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Air-impact protective throttle valve

A shock protection, throttle valve technology, applied in valve details, valve device, valve device for absorbing fluid energy, etc., can solve the problems of flow fluctuation, no longer change, mechanical shock, etc., to reduce the flow The effect of area, low cost and simple structure

Inactive Publication Date: 2011-08-03
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the adjustable throttle valves have a certain flow control adjustment range, but once set, the throttle area will not change during use, and the flow will fluctuate with the change of fluid pressure.
Especially, in the cylinder element, the sudden increase of air pressure is easy to produce mechanical shock, which affects the system

Method used

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Embodiment

[0019] figure 1 Among them, the airflow impact protection throttle valve of the present invention mainly includes a valve cover 2 , a valve body 5 , a throttle diaphragm 3 and a gasket 4 . The inner cavity of the valve cover 2 is in the shape of an involute valve cavity to ensure that the throttle diaphragm 3 can be fully affected by the air flow. The throttle diaphragm 3 is provided with a central hole 31, and an eccentric hole 32 is provided around the central hole 31 on the throttle diaphragm 3. In this embodiment, four eccentric holes are arranged symmetrically. A throttle diaphragm 3 and an annular gasket 4 are arranged between the valve cover 2 and the valve body 5, and the gap fit between the throttle diaphragm 3, the valve cover 2 and the valve body 5 makes it easier for the throttle diaphragm 3 to out of shape. The gasket 4 is pressed against the outer edge portion between the valve cover 2 and the valve body 5, and the valve cover 2 and the valve body 5 are fixedl...

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PUM

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Abstract

The invention discloses an air-impact protective throttle valve, which comprises a valve cover, a valve body, a throttle membrane and a gasket, wherein the inner cavity of the valve cover is in a gradually-opening valve chamber shape, and the throttle membrane is provided with a centre hole and several eccentric holes; the throttle membrane and the annular gasket are arranged between the valve cover and the valve body, the throttle membrane is in clearance fit with the valve cover and the valve body, and the gasket is compacted and arranged on the periphery part between the valve cover and the valve body; a joint face, matched with the throttle membrane, at the upper end of the valve body is set to be a concave surface; and the valve cover is provided with an air inlet, and the valve bodyis provided with an air outlet. The air-impact protective throttle valve can automatically reduce the flow area when impacted by burst airflows. The invention has the advantages of simple structure, low cost, good throttle effect and wide application.

Description

technical field [0001] The invention belongs to the field of control components in a fluid conveying system, and in particular relates to an airflow impact protection throttle valve. Background technique [0002] In the pneumatic system, the throttle valve is a commonly used control element. The cross-sectional area of ​​the passage is changed by the unsealed part to adjust the flow and pressure, and the structure is also complicated. Most of the adjustable throttle valves have a certain flow control adjustment range, but once set, the throttle area will not change during use, and the flow will fluctuate with the change of fluid pressure. Especially, in the cylinder element, the sudden increase of air pressure is easy to produce mechanical impact, which will affect the system. Contents of the invention [0003] The object of the present invention is to provide an airflow impact protection throttle valve, which can not only control the pressure fluctuation caused by the su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K47/14
Inventor 王飞宿林扬徐勇巫宗萍
Owner GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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