The influence of water on corona discharge in the flue gas

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI:10.1109/ELINSL.2002.995940

Peiping Wei, L. Dong, Shuyu Han, Xiaochun Chi, Jia-xiang Yang

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引用次数: 3

Abstract

In this paper a novel type of a water film corona discharge experiment model is designed. The reactor is composed of needle-plate electrodes that are placed in a glass container filled with the flue gas, (the plate electrode is immersed in the water). The mechanism of the formation of corona discharge in the pollution flue gas containing sulfur dioxide (SO/sub 2/) and nitrogen oxides (NO/sub x/) is investigated under the conditions that there are different concentration of sulfur dioxide and nitrogen oxides of the flue gas and different applied voltages. Based on this the emphasis is on studying the influence of water on corona discharge in flue gas. The experimental results show that the corona wind forming between high-voltage electrode and water film by corona discharge enhances the cleansing efficiency of the flue gas because of the existence of the water film, and the cleaning efficiency will increase with the increase of the voltage under a definite range of applied voltage. According to this effect a water film electrical corona reactor that we design is used to treat the flue gas of the boiler, and the result shows it not only makes the removal efficiency of dust up to 100%, but also makes about 98% of SO/sub 2/ and 85% of NO/sub x/ removal respectively under suitable conditions. This project is very significant for the prevention of acid rain and the treatment of dust of flue gas and the improvement on the traditional electrical dust precipitator.

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水对烟气电晕放电的影响

本文设计了一种新型的水膜电晕放电实验模型。反应器由针板电极组成，针板电极置于充满烟气的玻璃容器中(板电极浸入水中)。研究了在不同二氧化硫和氮氧化物浓度及不同施加电压条件下，含二氧化硫(SO/sub 2/)和氮氧化物(NO/sub x/)污染烟气中电晕放电的形成机理。在此基础上，重点研究了水对烟气电晕放电的影响。实验结果表明，由于水膜的存在，电晕放电在高压电极与水膜之间形成的电晕风提高了烟气的净化效率，并且在一定的外加电压范围内，净化效率会随着电压的增加而提高。根据这一效果，设计了水膜电晕反应器对锅炉烟气进行处理，结果表明，在适宜的条件下，不仅除尘效率可达100%，而且SO/sub /的去除率可达98%左右，NO/sub /的去除率可达85%左右。该工程对酸雨的防治和烟气粉尘的治理以及对传统电除尘器的改进具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)

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