Introduction to the Main Application Industries and Features of Air-Suspension Fans
Release date:
2022-03-08
The air-bearing fan features no gearbox, speed increaser, or coupling; it is directly driven by a high-speed motor that employs a variable-frequency drive for speed control. The blower impeller is directly coupled to the motor, and the shaft is suspended on an active air bearing controller. Thanks to the absence of physical contact and the lack of a lubrication system, the air-bearing fan boasts high efficiency, energy savings, low noise levels, reliable operation, and long-term maintenance-free performance.
Traditional single-stage centrifugal blowers primarily rely on gears for acceleration, requiring gears, bearings, and a lubrication system. Mechanical friction leads to significant energy losses and high noise levels. Air suspension fan Having addressed these issues, it features three core technologies: air bearings, high-speed motors with efficient variable-frequency systems, and precision-cast impellers.
The air-bearing fan features no gearbox, speed increaser, or coupling; it is directly driven by a high-speed motor that employs a variable-frequency drive for speed control. The fan impeller is directly coupled to the motor, and the shaft is suspended on an active air bearing controller. Thanks to the absence of physical contact and the lack of a lubrication system, the air-bearing fan boasts high efficiency, energy savings, low noise levels, reliable operation, and long-term maintenance-free performance.
Air suspension fan It features an integrated, compact design. The impeller, high-speed motor, frequency converter, air bearing, and their control system are seamlessly integrated, enhancing ease of installation and operation. This significantly reduces energy consumption and daily maintenance costs for customers, while also providing a clean working environment. As a result, it boasts advanced technology, reliable performance, simple structure, small size, energy efficiency, and convenient maintenance.
Air suspension fan technology advantages:
1. Advanced Technology: The vast majority of products are manufactured and tested in South Korea.
2. Stable quality: Over 30% of companies in China’s wastewater treatment industry use it. Air suspension fan 。
3. Centrifugal Design: Centrifugal (velocity-type) blowers can deliver greater air volumes (up to a maximum flow rate of 324 cubic meters) and higher pressures (up to a maximum pressure of 1.5 bar). Various models are available to meet the diverse needs of different customers and on-site applications. Compared with conventional Roots blowers, overall efficiency is improved by 8% to 10%. Roots blowers are positive-displacement compressors and have been surpassed by centrifugal technology.
4. Control System: The air suspension fan employs full-frequency conversion control. Its dedicated frequency converter maintains high torque and constant output even at high frequencies and speeds, ensuring it can meet long-term heavy-load operational requirements. Compared to conventional Roots blowers, efficiency is improved by 10% to 15%, depending on operating conditions.
5. Host structure: Air suspension fan By directly connecting the motor rotor to a single-stage compressor, efficiency is improved while eliminating the need for conventional gear speed increasers and belt drives. This results in a simpler structure and easier maintenance. Compared to Roots blowers with belt drives and gear speed increasers, this design achieves energy savings of approximately 5%. 6. Air Bearings: The bearing design requires no lubricating oil whatsoever; throughout the machine’s 15-year design life, not a single drop of lubricant will be needed, ensuring smooth and reliable operation of the entire unit.
7. Permanent-magnet synchronous motors: Both magnetic-levitation blowers and air-bearing blowers now widely adopt high-efficiency permanent-magnet synchronous motors, which has become a prevailing trend in the blower industry. The use of permanent-magnet motors can significantly reduce electricity costs, with motor efficiencies reaching as high as 96%. Each wastewater treatment facility operates 24 hours a day, 365 days a year. For every 1% increase in motor efficiency—calculated based on a 100-kW unit—the annual electricity savings can amount to 6,000 yuan.
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