PURPOSE: To provide a more efficient absorption type freezing cycle device by a method wherein a thermal radiation from a liquid-liquid heat exchanger to a surrounding air is reduced to improve a heat recoverying efficiency.
CONSTITUTION: A dilute solution of high temperature from a generator 2 heated by a heater 7 in an absorption type freezing cycle device 1 flows through an inner pipe 12 of a double-piped liquid-liquid heat exchanger 9, and concentrated solution of low temperature directed toward the generator 2 flows between the outer pipe 13 and the inner pipe 12 of the liquid-liquid heat exchanger 9. Accordingly, the heat of the dilute solution of high temperature is not directly radiated to the surrounding air, but given to the concentrated solution of low temperature. With such an arrangement, the absorption type freezing cycle device 1 has an improved thermal recoverying efficiency and then a higher cycle efficiency can be attained.
MINATO KAZUAKI
OKUDA HIDEAKI
