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Silent throttling stop air release valve

A venting valve and silent technology, applied in the direction of valve lift, valve details, valve device, etc., can solve the problems of noise pollution, physical injury of workers, loud valve noise, etc., to reduce medium flow rate, stable operation, and reduce differential pressure vibration Effect

Inactive Publication Date: 2015-02-25
ZIGONG ZIGAO VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still outstanding problems in the application of actual working conditions: in the high-pressure or medium-pressure environment, the noise of the valve is abnormally loud, and noise is also a kind of pollution. Working in a noisy environment for a long time will cause damage to the body of workers

Method used

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  • Silent throttling stop air release valve
  • Silent throttling stop air release valve

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0019] Such as figure 1 As shown, a mute throttle cut-off vent valve includes a valve body 1, a valve stem 5, a bracket, and a valve cover. It is characterized in that: the valve body 1 is provided with a noise reduction component and a disc component, and the noise reduction component includes a valve sleeve 4. The baffle plate 6; the valve sleeve 4 is cylindrical and is installed vertically on the same axis as the valve stem. The lower circumference of the valve sleeve 4 is provided with at least one set of throttle grooves 9 of different lengths; the throttle The bottoms of the grooves 9 are on the same axis, and the throttle grooves 9 are periodically symmetrically distributed; the baffle plate 6 is vertically arranged in the inlet channel of the valve body, and the baffle plate 6 is a hollow ring shape with an opening on the circumference. There are asymm...

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Abstract

The invention discloses a silent throttling stop air release valve, and belongs to the field of valves. The silent throttling stop air release valve comprises a valve body, a valve rod, a support and a valve deck. A denoising assembly and a valve clack assembly are arranged in the valve body. The denoising assembly comprises a valve sleeve and a plate baffle. The valve sleeve is cylindrical and is vertically installed on the same axis as the valve rod. At least one set of throttling grooves of different lengths are formed in the circumference of the lower portion of the valve sleeve. The bottoms of the throttling grooves are located on the same axis. The throttling grooves are distributed in a symmetric periodic mode. The plate baffle is vertically arranged in an inlet passageway of the valve body. The plate baffle is in a hollow annular shape. Asymmetrical throttling holes are formed in the circumferential surface of the plate baffle. By means of the silent throttling stop air release valve, the problem that noise is produced by an existing throttling stop air release valve is effectively solved.

Description

Technical field [0001] The invention relates to the field of valves, in particular to a silent throttling cut-off vent valve. Background technique [0002] Throttle cut-off vent valve is a double-sealed valve, which is mainly used in oil, natural gas, coal gas, liquefied oil and gas transportation pipelines, and is usually used for regulating control or cutting off. This kind of valve is a new type of throttling, shut-off and venting product, with multi-stage throttling effect, obvious throttling effect, reliable sealing, convenient operation and maintenance, etc. [0003] The existing throttling, cut-off and venting valves have made great progress in terms of valve throttling, cut-off, balance hole setting, reducing operating torque, and combined sealing. However, there are still outstanding problems in actual working conditions: in the high pressure or medium pressure environment, the noise of the valve is abnormally loud, and the noise is also a kind of pollution, and working i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K47/02F16K47/08F16K1/36
CPCF16K47/02F16K1/36F16K47/08
Inventor 刘健
Owner ZIGONG ZIGAO VALVE
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