Gkss-forschungszentrum Geesthacht Gmbh

Jurgen Kaschemekat

Walter Hilgendorff

Gerhard Kahn

An apparatus for filtering and separating flow medium by reverse osmosis, ultrafiltration, and microfiltration. A plurality of essentially sheet-like filter elements are disposed next to, and spaced from, one another so a to form flow chambers for the flow medium. Filtrate that is produced is withdrawn at the end face of at least one hole formed in a filter element and disposed at essentially right angles to the planar surface thereof. A plurality of sheet-like, self-supporting filter element carriers that are successively arranged have disposed essentially laminarly thereon the filter elements, with the filter element carriers being spaced from one another at such a distance that there is formed between each two facing filter elements one of the flow chambers. Disposed in each flow chamber, between two facing filter elements, is a disk that imparts turbulence to flow medium in the flow chamber.

Apparatus for filtering and separating flow medium

A fluid treating apparatus has a plurality of chambers arranged in a stack along the apparatus axis; inlet and outlet ports in end plates as well as a central channel for introducing fluid into and removing fluid from the apparatus; and a plurality of fluid-impervious diaphragms situated in a spaced relationship in the chambers in an orientation generally perpendicular to the axis. The fluid is guided along the diaphragms generally radially inwardly. The apparatus further has a plurality of support frames arranged in a stack along the axis. Each support frame includes an inner ring spacedly surrounded by an outer ring. The radially inner face of the outer ring and the radially outer face of the inner ring of each support frame together define radially outer and radially inner boundaries, respectively, of the chambers. The radially outer faces of the outer rings together form an outer wall face of the apparatus, and the radially inner faces of the inner rings surround the central channel. Each outer ring has a supporting face engaging a radially outer marginal surface portion of an adjoining diaphragm, and each diaphragm has a central aperture in axial alignment with each inner ring and a passage at a radially outer part for allowing flow of fluid axially through each diaphragm.

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Geesthacht, Germany

Jurgen Kaschemekat