Patent ID: 6284118
Filing Date: 2001-09-04
Classification: B01D,B03C

Abstract:
A method for maintaining a supply of filtered dielectric fluid for a dielectric fluid user, which requires filtered dielectric fluid on a continuous basis and produces contaminated dielectric fluids, said method comprising the steps of:a) passing said contaminated dielectric fluid to a contaminated dielectric fluid storage;b) passing said stored dielectric fluid to a filtration system comprising a plurality of electrostatic filters comprising:1) a housing enclosing an inner chamber and having an outer wall, a first end and a second end;2) a plurality of electrically conductive electrode plates supported in a spaced apart position in the inner chamber and alternately oppositely chargeable with a positive or a negative D.C. electrical charge;3) an inlet dielectric fluid passageway formed between an outside of the electrode plates and an inside of the outer wall;4) a filtered dielectric fluid passageway axially positioned through at least a portion of the electrode plates so that the fluid flows from the inlet dielectric fluid passage way between the electrode plates to the filtered dielectric fluid passage way;5) a contaminated dielectric fluid inlet into the inner chamber and in fluid communication with the inlet dielectric fluid passageway;6) a plurality of filter media sections positioned between adjacent electrode plates whereby the contaminated dielectric fluid flows from the inlet dielectric fluid passageway radially between the electrode plates and through the filter media sections to the filtered dielectric fluid passageway; and,7) a filtered dielectric fluid outlet in fluid communication with the dielectric filtered fluid passageway; and,c) passing filtered dielectric fluid from the dielectric fluid outlet to a filtered dielectric fluid storages tank; and,d) passing filtered dielectric fluid from the filtered dielectric fluid storage tank to the dielectric fluid user.