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Five-dimensional eccentric valve sealing structure

A valve sealing and eccentric technology, applied in the direction of lift valve, valve device, cock including cut-off device, etc., can solve the problems of large opening and closing torque, high pressure, poor sealing performance, etc. Long service life and good sealing performance

Pending Publication Date: 2018-12-07
谢文学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing butterfly plates or ball valves have serious wear, high pressure, poor sealing performance, large opening and closing torque, and short service life

Method used

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  • Five-dimensional eccentric valve sealing structure
  • Five-dimensional eccentric valve sealing structure
  • Five-dimensional eccentric valve sealing structure

Examples

Experimental program
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Embodiment Construction

[0014] A five-dimensional eccentric valve sealing structure, including a valve body 1, a valve stem 2 and an opening and closing member 3, the opening and closing member 3 is located in the valve body 1, the valve stem 2 is connected to the opening and closing member 3, and the opening and closing member 3 One side of the closing part 3 is provided with an annular step, and a sealing ring 4 is installed on the annular step, and the sealing ring 4 is fixed on the opening and closing part 3 through the pressure ring 5, and the valve body 1 is provided with a valve seat 6, The valve seat 6 and the sealing ring 4 are closed to form a sealing surface, the sealing surface is an oblique elliptical cone perfect circle sealing surface, the sealing surface is an arc-shaped sealing surface, and the sealing surface is a 7 A part of the oblique oblique ellipse cone, the plane where the apex 8 of the oblique ellipse cone and the short axis of the ellipse bottom surface are co-located is copl...

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Abstract

The invention relates to a five-dimensional eccentric valve sealing structure which comprises a valve body, a valve rod and an open-close part. The open-close part is located in the valve body, the valve rod is connected with the open-close part, the open-close part is provided with a sealing ring, a valve base is arranged in the valve body, the valve base and the sealing ring are close to form asealed face which is an arc sealed face, the center line of a valve rod shaft and the center line of a valve flow way are eccentric, the top point of an inclined oval cone body and the center line ofthe valve flow way are eccentric, the radial section of the obliquely-cut oval cone body perfect circle sealed face is a perfect circle section, the circle center of the perfect circle section and thecenter line of the valve flow way are eccentric, the circle center of the perfect circle section is in the cone body center line of the inclined oval cone body, and an intersection line between the plane where the top point of the inclined oval cone body and the short axis of the bottom face of the oval are located and the arc sealed face is a sealed arc line. The structure is simple, five-dimensional eccentricity is adopted, each radial section of the sealed face is the perfect circle section, the open-close torque can be reduced, sealing performance is good, and the valve service life is prolonged.

Description

technical field [0001] The invention relates to a valve, in particular to a five-dimensional eccentric valve sealing structure. Background technique [0002] Ball valve and butterfly valve are the two most widely used valves in today's valves. They are simple and easy to operate, and they can cut off and cut off the pipeline medium. Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids, among which the hard-sealed V-shaped ball valve has a strong shear force between its V-shaped ball core and the metal valve seat of surfacing welding carbide, and is especially suitable for fibers and tiny solid particles. etc. medium. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium on the pipeline, but also close any channel and connect the other two channels. This type of valve should...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/226F16K1/36F16K1/42F16K5/06F16K5/08
CPCF16K1/2261F16K1/36F16K1/42F16K5/0605F16K5/0684F16K1/222
Inventor 谢文学
Owner 谢文学
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