Overview of Axial Flow Pumps

First, the axial flow pump is mainly applicable to low-lift, high flow of occasions, such as irrigation, drainage, dock drainage, canal lock water level adjustment, or for large-scale power plant circulating pump. A high axial pump (if necessary, made of two-stage) for shallow water jet propulsion purposes.
As a rainwater, the main equipment of the submersible pumping station is QZB type submersible axial flow pump and QH (B) type submersible mixed flow pump, is the motor and axial flow pump and mixed flow pump combination of electromechanical products, is the traditional long axis Flow pump and mixed flow pump replacement products.
Main features: simple civil engineering, low project cost, easy maintenance and management, easy operation and easy automation, good work reliability, beautify the environment and develop rapidly.
Second, the submersible pump and the traditional long-axis pump in addition to the use of occasions, access to water conditions, the characteristics of the parameters are basically consistent, but also has the following significant advantages:
 Pumping station total investment savings of more than 30%;
 Construction period savings of more than 40%;
 Unit installation time savings of more than 95%;
 Unit weight reduction of more than 50%;
 Saving the pumping station flood control wall investment;
 Low maintenance costs;
 No running noise, easy to operate, easy to automate operation;
 The height of the ground building is low, the pump house can be saved, and the pumping station can be built under the ground.
Therefore, the axial flow pump and mixed flow of new and old customers in the new pumping station project can be easily replaced by submersible pumps, retro pump in the old pump project to update the submersible pump, the pump is mainly applicable to the following occasions:
 Irrigation and drainage;
 Municipal rainwater and mild sewage;
 Industrial process water, cooling water;
 Water Diversion Project.
Submersible pump nominal water diameter from 350,500,600,700,800,900,1000,1200,1400,1600 a total of ten kinds of caliber, the flow range of 0.12-12m3 / s, head range of 2-14m; power range of 7.5-630kW; Voltage class 380V, 660V, 3kV, 6kV, 10kV.
 Third, the structure that
QZB submersible axial flow pump and QH (B) type submersible pump, pump section from the water bell, impeller parts, impeller shell and guide vane four parts.
The submersible motor is a fully sealed dry asynchronous motor, the cabinet will be closed, the motor at the top of the cable outlet at the static seal device, the motor under the cover of the shaft at the shaft of the sealing device, submersible motor with all the safe and reliable performance of diving. The seal leakage, coil and bearing temperature are monitored, alarm and protection devices, does not affect the normal operation of the motor early leakage (only alarm). When the coil temperature exceeds 135 ℃, the bearing temperature exceeds 90 ℃, the use of power protection, all protector by a submersible pump dedicated protector to monitor, to ensure the safe use of submersible pumps.
The sensor output signal is received by the submersible pump protector. The protector for each output signal, including the switch or analog output, respectively, a switch signal, and the protector shows the alarm flash signal.