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US 8,012,229 B1Granted
Liquid particulate extraction device
AssigneeResearch International, Inc.
InventorsElric W. Saaski, Duane M. Fox
Life of this patent
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Abstract
Extraction devices are disclosed for extracting liquid particulates from a gaseous stream. The extraction devices may have a powered or free spinning rotating extractor that may be mounted in the extraction device's source or extraction duct. During operation, liquid particulates impinging on the rotating extractor form a thin film of extracted liquid that travels due to centrifugal force to the periphery of the extractor's exterior surface where the extracted liquid may be flung to the inner surface of the extraction duct and collected.
Claims23
An extraction device for extracting entrained liquid particulates from a gaseous stream, wherein said extraction device comprises:
- an extractor;
- an extraction duct;
- and an extractor mount that is operable to mount said extractor for rotation at least partially within said extraction duct;
- wherein said extractor comprises an upstream end and an exterior surface;
- wherein said exterior surface comprises an upstream surface, and wherein said upstream surface comprises a periphery;
- wherein said extractor's upstream end does not comprise an inlet that is operable to receive said gaseous stream;
- wherein said extractor does not comprise an interior central space that is operable to receive said gaseous stream from said inlet;
- and wherein said gaseous stream does not travel radially outwardly through said extractor from said interior central space to outside of said extractor;
- wherein said extraction duct comprises an inner surface and an extracted liquid outlet;
- and
- wherein, during use of said extraction device, said gaseous stream passes through said extraction duct;
- said extractor is immersed within said gaseous stream, said extraction device rotates, and at least some of said liquid particulates in said gaseous stream are extracted from said gaseous stream by said upstream surface of said extractor and form a thin film of extracted liquid on said upstream surface;
- wherein as said extractor rotates it creates a centrifugal force that urges said extracted liquid on said upstream surface to travel to said periphery of said upstream surface and to be flung from said periphery to said inner surface of said extraction duct;
- and wherein at least some of said extracted liquid on said inner surface of said extraction duct travels to said extracted liquid outlet.
11 more elements
An extraction device for extracting entrained liquid particulates from a gaseous stream, wherein said extraction device comprises:
- an extractor;
- wherein said extractor comprises an exterior surface;
- wherein said exterior surface comprises an upstream surface, and wherein said upstream surface comprises a periphery;
- an extraction duct;
- wherein said extraction duct comprises an inner surface and an extracted liquid outlet, and wherein said gaseous stream passes through said extraction duct;
- and
- an extractor mount that mounts said extractor for rotation;
- wherein said extractor mount mounts said extractor at least partially within said extraction duct, and within said gaseous stream;
- wherein, during use of said extraction device, said extractor rotates, and at least some of said liquid particulates in said gaseous stream are extracted from said gaseous stream by said upstream surface of said extractor and form a thin film of extracted liquid on said upstream surface;
- wherein as said extractor rotates it creates a centrifugal force that urges said extracted liquid on said upstream surface to travel to said periphery of said upstream surface and to be flung from said periphery to said inner surface of said extraction duct;
- and wherein at least some of said extracted liquid on said inner surface of said extraction duct travels to said extracted liquid outlet;
- wherein said extraction duct further comprises an extraction duct outlet;
- wherein said extraction duct outlet has a cross sectional size;
- wherein said extraction duct has a cross sectional size;
- and wherein said cross sectional size of said extraction duct outlet is smaller than said cross sectional size of said extraction duct near said extraction duct outlet;
- wherein said extractor is located near said extraction duct outlet;
- wherein said exterior surface of said extractor further comprises a downstream surface;
- wherein said extractor further comprises a vane that is carried by said downstream surface of said extractor;
- wherein said extraction duct further comprises an extraction duct surface that at least partially surrounds said extraction duct outlet;
- wherein said vane has a downstream edge;
- wherein at least part of said downstream edge of said vane overlaps at least part of said extraction duct surface;
- and wherein at least part of said downstream edge of said vane is located near said extraction duct surface;
- and
- wherein said extractor further comprises a thin annular plate carried by at least part of said downstream edge of said vane.
21 more elements
Dependencies are inferred from the claim text.