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Centrifugal Fan Characteristics And Differences

Jul 11, 2017

There are many types of fans, centrifugal fans and axial fans are often compared, Centrifugal Fan the two are relatively similar but have their own characteristics and differences, Centrifugal Fan this paper is about the centrifugal fan and axial fan of the difference.

Centrifugal fan is the use of kinetic energy into the principle of potential energy, the operation of the axial fan is the wind energy into heat and then heat and gas kinetic energy into pressure, Centrifugal Fan to work. Generally, whether it is centrifugal fan or axial fan, Centrifugal Fan the more advanced the fan will be more intelligent, Centrifugal Fan can change the pitch of the leaves to change the flow of the wind.

Centrifugal fan and axial fan difference is:

1, centrifugal fan to change the flow of media within the duct, Centrifugal Fan and axial fan does not change the flow of media within the duct;

2, the former air volume and wind pressure are large, the latter air volume and wind pressure are very low;

3, the former installation is more complex, Centrifugal Fan the latter is relatively simple to install;

4, the former motor and fan is generally connected through the shaft, the latter motor is generally in the fan;

5, the former often installed in the air conditioning unit into, exit, Centrifugal Fan boiler drum, induced draft fan, etc., which often installed in the duct which, or duct outlet front.

In the mechanical structure of the fan:

The diameter of the fan of the axial fan is limited to the diameter of the shell, and the centrifugal fan does not have the limitation of this aspect. It can adopt the blade forward or backward blade, Centrifugal Fan and the wind pressure requirement is wider. And the cabinet can do silencer processing, Centrifugal Fan noise indicators have a clear advantage.

As the general use of the motor speed is low, the motor power, Centrifugal Fan power consumption phase more. If you usually use the ventilation system, Centrifugal Fan try to use cabinet centrifugal fan, Centrifugal Fan fire smoke is not commonly used in the system, the use of high-temperature axial fan more economical and reasonable!

Centrifugal fan than the axial fan in the combination of large air volume and wind pressure on the more advantages (mainly refers to the fan efficiency and noise indicators)!

Control the air volume of the fan not only allows the best effect of the centrifugal fan, but also help users to reduce energy consumption, Centrifugal Fan so the use of fans, Centrifugal Fan we should pay attention to the control of air volume, so as to achieve the true value of the fan, Ventilation ventilation is the best embodiment of the air volume in the control before we need to know some of the principles of centrifugal fan, so as to help users better control air volume.

   Centrifugal fan is based on the principle of kinetic energy conversion to potential energy, the use of high-speed rotation of the impeller to accelerate the gas, Centrifugal Fan and then slow down, change the flow, the kinetic energy into potential energy (pressure). Centrifugal Fan In a single-stage centrifugal fan, the gas enters the impeller from the axial direction, and the gas flows into the radial direction through the impeller and then enters the diffuser. In the diffuser, the gas changes the flow direction to cause deceleration, Centrifugal Fan which slows the kinetic energy into pressure energy. The increase in pressure mainly occurs in the impeller, followed by the expansion process.Centrifugal Fan In a multistage centrifugal fan, Centrifugal Fan use a refluxor to allow the airflow to enter the next impeller, creating a higher pressure.