Filtration device with stacked deep-bed filter elements
AssigneePall Corporation
InventorsGerhard Strohm, Georg Schnieder, Wolfgang Hepp
Life of this patent
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Abstract
The invention relates to a filtration device for deep-bed filtration which is easier to handle and enables filter modules(s) to be changed and disposed of easily. The filtration device has a casing with at least one filter module inserted in the casing with filter elements made from deep-bed filter materials stacked on top of each other. The filter elements have at least one internal structure formed by a perforation wherein the boundary surface of the perforation formed by the deep-bed filter materials creates a through-flow surface for filtrates or non-filtrates. At least one end plate has at least one inlet and/or outlet.
Claims20
Filtration device comprising:
- a housing which includes an inlet opening for supplying an unfiltered material thereto, and an outlet opening for removing a filtered material therefrom;
- and
- at least one filter module positioned within the housing and having two end plates;
- wherein
- the filter module includes filter elements of deep bed filter material which are stacked one on top of another, wherein the filter elements have
- (i) an outside peripheral surface which acts as a flow surface, and
- (ii) first and second types of openings which are unconnected to one another and which establish narrow longitudinal structures, and wherein
- said first and second types of openings together form an inner structure that establishes a grid-like structure of substantially uniform widths of filtration area, wherein said filtration area is substantially uniform throughout the deep bed filter material whereby boundary surfaces are formed by the deep-bed filter material to thereby establish a flow surface for one of the filtered material and the unfiltered material, and wherein
- at least one filter element has a connecting opening that establishes a connection from at least one of said first type of openings to a peripheral surface of said at least one filter element, and wherein
- at least one of said two end plates has openings that are connected to the at least one inner structure, and wherein the filter elements are stacked on top of one another such that only the first type of openings are connected to one another and only the second type of openings are connected to one another to thereby respectively form filtered material channels and unfiltered material channels within the filter module.
Filtration device comprising:
- a housing which includes an inlet opening for supplying an unfiltered material thereto, and an outlet opening for removing a filtered material therefrom;
- and
- at least one filter module positioned within the housing and having two end plates, wherein
- the filter module includes filter elements of deep bed filter material which are stacked on top of one another and which have at least one inner structure formed by an opening which defines a boundary surface which is formed by the deep-bed filter material to thereby establish a flow surface for one of the filtered material and the unfiltered material, and to establish a grid array of uniform widths of filtration area in the deep bed filter material so as to achieve effective filtration action which is uniform throughout the deep bed filter material, and wherein
- at least one end plate is made so as to distribute the unfiltered material into the unfiltered material channels of the filter module and/or collect the filtered material.
Dependencies are inferred from the claim text.