Large Building Centrifugal Ventilation Fans Civilian Low Noise Belt Drive 11kw

Large Building General Ventilation Fan Civilian Low Noise Belt Drive 11kw

This series of centrifugal fans has high efficiency, low noise and stable performance curve. Mainly used for indoor ventilation, dehumidification and dust removal, etc. in factories and mines, stadiums, opera houses, basements, large and small hotels, restaurants, shopping malls and large buildings. It can also be used as a gas recycler with other types of machinery.

It is used for indoor air change in factory and large building ,both for input and export air.
It is used for indoor air change in factory and large building ,also could match with air cleaning facility, both for input and export air.
It is used for indoor air change in factory and large building, also could be used for smoke prevention and dust control .
It is belongs to medium pressure, big flow centrifugal fan. It’s impeller is made of retroverted wing shape vane, cone arc front disc and plate back disc. The kind of fan has high efficiency ,low noise .It is sturdy and durable .
It is used in thermal power plant ,and also could used for air change in mine.

Wheel
The wheel shall be of the backward curved centrifugal steel type and all welded. The wheel shall be statically and dynamically balanced up to ISO 1940-G4.0 standard. Stable airflow and low sound should be ensured as the wheel is operating at the maximum allowable speed. Drop in performance shall be avoided as the operating point moves up or down. The wheel shall be readily removable for cleaning or maintenance.
Fan Housing
The fan housing shall be constructed of steel and it shall be thick and strong enough to withstand the maximum operating weight of the fan. The housing shall be continuously welded and have an access door for removing possible foreign bodies.
Inlet
The inlet shall be designed in line with aerodynamics. It shall be streamlined for better airflow movement and efficiency, reducing turbulence and sound.
Belt Drive and Coupling Drive
The fan shaft shall be treated through hardening and tempering and finish turning processes up to the hardness level of HB250-280. Its maximum load shall be 35% more than the highest fan speed. The shaft shall be supported by two bearings with L10 rating service life of over 80000 hours. It shall be sealed and can be lubricated under normal operating temperatures. The pulley shall be of cast iron type and shall be sized for a minimum of 150% of the driving power. There shall be pulley and belt guard. Flexible coupling equipped with a guard shall be used. The factor of safety of power transmission and torsion shall meet the design requirements.

Centrifugal fan production process:

Case Show: