SUBMERSIBLE PUMP VALVE Russian patent published in 2023 - IPC F04B53/10 F16K15/02 

FIELD: oil industry.

SUBSTANCE: invention relates to the oil industry and can be used as part of downhole pumping equipment for oil production, as well as in other branches of engineering. The submersible pump valve contains a housing in which a shut-off element is placed, made in the form of a plunger, with the possibility of forming a shut-off pair with the inner surface of a cylindrical seat made of a set of metal rings movable in the radial direction, sealed with elastic elements of the rings. With relative mobility to the body, the plunger is rigidly connected to the straight-through centralizer, and the outer diameter of the straight-through centralizer is made with a minimum clearance in relation to the inner diameter of the cylindrical seat, and the lower end of the straight-through centralizer is made in the form of an annular stop, and the outer diameter of the annular stop is greater by 0.2 -0.3 internal diameter of the cylindrical seat. Above the cylindrical seat, an additional seat is installed with the possibility of tight interaction with the supporting conical surface made in the upper part of the plunger, and the seating surfaces of the elastic elements of the rings of the cylindrical seat are eccentrically displaced relative to each other and are made on the inner surface of the mandrel located inside the body.

EFFECT: increasing the operational reliability of the valve, increasing the flow sections, which reduce hydraulic resistance, providing more reliable centering of the shut-off body.

1 cl, 3 dwg