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Vertical air-control balance stop valve

A globe valve, pneumatic control technology, applied in the direction of balance valve, safety valve, valve device, etc., can solve the problems of unsatisfactory performance and life, large diameter valve, not fully balanced, etc., to achieve compact structure and low manufacturing cost , the effect of small size

Active Publication Date: 2016-08-24
HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air-operated valves on the market today, the axial force of the medium on the valve core has not reached a complete balance due to the limitation of the design structure, so the volume of the valve with the same caliber is relatively large, and the performance and life are not ideal.

Method used

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  • Vertical air-control balance stop valve

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Embodiment Construction

[0012] Such as figure 1 As shown, a vertical air-controlled fully balanced globe valve includes a valve body 1, a C control port 21 is opened on the upper part of the valve body 1, and a piston 12 is installed on the inner side of the valve body 1 at the lower part of the C control port 21, and the upper middle part of the piston 12 is Install the plug 11, install the inner hexagon screw 15 on the lower side of the middle part of the piston 12, install the valve core 2 at the end of the screw rod of the inner hexagon screw 15, install the upper end of the main spring 9 on the lower periphery of the piston 12, and install the inner side of the valve body 1 on the piston 12 The lower part of the guide sleeve 6 is installed, the lower end of the main spring 9 cooperates with the upper part of the guide sleeve 6, the valve core 2 passes through the middle part of the guide sleeve 6, and the guide sleeve 6 is located on the outer periphery of the valve core 2 to set a buffer pad 7, ...

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Abstract

The invention discloses a vertical air-control balance stop valve which comprises a valve body. A C-shaped control port is formed in the upper portion of the valve body. A piston is mounted on the inner side of the valve body and located on the lower portion of the C-shaped control port. A plug is mounted on the upper side of the middle portion of the piston. A socket head cap screw is mounted on the lower side of the middle portion of the piston. A valve element is mounted at the end of the screw rod of the socket head cap screw. The vertical air-control balance stop valve has the advantages that the valve element is located in high-pressure media, the overall axial stress resultant force is zero, piston control stress area is not increased, overall size of the valve is not increased, and the service life, reliability and economy of the valve are unaffected; due to the fact that pressure at a valve element sealing part is high, a first retaining ring with one arc-shaped face is used, and the pressure bearing capacity of a fourth C-shaped ring is increased; the valve element is integrally connected with the valve body, so that the valve is compact in structure and small in size.

Description

technical field [0001] The invention relates to a cut-off valve, more precisely a vertical air-controlled full-balance cut-off valve. Background technique [0002] The vertical air-controlled full-balance globe valve is a globe valve controlled by a pressure air source, which controls the on-off of the fluid in the high-pressure system and realizes the on-off control. In the air control valves currently on the market, the cylinder part and the main valve part are connected in a split type, which is relatively large in size and requires a large installation space. The axial force of the medium on the air control valves on the market is not completely balanced due to the limitation of the design structure. Therefore, the volume of the same caliber valve is relatively large, and the performance and service life are not ideal. Contents of the invention [0003] The object of the present invention is to provide a vertical air-controlled fully balanced shut-off valve, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04
Inventor 刘宝林翟亚磊余方正王姗姗丁继杰张晓磊卓靳露李志鹏李医中韩树亮
Owner HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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