Valve plate assembly of center line-type butterfly valve and center line-type butterfly valve

A butterfly valve valve and plate assembly technology, which is applied in the direction of lifting valve, valve details, valve device, etc., can solve the problems of rubber liner damage, flange connection valve weight, etc., to achieve convenient maintenance, reduce maintenance costs, and prolong service life The effect of longevity

Pending Publication Date: 2019-11-22
TIANJIN GALAXY VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the heavy weight of the flange connection valve, the lining layer is often damaged when it is handled after vulcanization

Method used

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  • Valve plate assembly of center line-type butterfly valve and center line-type butterfly valve
  • Valve plate assembly of center line-type butterfly valve and center line-type butterfly valve
  • Valve plate assembly of center line-type butterfly valve and center line-type butterfly valve

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and related drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] see Figure 1 to Figure 9 , a centerline butterfly valve plate assembly, including a valve plate and a sealing member, the center of the valve plate is provided with a through valve shaft installation sleeve 1, the valve shaft installation sleeve is a disc-shaped valve plate main body 2 centered, the valve plate main body The thickness of the valve shaft mounting sleeve gradually decreases outwards from the outer circumference of the valve shaft installation sleeve, and also includes a sealing member mounting seat 3 located at the outer circumference of the valve plate main body; the thickness of...

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Abstract

The invention discloses a valve plate assembly of a center line-type butterfly valve, and belongs to the technical field of valves. The valve plate assembly comprises a valve plate, a sealing component and a sealing component mounting seat positioned on the outer circumference of a valve plate main body, wherein annular seal grooves are formed in the upper end face and the lower end face of a valve shaft mounting sleeve respectively; a main seal groove communicated with the annular seal grooves is formed in the central position of the outer circumference surface of the ring type sealing component mounting seat; sealing components are mounted inside the annular seal grooves and the main seal groove in a sleeving mode; and each sealing component comprises an upper end shaft hole seal ring and a lower end shaft hole seal ring which are of an integral structure and symmetrically arranged arc-shaped main seal strips for connecting the upper end shaft hole seal ring and the lower end shaft hole seal ring. The invention relates to the center line-type butterfly valve with the valve plate assembly. The seal structure of the center line-type butterfly valve is improved, the ring type sealing components are mounted inside the valve plate with grooves, the valve plate assembly is convenient to mount and convenient to change and maintain, and simultaneously, the sealing clearance between the valve plate and a valve body is reduced, so that the sealing performance of the valve is improved, the torque of the valve is reduced, and the service life of the butterfly valve is prolonged.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a centerline butterfly valve plate assembly and a centerline butterfly valve. Background technique [0002] As we all know, the centerline butterfly valve is a component used to realize the on-off and flow control of the pipeline system, and has been widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower. The sealing form of the midline butterfly valve mostly adopts the rubber-lined sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. The existing midline butterfly valves are generally divided into two types according to the position of the sealing material, one is the rubber lining inside the valve body to achieve sealing, and the other is to cover the valve plate with an elastic sealing layer to achieve sealing; [0003] Among them, the first type of rubber lining inside the valve body is divided into two type...

Claims

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Application Information

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IPC IPC(8): F16K1/226F16K1/36F16K41/02
CPCF16K1/2261F16K1/2268F16K1/36F16K41/026
Inventor 霍克强孙亚楠郭宝霞高峰杨金龙张富君程川
Owner TIANJIN GALAXY VALVE
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