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Fast measurement method for exhaust gas components and concentration and test instrument

A technology for testing instruments and components, applied in the direction of material electrochemical variables, etc., can solve the problems that cannot guarantee accuracy and cannot effectively solve the loss of sulfur dioxide, loss of gas dissolution, etc.

Inactive Publication Date: 2010-05-05
楼竞晖
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Problems solved by technology

[0015] The above research results show that very little condensed water will absorb sulfur dioxide, but during the flue gas treatment process using the flue gas processor based on the principle of refrigerator dehydration, sulfur dioxide and nitrogen oxides in the flue gas will inevitably be in the condenser Coexistence, so it will inevitably lead to the dissolution loss of gas, especially when the flue gas concentration is low, the test result is zero
Therefore, the method of refrigeration and dehydration after extracting the flue gas cannot effectively solve the loss of sulfur dioxide in the test, and cannot guarantee the accuracy of the instrument for the low-concentration sulfur dioxide concentration test in the flue gas.

Method used

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  • Fast measurement method for exhaust gas components and concentration and test instrument
  • Fast measurement method for exhaust gas components and concentration and test instrument
  • Fast measurement method for exhaust gas components and concentration and test instrument

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Embodiment Construction

[0063] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0064] This method is based on the following studies:

[0065] To build a temperature control system in the laboratory, see attached Figure 7 , carry out the following experiments.

[0066] 1) SO with a concentration of 100ppm 2 Fill the air bag with standard gas, set the incubator to different temperatures, and test the output electrical signal of the sensor in the air bag, see Table 1:

[0067] Table 1. Effect of temperature change on sensor (sulfur dioxide) output

[0068]

[0069] Note: The measuring gas is a dry standard gas with zero humidity made up of 99.99% pure nitrogen and sulfur dioxide gas

[0070] 2) Set the temperature of the incubator to any temperature within 0-80°C, fill the air bag with 100ppm standard gas with different humidity, and measure the output electrical signal of the sensor, see Table 2:

[0071] Table 2. E...

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Abstract

The invention discloses a fast measurement method for exhaust gas components and concentration and a test instrument, belonging to the technical field of air pollution prevention. The test instrument comprises a testing unit encapsulated with a sensor, a connecting unit, a control unit and a data processing unit; the testing unit is connected with the control unit by the connecting unit; the control unit is connected with the data processing unit by a wireless transmission module or a data line. The method is as follows: the sensor of the corrected test instrument is inserted into a gas flue to be tested so as to obtain the testing result. Compared with the prior art, the accuracy of the test results of the invention is increased, simultaneously the test instrument has fast test speed and wide market prospect.

Description

technical field [0001] The invention relates to a flue gas emission testing method and instrument, in particular to a flue gas component concentration rapid testing method and testing instrument, belonging to the technical field of air pollution prevention and control. Background technique [0002] Flue gas emissions from pollution sources such as power plant boilers, industrial kilns, and heating boilers are the main source of environmental air pollution in most areas of my country. Among them, sulfur dioxide (SO 2 ) and nitrogen oxides (NO x ) is the main pollution factor. It is controlled and monitored in most countries of the world. In my country, in addition to the online continuous flue gas monitor fixedly installed at the boiler discharge port, the portable flue gas composition direct reading monitor is the main detection tool for various environmental monitoring, environmental supervision, and installation and commissioning of flue gas emission control equipment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26
Inventor 楼竞晖张万山
Owner 楼竞晖
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