Manufacture of needle-like fin type heat exchanger

Abstract

Abstract PURPOSE:To obtain a needle-like fin type heat exchanger which is capable of expanding a heat transfer area, by repeatedly moving up and down each half number of thin diameter lines every other line, and insert-sticking and interpose-holding a needle-like fin group being in a state that the thin diameter line is interposed by folding thin plates inserted into this opening part, between a heat transfer pipe. CONSTITUTION:A thin diameter line 2 whose heat transfer rate is large such as Al, etc. is placed in order to match one fin pitch P1 of a needle-like fin group 3, and the tip part is held by 2 plates 6. Subsequently, on the way of the line 2, an up-and-down mechanism 7 which is capable of moving each line 2 up and down, and also simultaneously driving up and down half of the total number of lines by interlocking one line each alternately is provided. Subsequently, the line 2 is set to an opened state by moving the half upward and the half downward alternately by 1 line each of the line 2, and a thin plate 9 is inserted into this opening part 8. After that, the up and down of the line 2 of each half number are converted, and in this case, when the group 3 is placed in zigzag, another thin plate 10 is positioned. Subsequently, the operation for moving up and down each half of the line 2 alternately is repeated, the thin plate 9 is inserted into the opening part 8, and after that, a needle-like fin group 11 and a heat transfer pipe 1 are brazed, and the thin plates 9, 10 are drawn out.

Inventors

• 👤 Hiroshi Kobayashi
• 👤 弘 小林

Bibliographic Details