燃煤电站SCR脱硝系统运行优化

Operation optimization an SCR denitration system in a coal-fired power plant

为降低SCR脱硝系统的运行成本,保证该系统高效、安全、稳定运行,需要对SCR脱硝系统进行优化。通过分析系统存在的问题,提出了入口烟气流场优化、喷氨优化管理、催化剂性能控制管理和建立预警系统等优化措施,达到改善入口氨氮摩尔比分布的均匀性、延长催化剂使用寿命以及预防空气预热器堵塞的目的。

In order to reduce the operation cost of SCR denitration system and ensure its efficient,safe and stable operation,it is necessary to optimize the SCR denitration system.Based on the analysis on the existing problems of the system,optimization methods including optimizing flue gas field at the entrance of the system,improving ammonia injection,control the management of catalyst performance and establishing a warning system were proposed to improve the uniformity of ammonia-nitrogen molar ratio at the entrance,prolong the service life of catalyst and prevent the blockage of air preheaters.