Diffusion type spectral absorption methane probe with explosion-proof performance

A spectral absorption and diffusion technology, applied in the field of gas sensors, can solve the problems of unrealized photoelectric separation of probes, restrictions on batch application, and high maintenance costs, and achieve the effects of minimizing the length of the optical path, ensuring explosion-proof performance, and simple operation and assembly

Pending Publication Date: 2020-09-25
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

These miniaturized laser methane sensing probes can effectively reduce the volume of the probes to a certain extent, but they all adopt multi-component integration, because the probes in the application do not realize photoelectric separation, and most of the product designs are not explosion-proof due to equipment non-explosion-proof, water immersion, high temperature and high humidity. The probe is damaged by dust, etc., and the maintenance cost is high, which restricts the large-area batch application

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  • Diffusion type spectral absorption methane probe with explosion-proof performance
  • Diffusion type spectral absorption methane probe with explosion-proof performance

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Embodiment Construction

[0027] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0028] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention belongs to the technical field of gas sensors, and relates to a diffusion type spectral absorption methane probe with explosion-proof performance. The diffusion type spectral absorptionmethane probe comprises a probe explosion-proof shell, wherein one end of the probe explosion-proof shell is connected with a matched explosion-proof box, the other end of the probe explosion-proof shell is set as a closed end, a methane detection gas chamber is assembled in the probe explosion-proof shell, a plurality of gas diffusion holes communicated with the methane detection gas chamber areformed in the closed end of the probe explosion-proof shell, and the probe explosion-proof shell is also filled with an insulating explosion-proof material. The diffusion type spectral absorption methane probe has the advantages of simple integral operation and assembly and high structural strength, and is especially suitable for matching use in coal mines and other places with explosion-proof requirements, such as impact vibration, falling, moisture and the like.

Description

technical field [0001] The invention belongs to the technical field of gas sensors, and relates to a diffusion-type spectral absorption methane probe with explosion-proof performance. Background technique [0002] In recent years, with the increasing requirements for environmental safety, various gas detection technologies emerge in an endless stream. Among them, infrared light absorption technology has become a research hotspot due to its excellent characteristics such as large detection range, high precision, and long life. [0003] Optical gas sensors include infrared absorption type, spectral absorption type, fluorescent type, optical fiber chemical material type, etc., mainly infrared absorption type gas analyzers, because different gases have different infrared absorption peaks, by measuring and analyzing infrared absorption peaks Detect gas. Optical gas sensor has high anti-vibration ability and anti-pollution ability. Combined with computer, it can continuously test...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39G01N21/27G01N21/01
CPCG01N21/39G01N21/27G01N21/01G01N2201/022
Inventor 李军于庆孙世岭樊荣张书林郭清华莫志刚苟怡刘芬王尧赵庆川周德胜李涛柏思忠饶兴鑫黄倩罗前刚
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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