Study of Numerical Simulation for Flow Distribution in 200 MW Electrostatic-bag Precipitator With Different Filtration Velocity

doi:10.12096/j.2096-4528.pgt.2018.067

Abstract

Abstract:

Flow distribution in electrostatic-fabric integrated precipitator is one of the most important factors for affecting collection efficiency. The standard k-ε turbulence model was used to simulate flow field distribution at five kinds of filtration velocity. The results show that obvious partition of flow velocity was observed, the high-speed zone was observed at the lower space of the electrostatic precipitator dust bag, the area was minimum when the filtration rate of speed was 1.6 m/min, at the same time, the filter bag narrow stream was observed at the gathering area, which the bag loading unevenness was increased. In the lower region of the bag dust, bag dust chamber area and net cross-sectional area representatives were tested. The unevenness was smallest at 0.8 m/min of filtration velocity, and areas were increasing with speed bag dust increases, but increases with height overall have shown a downward trend.

Key words: electrostatic-fabric integrated precipitator, filtration velocity, numerical simulation

Lidong ZHANG,Tingting GUO,Shaohua LI. Study of Numerical Simulation for Flow Distribution in 200 MW Electrostatic-bag Precipitator With Different Filtration Velocity[J]. Power Generation Technology, 2018, 39(5): 438-442.

References

1	龙辉, 黄晶晶. "十三五"燃煤发电设计技术发展方向分析[J]. 发电技术, 2018, 39 (1): 13- 17.
2	曹国良, 张小曳, 龚山陵, 等. 中国区域主要颗粒物及污染气体的排放源清单[J]. 科学通报, 2011, 56 (3): 261- 268.
3	朱跃. 火电厂"厂界环保岛"改造与运维关键技术[J]. 发电技术, 2018, 39 (1): 1- 12.
4	孙雪丽, 朱法华, 王圣, 等. 燃煤电厂颗粒物超低排放技术路线选择[J]. 环境工程技术报, 2018, 8 (2): 129- 136.
5	王雷. 电袋复合除尘器在除尘改造中的应用[J]. 中国设备工程, 2018, (4): 42- 43.
6	王勇, 徐晓虎. 燃煤电厂除尘器对微细粉尘捕集效率对比试验[J]. 中国环保产业, 2013, (6): 45- 48.
7	修海明. 电袋复合除尘器脱除PM2.5效率的探讨[J]. 中国环保产业, 2013, (10): 46- 49.
8	王圣, 朱法华, 王慧敏, 等. 基于实测的燃煤电厂细颗粒物排放特性分析与研究[J]. 环境科学学报, 2011, 31 (3): 630- 635.
9	Dang Xiaoqin, Shi Yong, Ma Guangda, et al. Research on performance of electrostatic-bag precipitator with comparative industrial tests[C]//1lth International Conference on Electrostatic Precipitation, Hangzhou, China, 2008.
10	刘练波, 许世森, 郜时旺, 等. 燃煤电厂新型静电布袋复合除尘器的开发与气流分布试验研究[J]. 中国电力, 2005, 38 (12): 51- 54.
11	刘练波, 许世森. 静电布袋复合除尘器的试验研究[J]. 动力工程, 2007, 27 (1): 103- 106.
12	涂扬赓, 宋蔷, 涂功铭, 等. 燃煤电厂新型静电布袋复合除尘器的开发与气流分布试验研究[J]. 中国电机工程学报, 2013, 33 (17): 51- 57.
13	Jaworek A , Marchewicz A , Sobczyk A T , et al. Twostage electrostatic precipitators for the reduction of PM2.5 particle emission[J]. Progress in Energy and Combustion Science, 2018, 44 (3): 206- 233.
14	陈奎续. 电袋复合除尘+湿法脱硫工艺脱除多污染物的效果研究[J]. 环境污染与防治, 2018, 40 (4): 398- 403.
15	Chen Jun, Han Xu.Numerical simulation on a hybrid electrostatic-bag precipitator[C]//11th International Conference on Electrostatic Precipitation.Hangzhou, China, 2008.
16	郝欢, 闫东杰, 张仕鼎, 等. 基于数值模拟的电袋复合除尘器入口流速和管道结构优化[J]. 环境污染与防治, 2017, 39 (12): 1343- 1347.
17	刘栋栋, 叶兴联, 李立锋, 等. 电袋复合除尘器气流分布的数值模拟和优化[J]. 环境工程学报, 2017, 11 (5): 2897- 2902.
18	孙超凡, 彭泽宏, 郑华昌, 等. 1000 MW级机组电袋复合除尘特性三维数值模拟研究[J]. 中国电机工程学报, 2015, 35 (20): 5258- 5264.

[1]	Nan TU, Jiachen LIU, Jing XU, Jiabin FANG, Yanhua MA. Performance Analysis of Heat Storage and Release Process for a Shell-and-Tube Phase Change Heat Exchanger [J]. Power Generation Technology, 2024, 45(3): 508-516.
[2]	Xue LIU, Guodong LI, Ruiying ZHANG, Yichen HOU, Lei CHEN, Lijun YANG. Research on Axial Flow Fan Models of Air Cooling Island in Power Plant [J]. Power Generation Technology, 2024, 45(3): 545-557.
[3]	Siqi GONG, Zaipeng YUN, Ming XU, Le AO, Chufu LI, Kai HUANG, Chen SUN. Numerical Simulation of Solid Oxide Fuel Cell Tail Gas Catalytic Combustion Based on Three-Way Catalyst [J]. Power Generation Technology, 2024, 45(2): 331-340.
[4]	Yang YANG, Yaoqiang LI, Jinqi ZHANG. Design of Dome Structure for A Lean Premixed Swirled Combustor of Gas Turbine Based on the Numerical Method [J]. Power Generation Technology, 2023, 44(5): 712-721.
[5]	Yang YANG, Desan GUO, Yaoqiang LI, Jinqi ZHANG. Design of Lean Premixed Multi-Swirl Combustor Dome Structure for Gas Turbine [J]. Power Generation Technology, 2023, 44(2): 183-192.
[6]	Wenbin LIU, Lulu LI, Xiaojin LI, Xuan YAO, Hairui YANG. Study on Parameter Optimization of Desulfurized Wet Flue Gas in Spray Condensation Process [J]. Power Generation Technology, 2023, 44(1): 107-114.
[7]	Ronghui WU, Dong LIU, Ye YU, Kailong MU, Lanhao ZHAO. Two-Way Fluid-Structure Interaction Numerical Simulation Method for Offshore Wind Power Based on Immersed Boundary Method [J]. Power Generation Technology, 2023, 44(1): 44-52.
[8]	Hongyi ZHANG, Litao QU. Research and Application of Numerical Simulation for Selective Catalytic Reduction Denitration of 9F Gas Turbine [J]. Power Generation Technology, 2023, 44(1): 78-84.
[9]	Wenjun KONG, Yansen ZHANG, Xiaoping TANG, Weikuo ZHANG. Study on Heat Production Characteristics of Lithium-ion Batteries for Large Capacity Energy Storage [J]. Power Generation Technology, 2022, 43(5): 801-809.
[10]	Zexu WANG, Bingchen LI, Yao XU, Qian LIU, Kaixuan LI, Xing JU. Lithium-ion Battery Thermal Management System Based on the Combination of Supercooled Phase Change Material and Thermal Switch [J]. Power Generation Technology, 2022, 43(2): 328-340.
[11]	Zhirong LIAO, Pengda LI, Ziqian TIAN, Chao XU, Gaosheng WEI. Heat Transfer Enhancement of a Cascaded Latent Heat Thermal Energy Storage System by Fins With Different Uneven Layouts [J]. Power Generation Technology, 2022, 43(1): 83-91.
[12]	Chunxi DAI, Ping LIANG, Deyong CHE, Haiting LIU. Study on Flow Characteristics in Honeycomb Tube Wet Electrostatic Precipitator [J]. Power Generation Technology, 2022, 43(1): 155-159.
[13]	Yaonan GAO, Haifeng CHEN, Jianyong WANG. Thermodynamic Analysis of a New Combined Cooling, Heating and Power System Using CO₂ Working Fluid [J]. Power Generation Technology, 2022, 43(1): 131-138.
[14]	Li WANG, Zhi ZHANG, Yaolu SHI, Chao XU, Jie SUN. Research Progress of Parabolic Trough Solar Collector Based on Numerical Simulation [J]. Power Generation Technology, 2021, 42(6): 643-652.
[15]	Feng ZHAO, Mingxing SUN, Zhefeng HAO, Deyong CHE. Structure Optimization of Cyclone Separator Based on Computational Particle Fluid Dynamics [J]. Power Generation Technology, 2021, 42(5): 637-642.