Cryogenic vacuum-insulated oxygen generator efficient for small-scale ultra-pure on-site use

摘要

A cryogenic vacuum-insulated oxygen generator is used for the on-site fractionated distillation of air. A cryogenic vacuum-insulated oxygen generator is used for the on-site fractionated distillation of air. The liquid oxygen reservoir (6) is linked to the rectification column (1) by a feed pipe (7) the discharge pressure point of which to the reservoir (6) is variable. In normal operation the feed pipe (7) is connected above the condenser (4) near the upper pressure column rectification components. During start-up it (7) is connected above the lower mid-pressure column rectification (1) components.