Patent ID: 10456007

Abstract:
A conveyor dishwasher (1) has at least one wash zone (11, 12) in which wash liquid is sprayed onto the washware, at least one final rinse zone (14) in which final rinse liquid is sprayed onto the washware and a waste air system (20) for discharging waste air from the conveyor dishwasher (1). To save energy and maintain hygiene performance, a waste water heat recovery system (25) is provided for transferring at least a portion of the thermal energy in the waste water from the conveyor dishwasher (1) as useful heat to the final rinse liquid and a waste air heat recovery system is further provided for transferring at least a portion of the thermal energy in the waste air which is discharged or is to be discharged from the conveyor dishwasher (1) as useful heat to at least the final rinse.