Ultralow discharged flue gas analyzer based on ultraviolet multiple reflection pool technique

A flue gas analyzer and multiple reflection technology, which are applied in the analysis of materials, material analysis by optical means, instruments, etc., can solve the problem that the monitoring indicators cannot meet the ultra-low emission monitoring, and increase the gas absorption path and ensure stability. performance and reliability, compact structure

Inactive Publication Date: 2017-01-04
安徽蓝盾光电子股份有限公司
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Problems solved by technology

The range of existing conventional flue gas analyzers is basically above 200ppm, even up to 2000ppm, and its monitoring indicators are far from meeting the needs of ultra-low emission monitoring

Method used

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  • Ultralow discharged flue gas analyzer based on ultraviolet multiple reflection pool technique
  • Ultralow discharged flue gas analyzer based on ultraviolet multiple reflection pool technique
  • Ultralow discharged flue gas analyzer based on ultraviolet multiple reflection pool technique

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Embodiment Construction

[0024] Such as Figure 1-3 As shown, an ultra-low emission flue gas analyzer based on ultraviolet multiple reflection cell technology includes an analyzer case 1, a sample gas inlet 11 and a zero gas inlet 12 are arranged on the rear panel of the analyzer case 1, and the analyzer case 1 is provided with a rotameter 7 and a touch screen 6 on the front panel, and an air outlet 14 is provided on the analyzer case 1, and a membrane filter 13, a gaseous pollutant detection module 10, a temperature control spectrum analysis module 5, two-position three-way valve 4, oxygen sensor 9, power supply module 2, diaphragm pump 3, main control module 8; gaseous pollutant detection module 10 and temperature control spectrum analysis module 5 are connected through quartz optical fiber 17;

[0025] The gaseous pollutant detection module includes a pulsed xenon lamp ultraviolet light source 21 and a detection chamber 23. The pulsed xenon lamp ultraviolet light source 21 is electrically connected...

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Abstract

The invention discloses an ultralow discharged flue gas analyzer based on an ultraviolet multiple reflection pool technique. The ultralow discharged flue gas analyzer comprises an analyzer case, a gaseous pollutant detection module, a temperature control spectrum analysis module and a two-position three-way valve; a main control module controls the two-position three-way valve, so that to-be-detected sample gas enters the gaseous pollutant detection module, light emitted by a light source of the gaseous pollutant detection module is reflected by a combined lens and a multiple reflection pool and absorbed by the to-be-detected sample gas flowing through a detection chamber, light carrying to-be-detected sample gas absorption information is gathered by a focusing lens to be coupled to silica optical fibers and then transmitted to be delivered into the temperature control spectrum analysis module by the silica optical fibers to be subjected to light splitting processing, then an absorption spectrum of the gas can be obtained, the concentration of the to-be-detected sample gas can be analyzed by conducting differential analysis on the spectrum and combining a chemometric algorithm, and the to-be-detected sample gas is finally discharged from an emptying port formed in the analyzer case through an oxygen sensor. The analyzer is compact in structure, easy to operate, stable, reliable and capable of achieving on-line analysis on ultralow-concentration flue gas.

Description

technical field [0001] The invention relates to an ultra-low emission flue gas analyzer based on ultraviolet multiple reflection pool technology, which is applied to the field of ultra-low emission monitoring of flue gas from fixed pollution sources. Background technique [0002] As air pollution becomes more and more serious, the state's efforts to control emissions from pollution sources are gradually increasing. In September 2014, the National Development and Reform Commission, the Ministry of Environmental Protection, and the National Energy jointly issued the "Coal Power Energy Conservation and Emission Reduction Upgrading Action Plan (2014-2020)", proposing that by 2020, the active units in the eastern region will basically reach the level of gas turbine units through transformation. Requirements for emission limits where SO 2 and NO x The emission concentration is not higher than 35mg / m 3 , 50mg / m 3 , ultra-low emissions put forward extremely high requirements for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33G01N21/03
CPCG01N21/0303G01N21/33
Inventor 杨凯张帅李传新
Owner 安徽蓝盾光电子股份有限公司
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