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https://www.bernyeangroup.com/products/magnetic-levitation-blower.html          
 
Magnetic Levitation Blower
The magnetic levitation centrifugal blower                technology integrates magnetic levitation bearings and high-power high-speed permanent magnet motor technology into a high-speed motor, coupled with a dedicated high-speed permanent magnet motor frequency converter to form a high-speed driver     
 
Description
1. The magnetic levitation centrifugal blower technology integrates magnetic levitation bearings and high-power high-speed permanent magnet motor technology into a high-speed motor, coupled with a dedicated high-speed permanent magnet motor frequency converter to form a high-speed driver, driving the high-speed centrifugal impeller to work in the most energy-efficient working area, and developing an efficient magnetic levitation centrifugal blower.     
 
2. Working principle: Magnetic levitation centrifugal blower is a new type of blower that integrates magnetic levitation bearing technology and high-speed motor technology into traditional fans, resulting in high efficiency, environmental protection, and energy conservation. Control the magnetic bearing through internal magnetic levitation bearings, generate a magnetic field through current, and generate suction force through the magnetic field, thereby achieving the suspension of the shaft. A high-speed motor generates a frequency controllable alternating current through a variable frequency power supply, which is input into the stator of the motor to generate an alternating magnetic field, driving the shaft to rotate at high speed. This is known as a synchronous permanent magnet motor. The blower impeller, which rotates at high speed along with the shaft, drives air to enter from the inlet of the vortex shell. Under the guidance and pressurization of the vortex shell, the air becomes a gas with a certain flow rate and pressure, and finally bulges out from the outlet of the vortex shell.     
 
3. The performance characteristics are energy-saving and efficient. The magnetic levitation centrifugal blower adopts magnetic levitation bearings, which have no mechanical or contact losses and meet the requirements of high speed infinite variable speed regulation. High cooling efficiency, the cooling system uses a combination of water and air cooling, which can effectively protect the motor and meet the requirement of the fan to start and stop at any time., Convenient installation, due to the use of an integral box structure, the fan noise is less than 80 decibels, the range of body vibration is extremely small, and the installation foundation requirements are low. Currently, the maximum speed of the magnetic levitation centrifugal blower can reach 40000 r/min, and it can operate stably and reliably within the working range. Its vibration and noise levels are lower than other models of centrifugal blowers that use mechanical bearings.     
 
4.      Advantages and disadvantages analysis: The magnetic levitation blower adopts non-contact and non mechanical friction magnetic levitation bearings and a high-speed high-power permanent magnet synchronous motor, which directly drives the high-efficiency fluid impeller, overcoming the shortcomings of traditional blowers and air levitation blowers. It has the advantages of high efficiency, low noise, few faults, and no need for lubrication system. Even if the magnetic levitation bearing fails, it relies on the protective bearings in the system, The high-speed rotating rotor can still be safely shut down without causing serious damage to the equipment.     

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