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Sleeve regulating valve of asymmetrical throttling windows

A technology of sleeve regulating valve and throttling window, which is applied in valve details, valve device, valve device for absorbing fluid energy, etc. Vibration reduction, obvious effect

Active Publication Date: 2012-03-28
WUZHONG INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of regulating valve is prone to vibration during use, and the valve stem is often broken due to vibration. In some working conditions, it may even cause resonance of the entire pipeline, which is very harmful.

Method used

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  • Sleeve regulating valve of asymmetrical throttling windows
  • Sleeve regulating valve of asymmetrical throttling windows
  • Sleeve regulating valve of asymmetrical throttling windows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Such as figure 1 As shown, four throttling windows with the same shape and area are evenly distributed in the circumferential direction of the sleeve, among which (from the left) the first and third ones are one group, and the second and fourth ones are another group. The medium enters from one throttling window in a group and flows out from the other throttling window.

[0011] Such as figure 2 As shown, the technical solution of the present invention is to adjust a group consisting of the 4th and 2nd throttle windows (i.e. inlet throttle window 2 and outlet throttle window 1), widen the second throttle window, The fourth throttling window is narrowed, and at the same time, the widened and increased window area is the same as the narrowed and reduced window area, which not only keeps the total window area of ​​the group unchanged, but is different from the first and third throttling windows. The total window area of ​​a group of normal throttling windows composed of...

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PUM

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Abstract

The invention relates to a sleeve regulating valve of asymmetrical throttling windows, which comprises a sleeve, wherein throttling windows are formed on the sleeve. The sleeve regulating valve provided by the invention is characterized in that a group of throttling windows which are symmetrical along the axis of the sleeve comprise inlet throttling windows (2) and outlet throttling windows (1); the windowing area of the inlet throttling windows (2) is 60-70% of a single normal throttling window; the windowing area of the outlet throttling windows (1) is 130-140% of the single normal throttling window; and the total windowing area of the group of the throttling windows is the same as the windowing area of a group of normal throttling windows. The sleeve regulating valve provided by the invention has obvious weakening effect of vibration after being optimized, can effectively avoid fluid instability caused by the inner structure problem and improve the fluid state, thereby solving the problem of easy vibration of the sleeve regulating valve.

Description

technical field [0001] The invention relates to an asymmetric throttling window sleeve regulating valve. Background technique [0002] The throttling windows of the existing pre-opening sleeve regulating valves are designed to be symmetrically distributed, and the number is an even number. The windows arranged on the sleeve are not only used for fluid circulation, the design of windows with different shapes can meet the control requirements of different types of flow characteristics. This type of regulating valve is prone to vibration during use, and the valve stem is often broken due to vibration. In some working conditions, it may even cause resonance of the entire pipeline, which is very harmful. Contents of the invention [0003] The object of the present invention is to provide an asymmetric throttling window sleeve regulating valve capable of relatively balancing fluid energy, thereby effectively improving the vibration phenomenon of the sleeve regulating valve. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K47/08
Inventor 马玉山高强石月娟伍海
Owner WUZHONG INSTR
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