Double Inlet Centrifugal Exhaust Fan Blower 220V 380V Stainless Steel Centrifugal Blower

Double inlet fan centrifugal exhaust fan blower backward centrifugal fan centrifugal air blower centrifugal air blower

Double inlet fan due to the thickness of the central disk is larger, the exit has a vortex area, namely trail phenomenon, loss, but after the serrated trough of vortex area than slotted vortex area will not expand, because from the point of view of bionics, such as the wings of birds, tail feather shape, the zigzag is a muted eddy current, large eddy current for small vortex, and reduce the loss of function, tell from the aerodynamic principles, Impeller with good aerodynamic performance, the vortex must be small, the vortex is small, the loss is small, the vibration is small, and the noise will be reduced, so its benefits are obvious. The work of the fan on the gas mainly depends on the blade of the impeller, rather than the wheel. After the groove of the middle disc, it not only increases the area and output of the blade, but also has the function of advance pressure expansion of the flow channel, so it is beneficial to the aerodynamic performance of the impeller and also has a certain improvement in the efficiency of the fan.

General double suction fan for the installation of impeller shaft to the deviation from the central disk port airflow uneven, on both sides of the impeller are prone to axial thrust, makes the rotor vibration is larger, and the vibration of the long-term slants big, easy to burn bearing, and serrated trough for airflow by axial impeller into radial flow in advance, after the larger extent reduced the axial thrust, Therefore, the sensitivity to bias current is relatively low.

The safety of the serrated groove in the impeller has always been concerned and skeptical, but after the stress distribution research on the rotating equal thickness wheel shows that the radial stress Rr and tangential stress RH on the wheel are determined by the centrifugal force of the impeller itself and the force conditions on the inner and outer diameters, in short: The distribution law of stress on the middle disc from inner diameter to outer diameter is that Rr is very small near the inner diameter, gradually increases with the increase of radius, and is maximum in the middle, and then decreases with the increase of radius, and is small near the outer diameter. RH is the minimum at the outer diameter, gradually increases with the decrease of radius, and reaches the maximum when it reaches the inner diameter

 

 
 
 

 


 
Key Features 

• Impeller diameter: 90~3500 mm 
• Speed of mainshaft: 560~3200 rpm
• Pressure range: 3000~25425 Pa
• Flow range: 1297~98305 m3/h
• Air Temperature: 20~1000 Celsius degree

• Material: Cast Iron, Carbon Steel, Stainless Steel.

• Efficiency: 80%-90%