| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize the whole size of a device by achieving high heat- transfer coefficients in a rational manner in making of ice. SOLUTION: A liquid receiver 1 is connected to an ice-maker 2 through a liquid pipe 3, while a condenser 4 is connected to the ice-maker 2 through a gas pipe 5, and the condenser 4 is connected to the receiver 1 through a pipe 6. A low temperature brine tank 7 is connected to the condenser 4 to feed low temperature, high concentration brine of -10--20 deg.C to the condenser 4, thereby condensing refrigerant gas into liquid. The liquid refrigerant flows down into the receiver 1. The refrigerant is then allowed to naturally circulate through the receiver 1, ice-maker 2, and condenser 4. A heat storing tank 11 is connected to the ice-maker 2 through a feed pipe 9 including a pump 8 and a return pipe 10 to feed refrigerant of low concentration to the ice-maker 2, thereby preparing a liquid containing ice by utilizing heat of vaporization of the refrigerant. The liquid is then sent to the tank 11.
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