Sealing structure of blind plate valve and blind plate valve containing same

A technology of sealing structure and blind plate valve, which is applied in the direction of sliding valve, valve device, engine components, etc., can solve the problems of personal casualty, property, blind plate valve sealing failure, gas leakage, etc., and achieve high safety reliability and good sealing performance , good gas solubility

Inactive Publication Date: 2012-11-28
QINHUANGDAO QINYE HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In field use, due to the sealing failure of the blind plate valve, gas leakage and gas explosion cause casualties and property losses

Method used

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  • Sealing structure of blind plate valve and blind plate valve containing same
  • Sealing structure of blind plate valve and blind plate valve containing same

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0028] Such as figure 1 As shown, the sealing structure of the blind plate valve of the present invention includes a sealing ring 4 arranged between the valve plate 3 of the blind plate valve and the fixed valve seat 1 and the floating valve seat 2, and also includes a water sealing system, and the water sealing system It includes the first water ring groove 5 opened on the side where the fixed valve seat 1 of the blind plate valve contacts the valve plate 3, the second water ring groove 17 opened on the side where the floating valve seat 2 of the blind plate valve contacts the valve plate 3, and the The first water ring groove 5 and / or the second water ring groove 17 are connected to external water pipelines.

[0029] The blind plate valve of the present invention includes a fixed va...

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Abstract

The invention discloses a sealing structure of a blind plate valve and the blind plate valve containing the same. The sealing structure of the blind plate valve comprises a valve plate arranged on the blind plate valve, a sealing ring arranged between a fixed valve seat and a floating valve seat, and a water seal system, wherein the water seal system comprises a first water ring groove on the contact side of the fixed valve seat and the valve plate of the blind plate valve, a second water ring groove on the contact side of the floating valve seat and the valve plate of the blind plate valve, and an external water pipeline communicated with the first water ring groove and / or the second water ring groove. The blind plate valve comprises the fixed valve seat, the floating valve seat and the valve plate, wherein the valve plate is arranged between the fixed valve seat and the floating valve seat; and the blind plate valve also comprises the sealing structure of the blind plate valve. Through the composite sealing structure of the sealing ring and the water seal, the blind plate valve has better sealing performance and higher safety and reliability.

Description

technical field [0001] The invention relates to a sealing structure of a blind valve and a blind valve, in particular to a blind valve and a blind valve suitable for use as a reliable gas isolation device in a blast furnace gas system, a TRT blast furnace gas residual pressure power generation system and a gravity dust removal system Valve sealing structure. Background technique [0002] Blind plate valve is a gas cutoff device for blast furnace gas system, blast furnace residual pressure power generation system (referred to as TRT system) and gravity dust removal system. According to the "Gas Safety Regulations for Industrial Enterprises" (GB6222-2005), when a subsystem needs to be cut off from the running gas main pipe for construction and maintenance, the branch pipe must be separated from the gas main pipe because the gas is flammable and toxic. Safe and reliable partition to ensure the safety of construction and maintenance personnel. As a reliable cut-off device, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/10F16K3/312
Inventor 陈晓光苗玉金孟翠娥吴明远
Owner QINHUANGDAO QINYE HEAVY IND
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