Patent ID: 6675601
Filing Date: 2004-01-13
Classification: F24F,F25B,Y02B

Abstract:
An air conditioner comprising:an air supply passage for introducing outdoor air into a room; an air exhaust passage for exhausting indoor air; a rotary dehumidifier that is a rotary drum structure having an air passage formed of a material impregnated with an adsorbent, the rotary dehumidifier being arranged such that one half thereof is disposed in the air supply passage for dehumidifying by adsorption a supply air which is the introduced outdoor air and the other half thereof is disposed in the air exhaust passage for regenerating the adsorbent with use of exhaust air which is the exhausted indoor air as a heat source; a regenerative heater for heating the exhaust air before flowing into the rotary dehumidifier to a temperature required for regenerating the adsorbent of the rotary dehumidifier; a sensible heat exchanger for causing a sensible heat exchange between the supply air dehumidified at the rotary dehumidifier and the exhaust air before flowing into the regenerative heater; and a refrigerating device operated with a supercritical refrigerating cycle which comprises a high-pressure gas cooling device for cooling a refrigerant in high-pressure side, an expansion valve and an evaporator for cooling the room, wherein an exhaust heat from the high-pressure gas cooling device of the refrigerating device is employed as a heat source of the regenerative heater; and the regenerative heater is the high-pressure gas cooling device of the refrigerating device, and constructed such that the flow of the refrigerant in the high-pressure gas cooling device and the flow of the exhaust air passing through the high-pressure gas cooling device become opposite to each other.