| 摘要 |
PURPOSE: A system is provided to achieve an improved refrigerating rate and capacity while arranging in serial a plurality of cooling channels in a single refrigerating machine and allowing a secondary refrigerant to sequentially circulate through each of cooling channels. CONSTITUTION: A system comprises an absorber vessel(101), a gas loop for circulation of gas, an absorption solution loop for circulation of H2O, a plurality of ammonia refrigerant loop having a plurality of evaporators(114-117) arranged in parallel, and a plurality of cooling channels consisting of a plurality of heat exchanger chambers(118-121) for heat exchange operation between the evaporators and a secondary refrigerant, wherein the secondary refrigerant sequentially circulates through the heat exchange chambers of each of cooling channels for obtaining a sequential cooling.
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