烟气脱硝系统喷氨调节控制技术研究  

A New Adjustment and Control Technology on Spraying Ammonia Flow for Boiler Flue Gas De-nitrification

作　　者：王敏[1] 严智操[1] 惠润堂 杨爱勇[1] 张承武[1] 韦飞[1] 冯建春[1] 王雪松 

机构地区：[1]国电环境保护研究院,江苏南京210031 [2]国电民权发电有限公司,河南民权476800

出　　处：《广东化工》2017年第9期201-201,200,共2页Guangdong Chemical Industry

基　　金：国家高技术研究发展计划(863计划)(2013AA065401)

摘　　要：选择性催化还原烟气脱硝(SCR)工艺在运行过程易出现出口NOx浓度超标、喷氨过量、氨逃逸率增加等问题。本文从火电厂实际运行情况出发,结合调节阀的工作原理和调节特性,分析造成上述问题的原因,研制了一种新型烟气脱硝系统喷氨调节控制技术,并在工程中进行了应用。Spraying ammonia flow can influence the efficiency of supercritical boiler＇s flue gas de-nitrification device based on selective catalytic reduction （SCR）. Excessive spraying flow can also result in ash deposit and corruption of backward heating units such as air heater, simultaneously, it causes resource waste and second pollution. This paper introduced a new adjustment and control technology on spraying ammonia flow in the SCR system and their applications in engineering, which provided references to solve other similar problems on ammonia spray.

关 键 词：火电厂 选择性催化还原 烟气脱硝 喷氨 调节控制 

分 类 号：X701.7[环境科学与工程—环境工程]