燃煤电站烟气SCR脱硝控制系统改进  

Improvements on Control System for SCR Flue Gas Denitrification of Coal-fired Power Plants

作　　者：马立阁[1] 

机构地区：[1]上海发电设备成套设计研究院,上海200240

出　　处：《发电设备》2016年第3期210-214,共5页Power Equipment

摘　　要：介绍了烟气SCR脱硝工艺及反应原理,对其喷氨控制传统方案存在的问题进行了分析,并进行了改进。工程实践证明:改进后的串级-前馈控制方式控制效果良好,既满足了环保排放标准,又降低了电厂脱硝运行成本,提高了脱硝控制系统的自动投入率。Based on the SCR flue gas denitrification technology and its reaction principle, problems existing in traditional method of SCR ammonia injection control were analyzed, to which improvement measures were proposed and taken. Engineering practices have proved that the improved cascade-feedforward control method has a good control performance. On the premise of environmental protection, the denitrification cost of the power plant is reduced, while the automatic input rate of the control system is improved.

关 键 词：烟气脱硝 分散控制系统 喷氨流量控制 

分 类 号：X701[环境科学与工程—环境工程]