The process
A paint shop is an air system: conditioned supply through AHUs to the booths, exhaust with overspray through water wash or dry filters, solvent abatement by adsorption or oxidation, and ovens with recirculation fans. Spark resistant construction on the exhaust side.
The gas
Booth exhaust carries paint overspray that cures on anything it lands on, with solvent vapour. Spark resistant, a blade form that is easy to clean, and the fan after the booth filters or scrubber.
Fans in this process
| Duty | What it does here | Type usually selected |
|---|---|---|
| AHU | A packaged unit with fan, filters, cooling or heating coil and mixing box that conditions and delivers supply air. | Backward curved and forward curved |
| HVAC | Supply, return and exhaust fans for heating, ventilation and air conditioning of plant and office space. | Axial, backward inclined and forward curved |
| Fume Exhaust System | Hoods, ducting and an exhaust fan that capture fume at source and deliver it to a scrubber, bag filter or stack. | Backward inclined and radial tipped |
| Hot Air Fan | Circulates or supplies air at elevated temperature to a dryer, oven or kiln. | Backward curved and backward inclined |
| Plug Fan | A centrifugal impeller without a scroll, plugged through the wall of an oven, dryer or air handling unit so it recirculates the air inside the chamber. | Backward curved |
| Ventilation Fan | Moves air through a plant or building for fresh air supply, heat removal and fume dilution where the system is ducted. | Backward inclined and forward curved |
Air pollution control
Industries
Related processes
Heat Treatment FurnacesForge ShopsIron and Non-ferrous FoundriesHot Dip Galvanising LinesSolvent Recovery PlantsPowder Coating LinesPickling and Acid Treatment LinesWelding and Fabrication ShopsBlasting and Painting HallsCar Parks and TunnelsFactory Shed VentilationCold Rolling MillsRubber and Plastics CompoundingFoundry Sand Reclamation