Application field, overview

Submersible pump is a new water pumping machinery, machine and by diving submersible pump components. It is widely adapted to agricultural irrigation, urban and rural living areas, industrial and mining drainage and construction rainfall and rivers, reservoirs, fountains, refrigeration cooling systems, thermal baths and other water conservancy facilities. Its main feature is motor, water pump into the water work together as one, use, easy maintenance, high efficiency, safe and reliable operation.

Use conditions

     1) Power: 380v three-phase AC, 50HZ.

      2) Water quality: a) the temperature of water is below 20 (high temperature resistance 80)

                    b) The solid content is less than 0.01%. (According to the quality)

                    c) PH 6.5-8.5

                    d) The content of hydrogen sulfide is less than 1.15mg/l

                    e) The concentration of chlorides is less than 400mg/l

     3) The inner part of the diving electric pump must be full of clean water and diving electric pump must safely submerge to wok.

     4) Mounting depth shall not exceed 20% of water pump rated head and well face must be smooth and straight.

Construction

  1) The submersible pump mainly consists of feed point, water pump shaft, impeller, blower inlet casing, rubber bearing, check valve (option) etc. The submersible motor consists of base ,voltage regulating  film , trust  bearing, thrust disc , lower guide bearing block, stator, stator winding , rotor ,upper guide bearing block , sand off ring , outlet cable etc.

2) Main features:

    a) The motor is wet submersible motor. The motor chamber must be filled with clean water which is used for cooling motor and lubricating bearing. The voltage regulating film on the base of motor is used for adjusting pressure difference and dilation of water in the inner part of motor caused by motor temperate changes.

    b) In order to prevent the sand grains from a well from entering into the inner part of motor, upper shaft extension is installed two seal oils which are installed backward and sand off ring is installed.

    c) To prevent water pump shaft from jumping, water pump shaft and motor shaft are connected by coupling and a thrust bearing should be installed in the under parts of motor.

 d) The water lubricates the motor and water pump bearing.

    e) The submersible motor winding wires are used for the stator winding .So it insulates well.

    f) The centrifugal impeller and vertical blower inlet casing are used for water pump and the structure is simple.

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