摘要
运用FLUENT对电袋除尘器电场区域内流场、电晕电场、荷电粒子运动轨迹进行数值模拟,确定静电区捕集粉尘的最小粒径,优化静电区集尘板的最佳开孔范围.首先数值模拟了电袋除尘器静电区的流场分布和电场分布,在此基础上,分别数值模拟了粒径为0.5、1.5和2.5μm的粒子在外加电压为45 k V的电场中的运动轨迹和速度分布,并进行了数值分析.模拟结果表明：在该除尘器结构及模拟条件下,除尘器静电区通道内最小捕集粒径为1.5μm;在静电区通道内集尘板X方向的最佳开孔范围是0.324-1.25 m.研究结果为电袋除尘器静电区内结构的设计和优化提供理论参考.
Numerical simulation are performed on the the flow field, electric field and charged particle trajectory in electrical area of EBP by using FLUENT software to work out the minimum removal diameter of dust in electric field and optimize the opening range of dust collector. Electric distribution and flow field distribution are numerically simulated. The particle movement and velocity distribution in the voltage of 45 k V in electric field, whose diameter includes 0.5, 1.5 and 2.5 μm, are numerically simulated and analyzed. The results show that the minimum removal diameter is 1.5 μm and the optimal opening ranges from 0.324 m to1.25 m along the X direction in electrical passageway. The results can be used as theoretical reference for both electrostatic fabric filter design and structure optimization.
出处
《有色金属科学与工程》
CAS
2015年第3期111-115,126,共6页
Nonferrous Metals Science and Engineering
基金
国家自然科学基金资助项目(51464016)
江西省教育厅资助项目(GJJ14421)
关键词
电袋除尘器
粒径
开孔范围
粒子荷电
捕集效率
粒子运动轨迹
electrostatic fabric filter
particle diameter
opening range
particle charging
collection efficiency
particle movement track
