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Noise reducing butterfly valve

A butterfly valve and butterfly plate technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of excessive noise, loud noise, affecting the health of operators, etc., achieve noise reduction, reduce medium flow noise, and improve vibration conditions Effect

Inactive Publication Date: 2015-03-11
WUHAN BAINAI FLUID CONTROL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when the ordinary butterfly valve works in the range below 30% opening, the flow velocity is too high when the fluid flows through the channel of the valve body, and vortex is generated at the same time, so the noise generated is much larger than when the valve is fully opened. This situation often makes the use of this The noise in the place of the valve exceeds the standard, which affects the health of the operators

Method used

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] Such as figure 1 As shown, a noise reduction butterfly valve according to the embodiment of the present invention includes a damping column 1, a butterfly plate 2, a valve seat 3, and a valve stem 4. The damping column 1 is connected to the valve body 3, and the butterfly plate 2 is installed on the valve In the body 3, the valve stem 4 is located inside the butterfly plate 2.

[0013] Preferably, the damping column 1 is located at the inlet and outlet of the butterfly valve.

[0014] Preferably, the opening mode of the butterfly plate 2 is around the rotation direction of the valve stem.

[0015] Through the design of the special damping structure, the present invention is placed in the specific area of ​​the inlet and outlet of the butterfly valve, which can effectively reduce the medium flow velocity under the conditi...

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PUM

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Abstract

The invention discloses a noise reducing butterfly valve, which comprises a damping post, a butterfly plate, a valve seat and a valve rod, wherein the damping post is connected with the valve body, the butterfly plate is arranged in the valve body, and the valve rod is positioned inside the butterfly plate. Through the design of a special damping structure, the noise reducing butterfly valve is arranged in a specific region of an inlet and an outlet of the butterfly valve, the media flowing speed of the butterfly valve under the work condition of small opening degree can be effectively decelerated, and meanwhile, the vortex intensity is also reduced, so that the medium flowing noise is obviously reduced, the noise reduction amplitude can reach higher than 15 percent, the noise of places adopting relevant products is reduced, and the injury to operators is reduced.

Description

technical field [0001] The invention relates to the design field of a butterfly valve, in particular to a noise reduction butterfly valve. Background technique [0002] At present, when the ordinary butterfly valve works in the range below 30% opening, the flow velocity is too high when the fluid flows through the channel of the valve body, and vortex is generated at the same time, so the noise generated is much larger than when the valve is fully opened. This situation often makes the use of this The noise in the place of the valve exceeds the standard, which affects the health of the operators. Contents of the invention [0003] In view of the above problems, the present invention aims to provide a noise reduction butterfly valve. [0004] To achieve this technical purpose, the solution of the present invention is: a noise-reducing butterfly valve, including a valve body, a damping column, a butterfly plate, a valve seat, and a valve stem. The damping column is conne...

Claims

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Application Information

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IPC IPC(8): F16K1/22F16K47/02
CPCF16K1/22F16K1/32F16K47/08
Inventor 袁前灿袁轲程明刘万红
Owner WUHAN BAINAI FLUID CONTROL EQUIP CO LTD