Use of an electric field for the removal of droplets in a gaseous fluid
AssigneeTechnische Universiteit Delft
InventorsWillibrordus Nicolaas Johannes Ursem, Johannes Cornelis Maria Marijnissen, Rein André Roos
Life of this patent
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Abstract
A method, and an apparatus to reduce and remove liquid droplets in air, such as fog, mist, haze, spray or steam. The mist and/or air borne water or other liquid droplets catching and collection apparatus creates an “electric wind”, especially enforced by charged needle points or line arranged constructions and/or wires of the first electrode and an electric charging of mist and/or air borne water or other liquid droplets, which will be directed by the “electric wind” and the electric field between the electric source and the opposite grounded or opposite charged counter electrode (second electrode) of fine gauze or something comparable.
Claims17
A method for the removal of droplets in a gaseous fluid selected from the group consisting of fog, mist, haze, spray and steam, which comprises:
- applying to the gaseous fluid an electric field in the range of 0.1-100 kV/m between:
- (a) first electrode, being a positive electrode comprising a plurality of conductive needles arranged to generate corona discharges;
- and
- (b) a second electrode, being an earthed electrode, comprising an air permeable conductive sieve of a plurality of conductive strands having a shortest distance between adjacent conductive strands in the range of 0.01-500 mm;
- wherein the plurality of conductive needles are arranged to point in the direction of the second electrode, and wherein the shortest distance between the first electrode and the second electrode is in the range of 5-500 m.
A method for the removal of droplets in a gaseous fluid comprising applying an electric field in the range of 0.1-100 kV/m to the gaseous fluid, wherein the electric field is applied between:
- (a) a first electrode, being a positive electrode comprising a plurality of conductive needles arranged to generate corona discharges;
- and
- (b) a second electrode, being an earthed electrode, comprising an air permeable conductive sieve of a plurality of conductive strands having a shortest distance between adjacent conductive strands in the range of 0.01-500 mm,
- wherein the method further comprises arranging the plurality of conductive needles to point in the direction of the second electrode, and wherein the shortest distance between the first electrode and the second electrode is in the range of 5-500 m.
An apparatus for removing droplets from a gaseous fluid, comprising:
- (a) a first electrode arranged as a positive electrode comprising a plurality of conductive needles, arranged to generate corona discharges, and arranged to generate an electric field in the range of 0.1-100 kV/m;
- and
- (b) a second electrode, being an earthed electrode, comprising an air permeable conductive sieve of a plurality of conductive strands having a shortest distance between adjacent conductive strands in the range of 0.01-500 mm;
- wherein the plurality of conductive needles are arranged to point in the direction of the second electrode, and wherein the shortest distance between the first electrode and the second electrode is in the range of 5-500 m.
Dependencies are inferred from the claim text.