OMEGA AIR B-DRY 1000, Инструкция по установке и эксплуатации

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4 Description of Operation
Adsorption dryer is intended for removal of water vapor from the inlet compressed air in order
to reach a desired dew point at the outlet.
During normal operation of the adsorption dryer the non-dried compressed air enters the
adsorption dryer through the inlet and passes through the appropriate inlet control valve into
a tower (pressure vessel filled with adsorbent) where the process of adsorption is in progress.
In the tower the air passes the molecular sieve which removes the water vapor content
through the process of adsorption. After leaving the tower the dried compressed air leaves
the adsorption dryer through the outlet.
If a process of regeneration is underway in the second tower then part of the dried air is lead
through a nozzle into the tower where the regeneration is in progress. There the air that has
been dried and heated through the process of adsorption expands after leaving the nozzle and
passes the molecular sieve. Through the process of desorption the water vapor content gets
released from the molecular sieve and is carried by the air through the appropriate release
control valve after which it is discharged from the system.
After a set time (in case of dew point dependent control adsorption time can be up to 2 hours)
the adsorption in the first tower is stopped and the control valves are run through a sequence
that pressurizes both towers and starts the adsorption in second tower and regeneration in
the first tower.
Time of regeneration is constant and does not change. The dried air used for regeneration is
released which means that while the regeneration is in progress the adsorption dryer operates
at a lower efficiency. In most operating conditions the adsorption process can run for a longer
time than the time that is needed to regenerate the tower. Consequently although times of
regeneration and adsorption can be equal, in most operating conditions it is more economical
that the adsorption time is longer since such operation can greatly increase the efficiency of
the adsorption dryer.
B-DRY adsorption dryers can operate in fixed cycle mode or in energy saving dew point
dependent cycle mode. In fixed cycle mode length of cycle is normally 10min. In dew point
dependent cycle mode length of cycle is automatically adjusted and can be up to 2 hours.
If the compressed air station shuts down, a stand-by signal is received or the adsorption dryer
gets disconnected from the power supply both adsorption dryer inlet control valves open
while both release control valves are closed so the air can flow from inlet through the towers
to the outlet. After the start signal is received or power returns the adsorption dryer continues
where it has stopped.
* For more information contact your supplier.