Leak-proof valve

A technology of anti-leakage and valves, which is applied in the direction of valve lifts, valve details, valve devices, etc., can solve problems such as environmental pollution, material loss, and accidents, and achieve the effects of prolonging service life, strengthening strength, and enhancing sealing reliability

Inactive Publication Date: 2015-09-02
YANGZHONG FIRST BUTTERFLY VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some special fields, such as: leakage in chemical plants and nuclear power plants, leakage will cause material loss, pollute the environment, and even cause accidents in severe cases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] like figure 1 As shown, a leak-proof valve includes: valve body 1, valve cover 2, valve stem 3, valve disc 4, valve seat 5, wedge ring 6, O-ring 9, the lower part of the valve cover 2 is inserted into the valve body 1 top, the side wall of the valve body 1 is provided with a first groove and an O-ring groove, the side wall of the valve cover 2 corresponding to the first groove is provided with a slope groove, and the wedge ring 6 The inclined plane end is snapped into the inclined plane groove, and the right angle end of the wedge ring 6 is snapped into the first groove; an O-ring 9 is arranged in the O-ring groove.

[0019] like image 3 , Figure 4 As shown, it also includes: filler 7, bellows 8, a filler groove is provided on the side wall of the valve stem insertion place of the valve cover 2, and a filler 7 is arranged in the filler groove; the lower par...

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PUM

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Abstract

The invention discloses a leak-proof valve which comprises a valve body, a valve cover, a valve rod, a valve clack, a valve base, a wedge ring and an O-shaped ring, wherein the lower portion of the valve cover is inserted into the top of the valve body; a first groove and an O-ring groove are formed in the side wall of the valve body; a bevel groove is formed in the side wall of the valve cover at the corresponding position of the first groove, the bevel end of the wedge ring is connected into the bevel groove in a clamped way, and the right-angle end of the wedge ring is connected into the first groove in a clamped way; the O-shaped ring is arranged in the O-ring groove. The leak-proof valve has the effects of effectively improving a sealing structure, strengthening the sealing reliability through multi-level sealing and prolonging the service life.

Description

technical field [0001] The invention relates to an anti-leakage valve, which belongs to the technical field of valve structure design. Background technique [0002] Valve is an important fluid control equipment in industry, which involves many sectors of the national economy and is an important basic equipment for the development of the national economy. At present, the application fields of valves are becoming more and more extensive, the caliber of valves is increasing, and the pressure requirements are also increasing. Leakage of the valve refers to: the medium leaks from the inside of the valve to the outside of the valve. In some special fields, such as: leakage in chemical plants and nuclear power plants, leakage will cause material loss, pollute the environment, and even cause accidents in severe cases. For the explosive, toxic or perhaps radioactive medium, leakage is not allowed. So valves must have a reliable sealing performance. [0003] The leakage of the valv...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F16K27/12F16K1/32
CPCF16K27/12F16K1/32
Inventor许瑞华
OwnerYANGZHONG FIRST BUTTERFLY VALVE FACTORY