| 摘要 |
Refrigerating capacity control for refrigerators for the cooling of agricultural bulk materials, e.g. cereals in silos or bulk halls, the refrigerator cooling the fresh air supplied in an evaporator (3) of a refrigerating circuit. Arranged in the pipe (4) for the cold air connected to the evaporator (3) is a temperature sensor (12). This acts on a control (13) which, in the event of the deviation of the temperature of the cold air from a set value, brings about the displacement of an air flap (15) in the supply pipe (2) from the cold-air fan (1) to the evaporator (3), if the ambient air has a higher value than the refrigerating capacity of the refrigerator is capable of applying. …<??>If the ambient air has a lower value, the control (13) acts via a servomotor (16) on a throttle valve (17) arranged in the suction line of the refrigerant compressor (5) in such a manner that the refrigerant flow is throttled. The refrigerant quantity flow actuator (16, 17) and the volume flow actuator (14, 15) are electrically interlocked so that only one actuator is operational in each case. …<??>With the aid of such a control, it is ensured that, at all ambient temperatures, the capacity of the refrigerant compressor (5) in the refrigerator is accurately adapted to the ambient air to be cooled and thus a refrigerated preservation of the bulk material is achieved in an economical manner. … <IMAGE> … |
