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COLD REGENERATED ADSORPTION TECHNOLOGY
 
This is the simplest type of Air Dryer with Activated Alumina / Molecular sieves Drying agent. Investment wise also this is the cheapest. This design is virtually maintenance free, fully automatic, and requires no attention for years. Cold regeneration type dryers do not require any heating for re-generation and therefore are very simple in design and smooth in operation.


In Cold regeneration Dryers, two vessels filled with desiccant are provided, which cycle automatically, producing Dry air continuously. In these units, wet air enters the bottom of one vessel and passes upwards through the desiccant bed where the moisture is adsorbed. The dry air comes out from the top. A small portion of Dry air is passed downward through the desiccant bed in the second vessel, which is under re-generation. Moisture laden purge air is then vented out to atmosphere. The purge loss is around 7.5% of the total air flow. At preset interval, the vessels changeover automatically, and Dry air is available continuously, without any surges, The purge air requirement is around 20% if  (-)800C dew point is needed.

Salient Features

Fully Automatic

Automatic re-pressurizing equalizes desiccant vessels pressure before changeover. So Desiccant movement is avoided
Eliminates need of costly heaters for regeneration, and also no cooling water requirement
5- years.
Low temperature operation reduces corrosion in towers and desiccant lasts longer
Power requirement is Single-Phase, 60 watts only.


Coldregenerated.pdf
 
 
 

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