Types Of Centrifugal Fans

Mixed flow fans.

Types of centrifugal fans.

Straight steel plate paddle wheel. A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Generally centrifugal fans have three types of blade. Our application engineers design all of the centrifugal fan and blower components to accommodate an application.

Some common design criteria are the size of the motor the shape of the fan blade the direction of rotation and the materials of construction. They are ideal for high pressure applications quite different from the other type of fans known as the axial fans. Forward curved fan also known as a squirrel cage fan due to the wheel type this fan s impeller is forward and somewhat small. Types of blades used in centrifugal fans are.

In addition the blades curve in the same direction as the rotation of the wheel. Pti a global leader in fan technology for more than 25 years manufactures both axial and centrifugal fans. There are two primary varieties of fan axial fans and centrifugal fans. Radial these are high pressure fans with medium airflow.

Centrifugal fans come in a variety of designs. Below are the six most common types of centrifugal fans each with a unique blade configuration. In a mixed flow fan the air flows in both axial and radial direction relative to the shaft. Backward curved blades are generally more efficient but forward curved blades are more self cleaning and should be used in applications with high dust concentrations.

Basic types of centrifugal fans. Centrifugal fan blade types. Radial bladed fans are best for industrial applications where there is dust or in environments where there is gas or moisture in the air. To help clear up that confusion here is a breakdown of the fan types their benefits and their uses.

Such a fan is also called a blower fan biscuit blower citation needed or squirrel cage fan because it looks like a hamster wheel. Centrifugal fans come in four basic fan types each with its own specific purpose. The characteristic curve of three kinds of centrifugal fan is shown in figure 2 15. Centrifugal fans are capable of generating relatively high pressures.

Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink. The centrifugal fans operates by throwing air away from the blade tips. Centrifugal fans often called as blowers are special type of industrial fans that are ideal for high pressure applications in several process industries and air pollution systems. Axial vs centrifugal fans.

Forward blade backward blade and radial blade. Centrifugal fans increase the pressure of an incoming airstream by impellers a series of blades mounted on a circular hub which in turn accelerates air radially. The blade wheel are mounted in housing and the blades can be forward curved straight or backward curved. The different blades can be characterized as shown in the capacity diagram below.