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US 2007/0163941 A1Published application
System and Method of Fluid Filtration Utilizing Cross-Flow Currents
AssigneeDual Vortex Microfiltration, LLC
InventorsClinton Kopp, Guanghua Yu, Chang-Wie Jen
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Abstract
A filter system and method of filtering a feed liquid utilizing a combined plurality of filter assemblies. Each filter assembly includes a filter housing, a filter cartridge and a spiral passageway for imparting secondary flow currents, particularly Dean-Flow currents, to fluid flowing within the spiral passageways to prevent particulate build-up on filter surfaces so as to extend filter life and duration between replacement. The filter system can be operated within positive or negative pressure filtration processes. A dual-stage filtration process utilizing a cap filter and a cylindrical depth filter is also disclosed.
Claims39
A filter system comprising:
- a plurality of filter housings, each filter housing defining a housing cavity;
- a plurality of filter cartridges received within the plurality of housing cavities, said filter cartridges defining an elongate permeate passageway, said permeate passageway being in fluid communication with a permeate manifold;
- a plurality of spiral guides extending around an outer filter cartridge surface, wherein each said spiral guide imparts secondary flow across said outer filter surface and perpendicular to a fluid flowing through said spiral guides;
- and
- a concentrate manifold being in fluid communication with said spiral guides, said concentrate manifold receiving concentrate passing through said spiral guides.
2 more elements
A filter system comprising:
- a concentrate manifold;
- a permeate manifold being generally linearly aligned relative to the concentrate manifold;
- a plurality of filter housings, each filter housing having a spiral guide extending toward a housing center, and said filter housings being generally linearly aligned relative to the concentrate manifold;
- and
- a plurality of filter cartridges, each cartridge being mounted within one of the plurality of filter housing and positioned proximate to the spiral guide, wherein the filter housings and cartridges extend upwardly from the concentrate manifold, and wherein feed liquid is drawn into the filter housings through multiple apertures.
2 more elements
A filter system comprising:
- a plurality of filter assemblies, each assembly including an elongate filter housing having an interior cavity, an elongate filter cartridge within the cavity, and a spiral guide spanning within the cavity, said spiral guide defining a spiral fluid passageway extending along a length of the cartridge, said filter housing having a first open end in fluid communication with a feed fluid and a second end coupled to a permeate manifold and concentrate manifold, with said permeate manifold and said concentrate manifold being generally cylindrical and concentrically aligned.
A filter system comprising:
- a plurality of filter cartridges inserted into a plurality of filter housings, each of said filter housings being in fluid communication with a feed fluid, and said filter cartridge includes an interior passageway in fluid communication with a permeate manifold, and a spiral passageway extends within the filter housing between an opening to the feed fluid and a passageway in fluid communication with a concentrate manifold, and wherein the filter cartridge includes an elongated filter media and having a plurality of fluid flow resistors within the interior passageway, said flow resistors equalizing a flow of fluid within the spiral passageway through the filter media.
A method of filtering a feed fluid comprising:
- providing a plurality of filter assemblies, each comprising an interior cylindrical filter cartridge in a filter housing, and a spiral fluid guide spanning between the filter and the housing so as to define a spiral fluid passageway around the filter cartridge;
- providing a concentrate manifold in fluid communication with said spiral fluid guides and a permeate manifold in fluid communication with an interior passageway of said filter cartridge;
- providing a feed fluid into one end of said filter housing, said feed fluid being introduced into said spiral fluid passageway;
- and
- drawing feed fluid through said spiral fluid passageway at a velocity sufficient to induce Dean-Flow currents in the fluid so as to provide a shear cleansing current across said filter cartridge.
2 more elements
A method of filtering a feed fluid comprising:
- providing a plurality of filter assemblies comprising an interior cylindrical filter cartridge within a filter housing, and a spiral fluid guide spanning between the filter and the housing so as to define a spiral fluid passageway around the filter cartridge;
- providing a concentrate manifold in fluid communication with said spiral fluid guides and a permeate manifold in fluid communication with interior passageways of said filter cartridges;
- and
- drawing a feed fluid into one end of said filter housing, said feed fluid being introduced into said spiral fluid passageway at a velocity sufficient to induce Dean-Flow currents in the fluid so as to provide a shear cleansing current across said filter cartridge.
1 more element
A filter system comprising:
- a plurality of filter cartridges inserted into a plurality of filter housings, each of said filter housings being in fluid communication with a feed fluid, and said filter cartridge includes an interior passageway in fluid communication with a permeate manifold, and a spiral passageway extends within the filter housing between an opening to the feed fluid and a passageway in fluid communication with a concentrate manifold, and wherein the filter cartridge includes an elongated filter media and having an apertured cap at one end and an adapter on an opposed end, said adapter providing a fluid passageway between an interior of the filter cartridge and a permeate manifold.
Dependencies are inferred from the claim text.