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Multifunctional downhole gas measuring device

A gas measurement and multi-functional technology, applied in safety devices, measurement, boreholes/well components, etc., can solve problems such as large safety hazards, insufficient systems, and inability to detect mining areas, and achieve long-distance measurement, long service life, and powerful The effect of automatic management capabilities

Inactive Publication Date: 2016-01-06
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology

Existing detection methods usually require inspectors to conduct regular inspections, which are not systematic enough to conduct a comprehensive inspection of the mining area, resulting in greater safety hazards

Method used

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  • Multifunctional downhole gas measuring device

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Embodiment Construction

[0015] 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.

[0016] see figure 1 , in an embodiment of the present invention, a multi-functional downhole gas measuring device, comprising a downhole acousto-optic alarm 2, a detector 3, an electromagnetic valve 4, an air suction port 5, an infrared Fourier transform interferometer module 6, and an air extraction pipeline 7. Exhaust fan 8, data acquisition and processing module 9, sound and light alarm 10 outside the well and control host 11. The air extraction pipeline 7 ...

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Abstract

The invention discloses a multifunctional downhole gas measuring device which comprises a downhole acousto-optic alarm, a detector, an electromagnetic valve, a plurality of gas suction ports, an infrared Fourier transform interferometer module, a gas extraction pipeline, an induced draft fan, a data collecting and processing module, an out-of-well alarm and a control host, the gas extraction pipeline is arranged at the top of a mine according to an operation area, the gas suction ports are arranged at the bottom of the gas extraction pipeline, and the infrared Fourier transform interferometer module and the detector are mounted oppositely on the side walls of the gas suction ports. The infrared Fourier transform interferometer module and the detector are utilized to perform spectral analysis on gas flowing through the gas suction ports, concentration of methane, oxygen, carbon monoxide and carbon dioxide in the coal mine is analyzed through the control host, and timely pre-warning can be realized owing to high spectral analysis speed.

Description

technical field [0001] The invention relates to a downhole gas measuring device, in particular to a multifunctional downhole gas measuring device. Background technique [0002] At present, gas accidents are still the accidents that cause major deaths and the largest number of fatalities among coal mine accidents. It has the characteristics of suddenness and seriousness, and it occupies the first place among the large coal mine accidents in which the death toll is more than 3 people. [0003] In the process of coal mining, as the coal and rock stripping mining work is carried out, after the surface air enters the underground, due to the decay of organic matter in the underground, coal oxidation, blasting operations, and the desorption of harmful gases in the coal seam, the composition of the underground air occurs. major changes. Especially after the catastrophic accident took place underground, a large amount of poisonous and harmful gases were produced, which seriously af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00E21B47/00
CPCE21B47/00E21F7/00
Inventor 张智慧唐治王学滨白春红解书华
Owner LIAONING TECHNICAL UNIVERSITY
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