| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat exchanger including a sub heat exchange region and a main heat exchange region, for preventing the occurrence of corrosion in connection pipelines due to water droplets produced with heat exchange operation.SOLUTION: A main heat exchange region (65) has heat exchange parts (66a-66f) the number of which is greater than the number of a plurality of heat exchange parts (68a-68c) of a sub heat exchange region (67). The plurality of heat exchange parts (68a), (68b), (68c) of the sub heat exchange region (67) are connected through connection pipelines (110), (120), (130) to the plurality of corresponding heat exchange parts (66a, 66b), (66c, 66d), (66e, 66f) of the main heat exchange region (65), respectively. The connection pipelines (110), (120), (130) include a plurality of branch pipes (112a, 112b), (122a, 122b), (132a, 132b) which are brazed to one another in whole sections (L1) extending in parallel to one another, respectively.</p> |
