| 摘要 |
<P>PROBLEM TO BE SOLVED: To produce hot water about 90°C in utilizing condensation heat of a refrigerating device comprising an ice thermal storage tank as a heat source of a heat pump for CO<SB>2</SB>hot water supply, and to stably supply hot water throughout the year regardless of season, cold region and the like. <P>SOLUTION: This heat pump device 20 for CO<SB>2</SB>hot water supply applying CO<SB>2</SB>as a refrigerant and producing hot water h1 by utilizing condensation exhaust heat of the refrigerating device 10 comprising the ice thermal storage tank 12 as the heat source, includes a hot water storage tank 22 for storing the produced hot water h1, sensors 31, 32 detecting an ice thickness or a water temperature in the ice thermal storage tank 12 of the refrigerating device 11, and a control device 33 for controlling the refrigeration load capacity of the refrigerating device 11 on the basis of detection values of the sensors, and the control device 33 is constituted to control the refrigeration load capacity of the refrigerating device 10 so that the ice thermal storage tank 12 does not have a full-ice condition until the temperature of the hot water h1 in the hot water storage tank 22 reaches a set temperature. <P>COPYRIGHT: (C)2010,JPO&INPIT |
