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Low-noise throttling cut-off emptying valve

A venting valve and low-noise technology, applied in the field of low-noise throttling cut-off venting valve, can solve problems such as high noise, and achieve the effect of reducing noise, reducing vibration, and avoiding unstable pressure difference

Inactive Publication Date: 2015-03-11
ZIGONG ZIGAO VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a low-noise throttling cut-off vent valve to solve the problem of high noise

Method used

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  • Low-noise throttling cut-off emptying valve
  • Low-noise throttling cut-off emptying valve
  • Low-noise throttling cut-off emptying valve

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Embodiment Construction

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

[0019] Such as figure 1 As shown, a low-noise throttling cut-off and venting valve includes a valve body 1, a valve stem 5, a bracket, and a valve cover. Sleeve 4 and sleeve 6; the valve sleeve 4 is cylindrical, installed vertically on the same axis as the valve stem 5, and the lower circumference of the valve sleeve 4 is provided with at least one set of throttling grooves 9 of different lengths; The bottoms of the flow grooves 9 are on the same axis, and the throttling grooves 9 are distributed periodically and symmetrically; the sleeve 6 is screwed into the inlet channel of the valve body, and the inside of the sleeve 6 is wave-shaped. The valve disc assembly includes a valve disc 3 , a valve seat 2 , a pressure ring 7 and a soft sealing ring 8 , and the valve disc 3 is movably connected and installed in a valve sleeve 4 . At least two ann...

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Abstract

The invention discloses a low-noise throttling cut-off emptying valve and belongs to the field of valves. The low-noise throttling cut-off emptying valve comprises a low-noise throttling cut-off emptying valve body, a valve stem, a bracket and a valve cover, wherein the valve body is internally provided with a denoising component and a valve clack component; the denoising component comprises a valve bush and a sleeve; the valve bush is cylindrical and is vertically arranged on the same axis together with the valve stem; the periphery of the lower part of the valve bush is provided with at least one group of throttling grooves which are different in length; the bottoms of the throttling grooves are positioned on the same axis and the throttling grooves are in periodic symmetrical distribution; the sleeve is in threaded connection with the interior of an inlet passage of the valve body, and the interior of the sleeve is wave-shaped. The low-noise throttling cut-off emptying valve can be used for effectively solving the throttling cut-off emptying valve noise problem.

Description

technical field [0001] The invention relates to the field of valves, in particular to a low-noise throttling stop-vent 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 ...

Claims

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Application Information

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IPC IPC(8): F16K1/02F16K1/52F16K1/36F16K47/02
CPCF16K1/02F16K1/32F16K1/36F16K1/52F16K47/02
Inventor 刘健
Owner ZIGONG ZIGAO VALVE