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Low-sound throttle cut-off vent valve

A vent valve and bass technology, applied in the field of bass throttle cut-off vent valve, can solve the problems of noise pollution, physical injury of workers, loud valve noise, etc., and achieve the effect of weakening the diffusion of noise, stable operation and small thermal conductivity

Inactive Publication Date: 2019-06-18
宋书中
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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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  • Low-sound throttle cut-off vent valve
  • Low-sound throttle cut-off vent valve
  • Low-sound throttle cut-off vent valve

Examples

Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, a bass 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 valve sleeve 4 coaxial with the valve stem 5, and the valve The lower circumference of the sleeve 4 is provided with at least one set of throttling grooves 9 of different lengths; the bottoms of the throttling grooves 9 are on the same axis, and each throttling groove 9 is periodically symmetrically distributed; the inlet section and outlet of the valve body 1 A sound-absorbing layer 6 is also arranged on the outer circumference of the segment, and the sound-absorbing layer 6 is filled with slag wool. A movably connected valve disc 3 is arranged inside the valve sleeve 4, and a slag scraping edge is provided on the lower outer circumference o...

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PUM

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Abstract

The invention discloses a low-sound throttle cut-off vent valve, and belongs to the field of valves. The low-sound throttle cut-off vent valve comprises a valve body, a valve stem, a bracket and a valve cover, the valve body is internally provided with a valve sleeve on the same axis as the valve stem, and at least one set of throttle grooves with different lengths is formed in the lower circumference of the valve sleeve. The bottoms of the throttle grooves are on the same axis, and the throttle grooves are periodically and symmetrically distributed. Sound absorbing layers are further arrangedon the outer circumference of the inlet section and the outlet section of the valve body, and the sound absorbing layers are filled with slag wool. The low-sound throttle cut-off vent valve effectively solves the noise problem of throttle cut-off vent valves.

Description

technical field [0001] The invention relates to the field of valves, in particular to a bass throttle cut-off venting valve. Background technique [0002] Throttle cut-off vent valve is a double-seal valve, which is mainly used in the transmission pipelines of oil, natural gas, coal gas, liquefied oil and gas, etc., and is usually used for regulating control or cutting off. This type of valve is a new throttling, cut-off, and venting product, with multi-stage throttling effects, obvious throttling effects, reliable sealing, and convenient operation and maintenance. [0003] Great progress has been made in the existing throttling cut-off and venting valves in terms of throttling, cutting off, setting of balance holes to reduce operating torque, combined sealing and the like. However, there are still outstanding problems in the application of actual working conditions: in a high-pressure or medium-pressure environment, the noise of the valve is abnormally loud, and noise is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/24F16K3/314F16K27/04F16K47/02F16K47/08
Inventor 宋书中
Owner 宋书中
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