静电除尘器粉尘运动轨迹的数值模拟与分析  

NUMERICAL SIMULATION AND ANALYSIS OF DUST PARTICLE TRAJECTORY IN ELECTROSTATIC PRECIPITATOR

作　　者：张建平[1,2] 杜玉颖[1] 戴咏夏[1] 潘卫国[1] 

机构地区：[1]上海电力学院能源与环境工程学院,上海200090 [2]上海交通大学机械与动力工程学院,上海200240

出　　处：《环境工程》2011年第2期78-81,共4页Environmental Engineering

基　　金：上海市教育委员会科研创新项目资助(11ZZ172;11ZZ171);上海市教委重点学科(第五期)G51304;上海市教委第三期本科教育高地建设项目资助;上海市自然科学基金资助项目(09ZR1413000)

摘　　要：为了分析线-管式静电除尘器的流动特性以及粉尘收集过程,建立流场、电场和颗粒动力场的数学模型,利用fluent软件对其进行数值模拟。结果表明:逃逸粉尘平均粒径随工作电压增高呈非线性递减关系,但随入口流速增大基本呈线性递增关系;而粉尘向收尘板偏移趋势随工作电压增高而增强,但随入口流速增大而减弱。In order to study the flow characteristics and trapping process of the dust particles in a wire-duct electrostatic precipitator,the mathematic model of the flow field,electric field and particle dynamic field was built,and the numerical simulation was achieved by FLUENT software.The results indicate that the average diameter of escaping particle is nonlinearly decreasing with the increase of operating voltage,but linearly increasing with the increase of inlet velocity.Furthermore,the movement trend towards the dust collection plate can be obviously strengthened by the increase of the voltage,but weakened by the increase of the inlet velocity.

关 键 词：静电除尘器 粉尘颗粒 运动轨迹 数值模拟 

分 类 号：X701.2[环境科学与工程—环境工程]