B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/29
B01D 53/26 (2006.01)
Patent
CA 1090561
METHOD AND APPARATUS FOR PRODUCING DRY COMPRESSED AIR FOR ELECTRICAL GEAR Abstract of the Disclosure An apparatus and a method for producing dry, compressed air to be used for electrical switchgear, es- pecially for high-tension switchgear, is disclosed in which humidity is extracted from the air in a subsequently arranged sorption dryer, with one portion of the dried air being used to regenerate a drying agent of the drying apparatus. The drying apparatus includes a cylindrical inner housing which is used for the pre-drying of the air, an outer housing which surrounds the former in jacket form for the final drying and a desorption volume. An electric heating rod protrudes con- centrially into the inner housing and is covered by either a baffle device or a pipe so that a ring-gap is created between two components, with the ring-gap divided into two halves. The air is pre-dried in the first drying chamber prior to its entry into the compressor, with the temperature of the air being kept above the dew point during compression and cooling. The air is then heated prior to a second or final drying process with the remaining moisture being removed during the course of this drying process so that the entire humidity of the air is extracted in the steam phase.
295567
Bbc Brown Boveri & Company Limited
Swabey Ogilvy Renault
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