Multipurpose flue gas sampling system

Abstract

The invention provides a multipurpose flue gas sampling system which is convenient to operate, capable of sampling and capturing various flue gas pollutants in different temperature environments and good in adaptability. The system comprises: a temperature control device which is connected with a sampling device and is used for controlling the temperature of the sampling device; the sampling device which is used for sampling flue gas and detecting temperature, and feeding back a detected temperature signal to the temperature control device in real time; and a sampling device which is connected with the sampling device and is used for receiving the flue gas output by the sampling device and respectively carrying out trapping test on pollutants in the flue gas.

Description

technical field [0001] The invention relates to the technical field of air pollutant control, in particular to a multipurpose flue gas sampling system. [0002] technical background [0003] At present, with the increasingly serious environmental protection problems, the country has stricter and stricter requirements on the emission of flue gas pollutants from coal-fired power plants. Standard, on September 30, 2018, Zhejiang Province issued DB33 / 2147-2018 "Emission Standards of Air Pollutants for Coal-fired Power Plants" provincial and local standards, stipulating that from November 1, 2018, new coal-fired power boilers and existing Coal-fired power generation boilers with a single output of 300MW and above generating units are required to have particulate matter less than 5mg / m 3 , nitrogen oxides less than 35mg / m 3 , sulfur dioxide less than 50mg / m 3 In November 2020, Jiangsu Province issued the "Emission Standards of Air Pollutants for Coal-fired Power Plants (Draft fo...

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Problems solved by technology

[0003] At present, with the increasingly serious environmental protection problems, the country has stricter and stricter requirements on the emission of flue gas pollutants from coal-fired power plants. Standard, on September 30, 2018, Zhejiang Province issued DB33 / 2147-2018 "Emission Standards of Air Pollutants for Coal-fired Power Plants" provincial and local standards, stipulating that from November 1, 2018, new coal-fired power boilers and existing Coal-fired power generation boilers with a single output of 300MW and above generating units are required to have particulate matter less than 5mg / m 3 , nitrogen oxides less than 35mg / m 3 , sulfur dioxide less than 50mg / m 3 In November 2020, Jiangsu Province issued the "Emission Standards of Air Pollutants for Coal-fired Power Plants (Draft for Comment)", which, in addition to restricting the emissions of particulate matter, sulfur dioxide, and nitrogen oxides, also restricted mercury and its compounds and smoke For the current emission requirements, it is necessary to test the pollutants, but the existing flue gas sampling system has a single function, and often can only sample and capture a single pollutant; at the same time, The integration is low, the operation is inconvenient, and the error is large; in addition, there are also problems such as poor ability to adapt to harsh working conditions, inconvenient on-site maintenance, and heavy workload.

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