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Valve ball type check valve

A single-flow valve and valve ball technology, applied in the field of ball-type check valves, can solve the problem of being difficult to adapt to the working state of non-vertical installation, and achieve the effects of simple structure, good versatility and increased flow area

Pending Publication Date: 2019-06-11
SINOPEC NORTH CHINA OIL & GAS CO
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a valve ball check valve to solve the problem that the existing valve ball check valve is difficult to adapt to the working state of non-vertical installation

Method used

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Embodiment 3

[0038]Embodiment 3 of the present invention. The difference between this embodiment and Embodiment 1 is that the side wall of the ball sleeve 7 in this embodiment is provided with through grooves arranged at intervals in the circumferential direction, and the whole is a cage structure. The groove forms the flow opening.

[0039] In other embodiments of the present invention, the valve body 11 can also be replaced with other shapes, and the inlet 2 and outlet 3 of the check valve can also adopt other distribution forms, for example, the inlet 2 and the outlet 3 are arranged vertically. The axes of the valve seat 5 and the ball sleeve 7 can be arranged obliquely with respect to the direction of the inlet 2 or the direction of the outlet 3 . In addition, in other embodiments, the ball sleeve 7 can also be fixed on the valve body 11 by other means, such as integrally manufactured on the valve body 11 , or fixed on the valve body 11 by welding. In addition, in other embodiments, t...

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Abstract

The invention relates to a valve ball type check valve. The valve ball type check valve comprises a valve body, wherein an inlet and an outlet which are used for being connected with adjacent pipelines are arranged on the valve body; a valve seat and a ball sleeve are arranged in the valve body; a valve ball body matched with the valve seat is arranged in the ball sleeve; the valve ball body is movably arranged in the ball sleeve; an overflow port communicates with the outlet and is arranged on the ball sleeve; and the axes of the valve seat and the ball sleeve are obliquely arranged relativeto the inlet direction and / or the outlet direction of the valve body. According to the valve ball type check valve, whether the valve ball type check valve is vertically installed, horizontally installed or obliquely installed at a proper angle, the ball sleeve can be kept in an oblique state, the valve ball can move towards the valve seat by virtue of self-weight, and the reliable closing of a valve port is guaranteed; and compared with the prior art, the valve ball type check valve can adapt to different installation angles, is good in universality and wide in application range, and can fully exert the characteristics of simple structure, low cost, reliable performance and convenient maintenance.

Description

technical field [0001] The present invention relates to a valve ball type check valve. Background technique [0002] Check valve is a kind of one-way valve, which is used in many occasions, such as valve ball check valve, which has simple structure, low cost, reliable performance and easy maintenance, and is widely used in some special occasions, such as in the field of oil and gas exploitation , Oil and gas transmission pipelines or oil / gas wells are often used at the Christmas tree at the wellhead of the valve ball check valve. [0003] Because the existing check valves rely on the self-weight return of the valve ball to realize the closing of the valve port, they all need to be installed vertically, that is, installed with the axis extending in the vertical direction. However, due to the layout requirements of the pipeline, the check valve on the Christmas tree and the oil and gas transmission pipeline sometimes needs to be installed horizontally, that is, installed with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/04E21B34/02
Inventor 范彦峰王中阳郭澜涛王洋洋崔翔宇张洋周鹏黄浩吝秋博周亮王新全王峰
Owner SINOPEC NORTH CHINA OIL & GAS CO
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