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Laser methane sensor

A technology of methane sensor and laser, applied in color/spectral characteristic measurement, mining equipment, mining equipment, etc., can solve problems such as danger

Inactive Publication Date: 2013-02-13
安徽中科瀚海光电技术发展有限公司
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  • Application Information

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Problems solved by technology

This characteristic is extremely dangerous in practical applications, which is the binary misdetection problem that has plagued people for a long time

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Embodiment Construction

[0019] exist figure 1 Among them, a laser methane sensor suitable for underground methane monitoring in coal mines, ARM controller 2, spectral information acquisition module 3, signal processing module 4, communication module 5, sound alarm module 6 and light alarm module 7 are all installed in the housing 1 Inside, ARM controller 2, signal processing module 4, communication module 5, sound alarm module 6 and light alarm module 7 are mounted on the main control board. The loudspeaker 11 is mounted on the inner side wall of the casing 1 . The spectral information acquisition module 3 is separately installed on the upper end of the casing 1, and is used to acquire the laser absorption spectrum information of methane gas.

[0020] The lower end of the housing 1 is provided with an optical cable interface 8, the optical cable interface 8 is connected to the spectral information acquisition module 3, the spectral information acquisition module 3 is connected to the monitoring host...

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Abstract

The invention discloses a laser methane sensor suitable for monitoring methane in an underground coal mine. The laser methane sensor comprises a shell, an ARM (Advanced RISC Machine) controller, a signal processing module, a spectrum information obtaining module, a communication module, a concentration display screen, a rate display window, an audible alarm module, a light alarm module, a loud speaker, an alarm indicating lamp, wherein the concentration display screen, the rate display window and the alarm indicating lamp are arranged on the surface of the shell; the ARM controller is respectively connected with the signal processing module, the communication module, the concentration display screen, the rate display window, the audible alarm module and the light alarm module; the spectrum information obtaining module is connected with the signal processing module ; the audible alarm module is connected with the loud speaker; and the light alarm module is connected with the alarm indicating lamp. By regarding the laser methane sensor as the core of a TDLAS (Tunable Diode Laser Absorption Spectroscopy), the laser methane sensor, disclosed by the invention, has the advantages of obtaining a real-time display function of the concentration and the rate and acousto-optic early warning as well as warning functions, and realizing rapid, highly sensitive and remote monitoring of the concentration of the methane gas.

Description

[technical field] [0001] The invention relates to a laser methane sensor, in particular to a laser methane sensor for coal mine gas monitoring. [Background technique] [0002] In order to solve problems such as gas (the main component is methane, hereinafter referred to as methane) outburst and explosion, it is necessary to strengthen the monitoring of methane, and the main device for monitoring methane is a gas sensor. [0003] At present, mine-used methane sensors are mainly based on the principle of catalytic combustion detection, and the key components (black and white components) are mainly imported, and the life of the black and white components is only half a year to one year. Dust, this kind of structural metal foam is easy to be blocked by dust, and it needs to be cleaned regularly every day, which is a lot of work. In addition, when the catalytic element measures high-concentration methane, because the methane occupies the oxygen in the air, the catalytic reaction...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18G01N21/31
Inventor 白薇李幼安陈玖英宁小玲戴云海
Owner 安徽中科瀚海光电技术发展有限公司