MULTISECTIONAL ELECTRIC FILTER Russian patent published in 2003 - IPC

FIELD: cleaning of air flow from aerosols. SUBSTANCE: multisectional electric filter includes two stages. First stage of multisectional electric filter has two groups of metal plates. First group of metal plates is arranged at inlet of gas flow into electric filter. Second group of metal plates is placed in path of flow behind first group. Ionizing electrode is positioned between first and second groups of metal plates. Butts of plates of both groups facing center of first stage form circumference in which center longitudinal axis of ionizing electrode is located. Metal plates of first and second groups are electrically isolated one from another and from ionizing electrode. Metal plates of first group are electrically interconnected, metal plates of second group[ are electrically isolated one from another. Second stage of multisectional electric filter comprises parallel metal plates electrically isolated one from another. Plates are arranged at equal distance one from another and their number equals number of plates of second group of first stage. Ionizing electrode and plates of first group of first stage have opposite polarity. Distance between axis of ionizing electrode and butts of plates of first and second groups of first stage is so chosen that intensity of electric field amounting to 0.01 to 10.0 kV/mm emerges in gap between butts of plates and ionizing electrode with supply of voltage. Adjacent plates of second stage and plates of second group of first stage have opposite polarity. Distance between plates is chosen on condition that value of intensity of electric field between plates is from 0.01 kV/mm to 10.0 kV/mm. EFFECT: high-degree of cleaning of gas flow and economic consumption of electric energy. 3 cl, 2 dwg