FIELD: engines and pumps.
SUBSTANCE: drive includes electric motor, heat exchanger and hydroprotector. Protector has additional hydroprotective barrier in the form of flange 13, edge seal 14 on shaft 19 of protector, thrust bushing 17 pressed with damper washers 18 and safety valves 15 installed in lower flange 16. Heat exchanger of electric motor is combined with compensator. On external surface of separating housing of heat exchanger there made is helical groove for laying of a spiral, and inside separating housing of heat exchanger there located is piston with sealing metal rings, at least two on both sides of each elastomeric sealing ring. Limit stop and meshed throttle fixed with a plug with inner hexagonal hole is installed on lower flange of heat exchanger, on the side of piston.
EFFECT: higher reliability, operating lifetime of drive of submersible part of pump plant and reduction of axial dimensions and metal consumption of the drive.
4 dwg
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