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A gas composition monitoring system and method

A technology of gas composition and monitoring system, which is applied in the direction of measuring devices, analyzing materials, and material analysis through optical means, and can solve the problems of difficult preparation, short storage time of gas standard sources, difficult storage and use of standard gases, etc. Achieve high safety, easy storage, and high precision requirements

Active Publication Date: 2019-07-02
BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a gas composition monitoring system and method for solving the problem of SF in the prior art 6 Decomposition gas detection equipment needs to use gas standard source in the production and installation process, the storage time of gas standard source is short, the preparation is difficult, and the SF 6 Due to the certain toxicity of some gases in the decomposition gas, there is a certain degree of danger. The equipment must be calibrated during use, and the transportation, storage and use of standard gases are more difficult and other technical problems.

Method used

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  • A gas composition monitoring system and method
  • A gas composition monitoring system and method
  • A gas composition monitoring system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] An embodiment of the present invention provides a gas composition monitoring system, such as figure 1 As shown, the system includes:

[0052] A light source 10 for emitting light with stability;

[0053] The filter device 11 is used to filter the light emitted by the light source 10 to obtain the light and light intensity of the target wavelength;

[0054] The gas storage tank 12 is used to store the gas to be tested and has the function of isolating the gas to be tested;

[0055] An interferometer 13, configured to make the light emitted by the light source form interference light;

[0056] A light intensity sensor 14, configured to detect the intensity of the interference light, and generate a voltage signal that is linearly related to the intensity of the interference light;

[0057] A data acquisition device 15, configured to convert the voltage signal into a digital signal;

[0058] The data processing device 16 is used to compare the data corresponding to the ...

Embodiment 2

[0070] Embodiments of the present invention specifically provide a gas composition monitoring system, which can be mainly used for monitoring 6 The composition and content of the gas as the base. Such as figure 2 As shown, the system includes:

[0071] The light source 10 is a laser source or other stable light source for emitting infrared light. The data processing system 16 can control the power switch of the light source 10 and fine-tune the intensity of light according to the needs, and the stability of light emission is good, and the continuity of light emission of the light source in the infrared band must have excellent performance.

[0072] The filter device 11 is used to allow only the infrared light of a specific wavelength to pass through according to the parameters issued by the filter control device 18, and can control the transmission intensity of the fine-tuned light as required to play the role of fine-tuned light intensity.

[0073] The filter control devi...

Embodiment 3

[0097] Embodiments of the present invention continue to provide a gas composition monitoring method, which is applicable to other monitoring systems or monitoring equipment. Such as image 3 shown, including:

[0098]101. Emit stable light through a light source;

[0099] 102. Filter the light emitted by the light source to obtain the light and light intensity of the target wavelength;

[0100] 103, storing the gas to be tested in a gas storage pool with the function of isolating the gas to be tested;

[0101] 104. Make the received light emitted by the light source form interference light;

[0102] 105. Detect the intensity of the interference light, and generate a voltage signal that is linearly related to the intensity of the interference light;

[0103] 106. Convert the voltage signal into a digital signal;

[0104] 107. Comparing the data corresponding to the wavelength of the light source, the parameters of the interferometer, and the collected digital signal with t...

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Abstract

The invention discloses a gas component monitoring system and method. The system comprises a light source, a light filtering device, a gas storage tank, an interferometer, a light intensity sensor, a data acquisition device and a data processing device, wherein the light source is used for emitting light with stability; the light filtering device is used for filtering the light emitted by the light source to obtain light with a target wavelength and light intensity; the gas storage tank is used for storing gas to be detected and has a function of separating the gas to be detected; the interferometer is used for enabling the light emitted by the light source to form interference light; the light intensity sensor is used for detecting the intensity of the interference light and generating a voltage signal with a linear relation with the intensity of the interference light; the data acquisition device is used for converting the voltage signal into a digital signal; the data processing device is used for comparing the wavelength of the light source, parameters of the interferometer and data corresponding to the acquired digital signal with calibration data to obtain components and content of the gas to be detected.

Description

technical field [0001] The invention relates to the technical field of gas composition monitoring, in particular to a gas composition monitoring system and method. Background technique [0002] SF 6 As an excellent insulating medium and arc extinguishing medium, gas is used in GIS equipment, SF 6 It has been widely used in electrical equipment such as circuit breakers, but in the environment of electrical equipment partial discharge, arc, spark, etc., SF 6 The gas is easy to decompose which affects its performance, so SF 6 Gas monitoring is essential for the stable operation of electrical equipment, if SF 6 If there are impurities in the gas, if it fails to meet the specified standards, then its arc extinguishing and insulation properties will be greatly reduced. 6 Real-time monitoring of gas purity can directly determine SF 6 Current insulation condition of insulated electrical equipment, and judging SF with long running time 6 Whether the insulated electrical equipme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17
CPCG01N21/17
Inventor 张智威马惟彬宋彦斌程平鄢志平赵冲陈闽林刘全春凌志强
Owner BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY