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Detection tube used for gas trapping

A technology of gas capture and detection tubes, which is applied in the direction of detecting the appearance of fluid at the leakage point, and using liquid/vacuum degree for liquid tightness measurement, etc., to achieve the effect of good monitoring performance, good flexibility and simple structure

Pending Publication Date: 2020-02-04
CNOOC GAS & POWER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, although the existing design of leakage gas capture detection tube can also achieve the purpose of leakage gas capture, however, the existing design has some inherent defects, so it is necessary to further improve the detection tube for pipeline leakage monitoring

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  • Detection tube used for gas trapping
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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0024] Such as figure 1 , figure 2 As shown, the detection tube for gas capture provided in this embodiment includes an outer sheath tube 1 and a permeable membrane inner tube 2, the outer sheath tube 1 is set outside the permeable membrane inner tube 2, and the permeable membrane inner tube 2 and A gap is left between the outer sheath tub...

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Abstract

The invention relates to a detection tube used for gas trapping. The detection tube includes an osmosis membrane inner tube and an outer protection sleeve tube. Stiffeners are arranged outside the osmosis membrane inner tube. The osmosis membrane inner tube is integrally formed with the stiffeners. The outer protection sleeve tube is arranged outside the osmosis membrane inner tube in a sleeving manner. A gap is left and arranged between the osmosis membrane inner tube and the outer protection sleeve tube. A plurality of through holes used for ventilation are evenly opened on the outer protection sleeve tube. According to the detection tube, a structure is simple, flexibility is good, and a leakage gas trapping process can be realized in negative pressure, normal pressure and pressurization states of the inner tube.

Description

technical field [0001] The invention relates to a detection tube for gas collection and relates to the technical field of gas leakage monitoring. Background technique [0002] Safety accidents caused by leakage of gas pressure vessels or pressure pipelines have always been the core of enterprise safety protection. In order to prevent accidents, it is necessary to monitor the leakage status of gas pressure vessels or pressure pipelines. There are many kinds of gas leakage monitoring technologies, which can be divided into direct monitoring and indirect monitoring according to different monitoring signals. The direct monitoring method is a technology that directly captures the leaked gas by using a detection tube and analyzes the leaked gas. Compared with indirect monitoring technologies such as infrasonic method and optical fiber method, direct monitoring technology can capture leaked gas and identify the characteristics of leaked gas, which has a low false alarm rate and c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/04
CPCG01M3/04
Inventor 付子航侯海龙张瑜王秀林冯亮杨玉霞杨宏伟姚辉超穆祥宇
Owner CNOOC GAS & POWER GRP
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