发电技术 ›› 2023, Vol. 44 ›› Issue (1): 94-99.DOI: 10.12096/j.2096-4528.pgt.21055

• 发电及环境保护 • 上一篇    下一篇

超低排放机组湿式电除尘器多污染物减排及能效测试研究

刘含笑, 郭高飞, 陈招妹   

  1. 浙江菲达环保科技股份有限公司,浙江省 诸暨市 311800
  • 收稿日期:2022-02-28 出版日期:2023-02-28 发布日期:2023-03-02
  • 作者简介:刘含笑(1987),男,硕士,高级工程师,主要从事电力环保技术研发工作,gutounan@163.com
    郭高飞(1987),男,工程师,主要从事气力输送技术设计及相关环保技术研发工作;
    陈招妹(1969),女,硕士,教授级高级工程师,研究方向为湿式电除尘器、工业烟气重金属及SO3脱除技术等。
  • 基金资助:
    国家重点研发计划项目(2016YFC0209107)

Study on WESP Multi-pollutant Emission Reduction and Energy Efficiency Test of Ultra-low Emission Unit

Hanxiao LIU, Gaofei GUO, Zhaomei CHEN   

  1. Zhejiang Feida Environmental Science & Technology Co. , Ltd. , Zhuji 311800, Zhejiang Province, China
  • Received:2022-02-28 Published:2023-02-28 Online:2023-03-02
  • Supported by:
    Natonnal Key R&D Program of China(2016YFC0209107)

摘要:

湿式电除尘器(wet electrostatic precipitator,WESP)是燃煤烟气治理的精处理设备,以某660 MW超低排放机组配套金属板式湿式电除尘器为研究对象,对湿式电除尘器的多污染物脱除性能和能效参数开展系统测试研究和分析。湿式电除尘器对颗粒物、雾滴、SO3和Hg的脱除效率分别为81.12%、75.60%、76.13%、53.08%,电耗为402.6 (kW·h)/h,满足设计要求。各污染物排放质量浓度分别为4.20、17.25、9.80、4.08×10-4 mg/m3,排放因子分别为13.76、56.49、32.10、1.34×10-3 g/(kW·h),比电耗为1.48×10-4 (kW·h)/m3,单位质量颗粒物脱除能耗为22.87 (kW·h)/kg,均处于行业平均水平。研究结果可为燃煤电厂后续污染物减排和能效控制提供借鉴。

关键词: 湿式电除尘器(WESP), 燃煤电厂, 污染物减排, 脱除效率, 能效指标

Abstract:

Wet electrostatic precipitator (WESP) is a fine treatment equipment for the treatment of coal flue gas. Taking a 660 MW ultra-low emission unit as the research object, the multi-pollutant removal performance and energy efficiency parameters of WESP were tested and analyzed systematically. The removal efficiencies of particulate matter, fog drop, SO3 and Hg of WESP were 81.12%, 75.60%, 76.13% and 53.08%, respectively, and the power consumption was 402.6 (kW·h)/h, which met the design requirements. The emission mass concentration of each pollutant were 4.20, 17.25, 9.80, 4.08×10-4 mg/m3, respectively, the emission factors were 13.76, 56.49, 32.10, 1.34×10-3 g/(kW·h),respectively, the specific power consumption was 1.48×10-4 (kW·h)/m3.The energy consumption for particle removal per unit mass was 22.87 (kW·h)/kg, which was in the industry average level. This study can provide reference for the subsequent pollutant reduction and energy efficiency control of coal-fired power plants.

Key words: wet electrostatic precipitator (WESP), coal-fired power plant, pollutant emission reduction, removal efficiency, indicators of energy efficiency

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