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Gas cut-off valve in earthquake

A shut-off valve and gas technology, which is applied in seismic signal receivers, safety valves, balance valves, etc., can solve problems such as energy waste, gas transmission cannot be closed in a timely manner, and explosions in the transmission system, so as to avoid energy waste, poisoning or The effect of the explosion accident

Active Publication Date: 2012-09-05
NINGBO JIAERLING PNEUMATIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these energy supply pipelines are damaged by a strong earthquake, because the transmission system cannot close the gas transmission in time, the gas will still be discharged when the pipeline is damaged, which may cause poisoning in light cases, explosion in severe cases, and cause energy waste

Method used

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  • Gas cut-off valve in earthquake
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  • Gas cut-off valve in earthquake

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Embodiment Construction

[0022] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0023] Examples, see Figure 1 to Figure 2 Shown:

[0024] The present invention is a gas seismic stop valve, comprising a valve body 10 and a valve cover 20, the bottom of the valve body 10 is a gas inlet, the top is a gas outlet, a valve stem 30 installed on the valve cover 20, one end of the valve stem 30 is connected to There is a sealing device 40 located in the valve body 10, and the other end is connected with a reset handle 60 and an earthquake sensor 50. There is a large spring 70 between the valve cover 20 and the sealing device 40, and one end of the large spring 70 is against the sealing device. 40, the other end against the valve cover 20. After installing the gas seismic shut-off valve of the present invention in the main pipeline in the current gas energy delivery system, under normal circumstanc...

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Abstract

The invention relates to a gas cut-off valve in earthquake, comprising a valve body, a valve cover and a valve rod which is arranged on the valve cover. The gas cut-off valve is characterized in that a sealing device which is arranged in the valve body is connected with the left end of the valve rod, the right end of the valve rod is connected with a reset handle and an earthquake sensor, a big spring is arranged between the valve cover and the sealing device, one end of the big spring pushes against the sealing device, and the other end of the big spring pushes against the valve cover. When the earthquake occurs, poisoning or exploding accidents caused by the gas leakage of a gas delivery pipeline which is damaged by the earthquake is avoided, and meanwhile, energy waste is also avoided.

Description

technical field [0001] The invention relates to the field of automatic valves, in particular to a gas earthquake stop valve. Background technique [0002] With the development of modern science and technology, the application of coal gas and natural gas in people's life and industrial production has become more and more popular, providing convenient energy for people's life and work. At present, these gas energy supply methods are basically transported through pipelines, and pipelines are laid from gas storage stations to use terminals. When these energy supply pipelines are damaged by a strong earthquake, because the transmission system cannot close the gas transmission in time, the gas will still be discharged when the pipeline is damaged, which may cause poisoning in light cases, explosion in severe cases, and cause energy waste. These problems can be avoided if an automatic shut-off device is installed in the gas delivery system to shut down the delivery system in time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/36G01V1/18
Inventor 单军波严瑞康张建设单谟君周云
Owner NINGBO JIAERLING PNEUMATIC MACHINERY