Cold box for air separation apparatus, has air cleaning unit, separated fluid processing element or air compression unit separated in distillation column, where elements are mounted on external wall of enclosure

摘要

The box (1) has a distillation column (5) inside an insulated enclosure (9), and transmission units (19) transmitting fluid to be separated to the distillation column. A discharge unit (21) discharges the separated fluid from the distillation column. An air cleaning unit (11), a separated fluid processing element (13) e.g. valve, or an air compression unit (15) is separated in the distillation column, where the elements are mounted on an external wall of the enclosure.