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Butterfly valve and high-performance valve seat of chemical butterfly valve

A chemical and high-performance technology, applied in the direction of lift valves, valve devices, engine components, etc., can solve the problems of poor sealing reliability and short service life, and achieve reliable sealing, long service life and small friction coefficient

Inactive Publication Date: 2020-02-07
上海沪东造船阀门有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current butterfly valve seat has the defects of poor sealing reliability and short service life

Method used

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  • Butterfly valve and high-performance valve seat of chemical butterfly valve
  • Butterfly valve and high-performance valve seat of chemical butterfly valve
  • Butterfly valve and high-performance valve seat of chemical butterfly valve

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Embodiment Construction

[0018] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, and are not intended to limit the protection scope of the present invention.

[0019] like Figure 1-Figure 4 As shown, the present invention provides a high-performance valve seat 11 of a chemical butterfly valve, and a butterfly valve 1 comprising the valve seat 11. The valve seat 11 includes: a composite sealing system formed by sintering polytetrafluoroethylene and glass beads twenty one.

[0020] The composite sealing system 21 includes an anti-pull-out area 31, a sealing and fixing area 32, an elastic deformation area 33, a deflection deformation area 34, and an energized sealing area 35 in contact with the valve plate 14, which are sequentially connected from top to bottom; The anti-pull-out area 31, sealing and fixing area 32, elastic deformation area 33, flexural d...

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Abstract

The invention discloses a butterfly valve and a high-performance valve seat of the chemical butterfly valve. The valve seat comprises a composite sealing system formed by sintering polytetrafluoroethylene and glass beads. The composite sealing system comprises an anti-pullout area, a sealing fixed area, an elastic deformation area, a deflection deformation area and an energy increase sealing area,all of which are connected in sequence from top to bottom, and the energy increase sealing area is in contact with a valve plate. An elastic energy increase element is arranged in the energy increasesealing area. The composite sealing system is designed to be in a special shape and of a sealing structure; the five independent areas, the anti-pullout area, the sealing fixed area, the elastic deformation area, the deflection deformation area and the energy increase sealing area, are arranged and cooperate one another to complete different functions, and the life cycle of one hundred and more times is achieved; and sealing with the valve plate is achieved through medium pressure sealing and deflection deformation of the deflection deformation area, sealing is induced and stimulated throughthe valve plate and medium pressure, and low torque and zero leakage are achieved. Self-adaptive capacity to temperature changes and self adjusting capacity to wear are achieved, and the ultralong service life is achieved.

Description

technical field [0001] The invention relates to the field of chemical butterfly valves, in particular to a butterfly valve and a high-performance valve seat of the chemical butterfly valve. Background technique [0002] Butterfly valves are used in various industries to control the flow of fluids. Butterfly valves are often used in situations where the flow through the valve must be regulated. The valve seat is an important component of the valve sealing pair, which is related to the leakage of the valve. The current butterfly valve seat has the defects of poor sealing reliability and short service life. Contents of the invention [0003] The object of the present invention is to provide a butterfly valve and its chemical butterfly valve high-performance valve seat, so as to solve the above-mentioned problems in the prior art. [0004] In order to achieve the above object, the present invention provides a high-performance valve seat for a chemical butterfly valve, which...

Claims

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Application Information

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IPC IPC(8): F16K1/226F16K1/42
CPCF16K1/2263F16K1/42
Inventor 翁武秀金宁范成裕钱海峰狄九旺俞垚徐勇德夏明
Owner 上海沪东造船阀门有限公司
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