The advantage of QJ deep well submersible pump

Deep well Submersible pump is one of the main industries of Shanghai Weihu Pumping Group. After a long period of research and development, the modified QJ deep well submersible pump has surpassed the national standard and is more efficient, energy saving and stable. Well with submersible pumps, also known as deep-well submersible pumps [diving deep-well pump], named from the well-known wells with the unique properties of submersible pumps.
  [Centrifugal type] The working principle of the submersible deep well pump is as follows: centrifugal impeller is used. When the pump is filled with liquid, the centrifugal force is generated by the impeller rotation, the liquid in the impeller flow passage is pumped to the outside by the centrifugal force, The liquid into the low pressure area, and the outside of the liquid pressure, the liquid is sucked into the impeller inlet, relying on the continuous rotation of the impeller, the liquid will be continuously inhaled and discharged through the multi-stage pump and impeller continuous work, the liquid obtained More energy, with greater outlet pressure out of the outlet.
Deep well submersible pump has the characteristics of high head, deep diving, radial size, small overall occupation space and high efficiency. It is the most important deep well water lifting equipment in people's life. Well with submersible pump features and the corresponding technical requirements are as follows:
  ① head high
  In order to meet the technical requirement of deep well pumping, the lift of submersible pump is higher. According to national standard of "Submersible Pump for Well" (GB / T 2816-2002), the lift range is 14 meters to 598 meters. In order to achieve high head, well submersible pump is generally multi-stage pump structure, the axial length is longer, resulting in a large axial force pump, how the integrated use of structural design and material selection to improve single-stage head, Axial force and radial concentricity control, determines the well with a submersible pump design and production more difficult.
  ② diving deep
  For the continuous access to groundwater resources or access to a deeper level of high-quality groundwater, wells with submersible pumps are generally placed tens of meters underwater, or even more than 100 meters deep water lift operations, subject to several or even a dozen atmospheric pressure, and With the increase in the depth of the pump placement, the pressure will be more and more. High-pressure environment on the motor sealing performance, parts of the anti-deformation, heat dissipation and parts design and manufacturing accuracy, reliability and other aspects have a higher demand.
  ③ special structure, radial size and overall space is small
  Wells with submersible pumps generally use multi-stage impeller structure and special hydraulic model design, each impeller bearing a smaller head, the radial size and overall space are small, can be widely used in smaller diameter wells, wells with diving Pump work of the well diameter generally only 100 ~ 400mm, drastically reduced drilling costs. This feature is one of the important reasons for its rapid popularization in recent years. The small size limit also puts forward higher requirements for its overall structural design, hydraulic model design and electromagnetic field design.
  ④ high efficiency, energy-saving effect
Well with submersible pump has a smaller radial size features, impeller outer diameter smaller, so that the work of high-speed rotation of the impeller and the fluid between the outer disk friction loss is greatly reduced, the full use of radial pump size, single Level head approach the maximum, the pump efficiency is significantly improved, energy-saving effect is better. At the same time, the submersible pump uses submersible motor and the pump body direct one structure, the pump unit's volume is small, may greatly reduce the manufacture cost, the movement safe is reliable, the unit efficiency is high, the energy conservation effect is obvious.
  ⑤ operating stability and environmental adaptability requirements are higher
  Because different voltage environment and natural environment of different countries and regions are quite different, and the well submersible pump is placed under the deep well, it is not convenient to put it out of the well. Therefore, the operation stability and environmental adaptability of the submersible pump The production enterprises must pay attention to the performance of submersible pump design, structural design and production process stability, to ensure product quality and reliable. At the same time, in order to ensure the safety and stability of the underwater operation of the deep well, the well submersible pump should be equipped with the automatic control function, and the water level sensor should be used to detect the water level and prevent the working environment from being damaged. jobs.
  ⑥ economic performance is better
  The well submersible pump has the characteristics of electromechanical integration, wide range of pump head, large displacement, compact structure, small volume, light weight, easy installation, safe and reliable operation and long-distance control. Long drive shaft, save a lot of pipe installation costs, in the use of the construction without the pump, can save infrastructure investment costs, with good economic performance