| 摘要 |
A system (11) for storing and cooling milk comprises a cooling tank (12) provided to store milk (13), a first sensor (15) provided to monitor the filling level (L) of milk in the cooling tank, and a cooling arrangement for cooling the milk in the cooling tank comprising a cooling device (16), a second sensor (17), and a control device (18), wherein the cooling device comprises an evaporator (19), a varying capacity modulated scroll compressor (20) connected with its suction side (20a) to the evaporator, a condenser (21) connected to the high pressure side (20b) of the compressor, and an expansion valve (22) interconnected between the condenser and the evaporator, thereby forming a closed circuit, in which a refrigerant can be circulated. The second sensor is provided to monitor a parameter indicative of the pressure (P) at the suction side of the compressor, and the control device is operatively connected to (i) the first sensor to receive the monitored filling level of milk in the cooling tank, (ii) the second sensor to receive the monitored parameter indicative of the pressure at the suction side of the compressor, and (iii) the compressor to control the capacity thereof in response to the monitored filling level of milk in the cooling tank and the monitored parameter indicative of the pressure at the suction side of the compressor. |
