Bushing structure and fracturing pump fluid end valve box

Abstract

The invention relates to the technical field of fracturing pumps, in particular to a bush structure and a fracturing pump fluid end valve box, a bush comprises a first interference face and a second interference face, one end of the first interference face is connected with the second interference face in an included angle mode, and the other end of the first interference face extends in the direction away from the first direction and close to the second direction; wherein the bushing is provided with a first through hole along the second direction, and the bushing is provided with a second through hole along the first direction; the first direction is perpendicular to the second direction; the limiting structure of the lining in the valve box body mainly depends on inclined plane contact limiting, and the risk that the lining falls off when working under high-pressure, reciprocating, vibrating and corrosive severe working conditions for a long time is eliminated.

Description

technical field [0001] The present application relates to the technical field of fracturing pumps, and in particular, to a bushing structure and a hydraulic end valve box of a fracturing pump. Background technique [0002] In the process of oil and natural gas exploitation, the fracturing pump is a device that uses the reciprocating motion of the plunger in the cylinder to realize the pressurization of the liquid. It has the characteristics of compact structure, high pressure and high efficiency. [0003] The valve box is the vulnerable part of the hydraulic end of the fracturing pump. Most of the ordinary carbon steel valve boxes have a working life of less than 350h, and the long-life stainless steel valve box has a life of 800-1000h, but the price is expensive, and if one of the chambers has cracks, the entire valve box will be damaged. Not available. [0004] The main working area of ​​the valve box is the intersection of the horizontal and vertical through holes. The i...

AI Technical Summary

Problems solved by technology

[0003] The valve box is a vulnerable part of the hydraulic end of the fracturing pump. Most of the ordinary carbon steel valve boxes have a working life of less than 350 hours, and the long-life stainless steel valve boxes have a service life of 800-1000 hours. Not available

[0004] The main working area of ​​the valve box is the intersection of the horizontal and vertical through holes. The intersection line is subject to the combined effects of high pressure, corrosive medium and fatigue load, which can easily cause cracks inside the valve box, resulting in leakage.

Images