Cross-counter-stream module for heat or mass exchange

US4649991A · kind A · utility

Assignee

• Akzo N.V. · NL

Inventors

• Clemens Neuhaus · Zell am Harmersbach, DE
• Rudiger Lucks · Obernburg, DE
• Hans G. Breidohr · Wuppertal, DE
• Gerhard Wick · Obernburg, DE

Key dates

• Filing date: Dec 22, 1981
• Grant date: Mar 17, 1987
• Expiry date: Dec 22, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S165/905
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

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…