中国电力 ›› 2015, Vol. 48 ›› Issue (8): 8-12.DOI: 10.11930.2015.8.8

• 火电厂烟气除尘技术专栏 • 上一篇    下一篇

凝聚器与电除尘器新技术对颗粒物去除效果的试验研究

王东歌123,朱法华23,易玉萍2,刘智4,李枭鸣123,孟令媛1,   

  1. 1. 南京信息工程大学环境科学与工程学院,江苏 南京 210044;#br# 2. 国电环境保护研究院,江苏 南京 210031;#br# 3. 大气环境与装备技术协同创新中心,江苏 南京 210044;#br# 4. 江苏中建材环保研究院有限公司,江苏 盐城 224051
  • 收稿日期:2015-05-13 出版日期:2015-08-25 发布日期:2015-11-25
  • 作者简介:王东歌(1989—),男,江苏连云港人,硕士研究生,从事电力环境保护技术研究。E-mail: 739779543@qq.com
  • 基金资助:
    国家能源局国能科技项目(GNKJ[2013]235号)

Experimental Study on the Effects of Agglomerator and New ESP Technologies on Particulate Removal Efficiency

WANG Dongge123, ZHU Fahua23, YI Yuping2, LIU Zhi4, LI Xiaoming123, MENG Lingyuan13   

  1. 1.Nanjing University of Information Science and Technology, Nanjing 210044, China;#br# 2. State Power Environmental Protection Research Institute, Nanjing 210031, China;#br# 3. Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing 210044, China;#br# 4. Jiangsu CTIEC Environmental Protection Research Institute Co., Ltd., Yancheng 224051, China
  • Received:2015-05-13 Online:2015-08-25 Published:2015-11-25
  • Supported by:
    National Energy Administration (No. GNKJ[2013]235).

摘要: 以中国某135 MW燃煤机组为研究对象,研究凝聚器与电除尘器移动电极、高频电源等新技术对电除尘器出口颗粒物排放的影响。结果显示:凝聚器装置开启后,电除尘器出口总颗粒物和PM2.5排放浓度降幅分别为23.93%~40.16%和39.54%~55.21%;移动电极运行后,电除尘器出口总颗粒物和PM2.5排放浓度降幅分别为25.46%~56.59%和11.68%~33.18%;高频电源放开后,电除尘器出口总颗粒物和PM2.5排放浓度降幅分别为12.81%~21.27%和22.11%~43.11%。试验表明:凝聚器与电除尘器新技术能够显著提高电除尘器的除尘效率,尤其是减少PM2.5的排放,其在除尘设备的改造和升级中会发挥重要作用。

关键词: 燃煤机组, 电除尘器, 凝聚器, 移动电极, 高频电源, 颗粒物, 提效

Abstract: In this paper, the effects of agglomerator and some new ESP technologies(such as mobile electrode duster and high-frequency power supply) on particulate emissions are studied for a 135-MW coal-fired power generating unit. The results show that with the agglomerator being turned on, the concentrations of the total particulate matter and PM2.5 are reduced by 23.93%~40.16% and 39.54%~55.21%, respectively, while with the mobile electrode in operation, the concentrations of the total particulate matter and PM2.5 are decreased by 25.46%~56.59% and 11.68%~33.18%, respectively. Moreover, with the high-frequency power supply being turned on, the concentrations of the total particulate matter and PM2.5 are decreased by 12.81%~21.27% and 22.11%~43.11%, respectively. This experimental study indicates that the agglomerator and the new technologies can significantly improve the collection efficiency of the electrostatic precipitator, especially for the emission reduction of the PM2.5 particles. It is certain that they will play an important role in the innovation and upgrading of dust removal devices.

Key words: coal-fired power generating unit, ESP, agglomerator, moving pole, high-frequency power supply, particulate matter, efficiency improvement

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