Magnetic levitation blower structure

The main components include high-efficiency centrifugal impeller, magnetic bearing, permanent magnet synchronous motor and special inverter. This type of fan adopts an integrated design, and its high-speed motor, inverter, magnetic bearing and microprocessing control panel are all integrated and integrated, and its core is magnetic bearing and permanent magnet motor technology.

(1) High-speed centrifugal impeller. The impeller adopts the ternary flow theory design and parameter optimization to maximize the efficiency of the impeller and the working area is wide. Its material is made of high-strength forged aluminum or titanium alloy, with strong deformation resistance; It is made of precision machining by CNC machining center, and has better anti-corrosion performance. According to the experts of the National Fluid Laboratory, the maximum efficiency of the impeller working point can reach 85%.

(2) High-speed permanent magnet synchronous motor. A permanent magnet is installed on the spindle of the motor to ensure the magnetism of the spindle. The coil wound by the stator silicon steel sheet of the motor generates a vibrating magnetic force, and the speed and the oscillating magnetic field are consistent during operation to achieve synchronization. The permanent magnet motor adopts magnetic bearing bearing, which has the characteristics of no mechanical friction, low noise, low vibration and long life, and the maximum speed can reach 50000r/min.

(3) Magnetic bearing. The shaft is stably suspended by controllable electromagnetic suction, and the shaft is not subject to any mechanical resistance during rotation, so it is highly efficient, wear-free, maintenance-free, lubricating and the air sold is absolutely oil-free.

(4) Motor intelligent control system. The magnetic levitation blower generally adopts vectorless frequency conversion control, and the rotation of the permanent magnet motor is controlled by adjusting the frequency, and then the flow rate of the blower is controlled to meet the use of various working conditions. The intelligent control system can predict surge and realize local control, and the equipment is equipped with a GPRS system to realize remote monitoring and data transmission.