火电厂SCR脱硝系统故障分析及处理

Fault Analysis for the SCR De-NO_x System in a Thermal Power Plant and Corresponding Solutions

为降低火电厂SCR脱硝系统故障发生率,分析总结了故障发生的原因并进行了相应处理。结果表明:疏通供氨系统管道、优化喷氨调节阀自动调节逻辑、提高喷氨均匀能性等措施使SCR脱硝系统运行的安全性和经济性得到提高。

To lower the frequency of SCR de-NOx system malfunctions,an analysis was conducted on the reasons leading to the faults,with effective measures put forward.Results show that the safe and economical operation of an SCR de-NOx system in thermal power plant could be guaranteed when following measures are taken,like dredging the ammonia supply pipes,optimizing the automatic adjustment logic and improving the evenness of ammonia injection,etc.