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VOCs (Volatile Organic Chemicals) detection equipment based on ion mobility spectrometry

A technology of ion mobility spectrometry and detection equipment, which is applied in the field of exhaust gas detection, can solve the problems of limiting the ability to identify qualitative and quantitative capabilities, and achieve the effects of improving qualitative and quantitative capabilities, maintaining dryness, and improving resolution.

Active Publication Date: 2020-04-10
CAS NEW WORLD HEFEI ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

Ion mobility spectrometer has the advantages of portability, rapidity, sensitivity and industrialization, but due to the existence of other complex matrices such as water vapor in the flue gas, its identification, qualitative and quantitative capabilities are greatly limited.

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  • VOCs (Volatile Organic Chemicals) detection equipment based on ion mobility spectrometry

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other; the present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] refer to figure 1 , a VOCs detection device based on ion mobility spectrometry proposed by the present invention, including: one or more collection devices, a sample pretreatment device 3 for dust removal and water removal, a VOCs detector and a controller;

[0023] The VOCs detector includes an ion mobility spectrometer 5, the sample inlet of the ion mobility spectrometer 5 is provided with a dimethyl silicon film and / or a polypropylene film, and each sampling device is connected to a sample processing device through a pipeline, and each sampling device is connected to a sample processing device through a pipeline. The pipelines between the sample pretreatment...

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Abstract

The invention puts forward VOCs (Volatile Organic Chemicals) detection equipment based on ion mobility spectrometry. The equipment comprises one or more acquisition devices, a sample pretreatment device for dust removal and water removal, a VOCs detector and a controller, wherein the VOCs detector comprises an ion mobility spectrometry; a dimethyl silicon film and / or a polypropylene film are / is arranged at a sample gas inlet of the ion mobility spectrometry; each sampling device is respectively communicated with a sample treatment device through a pipeline; an electromagnetic valve is arrangedon the pipeline between each sampling device and the sample pretreatment device; the sample pretreatment device is communicated with the sample gas inlet of the ion mobility spectrometry; and the controller respectively controls the acquisition devices, the electromagnetic valve, the sample pretreatment device and the ion mobility spectrometry. The equipment can effectively remove the interference of dust, moisture and ammonia molecules in the sample gas, improve the resolution of the ion mobility spectrometry, and quickly, qualitatively and quantitatively analyze VOCS at different positions,so as to make a purification treatment scheme in a targeted manner.

Description

technical field [0001] The invention relates to the technical field of waste gas detection, in particular to a VOCs detection device based on ion mobility spectrometry. Background technique [0002] VOCs is the English abbreviation of volatile organic compounds (volatile organic compounds). VOCs mainly include alkanes, alkenes, aromatics, aldehydes or ketones, etc. Among them, most of VOCs have a certain pungent odor, and some even have certain carcinogenicity. In order to effectively monitor the content of volatile organic compounds in flue gas, ion mobility spectrometry (Ion mobility spectrometry, IMS) is often used for detection. Ion mobility spectrometer has the advantages of portability, rapidity, sensitivity, and industrialization. However, due to the presence of other complex matrices such as water vapor in flue gas, its identification, qualitative and quantitative capabilities are greatly limited. Contents of the invention [0003] Based on the technical problems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/88
CPCG01N30/06G01N30/88
Inventor 钱黎明倪国华胡浙平许福海
Owner CAS NEW WORLD HEFEI ENVIRONMENTAL PROTECTION TECH CO LTD
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