Cross-counter-stream module for heat or mass exchange

Heat exchange – Casing or tank enclosed conduit assembly – With distinct flow director in casing

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Details

165905, 2103211, 210456, F28D 700, F28F 922, B01D 1300, C02F 144

Patent

active

046499911

ABSTRACT:
A cross-counter-stream module for material and/or heat exchange done with a hollow filament bundle cast into a housing at its ends and a mechanism for conducting the material flow to the outside of the hollow filaments. The hollow filaments are cast at their ends as a stack into a housing, the stack being composed of one or more layers which consist of strata of hollow filaments fixed in a plane through cross-pieces transverse to their lumen directions, the cross-pieces being arranged tightly superimposed at all locations inside one layer, disposed at predetermined constant intervals, with the intermediate spaces between the hollow filaments filled by the cross-pieces at the places of crossing, and with the cross-pieces composed of a polymer with a melting point from 80.degree. to 190.degree. C. and a residual adhesion at room temperature. Preferably, the polymer is a polyamide, a polyethylene, a copolymer of polyethylene and vinyl acetate, or a copolyether-ester. Preferred embodiments include that the cross-pieces display a substantially round cross-section; that the cross-piece diameter correspond to 1.5 to 4 times the hollow filament diameter; that the cross-pieces are put in as warp; that the stack is composed of several layers; that the intervals between adjacent cross-pieces amount to 1-20 cm; and that the cross-piece intervals in different layers form whole number ratios.

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