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Gas emergency cut-off valve

A cut-off valve and gas technology, applied in the direction of valve lift, valve details, safety valve, etc., can solve the problems of single function, high price and difficult to popularize, and achieve the effect of preventing safety hazards and avoiding the spread of disasters

Inactive Publication Date: 2014-07-02
邹燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, in response to such problems, many companies have introduced some alarm devices for gas leakage and fire, which have played a certain role. However, this type of alarm device on the market has a single function, and most of them can only alarm but cannot further cut off the gas and completely Put an end to accidents, there are still hidden dangers
In recent years, some imported products can turn off the gas while alarming, but it is difficult to popularize because of the high price

Method used

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  • Gas emergency cut-off valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] A valve stem (17) is installed in the center of the inner wall of the valve body (2), a gasket (1) is installed at the lower end of the valve stem (17), and a metal pressure sheet (20) is installed on the top of the gasket (1). The top of the sheet (20) is connected to the sealing spring (19), the upper end of the sealing spring (19) is connected to the spring sleeve (18), and the upper end of the spring sleeve (18) is connected to the valve stem (17) to pass through the sealing spring (19), the spring sleeve (18) and bonnet (3), at the joint where the valve stem (17) passes through the bonnet (3) and the spring sleeve (18), an O-ring (4) is installed to slide and seal the valve stem (17) effect, the lower part of the bonnet (3) is connected with the upper part of the valve body (2), the upper end of the valve stem (17) is connected with the lower end of the handle (12), and the lower periphery of the handle (12) is equipped with The armature (8), the handle (12) are co...

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Abstract

The invention relates to a gas device, in particular to a gas emergency cut-off valve capable of automatically cutting off gas supply under the condition of gas leakage or temperature abnormality, belonging to the gas valve manufacturing industry. The gas emergency cut-off valve comprises a valve body, a sealing pad, a valve rod, a permanent magnet, an electromagnetic coil and a return spring. Under a normal condition, the gas emergency cut-off valve can be manually opened, and under other conditions, the electromagnetic coil can be used for generating magnetic force in a mode of powering on the electromagnetic coil so as to drive an armature to downwards move and ensure that the armature is separated from the suction of the permanent magnet, and the valve is closed under the action of the return spring.

Description

Technical field: [0001] The invention relates to a gas device, especially a gas emergency cut-off valve which can automatically cut off the gas supply in case of gas leakage or abnormal temperature, which belongs to the manufacturing industry of gas valves. Background technique: [0002] At present, with the continuous improvement of urban environmental protection requirements, the extensive use of clean energy (liquefied petroleum gas, coal gas, natural gas) has brought great convenience to the lives of the people. Extensive use of gas is a manifestation of social progress and urban modernization. It has greatly reduced the degree of urban pollution, and at the same time brought great convenience and efficiency to people, but at the same time it has also caused many disasters to society. Gas leakage The hazards are increasing day by day. Compared with explosions and fires caused by coal-fired accidents, gas accidents are more concealed and sudden, and are less detectable a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/38F16K1/00F16K31/08F16K31/11F16K31/68
Inventor 邹燕
Owner 邹燕
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