Maglev Blower
Integrated Design of Maglev Blower
The blower features the integrated design of"electricalmechanical and electronic".lt comprises the pneumaticunit of ternary fow impeller and volute shell, thehigh-speed freguency inverter and the maglev motordrive unit,and the centra contro unit for motor suspension and blower operation.
Magnetic levitation blower is an advanced gas conveying equipment that uses magnetic levitation bearings, high-speed permanent magnet synchronous motors, and intelligent control systems. It achieves non-contact suspension and high-speed rotation of the rotor through electromagnetic force (with a speed of tens of thousands of revolutions per minute), combined with efficient ternary flow impeller design, to achieve energy-saving operation without friction and lubrication. Its core advantages include: energy efficiency (saving 20% -40% compared to traditional blowers), low noise (usually<80dB), long lifespan (designed for over 15 years), and maintenance free (no lubrication system required). The typical air volume range is 10-200m ³/min, with pressure coverage ranging from tens to hundreds of kilopascals and power ranging from tens to hundreds of kilowatts. It is widely used in fields such as sewage treatment, chemical industry, electricity, and food processing, especially suitable for scenarios with strict requirements for cleanliness, noise, and energy consumption.
The core selling point of the magnetic levitation blower lies in its revolutionary magnetic levitation bearing technology, which achieves non-contact suspension and high-speed operation of the rotor through electromagnetic force (with a speed of up to 20000 to 50000 revolutions per minute). Combined with an efficient ternary flow impeller design, it significantly improves energy efficiency (saving 20% -40% energy compared to traditional blowers), and has advantages such as ultra-low noise (<80 decibels), lubrication free maintenance (no mechanical friction loss), and ultra long service life (design life of 15-20 years). It also supports intelligent regulation to adapt to different working conditions, especially suitable for industrial scenarios such as sewage treatment, chemical industry, food and medicine that require strict energy consumption, cleanliness, and noise control.
Magnetic levitation blower, with its frictionless, high-efficiency and energy-saving technical characteristics, is widely used in various fields such as sewage treatment (aeration process saves 40% energy and has no oil pollution), chemical industry (corrosive gas transportation and reactor gas supply), food and medicine (clean air supply and biological fermentation), electronic manufacturing (clean workshop airflow control), as well as flue gas treatment, aquaculture, etc. It is particularly suitable for industrial scenarios with strict requirements for energy consumption, noise and cleanliness. Its typical applications include energy-saving renovation of urban sewage treatment plants, oxygen supply for biological pharmaceutical fermentation, etc. It can significantly reduce operating costs (such as saving 350000 kWh annually in a certain case) and improve process stability.
Evaluates the vibration displacement, current, and voltage ofa roatg machine that is equipped with maglev bearing.
1、Coil Current Assessment
The maximum current waveform l(t)measured by the magnetic coil at rated operation should be less than the currentcapacity of power amplifiers, and each coil current should bechecked against this standard.
2、Amplifier Voltage Evaluation
High coil current indicates that the carrying capacity hasbeen reached, and it is necessary to ensure that the effect ofvoltage saturation is not significant. During normal opera-tions,the slope of reference current should be less than themaximum slope that the amplifier can produce.
3、Assessment of Vibration Displacement
Contact between rotating parts and stationary parts of themaglev motor must be avoid during motor's operation. For vibration displacement,the lSO standard has a clear recommendation that a qualified machine should have the testresult fall in either zone A or Zone B as defined below.
Zone A he vibration displacement of newly adjusted ma-chine usually falls in this zone.
Zone B:Machines with vibration displacements falling in thiszone are generally considered to be able to operate for longperiods of time without limitation.
Zone C:Machines with vibration displacement falling in this zone are generally not considered to meet the requirements of long-term continuous operation. Generally,in such cases,the machine can be operated for a limited time until appropriate remedies are available.
Zone D:Machines with vibration displacements falling in thiszone are generally considered severely damaged.
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