Title:
【発明の名称】プレート熱交換器
Document Type and Number:
Japanese Patent JP2003508714
Kind Code:
A
Abstract:
The present invention concerns a plate heat exchanger for at least two heat exchanging fluids which is permanently joined with at least one sealing portion and has heat transferring plates (1-8), at least two end plates and inlet and outlet organs for the heat exchanging fluids. The core of plates includes alternating heat transferring plates (1-4) and intermediate heat transferring plates (5-8) between the alternating plates. Adjacent plates form a double wall plate unit. The plate elements are permanently joined with each other in a plurality of points having spaced apart areas. For each one of the double wall units, ridges (9) and valleys (16) on the alternating plate (1-4) are in tight contact with the corresponding ridges (9) and valleys (10) on the intermediate plates (5-8) except right at at least one of the points with the spaced apart areas.
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Inventors:
Lindholm, Ingval, Helje, Birger
Application Number:
JP2001520054A
Publication Date:
March 04, 2003
Filing Date:
June 08, 2000
Export Citation:
Assignee:
Alfa Laval Activola Get
International Classes:
B23K1/00; F28D9/00; F28F3/04; F28F3/08; (IPC1-7): F28F3/08; F28F3/04
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)