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Gas emergency cut-off valve

A shut-off valve, emergency technology, applied in the direction of lift valve, valve detail, valve device, etc., can solve the problems of low strength, affecting the service life of the shut-off valve, affecting the surface flatness and so on

Pending Publication Date: 2021-05-11
TAIZHOU PANSHI METALIC PRODECT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The valve body of the traditional gas emergency shut-off valve is formed by cast steel or cast aluminum. The valve body formed by cast steel is prone to have pores inside, resulting in poor corrosion resistance and affecting the flatness of its surface; the valve body formed by cast aluminum is also There is a problem that pores are easily generated inside, resulting in poor corrosion resistance, and it also has the problem of low strength, which affects the service life of the shut-off valve

Method used

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Embodiment Construction

[0013] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0014] Such as figure 1 As shown, the gas emergency cut-off valve includes a valve body 1, the two ends of the valve body 1 are provided with an air inlet and an air outlet, and the corresponding positions of the air inlet and the air outlet on the valve body 1 are respectively provided with connecting flanges 2. The valve body 1 has an air outlet 3 that can connect the air inlet and the air outlet. The upper and lower ends of the valve body 1 are respectively equipped with an upper cover plate 4 and a lower cover plate 5. The valve body 1 is equipped with a pull rod 6 , and the inner end of the pull rod 6 extends into the valve body 1 and is connected with a sealing rubber 7 that can seal the air outlet 3 so that the air ...

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Abstract

The invention provides a gas emergency cut-off valve, and belongs to the technical field of valves. The gas emergency cut-off valve solves the problems that a valve body of an existing gas emergency cut-off valve is formed by cast steel or cast aluminum, air holes are prone to being generated in the valve body, corrosion resistance is poor, strength is not high, and the service life is short. The gas emergency cut-off valve comprises a valve body, an air inlet and an air outlet are formed in the two ends of the valve body, connecting flanges are arranged at the positions, corresponding to the air inlet and the air outlet, of the valve body, an upper cover plate and a lower cover plate are arranged at the upper end and the lower end of the valve body respectively, a pull rod is arranged in the valve body, the inner end of the pull rod extends into the valve body to be connected with sealing rubber, a large spring is further arranged in the valve body, the connecting flanges and the valve body are made of forged steel or rolled steel plates or seamless steel pipes, the surface of the valve body is treated through electroplating, electrophoresis and plastic spraying processes, and the upper cover plate and the lower cover plate are made of rolled steel plates. The gas emergency cut-off valve has the advantages of high strength, corrosion resistance and prolonged service life.

Description

technical field [0001] The invention belongs to the technical field of valves and relates to a gas emergency cut-off valve. Background technique [0002] The gas emergency cut-off valve is used to cut off the source of dangerous materials upstream in case of equipment failure, corrosion damage, seal failure, leakage, or emergency, so as to avoid the expansion of the scope of the accident, control the impact of the accident, and reduce the loss of the accident. [0003] The valve body of the traditional gas emergency shut-off valve is formed by cast steel or cast aluminum. The valve body formed by cast steel is prone to have pores inside, resulting in poor corrosion resistance and affecting the flatness of its surface; the valve body formed by cast aluminum is also There is the problem that pores are easily generated inside, resulting in poor corrosion resistance, and also has the problem of low strength, which affects the service life of the shut-off valve. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/02F16K1/00F16K1/48F16K1/46
CPCF16K1/00F16K1/46F16K1/487F16K27/02
Inventor 赵恩云
Owner TAIZHOU PANSHI METALIC PRODECT
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