脱硝系统运行调整试验分析  

Analysis of Operation Adjustment Test of Denitration System

作　　者：曾国兵[1] 张宏英 刘聪[1] 王明非 ZENG Guo-bing;ZHANG Hong-ying;LIU Cong;WANG Ming-fei(Anhui Electrical Engineering Professional Technique College,Hefei 230051,Anhui Province;The First Construction Engineering Company Ltd.,China Construction Second Engineering Bureau,Beijing 100176;Liaoning Power Transmission and Transformation Engineering Co.Ltd,Shenyang 110021,Liaoning Province)

机构地区：[1]安徽电气工程职业技术学院,安徽合肥230051 [2]中建二局第一建筑工程有限公司,北京100176 [3]辽宁省送变电工程有限公司,辽宁沈阳110021

出　　处：《沈阳工程学院学报（自然科学版）》2021年第2期18-23,共6页Journal of Shenyang Institute of Engineering:Natural Science

基　　金：安徽省教育厅2020年质量工程项目(2020dsgzs04)。

摘　　要：锅炉脱硝系统改造后,存在NO_(x)排放达不到环保要求,受热面的磨损加剧,空气预热器结垢严重等问题。通过对脱硝系统进行运行优化调整试验,对SNCR喷枪及SCR喷氨格栅的开度和喷氨量进行了调整,使机组的NO_(x)排放指标达到环保要求,提高了脱硝效率并减少了氨逃逸,有效地缓解了SCR下游设备的NH_(4)HSO_(4)沉降及堵灰状况,为同类型机组脱硝系统的运行优化调整提供了借鉴思路。After the denitrification system of the boiler was reformed,there were problems such as NO_(x) emissions that could not meet environmental protection requirements,increased wear on the heating surface and serious fouling of the air preheater.Through the operation adjustment test of the denitrification system,the NO_(x) emission index of the unit operation can meet the environmental protection requirements,improve the denitrification efficiency and reduce ammonia escape,effectively alleviate the ammonium bisulfate sedimentation and ash blocking of the downstream equipment of the SCR.The operation adjustment can also provide a reference for the operation optimization and adjustment of denitrification system of the same type unit.

关 键 词：NOx 氨逃逸 SCR 

分 类 号：TK229[动力工程及工程热物理—动力机械及工程]