When using an air suspension blower, the wear of the film can shorten its service life. Therefore, it is advisable to minimize frequent start stop operations. This period of time is short, but there is still flat foil. During the starting and stopping stages of foil bearings, when the speed is below the critical speed, the dynamic pressure effect is insufficient to fix the rotor.
On the surface of the foil and rotor, the flat foil and corrugated foil undergo elastic deformation, pushing the flat foil apart, and then keeping the rotor in a suspended state. Or more simply put, during high-speed rotation of the rotor, a high-pressure gas film is formed between the rotor and the foil, thereby promoting the rotor. Although there is no friction between the impeller rotor and the air suspension blower after normal operation, it does not mean that the equipment is completely frictionless throughout the entire process. The motor spindle is coaxial with the fan impeller, and the high-speed rotor system is directly supported by air suspension bearings. At this point, there will still be contact friction between the inner surface of the bearing and the rotor. At the same time, in order to improve the service life of dynamic pressure bearings, high-quality lubricating coatings must also be applied to the bearing surface. Its main core technologies are air suspension bearing technology, high-speed permanent magnet synchronous motor and its control technology.
Air suspension bearings use air as the working medium, elastic flat foil as the support surface, and elastic wave foil as the support component. Uneven circumferential air pressure enables foil bearings to withstand loads. At the beginning, the impeller rotor comes into contact with the bearing, but when the rotor enters a high-speed rotation state, dynamic pressure effects will occur between the planes due to the viscosity of the air and the action of the wedge block.
The air suspension blower produced by Lianyungang Shengyuan Technology Co., Ltd. mainly includes impellers, air suspension bearings, frequency converters, high-speed permanent magnet motors, and their structural control systems. Welcome to call for consultation!
