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Non-methane total hydrocarbon and benzene series detection system

A technology of non-methane total hydrocarbons and detection system, which is applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of high cost and complex structure of detection system.

Pending Publication Date: 2021-01-19
华电智控(北京)技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a detection system for non-methane total hydrocarbons and benzene series, to alleviate the technical problems of complex structure and high cost of existing detection systems

Method used

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  • Non-methane total hydrocarbon and benzene series detection system
  • Non-methane total hydrocarbon and benzene series detection system

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Embodiment 1

[0029] figure 1 It is a schematic diagram of a detection system for non-methane total hydrocarbons and benzene series according to an embodiment of the present invention, such as figure 1 As shown, the device includes: a fourteen-way valve 10, a plurality of chromatographic columns 30, a plurality of quantitative loops 20 and an FID detector 40, wherein the fourteen-way valve is respectively connected with the plurality of chromatographic columns, the multi-column A quantitative loop, the plurality of chromatographic columns are connected to the FID detector;

[0030] The fourteen-way valve 10 is used to insert sample gas and carrier gas, and send quantitative sample gas into the plurality of chromatographic columns through the quantitative loop and the carrier gas, and discharge the sample gas after quantification is completed. Complete quantitative sample gas;

[0031] It should be noted that the above-mentioned carrier gas includes: the first carrier gas, the second carri...

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Abstract

The invention provides a non-methane total hydrocarbon and benzene series detection system, and relates to the technical field of environmental monitoring, the non-methane total hydrocarbon and benzene series detection system comprises a fourteen-way valve, a plurality of chromatographic columns, a plurality of quantitative rings and an FID detector, the fourteen-way valve is respectively connected with the plurality of chromatographic columns, the plurality of quantitative rings, the plurality of chromatographic columns and the FID detector; the fourteen-way valve is used for introducing sample gas and carrier gas, feeding quantitative sample gas into the plurality of chromatographic columns through the quantitative ring and the carrier gas, and discharging the quantitative sample gas after the quantification is finished; the plurality of quantitative rings are used for storing quantitative sample gas; the plurality of chromatographic columns are used for separating non-methane totalhydrocarbon and / or benzene series in the quantitative sample gas, and feeding the quantitative sample gas after separation into the FID detector; the FID detector is used for detecting the separated quantitative sample gas and determining the content of non-methane total hydrocarbon and the content of benzene series in the sample gas, and the technical problems that an existing detection system iscomplex in structure and high in cost are solved.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a detection system for non-methane total hydrocarbons and benzene series. Background technique [0002] In recent years, people have paid more and more attention to environmental quality issues, and the state has become more comprehensive in monitoring ambient air quality. The air pollutant standards promulgated by various industries have made clear requirements for the emission of non-methane total hydrocarbons and benzene series, and introduced fixed-source exhaust gas Technical standards and monitoring methods for continuous monitoring systems. [0003] At present, domestic online continuous monitoring systems that meet the requirements of national standards for monitoring non-methane total hydrocarbons and benzene series in volatile organic compounds are often based on the structural principle of multi-valve, multi-column, and multi-detector, such as: double ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/68
CPCG01N30/02G01N30/68
Inventor 姬红波李化京姬二鹤
Owner 华电智控(北京)技术有限公司
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