Catalytic combustion gas concentration meter based on optical fiber Bragg grating and its application method

A catalytic combustion type, concentration meter technology, applied in the field of optoelectronic measurement, can solve the problems of susceptibility to electromagnetic interference, flammable gas safety hazards, etc.

Inactive Publication Date: 2015-10-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a catalytic combustion gas concentration meter based on an optical fiber Bragg grating and its use method, which are used to solve the problem of potential safety hazards of combustible gas in a high-temperature ignition environment and the problem of being easily affected by electromagnetic interference

Method used

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  • Catalytic combustion gas concentration meter based on optical fiber Bragg grating and its application method
  • Catalytic combustion gas concentration meter based on optical fiber Bragg grating and its application method

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Embodiment 1

[0050] Embodiment 1: as Figure 1-2 As shown, a catalytic combustion gas concentration meter based on fiber Bragg gratings includes a temperature measuring device, a gas combustion device and an explosion-proof device; the temperature measuring device includes a fiber Bragg grating 1, a cylindrical heat-conducting wall 7, an optical fiber lead 9. The optical fiber Bragg grating 1 is packaged into an optical fiber temperature measuring contact through a protective sleeve, and the optical fiber temperature measuring contact is pasted in the inner hole opened at the fixed radius of the cylindrical heat conduction wall 7, and the optical fiber lead-out line 9 passes through the flameproof The extraction hole on the device base 6 is drawn out; the gas combustion device includes a catalyst layer 3, a heating resistance coating layer 4, a heating source lead wire 5, and an electrode 8, wherein the catalyst layer 3 is coated on the outer surface of the heating resistance coating layer ...

Embodiment 2

[0056] Embodiment 2: as Figure 1-2 As shown, a catalytic combustion gas concentration meter based on fiber Bragg gratings includes a temperature measuring device, a gas combustion device and an explosion-proof device; the temperature measuring device includes a fiber Bragg grating 1, a cylindrical heat-conducting wall 7, an optical fiber lead 9. The optical fiber Bragg grating 1 is packaged into an optical fiber temperature measuring contact through a protective sleeve, and the optical fiber temperature measuring contact is pasted in the inner hole opened at the fixed radius of the cylindrical heat conduction wall 7, and the optical fiber lead-out line 9 passes through the flameproof The extraction hole on the device base 6 is drawn out; the gas combustion device includes a catalyst layer 3, a heating resistance coating layer 4, a heating source lead wire 5, and an electrode 8, wherein the catalyst layer 3 is coated on the outer surface of the heating resistance coating layer ...

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Abstract

The invention relates to a catalytic combustion type gas concentration meter based on an optical fiber Bragg grating and an application method thereof and belongs to the technical field of photoelectron measurement. The catalytic combustion type gas concentration meter comprises a temperature measurement device, a gas combustion device and an explosion-proof device, wherein the temperature measurement device comprises the optical fiber Bragg grating, a cylindrical heat-conduction wall and an optical fiber outgoing line, wherein the optical fiber Bragg grating is packaged by a protection sleeve to form an optical fiber temperature measurement contact; the optical fiber temperature measurement contact is stuck to an inner hole formed in a fixed radius part of the cylindrical heat-conduction wall; the gas combustion device comprises a catalyst layer, a heating resistor coating layer, heating source lead wires and electrodes; the catalyst layer is laid on the outer surface of the heating resistor coating layer; the heating resistor coating layer is located on the outer surface of the heat-conduction wall; the explosion-proof device comprises an explosion-proof cover and a base; the explosion-proof cover covers the temperature measurement device and the gas combustion device which are embedded in the base. According to the catalytic combustion type gas concentration meter based on the optical fiber Bragg grating, the detection of the concentration of specific gas in a combustible gas environment is realized and the anti-jamming capability is high.

Description

technical field [0001] The invention relates to a catalytic combustion gas concentration meter based on an optical fiber Bragg grating and a method for using the same, belonging to the technical field of optoelectronic measurement. Background technique [0002] In the environment of flammable and explosive gas, gas detection sensors occupy an important position, and the excessive concentration of flammable gas will have a serious impact on the personal safety and production safety of the staff. Long-term studies have shown that the real-time monitoring of gas concentration sensors largely determines the operational reliability of safe production. If the gas sensor cannot respond to the concentration of combustible gas in the environment in time or if it is damaged, the safety will not be guaranteed. Vicious accidents caused by the concentration of combustible gas exceeding the standard have occurred frequently at home and abroad. [0003] Catalytic combustion sensors are ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/22
Inventor 李川杨彤瑶李英娜谢涛赵振刚
Owner KUNMING UNIV OF SCI & TECH
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