SCR脱硝催化剂磨损及堆灰治理  

Solusion Measure for Abrasion and Ash Piling on Denitration Catalys

作　　者：陈鸿伟[1] 徐劲[1] 李丽[2] 王远鑫[1] 罗敏[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003 [2]华北电力大学环境科学与工程学院,河北保定071003

出　　处：《电力科学与工程》2016年第11期60-65,共6页Electric Power Science and Engineering

摘　　要：为解决四川某电厂催化剂层局部磨损和堆灰的问题,基于Flunet14.0数值模拟软件,在SCR反应器内部增设导流装置,对多种工况下的流场分布情况及颗粒轨迹进行模拟对比。结果表明:SCR系统中布置导流装置可以有效改善流场分布均匀性,相对速度偏差由空塔时的58.42%降低为15.64%;颗粒轨迹与流场分布高度一致。通过改善流场分布可以有效缓解催化剂层局部磨损、堆灰的问题。In order to solve the problem of the abrasion and ash piling on the catalyst of a power plant in Si Chuan province,based on the Flunet14. 0 numerical simulation software,a guiding devices is added in SCR reactor. The simulation results of distribution uniformity of the flow field and particles＇ tracks under different work conditions are compared. The results show that the guiding devices can effectively improve distribution uniformity of the flow field,and the particles＇ tracks are same with the distribution regularity of flow field. With the improvement of uniformity in the flow field,we can expect a better solution of the problem.

关 键 词：SCR催化剂 流场优化 磨损 堆灰 颗粒轨迹 

分 类 号：X703[环境科学与工程—环境工程]