湿式电除尘器SO3、HCl、HF脱除效率试验研究

doi:10.11930/j.issn.1004-9649.201803020

中国电力 ›› 2018, Vol. 51 ›› Issue (12): 170-174.DOI: 10.11930/j.issn.1004-9649.201803020

湿式电除尘器SO₃、HCl、HF脱除效率试验研究

王贵华^1,2, 朱斌帅^1,2, 张海珍¹, 韩海燕¹

1. 华电电力科学研究院有限公司, 浙江杭州 310030;
2. 杭州华电能源工程有限公司, 浙江杭州 310030

收稿日期:2018-03-06 修回日期:2018-07-10 出版日期:2018-12-05 发布日期:2018-12-13
作者简介:王贵华(1979-),男,博士,从事火电节能环保技术研究,E-mail:guihuawang007@sina.com;朱斌帅(1985-),男,高级工程师,从事火电节能环保技术研究,E-mail:binshuai-zhu@chder.com
基金资助:
中国华电集团科技项目（330 MW燃煤机组湿法电除尘器协同脱除PM_2.5技术及示范工程，CHDKJ13-01-41）。

Experimental Study on SO₃, HCl and HF Removal Efficiency of Wet Electrostatic Precipitator

WANG Guihua^1,2, ZHU Binshuai^1,2, ZHANG Haizhen¹, HAN Haiyan¹

1. Huadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, China;
2. Hangzhou Huadian Energy Engineering Co., Ltd., Hangzhou 310030, China

Received:2018-03-06 Revised:2018-07-10 Online:2018-12-05 Published:2018-12-13
Supported by:
This work is supported by Technology Project of China Huadian Corporation Ltd. (Synergistic Removal of PM_2.5 Technology and Demonstration Project by Wet Electrostatic Precipitator in 330 MW Coal-fired Unit, No.CHDKJ13-01-41).

摘要/Abstract

摘要： 燃煤电厂湿法脱硫后烟气中含有SO₃、HCl、HF等强腐蚀性物质，虽然含量不高，但对烟囱抗腐蚀性能提出了更高的要求。湿法脱硫后加装湿式电除尘器，对SO₃、HCl、HF等有一定的脱除效果，为研究湿式电除尘器对其脱除效率，在某电厂330 MW机组金属极板式湿式电除尘器进出口对烟气进行采样，检测SO₃、HCL、HF的浓度，得出湿式电除尘器对这些强腐蚀性酸性气体的脱除效率分别为45%、85%及65%左右。结果表明湿式电除尘器可有效脱除烟气中的腐蚀性气体，降低其在烟囱入口浓度，因而可减缓烟囱腐蚀。

关键词: 燃煤电厂, 湿法脱硫, 湿式电除尘器, SO₃, HCl, HF, 脱除效率

Abstract: In coal-fired power plants, the flue gas after wet desulphurization still contains strong corrosive substances such as SO₃, HCl, HF and so on. Higher requirements are put forward for the corrosion resistance of the chimney even though the content is not that high. The wet electrostatic precipitator installed after the desulphurization has certain removal effect for the corrosive substances. In order to study the removal efficiency of wet electrostatic precipitator, samples were taken from the inlet and outlet flue gas of a metal plate type wet precipitator in a 330 MW unit of a power plant to detect the concentration of SO₃, HCl and HF. It is concluded that the removal efficiency of the wet electrostatic precipitator for the strong corrosive acid gases was 45%, 85% and 65%, respectively. The results show that the wet electrostatic precipitator can effectively remove the corrosive gas in the flue gas and reduce its concentration at the inlet of the chimney, and therefore the corrosion rate of chimney can be slowed down.

Key words: coal-fired power plant, wet desulfurization, wet electrostatic precipitator, SO₃, HCl, HF, removal efficiency

中图分类号:

TM621.9
X51

王贵华, 朱斌帅, 张海珍, 韩海燕. 湿式电除尘器SO₃、HCl、HF脱除效率试验研究[J]. 中国电力, 2018, 51(12): 170-174.

WANG Guihua, ZHU Binshuai, ZHANG Haizhen, HAN Haiyan. Experimental Study on SO₃, HCl and HF Removal Efficiency of Wet Electrostatic Precipitator[J]. Electric Power, 2018, 51(12): 170-174.

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湿式电除尘器SO₃、HCl、HF脱除效率试验研究

Experimental Study on SO₃, HCl and HF Removal Efficiency of Wet Electrostatic Precipitator

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