Introduction of submersible electric pump
Submersible electric pump refers to a kind of water pump in which the impeller of the pump body and the motor driving the impeller are submerged in the water. There are two types for deep well and working surface. The Submersible electric pump for deep well supplies power to the motor through a cable extending into the well, eliminating the need for a long drive shaft, so it is compact in structure, light in weight, easy to install, use and transfer. It has a tendency to replace long shaft deep well pumps in areas with power sources. Not applicable to wells with high sand content and areas without power supply.
The motors used in submersible pumps are dry type (the motor is fully sealed), semi-dry type (the stator of the motor is sealed while the rotor is running in water), oil-filled (the motor is filled with oil to prevent penetration of the windings) and wet (inside the motor) Filled with water, the stator and rotor are running in water) and other types. The first three types all need to be sealed and require high manufacturing and installation accuracy. Therefore, agricultural deep-well submersible pumps usually use wet motors. The stator windings use water-resistant insulated wires or synthetic resins are poured into the ends and slots of the stator windings. Water enters the motor. Small, the sealing structure can be greatly simplified, only sand control is required. Some deep well submersible electric pumps have a lift of up to 1400 meters and a maximum flow rate of 1.4 m3/s.
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