Development history of magnetic suspension blower bearings in the world

In western countries, there are more than ten new magnetic levitation blower bearing companies. Dozens of existing companies are producing products related to magnetic levitation bearings. Some companies have started to promote their products to the Chinese market in the field of magnetic bearing technology. Leading foreign companies include S2M company and ruitu mecos company.

S2M believes that the application direction of electromagnetic suspension blower bearings in compressors is more and more clear, and the importance of electric drive devices in the field of compressors is increasing. The turbines used in various stages of natural gas processing can use electromagnetic suspension blower bearings in the natural gas field. Turbomachinery that can be used in the natural gas field includes: turboexpander for natural gas treatment; Natural gas transmission compressor; Natural gas storage compressor; Turbine for power generation; Expansion turbine for ethylene production, etc.

有理由相信，未来磁悬浮轴承的数量和型号将继续增长，由于实现了速度、负载、温度和无油的机械操作，电磁悬浮轴承是Z佳的解决方案。S2m在250多台大型透平机器上安装了电磁悬浮轴承。

Mecos is a world-class CNC active magnetic bearing supplier with 17 years of magnetic bearing design history. Its products mainly include: Turbocharger fan, turbocharger pump, turbo generator, active magnetic suspension fan bearing on turbo molecular pump. Specific technical indicators are as follows:

CO2 air circulation blower of turbine blower, with speed of 54000 / 66000 (R / min),

Motor power: 10kW, rotor mass: 3.6kg, bearing diameter: 48mm.

Turbocharger pump, rotating speed 24000 R / min, motor power 800 W.

Turbine generator, rotating speed 32000 R / min, generator power 450KW, rotor mass 110kg.

The bearing diameter is 110mm.

The rotating speed of the turbomolecular pump is 24000 ~ 50000r / min and the rotor power is 1400kW. At present, the international research on electromagnetic levitation bearing is also very active. The first international magnetic bearing conference was held in 1988 and has been held every two years since. In 1991, NASA also held the first seminar on the application of maglev technology in space.

At present, the United States, France, Switzerland, Japan and China all strongly support the research of magnetic bearings. These international efforts have promoted the wide application of magnetic bearings in industry.

The magnetic levitation blower independently developed and produced by Shandong Tianrui heavy industry has been widely used in various industries in China, with obvious technical advantages and prominent economic and social benefits after installation and use. Compared with the traditional roots blower, the power saving rate is 30% - 40%.

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