ELECTRIC CENTRIFUGAL PUMP INSTALLATION Russian patent published in 2010 - IPC F04D13/10 F04D29/62 

FIELD: engines and pumps.

SUBSTANCE: installation includes modules of electric motor, hydroprotection, pump, as well as cable line, remote cable connection station, blowoff valve, check valve, gas separator, tubing strings, wellhead equipment, complete transformer device. Modules of electric centrifugal pump installations (ECPI) are connected by means of the devices containing differential hollow piston 17, support elements 19 in the form of levers with slips, elastic base 21 and housing 13 with bores 16, which is equipped with longitudinal openings 18. Bores 16 comprise differential cylinder corresponding as to diametres to differential hollow piston 17. In longitudinal openings 18 there arranged with axial stroke reserve are levers of support elements 19, which are kinematically connected to differential hollow piston 17 and equipped with inner taper bores 20. Bores 20 interact with elastic substrate 21 provided with external taper surface 22.

EFFECT: increasing ECPI service life and operability owing to damping of bumps of submersible device against casing pipes and decreasing the amplitude of its vibrations.

3 dwg