Compressed air station
AssigneeKaeser Kompressoren SE
InventorsPhil Andre Schneider, Klaus-Ulrich Kobelt
Life of this patent
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Abstract
A compressed air station includes at least two compressed air components that yield waste heat. Each compressed air component is designed either as a compressor, in particular as a screw compressor, or as a refrigeration dryer. The compressed air station includes at least one exhaust air duct for discharging waste heat from a room, and at least one of the compressed air components, namely a refrigeration dryer, is connected to the exhaust air duct, and a further compressed air component is connected to the same exhaust air duct.
Claims14
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 screw compressor or as a refrigeration dryer, and
- at least one first exhaust air duct for discharging waste heat from a room,
- wherein at least one of the at least two compressed air components comprises the refrigeration dryer and is connected to the first exhaust air duct, and wherein the other one of the at least two compressed air components is connected to the first exhaust air duct,
- wherein a compressed air refrigeration heat exchanger is provided within the refrigeration dryer, in which the compressed air is cooled by way of a refrigerant conducted in a refrigerant circuit, wherein the refrigerant circuit comprises a refrigerant compressor, a condenser, an expansion valve and the compressed air refrigeration heat exchanger,
- wherein the compressed air station further comprises a second exhaust air duct comprising a dryer exhaust air duct, which is provided for discharging from the refrigeration dryer a cooling air flow that is conducted through the refrigeration dryer, and which connects a cooling air outlet of the refrigeration dryer to a refrigeration dryer connection on the first exhaust air duct,
- wherein the refrigeration dryer has a fan with a speed-adjustable fan motor, and the fan is designed to convey the cooling air flow even against a backpressure currently prevailing in the first exhaust air duct,
- and wherein the refrigeration dryer has a controller or interacts with a controller, which is configured and designed to actuate the speed-adjustable fan motor of the fan in such a way that the fan compensates for the backpressure prevailing in the first exhaust air duct, so that a volume transported by the cooling air flow per unit of time remains unchanged.
A method for actuating a speed-adjustable fan motor of a fan of a refrigeration dryer within a compressed air station, wherein the compressed air station comprises at least two compressed air components that yield waste heat, wherein each compressed air component is designed either as a screw compressor or as the refrigeration dryer, and at least one first exhaust air duct for discharging waste heat from a room, wherein at least one of the at least two compressed air components comprises the refrigeration dryer and is connected to the first exhaust air duct, and wherein another one of the at least two compressed air components is connected to the first exhaust air duct,
- wherein a compressed air refrigeration heat exchanger is provided within the refrigeration dryer, in which the compressed air is cooled by way of a refrigerant conducted in a refrigerant circuit, wherein the refrigerant circuit comprises a refrigerant compressor, a condenser, an expansion valve and the compressed air refrigeration heat exchanger,
- wherein the compressed air station further comprises a second exhaust air duct comprising a dryer exhaust air duct, which is provided for discharging a cooling air flow that is conducted through the refrigeration dryer, and which connects a cooling air outlet of the refrigeration dryer to another refrigeration dryer connection on the first exhaust air duct,
- wherein the refrigeration dryer has a fan with a speed-adjustable fan motor, and the fan is designed to convey the cooling air flow even against a backpressure currently prevailing in the first exhaust air duct, and wherein the compressed air station comprising the refrigeration dryer, has a controller or interacts with a controller, which is configured and designed to actuate the speed-adjustable fan motor of the fan in such a way that the fan compensates for the backpressure prevailing in the first exhaust air duct, so that a volume transported by the cooling air flow per unit of time remains unchanged.
Dependencies are inferred from the claim text.