Harmful gas detection system

Abstract

The invention provides a harmful gas detection system, which comprises a monitor terminal arranged at a remote monitoring center, a gas detection device arranged at a monitoring station and a filtering and exhaust device. The gas detection device is connected to the monitor terminal through a wireless network. The gas detection device comprises a toxic gas detector. The monitor terminal comprisesa processor, a display and an alarm. The processor can receive information sent from the gas detection device and process the information. The display displays the information. The alarm gives an alarm when harmful gas exceeds standard. Meanwhile, a server controls the filtering and exhaust device to discharge gases. The system can achieve high-sensitivity detection of harmful gases in a production place and during production process and give an alarm when the concentration is abnormal so as to raise the ability of monitoring harmful gases.

Description

technical field [0001] The invention relates to a harmful gas detection system. Background technique [0002] In some special construction sites such as factories and mines, there are often situations where harmful gases exceed the standard, and some harmful gases are prone to fire, explosion and other dangers under certain conditions, such as a large amount of methane (CH4) produced during coal production and processing 4 ) and carbon monoxide (CO) and other flammable, explosive and harmful gases have brought a series of problems to coal mine safety and environmental pollution. Therefore, it is very important to perform high-sensitivity detection of harmful gas concentrations in some production sites and production processes. [0003] At present, most of the precision instruments for measuring gas concentration are optical fiber single gas sensors, and conventional transmission absorption gas cells are mostly used as the core device of optical fiber gas sensors, but there ...

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Problems solved by technology

[0003] At present, most of the precision instruments for measuring gas concentration are optical fiber single gas sensors, and conventional transmission absorption gas cells are mostly used as the core device of optical fiber gas sensors, but there are coupling problems between optical fibers and discrete optical components, complex alignment, and stable temperature The performance is not ideal, the anti-seismic performance is poor and the detection accuracy is not high.

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