WATER TANK FOR HEAT PUMP WATER HEATER

摘要

Disclosed is a water tank for a heat pump water heater, which includes a water tank liner (10); the water tank liner (10) includes an intermediate barrel (100) and a lower seal head (102) provided at the bottom of the intermediate barrel (100); the intermediate barrel (100) is wound with a first heat pump coil pipe (11); and at the bottom of the lower seal head (102) of the water tank liner (10) there is a chamber formed by recessing towards the inside, the chamber being provided internally with a second heat pump coil pipe (12) fitted closely against an inner wall and with a fitting mechanism (15, 16) for fixing the second heat pump coil pipe (12). In this way, the fixing of the coil pipes at the bottom side of the liner is achieved without any influence on the heat exchange efficiency.