大扩张角静电除尘器内流场均匀性及压力特性试验研究  

Research on Flow Uniformity and Pressure Characteristics of a Wide-angle Electrostatic Precipitator

作　　者：周昊[1] 赵锴[1] 赵梦豪 马炜晨 宋金 

机构地区：[1]浙江大学能源工程学院,能源清洁利用国家重点实验室,杭州310027 [2]上海电气斯必克工程技术有限公司,上海200090

出　　处：《动力工程学报》2017年第9期716-725,共10页Journal of Chinese Society of Power Engineering

基　　金：国家重点基础研究发展计划资助项目(2015CB251501)

摘　　要：针对面积比为9.43,上、下扩张角分别为45°、57°的静电除尘器物理模型进行了气流均匀性及压力特性研究.建立了静电除尘器模型试验台架,采用空气作为流动介质,静电除尘器内部速度为1.06~1.27m/s.结果表明:试验成功将速度的相对偏差降低到0.27;多孔板设计存在气流均匀性好同时压降又较小的最优方案,最优开孔率范围为0.5~0.7;多孔板位置越靠上游、层数越多,静电除尘器压降越大.Flow uniformity and pressure characteristics of an electrostatic precipitator were studied based on the model test rig with area ratio of 9.43, up and down extending angle of 45° and 57° respectively, and with inside velocity of the air medium within 1.06-1.27 m/s. Results show that the relative deviation of flow rate can be reduced to 0.27 through experiments; uniform air flow and low pressure drop could be a- chieved by optimizing the design of perforated plates with an optimal perforated rate in the range of O. 5- 0.7; when the perforated plate moves upstream, or when the number of perforated plates rises, the pres- sure drop would increase.

关 键 词：静电除尘器 非均匀开孔率 多孔板 压降 

分 类 号：TK284.5[动力工程及工程热物理—动力机械及工程]