MEMBRANE APPARATUS Russian patent published in 1999 - IPC

FIELD: membrane apparatuses for separation of liquid media with the aid of semipermeable membranes. SUBSTANCE: membrane apparatus uses a cylindrical body accommodating membrane members, with filtrate offtakes and coupling bushes positioned in it, and a cover with pipe connections for delivery of source liquid, discharge of filtrate and concentrate. The cylindrical body is composed of separate shells interconnected with the aid of clips through the flanges with packing rings of elastomer, and having a membrane member inside each shell, with a spacer ring installed on the rear end. The membrane member, the last one in the direction of concentrate motion, is fixed by a thrust ring on the side of the rear end. The peripheral surface of each membrane member has an elastic collar resting on the front flange of the shell. The bushes coupling the filtrate offtakes are made cylindrical. The apparatus has thin-walled ellipsoidal covers furnished with flanges. With the aid of clips the cover flanges are connected to the mating flanges of the extreme shells through packing rings of elastomer. EFFECT: enhanced convenience in use, reduced specific quantity of metal per structure and enhanced convenience in mounting. 2 cl, 1 dwg