Beko GmbH

 Drypoint AC(10~112 m³/hr) Drypoint AC(135~1,550 m³/hr)

Beko Absorption dryer - Unsurpassed reliability and performance in its class

Conventional absorption dryers suffers from pressure drop which is common in their dryer's piping layout, vessel volume and so on.  The pressure drop will be compensated via an increased of compressor output, this translate into higher compressor energy consumption. 

For every 1 bar pressure drop, an increase of about 10% compressor output is required.

DRYPOINT AC heatless absorption dryers offer a convincing solution to the problem.

BEKO have developed absorption dryer with pressure drop to an average of only 0.25 bar, including the pre- and after filters. Compared with conventional constructions, this represents an improvement of over 50%.

Thus, acquisition costs will be repaid through energy savings costs after an average of only three years.

DRYPOINT AC absorption dryers are available in two series:

• performance range 10 - 112 m³/hr  Compact Heatless Dryer Technical data

• performance range 135 - 1,550 m³/hr            Heatless Dryer Technical data

DRYPOINT AC Compact 10 - 112 m³/hr

Basics of Heatless absorption dryer

Also known as Pressure swing absorption(PSA) desiccant dryers, it literally means the dryer operates without using heater power and uses pressure swing method to regenerate. 

Heatless dryer consists of two vessels which hold desiccants or drying agents.  As moistures pass through the desiccants, moisture molecules are being absorbed.  The end result is dry compressed air of -20°C to -70°C pressure dew point, as compared to a refrigerant dryer of +3°C.

PSA dryer runs in stages: Absorption, regeneration, and standby.  A complete cycle can last from 5 minutes to 15 minutes depend on settings.

PSA Heatless dryer is controlled by a timer or a dew point controller.  As the absorption stage ends, the absorbing vessel will release its pressure to ambient; the force of this pressure swing can remove large volume of moisture trapped on the desiccants.  However, the PSA dryer still needs dry compressed air to regenerate and remove the remaining moisture. This is to ensure constant dew point later on.  After the regeneration stage completes, the vessel will switch to standby awaits for the next absorption.