| 摘要 |
PURPOSE:To make it possible to recover waste heat contained in hot waste water at a low installation cost and without generating a problem relating to an area required for installation by storing hot waste water delivered to a bathtub provided with heat insulating means and shifting its temperature energy to a high temperature storage tank by a heat pump. CONSTITUTION:High-temperature water at the upper part of a laminated high- temperature water storage tank 1 is supplied to a space heating apparatus 4, a hot water supplier 5 and the like, medium-temperature water at the louver part of the laminated high-temperature storage tank 1 is supplied to a bathtub 7, a washing machine and the like. An evaporator 10 of a heat pump 9 is provided within a bathtub 7, and a condenser 11 is provided in the laminated high-temperature water storage tank 1. The heat pump 9 is driven by midnight power 14 to recover waste heat from hot waste water after being used for bathing to the laminated high-temperature hot water storage tank. At the time of stopping the space heating, hot water remaining in the space heating device 17 is shifted to the bathtub 7 to recover waste heat by the heat pump 9. An electric heater 15 for heating is provided in the laminated high- temperature hot water storage tank 1 and is heated by midnight power, and when the quantity of supply hot water is short, it is possible to carry out additional burning. |
