TWO-GAP ELECTRIC FILTER Russian patent published in 2013 - IPC B03C3/08 B03C3/41 

FIELD: process engineering.

SUBSTANCE: invention relates to equipment for environmental protection. Proposed filter comprises encased ioniser 2, settler 3 consisting of discharge electrodes 4 and corona-free electrodes 5, and high-voltage source 6. Electric filter is equipped with device to create hydrated ions 7 provided with vessel 8 wit water secured at case bottom and short-circuited annular anode 9 and cylindrical cathode 11 coiled in quartz tube 10. Cylindrical cathode is arranged so that its vertical axis is located perpendicular to airflow direction. Cathode end located in water is connected by current conductor via electronic switch 13 and timer 14 with negative plate of capacitors battery while its opposite end extended above water level by 3…5 mm. Note here that short-circuited anode is connected with positive plate of capacitors battery.

EFFECT: higher quality of cleaning.

2 cl, 1 dwg