Magnetic salt bearing status of magnetic levitation bearing depend on magnetic force to set the position of the rotor suspended in, with no mechanical contact, no friction, no, long life, no lubrication, the advantages of high efficiency, low noise, is a typical high technology products, more than 40 years, there have been many foreign equipment adopted since the high end of magnetic suspension bearing, widely used in energy, fluid machinery, military equipment and other fields, and even become extreme environment preferred magnetic suspension bearing bearing technology can solve the problem of conventional mechanical bearing cannot be solved, in many key areas and emerging strategic industry in China has great demand, these areas and industry mainly includes the gas pipeline compressor, low temperature heat source power, weapons and equipment, etc, to increase the use of natural gas in China is to improve the energy structure, the key to control air pollution in the wrong one.
A few days ago, I countries accounted for 5% of the proportion of primary energy, natural gas can reach 10% in 2020 (
400 billion m2)
But, much less than 24% of the developed countries.
Rely on about 75% of the natural gas pipeline in the world, general conveying distance is 10004000 km, along the way to the construction of a gas pressure station, many of its key equipment is a centrifugal compressor.
Due to more conventional mechanical bearing failure, long life, life is short, the high cost of maintenance, in recent years gradually used magnetic suspension bearing, can significantly improve the performance of the centrifugal compressor.
Today to check, Russia has built about 200000 km of gas pipelines, USES about 6000 units for gas transport and storage of centrifugal compressor.
In 2020, in China, the need to build more than 10 km of the natural gas pipeline, is expected to take thousands of all kinds of maglev centrifugal compressor turbine machinery such as energy efficiency has always been a key problem to be solved.
Consume about 35% of the industry in China is transformed into low temperature waste heat, due to lack of effective technology at present, these precious underused low-temperature heat source surface is directly discharged into the atmosphere, is a waste of energy and environmental pollution, in addition, solar, geothermal, ocean temperature difference can and nature reserves, such as low temperature source.
Low-temperature heat power generation system using magnetic levitation bearing technology, can improve the speed and efficiency, guarantee the stability of power generation equipment running more than 20 years, can significantly reduce the cost of power generation.
In 2011 the United States pioneered by adopting low temperature heat source of magnetic suspension bearing power generation equipment, our country need develop the new energy, improve the energy structure of our country abroad have the magnetic suspension bearing is applied to all kinds of advanced weapons and equipment.
To achieve quiet coupled, hai in the United States and Russia and Virginia class submarines are hundreds of magnetic suspension bearing is adopted, which USES the magnetic suspension bearing refrigeration system noise was reduced after 5 ~ 10 db.
More electric motor is one of the aeroengine development direction of the 21st century, high temperature magnetic suspension bearing is core and key technologies, and sages in than for 15 ~ 20 large fan motor and has great application prospect in intelligent engine aircraft ejection, electromagnetic gun, laser weapons, such as electrical tanks began to explore the use of flywheel battery, based on magnetic levitation bearing compared with the traditional battery, its more than 5 ~ 10 times the energy, 3 orders of magnitude larger than the power, after 40 years of development, up to 20 years of life abroad not only does systemic research on the technology of magnetic suspension bearing, and established the system of magnetic suspension bearing industrial system.
The professional development of magnetic suspension bearing company, there are mainly two modes, one is 'matching' mode, such as Mecos S2M, France, Switzerland, the United States of Waukesha, Canadian companies such as Revolve, form a complete set for all kinds of high-end rotating machinery in the world of the magnetic suspension bearing system;
Another is 'the host' mode, magnetic suspension bearing developed primarily for the company to develop one or more maglev host products, such as the United States of Danfoss Turbocor company, the company developed
