MEMBRANE APPARATUS (VERSIONS) Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: given membrane apparatus has tubular membrane members, face covers with feed and discharge branch pipes. In agreement with first version tubular membrane members are assembled into modules mounted one on another by means of rectangular frames. Holes for leak-tight attachment of faces of membrane members and uniaxial holes perpendicular to them used to form collection and distribution channels are made in two opposite sides of frames. In compliance with second version collection and distribution channels are formed by manufacture of slit-shaped slots in frames. EFFECT: simplified design, facilitated manufacture and reduced labour input. 2 cl, 7 dwg