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Concentration measurement device and method for gas produced by laser drilling of coal and rock

A gas concentration measurement, coal and rock technology, applied in measurement devices, color/spectral property measurement, material analysis by optical means, etc., can solve the problem of unable to meet the detection needs, unable to reflect the overall environment, easy leakage of gas collection and other problems , to achieve the effect of fast detection, avoiding leakage and polluting the environment, and strong air tightness

Active Publication Date: 2019-11-05
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

There are mainly two types of commonly used gas composition detection methods: one is laboratory chemical analysis method, and the other is real-time sampling analysis method. However, these two types of methods have the following defects: one is that gas collection is easy to leak; It is because the collected gas changes the measurement environment, cannot reflect the overall environment, and cannot fully reflect the real result; the third is that the detection time for gases with complex components is longer
Therefore, these two types of methods can no longer meet the needs of detecting gas components in laser drilling coal rock tests.

Method used

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  • Concentration measurement device and method for gas produced by laser drilling of coal and rock
  • Concentration measurement device and method for gas produced by laser drilling of coal and rock

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] Please refer to figure 1 , the embodiment of the present invention provides a kind of gas concentration measuring device that laser drills into coal rock to produce, and it mainly comprises measuring chamber 10, the first laser emitting unit 63, laser receiving unit 64, the second laser emitting unit 20, sealing unit 30 and a direction adjustment mechanism (not shown in the figure), the measurement chamber 10 is a hollow rectangular structure, which is horizontally arranged on the operating platform (not shown in the figure), the left side and the right side of the measurement chamber 10 There is a first through hole (not shown in the figure) communicating with the inside of each side, the centers of the two first through holes are located on the ...

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Abstract

The invention discloses a concentration measurement device and method for gas produced by laser drilling of coal and rock. The device includes a measurement chamber, a first laser transmitting unit, asecond laser transmitting unit, a laser receiving unit, a data acquisition system and a direction adjusting mechanism. The inner part of the measurement chamber is hollow. The first laser transmitting unit and the laser receiving unit are arranged on the left and right sides of the measurement chamber respectively, the data acquisition system is connected with the laser transmitting units, the first laser transmitting unit is used for transmitting lasers, the laser receiving unit is used for receiving the lasers, an optical signal is converted into an electrical signal and sent to the data acquisition system for processing, and the transmitting end of the first laser transmitting unit and the receiving end of the laser receiving unit are on the same straight line.

Description

technical field [0001] The invention relates to the field of measuring gas concentration produced by laser drilling into coal rocks, in particular to a gas concentration measurement device and method produced by laser drilling into coal rocks. Background technique [0002] During the process of laser drilling into coal rocks, gases such as hydrogen sulfide, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen monoxide, and nitrogen dioxide will be produced. These gases will pollute the environment, and some gases may even endanger human health. Therefore, measuring the type and concentration of gas produced in the laser drilling test of coal and rock is convenient for exploring the necessary safety protection measures and the treatment of harmful exhaust gas in practical engineering applications. There are mainly two types of commonly used gas composition detection methods: one is laboratory chemical analysis method, and the other is real-time sampling analysis method....

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39G01N21/01G01N21/15
CPCG01N21/39G01N21/01G01N21/15G01N2021/391G01N2021/0112G01N2021/151
Inventor 罗耀坤文国军王玉丹吴玲玲官东林
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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