基于PIMs技术的多点在线式氨逃逸检测系统在燃煤电厂的应用

氨逃逸是反映燃煤电厂SCR烟气脱硝系统运行性能状况的关键参数.由于国内燃煤电厂粉尘含量高、氨逃逸分布不均等原因,氨逃逸率检测存在一些问题.本文对氨逃逸测量方法进行对比分析,介绍了一种基于PIMs技术的多点在线式氨逃逸检测系统及在某电厂的应用情况,为脱硝系统喷氨量提供调整依据.

Ammonia escape is reflecting the coal-fired power plant SCR flue gas denitration system running performance status of key parameters due to domestic coal dust content high ammonia escape distribution inequality, ammonia detection in this paper, some problems existing in ammonia escape escape rate measuring method were analyzed, the paper introduces a multipoint on-line based on the technology of PIMs ammonia escape detection system and its application in a power plant, ammonia injection quantity for denitration system provides the basis of the adjustment.