Treatment and Storage
Compressed air treatment is essential to protect equipment and ensure final product quality.
Air Treatment
Dryers
Remove moisture from compressed air to prevent corrosion and contamination.
Types of dryers:
- Refrigerated dryers - Dew point of 3-10°C (37-50°F)
- Desiccant dryers - Dew point down to -70°C (-94°F)
- Membrane dryers - For point-of-use applications
Filters
Remove particles, oil, and contaminants from the air.
Filtration levels:
- Particulate filters (1-5 microns)
- Coalescing filters (0.01 microns)
- Activated carbon filters (oil vapors)
Condensate Separators
Separate water and oil from compressed air.
Storage
Receiver Tanks
Store compressed air to stabilize pressure and absorb demand peaks.
Main functions:
- Pressure stabilization
- Energy storage
- Additional air cooling
- Condensate separation
Sizing
Tank size depends on:
- Compressor capacity
- Demand variability
- Control strategy
Distribution System
Piping
Proper piping design minimizes pressure drops and leaks.
Considerations:
- Material (aluminum, steel, plastic)
- Adequate diameter
- Ring vs. branched design
- Drainage points