基于电湍耦合凝并机制的PM2.5捕集增效装置的开发及应用

doi:10.11930/j.issn.1004-9649.201711003

中国电力 ›› 2018, Vol. 51 ›› Issue (6): 17-25.DOI: 10.11930/j.issn.1004-9649.201711003

• 燃煤电站低成本超低排放技术专栏 • 上一篇下一篇

基于电湍耦合凝并机制的PM_2.5捕集增效装置的开发及应用

李宁¹, 袁伟锋², 刘含笑², 赵琳², 许东旭², 骆建友², 郭滢²

1. 国核电力规划设计研究院有限公司, 北京 100095;
2. 浙江菲达环保科技股份有限公司, 浙江诸暨 311800

收稿日期:2017-10-28 修回日期:2018-02-08 出版日期:2018-06-05 发布日期:2018-06-12
通讯作者: 刘含笑(1987-),男,通信作者,硕士,高级工程师,从事电除尘技术研发工作,E-mail:gutounan@163.com
作者简介:李宁(1974-),男,高级工程师,从事发电厂燃料输送系统设计及工程管理工作,E-mail:496148054@qq.com;袁伟锋(1979-),男,高级工程师,从事环保装备设计、研究及行业标准化工作,E-mail:yuanweifeng615@163.com
基金资助:
国家重点研发计划资助项目（2016YFC0203704，2017YFB0603202）；国家高技术研究发展计划资助项目（2013AA065002）。

Development and Application of PM_2.5 Trapping and Removal Device Based on Turbulence Coupled with Bipolar-charged Particle Coagulation

LI Ning¹, YUAN Weifeng², LIU Hanxiao², ZHAO Lin², XU Dongxu², LUO Jianyou², GUO Ying²

1. State Nuclear Electric Power Planning Design & Research Institute Co., Ltd., Beijing 100095, China;
2. Zhejiang Feida Environmental Science & Technology Co., Ltd., Zhuji 311800, China

Received:2017-10-28 Revised:2018-02-08 Online:2018-06-05 Published:2018-06-12
Supported by:
This work is supported by National Key Research and Development Program of China(No.2016YFC0203704, No.2017YFB0603202) and National High Technology Research and Development Program of China(No.2013AA065002).

摘要/Abstract

摘要： 常规电除尘器存在PM_2.5荷电困难的技术瓶颈，电湍耦合凝并技术可经济高效实现PM_2.5凝并，帮助电除尘器对PM_2.5高效脱除，在众多颗粒凝并技术中工程应用价值最高。对烟道PM_2.5捕集增效装置进行结构优化，确定双极荷电区、湍流聚合区关键部件结构及主要参数，总烟尘可减排20.3%，PM_2.5减排30.1%；研发出封头PM_2.5捕集增效装置，确定双极异性荷电颗粒最佳掺混方案，总尘可减排17.3%；与旋转电极+低低温电除尘器耦合后，PM_2.5可减排37%；多种布置及组合方式，可灵活适应工程实际条件的不同需求，满足燃煤电厂PM_2.5治理的环保急需。

关键词: 燃煤电厂, 电除尘器, PM_2.5, 颗粒凝并, 双极荷电, 湍流

Abstract: Regarding the technical bottleneck as difficulty in PM_2.5 particle charging in conventional electrostatic precipitator (ESP), the particle coalescence technique based on turbulence coupled with bipolar-charged mechanism can promote the PM_2.5 coalescence economically and efficiently, which is of great help for ESP to remove PM_2.5 effectively. Apparently it has the highest engineering application value among a variety of particle coalescence technologies. In this paper, the structural optimization of gas duct PM_2.5 trapping and removal device are carried out, then the key components structure and the main parameters of bipolar charged area and turbulent aggregation area are determined. The total flue dust can be reduced by 20.3%, and PM_2.5 emissions can be reduced by 30.1%. In addition, the PM_2.5 trap synergistic device are developed and the best mixing scheme for bipolar charged particles are determined. The total dust can be reduced by 17.3%. After coupling with low-low temperature electrostatic precipitators with rotating electrodes, PM_2.5 can be reduced by 37%. The multi-clock arrangement and combination mode can flexibly adapt to the different requirements of the actual engineering conditions, and meet the urgent requirements of environmental protections for PM_2.5 management of coal-fired power plants.

Key words: coal-fired Power, ESP, PM_2.5, particle coalescence, bipolar-charged, turbulence

中图分类号:

X773
TM621

李宁, 袁伟锋, 刘含笑, 赵琳, 许东旭, 骆建友, 郭滢. 基于电湍耦合凝并机制的PM_2.5捕集增效装置的开发及应用[J]. 中国电力, 2018, 51(6): 17-25.

LI Ning, YUAN Weifeng, LIU Hanxiao, ZHAO Lin, XU Dongxu, LUO Jianyou, GUO Ying. Development and Application of PM_2.5 Trapping and Removal Device Based on Turbulence Coupled with Bipolar-charged Particle Coagulation[J]. Electric Power, 2018, 51(6): 17-25.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201711003

https://www.electricpower.com.cn/CN/Y2018/V51/I6/17

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基于电湍耦合凝并机制的PM_2.5捕集增效装置的开发及应用

Development and Application of PM_2.5 Trapping and Removal Device Based on Turbulence Coupled with Bipolar-charged Particle Coagulation

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基于电湍耦合凝并机制的PM2.5捕集增效装置的开发及应用

Development and Application of PM2.5 Trapping and Removal Device Based on Turbulence Coupled with Bipolar-charged Particle Coagulation

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基于电湍耦合凝并机制的PM_2.5捕集增效装置的开发及应用

Development and Application of PM_2.5 Trapping and Removal Device Based on Turbulence Coupled with Bipolar-charged Particle Coagulation