SO3 online measurement system and method in flue gas

A measurement system and technology of flue gas flow, applied in the field of flue gas pollutant measurement, to achieve the effects of avoiding secondary environmental pollution, high timeliness and accuracy, and saving labor costs

Pending Publication Date: 2019-05-10
XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

Due to the existence of these objective factors in the actual measurement process, it is difficult for traditional measurement methods to ensure the SO 3 Concentration measurement accuracy

Method used

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  • SO3 online measurement system and method in flue gas

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Embodiment Construction

[0019] The present invention is described in further detail below in conjunction with accompanying drawing:

[0020] refer to figure 1 , SO in the flue gas described in the present invention 3 The online measurement system includes a heat tracing sampling device 1, an electrochemical measurement system 3, an absorption liquid flow measurement device 4, a flue gas flow measurement device 6, a flue gas suction pump 7, an absorption liquid delivery pump 5, an absorption liquid recovery device 11 and The absorption liquid atomization device 10 arranged in the flue; the sampling port of the heat tracing sampling device 1 is inserted into the flue, the outlet of the heat tracing sampling device 1 is connected with the inlet of the electrochemical measurement system 3, and the flue gas of the electrochemical measurement system 3 The gas outlet is connected to the inlet of the flue gas suction pump 7 through the flue gas flow measuring device 6, the outlet of the flue gas suction pum...

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Abstract

The invention discloses a SO3 online measurement system and method in flue gas. A sampling port of a heat-tracing sampling device is inserted into a flue, an outlet of the heat-tracing sampling devicecommunicates with an inlet of an electrochemical measurement system, a flue gas outlet of the electrochemical measurement system communicates with the inlet of a flue gas dump pump through the flue gas flow measurement device; the outlet of the flue gas dump pump communicates with the flue gas inlet on a flue wall surface; an absorption liquid outlet of the electrochemical measurement system communicates with the inlet of the absorption liquid conveying pump through an absorption liquid flow measurement device, and the outlet of the absorption liquid conveying pump is divided into two paths;one path communicates with the absorption liquid recycling device, and the other path communicates with the inlet of the absorption liquid atomizing device; a control end of the heat-tracing samplingdevice, a control end of a filter back-flushing device, an output end of the absorption liquid flow measurement device and the output end of the flue gas flow measurement device are connected with a controller. The system and method disclosed by the invention can accurately measure the SO3 concentration in the flue gas in real time.

Description

technical field [0001] The invention belongs to the technical field of flue gas pollutant measurement, and relates to a method for measuring SO in flue gas 3 On-line measurement system and method. Background technique [0002] With the NOx, SO in the flue gas 2 and the implementation of ultra-low emissions of smoke and dust, SO in flue gas 3 The issue of emissions has increasingly become the focus of attention. SO in flue gas 3 The traditional measurement method first puts the SO 3 collected, and then by manual measurement of SO in the collected solution 3 However, the timeliness of the traditional measurement method is poor, and the traditional measurement method has many human links, which is easy to cause errors, and the repeatability and reproducibility of the measurement results are poor. In addition, SO in flue gas 3 The content is low, and the test data of each measurement link has a great influence on the final measurement result. In order to ensure the accura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00G01N27/26
Inventor 李帅英武宝会牛国平王晓冰周虹光黄钢英张国富齐全刘毅李明皓
Owner XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD
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