| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water storage tank improved in heat conductivity and reduced in cost thereof, and to provide a hot water supply system having high safety at a low cost. <P>SOLUTION: This hot water tank 2 is provided inside a cylindrical vessel for housing water, and provided with a heat exchanger 31 having an inside pipe 31 wherein the hot water circulates, an outside pipe for surrounding the inside pipe, and a knurled groove 33 formed between the inside pipe and the outside pipe and communicated with outside of the cylindrical container. The heat exchanger 31 is fitted through an opening formed in a bottom part of the cylindrical vessel, and a sensor for detecting a water leakage is provided in a lower end of the heat exchanger 31. This hot water tank 2 is connected to a heat source machine 1 through a circulation pump 5, and the hot water generated by the heat source machine 1 is circulated in the heat exchanger 31 to heat the water flowing into the hot water tank 2. <P>COPYRIGHT: (C)2004,JPO</p> |
