HU Qing. Application Study of Optimization Technology for SCR Flow Field and Ammonia Injection Control[J]. 2021, 41(5): 48-52.DOI:
SCR流场及喷氨控制优化技术的应用研究
摘要
为解决SCR流场及喷氨控制存在的问题
以某660 MW机组为研究对象
提出一种SCR流场及喷氨控制优化方案。应用结果表明
该方案可提高SCR入口烟气流场均匀性
减少SCR出口NO
x
浓度波动
降低分区出口NO
x
浓度偏差
减少过量喷氨现象。
Abstract
In order to solve the problems of SCR flow field and ammonia injection control
an optimization scheme of SCR flow field and ammonia injection control is proposed for a 660 MW unit. The application results show that the scheme can improve the uniformity of flue gas flow field
reduce the fluctuation of NO
x
concentration at the outlet of SCR
reduce the deviation of NO
x
concentration at the outlet of zone
and reduce the phenomenon of excessive ammonia injection.