What is the difference between Roots fans and centrifugal fans?

Roots fans and centrifugal fans are two different types of fans, and according to their different working principles, the following comparisons can be made:

1. How it works

Roots fan is the principle of producing air flow through the rotation of two interlocking impellers to achieve gas compression and transportation.

The centrifugal fan pushes the gas around the casing through the role of centrifugal force and flows to the outlet to achieve gas compression and transportation.

2. Compression efficiency

The compression of Roots fan is relatively low, which is suitable for small and medium flow and medium pressure gas transmission and compression.

Centrifugal fan compression is relatively high, suitable for large flow and high pressure gas transmission and compression.

3. Noise

The Roots fan is relatively quiet.

The centrifugal fan is noisy.

4. Energy Consumption

The energy consumption of Roots fan is relatively high.

Centrifugal fan energy consumption is low.

5. Use occasion

Roots fan is suitable for sewage treatment, sludge concentration and other fields.

Centrifugal fans are suitable for industrial fields, such as gas turbine acceleration, drying, refrigeration and other fields.

In summary, it can be seen that Roots fans and centrifugal fans have great differences in working principle, compression efficiency, noise, energy consumption and use occasions, and choose according to specific use needs and occasions.