Printing press heat utilization process involves taking cooling air for vacuum pumps or compressors into circuit and cooling heated air in heat exchanger

摘要

The heat utilization process for a printing press (4) involves taking the cooling air for the vacuum pumps (3) or compressors (2) into a circuit. The heated exhaust air and heated cooling air from the vacuum pumps or compressors is cooled in a heat exchanger (8, 10, 11) and is used to heat the separate drying air.