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Patent Searching and Data


Title:
熱交換器およびその製造方法
Document Type and Number:
Japanese Patent JP3875270
Kind Code:
B2
Abstract:
PCT No. PCT/FI96/00519 Sec. 371 Date Apr. 3, 1998 Sec. 102(e) Date Apr. 3, 1998 PCT Filed Oct. 2, 1996 PCT Pub. No. WO97/13112 PCT Pub. Date Apr. 10, 1997The method relates to a film heat exchanger and a method for constructing the same. The heat exchanger comprises bags (1) made of film material in order to transfer heat from the steam to be condensated inside the bags to the liquid to be evaporated on the outer surfaces (18) thereof, as well as feed channel arrays for distributing steam (10) and liquid onto the internal and external heat transfer surfaces of the bags. According to the invention, inside the top end (2) of each bag (1), there is provided an essentially straight strip (11) bordering the steam channels (10), to which strip the bag is fastened; in connection with the fastening, the top edge of the bag is pulled straight by bending the bag, so that the middle part of the bag is raised in relation to the sides (12) thereof, and the thus straightened edge is then attached to the strip provided inside the bag. Respectively, the bottom edge (3) of the bag can be cut to be upwardly concave and fastened, after straightening, to a strip (15) fitted inside the bottom end of the bag, and comprising condensate removal channels (14). When straightening the top and bottom edges (2, 3) of the bag, there are created horizontal folds (13) in the film material, which folds serve as an inflation margin while pressurizing the bag.

Inventors:
Lamb-Schmidt Reef
Chainen Berry
Koistinen Peter
Application Number:
JP51399597A
Publication Date:
January 31, 2007
Filing Date:
October 02, 1996
Export Citation:
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Assignee:
Ebara Corporation
International Classes:
F28D3/00; B01D1/22; F28D9/00; F28F21/06
Domestic Patent References:
JP7501393A
JP2972253B2
JP6503266A
JP5149688A
JP63286698A
Foreign References:
WO1979000068A1
Attorney, Agent or Firm:
Isamu Watanabe
Shintaro Hotta
Ryoji Kosugi
Tetsuya Hirosawa