660MW电厂SCR脱硝系统导流板协调优化
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摘要
采用Fluent软件对山东某电厂660 MW燃煤机组SCR脱硝系统进行数值模拟.以不同导流板数量及形状对SCR系统的流场进行协调优化处理,得出比较适合的导流板数量、形状及系统的最佳流场分布.最后对安装了整流器的反应器前后的流场进行了比较与分析,为在工程实际中的导流板整流器的合理设计与安装等提供参考.
Using FLUENT software to simulate the SCR denitrification system of 650 MW coal fired unit in a power plant in Shandong. The flow field of SCR system was optimized by the number and shape of different guide plates,to obtain the appropriate number and shape of guide plates and the optimal flow field distribution.Finally,the flow field of the reactor is compared and analyzed before and after the reactor is installed,in order to provide reference value for the reasonable design and installation of the guide plate and rectifier in engineering practice.
Using FLUENT software to simulate the SCR denitrification system of 650 MW coal fired unit in a power plant in Shandong. The flow field of SCR system was optimized by the number and shape of different guide plates,to obtain the appropriate number and shape of guide plates and the optimal flow field distribution.Finally,the flow field of the reactor is compared and analyzed before and after the reactor is installed,in order to provide reference value for the reasonable design and installation of the guide plate and rectifier in engineering practice.
引文
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[2]凌忠钱,曾宪阳.电站锅炉SCR烟气脱硝系统化数值模拟[J].动力工程学报,2014,34(1):50-56.
[3]施云芬,陈媛,张益维,等.粉煤灰负载钒氧化物低温SCR催化剂脱硝性能研究[J].东北电力大学学报,2015,35(3):60-63.
[4]S.R.Dhanushkodi,N.Mahinpey,M.Wilson.Kinetic and 2D react or modeling for simulation of the catalytic reduction of NOX in them on olith honeycomb reactor[J].Process Safety and Environmental Protection,2008,86(4):303-309.
[5]卢洪波,武帅,刘畅,等.HG-670/13.7-WM15锅炉低氮燃烧器不同煤粉浓淡比脱硝效果和燃烧特性的数值模拟[J].东北电力大学学报,2017,37(1):47-52.
[6]赵宁,沈伯雄,杨晓燕,等.烟气选择性催化还原脱硝的数值模拟研究进展[J].化工进展,2010,29(11):2165-2170.
[7]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):67-70.
[8]俞逾,杨晨,范莉.电厂SCR系统的设计与数值模拟[J].现代电力,2007,24(3):58-62.
[9]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,2004:28-41.
[10]王伟.SCR脱硝反应器入口烟道流场模拟研究[D].济南:山东大学,2010:27-30.
[11]沈丹,仲兆平,过小玲.600MW电厂SCR烟气脱硝反应器内不同导流板的流场数值模拟[J].电力环境保护,2007,23(1):42-45.