The wet Air / Gas  stream is split at the air dryer inlet through a differential distributor valve. Part of this air / gas stream is passed through an external heater and heated to a regeneration temperature of 160-180°C, then it is fed to the Adsorber desiccant tower A containing Silica gel or activated Alumina / Molecular Sieves under regeneration thus removing out the moisture from the desiccant bed. A water cooled / air cooled aftercooler  condenses the desorbed moisture which is discharged regularly through the automatic drain trap  . after condensation This Air/ Gas stream joins the main incoming air stream and goes for drying to the  other tower B under drying. Normally a Cycle time of  8+8  hrs is utilized to complete one cycle of operation. After each operation the changeover is effected automatically.

 

This type of dryer provides an outlet Dew Point of  -40 deg C. The Air  dryer can be supplied with standard accessarie like  simplex / duplex Prefilters / Afterfilters, Flowmeters, dew point meters etc. The system is fully automatic / semi automatic , with Timer / PLC controls with feedbeck to/ from main DCS.



APPLICATIONS  --

- Instrument air dryers for power plants Refineries & Petrochemicals  , chemical  & fertilizer plants   etc.

- CNG Compressed Natural Gas Drying  & conditioning plants , Gas Drayers.
-  Hydrogen Gas Drier for generator Cooling Application.

The above air dryer capacities are rated at an inlet temp. of 40°C., 7kg/ Cm²g Pr. ( 0.7 Mpa ) and at an outlet dew point of (-) 40°C. at Atm. Pressure, Supply Voltage of 415 V-3 PH- 50 HZ or 220V-1PH-50 Hz.

Above data is only for estimation and can be changed without notice. For special systems and higher capacities please contact us.

For cost comparison of operating of a Heat of Compression Type Air Dryers Vs. Heated Type/Heatless/Refrigerated Type Air Dryers please clickhere.

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