1.Submersible electric pump is composed of five parts: water pump, motor, water line, waterproof cable and control switch.Water pump belongs to single suction multistage centrifugal pump.
2.Submersible motor adopts YQS type waterfllled wet structure,the chamber full of clear water, mainly for cooling the motor and the bearing lubrication. During operation, as the temperature changing may cause the waterfilling volume to vary, a pressure regulator is equipped in the motor to allow the calibration.
3.For preventing the sand getting into the motor, a sand-preventing sealing mechanism consisting of a sand thrower and a mechanical sealis mounted on the upside motor, composing a sand preventing structure, the whole motor is well sealed by its sealing structure.
4.There are water injection hole and exhaust hole in the upper part of the motor and discharge hole in the lower part.
5.Thrust bearing and thrust collar are installed at the lower part of motor, mainly subjected to the axial force of the electric pump.
6.The winding of motor stator adopts water-proof electromagnetic wire with good insulating and water-proof functions and rotor adopts squirrel-cage structure.