湿式电除尘器在燃煤电厂的应用及其对PM2.5的减排作用

doi:10.11930/j.issn.1004-9649.2013.11.62.3

中国电力 ›› 2013, Vol. 46 ›› Issue (11): 62-65.DOI: 10.11930/j.issn.1004-9649.2013.11.62.3

湿式电除尘器在燃煤电厂的应用及其对PM_2.5的减排作用

莫华¹, 朱法华², 王圣², 易玉萍²

1. 环境保护部环境工程评估中心,北京 100012; 2. 国电环境保护研究院,江苏南京 210031

收稿日期:2013-08-23 出版日期:2013-11-23 发布日期:2015-12-10
作者简介:莫华（1969—）,女,云南文山人,高级工程师,从事建设项目环境影响技术评估工作。
基金资助:
国家科技支撑计划资助项目（2012BAC20B1003）; 环保公益性行业科研专项（201209001）

Application of WESP in Coal-Fired Power Plants and Its Effect on Emission Reduction of PM_2.5

MO Hua¹, ZHU Fa-hua², WANG Sheng², YI Yu-ping²

1. Appraisal Center for Environment & Engineering, Ministry of Environmental Protection, Beijing 100012, China; 2. State Power Environmental Protection Research Institute, Nanjing 210031, China

Received:2013-08-23 Online:2013-11-23 Published:2015-12-10

摘要/Abstract

摘要： 湿式电除尘器（WESP）在发达国家运用效果很好,为能够借鉴国外经验,促进我国电力行业PM_2.5的减排,从湿式除尘器原理出发,对国内外应用情况进行了比较,对湿式电除尘器的技术经济进行了分析,并详细论证了湿式电除尘器对电力行业PM_2.5的减排效果。国外的运行经验表明：WESP能够较好地减少细颗粒物PM_2.5的排放,烟尘排放浓度可控制在10 mg/m³以下,酸雾去除率超过95%,对汞的控制效果也很明显。国内有几家电厂已成功投运或正在建设。监测数据表明,对一次PM_2.5、SO₃和Hg的去除率分别在85%、70%和60%左右。京津冀、长三角、珠三角的重点控制区中按2亿kW的煤电机组加装WESP测算,每年可减少PM_2.5排放约63.8万t。

关键词: 燃煤发电厂, 湿式电除尘器, PM2.5, 减排

Abstract: The wet electro static precipitator(WESP) has been used successfully in developed countries. In order to borrow the excellent experience abroad and promote the emission-reduction of PM_2.5 from the power sector in China, the paper analyzes the principle of WESP, and compares the applications between China and abroad with the technical economics of WESP analyzed. In addition, the contribution of WESP to the reduction of PM_2.5 from the power sector is also demonstrated in details. The foreign operation experience indicates that not only has the number of PM_2.5 particles been decreased effectively, but also the dust emission concentration is controlled below 10 mg/m³ as well as over 95% of the acid fog removal rate and remarkable achievement on Hg control. WESP has been put into operation successfully or is being constructed in some power plants in China. The monitor data show that the removal rate of PM_2.5, SO₃ and Hg is about 85%, 70% and 60% respectively. If WESP is installed in the 200-GW coal-fired generating units in the key pollutant control regions of Beijing—Tianjin—Hebei area, Yangtze River Delta and Pearl River Delta, 638 thousand tons of PM_2.5 can be reduced annually.

Key words: coal-fired power plant, WESP, PM2.5, emission-reduction

中图分类号:

TM621.7⁺3

莫华, 朱法华, 王圣, 易玉萍. 湿式电除尘器在燃煤电厂的应用及其对PM_2.5的减排作用[J]. 中国电力, 2013, 46(11): 62-65.

MO Hua, ZHU Fa-hua, WANG Sheng, YI Yu-ping. Application of WESP in Coal-Fired Power Plants and Its Effect on Emission Reduction of PM_2.5[J]. Electric Power, 2013, 46(11): 62-65.

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https://www.electricpower.com.cn/CN/Y2013/V46/I11/62

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湿式电除尘器在燃煤电厂的应用及其对PM_2.5的减排作用

Application of WESP in Coal-Fired Power Plants and Its Effect on Emission Reduction of PM_2.5

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湿式电除尘器在燃煤电厂的应用及其对PM2.5的减排作用

Application of WESP in Coal-Fired Power Plants and Its Effect on Emission Reduction of PM2.5

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湿式电除尘器在燃煤电厂的应用及其对PM_2.5的减排作用

Application of WESP in Coal-Fired Power Plants and Its Effect on Emission Reduction of PM_2.5