| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hot water storage tank of a hot water storage type water heater such as an electric water heater and a heat pump water heater having a heat insulation structure of excellent in heat insulation performance and in demountability. SOLUTION: There are provided hot water storage can structures 4, 5 to which a plurality of pipelines 8, 9, 10, 11, and 12 are connected, an external casing structures 171, 172, 173, and 174 in which the foregoing hot water storage can structures 4, 5 are accommodated, and a plurality of molded heat insulation members 13, each of which has a recessed portion 14 with a configuration along external contours of the foregoing hot water storage can structures 4, 5 and which surround the external contours of the foregoing hot water storage can structures 4, 5 by bringing the can structure recessed section 14 into close contact with the foregoing hot water storage can structures 4, 5. There is further provided a piping groove portion 16 in surfaces of the plurality of the molded heat insulation members 131, 132, 133, 134, 135, and 136 in contact with each other for accommodating the pipelines 8, 9, 10, 11, and 12 connected to the foregoing hot water storage can structures 4, 5.</p> |
