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Valve body suitable for eccentric rotary regulating valve

An eccentric rotation, valve body technology, applied in valve details, valve device, valve shell structure, etc., can solve the problem of no breakthrough in transmission torque and flow capacity, and achieve the effect of a large number of teeth, reliable sealing, and increased stiffness

Inactive Publication Date: 2013-03-27
郑明誉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has high sealing performance, there is no breakthrough in centering accuracy, transmission torque and flow capacity

Method used

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  • Valve body suitable for eccentric rotary regulating valve

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Embodiment Construction

[0012] The embodiments of the present invention will be further described in detail below in conjunction with the description of the drawings and specific embodiments.

[0013] A valve body 1 suitable for a pneumatic eccentric rotary valve, the valve body 1 is provided with a valve core 2 and a valve seat 3 adjacent to the valve core 2; the valve body 1 is approximately cylindrical, and the center of the spherical surface of the valve core 2 is aligned An eccentric distance is designed between the rotation centers, and the running track is a cam-shaped curve. The valve core 2 is provided with a kneading arm 5 and a spline 4 connected with the kneading arm 5; the kneading arm 5 is an elastic kneading arm, and the spline 4 is preferably an involute spline. As a preference, the inner channel of the valve body 1 is a straight-through channel.

[0014] The operation process of the valve body suitable for pneumatic eccentric rotary valve is: when the valve core 2 is driven by the v...

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PUM

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Abstract

The invention discloses a valve body suitable for an eccentric rotary regulating valve. The valve body comprises a valve core and a valve seat adjacent to the valve core; the valve core is internally provided with a kneading arm and a spline linked with the kneading arm; the kneading arm is an elastic kneading arm; the spherical surface of the valve core is tightly combined with the valve seat so as to achieve the reliable seal property; and an involute spline is preferably selected as the spline, has multiple spline teeth, is thick in tooth end and root part, is high in bearing capability, can be centered automatically and easily, and is high in installation accuracy. As the preference, the internal channel of the valve body is a straight-through-type channel, so that the circulation capability is intensified.

Description

technical field [0001] The invention relates to a valve body of a pneumatic eccentric rotary valve which can be widely used in petroleum, chemical industry, metallurgy and other industrial productions to cut off or regulate the flow of oil liquid, gas, natural gas and other media. Background technique [0002] In the fluid system, the valve body is a device that can effectively withstand the medium pressure after being sealed by the valve core, valve seat and sealing ring, so as to control the direction, pressure and flow of the fluid. At present, the valve body of the eccentric rotary regulating valve in the prior art is approximately a cylindrical shape, and an eccentric distance is designed between the center of the spherical surface of the valve core and the rotation center of the valve shaft. When the valve shaft drives the valve core to rotate, the spherical surface of the valve core With eccentric rotation relative to the center of the valve body, the flexible arm of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/14F16K27/06
Inventor 郑明誉
Owner 郑明誉
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