Flue gas concentration detection device based on TDLAS technology and image analysis

A technology for image analysis and flue gas concentration, which is applied to measurement devices, analysis materials, and material analysis by optical means. and applicability, improve detection accuracy, increase the effect of effective optical path

Pending Publication Date: 2020-04-21
CHINA JILIANG UNIV
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Problems solved by technology

Although the Herriott cell also has advantages such as simple structure, it still has the disadvantages of limited optical path and limited detection accuracy for low-concentration gas to be measured.

Method used

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  • Flue gas concentration detection device based on TDLAS technology and image analysis
  • Flue gas concentration detection device based on TDLAS technology and image analysis
  • Flue gas concentration detection device based on TDLAS technology and image analysis

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Embodiment Construction

[0036] Further description will be given below in conjunction with the embodiments shown in the accompanying drawings.

[0037] Such as figure 1 The shown smoke concentration detection device based on TDLAS technology and image analysis includes an optical path module, a gas path module, an integrating sphere gas chamber module and a signal processing module. The optical path module includes a detection light source emitting assembly and a detection light source receiving assembly; the detection light source emitting assembly, the integrating sphere air chamber module, the detection light source receiving assembly and the signal processing module are sequentially arranged along the optical path transmission direction of the detection light source; the integrating The ball air chamber module includes a measuring integrating sphere 40 and a reference integrating sphere 48 with the same size and material; the air path module is connected with the measuring integrating sphere. Fo...

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Abstract

The invention relates to the field of flue gas concentration detection and provides a flue gas detection device based on a TDLAS technology and image analysis. The device can detect a gas concentration and a dust concentration in a flue gas at the same time, detection cost is reduced, and detection precision and detection efficiency can be greatly improved. According to the technical scheme, the flue gas concentration detection device based on the TDLAS technology and the image analysis is characterized in that the device comprises a light path module, a gas path module, an integrating spheregas chamber module and a signal processing module; the light path module comprises a detection light source transmitting assembly and a detection light source receiving assembly; the detection light source transmitting assembly, the integrating sphere gas chamber module, the detection light source receiving assembly and the signal processing module are sequentially arranged along a light path transmission direction of a detection light source; the integrating sphere gas chamber module comprises a measurement integrating sphere and a reference integrating sphere which are the same in size and material; and the gas circuit module is connected with the measurement integrating sphere.

Description

technical field [0001] The invention relates to the field of smoke concentration detection, in particular to a smoke concentration detection device based on TDLAS technology and image analysis. Background technique [0002] Flue gas is a mixture of dust and gas. Real-time online detection of flue gas concentration in industrial production is of great significance for environmental monitoring and industrial development. At present, there are many studies on the detection of dust or gas alone, but there are relatively few studies on the simultaneous detection of dust and gas with one device. [0003] Dust concentration detection methods mainly include weighing method, light scattering method, light transmission method and so on. Due to its cumbersome steps and the inability to reflect the concentration of dust in real time, the weighing method is only suitable for use as a calibration comparison method in the laboratory, and cannot meet the rapid detection requirements requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39G01N21/84G01N21/01
CPCG01N21/01G01N21/39G01N21/84G01N2021/0112G01N2021/394
Inventor 杨佳晨夏凤毅范昊鹏包军宇
Owner CHINA JILIANG UNIV
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