Compression type Air Dryers
from Air compressor the Compressed air, is taken to Air dryer
inlet through insulated pipelines, at 120oC(minimum)
temperature. This hot air is passed through one drying vessel
where saturated desiccant is regenerated by this hot air.
After picking up moisture from desiccant bed, the air is
cooled in an intermediate cooler. Here moisture is condensed
and removed by auto drain valve. Cooled to 40oC, this air
passes through the second drying vessel where balance moisture
gets adsorbed and Dry air comes out. Cycle time is of 4 hours
regeneration & 4 hours drying. After 4 hours the changeover of
vessels takes place automatically. In regeneration cycle
heating of the bed is only for 2 hours and thereafter the bed
is cooled by Dry air. After bed cooling, Dry air is again
cooled to 40oC in another cooler, and delivered out of unit as
Dry air at 40oC temp.
||50CFM to 3000CFM
Minus (-)40 Deg. C Normal
||Offer as per customers
||Tailor made designs as per
customer's layout requirement
The Dryer is fully automatic with pneumatically
actuated Ball/ plug valves. A sequence timer controls
operation of these valves. Desiccant used is Activated Alumina
and it dries the air up to (-)40oC Dew point.
There is considerable power saving in these type of Compressed
Air Dryers and the dew point is also better than the
Refrigerated type of Compressed Air Dryers.
Main Advantage of Heat of Compression Type Compressed air
dryer is the energy conservation and heat recovery achieved
which is being wasted in After cooler in the conventional air
dryer is now used to reactivate the desiccant.
- No power is required for regeneration.
- No loss of compressed air.
- Maintenance is easy as there are no blower, no heaters,
and no moving parts.
- Maintains desiccant adsorption capacity to give (-)400C
Dew point for almost 5 years.
- Low-pressure drop across the Dryer- less than 0.3kg/cm2.
- Skid mounted construction on channel base frame.
- Fully Automatic, continuous operation.
- Negligible operating cost. It neither requires Electric
power for regeneration, nor there is any loss of compressed
Note*:- Energy Saving Heat of Compression type air
dryer can be used only with oil free air compressors.