving motor Stator windings, and even the entire motor.

   3, the use of submersible sewage pump before the shell should be reliable grounding, submersible sewage pump leads to the cable core with a ground mark of the yellow-green two-color ground wire should be reliable grounding. If the conditions are limited, there is no fixed ground, you can near the power supply or submersible pump near the location of the wet land buried in the deep 2m metal rod as a ground.

    ④ Before using the submersible sewage pump, check whether the inside of the motor or the sealed oil chamber is filled with oil. If it is not filled in accordance with the regulations, it shall be filled with the specified oil level.

    ⑤ submersible sewage pump should be vertical hoisting, do not use the horizontal (except horizontal submersible sewage pump), should not fall into the mud, to prevent damage caused by poor motor cooling.

⑥ submersible sewage pump should generally not dehydration operation, if the test run on the ground, the dehydration operation time should generally not exceed 2min.

380V submersible sewage pump before use, should check the direction of rotation is correct, such as submersible sewage pump after the start of a small amount of water, indicating that the reverse, should immediately stop, for submersible sewage pump leads to any two lines of cable or line wiring position.

QJ stainless steel water pump use conditions

QJ stainless steel water pump, pump is directly connected with the wells with submersible pumps, direct submerged into the water to run. Structure slender. Single stage or multi-stage pump-type water-filled three-phase asynchronous motor submersible pump. It is specially developed for the drainage system of agricultural irrigation and drainage, sprinkler irrigation, industrial and civil construction. It is suitable for ponds, fish ponds, water towers, deep wells and high water and fountains.
QJ stainless steel water pump use conditions:
Rated frequency 50HZ, rated voltage 380V or 660V three-phase AC power supply. The pump should be immersed in the water to run, diving depth requirements should be in the moving water level below one meter. Working medium should be non-corrosive water, PH value in the 6.5 - 8.5 range, the sediment content of not more than 0.01% (mass ratio). Water temperature does not exceed 20 ℃. Vertical installation, wellbore integrity, well pipe without dislocation.

how to choose submersible water well pump？

Submersible water well pump how to choose and precautions are as follows:
      1, according to the well of the water, select the flow of the submersible water well pump.
      2, well water sediment more than one ten thousandth of the well, should not be installed using deep well pump. Well water sediment concentration is too large, if more than 0.1%, will accelerate the wear of rubber bearings, causing the pump vibration, shorten the pump life.
      3, according to the well diameter, water quality initial pump type. Different types of pumps on the size of the wellbore diameter have certain requirements, the maximum size of the pump to be smaller than the diameter of 25 ~ 50mm. The pump part can not close the well wall to prevent the pump vibration will damage the well.
      4, according to the depth of the well water level and water pipe head loss, to determine the actual needs of the well pump head, that is, the pump head. Loss of the head is usually a net head of 6 to 9%, usually 1 ~ 2m. Water pump the bottom of a impeller into the water depth to 1 ~ 1.5m is appropriate.

installation of submersible water well pump unit

Installation of submersible water well pump unit:
1. submersible water well pump installation instructions
(1) water pump inlet must be in the moving water level 1 meter, but the depth of diving should not exceed the water level about 70 meters, the motor from the bottom of the bottom of the least 1 meters. (2) rated power is small or equal to 15kw (power supply allows 25kw) motor with full pressure start.
(3) rated power greater than 15kw, the motor uses a buck to start.
(4) the use of the environment must meet the required conditions.
2. Preparation of submersible water well pump before installation
(1) first check the diameter of the wells, the depth of the water and the power supply system is in line with the conditions of use.
(2) check the pump is flexible, should be no stuck, sub-installed motor and pump coupling coupling, pay attention to tighten the top wire.
(3) open the exhaust and water plug, to the motor cavity filled with water, pay attention to prevent the full, good on the plug. There should be no leakage.
(4) measuring the motor insulation with a 500 volt megger, shall not be less than 150 ohms.
(5) should be equipped with the corresponding lifting tools, such as tripod, hanging chain and so on.
(6) Install the protective switch and start the device, instantly start the motor (no more than 1 second), see whether the steering of the motor and turn the same sign, if the contrary, the exchange of power can be any two joints, Water net, ready to go down. When the motor is connected to the pump, it is necessary to pour water from the pump outlet to start before the water flows out of the water.
3. submersible water well pump installation
(1) first in the pump outlet to install a pump tube section, and clamped with a splint, hanging into the well, so that the splint is located on the well platform.
(2) and then a pair of splint clamping the other section of the water pipe. And then lift, down and then connected with the water pipe flange pads, screwing the screw must be diagonal at the same time. Lift the chain to remove the first plywood, so that the pump down the splint and fall on the well. Followed by repeated installation, down, until all the equipment, put the covers, the last one does not disassemble the splint on the cover.
(3) installation of elbow, gate valve, outlet, etc., and add the appropriate rubber seal.
(4) cable to be fixed in the groove on the water pipe flange, no section with a rope fixed, go down the process to be careful not to bump the cable.
(5) under the pump if the phenomenon of stuck, to think of customer service card points, can not force the next pump, so as not to stuck.
(6) installation is strictly prohibited personnel down the work.
(7) protection switch and start-up equipment should be installed in the user's power supply board, the switchboard with a voltmeter, ammeter, light, and placed in the appropriate position in the well.
(8) the use of "wire from the motor base to the pump tube tied" forcibly protective measures to prevent accidents other than.

How to protect the agricultural submersible pump?

Slack season, should be necessary for agricultural submersible pump to maintain the necessary maintenance to extend its service life and ensure busy when the normal use:
1, check the wearing parts: submersible pump impeller, guide vane, machine seals, bearings, etc. are wearing parts.
2, the replacement of lubricants: open the sealed chamber and the motor inside the oil hole screws, the sealed indoor and motor internal lubricants all release, replace the new oil to ensure that the lubrication system to work properly.
3, the demolition of the pump shell rust: spring before use, should be opened the last level of the pump shell, turn the wheel after the closing start to prevent the parts rust can not start normal and burn the motor. This maintenance is particularly important for water-filled motors.
4, to ensure that bearing lubrication: water-filled submersible pump should be checked to replace the upper and lower end of the bearing chamber skeleton oil seal and lithium grease. To ensure that the bearing long-term work in a good state of lubrication.
5, check the bearing: check the motor part of the upper and lower bearings, if found to wear or clearance is too large, to be timely replacement of new bearings, is strictly prohibited "sick" improvise.
Check the method is as follows: If the motor is running, resulting in "carbazole" sound, and the cycle is proportional to the speed, and hand when the rotor is laborious, bearing raceway is a bit astringent or avulsion phenomenon; if the bearing intermittent Of the "choking choked" sound, hand rotation of the rotor when there is uncertainty of the dead point, the ball is generally damaged, broken inner ring or broken ball. Encountered the above situation, you must replace the bearings, so as to avoid greater damage. our website:www.shwhpump.com,email:fay@welpump.com

Connection method of deep well pump

Connection method of deep well pump
1, stripped deep well pump cable outer jacket and the main insulation layer, exposing the copper wire 35-40mm, will be close to the core part of the rubber repair taper, the core layer of the oxide layer polished clean and wipe with alcohol The core and the insulation to be wrapped, the jacket layer and make it naturally dry.
2, connector
1) cable 2) PVC adhesive tape 3) self-adhesive butyl rubber tape 4) φ1mm copper wire 5) solder 6) lead cable
3, ready to 500W soldering iron, rosin, solder, lmm bare copper and insulation tape.
4, with bare copper wire evenly tied cable core, electric iron heating, infiltration tin, requiring penetration, infiltration uniform. Repair the flattened parts with a rasp (do not allow burrs and taps), and wipe the parts again with alcohol and dry them.
5, first with self-adhesive butyl tape semi-laminated three layers, and gradually extended to the outside of the core. Bandage must be stretched when the tape 200%, the outer layer of polyvinyl chloride adhesive tape with three layers, but also gradually extended to ensure that the dressing part of not less than 200mm.
6, three-core cable connector should be three joints in order to stagger a certain distance to prevent short circuit. our website:www.shwhpump.com,email:fay@welpump.com

How to extend the service life of sewage submersible pumps

How to extend the service life of sewage submersible pump, weihu pump after-sales department most have the right to speak, the following is the Weihu sewage submersible Pumps wholesale manufacturers after-sales department given the relevant views.
1, to determine the correct direction of rotation of the motor
   Should find out the direction of rotation of the motor, there are many types of sewage submersible pump forward and turn when the water can be, but the rotation of the water is small, the current is large, the rotation time will damage the motor winding.
2, to prevent the power supply voltage abnormal boot
3, the cable device and diving sewage pump insulation resistance requirements
   Device sewage submersible pump, the cable to overhead, the power cord should not be too long. Sewage Submersible Pumps Do not force cables when they come into the water or prevent them from cracking. Submersible pump operation do not sink into the mud, otherwise it will cause the motor heat dissipation and burn the motor winding.
4, to prevent frequent switching
   Do not frequently switch the submersible pump, this is because the pump will stop when the return, if the boot immediately, will make the motor load, resulting in the current is too large and burn the winding. Because the start when the current is very large, often launched will burn the diving sewage pump motor windings.
5, Mo to sewage submersible pump for a long time overload operation
   To prevent the sewage submersible pump for a long time overload operation, do not smoke a large amount of water and at any time to investigate the current value is not on the nameplate on the regular value, if found that the current is too large, should stop to view. Pump dehydration operation should not be too long to prevent the motor overheating and burned.
6, pay attention to normal maintenance
    Usually often see the motor, such as found under the cover with cracks, rubber seal ring damage or failure, etc., should be replaced or amended to prevent water into the submersible pump. our website:www.shwhpump.com,email:fay@welpump.com

Mud pump and sewage pump difference

Mud pump and sewage pump difference
Mud pumps and sewage pumps are tools that use strong pressure to achieve mud or sewerage, are indispensable equipment for engineering and environmental sectors, but they also have a number of different places, as follows:

Mud pump without cutting impeller, mainly used to pump mud. The two main performance parameters of the mud pump are displacement and pressure, and the displacement is calculated at several liters per minute. It is related to the diameter of the borehole and the required flushing fluid from the bottom of the hole. The larger the displacement, the rinsing speed required to cut the drill bit down the cuttings, rock powder washed away from the bottom of the hole, and reliably carried to the surface. Through the drilling and extraction, you can get the bottom of the mud.

Sewage pump is mainly used for industrial wastewater treatment, sewage treatment, in the urban environment and water recycling has played a significant role, and there is a sewage pump with a cutting wheel of the sewage pump, so that Sewage pump can be chopped dirt, and then take the sewage clean.

China professional sewage pump manufacturers - Shanghai Weihu pump,We provide cheap high-quality sewage pump and submersible pumps, welcome to wholesale sewage pump; we will provide you the best service

 our website:www.shwhpump.com,email:fay@welpump.com

Mud pump classification

Mud pump single role and double acting two types, single acting mud pump in the piston reciprocating movement of a cycle only to complete a suction and drainage action. While the double acting mud pump reciprocates twice to complete the suction and drainage action. According to the number of mud pump cylinder classification, a single cylinder, double cylinder and three cylinder three types.
    Sewage slurry pump is a single-stage single-suction vertical centrifugal pump, the main components are volute, impeller, pump seat, pump shell, support tube, motor seat, motor and other components. Volute, pump seat, motor seat, impeller nut is pig iron casting, corrosion resistance is better, easy processing technology. Impeller for the three single-stringed curved leaves, the use of semi-closed impeller, and the use of malleable cast iron, so high strength, corrosion resistance; processing convenience, through the good, high efficiency. In order to reduce the weight and reduce the amount of turning, the pump shaft is made of high quality carbon steel cold drawn garden steel. The mud pump seat is equipped with four skeletal oil seals and bushings to prevent shaft wear and prolong the service life of the shaft. The mud pump can be vertical or inclined to use, covers an area of ​​small, volute to be buried in the working medium work, easy to start, no water, the direction of rotation should be clockwise from the motor to see the clockwise direction. The length of the switchboard is available in various sizes so that the unit can be selected according to the use according to the local conditions.

China professional submersible pump manufacturer - Shanghai Weihu pump,We provide cheap high-quality sewage pump and submersible pumps, welcome to wholesale sewage pump; we will provide you the best service

Rules for the operation of mud pumps

Mud pump, refers to the drilling process to the drilling of mud or water and other washing fluid delivery machinery. Mud pumps are an important part of drilling equipment.
1, before the start of inspection: the connection parts to be fastened; electric rotation direction should be correct; clutch flexible and reliable; pipe connection is firm, reliable sealing, flexible and effective bottom valve.
2, liquid mud pump before starting, suction pipe, bottom valve, the pump body must be filled with water, pressure gauge top of the buffer filled with oil.
3, hand rotation, so that the piston reciprocating twice, no obstruction and the line insulation is good when no load start, after starting, to be normal operation and then gradually increase the load.
4, the operation should pay attention to the sealing device sealing situation, if necessary, to be adjusted. The rod and the auxiliary rod should always be lubricated with oil.
5, the operation often test mud sediment content shall not exceed 10%.
6, there are several speed of the mud pump to make the splash lubrication and reliable, should be in the operation of each class will be a few files speed were running, the time is not less than 30 seconds.
7, is strictly prohibited in the operation of the speed, the need to shift the pump should shift

China professional sewage pump manufacturer - Shanghai Weihu pump,We provide cheap high-quality sewage pump and submersible pumps, welcome to wholesale sewage pump; we will provide you the best service

The working principle of the mud pump

Working principle of mud pump
    Mud pump is in the drilling process, to the drilling of mud or water and other washing fluid machinery. Mud pumps are an important part of drilling machinery and equipment. Its main role is to drill in the process of drilling with the drill bit into the downhole, play a cooling bit, cleaning the drilling tool, fixed wall, driven drilling, and drilling back to the ground after the role of cuttings. In the commonly used circular drilling, the mud pump is the surface of the rinse medium - water, mud or polymer rinse liquid under a certain pressure, through the high pressure hose, faucet and drill rod center hole directly to the bottom of the drill to achieve Cooling the drill bit, the cutting down the cuttings and transport to the surface of the purpose. Commonly used mud pump is piston or plunger type, driven by the power machine crankshaft crankshaft crankshaft through the cross head and then drive the piston or plunger in the pump cylinder to do reciprocating motion. In the inhalation and discharge valve under the alternating effect, to achieve the purpose of pressure and circulation rinse solution.
  The two main parameters of mud pump performance are displacement and pressure. The displacement is calculated at several liters per minute, which is related to the diameter of the borehole and the required flushing fluid from the bottom of the hole, ie, the larger the pore size is, the greater the required displacement. Requires the return of the rinse liquid to cut the drill bit down the cuttings, rock powder and timely washed away from the bottom of the hole, and reliably carried to the surface. Geological core drilling, the general return speed of 0.4 to 1 m / min or so. The pressure of the pump depends on the depth of the borehole, the resistance of the passage through which the rinsing solution passes, and the nature of the flushing fluid being conveyed. The deeper the drilling, the greater the resistance of the pipeline, the higher the pressure required. With the drilling diameter, depth changes, the requirements of the pump displacement can be adjusted at any time. In the pump mechanism is equipped with gearbox or hydraulic motor to adjust its speed, in order to achieve the purpose of changing the displacement. In order to accurately grasp the pump pressure and displacement changes, the mud pump to install the flow meter and pressure gauge, at any time so that the drilling staff to understand the operation of the pump, while the pressure changes through the hole to determine whether the normal condition to prevent the occurrence of hole accident

Shanghai Weihu Pump is a modern enterprise with joint-stock system as product, scientific research, development, design, production and sales. As a professional submersible pump manufacturers , wholesale sewage pump,  choose Weihu Pump, we are committed to you Procurement to provide professional consultancy services to ensure that you buy the right model, the right material, cost-effective pump products, if you have other aspects of the problem, you can call our technical experts, experts will give a professional answer.

Reasons and Solutions of Dirty Sewage Pump Blockage

 It can tear and cut long fiber, bag, belt, grass, cloth and other materials in sewage, and then discharge smoothly. It is especially suitable for conveying liquids containing hard solid and fiber and especially dirty, sticky and slippery liquid. AS, AV submersible sewage pump.

Submersible sewage pump anti-clogging performance Why is more and more value? This is mainly due to two reasons: First, the increase in sewage disposal costs. Industrial enterprises are working to reduce the water consumption per unit of product, which makes the sewage solids and fiber content is getting higher and higher. Second, more and more use of sewage pump energy-saving means, is the speed adjustment of the drive, and speed regulation can not guarantee that the sewage pump will not plug.

 

Impurities for the frequent impaction pump impeller problems, the initial operation of each device will be used to clear, clear overnight blocking method. Although this avoids downtime, but often disassemble the pump, resulting in parts and other parts of the pump pump ring increased wear and tear at the same time each time a lot of manpower. To change this situation, in the pump inlet pipe installed at the carbon steel anti-fouling box, and was 45. Inclination. Use a filter inside the box to filter out impurities again to avoid clogging. Team to conduct a monthly anti-pollution 1 to 3 times the clean-up. After the implementation of this program received a certain effect, human consumption is eased. Anti-fouling the bottom of a vent valve, but there are still dead ends. Part of the sewage and impurities in the corner after the accumulation, in the clean-up easily lead to minor gas poisoning injuries, is not conducive to safe operation.

Diving with sewage pump rotor blade morphology is divided into two kinds, respectively, vortex-type leaves and cutting blades, leaves of these two forms of the most widely used. The swirling impeller does not move in the medium to be conveyed. The medium to be pumped is guided to the pump chamber according to the hydrodynamic principle, and the pumped medium flows from the impeller. Thus, long fibers or solid matter in the pumped liquid medium are also pumped together. The cutting blades, can be a large block of solid material chopped, so no longer plug.

China professional sewage pump manufacturer - Shanghai Weihu pump,We provide cheap high-quality sewage pump and submersible pumps, welcome to wholesale sewage pump; we will provide you the best service

Performance and Advantages of QW Mobile Submersible Pump

Performance and Advantages of QW Mobile Submersible Pump
  Mobile submersible pump | QW submersible sewage pump | large channel anti-blocking hydraulic components design, set the oil chamber sealing monitoring system, automatic safety control cabinet, the pump operation to monitor. QW (WQ) type non-clogging submersible sewage pump is the introduction of foreign advanced technology on the basis of the combination of the characteristics of the domestic pump and the successful development of a new generation of pump products, with significant energy saving, anti-winding, no clogging, automatic Installation and automatic control and other characteristics, in the discharge of solid particles and long fiber garbage, has a unique effect. The series of sewage pump hydraulic performance of advanced, mature, product performance testing, the indicators are in line with the relevant design requirements.
  1, QW mobile use of a unique single or double impeller structure, greatly improving the dirt through the ability to effectively pass the pump diameter 5 times the fiber material and diameter of about 50% of the diameter of the solid particles.
2, the mechanical seal with a new hard corrosion-resistant tungsten tungsten material, the pump can run continuously for more than 8000 hours.
3, the overall structure of compact, small size, low noise, energy saving effect is remarkable, easy maintenance, no need to build pump room, dive into the water to work, greatly reducing the cost of the project.
4, the pump sealed oil room is equipped with high precision anti-jamming leak detection sensor, the stator winding embedded in the thermal element, the pump motor automatic protection.
5, according to the user needs with automatic control cabinet, the pump leakage, leakage, overload and over-temperature, such as automatic protection, improve product safety and reliability.
6, float switch can be based on the required level changes, automatic control of the pump start and stop, without special care, the use of extremely convenient.
7, QW diving series can be equipped with dual-rail automatic coupling system according to user needs, it is to install, repair more convenient, people do not have to enter the sewage pits for this.
8, can be used in the whole head, and to ensure that the motor will not be overloaded.
9, there are two different installation methods, fixed automatic coupling installation system, mobile free installation.
QW mobile submersible pump application range
 Applicable to chemical, oil, pharmaceutical, mining, paper, power plants and urban sewage treatment, municipal works, public facilities, such as sewage particles of sewage sewage. Model Name Meaning: 100QW (WQ) 100-15-7.5 100 - Pump Outlet Nominal Diameter (mm) WQ (QW) - Submersible Pump 100 - Rated Flow (m3 / h) 15 - Rated Head (m) 7.5 - Motor rated power (Kw)
Technical parameters of QW mobile submersible pump
  Flow: 5-2000m3 / h Head: 5-50m Speed: 580-2900r / min Caliber: φ25-φ400
  Temperature range: -15 ~ +60 ℃
  Working pressure: ≤1.0Mpa
Shanghai Weihu Pump is a modern enterprise with joint-stock system as product, scientific research, development, design, production and sales. As a professional water pump manufacturer, wholesale submersible pump, choose Weihu Pump, we are committed to you Procurement to provide professional Consult your services to ensure that you buy the right model, the right material, cost-effective pump products, if you have other aspects of the problem, you can call our technical experts, experts will give a professional answer.

Instructions for use of oil - immersed submersible pumps

Oil-immersed submersible pump is a water pump and three-phase asynchronous motor integrated power drainage equipment. With a reliable waterproof sealing performance, small size, light weight, no pump room, no irrigation water, the use of maintenance and management are convenient.

Oil filled submersible pump working conditions

· Submersible pump submerged depth of not more than 5m:

· Water temperature does not exceed 40 ℃:

The volume ratio of the sand in the water or the solid particles containing water does not exceed 0.1% and the particle size is not more than 0.2mm:

No corrosion, water ph value of 6.5-8;

Such as the general room temperature water: well water, river, lake.

Instructions for use of oil - immersed submersible pumps

1, submersible pump specifications should be consistent with the actual performance of the use, should be carefully checked before use.

2, submersible pump with the outlet diameter should be matched with the pump diameter.

3, the power capacity should be above 5.5 kVA, three-phase, 380 volts, AC 50 Hz.

4, the pump should be equipped with motor protection switch (factory has a "protection switch action current has been set up, the user may not change their own.

5, at any time are not allowed to pull the power pump cable. When using the full inspection of the cable, found damaged immediately replaced before use.

6, the voltage fluctuation is allowed between 342 and 418 volts. Such as the use of electric distance from the power pump should be appropriate to increase the cross-sectional area of ​​the wire.

7, leads to a cable with a ground mark of the yellow-green two-color core wire must be ground, if no fixed ground, available 2 m metal rod buried in the river, lake shore, ditch or wet soil line.

8, before use should check the upper and lower cover oil hole screws are loose oil leakage phenomenon. Outlet box on the middle of the m8 screw test for the factory dedicated to prohibit users to loose their own.

9, before running with 500v megger measuring cold motor stator winding on the ground insulation resistance, the minimum shall not be less than 5mω, or can not be used, should be removed before the use of moisture.

10, before use should be idle on the land 1min0, check the pump running is normal, steering is correct.

11, the pump may not be dehydrated. In the pump work should pay attention to check the water level down, not allowed to show the pump running on the water. The diving depth of the pump ranges from 0.5 to 3 meters.

12, the pump should not fall into the mud, shall not be horizontal, it is recommended to pump external basket or wire basket to prevent water miscellaneous debris pump impeller.

13, after the pump starts, such as the discovery of a small amount of water or no water, indicating that the direction of rotation of the pump should be cut off the power, the three-phase core in any two-phase exchange and then drive.

14, submersible pump live or pumping work, do not wash things nearby, swimming or work, do not let the animals in the vicinity of the water, to prevent the electrical pump in case of leakage, electric shock casualties occurred.

15, submersible pump can not smoke a larger amount of water or mud water.

16, submersible pump suddenly does not turn, or a sudden reduction in water and other abnormal phenomena, to be shut down to check, be sure to cut off the power, and then removable

our website:www.shwhpump.com,Email:fay@welpump.com

Oil immersed submersible pump qy10-110 / 4-7.5kw

Qy oil-immersed submersible pump Product Overview:
Qy oil-immersed submersible pump consists of electric water pump, seal, motor three parts. The pump is located in the upper part of the pump, centrifugal or axial flow structure, the motor is located in the lower part of the pump, oil-filled three-phase asynchronous motor. Between the pump and the motor with a built-in mechanical seal box or double-ended mechanical seal to seal, each fixed seal at the use of "0" -shaped oil-resistant rubber seal for static seal, the shaft by hard chrome plating, More reliable mechanical strength, and effectively improve the wear resistance and corrosion resistance of the shaft, but also easy to remove the pump.
The series of pumps due to the flow and the scope of a wide range of applications, is the vast rural areas, industrial and mining enterprises power irrigation and drainage equipment for irrigation and drainage fields, irrigation and drainage irrigation, underground water, water towers, urban water and so on.
Third, qy oil-immersed submersible pump Use conditions:
1, the working medium for the non-corrosive water, the media volume of sand than the volume ratio of not more than 0.10%, particle size is not greater than 0.20mm.
2, the medium temperature does not exceed 40 degrees, the medium of the ph value between 6.5-8.5.
3, the pump should be used within the scope of the use of the rated head, and should be completely immersed in water use, diving depth of not more than 5m.
4, the power frequency is 50hz, three-phase 380v, the voltage fluctuation range of 0.9-1.1 times the rated value. our website:www.shwhpump.com,Email:fay@welpump.com

Structure and Function of QY Oil filled Submersible Pump

QY oil filled submersible pump consists of water pump, motor and seal three parts.

① pump part: located in the upper part of the submersible pump, and the motor coaxial, the impeller in the form of centrifugal mixed flow and axial flow of three.

② motor part: the motor power of 2.2KW and 3KW, for the squirrel cage three-phase asynchronous motor, vertical filling the No. 5 mechanical oil. The motor is located in the lower part of the submersible pump.

③ Sealing parts: including dynamic seal and static seal. Dynamic seal for the overall double-ended mechanical seal, located in the motor shaft extension, that is installed in the cover and the formation of the water into the cavity, the cavity filled with No. 5 mechanical oil. Static seal is located in the pump at the mouth with the Department, with "O" -shaped rubber seals. our wibsite:www.shwhpump.com, email:fay@welpump.com

Disassembly and Assembly of QJ Deep Well Pump

Disassembly and Assembly of QJ Deep Well Pump

Demolition of Deep Well Pump

With the removable wrench, remove the water section, with the dismantling tube in the lower part of the pump impact hammer sets, impeller loose, remove the impeller, hammer-shaped sets, remove the guide shell, so unloading the impeller, Upper guide shell, check valve and so on.

Removal of motor

Remove the base, thrust bearing, thrust plate, lower guide bearing, connecting seat, throwing sand, remove the rotor, remove the upper bearing seat, stator and so on.

Assembly of deep well water pump

Before assembly check the cleaning of the parts of the rust, sludge, with the surface to be coated with butter rust, water pump large thread connection to oil.

(1) Assembly order of the motor: Stator assembly → Lower bearing housing assembly → Rotor assembly → Thrust plate → Shaft nut → Thrust bearing assembly → Base assembly → Upper bearing housing assembly → Skeleton oil seal → Connecting seat. Adjust the studs so that the motor shafts meet the specified requirements. And then on a good pressure regulating film, pressure spring and cover.

(2) the installation of the pump: the shaft and the water section fixed in the mounting seat, with the dismantling cylinder will impeller, hammer-shaped sleeve fixed on the shaft, and then install the guide shell, the impeller ... ... in turn loaded the upper shell , Check valves and so on.

Class 8 below the motor pump part of the assembly, the first in the water and the upper bearing bearing contact plane evenly distributed, add the same 3 ~ 3.5 mm gasket 3 to 4, and then even on the good pull nut, Shaft, pump shaft, good fixed bolts and lock ring, with the cartridge will be impeller, hammer-shaped sleeve fixed to the pump shaft, and then installed on the guide shell, the impeller ... ... so in order to pack the upper guide shell and so on. After the pump is installed, release the ribs, remove the gasket, and then tighten the ribs, and then turn the pump from the coupling, the rotation must be uniform.

Deep well pump to save

When the pump is not used for a long time, it should promptly send out the water inside the motor, wipe the surface clean, coated with anti-rust oil, on the relatively clean, dry, no chemical corrosion place. After the motor cavity is filled with water, strictly placed in the temperature of 0 ℃ and below the environmental conditions, or must be put in the cavity of water, to prevent cracking motor.

How to choose the right sewage equipment

How to choose the right sewage equipment; how to choose sewage pump

How to choose the right sewage equipment according to the type of sewage is the prerequisite to ensure the efficient use of the purchased products. In order to avoid waste of resources and maintenance frequency, in advance to do the selection work can be more with less. Which WQ submersible sewage pump is the most commonly used a sewage equipment, based on the media and the environment derived from the stainless steel submersible sewage pump, explosion-proof submersible sewage pump and other products, one of which is automatically stir the submersible sewage pump Products in the ordinary sewage pump on the basis of an increase of automatic mixing device, effectively prevent the impurity deposition caused by pump blockage, such as fiber material in the media can be another cutting device, reamer and other equipment. Such as pond sedimentation in the pool is more serious The choice of diving aerator, the series of products in the design of the principle of the use of gas-liquid mixing technology, the effective dispersion of impurities deposition. Relative to the deposition of sewage, ordinary sewage transport equipment selection is more extensive, according to the installation conditions, parameters, select the appropriate sewage pump.

Wqd submersible sewage pump maintenance six points

Want to ensure that wqd submersible sewage pump can be long-term stable operation, it should always be on the submersible sewage pump maintenance, sewage pump manufacturers today to teach you how to submarine sewage pump for routine maintenance.
1, if the submersible sewage pump for a long time not used, then you need to always wash, and placed in a ventilated and dry place, while paying attention to antifreeze. If you put in water, then need to run at least 15 days every 30min (not dry grinding), pay attention to check the pump function and adaptability.
2, pay attention to replace the seal ring: When the pump in the sewage medium for long-term operation, the impeller and seal ring gap is likely to increase, resulting in pump flow and efficiency, should turn off the gate, the pump lift, remove Bottom cover, remove the seal ring, according to the actual size of the impeller ring ring with the seal ring, the gap is generally about 0.5mm.
3, the cable at least once a year check, if damaged please give replacement.
4, at least once a year to check the motor insulation and fastening screws, if the motor insulation drop please find someone to repair, if the tightening screws loose, please re-tighten.
5, submersible sewage pump in the factory has been injected with the right amount of oil to lubricate the mechanical seal, the oil should be checked once a year. If you find water in the oil, it should be let go, replace the oil, replace the gasket, tighten the plug. After three weeks, to be re-check, if the oil into the emulsion, the mechanical seal should be checked, if necessary, should be replaced.
6 ,, submersible sewage pump operation failure, please press the troubleshooting method given, such as still can not be resolved, and can not determine the reasons, do not self-chaos repair, should immediately find someone to repair.

How deep well submersible pumps prevent corrosion

Control of groundwater corrosion of the well pipe mainly from two aspects.
First, improve the corrosion resistance of pipe, the use of good corrosion resistance of the material. Second, remove or suppress some of the factors that produce corrosion. Generally have the following deep well submersible pumps anti-corrosion measures:
1. The use of high-quality materials, good corrosion resistance of the pipe, connecting screws, copper wire rope, can be doubled to extend the service life. The same kind of metal material as far as possible the use of smooth surface, without rough; with annealing, without hardening. Stress concentration at the welding port is easy to produce corrosion, in the production and installation should be avoided.
2. Coating (plating) protective layer in the pipe surface coating (plating) protective layer has the following characteristics: electrical insulation, integrity and durability, coated material has a certain adsorption force and strength, and non-toxic and economical.
3. Replace the screw with the deep well submersible tubing connection screw, every year to mention the wellhead repair replacement, preferably with galvanized screw connection. The steel wire is coated with oil or plastic.
4. Strengthen the regulation of heavy calcium carbonate in a large number of precipitation areas, as far as possible to take various measures to reduce the water supply pipe shaft water level, reduce the water speed, that is, increase the filter caliber, increase the water area, when the water demand to determine the use of small pumping Drop, gravel diameter using upper limit.

Mixed flow pump use and maintenance

Mixed flow pump is the use of impeller rotation generated by the centrifugal force and thrust combined work, oblique flow, also known as diagonal pump, a worm (horizontal) and guide vane (vertical) two.Shanghai Weihu wholesale mixed flow pump manufacturers how to use and maintenance.
(1) bearing the use of thin oil lubrication, should always check and control the bearing body of the oil standard rod between the two marking; bearing grease lubrication, should be regularly replenish the amount of 100 ~ 350HW mixed pump removed the front cover And the back cover to add, the 400 ~ 650HW mixed flow pump can be added through the oil cup.
(2) often check the bearing temperature rise. Generally not higher than the ambient temperature of 40 ℃, the maximum temperature shall not exceed 80 ℃.
(3) Note whether the mixed flow pump running friction and impact, such as mixed flow pump cover and impeller friction, can be mixed in the mixed pump cover and mixed flow between the pump to increase the actual use of gaps 0.3 to 0.7 mm.
(4) the adjustment of the filler must be appropriate, the liquid should be from the packing gland at the drop-like intermittent leakage. Filler is too tight, the shaft will heat and power increase; filler too loose, liquid leakage too much efficiency.
(5) If the motor is connected directly with the mixed flow pump, the axis of the two axes should be on a straight line.
(6) check the inlet pipe with or without leakage phenomenon.
(7) Note whether the power suddenly increased or decreased, whether the flow suddenly reduced, if any, should be excluded.
(8) Always check whether the bolts are loose due to vibration.
(9) in the winter, after the parking should be mixed flow pump and pipeline water discharge.
(10) mixed flow pump for 200 hours or six months after the initial use of lubricating oil (grease). After every 1000 hours or a year after the oil change.
(11) mixed flow pump work 3000 hours or three years after the disintegration of inspection and maintenance.
(12) For long-term suspension of the mixed-flow pump, the operating part should be removed for rust-proof treatment and proper custody.

Selection method of self - priming sewage pump

Self-priming sewage pump products in the sewage pump series and self-priming pump products belong to a commonly used pump products, it and self-priming and sewage function so called self-priming sewage pump, many users of self-priming sewage pump products Of the technical information to master less, the following Shanghai weihu sewage pump manufacturers introduced under the suction sewage pump on the selection method.

First to confirm the good medium is what medium, whether corrosive containing corrosive selection of stainless steel material is competent, weihu self-contained sewage pump products corrosion-resistant materials are only a variety of stainless steel material, if the stainless steel material can not be used to re-election without seal Self-priming pumps can be used instead.

And then confirm the medium inside the solid particle diameter and fiber length, respectively, usually the diameter of the solid particles is 10% of the pump diameter, for example, the pump diameter is 100mm then the maximum diameter of the pump through the diameter of 10mm, fiber length of the pump diameter of 60% Length, such as 100mm caliber Yantai self-priming sewage pump through the fiber length of 60mm long, if beyond the above range, then we recommend the use of open impeller weihu self-suction sewage pump better.

In addition, the self-priming suction pump self-priming height is also extremely critical, the most commonly used Yantai self-priming sewage pump is ZW self-suction non-clogging sewage pump and ZWL direct Yantai self-priming sewage pump, Height is within 5 meters, 5 meters altitude when the self-priming time in 3-5 minutes or so, the only difference is that they are ZW with coupling type, ZWL are non-coupling type, ZWL machine occupies Small size and compact structure.If the self-priming height of 5 meters and self-priming time is very short recommended the use of vacuum suction pump or the fastest suction pump.

And then is to choose the right flow, head, flow head if you feel the need for large flow head is relatively small We recommend the use of small self-priming pump products, the small self-priming pump can also be used as a sewage, because the impeller are The use of open-type impeller structure, and that self-priming sewage pump flow head is too small can also choose my company's high-flow self-priming pump products

Automatic mixing sewage pump characteristics

Automatic mixing sewage pump is based on the ordinary sewage pump with automatic mixing device, the device with the motor shaft rotation, resulting in a strong stirring force, the sediment pool into the suspension of suspended solids, inhalation pump is discharged Obvious advanced and the use of environmentally friendly products. The following let the Shanghai Weihu sewage pump wholesale manufacturers to introduce the characteristics of the automatic mixing sewage pump
1, with automatic mixing device, resulting in a strong stirring force, the pool of sediment into a suspension into the impeller discharge, to the role of dredging.
2, the use of new sealing materials and sealing process, so that the pump can be long-term submerged into the water work.
3, the use of large channel, with anti-winding anti-jamming function of the impeller, greatly expanded its scope of application.
4, the use of advanced electronic control technology, so that the pump has overload, lack of phase, leakage, ultra-water level alarm and other automatic protection functions and level automatic control function.
5, the use of mobile and automatic coupling fixed installation, to meet the construction of a variety of sewage, waste water to enhance the needs of places, and for the pump maintenance, maintenance, maintenance brings great convenience.
The above is to explain today's automatic mixing all the contents of the sewage pump, and hope to help everyone in the use of more simple, and we will make persistent efforts to provide you with useful articles, common progress, but also hope that we can pay more attention to us, Thank you for your cooperation.

What is a stainless steel deep well submersible pumps

What is a stainless steel deep well submersible pumps
Stainless steel deep well submersible pump is a kind of water submersible pump. Stainless steel submersible pump power part with the current international advanced technology to produce oil-immersed, flooded stainless steel submersible motor, flooding motor on the absolute water pollution, is the current domestic and foreign deep well pump in the boutique. Selection of high-quality stainless steel shell, shaft, coupling, steel inverted shell, the new "floating" structure of the impeller during the work of the motor without axial force. Can transport high temperature pollution-free water without impurities, is the first submersible pump can withstand high temperature 120 ℃ submersible pump.
Stainless steel Deep well submersible pump Features: submersible pump small diameter, large flow, high head, suitable for small diameter deep wells, can significantly reduce drilling costs. Appearance smooth, beautiful, noble quality, anti-sand wear, long life, pumping high efficiency, energy saving, easy maintenance.
stainless steel submersible pumps Applications: especially for industrial and mining, agriculture, construction, aquaculture, water towers, deep wells and high water, fountains. Food and beverage industry and family (or high-level water) use.
Weihu pump factory stainless steel submersible pumps: deep well submersible pumps, small high-lift submersible pumps, small wells with multi-stage submersible pumps, small stainless steel sanitary submersible pumps, small stainless steel submersible pumps for the transmission of non-impurity liquid.

Stainless steel submersible pump maintenance is divided into three categories

China's stainless steel submersible pump maintenance is divided into three categories, the following for you one by one, I hope to help you:
First, the stainless steel submersible pump minor repair
1, mechanical seal: replacement, cleaning
2, check the bearing and oil room, replace the transformer oil
3, to eliminate the defects found in the operation and leakage, check and tighten the various bolts.
4, cleaning and maintenance of their own valves
Second, the stainless steel submersible pump in the repair:
1, including minor repair content
2, repair mechanical seal, repair and replacement parts
3, disintegration, check the parts of the wear and tear, corrosion and erosion degree, be repaired or replaced
4, check the shaft wear, corrosion and straightness, repair or replacement
5, check the bearing wear, scraping the bearing, adjust the gap, and replace the bearing
6, check and adjust the impeller seal ring, sleeve, gland, shaft seal and other parts of the gap.
7, check the impeller static balance and rotor dynamic balance.
8, check, clean and repair the motor.
Third, the stainless steel submersible pump overhaul:
1, including mediation content
2, more, good impeller
3, replace the pump shaft
4, the pump body thickness, identification, do the necessary repair
5, measuring and adjusting the level of the pump, rust and corrosion.

Agricultural submersible pump to buy and use points

Submersible pump compact and lightweight, in rural production and life plays an important role in the use of the following points should be noted.
First, the purchase of submersible pumps should pay attention to its model, flow and head. If the selected specifications are not appropriate, will not be able to get enough water, can not play the efficiency of the unit. In addition, should also find out the direction of rotation of the motor, some types of submersible pump forward and reverse can be when the water, but reverse the amount of water, the current is large, the reverse will damage the motor windings. In order to prevent submersible pump work in the water leakage caused by electric shock accident, should be installed leakage protection switch.
Second, the installation of submersible pumps, the cable to overhead, the power cord should not be too long. Do not allow the cable to force the unit when it enters the water, so as not to cause the power cord to break. Do not sink submerged into the mud, otherwise it will lead to poor heat dissipation and burn the motor windings.
Third, try to avoid the boot at low pressure. The power supply voltage and the rated voltage can not be a difference of 10%, the voltage is too high will cause the motor overheating and burn the winding, the voltage is too low, the motor speed decreases, such as up to 70% of rated speed, start the centrifugal switch will be closed, resulting in start winding Prolonged power and heat and even burn the windings and capacitors. Do not frequently switch the motor, this is because the pump will stop when the return flow, if the boot immediately, will start the motor load, resulting in starting the current is too large and burn the winding.
Fourth, do not let the pump long-term overload operation, do not smoke a large amount of water, the pump dehydration operation time should not be too long, so as not to overheat the motor and burned. In the operation, the operator must observe whether the operating voltage and current are within the values ​​specified on the nameplate at any time. If the motor is not in compliance, the motor should be stopped to find out the cause and eliminate the fault.
5, usually check the motor, such as found under the cover with cracks, rubber seal ring damage or failure, etc., should be replaced or repaired in time to prevent water penetration into the machine.

Shanghai Weihu Pump is a modern enterprise with joint-stock system as product, scientific research, development, design, production and sales. As a professional water pump manufacturer , wholesale submersible pump,  choose Weihu Pump, we are committed to you Procurement to provide professional consultancy services to ensure that you buy the right model, the right material, cost-effective pump products, if you have other aspects of the problem, you can call our technical experts, experts will give a professional answer.

The reason for the increase of power consumption of submersible pump

The reason for the increase of power consumption of submersible pump
Symptom: submersible pump running pump head and flow for the rated conditions, but the ammeter pointer exceeds the rated current of the motor, resulting in increased power consumption.
Submersible pump power consumption is mainly due to mechanical problems. If the newly installed submersible pump coupling is improperly assembled, that is, the axis of the pump is not on the same line, the impeller sweeps the pump, which will increase the current when the submersible pump is running and reassemble the submersible pump. Normal operation of the submersible pump, motor bearings and thrust bearing wear; pump bearings and impeller wear; motor rotor sweep chamber.
These will increase the mechanical loss of submersible pumps, resulting in increased current and consumption of electrical power. Submersible pump should be used for a certain period of time to carry out maintenance and replacement of wearing parts.

China professional submersible pump manufacturer - Shanghai Weihu pump,We provide cheap high-quality sewage pump and submersible pumps, welcome to wholesale submersible pump; we will provide you the best service

How to check the QY oil-filled submersible pump parts

How to check, clean and dry the QY oil-filled submersible pump parts
(1) Inspection, cleaning and drying of the oil-filled submersible pump parts Check the parts of the submersible pump, especially the upper and lower end faces, mechanical seal boxes, outlet box parts, cable seals, bearings and seals , If damaged, should be promptly repaired or replaced. Parts should be clean and dry.
(2) oil filled submersible pump motor stator cleaning and drying need to carry out maintenance of the oil-filled motor stator should be clean, in order to prevent the water into the run in the stator winding affect the motor insulation performance, the stator winding should be dry deal with. Damaged stator windings should be removed, re-embedded, dipped in paint. The residual paint on the inner surface of the stator core during the dipping process should be scraped off.
(3) oil-filled submersible pump rotor and bearing cleaning cleaning rotor and drying; with clean gasoline cleaning bearings, cleaning requirements after the rotation of the bearing smooth, light no noise.

QY oil-filled submersible pump use precautions

Qy oil-filled submersible pump is the majority of farmers, industrial and mining enterprises widely used in power irrigation and drainage equipment. The pump for agricultural irrigation and drainage, garden irrigation, fountain water supply, underground water, water towers water, urban construction, industrial and mining enterprises such as water supply and drainage. The series of pumps compact structure, light and easy to move, bearing lubrication conditions are good, low noise, long life. Double-end integral seal, durable, safe and reliable
Qy oil filled submersible pump Note:
1, submersible pump specifications performance should be consistent with the actual use of the situation should be carefully checked before use.
2, submersible pump with the outlet diameter should be matched with the pump diameter.
3, the power capacity should be above 5.5 kVA, three-phase, 380 volts, AC 50 Hz.
4, submersible pump live or pumping work, do not wash things in the vicinity, swimming or work, do not let the animals in the vicinity of the water, to prevent electrical leakage in case of electric shock accident occurred.
5, submersible pump can not smoke a large amount of water or mud water.
6, submersible pump suddenly does not turn, or a sudden reduction in water and other abnormal phenomena, to be shut down inspection, be sure to cut off the power, and then removable disassembly.
7, the pump should be equipped with motor protection switch (factory has a "protection switch action current has been set up, the user may not change their own.
8, at any time are not allowed to pull the power pump cable. When using the full inspection of the cable, found damaged immediately replaced before use.
9, the voltage fluctuation is allowed between 342 and 418 volts. Such as the use of electric distance from the power pump should be appropriate to increase the cross-sectional area of ​​the wire.
10, lead out a cable with a ground mark of the yellow-green two-color core wire must be ground, if no fixed ground, available 2 m metal rod buried in the river, lake shore, ditch or wet soil line.
11, before use should check the upper and lower cover oil hole screws are loose oil leakage phenomenon. Outlet box on the middle of the m8 screw test for the factory dedicated to prohibit users to loose their own.
12, before running with 500v megger measuring cold motor stator winding on the ground insulation resistance, the minimum shall not be less than 5mω, or can not be used, should be removed before the use of moisture.
13, before use should be idle on the land 1min0, check the pump is running properly, steering is correct.
14, the pump may not be dehydrated. In the pump work should pay attention to check the water level down, not allowed to show the pump running on the water. The diving depth of the pump ranges from 0.5 to 3 meters.
15, the pump should not be caught in the mud, not horizontal, it is recommended to use the external pump basket or wire basket to prevent water miscellaneous debris pump impeller.
16, after the start of the pump, such as the water is found to be small or no water, indicating that the direction of rotation of the pump is reversed, should cut off the power, the three-phase core in any two-phase exchange and then drive.

QDX deep well submersible pump working principle

QDX well submersible pump working principle
Before using the well submersible pump, the well submersible pump with the submersible pump and the pump must be filled with liquid. After the submersible pump is running, the impeller rotates at high speed, where the liquid rotates with the blade. Under the action of centrifugal force, the liquid will fly away from the impeller outward, in the pump shell diffusion chamber speed will be gradually reduced, and the pump casing will continue to increase the pressure, and then from the well with submersible pump discharge pipe out. At this point, in the center of the blade because the liquid was thrown around to the formation of neither air nor liquid vacuum low pressure area. Liquid in the liquid pool under the action of the atmospheric pressure in the pool, through the submersible pump with a submersible pump into the pump inside the pump. This is the liquid into the well with the principle of submersible pumps, in the continuous movement of the liquid suck up and continue to flow out.
Submersible pump basic parameters: including flow, head, pump speed, matching power, rated current, efficiency, outlet diameter and so on.
Well submersible pump is composed of control cabinet, diving cable, water pipe, submersible pump and submersible motor. The main purpose and scope of application of submersible pumps include mine rescue, construction and construction, water and agricultural irrigation and drainage, industrial water cycle, urban and rural residents to reference water supply, and even disaster relief and so on. On the use of media, wells with submersible pumps can generally be divided into water submersible pumps, sewage submersible pumps and seawater submersible pumps (corrosive) three categories.

Classification of stainless steel water pumps

Stainless steel water pump: As the name suggests, is made of 201 stainless steel, 304 stainless steel, 316L stainless steel and other materials using finishing, stretching, welding and other different production process, processed into the water has reached the pumping medium for the purpose of the pump, The market is very widely used. Its characteristics are: beautiful appearance, low noise, no leakage, long life, high performance, smooth operation and other characteristics, according to different application requirements, its performance is more prominent.
According to the different media: stainless steel submersible pumps can be divided into different sub-categories, in the pumping well water, fountains, water pressurization system water, etc., under normal circumstances choose SJ (P) stainless steel deep well pump, Selection, which features high efficiency, high reliability, compact structure, low noise, long service life and other advantages, and can meet the health requirements. 316 material pump for corrosive liquids. According to the user's environmental requirements, QXF, SPS and other stainless steel pump is also a good choice.
Stainless steel sewage pump, also known as stainless steel submersible pump, the main application and the environment is relatively poor, the media has a certain corrosive, and according to the different media, such as: the media contains solid particles or fiber material, medium temperature is relatively high , But also can be derived for the stainless steel cutting sewage pump, stainless steel stir well sewage pump, stainless steel high temperature corrosion resistant submersible pumps and other types. According to the different media, choose a different type of stainless steel submersible pump, the maximum amount of pump to play the excellent performance to meet the application conditions, so the pump selection is particularly critical.

304 stainless steel submersible pump model

Shanghai Weihu Pump Manufacturing Co., Ltd. to provide you with stainless steel submersible pump model.
At present, Weihu Pump Company has the following models:
1, qdx series pumping water stainless steel submersible pump
2, qwp series pumping sewage common with small particles of submersible submersible pumps, and can be added on the basis of the mixing wheel to achieve mixing of the media after the mixing, and can be installed on the basis of the pump stainless steel blade chopped weed toilet paper Class function and discharge.
3, qj system submersible pump is used in deep wells or reservoirs, the main advantage is the size of the flow have more than 300 head also has a good performance. But this pump is also limited to clear water medium.
4, qs series submersible pump is a power 0.55kw-7.5kw within the pump, mainly for fountain products.
5, qy system submersible pump is the oil oil-immersed structure, the application of fountains and irrigation.

Deep well pump enterprise development direction

Deep well pump company's development direction, how the development model directly determine the future development of our industry ideas, we believe that in the deep well enterprises which we need more consideration of product quality, product sales. As well as the reputation of enterprises in the market, these are the direction of our development, is the basis of our business survival, where we think that a good business first is to have a good development ideas, from a long-term perspective, from Point to think, to consider 5 years later or 10 years after the development of our industry status, development model, so that we can in the future development of the current layout of the work on how to do, how to do, how to do are very important.
In the international deep well pump to enter the Chinese market today, we need our own enterprises to face the increase in the difficulty of competition coefficient, companies need constant learning, innovation, continuous research and development of new products, the use of the latest materials, and product processing Technology needs constant innovation, enterprises can get permanent development, enterprises can get new vitality. We welcome you to buy our Yidong brand deep well pump products, product life is long, the product delivery cycle is shorter, to meet the needs of customers in a timely manner

Deep well pump option points

Deep well pump options points: the various types of deep well pump on the market, just look very bad distinction. So how to choose deep well pump? Here are some deep well pump selection experience.
First, according to the well diameter, water quality initial pump type. Different types of pumps on the size of the wellbore diameter have certain requirements, the maximum size of the pump to be smaller than the diameter of 25 ~ 50mm. If the wellbore is skewed, the maximum dimensions of the pump should be smaller. In short, the pump part can not close the well wall to prevent the pump vibration will damage the well.
Second, according to the well of the water, select the flow of the pump. Each eye has an economically optimal effluent, and the flow rate of the pump should be equal to or less than the hour when the well water level drops to half the depth of the well. When the pumping capacity is greater than the well water output, it will cause the machine wall collapse and siltation, affecting the service life of the well; if the pumping capacity is too small, the benefits of the well will not be fully exploited. Therefore, the best way is to pump the pump test to the wells may provide the maximum amount of water for the selected well pump flow basis. Pump flow to the label model or instructions on the number of indicators prevail.
3. According to the depth of the well water level and the loss of the head of the pipeline, it is necessary to determine the head of the well pump, that is, the head of the well pump, which is equal to the vertical distance (net head) of the water level to the water level of the outlet pool plus the loss head. Loss of the head is usually the net head of 6 to 9%, usually 1 ~ 2m. Pump the bottom of the impeller into the water depth of 1 ~ 1.5m is appropriate. The total length of the downhole section of the pump tubing shall not exceed the maximum length of the well specified in the pump instructions.
Four, suggesting that wells with more than one ten thousandth of the wells, should not be installed using deep well pumps

Deep well submersible pump manufacturers tell you how to pick deep well pumps

Deep well pump huge production needs to stimulate the birth of a large number of deep well pump enterprises, the market deep well pump brand varies greatly, coupled with the deep well pump working environment is different, how can we pick a suitable deep well pump? Selection will be greatly improved work efficiency, selection of mistakes, not only can not play its effectiveness, but also increase production costs. So in the selection of deep well pump should be considered in the following aspects.
Deep well submersible pump manufacturers tell you how to pick deep well pumps
According to the allowable exploitation amount of the water source well, the deep well submersible pump is selected, and the specifications and models of the deep well submersible pump are determined according to the water level of the water source well to determine the reasonable structure of the water source well.
2, the diameter of the deep well pump must be consistent with the diameter of the wellbore. In order to make the deep well pump from the smooth, groundwater when the space can be quickly pooled, no resistance can reduce the pump running wear and tear, requiring the water pipe and pump parts of the well diameter is greater than the maximum diameter of the pump 20 ~ 40 mm, That is, the maximum diameter of the pump body and the annular wall between the ring gap should be 10 ~ 20 mm, in order to extend the wells and deep well submersible pump life;
3, according to the total loss of pressure to choose deep well pump. The diameter, head (series) and power of the deep well submersible pump are selected according to the total loss of the required pressure head from the pump head to the ground pool or water tower according to the deep well submersible pump. The water pressure increases with the number of impellers. Deep well pump impeller immersed in water work, only the head without suction. Rated head and pump actual running head, can not be too much difference, absolutely can not be higher than the actual head of 25%. The pump head is high, the required motor power, easy to cause the pump has a larger string, the light wear the impeller and the leaf shell, heavy in the shell of the bearing (from the limit role) easy to stick with the pump coupling, Causing the pump can not run, the motor overload winding will burn out.
4, according to the maximum allowable exploitation of water wells to select the multi-stage diving pump. The pump pump must be consistent with the actual amount of water in the wells, the pump must be equal to or slightly less than the actual amount of water wells, or will inevitably produce strong pumping, not only will shorten the life of the deep well submersible pump, Network destroyed, resulting in more than sand, and even cause the wells scrapped.
5, deep well pump pump downhole position Deep well submersible pump pump head, absolutely not in the filter tube (flower tube) position, must be in the wall tube (tube) position, otherwise pumping will be more than sand or The wells are destroyed. According to the electrical survey curve of the probe, the two sides, according to the well and adjacent water source of the hydrogeological conditions (aquifer depth, aquifer thickness, aquifer lithology) and the pump operation, The well of the well structure (well diameter, flower tube, solid pipe position) and well depth and pump selection to ensure that the future, the next pump and pump operation process, without any problems.