Thermal fixing unit - has pre-warmed air fed to recirculating system to block suction of fresh air

摘要

The recirculating hot air system used partic. for thermal fixing of piece goods, is fed with pre-warmed air to prevent fresh air from being drawn in by suction. The system cuts energy costs and prevents the loss of hot air from the equipment. Specifically pre-warmed air is fed into the recirculating system for the hot air at the point where there is relatively the maximum underpressure. In this zone, there is a heat exchanger with a channel to lead the heated air to the recirculating system at the section with the lowest pressure.