| 摘要 |
PROBLEM TO BE SOLVED: To solve problems in a conventional refrigerating air conditioner that it is difficult to effectively utilize heat, and the refrigerating cycle must be stopped when a component is broken, depending on whether air conditioning, refrigerating and freezing are completely independently constituted, or constituted by one refrigerating cycle, and further the refrigerating air conditioner is not effective except for a heating time of the air conditioning with respect to a constitution having two independent flow channels respectively comprising a compressor and a heat exchanger, and each of the refrigerants exchanges heat with the surrounding air while exchanging the heat by a third heat exchanger. SOLUTION: This refrigerating air conditioner comprises a first refrigerating cycle for air conditioning comprising a plurality of throttle means where a first refrigerant is circulated, and the first refrigerant flows in series, a second refrigerating cycle for cooling articles where a second refrigerant is circulated, a refrigerant-refrigerant heat exchanger where the first refrigerant exchanges the heat with the second refrigerant, and an air conditioning-side connection pipe for connecting the flow channel between the plurality of throttle means of the first refrigerating cycle and the refrigerant-refrigerant heat exchanger. COPYRIGHT: (C)2006,JPO&NCIPI
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