The drying of compressed air is carried out with different procedures. For example, there are those that work with the principle of condensation, e.g. refrigeration dryers, and those that work with the principle of sorption, essentially adsorption dryers.
With refrigerant dryers, pressure dew points in the range of +3... are achieved. 10°C, with adsorption dryers up to -110°C.
Adsorption dryers are further subdivided into those with cold and warm regeneration according to the type of regeneration of the desiccant. Cold regeneration takes place with a partial stream of dry compressed air. Warm regeneration is achieved via an internal or external electrical heater. It can also be converted by compressor heat.
Compressed air dryers are an important component of a compressed air system. Their use must also be planned with a view to saving energy. If the pressure dew point may be above 0°C, the use of the more energy-efficient refrigerant dryer is recommended in contrast to the adsorption dryer.
Scope of supply:
| refrigerant dryers | ||
|---|---|---|
| pressure dew point | [°C] | 3 |
| Volume flow max. | [m3/min] | 200 |
| Operating pressure max. | [bar ü] | 16 |
| Inlet temperature max. compressed air | [°C] | 50 |
| refrigerants | R 134 a |
| Adsorption dryer cold regenerating | Adsorption dryer heat regenerating | refrigerant dryers | |
|---|---|---|---|
| pressure dew point | [°C] | -40 (optional -70) | -40 (optional -70) |
| volume flow | [m3/min] | 102 | 104 |
| Operating pressure max. | [bar ü] | 16 | 10 |
| Inlet temperature max. compressed air | [°C] | 50 | 50 |
