【作者】 李庆； 王利； 杨青；

【Author】 LI Qing;WANG Li;YANG Qing;Electrostatic Research Institute, Hebei University;

【机构】 河北大学静电研究所；

【摘要】 为提高静电除尘器对微细粉尘尤其是PM2.5的收集率,减弱电晕放电离子风对除尘效率的影响,本文以建筑粉尘为研究对象,使用一种新型电袋复合除尘实验装置研究其对微细粉尘的收集效果。通过对收集粉尘的中位径、体积平均径、面积平均径等参数进行分析,研究了新型除尘极板对离子风以及收集效果的影响。结果表明:袋收尘极对微细粉尘具有较强的束缚作用,可以减弱离子风对收集到的微细粉尘的扰动,另外,布袋良好的透气性也减弱了离子风在电场中所形成的螺旋结构流体的强度,两种作用均可以提高除尘器对微细粉尘的收集效果。更多还原

【Abstract】 In order to improve the collection efficiency of subtle dust,especially for the PM2.5,and weak the influence of ion wind on the efficiency of dust removal.We studied the collection efficiency of subtle dust by using a new type of electric bag composite dust experimental device with the construction dust as the object of study.Through analyzing the median diameter,volume mean diameter,area mean diameter and other parameters of the collected dust,we studied the effect of the new type dust plate on the ion wind and collection effect.The results show that,bag dust collecting plat has a strong role in binding of fine dust and reduced the disturbance coming from ion wind.In addition,the good air permeability of bag has also weakened the spiral structure of fluid formed from the ion wind in the electric field.Therefore,the two kinds of function of bag can improve the collection efficiency of fine dust precipitator.更多还原