Infrared online data processing and controlling device and method of beam tube

Abstract

The invention discloses an infrared online data processing and controlling device and method of a beam tube, belonging to the technical field of detection of gases in mines. The infrared online data processing and controlling device comprises an infrared gas detector, wherein an infrared oxygen detection element, an infrared carbon oxide detection element, an infrared carbon dioxide detection element, an infrared methane detection element and a CPU (Central Processing Unit) are arranged in the infrared gas detector; and the infrared oxygen detection element, the infrared carbon oxide detection element, the infrared carbon dioxide detection element and the infrared methane detection element are electrically connected with the CPU through an analog-to-digital conversion module. According to the infrared online data processing and controlling device, gas concentration can be rapidly converted in to an electric signal by various infrared detection elements in the infrared gas detector, and the electric signal is then stored in the CPU, therefore the processing mode is concise, and the detection and analysis cycle of a single-path sample gas is shortened; in addition, the infrared detection elements belong to sensors, have high sensitivity, can operate on line for a long time and overcome the defects that the chromatographic column in the prior art is not easy to age and cannot continuously operate for a long time.

Description

technical field [0001] The invention belongs to the technical field of gas detection in mines, and in particular relates to a data processing and control device and method for bundle tube detection. Background technique [0002] In recent years, with the enhancement of mine safety awareness, the fire spontaneous combustion bundle tube monitoring system has gradually been widely used in the coal industry. Under the control of the control cabinet, the gas circuit is automatically switched through the control cabinet to detect the sample gas, and the possible risk of spontaneous combustion and explosion is analyzed through the gas change trend diagram and the principle of triangular explosion analysis, so as to realize the early warning of spontaneous combustion and explosion in underground fires and avoid accidents. [0003] At present, the chromatograph is mainly used as the detection equipment in the fire spontaneous combustion beam tube monitoring system, and the working mo...

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Problems solved by technology

[0003] At present, the chromatograph is mainly used as the detection equipment in the fire spontaneous combustion beam tube monitoring system, and the working mode of the chromatograph is: after the sample gas enters the chromatograph, under the transport of the carrier gas, the flow rate of the detected gas is changed after passing through the chromatographic column , so as to play the role of separation, and then converted into electrical signals by thermal conductivity or hydrogen flame detectors and transmitted to the acquisition card, and the acquisition card converts the signals about the concentration of each gas into digital signals and then sends them to the management workstation. It can be seen that , the detection and processing process of the chromatograph is relatively complicated and the speed is relatively slow. The analysis time of a sample gas is generally 10-15 minutes, and the detection cycle is long; Aging speed, in view of this, the chromatograph cannot run continuously online for a long time

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