Gas butterfly valve capable of achieving automatic closing through gas backstreaming

An automatic shut-off and gas technology, applied to valve details, safety valves, balance valves, etc., can solve problems such as reducing equipment service life, gas leakage, and pipeline corrosion

Inactive Publication Date: 2021-07-13
杨鸿华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the current gas butterfly valve is in use, when the user opens the rotating shaft, the gas is in the open state, and the elderly at home will forget to close the rotating shaft when their memory is not good. Although there is a safety valve, there is still a danger of gas leakage. When the gas butterfly valve is in use, the gas remaining in the pipeline is not treated, which will corrode the pipeline and reduce the service life of the equipment. Therefore, we propose a gas butterfly valve that uses gas backflow to realize automatic closing

Method used

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  • Gas butterfly valve capable of achieving automatic closing through gas backstreaming
  • Gas butterfly valve capable of achieving automatic closing through gas backstreaming
  • Gas butterfly valve capable of achieving automatic closing through gas backstreaming

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1-5 , a gas butterfly valve that uses gas backflow to realize automatic closing, including a gas butterfly valve 1, the top of the gas butterfly valve 1 is movably connected with a control rotary valve 2, the outer side of the control rotary valve 2 is movably connected with a rotary handle 6, and the inner side of the control rotary valve 2 Rotating teeth 9 are movably connected, and the left and right sides of the rotating teeth 9 are mova...

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Abstract

The invention relates to the technical field of butterfly valves and provides a gas butterfly valve capable of achieving automatic closing through gas backstreaming. The gas butterfly valve comprises a gas butterfly valve body, wherein the top end of the gas butterfly valve body is movably connected to a control rotary valve, the left side and the right side of the gas butterfly valve body are movably connected to regulation and control frameworks, the bottom end of the gas butterfly valve body is movably connected to a transmission gas pipe, and the bottom end of the gas butterfly valve body is movably connected to a gas outlet rotating wheel through the transmission gas pipe. According to the gas butterfly valve capable of achieving automatic closing through gas backstreaming, when a curved rotating rod at the left side moves upwards, the curved rotating rod drives an air bag rod at the left side to move upwards, the air bag rod drives a semicircular rotating rod to deflect rightwards, the semicircular rotating rod drives a load spring rod to move downwards, the load spring rod drives a curved air bag to move downwards, the curved air bag drives the air bag rod at the left side to press downwards, and residual gas in a pipeline is absorbed, so that the purpose that the pipeline is prevented from being corroded by the residual gas is achieved, and the service life of equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of butterfly valves, in particular to a gas butterfly valve which uses gas backflow to realize automatic closing. Background technique [0002] Gas special line sealing butterfly valve is suitable for gas transportation in coal gasification, coal chemical industry, metallurgy, ceramics and other industries. Problems such as loose opening and closing are the more important butterfly valve equipment for modernization and have a good development prospect. [0003] When the current gas butterfly valve is in use, when the user opens the rotating shaft, the gas is in the open state, and the elderly at home will forget to close the rotating shaft when their memory is not good. Although there is a safety valve, there is still a danger of gas leakage. When the gas butterfly valve is in use, the gas remaining in the pipeline is not treated, which will corrode the pipeline and reduce the service life of the equipment....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/00F16K31/60F16K31/53F16K27/02
CPCF16K17/00F16K27/0218F16K31/535F16K31/60
Inventor 杨鸿华
Owner 杨鸿华
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