| 摘要 |
PROBLEM TO BE SOLVED: To maximize the heat exchange efficiency of a coil without any waste by separately inserting a heat transfer pipe into a pair of divided fin groups and connecting both heads and each heat transfer pipe in parallel so that the flow of a heating medium is divided. SOLUTION: A heat exchange coil for air-conditioner entirely forms an annular shape, a group of fins are divided at the half, each of headers 3 is provided opposingly at one divided gap part and the other divided gap part, at the same time a heat transfer pipe 2 is separately inserted into a pair of divided fin groups 1 and 1, and both the headers 3 and 3 and each heat transfer pipe 2 are connected in parallel, thus dividing the flow of a heating medium. The divided fin groups 1 are formed by placing a number of plate fins 4, 4... side by side. The heat transfer pipes 2 are in a plurality of rows and are formed so that a counter flow is formed in a zigzag in a row direction (a ventilation direction A), and opening end parts at the leeward side of the heat transfer pipe of each stage of each of the divided fin groups 1 are connected to the heating medium entrance side headers 3.
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