| 摘要 |
PROBLEM TO BE SOLVED: To raise efficiency in operating a freezing apparatus in conjunction with preventing the return of liquid by performing gas/liquid separation fo a liquid refrigerant flowing out from evaporators in a non-evaporation state, collecting them, and, then, consuming a heat quantity possessed in the liquid refrigerant for cooling a merchandise storage chamber, so as to reduce energy loss. SOLUTION: The merchandise storage 1 is divided into a plurality of merchandise storage chambers 4A-4C, the evaporators 8A-8C are arranged in the respective chambers, and then, the inner part of the storage is cooled in the in-storage cooling device of a vending machine. Each evaporators are connected in parallel to a condensing unit so as to constitute a freezing cycle. Then control is performed to supply the refrigerant to the evaporators from the condensing unit in response to a hot/cold sale mode in each chamber. Suction accumulators 19A-19C inserted to an intake duct 17 between the evaporator of each chamber and a compressor are arranged inside the storage as a liquid return preventing means with respect to the compressor 11 of the condensing unit. Thus, a non-evaporation refrigerant by gas-liquid separation is heat-exchanged with in-storage air, so as to cool the inner part of the storage. COPYRIGHT: (C)2005,JPO&NCIPI
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