| 摘要 |
Refrigeration facilities having a plurality of refrigerating cycles. Each of the refrigerating cycles comprises a compressor, a condenser for condensing refrigerant discharged from the compressor, a reservoir for holding refrigerant coming from the condenser, and an evaporating unit consisting of an expansion device and an evaporator. The expansion device throttles refrigerant coming from the reservoir and expands it into the evaporator, while the evaporator evaporates the refrigerant into a suction line of the compressor. The refrigerating cycles are arranged in parallel and the evaporators are connected to form a liquid path, through which a liquid stream flows in series to be chilled in the evaporators, as well as to form a refrigerant path for a refrigerant stream of each refrigerating cycle, individually. Further, the refrigerating cycles are arranged in order form a high evaporating temperature of refrigerant to a low one along the liquid path from the upstream to the downstream portion thereof.
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