Spiral wound filtration membrane cartridge with chevron seal
AssigneeMillipore Corporation
InventorsJoseph Almasian, Stephen Dzengeleski
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Abstract
A spiral wound filtration cartridge construction is provided which includes a cartridge positioned within a solid outer cylinder which, in turn is positioned within a solid outer cylinder which, in turn is positioned within a solid housing. Fluid flows within the space between the outer cylinder and housing is controlled by a ring and flexible chevron construction. The chevron construction includes outer peripheral holes, the sizes and number of which are set to determine by-pass flow.
Claims4
In a spiral wound apparatus for filtering a fluid to produce a permeate and a retentate including a separation cartridge comprising at least one membrane, a plurality of porous feed screens and a plurality of porous permeate screens spirally wound about a central tube having a hollow interior, said separation cartridge being housed within a rigid nonporous solid outer tube, said solid outer tube being housed within a solid housing spaced apart from said outer tube to form a space, means for sealing said permeate from said retentate, and means for controlling fluid flow between said solid outer tube and said solid housing, the improvement which comprises:
- said means for controlling fluid flow between said solid outer tube and said solid housing comprising a chevron shaped seal secured to an outer surface of said solid outer tube, said seal being secured by a flexible retaining ring in contact with said seal about the periphery of said seal.
Dependencies are inferred from the claim text.