| 摘要 |
A refrigeration apparatus includes two sub passages 11, 11 which are branched from a main passage 10 located between a condenser 2 and an expansion part 3 and which are connected to a compressor 1. On the sub passages 11 are provided supercooling-use expansion parts 12, and supercooling-use heat exchangers 13 for performing heat exchange between a refrigerant on an outlet side of the supercooling-use expansion part 12 and a refrigerant of the main passage 10. Therefore, each time the refrigerant of the main passage 10 passes through the two supercooling-use heat exchangers 13, 13, the degree of liquid supercooling of the refrigerant can be increased. Thus, there is provided a refrigeration apparatus capable of further increasing the degree of liquid supercooling of the refrigerant immediately before the expansion part 3 and thereby improving the refrigerating capacity and energy efficiency. |
