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An automatic continuous sampling system for dioxins

A dioxin-like, sampling system technology, applied in sampling, sampling devices, instruments, etc., can solve problems such as short-term intermittent sampling, and achieve the effect of improving accuracy, solving regional and seasonal effects, and reducing effects.

Active Publication Date: 2021-08-10
BEIJING SDL TECH +1
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Problems solved by technology

[0005] In view of the various defects of current dioxin sampling, the automatic continuous sampling system of dioxins of the present invention adopts the method of fixed installation of fixed pollution source discharge port, which solves the problem that manual sampling requires sampling personnel to carry portable equipment to the site for each sampling. The method of sampling at the alternate sampling port
The system of the present invention can also realize the automatic and continuous sampling of dioxins, which solves the problem that manual sampling can only be taken intermittently in a short time, makes the sampling results more comprehensive, and can comprehensively monitor the average discharge and overall discharge situation of the discharge enterprises

Method used

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  • An automatic continuous sampling system for dioxins

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[0022] The specific implementation manners of the present invention will be described in more detail below in conjunction with the accompanying drawings and examples, so as to better understand the solution of the present invention and its advantages in various aspects. However, the specific embodiments and examples described below are for the purpose of illustration only, rather than limiting the present invention.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only th...

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Abstract

The invention relates to an automatic continuous sampling system for dioxins. The system includes: a sampling probe, a cooling unit, an adsorption unit, a water removal filter unit, an air extraction unit, a control unit and a measurement unit; the sampling probe, the cooling unit, the adsorption unit, the water removal filter unit and The air extraction units are connected sequentially; the control unit is respectively connected to the air extraction unit and the measurement unit; the measurement unit includes a flue gas temperature measuring device, a flue gas flow rate pressure measuring device and a mass flow meter, and the flue gas The gas temperature measuring device is used to measure the temperature of the flue gas to be tested, the flue gas flow rate and pressure measuring device is used to measure the flow rate and pressure of the flue gas to be tested, and the mass flowmeter is used to measure the The flow rate of the sampled gas. The system of the invention can carry out continuous automatic sampling for a long time.

Description

technical field [0001] The invention generally relates to the technical field of gas sampling, in particular to an automatic continuous sampling system for dioxins. Background technique [0002] Dioxins are short for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), with a total of 210 isomers. Dioxins are not only highly toxic, but also carcinogenic, mutagenic, bioaccumulative, and long-term stable in environmental media. They are the most toxic organic compounds known in the world. Dioxins are mainly derived from the combustion of chlorinated organic compounds, among which the discharge of fixed pollution sources such as garbage treatment plants and hazardous waste treatment plants is an important source of dioxins in the environment. [0003] Domestic waste incineration pollution source exhaust gas dioxin sampling mainly refers to the two methods of EP23 and EN1948. On this basis, my country has formulated "Determination of Dioxin in A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/24
CPCG01N1/2205G01N1/2214G01N1/2258G01N2001/2282
Inventor 敖小强闫军赵文博汪海涛郭庆丰
Owner BEIJING SDL TECH
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