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Jacking high-pressure sealing dome valve

A dome valve, high-pressure technology, applied in valve devices, cocks including cut-off devices, engine components, etc., can solve problems such as damage to sealing rings, and achieve the effect of improving sealing performance

Pending Publication Date: 2021-05-07
CHANGZHOU YAHONG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing method is to use a compensation mechanism, that is to say, to deform the sealing ring downward so that it can be sealed against the valve seat. During long-term use, the sealing ring will be easily damaged;

Method used

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  • Jacking high-pressure sealing dome valve

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Embodiment Construction

[0015] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0016] Such as figure 1 As shown, the present invention is a jacking-up pressurized sealing dome valve, comprising: a valve cover 1, a sealing ring 2 is fixed on the inner bottom thereof; a rotating shaft support 3, a piston assembly 4 is fixed thereon; The end is fixedly connected with the top plate 5; the top plate 5 is covered with a valve seat 6; the valve seat 6 is suitable for offsetting against the sealing ring 2 driven by the piston assembly 4;

[0017] In this solution, the sealing ring is fixed on the valve cover and remains stationary, and the protruding end of the piston assembly drives the top plate and the valve seat to rise, and the valve seat ...

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PUM

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Abstract

The invention relates to a jacking high-pressure sealing dome valve, comprising: a valve cover, the inner bottom of which is fixed with a sealing ring; and a rotating shaft bracket fixed with a piston assembly. The extending end of the piston assembly is fixedly connected with a top disc; a valve seat is sleeved outside the top disc; and the valve seat is suitable for being driven by the piston assembly to abut against the sealing ring. According to the scheme, the sealing ring is fixed to the valve cover and keeps static, the extending end of the piston assembly works to drive the top disc and the valve seat to ascend, and the valve seat and the sealing ring abut against each other to achieve sealing, so that the service life of the sealing ring is prolonged, and the sealing performance is improved.

Description

technical field [0001] The invention relates to a dome valve, in particular to a jack-up and high-pressure sealing dome valve. Background technique [0002] During the working process of the ball valve, it is necessary to switch the valve seat and the valve cover between the open and closed states; when the valve seat and the valve cover are in the closed state, it is necessary to ensure a high sealing performance between the valve seat and the valve cover ; [0003] The existing method is to use a compensation mechanism, that is to say, to deform the sealing ring downward so that it can be sealed against the valve seat. During long-term use, the sealing ring will be easily damaged; [0004] To sum up, how to prolong the service life of the sealing ring and improve the sealing performance has become an urgent problem to be solved by our researchers. Contents of the invention [0005] The technical problem to be solved by the present invention is: how to prolong the servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08
CPCF16K5/0605F16K5/0689
Inventor 吴栋梅一开毕玉龙吕德华徐长海
Owner CHANGZHOU YAHONG ENVIRONMENTAL PROTECTION TECH CO LTD