| 摘要 |
A Refrigerating system (2) comprises a refrigerating circuit (4) having, in flowing direction, a compressor (8), a gas cooler (10), a first expansion device (12), an intermediate pressure container (14), a second expansion device (16), an evaporator (18) and refrigerant conduits (22, 24, 26, 28, 30, 32) circulating a refrigerant therethrough. The first expansion device (12) expands the refrigerant to an intermediate pressure level. A first refrigerant conduit (22) of the refrigerant conduits (22, 24, 26, 28, 30, 32) connects the compressor (8) and the gas cooler (10), and a second refrigerant conduit (24) of the refrigerant conduits (22, 24, 26, 28, 30, 32) connects the gas cooler (10) and the first expansion device (12), the first refrigerant conduit (22), the gas cooler (10), and the second refrigerant conduit (24) forming a transcritical portion of the refrigerating circuit (4). The refrigerating system (2) further comprises a desuperheating unit (6), being in a heat exchange relationship with at least a part of the second refrigerant conduit (24), thereby desuperheating the refrigerant. |
