| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that in the prior art construction successive cooling over a long period of time can not be performed. SOLUTION: A closed circuit is provided as a constituent requirement, with: a liquid reservoir 16 for reserving a refrigerant 9; pressure reduction means 17 connected to the liquid reservoir 16; a vaporizer 8 for vaporizing the refrigerant reduced in pressure by the pressure reduction means 17; a plurality of absorptive regenerators 1a, 1b connected to the vaporizer 8 through a plurality of opening/closing valves 13a, 13b; outlet opening/closing means 14a, 14b provided on the side of outlets of the plurality of the absorptive regenerators 1a, 1b; and a condenser 4 for condensing a refrigerant passing through the outlet opening/closing means 14a, 14b. A control device 19 alternately controls the operations of the plurality of the absorptive regenerators 1a, 1b. |
