COOLING SYSTEM FOR A TRANSPORTING VEHICLE WITH A PLURALITY OF COOLING CHAMBERS

摘要

The present invention relates to an apparatus and a method for cooling at least one chamber (A, B, C,... ) of a transporting vehicle (T) for chilled products by means of a cooling unit (1), preferably a tank (1) for liquid nitrogen or carbon dioxide, in which there is at least one cooling intermediate circuit (4, 11, 12, 13, 14, 15, 16) having a heat exchange medium, the cooling intermediate circuit having a first heat exchanger (4) for cooling the heat exchange medium by means of the cooling unit (1), each chamber (A, B, C,... ) in each case being assigned a second heat exchanger (30A, 30B, 30C,... ) which can be connected on the primary side to the intermediate circuit (4,11, 12, 13, 14, 15,16) and by means of which, on the secondary side, the air in the particular chamber (A, B, C,... ) can be cooled. There are preferably two or more chambers (A, B, C,... ), each having a second heat exchanger (30A, 30B, 30C,... ), wherein the cooling intermediate circuit (4,11, 12, 13, 14, 15, 16) and a heating intermediate circuit (21, 22, 23, 24, 25, 26), preferably having the same heat exchange medium, are arranged and connected in such a manner that each of the second heat exchangers (30A, 30B, 30C,... ) can be connected either to the cooling intermediate circuit (4, 11, 12, 13, 14, 15, 16) or the heating intermediate circuit (21, 22, 23,24, 25, 26). The heating intermediate circuit (21, 22, 23, 24, 25, 26) is particularly preferably connected via heat exchangers (14, 24) and a mechanically or electrically driven heat pump (35) to the cooling intermediate circuit (4, 11, 12, 13, 14, 15, 16) in such a manner that heat can be withdrawn from the cooling intermediate circuit (4, 11, 12, 13, 14, 15, 16) and supplied to the heating intermediate circuit (21, 22, 23, 24, 25, 26). In this manner, even a plurality of cooling chambers of a transporting vehicle are to be kept at any desired different temperatures in an energy-saving manner.