B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 1/28 (2006.01) B01D 1/22 (2006.01) F28F 21/06 (2006.01)
Patent
CA 2098289
The invention relates to.a distillation apparatus (1) which is suitable in particular far the distillation of sea water into fresh water. The apparatus com- prises a plurality of flat, bag-like elements (3) formed from a thin film material such as plastic film and placed one against the other; the elements serving as heat exchangers between a vaporizing liquid flowing along the exterior surfaces of the element and a condensing vapor directed to the inside of the element, and a compressor (15) for increasing the pressure and temperature of the generated vapor before it is directed to the inside of the elements. The essential idea of the invention is that the inside of each element (3) is divided into parallel vapor ducts. (12) extending vertically from one end of the element to the other, into which ducts the vapor is fed from apertures (25) at the upper edge of the ele- ment. At the upper end of each element (3) here may be a honeycomb-struc- tured end strip (4) which contains parallel ducts (25) separated from each other by partition walls; the. ducts feeding vapor to the inside of the element over the entire width of the element end. The strip (4) may also contain similarly formed ducts (26) which direct the liquid to be evaporated over the entire width of the element surface: At the lower end of the element there may additionally be a honeycomb-structured end strip (7) for collecting the produced distillate and for removing any unvaporized liquid.
Koistinen Peter
Rantala Reijo
Aquamax Oy
Ebara Engineering Service Co. Ltd.
Smart & Biggar
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