Aerotech Fans
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Engineered specifically for the absorption of highly toxic, corrosive, or odorous gases (like SO2, HCl, NH3, and H2S). Utilizes structured or random packing media (Pall rings, Intalox saddles) to maximize the gas-to-liquid contact surface area for optimal mass transfer and chemical neutralization.
Max Airflow
Up to 85,000 CMH
Max Pressure
Up to 800 mm w.g.
Material
FRP / Polypropylene (PP) / SS
Installation
Vertical tower installation
| Model | Air Volume (CFM) | Static Pressure (in.wg) | RPM (Max) | Motor (HP) |
|---|---|---|---|---|
| PBWS-20 | 11,700 | 350 | 1,450 | 10 |
| PBWS-40 | 23,500 | 500 | 1,450 | 25 |
| PBWS-80 | 47,000 | 800 | 1,200 | 60 |
Calcium scaling on the packing media occurs when using hard makeup water. It is prevented by strictly managing the blowdown rate to control dissolved solids, and by dosing the recirculating scrubber liquid with antiscalant polymers to keep the calcium suspended in solution.
Chemical packed bed scrubbers utilize random packing media, most commonly Pall rings, Raschig rings, or Intalox saddles. Fabricated from Polypropylene (PP) or PVDF, these shapes maximize the wetted surface area for gas absorption while minimizing aerodynamic pressure drop.
A wet scrubber's recirculation pump must be electrically interlocked with the main exhaust blower via the PLC. If the pump fails and the blower continues to push hot, corrosive gas into a dry scrubber column, the internal plastic packing media will instantly melt or catch fire.
The Liquid-to-Gas (L/G) ratio is a critical mass-transfer metric that defines the volume of scrubbing liquid injected per unit volume of exhaust gas (usually expressed in GPM per 1,000 CFM). If the L/G ratio is too low, the packing media develops dry spots, causing a catastrophic drop in chemical neutralization efficiency.
Destruction and Removal Efficiency (DRE) is the mathematical percentage of a specific pollutant that is successfully captured or neutralized by the scrubber system. It is calculated during EPA stack testing by comparing the exact mass flow rate of the pollutant at the inlet versus the outlet.
