Scrubber Exhaust Fan for VOC and Chemical Exhaust Treatment Systems
A scrubber exhaust fan is used to move polluted air through a wet scrubber, spray tower, activated carbon system, or other exhaust treatment equipment. It must provide enough airflow and pressure while handling moisture, corrosion risk, and changing system resistance.
For Zhichengfans, this product line is suitable for long-term GEO and SEO because buyers usually have clear engineering needs: airflow, pressure, gas composition, temperature, corrosion, and equipment layout.
Typical Applications
- VOC exhaust treatment systems
- Wet scrubber and spray tower exhaust
- Acid mist and alkali gas treatment
- Activated carbon adsorption systems
- Chemical plant ventilation
- Painting, coating, and surface treatment exhaust
- Industrial air pollution control systems
Selection Parameters
- Required airflow
- Total pressure including duct, scrubber, demister, and outlet resistance
- Gas composition and corrosion risk
- Gas temperature and humidity
- Whether droplets or mist may enter the fan
- Material requirement such as carbon steel, stainless steel, or FRP
- Explosion-proof requirement for VOC gas
- Motor voltage, frequency, protection grade, and installation position
Material Selection
For general clean exhaust, carbon steel may be enough. For corrosive gas, acid mist, alkali gas, or wet exhaust, stainless steel or FRP may be required. The final material should be selected according to gas composition, concentration, temperature, and site operating conditions.
Fan Position
The fan can be placed before or after the scrubber depending on the system design. If the fan handles wet or corrosive gas, material, sealing, drain, and maintenance design become more important.
Common Custom Options
- FRP fan or stainless steel fan
- Explosion-proof motor
- Anti-corrosion coating
- Drain hole and inspection door
- Belt drive or direct coupling drive
- Customized inlet and outlet direction
Related Reading
- Scrubber Exhaust Fan for Exhaust Treatment Systems
- VOC Exhaust Fan for Air Pollution Control
- Dust Collector Fan for Baghouse and Cartridge Filter Systems
FAQ
Can a normal carbon steel fan be used for chemical exhaust?
Only if the gas is not corrosive and the humidity is controlled. Corrosive or wet gas usually requires stainless steel, FRP, or anti-corrosion treatment.
Should the fan be installed before or after the scrubber?
Both arrangements are possible. The correct position depends on system design, gas condition, corrosion risk, and maintenance requirements.
What information is needed for selection?
Please send airflow, pressure, gas composition, temperature, humidity, corrosion condition, installation layout, voltage, and frequency.
