| 摘要 |
The utility model discloses a heat exchanger for hot water supply. The heat exchanger (30) for hot water supply comprises a water tank (31) and a heating heat transfer pipe (40) wound on the water tank (31), wherein the heating heat transfer pipe (40) is divided into multiple heating zones (51, 52 and 53) in the vertical direction, the multiple heating zones (51, 52 and 53) are respectively provided with multiple refrigerating fluid flow paths (46) in which refrigerating fluid flows in parallel, and the number of the refrigerating fluid flow paths (46) decreases from the upper heating zone (51) to the lower heating zone (53). Therefore, the heating capacity of the heating heat transfer pipe wound on the water tank can be improved. |
