Toxic smoke safety shutoff valve

A globe valve, safety technology, applied in sliding valves, valve details, valve devices, etc., can solve the problems of lax closure, unsafe leakage, easy damage of rubber, etc., and achieve the effect of avoiding safety accidents

Inactive Publication Date: 2013-04-24
湖南金中环保设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of structure has the disadvantages that the rubber is easy to be damaged, and it is difficult to repair and replace after damage, the valve body is easy to accumulate dust, and the closure is not tight, so it is unsafe to leak.

Method used

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  • Toxic smoke safety shutoff valve
  • Toxic smoke safety shutoff valve
  • Toxic smoke safety shutoff valve

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 As shown, a toxic fume safety cut-off valve includes a valve body 15, a valve plate 3, and a gas-tight box 1. There is a valve plate chute 2 on the inner wall of the gas-tight box 1, and valves are opened on both sides of the valve plate 3. The sealing ring groove 28 on the side of the plate through hole is connected with the sealing ring groove 24 on the blind hole side of the valve plate, and the sealing ring groove 28 on the side of the valve plate through hole on both sides of the valve plate 3 is connected through the through hole 29 of the sealing ring groove on the side of the valve plate through hole, and the valve plate 3 The valve plate blind hole side seal ring groove 24 on both sides is connected through the valve plate blind hole side seal ring groove through hole 25, and there is a valve plate through hole side seal ring 5 in the valve plate through hole side seal ring groove 28...

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PUM

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Abstract

The invention discloses a toxic smoke safety shutoff valve which comprises a valve body, a valve plate and a gas sealing box, wherein a valve plate sliding chute is arranged on the inner lateral wall of the gas sealing box. The toxic smoke safety shutoff valve has the advantages that the valve plate is sealed by dynamic pressure: a seal ring simultaneously expands outwards under the effect of high-pressure gases when the valve plate is opened in place or closed in place under the effect of an air cylinder, the seal ring is tightly attached to a valve base, dynamic pressing of the valve plate and the valve base is achieved, and the valve plate and the valve base are sealed without leakage; the valve body is sealed by gas pressure: the valve body is of a totally sealed structure, after nitrogen is filled into the valve body, pressure in the valve is larger than that in a coal gas pipe, and therefore toxic smoke is ensured not to leak into the valve body and gas sealing of the valve body is achieved; safe alarming is achieved: safety accidents caused by damage of the seal ring are avoided; automatic ash cleaning is achieved: ashes are ensured not to accumulate in the valve body; and the air inlet mode of a hollow pipe of a piston rod is improved, and therefore the toxic smoke safety shutoff valve is attractive in appearance, ingenious and safe.

Description

technical field [0001] The invention relates to a poisonous smoke safety valve. Background technique [0002] The gas valve is a special valve widely used in metallurgical and chemical industries to control the on-off of gas pipelines. The gas valves currently on the market are all mechanically pressed against the valve seat, and the rubber ring on the valve plate is a fixed structure. This kind of structure has the disadvantages that the rubber is easy to be damaged, and it is difficult to repair and replace after the damage, easy to accumulate dust in the valve body, and the valve is not tightly closed, so it is unsafe to leak. Contents of the invention [0003] The purpose of the present invention is to provide a toxic fume safety cut-off valve. [0004] The technical solution of the present invention is a toxic fume safety cut-off valve, which includes a valve body, a valve plate, and a gas-tight box. The sealing ring groove on the hole side and the sealing ring gro...

Claims

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Application Information

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IPC IPC(8): F16K3/16F16K3/30F16K27/04F16K37/00
Inventor 钟汉光袁江
Owner 湖南金中环保设备股份有限公司
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