中文摘要：

搭建了一个复合式电袋除尘器（hybrid particulate collector，HPC）的电特性实验系统，研究了HPC分别采用7种孔板、2种滤料布袋时的电流-电压伏安特性，并对比研究了钢板替换布袋时HPC的伏安特性，将实验值与电除尘器伏安特性的3种近似公式计算值进行了比较，并采用发展的三维电场算法模拟计算孔板-布袋距离对电袋伏安特性的影响，7种孔板分别考查了开孔率、开孔形状、开孔数目、开孔排列的影响，布袋材料包括普通滤料与抗静电滤料。结果表明，孔板的几何参数与布袋极板的材料对HPC的电流-电压特性影响较小，仅当开孔率大于0．5时总电流有明显下降，而HPC布袋采用普通滤料与抗静电滤料时的电流-电压特性与HPc用钢板替换布袋时的伏安特性近似相同，在电场模型中布袋可以采用接地电势为零的边界条件，而实验值与理论公式计算值对比表明，B6hm公式与GCooperman公式的计算值的平均值与实验值符合较好，而数值计算结果表明孔板一布袋距离对到达布袋的电流影响显著。

英文摘要：

A bench-scale hybrid particulate collector （HPC） was constructed and its current-voltage characteristics were studied experimentally with seven types of perforated-plate and two types of bag. The current-voltage characteristics of HPC with the steel bag were also studied for comparison. The measured results were compared with the predictions of three different theories for the conventional electrostatic precipitator. A finite volume numerical method on unstructured grid was used to calculate the current- voltage characteristics with different distances between the perforated plate and the bag plate. The perforated- plates had considered the diameter, the array and the shape of the hole. The bag materials had considered the polyphenylene sulphide （PPS） filter and the antistatic polyethylene terephthalate （PET） filter. Results indicate that the geometrical parameters and the bag material have little influences on the current-voltage characteristics. But the currents decrease a lot when the hole＇s open ration is higher than 0.5. The current-voltage characteristics of the HPC with steel bag change little compared to that of the HPC with PPS or PET bag. It proves that the PPS and the PET filter have same electric conduction with steel in the HPC. Among three theories, the mean of the predictions of Bohm＇s and G Cooperman＇s expression agree well with the measurements. The numerical results show that the distance between the perforated plate and the bag has big influence on the bag plate current.