Pilot-operated type breather valve structure and working method

A breathing valve and pilot-operated technology, applied in the direction of control valves, safety valves, balance valves, etc., can solve problems such as gas leakage and response speed block, and achieve the effects of fast response speed, simple structure and high control precision

Active Publication Date: 2021-04-16
CHINA UNIV OF MINING & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned technologies, a simple structure is provided, which is easy to use and can solve the problem of a small amount of gas leakage when the pressure in the breathing valve has not reached the opening pressure. The breathing valve responds quickly and has high control accuracy. The structure and working method of the pilot-operated breathing valve that can close the valve disc in time without being affected by the hydraulic force when the valve disc of the breathing valve is lowered

Method used

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  • Pilot-operated type breather valve structure and working method
  • Pilot-operated type breather valve structure and working method
  • Pilot-operated type breather valve structure and working method

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Embodiment Construction

[0045]Embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0046]Such asfigure 1 ,Figure 11 ,Figure 14 withFigure 15As shown, the pilot respiratory valve structure of the present invention includes a valve body 2, and the left opening of the valve body 2 is provided with a ply valve pilot valve body 10, and the right opening taking the valve pilot valve body 20, further comprising a fountain spring. Advanced linkage mechanism and suction valve spring accumulation link mechanism;

[0047]Such asFigure 4 As shown, the valve body 2 includes a fountain valve body 12 and a valve valve body 28, the fountain valve body 12 and the suction valve body 28 are connected by the connecting pipe 17 and the tube valve body 12 and the suction valve body 28 respectively passed The welding is connected to the connecting conduit 17; the tubular valve body 12 and the suction valve body 28 are two upper and lower open tubular structures, and the tw...

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Abstract

The invention relates to a pilot-operated type breather valve structure and a working method. The pilot-operated type breather valve structure and the working method are suitable for automatically balancing the pressure in a tank. The pilot-operated type breather valve structure comprises a valve body, a left opening of the valve body is provided with an exhalation valve pilot-operated type valve body and a right opening of the valve body is provided with a suction valve pilot-operated type valve body, and further comprises an exhalation valve spring energy storage connecting rod mechanism and a suction valve spring energy storage connecting rod mechanism, and the effect of the safety valve can be achieved only through the exhalation process by installing a one-way switch in the valve body. The pilot-operated type breather valve structure is simple in structure, high in control precision and high in response speed, and solves the problems that when the pressure in the breather valve does not reach the opening pressure, a small amount of gas leaks frequently, the breather valve is low in response speed and low in control precision, and particularly when a breather valve rod assembly descends, due to the action of hydraulic force, the problem that a valve disc cannot be closed in time is solved.

Description

Technical field[0001]The present invention designs a pilot respiratory valve structure and a working method, especially for a pilot respiratory valve structure and a working method for pressure in automatic balancing tank.Background technique[0002]The respiratory valve is installed on the transport storage tank and is an indispensable safety device for fixing the storage tank not only reduces gas emissions in the tank, but also reduces pollution to the atmosphere, but also causes the tank to avoid damage due to overpressure or Due to ultra vacuum, there is a certain promotion of security and environmental protection. Most of the breathing valves currently used are gravity respiratory valves, determine the opening pressure of the breathing valve by using the weight of the counter block. The problem of the gravity respiratory valve is mainly: the sealing property of the sealing surface of the respiratory valve disc is not very good. When the pressure in the gravity respiratory valve h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/196F16K17/194F16K15/18
Inventor 刘秀梅李贝贝任护森李伟贺杰马朝欣刘利利彭佳佳
Owner CHINA UNIV OF MINING & TECH
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