660MW超超临界燃煤机组SCR脱硝装置自动控制异常分析
Analysis of Abnormal Automatic Control of SCR Denitration Device in 660MW Ultra supercritical Coal-fired Units
肖朋飞1
作者信息
- 1. 新乡中益发电有限公司,河南 453400
- 折叠
摘要
阐述660MW燃煤机组选择性催化还原脱硝系统的特点,针对在超低排放过程中出现的因设备缺陷、逻辑不当、NOx分布不均、氨逃逸大的异常,造成脱硝系统自动长期无法投入、脱硝耗材增加的问题,探讨运行状况和诊断策略,采取有效的预防措施.
Abstract
This paper expounds the characteristics of the selective catalytic reduction denitrification system for 660MW coal-fired units.In response to the problems of equipment defects,improper logic,uneven distribution of NOx,and large ammonia escape that occur during the ultra-low emission process,resulting in the automatic long-term inability to put the denitrification system into operation and an increase in denitrification consumables,it explores the operating conditions and diagnostic strategies,and takes effective preventive measures.
关键词
控制技术/脱硝控制/喷氨格栅优化/均匀性Key words
control technology/denitrification control/optimization of ammonia spray grille/uniformity引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据