Heat exchange unit and heat exchanger using the heat exchange unit

摘要: A heat exchange unit and a exchanger having simple structures which can be manufactured at low cost are provided. The capacity efficiency of the set in accordance with conditions. Heat tubes 2 4 coiled predetermined gaps to form elements B, respectively. B shifted from each other so that do not overlap other. connected connection pipe 6 inner ends thereof. Fluid enters element an inlet header 12, flows into through center A, then out outlet 14. is collected during this time.