| 摘要 |
PROBLEM TO BE SOLVED: To provide a parallel-flow heat exchanger of side flow system, in which water sprinkling to surfaces of the heat exchanger can be easily performed.SOLUTION: A parallel-flow heat exchanger 50 includes two vertical header pipes 51, 52 arranged parallel across a gap and a plurality of flat tubes flatted in the vertical direction 53 for connecting the header pipes 51, 52. A water receiving tank 60 parallel to the flat tube 53 is formed on a top part of the heat exchanger 50, and water dropped down from water conduit holes 61 formed in the water receiving tank 60 flows down along a surface of the heat exchanger 50. A plurality of water conduit holes 61 are arranged at predetermined intervals along a length direction of the water receiving tank 60. Among corrugated fins 55 attached to the flat tube 53, a side sheet 56a attached to the corrugated fin 55 located on the highest position is formed as the water receiving tank 60. |
