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Reciprocating pump valve deck and matched valve box thereof

A technology of reciprocating pump and valve box, which is applied to pump components, variable displacement pump components, components of pumping devices for elastic fluids, etc., can solve the problems of low service life of valve box and unreliable valve cover fixing, etc. Achieve the effect of reducing stress, improving fatigue strength and prolonging fatigue life

Pending Publication Date: 2020-05-08
HENGSHENG MECHANICS ZIZHONG COUNTY SICHUAN PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a reciprocating pump valve cover and its matching valve box to solve the problems of unreliable fixing of the valve cover and low service life of the valve box in existing equipment

Method used

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  • Reciprocating pump valve deck and matched valve box thereof
  • Reciprocating pump valve deck and matched valve box thereof
  • Reciprocating pump valve deck and matched valve box thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A reciprocating pump valve cover and its matching valve box, including a valve box and a valve cover, characterized in that the valve box includes a valve box body, the valve box body is provided with a valve box inner cavity, and the valve box body is located in the valve box A valve box taper hole is arranged above the inner cavity, and a number of valve box screw holes are provided on the upper surface of the valve box body outside the valve box taper hole. The valve box screw holes are distributed along the circumference of the valve box taper hole. The valve cover includes The bonnet cone and the bonnet boss connected to the top of the bonnet cone, the bonnet cone is provided with a bonnet sealing groove along the circumference of the bonnet cone, and the bottom surface of the bonnet cone is arranged along the circumference of the bonnet cone There are bonnet chamfers, and a number of bonnet through holes are opened on the bonnet boss outside the bonnet cone. The bo...

Embodiment 2

[0053] On the basis of Embodiment 1, a washer is sheathed on the double-ended stud under the nut.

Embodiment 3

[0055] On the basis of Embodiment 1, the upper surface of the boss of the valve cover is also connected with eyebolts.

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Abstract

The invention discloses a reciprocating pump valve deck and a matched valve box thereof, belongs to the technical field of petroleum engineering equipment, and aims to solve the problems that an existing equipment valve deck is unreliable in fixing and a valve box is short in service life. The valve deck comprises the valve box and a valve deck body, a valve box inner cavity is formed in the valvebox, valve box screw holes are formed in the upper portion of the valve box inner cavity, and a plurality of valve box screw holes are formed in the upper surface of the valve box. The valve deck body comprises a valve deck cone and a valve deck boss, a valve deck sealing groove is formed in the valve deck cone, a sealing ring is mounted in the valve deck sealing groove, a valve deck chamfer is arranged on the bottom surface of the valve deck cone, a plurality of valve deck through holes are formed in the valve deck boss, and the valve deck through holes are circumferentially formed along thevalve deck boss. Double-head studs are arranged, one end of each double-head stud is in threaded connection with the corresponding valve box screw hole, the other end of each double-head stud is sleeved with the corresponding valve deck through hole, and the double-head studs are sleeved with nuts above the valve deck through holes and are in threaded connection with the nuts. The reciprocating pump valve deck and the matched valve box thereof are disclosed.

Description

technical field [0001] The invention belongs to the technical field of petroleum engineering equipment, and in particular relates to a valve cover of a reciprocating pump and a matching valve box thereof. Background technique [0002] The most widely used reciprocating pumps in the field of petroleum engineering equipment are mainly mud pumps (also known as drilling pumps) and plunger pumps (also known as fracturing pumps). These two reciprocating pumps have a common feature: [0003] 1. The valve box is used to inject high-pressure mud into the ground. The main wearing parts in the valve box are the valve body and valve seat. In order to replace the valve body and valve seat, the valve box must be equipped with a movable "door". When the valve body and seat need to be replaced, the door is opened, and the "door" is closed during work. This "door" is the valve cover. Therefore, the first function of the valve cover is to control the opening and closing of the valve box, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/10F04B53/22
CPCF04B53/10F04B53/22
Inventor 易荣
Owner HENGSHENG MECHANICS ZIZHONG COUNTY SICHUAN PROV
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