Online measurement system and method for aerosol precursors discharged by industrial source
An aerosol and precursor technology, applied in the field of on-line measurement system for aerosol precursors in exhaust gas from fixed sources, can solve the problems of lagging analysis results, cumbersome sampling, complex analysis, etc., and achieve low maintenance cost and retrofit Strong, easy to install effect
Pending Publication Date: 2021-02-23
FUDAN UNIV
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Problems solved by technology
[0004] In order to detect the concentration of source exhaust sol precursors more conveniently, efficiently, accurately, and in real time, so as to accurately detect the concentration of particulate matter emitted from the source, and at the same time overcome the problems of bulky off-line detection equipment, cumbersome sampling, complicated follow-up analysis, and lagging analysis results
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[0055] In the following, it will be further described in conjunction with the field test of the present invention in a certain coal-fired power plant, but the protection scope of the present invention is not limited thereto.
[0056] Such as figure 1 As shown, an automatic detection system for aerosol precursors emitted by industrial sources, including: particulate matter filter 2; 3. high-temperature air intake pipe 3; W2 washing liquid tank 4; W3 washing liquid tank 5; cooling water pump 6; Liquid pump 7; W2 washing liquid pump 8; condenser 9; impact bottle 10; cooling water meter 11; salinity measuring instrument 12; liquid flow meter 13; gas flow meter 14; air pump 15; V1 valve 18; V2 valve 19; V3 valve 20; V4 valve 21; V5 valve 22.
[0057] Technical conception of the present invention is as follows:
[0058] Under the action of the suction pump, the supersaturated high-temperature flue gas in the chimney passes through the particulate matter filter, the particulate mat...
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The invention belongs to the technical field of environmental protection, and particularly relates to an online measurement system and method for aerosol precursors discharged by an industrial source.The system is divided into three parts, namely an online measurement part, a pipeline cleaning part and an automatic control part, the system specifically comprises a particulate matter filter, a high-temperature gas inlet pipe, two washing liquid tanks, a sucking pump, a cooling water pump, two washing liquid pumps, a condenser, an impact bottle, a cooling water instrument, a salinity measuringinstrument, a liquid flow meter, a gas flow meter, a nitrogen steel cylinder, a connecting pipeline, a control valve, a computer control program and the like. The online measurement part is used for measuring the concentration Cg of an aerosol precursor discharged by an industrial source; after one-time measurement is completed, the pipeline is cleaned by the pipeline cleaning part, and residual organic matters and inorganic matters are removed; and the automatic control part controls the working process of the system by a computer through a control program. The system is small in occupied area, low in investment cost, easy and convenient to maintain, convenient to transform and high in applicability.
Description
technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an on-line measurement system and method for aerosol precursors of flue gas discharged from industrial sources, especially from fixed sources. Background technique [0002] Many aerosol precursors are in the gaseous state in the chimney, and after being discharged into the ambient air, they condense to form PM2.5 (mainly inorganic salts), so that the current actual emission of particulate matter has been seriously underestimated. [0003] At present, the fixed source mainly detects the emission of solid particles in the flue gas by CEMS, but it cannot detect the aerosol precursors in the flue gas. Therefore, the present invention has great practical significance for the detection of the concentration of aerosol precursors emitted by industrial sources. At the same time Provide technical support for particulate matter emission detection in the "post-ul...
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IPC IPC(8): G01N15/06G01N25/14B08B9/032
CPCG01N15/06G01N25/142B08B9/032G01N33/0036B01D5/0012B01D5/0051B01D5/0072B01D5/0096B08B9/0325G01N1/2258G01N2001/227G01N1/4022G01N2001/4033Y02A50/20G01N2015/0681G01N2015/0046B08B9/0328B08B2209/032G01N35/00584G01N35/10G01N2035/00445G01N2035/00475
Inventor 李庆刘安林
Owner FUDAN UNIV