| 摘要 |
PROBLEM TO BE SOLVED: To keep an appropriate amount of a refrigerant circulated in a refrigerant circuit and to prevent an overload operation of a compressing means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side. SOLUTION: This refrigerating apparatus R which obtains the supercritical pressure on the high pressure side, includes a refrigerant amount regulation tank 100 connected to the high pressure side via a communicating circuit 101, a communicating circuit 103 which connects an upper part of the tank to a medium pressure region, a communicating circuit 105 which connects a lower part of the tank to the medium pressure region, an electromotive expansion valve 102 of the communicating circuit 101, a valve device 104 of the communicating circuit 103, a valve device 106 of the communicating circuit 105, and a control means C for controlling these valves to collect a refrigerant circulated in the refrigerant circuit into the tank and discharging the refrigerant to the refrigerant circuit 1. COPYRIGHT: (C)2011,JPO&INPIT |
