| 摘要 |
This refrigeration apparatus 100 comprises: a first refrigerant circuit 50 which circulates a first refrigerant therethrough; and a second refrigerant circuit 60 which circulates a second refrigerant therethrough. The first refrigerant circuit 50 includes: a first main refrigerant circuit 52 including a first main evaporator 5 of a cascade condenser 18, the first main evaporator 5 heat exchanging the first refrigerant with the second refrigerant so as to evaporate the first refrigerant; and a first sub-refrigerant flow path 54 including a first sub-evaporator 6 of a sub-cool coil 19, the first sub-evaporator 6 being connected in parallel with the first main evaporator 5 and heat exchanging the first refrigerant with the second refrigerant so as to evaporate the first refrigerant. The second refrigerant circuit 60 includes a second main refrigerant circuit 62 which is configured by a second main condenser 8 of the cascade condenser 18 and a second sub-condenser 13 of the sub-cool coil 19 being connected. The second main condenser 8 heat exchanges the second refrigerant with the first refrigerant so as to condense the second refrigerant. The second sub-condenser 13 heat exchanges the second refrigerant condensed by the second main condenser 8 with the first refrigerant and cools the second refrigerant. |
