Internally Heat Reactivated Type Air Dryers are used to meet dew point requirement from (-¬) 40°C to (-¬) 80°C. In this design, the desiccant is regenerated at higher temperature, along with small quantity of Dry air purge. Due to purging with Dry air and thermal regeneration, residual moisture loading on desiccant becomes low and this gives very low Dew point. It is twin tower system, filled with Activated Alumina or Molecular sieves desiccant, depending upon dew point requirement as per application. One tower remains in drying cycle for 6 hours, while other tower is simultaneously regenerated at atmospheric pressure. Purge flow of 3 to 7.5% is used for regeneration depending on dew point requirements.
Technical Specification
Capacity | 5 - 3000 NM³/Hr |
Dew Point ( ADP ) | (-) 40°C to (-) 80°C |
Operating Pressure | 2.0 Barg or more |
Standard Cycle Time | 6 + 6 Hours |
Purge Loss | 3 to 7.5% |
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