FILTERING APPARATUS Russian patent published in 2002 - IPC

FIELD: means for purification of various media, for, instance, for purification, separation and concentration of process solutions and gaseous media, water treatment, sewage water treatment. SUBSTANCE: apparatus may be used in food, medical, microbiological and other industries, and also in agriculture and household conditions. Filtering apparatus has a casing accommodating coaxially installed central distributing tube with a row of holes and a set of tubular membrane members secured with their one ends to tube plate, cover bottom, inlet and outlet pipes for intake and discharge of treated medium and adjacent cavities to inlet and outlet pipes; and secured with their other ends to the second tube plate. Both tube plates are attached to central distributing tube. Adjacent to tube plates are lattice packings, and hold-down grids are adjacent to packings. Tube plates, lattice packings and hold-down grids are located inside casing. Cavities adjacent to inlet and outlet pipes in cover and bottom are formed by sides of cover and bottom and supporting rings adjacent to central distributing tube. Casing has flange for fastening of cover. Central distributing tube has a thread at its end. EFFECT: simplified replacement of one or several membrane members and manufacture of apparatus. 5 cl, 2 dwg