HEAT RECOVERY UNIT AND HEAT RECOVERY SYSTEM OF BUILDING UTILIZING IT

摘要

A system for recovering the cooling/heating heat efficiently at the time of ventilation and is applicable even to a general house. A centralized fan (110) is coupled through a suction/exhaust pipe with a heat exchanger (120) and the heat of warmed exhaust gas from each room is recovered by means of the heat exchanger (120) before being discharged to the outside from the centralized fan (110) via the heat exchanger (120). On the other hand, the heat exchanger (120) is coupled with a tank (130) through a plumbing pipe and water pumped up from the tank (130) by means of the pump (140) is warmed through the heat exchanger (120) before being returned to the tank (130). The heat exchanger (120) cools exhaust gas from the centralized fan (110) using a Peltier element and heats up the water in the tank (130) so that the heat of air from each room transfers to water efficiently, as a whole. Since heat is transferred efficiently through a Peltier element, temperature of water from the heat exchanger can be set higher than that of the exhaust gas.