RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT

LIU Pengyu; LI Debo; LIU Yanfeng; QUE Zhengbin; MIAO Jianjie; CHEN Zhaoli

doi:10.13205/j.hjgc.202210029

Volume 40 Issue 10

Oct. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(10): 224-232

ZHANG Xinwen, WANG Rongzhen, FENG Chengye, ZHANG Wenzhi, XU Zhenghe. RAPID START-UP AND STABILITY OF PARTIAL NITRIFICATION FOR DOMESTIC SEWAGE[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 9-14. doi: 10.13205/j.hjgc.202210002

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LIU Pengyu, LI Debo, LIU Yanfeng, QUE Zhengbin, MIAO Jianjie, CHEN Zhaoli. RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 224-232. doi: 10.13205/j.hjgc.202210029

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RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT

doi: 10.13205/j.hjgc.202210029

1. China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd, Guangzhou 510663, China;
2. China Southern Grid Power Technology Co., Ltd, Guangzhou 510080, China;
3. School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China;
4. National Engineering Laboratory of Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China

Received Date: 2021-11-13

Abstract

Abstract

After the ultra-low emission transformation of China's active coal-fired power plants, the NO_x emission of some of them doesn't meet the standard. In order to solve the practical problems of the projects in coal-fired power plants, we summarized the research status of numerical simulation of SCR denitration system in coal-fired power plants. The research shows that in order to further improve the accuracy of numerical simulation of SCR denitration system, non-uniform flue gas inlet boundary conditions and coke combustion model based on ash layer suppression should be adopted; the relationship between the thickness of the deflector and the flue gas flow characteristics in the flue should be considered in the reconstruction of the deflector; the transformation of the ammonia injection system and mixer is an important reason for the high transformation cost and induced draft fan energy consumption. The comparative study between the engineering transformation and the increased cost of energy consumption after the transformation and the cost saved on catalyst will be a hot research direction in the future. The technical route for the engineering transformation of SCR denitration system in coal-fired power plants is proposed, which can provide theoretical guidance and technical support for the engineering practice.
- coal-fired power plant,
- numerical simulation,
- SCR denitrification system,
- deflector,
- ammonia injection optimization,
- mixer

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References

[1]	李德波,刘鹏宇,刘彦丰,等.新型电力系统规划下燃煤电厂锅炉机组的发展[J/OL].广东电力:1-13(2021-09-23 )[2021-11-12].https://kns-cnki-net.webvpn.ncepu.edu.cn/kcms/detail/44.1420.tm.20210920.0232.002.html.
[2]	KUBIK M L, COKER P J, BARLOW J F. Increasing thermal plant flexibility in a high renewables power system[J].Applied Energy, 2015,154:102-111.
[3]	吕清刚,李诗媛,黄粲然.工业领域煤炭清洁高效燃烧利用技术现状与发展建议[J].中国科学院院刊,2019,34(4):392-400.
[4]	王临清,朱法华,赵秀勇.燃煤电厂超低排放的减排潜力及其PM_2.5环境效益[J].中国电力,2014,47(11):150-154.
[5]	贾林权,韩志杰,任锐,等.SCR脱硝系统新型侧进侧出连接烟道布置及优化[J].热力发电,2017,46(4):105-110.
[6]	发展改革委环境保护部能源局关于印发《煤电节能减排升级与改造行动计划(2014-2020年)》的通知[J].中华人民共和国国务院公报,2015(5):65-71.
[7]	杨玮,李文秀,郭富德,等.330 MW发电机组贫煤燃烧NO_<em>x排放特性及控制[J].洁净煤技术,2017,23(6):107-112.
[8]	周新雅.大型燃煤电站锅炉低氮燃烧技术分析及应用策略[J].华东电力,2003(10):6-12.
[9]	李德波,徐齐胜,李方勇,等.对冲旋流燃烧煤粉锅炉高温腐蚀现场试验与改造的数值模拟研究[J].广东电力,2015,28(11):6-12.
[10]	刘鹏宇,李德波,刘彦丰,等.燃煤电厂锅炉机组受热面积灰结渣研究现状与展望[J/OL].洁净煤技术:1-13(2021-07-23 )[2021-11-12].http://kns.cnki.net/kcms/detail/11.3676.TD.20210722.1819.004.html.
[11]	赵大周,李允超,郑文广,等.省煤器出口加挡板对除灰性能影响的数值模拟[J].环境工程学报,2017,11(9):5104-5108.
[12]	刘鹏宇,李德波,刘彦丰,等.单个低NO_<em>x旋流燃烧器燃烧特性数值模拟研究与工程应用[J/OL].洁净煤技术:1-15(2021-10-15 )[2021-11-12].http://kns.cnki.net/kcms/detail/11.3676.TD.20211015.0010.002.html.
[13]	李道林,王文欢,潘卫国.600 MW墙式对冲燃煤锅炉燃烧数值模拟[J].动力工程学报,2020,40(2):110-116.
[14]	徐启,邢嘉芯,张梦竹,等.低NO_<em>x旋流燃烧器燃烧特性数值模拟[J].科学技术与工程,2020,20(20):8168-8174.
[15]	刘国富,沈德魁,肖睿.基于流场诊断的燃煤电站SCR系统喷氨优化及试验验证[J].东南大学学报(自然科学版),2017,47(1):98-106.
[16]	孟文宇,魏绍青,王菁,等.330 MW燃煤发电机组SCR脱硝系统催化剂磨损原因分析[J].锅炉技术,2018,49(1):10-16 ,21.
[17]	王福军.计算流体动力学分析-CFD软件原理与应用[M].北京:清华大学出版社,2004:7-11.
[18]	刘鹏宇,李德波,刘彦丰,等.燃煤电厂煤粉燃烧焦炭燃烧模型分析与展望[J/OL].洁净煤技术:1-13(2021-09-02 )[2021-11-08].http://kns.cnki.net/kcms/detail/11.3676.td.20210902.1606.004.html.
[19]	WILLIAMS A, BACKREEDY R, HABIB R, et al. Modelling coal combustion:the current position[J]. Fuel, 2002, 81(5):605-618.
[20]	BHATIA S K, PERLMUTTER D. A random pore model for fluid-solid reactions:Ⅰ. Isothermal, kinetic control (p 379-386)[J]. Aiche Journal, 2010, 26(3):379-386.
[21]	贾永会,闫慧博,杜建桥,等.基于灰层累积的焦炭燃烧缩核模型FLUENT数值模拟研究[J].热科学与技术,2020,19(5):495-502.
[22]	王潜龙,汪小憨,曾小军,等.多孔焦炭燃烧特性的模型构建及数值模拟[J].工程热物理学报,2012,33(1):167-170.
[23]	黄俊,李兴磊,阮斌,等.基于数值模拟的某300 MW燃煤电站SCR脱硝系统流场优化研究[J/OL].洁净煤技术:1-9(2021-08-10 )[2021-11-13].http://kns.cnki.net/kcms/detail/11.3676.TD.20210810.1041.004.html.
[24]	李壮扬,苏乐春,宋子健,等.660 MW燃煤机组SCR流场模拟优化与喷氨优化运行[J].洁净煤技术,2017,23(4):47-52 ,11.
[25]	朱天宇,李德波,方庆艳,等.燃煤锅炉SCR烟气脱硝系统流场优化的数值模拟[J].动力工程学报,2015,35(6):481-488 ,508.
[26]	周英贵,金保昇.基于非均匀入口条件SCR系统气固相组分的分布特性优化[J].环境工程学报,2017,11(1):421-426.
[27]	GB/T 34339-2017, 燃煤烟气脱硝喷氨混合系统[S].
[28]	苑广存.500 MW机组脱硝系统喷氨格栅优化设计[J].锅炉技术,2019,50(6):8-12.
[29]	高畅,金保昇,张勇,等.非均匀入口条件下SCR脱硝系统精准喷氨策略[J].东南大学学报(自然科学版),2017,47(2):271-276.
[30]	王朝阳,陈鸿伟,程凯,等.双变截面SCR脱硝系统速度场及浓度场优化研究[J].动力工程学报,2019,39(5):380-386.
[31]	宋绍伟,赵虎军,丁先,等.660 MW机组SCR装置精细化喷氨改造研究[J].华北电力大学学报(自然科学版),2020,47(3 ):75-82.
[32]	杨立坤,刘训良,童云宇,等.SCR脱硝工艺静态混合器优化研究[J].中国电机工程学报,2020,40(22):7352-7365.
[33]	耿宣,汪洋,王凯亮.W火焰锅炉脱硝系统流场CFD优化研究[J/OL].洁净煤技术:1-9(2020-10-28 )[2021-11-13].http://kns.cnki.net/kcms/detail/11.3676.td.20211027.1701.004.html.
[34]	李源,毛睿,任利明,等.非均匀来流条件下SCR系统静态混合器布置及喷氨优化数值模拟研究[J].热能动力工程,2021,36(6):78-85.
[35]	叶兴联,杨丁,郭俊,等.SCR脱硝超低排放工程改造流场优化[J].环境工程学报,2018,12(6):1725-1732.

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