[1]王为术,上官闪闪,路统.600MW燃煤锅炉SCR系统烟道导流板设计[J].郑州大学学报(工学版),2015,36(04):37-40.[doi:10.3969/ j.issn.1671 -6833.2015.04.009]
　WANG Wei-shu,SHAGN GUAN Shan-shan,LU Tong,et al.Design of Splitters in Flue of SCR System for a 6U Mw Coal-fired Boiler[J].Journal of Zhengzhou University (Engineering Science),2015,36(04):37-40.[doi:10.3969/ j.issn.1671 -6833.2015.04.009]
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600MW燃煤锅炉SCR系统烟道导流板设计()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36卷
期数:
2015年04期
页码:
37-40
栏目:
出版日期:
2015-08-31

文章信息/Info

Title:
Design of Splitters in Flue of SCR System for a 6U Mw Coal-fired Boiler
作者:
王为术; 上官闪闪; 路统
1.华北水利水电大学热能工程研究中心,河南郑州450011; 2.大唐安阳发电有限责任公司,河南安阳455004;3.深圳粤能环保再生能源有限公司,广东深圳518111
Author(s):
WANG Wei-shu1;  SHAGN GUAN Shan-shan1; LU Tong1 ; YANG Zhi-feng2 ; ZHENG Chun-xiong1; CHEN Gang1
1.Institute of Thermal Engineering，North China University of Water Resources and Electric Power ,Zhengzhou 4500011, Chi-na; 2. Datang Anyang Power Generation Co. Ld，Anyang 455004， China ; 3.Shenzhen Yueneng Environmental Renewable Co.Ltd ，Shenzhen 518111 ，China
关键词:
SCR; 流场; 导流装置; 优化
Keywords:
SCR;  flow field ;  splitters;  optimization
DOI:
10.3969/ j.issn.1671 -6833.2015.04.009
文献标志码:
A
摘要:
基于FLUENT 6.3软件对600 MW燃煤锅炉烟气选择性催化还原(Selective Catalytic Reduction,SCR)脱硝系统的导流优化设计进行数值模拟研究.研究结果表明:无导流装置下,因烟道截面变化及弯头偏转,SCR系统流场出现严重不均,AIG下游截面两侧速度差达 15 m/s ,反应器入口速度偏差为31.25% ,且尾部烟道内流场不均,影响下游设备运行.设计合理的导流板可有效改善烟道流场分布;入口大小头处加装两组纵向导流板使AIG下游截面速度偏差减小为15%，反应器入口截面速度偏差降为13 % ;弯头处的导流板加装延伸导流段,可对下游流场起到良好的均流效果.
Abstract:
Based on FLUENT6.3 software，the simulation and analysis were applied to the optimization designof splitters in Selective Catalytic Reduction ( SCR ) denitrification system for a 600MW coal-fired boiler. Theresults show that because of variable cross-section and deflection in flue,flow field in the system appears non-uniform severely when there is no splitters. The velocity difference on two sides of the section at AlG lowerreaches is up to 15 m/s，the velocity deviations in the reactor inlet is 31.25% , and the flow field is poor intail flue，which affects the operation of downstream equipments.Reasonable splitters can improve flow field influe effectively. After equipping the transition pipe of the inlet with two group of longitudinal splitters, the ve-locity deviations in section at AIG lower reaches is reduced to 15% and in the reactor inlet is reduced to 13% .Splitters in elbow is equipped with an extension for guiding，which have a good effect on homogenization of thedownstream flow field.

参考文献/References:

[1]杨超,张杰群,郭婷婷． SCR烟气脱硝装置烟气流场数值模拟[J]．东北电力大学学报, 2012,32 ( 1) :66 -70.

[2]贾兴豪,弯管导流结构的优化和数值模拟研究[ D]．重庆:重庆大学资源及环境科学学院，2011.
[3]张彦军,高翔,骆仲涣,等． SCR脱硝系统入口烟道设计模拟研究[J]．热力发电,2007, 36 ( 1 ) : 15 -17,23.

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