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山东大学学报 (工学版) ›› 2020, Vol. 50 ›› Issue (6): 118-128.doi: 10.6040/j.issn.1672-3961.0.2019.574

• • 上一篇    

芒刺参数对电晕放电及细颗粒物脱除特性的影响

王磊1,李明臻2,王翔3*   

  1. 1.国网山东省电力公司寿光市供电公司, 山东 寿光 262700;2.中国南方电网广州供电局有限公司越秀供电局, 广州 越秀 510000;3.山东大学燃煤污染物减排国家工程实验室, 山东 济南 250000
  • 发布日期:2020-12-15
  • 作者简介:王磊(1982— ),男,山东淄博人,硕士研究生,主要研究方向为电力系统运行与控制. E-mail:Leiwang@163.com. *通信作者简介:王翔(1989— ),男,山东淄博人,助理研究员,主要研究方向为低温等离子. E-mail: rickwangx@139.com

The effect of barbed electrodes parameters on the discharge characteristics and particles removal efficiency

WANG Lei1, LI Mingzhen2, WANG Xiang3*   

  1. 1.State Grid Shouguang Power Supply Company, State Grid Shandong Electric Power Company, Shouguang 262700, Shandong, China;
    2. Yuexiu Power Supply Bureau, Guangzhou Power Supply Bureau Co., Ltd., Yuexiu 510000, Guangzhou, China;
    3. National Engineering Laboratory for Coal-Fired Pollutants Emission Reduction, Shandong University, Jinan 250061, Shandong, China
  • Published:2020-12-15

摘要: 为研究芒刺电极参数对电晕放电及颗粒物脱除特性的影响,建立静电除尘器机理实验台。在不同电压和颗粒物浓度下,分别研究了芒刺厚度δ和芒刺间距L对电晕电流及PM2.5、PM10脱除效率的影响。结果表明,薄芒刺电极的电晕放电和对各粒径段颗粒物的脱除能力高于厚芒刺电极,其中对粒径为0.2~2 μm的颗粒物的脱除效率提升明显;低电压和高颗粒物浓度时,薄芒刺电极对电晕放电和颗粒物脱除能力的提升尤为明显。随着芒刺间距的减小,电晕电流和颗粒物脱除效率均呈先增大后减小的趋势。芒刺间距为50 mm时,电极的电晕电流最大;芒刺间距为80 mm时,电极对PM2.5、PM10的脱除效率最高。研究结果为静电除尘器中芒刺电极的设计、选型提供了参考依据。

关键词: 电除尘器, 芒刺电极, 芒刺厚度, 芒刺间距, 电晕电流, 细颗粒物

Abstract: To study the effect of design parameters on discharge characteristic and particles removal efficiency of the barbed electrodes, a test bench was built and the discharge current and PM2.5、PM10 removal efficiency of the discharge electrode with various barb thickness δ and spacing L under different applied voltage and dust concentration were studied. The results showed that the thinner barb was better at discharging and removing fine particles than the thicker one, especially for the particles in 0.2~2 μm. The effect of the thinner barb on the particles removal efficiency was dramatically obvious in the case of a lower applied voltages and higher mass concentration. The discharge current and particles removal efficiency firstly increased to the maximum and then decreased with barb spacing decreasing. The discharge current was the largest when the barb spacing was 50 mm, while the particles removal efficiency was highest when the barb spacing was 80 mm. The results could provide references for the selection and design of barbed discharge electrodes in the electrostatic precipitator.

Key words: electrostatic precipitator, barbed electrodes, barb thickness, barb spacing, discharge current, fine particle

中图分类号: 

  • TM89
[1] 闫克平, 李树然, 冯卫强, 等. 高电压环境工程应用研究关键技术问题分析及展望[J]. 高电压技术, 2015, 41(8): 2528-2544. YAN Keping, LI Shuran, FENG Weiqiang, et al. Analysis and prospect on key technology of high-voltage discharge for environmental engineering study and application[J]. High Voltage Engineering, 2015, 41(8): 2528-2544.
[2] 徐纯燕, 常景彩, 王翔, 等. 亲水改性碳钢极板用于PM2.5脱除[J]. 化工学报, 2016, 67(10): 4446-4454. XU Chunyan, CHANG Jingcai, WANG Xiang, et al. Experimental study of PM2.5 removal using hydrophilic modified carbon steel collector[J]. CIESC Journal, 2016, 67(10): 4446-4454.
[3] JAWOREK A, KRUPA A, CZECH T. Modern electrostatic devices and methods for exhaust gas cleaning: a brief review[J]. Journal of Electrostatics, 2007, 65(3): 133-155.
[4] 邓云峰, 刘功智, 张国权. 宽间距长芒刺静电除尘技术的应用[J]. 中国安全科学学报, 2004, 13(10): 41-44. DENG Yunfeng, LIU Gongzhi, ZHANG Guoquan. Application of electrostatic precipitators with wider electrode spacing and longer discharge spine electrode[J]. China Safety Science Journal, 2004, 13(10): 41-44.
[5] 党小庆, 杨春方, 王迪, 等. 电除尘器收尘极板表面电流密度分布实验研究[J]. 重型机械, 2005(2): 32-35. DANG Xiaoqing, YANG Chunfang, WANG Di, et al. Experiment on current density distribution on plate of different combinations of discharge electrodes with collecting plates[J]. Heavy Machinery, 2005(2): 32-35.
[6] 王翔, 常景彩, 徐纯燕, 等. 线-板式静电除尘器芒刺电极放电特性[J]. 高电压技术, 2017, 43(2): 533-540. WANG Xiang, CHANG Jingcai, XU Chunyan, et al. Discharge characteristic of barbed electrodes in wire-plate electrostatic precipitator[J]. High Voltage Engineering, 2017, 43(2): 533-540.
[7] 胡满银, 高香林, 胡志光, 等. 电极结构对放电性能影响的试验研究[J]. 华北电力学院学报, 1988(4): 009. HU Manyin, GAO Xianglin, HU Zhiguang, et al. Research on discharge performances of corona wires in electrostatic precipitators[J]. Journal of North China Institute of Electric Power, 1988(4): 009.
[8] 郭尹亮,向晓东,陈宝智.芒刺-板式电除尘器收尘极板电流密度分布规律研究[J].安全与环境学报,2008,8(6):53-56. GUO Yinliang, XIANG Xiaodong, CHEN Baozhi. Investigation of the current density distribution regularity in a nail-plate ESP[J]. Journal of Safety and Environment, 2008, 8(6): 53-56.
[9] MCKINNEY P J, DAVUDSON J H, LEONE D M. Current distributions for barbed plate-to-plane coronas[J]. IEEE Transactions on Industry Applications, 1992, 28(6): 1424-1431.
[10] GUO B Y, GUO J, YU A B. Simulation of the electric field in wire-plate type electrostatic precipitators[J]. Journal of Electrostatics, 2014, 72(4): 301-310.
[11] 郭尹亮, 向晓东, 盖龄童. 芒刺电除尘器板电流密度分布及芒刺间距优化[J]. 高电压技术, 2010(4): 1021-1025. GUOYinlang, XIANG Xiaodong, GAI Lingtong. Experimental approach on current density distribution and optimizing distance of barb corona electrodes in ESP[J]. High Voltage Engineering, 2010(4): 1021-1025.
[12] JEDRUSIK M, SWIERCZOK A. The correlation between corona current distribution and collection of fine particles in a laboratory-scale electrostatic precipitator[J]. Journal of Electrostatics, 2013, 71(3): 199-203.
[13] JEDRUSIK M, SWIERCZOK A, TEISSEYRE R. Experimental study of fly ash precipitation in a model electrostatic precipitator with discharge electrodes of different design[J]. Powder Technology, 2003, 135: 295-301.
[14] 徐明铭.空气湿度对直流电晕放电影响的研究[D].济南:山东大学,2014. XU Mingming. Study on influences of air humidity on direct current corona discharge[D]. Jinan: Shandong University, 2014.
[15] BESSIERES D, PAILLOL J, SOULEM N. Negative corona triggering in air[J]. Journal of Applied Physics, 2004, 95(8): 3943-3951.
[16] BAYLESS D J, ALAM M K, RADCLIFF R, et al. Membrane-based wet electrostatic precipitation[J]. Fuel Processing Technology, 2004, 85(6): 781-798.
[17] FLAGAN R C, SEINFELD J H. Fundamentals of air pollution engineering[M]. Chicago, USA: CRRC, 2012.
[18] WHITE H J. Industrial electrostatic precipitation[M]. NewYork, USA: Wesley, 1963.
[19] ZHUANG Y, KIM Y J, LEE T G, et al. Experimental and theoretical studies of ultra-fine particle behavior in electrostatic precipitators[J]. Journal of Electrostatics, 2000, 48(3): 245-260.
[20] GOO J H, LEE J W. Monte-Carlo simulation of turbulent deposition of charged particles in a plate-plate electrostatic precipitator[J]. Aerosol Science and Technology, 1996, 25(1): 31-45.
[21] IETAA C, KUCEROVSKY Z, GREASON W D. Current density modeling of a linear pin-plane array corona discharge[J]. Journal of Electrostatics, 2008, 66(11): 589-593.
[22] 郭尹亮, 向晓东, 盖龄童. 芒刺电除尘器板电流密度分布及芒刺间距优化[J]. 高电压技术, 2010, 36(4): 1021-1025. GUO Yinliang, XIANG Xiaodong, GAI Lingtong. Experimental approach on current density distribution and optimizing distance of barb corona electrodes in ESP[J]. High Voltage Engineering, 2010, 369(4): 1021-1025.
[23] 亢燕铭, 荣美丽, 沈恒根, 等. 空气净化过程中的电晕放电与离子风[J]. 自然杂志, 2002, 24(3): 125-129. KANG Yanming, RONG Meili, SHEN Henggen, el at. Corona discharge and ionic wind in air cleaning processes[J]. Chinese Journal of Nature, 2002, 24(3): 125-129.
[24] DAVIDSON J H, SHAUGHNESSY E J. Turbulence generation by electric body forces[J]. Experiments in Fluids, 1986, 4(1): 17-26.
[25] 王晓华. 静电场中水对颗粒物脱除增强机理与过程[D]. 北京: 清华大学, 2013. WANG Xiaohua. Enhancement mechanism and process of water on particle removal in electrostatic filed[D]. Beijing: Tsinghua University, 2011.
[26] 常景彩. 柔性集尘极应用于燃煤脱硫烟气深度净化的试验研究[D]. 济南: 山东大学, 2011. CHANG Jingcai. Experimental study on flexible collection electrode applied in advanced purification for coal-fired flue gas following WFGD[D]. Jinan: Shandong University, 2011.
[27] 熊桂龙, 李水清, 陈晟, 等. 增强PM2.5脱除的新型电除尘技术的发展[J]. 中国电机工程学报, 2015, 35(9): 2217-2223. XIONG Guilong, LI Shuiqing, CHEN Shen, el at. Development of advanced electrostatic precipitation technologies for reducing PM2.5 emissions from coal-fired power plants[J]. Proceedings of the CSEE, 2015, 35(9):2217-2223.
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