How it works!
Compressed air is passed through the desiccant bed at a
relatively low velocity. The desiccant will adsorb the vapour
to the design requirements, say a dew point of minus 5 degC
at pressure, which means that no water can condense until
the compressed air has dropped below this temperature. Dryers
can be provided for any normal European winter conditions
After a set time of drying, the vessels automatically change
over by a system of air operated valves controlled from a
PLC. First, the regenerated vessel is slowly pressurised,
then the changeover takes place directing the wet air inlet
into the dry desiccant vessel which is exhausted to atmosphere.
Next the fan starts and allows the heater to switch on passing
hot air through the wet bed and out to atmosphere. When a
pre-determined temperature is reached the thermostat cuts
out the heater and subsequently the fan after a short cooling
period. Thereafter natural cooling takes place until the next
changeover.
click
here for schematic diagram |
- Simple To Operate
- Reliable
- Low Maintenance Costs
- No air loss / closed loop system
- Fully Automatic Operation with PLC control
- Electric or Steam Regeneration
- For Use with Compressed Air, Nitrogen, Carbon Dioxide
and Argon.
The unit is supplied with inlet and outlet filters,
separate fan and heater batteries as well as thermostatic
temperature control and safety overheat cutouts as standard
to ensure minimum heater on time.
For gases other than compressed air please
phone us and talk to our technical design team
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