摘要
电站锅炉在低负荷工况下SCR入口烟温偏低,无法满足SCR投运要求。介绍了某电厂600 MW锅炉通过分级省煤器技术改造,将锅炉250 MW负荷下脱硝入口烟温提高20℃以上,且不降低锅炉效率,保证了SCR投运率和脱硝效率,在同类型锅炉上具有广泛的应用前景。
The outlet gas temperature of boiler economizer is relatively low at low load, which can not meet the requirements of Selective Catalytic Reduction operation. The article introduces the transform of staged economizer in 600 MW boiler of one power plant, enhance the SCR inlet gas temperature over 20 ℃ at 250 MW, at the same time it will not reduce boiler efficiency,guarantee the SCR operation rate and denitration efficiency, and it has wide application prospect in the same type boiler.
出处
《锅炉技术》
北大核心
2015年第6期21-24,共4页
Boiler Technology
关键词
SCR
分级省煤器
宽负荷
脱硝
烟温
Selective Catalytic Reduction
staged economizer
low load
denitrationgas temperature
