The centrifugal fan was invented in 1832 by the military engineer Lieutenant General Alexander Sablukov of the Imperial Russian Army of the Russian Empire. Centrifugal Fans, often called blowers, are very different from axial fans. The pressure of the incoming air stream is increased by a fan wheel, which is a series of blades mounted on a circular hub. Centrifugal fans move air radially than normal fans. The direction of the outgoing air generally changes 90 ° from the direction of the incoming air. The airflow generated by centrifugal fans passes through a system of ducts or pipes. This will help create a higher pressure airflow from the axial fans. Radial fans produce a smoother airflow than axial fans despite their low flow speed. Centrifugal fans also require higher energy consumption.
Types of centrifugal fan blades:
The Manufacturer Of Centrifugal Fans has designed these fans in four basic types, each with its purpose:
- Radial: Centrifugal fans of high pressure and medium flow. Centrifugal fans are best suited for dusty industrial applications or gaseous or humid environments.
- Forward Curve: For clean air, ventilation, and air intake applications, forward curved medium and high-pressure air fans can be used.
- Backward Curve: They provide High-pressure, high-flow, high-efficiency reversible fan options. Performance decreases as flow increases in the most efficient area of the system.
- Airfoil: This type of fan has an Aerodynamic surface hence they are the most efficient fans for clean air applications.
Common Applications Of Centrifugal Fans
Centrifugal fans are ideal for high-pressure applications like drying and air conditioning systems due to their high pressure. They are ideal for use in air pollution and filtration systems because all moving parts are enclosed and have particle reduction properties. Centrifugal Fans also offer clear benefits:
- First-class energy efficiency: Thanks to the constant airflow, centrifugal fans can generate electricity with a static efficiency of up to 84%. These higher efficiencies are ideal for servicing larger air systems.
- Improved durability: These fans are durable enough to function properly in the most corrosive and corrosive environments.
- Ability to limit overload: Some centrifugal fans are equipped with no-overload performance curves to ensure that the motor is not overloaded when its capacity is exceeded.
- Easy maintenance: Fans made of lighter material can be easily cleaned as needed. Some fans also have self-cleaning features that make daily maintenance much easier.
- Great versatility: Centrifugal fans are suitable for multiple airflow/pressure combinations and can handle a variety of airflow conditions, including clean, dry, and humid air.
- Multiple sizes: These fans are available in different sizes to suit different applications, for example in narrow or hard to reach areas.
Mounting options For Ventech System Centrifugal Fans!
As mentioned above, the forward-leaning engine propeller of Centrifugal Fans creates high-speed air at the wingtips. It must be deflected and lowered to convert dynamic pressure to static pressure. The Ventech System move around the propeller to facilitate their fan with the highest efficiency. The number is due to the ratio of distances from the center of the impeller to the fan outlet. As with the back curved fan, a small overlap between the inlet ring and the impeller opening is also recommended.