According to wind pressure
According to the pressure of the fan, the fan can be divided into a low pressure fan, a medium pressure fan and a high pressure fan.
The pressure range is as follows:
Low pressure: fan full pressure H ≤ 1000Pa
Medium pressure: 1000Pa < H ≤ 3000Pa
High pressure (centrifugal fan): 3000Pa < H ≤15000 Pa
Low-pressure and medium-low pressure fans are mostly used in ventilation engineering.
By purpose
Can be divided into general fans, dust exhaust fans, industrial ventilation ventilation fans, boiler induced draft fans, mining fans and so on.
Fans are widely used in ventilation, ventilation and high-temperature exhaust in tunnels, underground garages, high-end civil buildings, metallurgy, factories and mines. Depending on the application, the commonly used fans can be roughly classified into the following types:
(1) Centrifugal compressor (2) Power station fan
(3) General centrifugal fan
(4) General axial flow fan
(5) Gaorui blower
(6) sewage treatment fan
(7) High temperature fan
(8) Air conditioning fan
(9) Fire blower
(10) Mine fan
(11) Tobacco fan
(12) Grain fan
(13) Marine fan
(14) Dust blower
(15) Roof fan
(16) Boiler drum induced draft fan
Mine fans can be divided into main fans, auxiliary fans and local fans according to their uses. The main fan is used for ventilation in the whole mine, the auxiliary fan is used for air volume adjustment of a branch airway in the ventilation network, and the local fan is used for ventilation at a local location.
Sewage treatment fans can be divided into: centrifugal fan, high-definition fan, side-flow fan, water ring fan, etc.
By principle
Can be divided into centrifugal fan and axial flow fan water treatment blast aeration;
Stirring and aeration of sewage in hospitals and laboratories;
Vacuum feeding in the printing industry;
Stirring and aeration of electroplating tanks and industrial wastewater;
Supply of plastic welding and blowing air supply;
Burner spray, glass industry and others;
By technology
According to the bearing technology, it can be divided into general mechanical bearing type blower, shaft suspension bearing blower and air suspension bearing blower.
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