LIQUID REFRIGERATING APPARATUS FOR REFRIGERATING DEVICE

PROBLEM TO BE SOLVED: To surely obtain a specified liquid super-cooling degree by a method wherein a by-pass circuit is provided on a refrigerant liquid piping, and a liquid refrigerating apparatus which refrigerates a refrigerant liquid by vacuumizing one part of the refrigerant liquid of a high pressure, of the total refrigerant circulation amount, and evaporating it, with the evaporation latent heat, is provided for the refrigerating of the refrigerant liquid. SOLUTION: This liquid refrigerating apparatus also works as a receiver tank 4, and a refrigerant liquid stays inside. Also, at a lower part in the liquid refrigerating apparatus 3, a refrigerating pipe 7 is provided, and normally, the refrigerating pipe 7 is immersed in the refrigerant liquid. When a compressor suction gas of a low temperature passes through the refrigerating pipe 7, the gas heat-exchanges with the liquid staying in the liquid refrigerating apparatus 3, and the liquid is super-cooled. By this method, the specified super-cooling degree of the refrigerant liquid can be stabilized, and a flush gas in the liquid piping can be prevented from generating, and a stable operation state can be obtained.