Title:
HEAT EXCHANGER AND REFRIGERATION SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2019100563
Kind Code:
A
Abstract:
To provide a heat exchanger improved in corrosion resistance in a joint portion between plate fins, and a refrigeration system using the same.SOLUTION: A plate fin 2a is formed by joining an annular protrusion part 16 for a header flow passage and a pair of plate-like members 6a, 6b including a recess groove for a heat transfer flow passage. The plate fin 2a forms a sacrificial anticorrosive layer 14 on the surface side, and a folding piece 16a is provided at a tip portion of the annular protrusion part 16, and by folding of the folding piece 16a, non-sacrificial anticorrosive faces which become the surface side are integrally joined while facing with each other. Thereby, the annular protrusion part which is integrally joined with the plate fins reduces the risk of corrosion as a joint of non-sacrificial anticorrosive surfaces with each other, while the surface on the surface side of the plate fin where condensate water generates maintains corrosion resistance as a surface with the sacrificial anticorrosive layer. Thus, corrosion resistance can be improved.SELECTED DRAWING: Figure 6
Inventors:
NAGOSHI KENJI
YAMAMOTO KENSHO
HIROTA MASANORI
YAMAMOTO KENSHO
HIROTA MASANORI
Application Number:
JP2017228541A
Publication Date:
June 24, 2019
Filing Date:
November 29, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F28F3/08; F25B39/00; F28D9/00; F28F3/04; F28F19/00; F28F19/06
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura