How the Aircel MDD Works
Aircel MDD is designed to provide a
smooth, controlled, uninterrupted delivery of dry compressed
air.
Wet air passes through a pre-filter and
travels down to the bottom valve assembly. The air is then fed
through the bottom of the desiccant bed and moves through the high
performance desiccant until it becomes dry. On exit from the
desiccant cartridge, the air is passed through the outlet valve
assembly.
During this process, the dryer control
system cycles the process air between the two desiccant towers.
While one chamber is on stream removing water vapour, the other is
being carefully depressurized in preparation for regeneration. The
desiccant bed is regenerated by expanding a small amount of dry
process air, or purge air, through the saturated desiccant.
Purge air passes to the atmosphere
through the silencer, which is fitted to an exhaust valve. The
chamber is then repressurized, with the control system assuring
each chamber is at full operational pressure prior to changeover.
This ensures a reliable and efficient operation. The air stream is
switched and the cycle repeats on a continuous basis
