| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger unit capable of positively performing heat exchange, coping with a heat-exchange fluid of high pressure by directly welding heat transfer parts made of metal sheets, to each other to positively integrate them. SOLUTION: A plurality of heat transfer parts 10 made of metal sheets are arranged in a parallel state, and the peripheral edges of the respective heat transfer parts 10 are welded to each other excluding opening parts for the flow of the heat-exchange fluid while forming a clearance between the respective heat transfer parts 10, thus integrating the respective heat transfer parts 10. Further, a terminal plate 20 is integrally welded to one opening part side end part of each heat transfer part 10 to form the state of surrounding the periphery of one opening part with the terminal plate 20. The respective heat transfer parts 10 can thereby be integrated without interposing a spacer or the like between the head transfer parts 10. The area of a heat transfer face 11 facing the clearance between the heat transfer parts 10, and the opening area of the opening part for the flow of the heat-exchange fluid can be secured as large as possible by the portion of not disposing the spacer or the like, and the mutual connecting strength of the heat transfer parts 10 is improved to cope with even the large pressure difference state of the heat-exchange fluids. Furthermore, the spacing of the heat transfer faces 11 can be kept constant to uniformize heat exchanging characteristics. COPYRIGHT: (C)2003,JPO
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