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Device for determining mercury content with different forms in coal-burning flue gas and its application

A technology of coal-fired flue gas and measuring device, which is used in measuring devices, instruments, scientific instruments, etc.

Inactive Publication Date: 2012-03-07
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013]However, in the above-mentioned patented technology, there are also technologies such as the use of fine optics, photoelectric conversion, and capillary electrophoresis, which are complicated to operate and difficult to maintain. The technical problem to be solved by the invention

Method used

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  • Device for determining mercury content with different forms in coal-burning flue gas and its application
  • Device for determining mercury content with different forms in coal-burning flue gas and its application
  • Device for determining mercury content with different forms in coal-burning flue gas and its application

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Embodiment 1

[0054] A mercury speciation device such as figure 1 As shown, it includes the mercury analyzer GA, and also includes the coal-fired flue gas supply pipeline, condenser A and condenser B, the supply device for the absorption liquid X, namely the peristaltic pump PX, the storage tank GX for the absorption liquid X, and the storage tank for the absorption liquid X. The discharge tank CX, the supply device of the absorption liquid Y is the peristaltic pump PY, the storage tank GY of the absorption liquid Y, and the discharge tank CY of the absorption liquid Y; the condenser A and the condenser B respectively include two independent condenser pipes A1 , A2 and B1, B2;

[0055] Condenser tubes A1 and A2 of condenser A have the same structure, the same shape and size, the outer diameter of the main body is 45mm, and the height of the main body is 200mm. Taking the condenser tube A1 as an example, its structure is as follows figure 2 As shown, 1 is the mercury-containing flue gas i...

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Abstract

The invention discloses a device for determining mercury content with different forms in coal-burning flue gas and its application, which simultaneously realizes a quantitative determination of mercury with different forms in flue gas through two paths of different absorption determination systems. Firstly, coal-burning flue gas is divided into two paths, and the content of Hg<0> and Hg<T> are respectively determined by the different absorption liquid, finally, the content of Hg<2+> is calculated according to the difference of the content of Hg<0> and Hg<T>. The device for determining mercury content with different forms in coal-burning flue gas has good accuracy for determining mercury with different forms, provides a direct data material for analyzing the mercury form distribution in coal-burning flue gas and making mercury emission reduction measurement, and is favorable to the realization of the pollutant discharge control of the coal-burning power plant. The invention has the advantages of simple operation, easy maintenance, small investment and small operation cost. The device for determining mercury content with different forms in coal-burning flue gas saves the direct investment and operators investment of the coal-burning power plants.

Description

technical field [0001] The invention mainly relates to a measuring device for different forms of mercury content in coal-fired flue gas and its application in the determination of mercury content in simulated flue gas, belonging to the fields of coal combustion process and environmental protection. The utility model is a device with simple manufacturing process and convenient use, which can be applied to the monitoring of mercury discharge of flue gas pollutants in coal-fired power plants. Background technique [0002] Flue gas mercury emissions from coal-fired power plants are the world's largest anthropogenic source of mercury emissions. Heavy metal mercury pollutants have the characteristics of staying in the environment for a long time, being difficult to remove, and causing great harm to the human body. At present, it is urgent to monitor the emission of mercury in the flue gas of coal-fired power plants to formulate emission reduction measures. Flue gas mercury has tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 吴江张艳艳潘卫国任建兴何平张锦红石宙代学伟刘瑛罗海燕杨凯刘思敏
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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