low noise control valve

A control valve, low-noise technology, applied in valve details, valve device, valve device for absorbing fluid energy, etc., can solve the problems of component or system damage and fracture, auditory fatigue of production personnel, poor working comfort, etc., to achieve attenuation of fluid Fluctuating pressure, compact structure, good reliability

Active Publication Date: 2016-03-09
中国船舶重工集团公司第七〇二研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary control valves often produce large noises in actual work. On the one hand, the fluid-activated valve body and its downstream pipelines cause air noise in the working environment, and production personnel are prone to auditory fatigue and poor working comfort; on the other hand, fluid-activated valves Body wet parts and downstream pipelines may cause damage to parts or systems, especially in chemical and nuclear industries where safety and reliability requirements are high

Method used

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Examples

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Embodiment Construction

[0030] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0031] Such as figure 1 and figure 2 As shown, the low-noise control valve of this embodiment includes a valve body 5, the valve plug 3 is installed in the middle of the valve body 5 through the upper valve seat 4, and the valve cover 2 is installed on the top of the valve plug 3, which is located in the middle of the valve cover 2 and the valve plug 3 The valve stem 1 is installed at the opening; the upper part of the elastic airbag cavity 7 is clamped in the valve plug 3, and the lower part of the elastic airbag cavity 7 is installed in the inflow guide device 9, which is connected to the valve plug 3 through bolts 11, A valve sleeve 8 is installed on the outer end of the inflow diversion device 9, and the valve sleeve 8 is installed on the lower valve seat 6; a sandwich outlet rectification device 10 is welded on the outlet pipe wall ...

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PUM

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Abstract

The invention relates to a low noise control valve. The low noise control valve comprises a valve body, wherein a valve plug is mounted in the middle of the valve body by an upper valve seat; a valve cover is mounted on the top of the valve plug; a valve rod is mounted in the middle hole positions of the valve cover and the valve plug; the upper part of an elastic air bag cavity is clamped in the valve plug; the lower part of the elastic air bag cavity is mounted in an inflow flow guide device; the inflow flow guide device is connected with the valve plug by a bolt; a valve sleeve is mounted on the outer end of the inflow flow guide device; the valve sleeve is mounted on a lower valve seat; a sandwich outflow rectifying device is welded on the wall of a valve body outflow pipe. The low noise control valve has the advantages that the structure is compact and reasonable, the installation is convenient, the use reliability is good, the occurrence of cavitation is inhibited, and the pulsating pressure of fluid is attenuated.

Description

technical field [0001] The invention relates to the technical field of valve control, in particular to a low-noise control valve that rectifies non-uniform flow field and eliminates fluid pulsation pressure. Background technique [0002] Control valves are widely used in various fluid transportation pipelines in industrial applications to regulate flow and pressure. Ordinary control valves often produce large noises in actual work. On the one hand, the fluid-activated valve body and its downstream pipelines cause air noise in the working environment, and production personnel are prone to auditory fatigue and poor working comfort; on the other hand, fluid-activated valves Body wet parts and downstream pipelines may cause damage to parts or systems, especially in chemical and nuclear industries with high safety and reliability requirements. [0003] Cavitation and turbulent pressure pulsations are the main sources of noise generation in control valves. Under different openin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K47/02F16K47/08
CPCF16K47/023F16K47/08
Inventor 何涛王锁泉孙玉东郝夏影王秋波刘恺
Owner 中国船舶重工集团公司第七〇二研究所
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