Patent ID: 7517394
Filing Date: 2009-04-14
Classification: B03C,Y10S

Abstract:
1. A wet electrostatic ionization stage in an electrostatic separation device for purifying a flowing aerosal including finely dispersed particles entrained in a gas, the wet electrostatic ionization stage comprising: a plate disposed across a cross section of a flow channel and connected to one of a ground potential and reference counterpotential, the plate comprising a plurality of substantially identical openings configured to allow the gas to flow therethrough; a high-voltage grid disposed across the cross section of the flow channel in electrical isolation from a wall of the flow channel downstream or upstream relative to the plate, the high-voltage grid being coupled to a high-voltage potential via a bushing disposed in the wall of the flow channel; a respective rod-shaped high-voltage electrode corresponding to each of the plurality of openings and coupled at one end thereof to the high-voltage grid, each electrode including a free end projecting centrically into the respective opening; a respective disk of electrically conductive material disposed at the free end of each electrode, the disks being disposed in a substantially identical manner parallel to the plate, centrically with a corresponding opening and free from contact with the plate, each disk including at least two outwardly extending radial tips; and a respective sleeve disposed in each of the plurality of openings, the sleeves each having a substantially identical cross section and an axis disposed substantially perpendicular to the plate, each sleeve being spaced circumferentially at a constant distance L from the corresponding radial tips.