Multi-source chromatography laser measurement method and device for flue gas, particle concentration and temperature distribution

A technology of laser measurement and particle concentration, which is applied to measuring devices, particle suspension analysis, thermometers, etc., to achieve the effect of great flexibility, short measurement time and low price

Active Publication Date: 2008-07-09
ZHEJIANG UNIV
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  • Multi-source chromatography laser measurement method and device for flue gas, particle concentration and temperature distribution
  • Multi-source chromatography laser measurement method and device for flue gas, particle concentration and temperature distribution
  • Multi-source chromatography laser measurement method and device for flue gas, particle concentration and temperature distribution

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Embodiment Construction

[0032] Referring to the accompanying drawings, the present invention will be described in detail below.

[0033] In the present invention, the device for realizing multi-source tomographic laser measurement of smoke concentration, particle concentration and temperature distribution method includes a signal generator 1, a laser source 2 and an optical fiber splitter 3 connected in sequence, and also includes a A number of electric rotary tables 4 arranged within 180° on one side of the exit of the flue 9, on which an optical fiber collimator 5 and a photodetector 6 are arranged, and a coated cylindrical reflector correspondingly arranged on the other side of the exit of the flue 9 8. The electric rotary table 4 is connected to the electric table controller 7, and the optical fiber splitter 3 and the photodetector 6 are respectively connected to the computer 10 through signal lines.

[0034] A method for measuring smoke concentration, particle concentration and temperature distr...

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Abstract

The invention relates to a measurement method of smoke concentration, temperature and particle concentration distributions and a device thereof, in particular to a measurement method by using multi-source tomography technology while reconstructing smoke concentration, particle concentration and temperature distributions and a device. The method comprises the following steps of: transmitting a laser signal to an optical fiber collimator; making reciprocating swing movement as soon as the optical fiber collimator emits a light beam; reflecting the light beam by a film-plated columnar reflector to a photodetector after passing through a flue outlet; transmitting the measurement signal to a computer by the photodetector to obtain the projection data of a fault plane at different angles; reconstructing gas concentration and temperature by using the projection data; and reconstructing particle concentration by using the projection data. In the invention, a tunable laser respectively scans a particle and a smoke influencing regions, so that the measurements of the smoke and the particle are independent from each other; the fault plane distributions of smoke, particle concentration and temperature can be reconstructed at the same time to achieve 3-dimensional reconstruction; the measurement of fault plane parameters has short time and dynamic change; and the measurement cost is very low.

Description

technical field [0001] The invention relates to a method and a device for measuring smoke concentration, temperature and particle concentration distribution. More specifically, the present invention relates to a measurement method and device for simultaneously reconstructing smoke concentration, particle concentration and temperature distribution using multi-source tomography. Background technique [0002] Most of the air pollution comes from various flue gases produced during chemical reactions in various industrial processes such as energy, electric power, chemical industry, metallurgy, textiles, pharmaceuticals, and waste incineration. These flue gases contain a large number of harmful particles and gaseous substances , its emissions must be strictly controlled. Therefore, online dynamic measurement of flue gas is of great significance to environmental protection and pollution control. [0003] Traditional flue gas measurement devices, such as flue gas testers that use ...

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Application Information

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IPC IPC(8): G01N15/06G01N21/84G06F17/12G01K11/00
Inventor 岑可法王飞严建华池涌倪明江李晓东黄群星蒋旭光马增益杨家林金余其陆胜勇
Owner ZHEJIANG UNIV
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