Compressed air station

Abstract

The invention relates to a compressed air station comprising at least two compressed air components that yield waste heat, wherein each compressed air component is designed either as a compressor, in particular as a screw compressor, or as a refrigeration dryer, and at least one exhaust air duct (13) for discharging waste heat from a room, wherein at least one of the compressed air components, namely a refrigeration dryer, is connected to the exhaust air duct (13), and wherein a further compressed air component (11) is connected to the same exhaust air duct (13), wherein a compressed air refrigeration heat exchanger (23) is provided within the refrigeration dryer (12), in which the compressed air is cooled by way of a refrigerant conducted in a refrigerant circuit (24), wherein the refrigerant circuit (24) comprises a refrigerant compressor (25), a condenser (26), an expansion valve (27) and the compressed air refrigeration heat exchanger (23), wherein the compressed air station further comprises a dryer exhaust air duct (15), which is provided for discharging from the refrigeration dryer (12) a cooling air flow that is conducted through the refrigeration dryer (12), and which connects a cooling air outlet (19) of the refrigeration dryer (12) to a refrigeration dryer connection (16) on the exhaust air duct (13), wherein the refrigeration dryer (12) has a fan (20) with a speed-adjustable fan motor (21), and the fan (20) is designed to convey the cooling air flow even against a backpressure currently prevailing in the exhaust air duct (13), and wherein the refrigeration dryer (12) has a controller or interacts with a controller, which is configured and designed to actuate the speed-adjustable fan motor (21) of the fan in such a way that the fan (20) compensates for the backpressure prevailing in the exhaust air duct (13), so that a volume transported by the cooling air flow per unit of time remains unchanged.

Dependencies are inferred from the claim text.