Gas extraction pipeline methane concentration detecting device

A technology for gas extraction and methane concentration, which is applied to measuring devices, material analysis through optical means, instruments, etc., can solve the problems of slow detection of methane concentration and inaccurate measurement, so as to prevent danger, ensure concentration and reduce disassembly and maintenance cost effects

Inactive Publication Date: 2019-03-29
CCTEG SHENYANG RES INST +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of slow detection speed and inaccurate measurement of methane concentration in the detection pipeline in the prior art, thereby providing a methane concentration detection device for gas drainage pipeline with fast detection speed and accurate detection

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  • Gas extraction pipeline methane concentration detecting device

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Embodiment Construction

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them.

[0026] The gas drainage pipeline methane concentration detection device of this embodiment, such as figure 1 As shown, it is arranged on the gas extraction pipeline 1, and the direction of the arrow is the flow direction of the gas. The gas extraction pipeline methane concentration detection device includes a branch pipeline 2 , a laser transmitter 31 , a laser receiver 32 , a control room, an air induction mechanism 5 , a filter mechanism 6 and a gas valve 8 .

[0027] The branch pipeline 2 has an upstream end and a downstream end, and the upstream end and the downstream end communicate with the extraction pipeline 1 respectively, such as figure 1 As shown, the branch pipeline 2 is located outside the extraction pi...

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Abstract

The invention relates to the technical field of concentration measurement, and in particular relates to a gas extraction pipeline methane concentration detecting device. The device is arranged on a gas extraction pipeline, and comprises a branch pipeline, a laser emitting component, a laser receiving component, a control room and an air guiding mechanism. The branch pipeline has an upstream end and a downstream end. The upstream end and the downstream end are communicated with the extraction pipeline respectively. The laser emitting component is arranged on the branch pipeline to emit laser todetect methane. The laser receiving component and the laser emitting component are arranged on the branch pipeline oppositely, and the laser receiving component is used for receiving the laser. The control room is connected with the laser emitting component and the laser receiving component and is used for analyzing the methane concentration. The air guiding mechanism is arranged on the branch pipeline, is arranged outside the laser receiving component and the laser emitting component, and is used for introducing gas in the extraction pipeline into the branch pipeline to make the gas flow rate in the branch pipeline and the extraction pipeline the same. The gas extraction pipeline methane concentration detecting device provided by the invention has the advantages of high detection speed and accurate detection.

Description

technical field [0001] The invention relates to the technical field of concentration measurement, in particular to a methane concentration detection device for a gas drainage pipeline. Background technique [0002] Gas is formed by the decomposition of cellulose and organic matter by anaerobic bacteria in the initial stage of coal accumulation by ancient plants. In an environment of high temperature and high pressure, while coal is formed, gas continues to be generated due to physical and chemical effects, and gas is usually mined in coal mining. The main components of gas are alkanes, of which methane accounts for the vast majority, and a small amount of ethane, propane and butane. In addition, it generally contains hydrogen sulfide, carbon dioxide, nitrogen and moisture, and traces of inert gases. Methane in gas has a wide range of uses, and can be used as fuel and raw materials for the production of hydrogen, carbon black, carbon monoxide, acetylene, hydrocyanic acid, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/00
CPCG01N21/00G01N21/01
Inventor 刘鹏周海坤金树军邹德东王连聪宁亮王洋洋
Owner CCTEG SHENYANG RES INST
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