HEAT EXCHANGER

• Main Authors: ISODA KATSUHIRO, MATSUDA YUKIO, KOSHIBA YUKI, MATSUMURA NORIAKI, YAMASHITA KENJI, ARIYAMA MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2018
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PROBLEM TO BE SOLVED: To increase heat transfer area in a heat exchanger.SOLUTION: A first fin plate 9 presents a V-shaped waveform shape and has a top part wall 31, a bottom part wall 32 and a leg part 33 for connecting the top part wall 31 and the bottom part wall 32. The leg part 33 presents a rectangular waveform shape along the top part wall 31 and the bottom part wall 32, and has a step wall 34 formed at every constant interval along the top part wall 31 and the bottom part wall 32, and an opening 35 formed at the step wall 34. The opening 35 is a slender through-hole with width t1 which is equal to or less than plate thickness of the first fin plate 9. Thereby, the step wall 34 can be made relatively small. Therefore, the first fin plate 9 can reduce an interval when repeatedly folded, and a heat transfer area can be increased.SELECTED DRAWING: Figure 6 【課題】熱交換器における伝熱面積を増加させる。【解決手段】第１フィンプレート９は、Ｖ字形の波形形状を呈し、頂部壁３１と、底部壁３２と、頂部壁３１と底部壁３２とを連結する脚部３３と、を有する。脚部３３は、頂部壁３１及び底部壁３２に沿って矩形の波形形状を呈し、頂部壁３１及び底部壁３２に沿った一定間隔毎に形成された段差壁３４と、段差壁３４に形成された開口部３５と、を有している。開口部３５は、第１フィンプレート９の板厚以下となる幅ｔ１の細長い貫通穴である。これにより、段差壁３４を相対的に小さくすることができる。そのため、第１フィンプレート９は、繰り返し折り曲げる際の間隔を小さくすることができ、伝熱面積を増やすことができる。【選択図】図６