MEMBRANE MODULE Russian patent published in 1995 - IPC

FIELD: separation of liquid blends. SUBSTANCE: membrane module has a package of tubular membrane members in the form of porous tubes with a membrane applied to the external surface. The members are fastened in tube sheets and enclosed in a case provided with inlet pipe branches for liquid being cleaned up, concentrate outlet and pipe branches for permeate outlet made on the lids. Spherical lugs are made on case walls. The first lug is placed on the side opposite to the pipe branch for inlet of the liquid being cleaned up. The lugs may be made in the form of segments secured to the internal surface of the case. The porous pipes have flat sections turned around each other. The membrane members are fastened in tube sheet with union taper nut or taper threaded sleeves. EFFECT: highly efficient filtering. 5 cl, 10 dwg