| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent degradation of heat efficiency of the entire hot water storage device 1 or 2 while ensuring hot water storage capacity of a hot water storage tank 20 by using the mixed water obtained by mixing the water of high temperatures and the water of normal temperatures in the hot water storage tank 20, in supplying hot water. <P>SOLUTION: This hot water storage device is constituted to supply warm water from a warm water producing means 10 to an upper portion of the hot water storage tank 20, supply the warm water from an upper portion of the hot water storage tank 20, supply the water of normal temperatures to a lower portion of the hot water storage tank 20, and supply the water of normal temperatures from the lower portion of the hot water storage tank 20 to the warm water producing means 10, and comprises a temperature sensor 40 capable of detecting a water temperature in the hot water storage tank 20 at positions continued in the vertical direction, a water intake pipe 30 communicated with a hot water supply pipe 64, vertically disposed inside of the hot water storage tank 20, and capable of moving a water intake port 32 for taking the hot water stored in the hot water storage tank 20 in the vertical direction, and a control means 50 for controlling a vertical position of the water intake port 32 on the basis of the water temperature detected by the temperature sensor 40. <P>COPYRIGHT: (C)2009,JPO&INPIT |
