Impact-resistance vacuum interface valve

An impact-resistant and vacuum technology, applied in valve details, diaphragm valves, valve devices, etc., can solve the problems of fatigue damage of piston diaphragm, impact of piston diaphragm, corresponding speed, tightness and reliability are not ideal, etc. The effect of prolonging service life and improving reliability

Pending Publication Date: 2019-10-11
ZHEJIANG RADIO & TV UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently, in the field of drainage, a stepped spool or a tapered spool slides in the valve body to realize the opening or closing of the fluid, but in the field of vacuum sewage, conventional The valve core and valve body do not have ideal effects in terms of corresponding speed, sealing and reliability. Under this background, people have developed a vacuum interface valve with high response speed, high throughput and high sealing. advantage
[0003] However, in the vacuum interface valve in the prior art, due to the fast switching speed between vacuum and standard atmospheric pressure in the vacuum chamber, the piston diaphragm in the interface valve will be subjected to strong impact when it is opened and closed, which is very easy to cause fatigue damage to the piston diaphragm , reducing the reliability of the interface valve

Method used

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  • Impact-resistance vacuum interface valve

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Embodiment Construction

[0018] refer to figure 1 , a shock-resistant vacuum interface valve of the present invention, comprising a valve body 1 and a piston diaphragm 2 located in the valve body, the valve body is provided with a first outlet 101 and a first inlet 102, characterized in that: the piston diaphragm The opening at the upper end is in sealing connection with the top wall of the valve body, forming an airtight damping chamber 8; the vacuum interface valve also includes a damping system 3 and a vacuum drive system 4; the damping system includes a damping fluid for The damping fluid chamber 301 storing the damping fluid and the first one-way valve 302 and the second one-way valve 303 used to control the flow direction of the damping fluid; the vacuum driving system is provided with a driving diaphragm 401, and the driving diaphragm and the piston The diaphragm is fixedly connected through the connecting rod 6; the damping chamber is filled with the damping liquid, and when the piston diaphra...

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Abstract

The invention discloses an impact-resistance vacuum interface valve. The valve comprises a valve body and a piston diaphragm arranged in the valve body, a first inlet and a first outlet are formed inthe valve body, and the valve is characterized in that the piston diaphragm forms a damping cavity. The vacuum interface valve further comprises a damping system and a vacuum driving system, the damping system comprises damping liquid, a damping liquid chamber, a first one-way valve and a second one-way valve, a driving diaphragm is arranged in the vacuum driving system, the driving diaphragm is fixedly connected with the piston diaphragm through a connecting rod, the damping cavity is filled with the damping liquid, the piston diaphragm in the vacuum interface valve has the impact resistance,the service life of the piston diaphragm can be prolonged, and the reliability of the interface valve can be prolonged.

Description

【Technical field】 [0001] The invention relates to the technical field of valves, in particular to an impact-resistant interface valve. 【Background technique】 [0002] Now in the field of drainage, the stepped spool or tapered spool slides in the valve body to realize the opening or closing of the fluid. In this context, people have developed a vacuum interface valve, which has the advantages of high response speed, high throughput and high sealing. [0003] However, in the vacuum interface valve in the prior art, due to the fast switching speed between vacuum and standard atmospheric pressure in the vacuum chamber, the piston diaphragm in the interface valve will be subjected to strong impact when it is opened and closed, which is very easy to cause fatigue damage to the piston diaphragm , reducing the reliability of the interface valve. [0004] Therefore, there is an urgent need to develop a shock-resistant vacuum interface valve. 【Content of invention】 [0005] The p...

Claims

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Application Information

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IPC IPC(8): F16K7/17F16K31/126F16K47/02F16K51/02
CPCF16K7/17F16K31/1262F16K47/02F16K51/02
Inventor 潘国军
Owner ZHEJIANG RADIO & TV UNIV
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