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Gas pipe movable connection valve with multiple seals

A technology of multiple seals and gas pipes, used in shaft seals, threaded connections, engine seals, etc., to improve sealing performance, facilitate installation, and prevent gas leakage

Pending Publication Date: 2019-09-10
WUHU TAIHE PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above applications all involve research on the safety of gas valves, but there is still a need for more diverse research directions in the industry, and there is still a lot of room for improvement in their actual performance

Method used

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  • Gas pipe movable connection valve with multiple seals
  • Gas pipe movable connection valve with multiple seals
  • Gas pipe movable connection valve with multiple seals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1-Figure 9 As shown, a gas pipe union valve with multiple seals in this embodiment includes a valve body 100, an outer shell 105 is provided on the outside of the valve body 100 to cover the internal overall structure, and a valve body 100 is provided with a valve for gas circulation. However, the main flow chambers 101 located on the front and rear sides of the sealing interface are not directly connected, but the main flow chambers 101 are respectively opened in the front and back, and the inner sealing cylinder 103 is arranged in the sealing interface, and the inner sealing cylinder 103 and the front end of the valve body 100 (Such as image 3 The gap between the main flow chambers 101 on the left side in the orientation) is the outer flow chamber 102, and the inner seal cylinder 103 is provided with an inner flow chamber 104, and the inner flow chamber 104 is connected to the rear end of the valve body 100 (such as image 3 The main flow cavity 101 ...

Embodiment 2

[0053] A gas pipe union valve with multiple seals in this embodiment is basically the same as the above embodiment, further, as Figure 7 As shown, the double-chamber sealing ring 400 in this embodiment includes an inner ring body 410 for compressing and sealing the inner flow chamber 104. The diameter of the inner ring body 410 is larger than the diameter of the inner flow chamber 104. The outer side of the inner ring body 410 is An outer ring body 420 with an inverted U-shaped cross-section is arranged around the circumference. The outer ring body 420 is set above the outer flow chamber 102. The outer edge of the outer ring body 420 is also provided with an outward extension section, which is embedded in the end cap for sealing. The inner side of the cover 106, and the bottom of the extension section is provided with a circle of lower convex section 421, the lower convex section 421 is embedded into the valve body 100 below; the extension section is also provided with an inne...

Embodiment 3

[0056]A gas pipe live connection valve with multiple seals in this embodiment is basically the same as the above-mentioned embodiment. Further, the upper end of the inner sealing cylinder 103 in this embodiment is provided with a sealing interface cover 110, and the sealing interface cover 110 is connected to the inner sealing cylinder. A sealing ring 112 is arranged between the side walls of 103, and the side wall of the inner chamber of the sealing interface cover 110 is flush with the side wall of the inner circulation chamber 104 of the inner sealing cylinder 103. The valve body 100 includes the inner sealing cylinder 103. In the industry, casting is usually used. Its processing accuracy is difficult to meet the gas sealing requirements of this embodiment. By separately setting the sealing interface cover 110 on the upper end of the inner sealing cylinder 103, the processing accuracy of the product can be effectively improved and the sealing performance can be ensured. The ...

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Abstract

The invention discloses a gas pipe movable connection valve with multiple seals and belongs to the field of gas pipelines. Main communication cavities are formed in a valve body. The valve body is further provided with a seal connector communicating with the main communication cavities. An inner seal barrel is arranged in the seal connector. An outer communication cavity is between the inner sealbarrel and the main communication cavity in the front end of the valve body. An inner communication cavity is formed in the inner seal barrel and communicates with the main communication cavity in therear end of the valve body. The two ends of the valve body are each provided with a rotary joint in a rotary fit mode. The outer side wall of the part, extending into the valve body, of the rotary joint is provided with a circle of outer embedded groove in the circumferential direction. An inner embedded groove is formed in the corresponding position of the inner wall of the valve body. A C-shaped clamping ring is matched between the inner embedded groove and the outer embedded groove. Through the gas pipe movable connection valve, the deficiency of leakproofness of an indoor gas valve in theprior art is overcome, leakproofness of the valve can be improved effectively through structure optimization of the gas valve, a gas leak is prevented, and safety of a gas pipeline system is furtherensured.

Description

technical field [0001] The invention relates to the technical field of gas pipelines, in particular to a gas pipeline union valve with multiple seals. Background technique [0002] With the development of society, gas fuels such as natural gas and liquefied petroleum gas have gradually replaced traditional solid fuels such as wood and coal. Mass welcome. Gas has been rapidly developed and popularized in my country, the number of gas users has increased dramatically, and the probability of gas accidents has also increased significantly. Poisoning, fires, and explosion disasters caused by gas leakage during use occur from time to time, and preventing gas leakage has become a worldwide research topic. In particular, higher requirements are placed on the tightness and ease of use of gas connection valves. [0003] After retrieval, a large number of patents have been published on the technical research of gas valves, such as the Chinese patent application number: 2011102494591...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K41/10F16K27/08F16K31/60F16K27/00F16K37/00F16L15/00F16J15/06
CPCF16K41/10F16K27/08F16K31/60F16K27/00F16K37/0025F16L15/006F16J15/06
Inventor 汪贤文周起能
Owner WUHU TAIHE PIPE IND
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