Centrifugal fan

Centrifugal fan

Product Information

  • Name : Centrifugal fan
  • SKU : BLT-84
  • Category : centrifugal-fans

Centrifugal fans are impeller-type fluid ventilation and exhaust equipment, composed of an air inlet, volute casing, impeller, main shaft transmission assembly, drive motor, and base support frame. They rely on the high-speed rotation of the impeller to generate centrifugal force, pressurizing and conveying gas. Capable of handling normal-temperature air, high-temperature flue gas, dust-laden exhaust gas, and corrosive gases, they feature a robust structure with adjustable airflow and air pressure. Suitable for various working conditions such as ventilation and exhaust, dust removal and smoke extraction, material conveying, and boiler air supply, they are the most commonly used ventilation power equipment in factory ventilation, environmental dust removal, and industrial smoke exhaust systems.

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Centrifugal fan

Working Principle The motor drives the spindle and impeller to rotate at high speed inside the volute casing. Air is drawn into the center of the impeller from the axial air inlet. The blades drive the airflow in a circular motion, and under centrifugal force, the air is rapidly thrown toward the outer edge of the impeller. The airflow gathers within the volute-shaped casing, converting kinetic energy into pressure energy, and is finally discharged directionally from the fan outlet along the tangential direction. A continuous negative pressure is maintained at the center of the impeller, causing external air to be constantly drawn into the air inlet, thus achieving continuous and stable air extraction, supply, and exhaust operations through this cycle. Application Fields 1. Ventilation and air exchange in factory workshops: Supply air and exchange air in factory workshops, improve air circulation in enclosed spaces, and provide localized exhaust at workstations to enhance indoor air quality. 2. Environmental protection, dust removal, and purification: Used in conjunction with dust collection bags and waste gas treatment equipment to extract workshop dust, welding fumes, and production exhaust, sending them to purification devices. 3. Boilers and thermal equipment: Induced draft and forced air supply for boilers, extracting combustion flue gas from the furnace for discharge, and assisting in the full combustion of fuel. 4. Pneumatic material conveying: High-pressure fans are used to transport grain particles, plastic pellets, and sawdust powder, enabling negative-pressure pipeline feeding and conveying.