2026-04-09Views：
The principle of permanent magnet variable frequency air compressor is to replace the excitation winding with permanent magnet for excitation. When the three-phase stator windings of the permanent magnet motor (each with a difference of 120 ° electrical angle) are connected to the three-phase alternating current with a frequency of f, a rotating magnetic field that moves at a synchronous speed will be generated.
In a steady state, the main pole magnetic field rotates synchronously with the rotating magnetic field, so the rotor speed is also a synchronous speed. The stator rotating magnetic field and the main pole magnetic field established by the permanent magnet remain relatively static, and they interact and generate electromagnetic torque. Drive the motor to rotate and convert.
The advantages of permanent magnet variable frequency air compressor are as follows:
advantage 1 High energy efficiency and energy saving
at full load, the permanent magnet motor of the permanent magnet frequency conversion screw air compressor produces air volume under low energy consumption. When the load rate of the permanent magnet frequency conversion screw air compressor is less than 20%, the operation efficiency is always as high as 95%, reaching the first-class energy efficiency. Compared with the power frequency screw air compressor, energy saving more than 39.7; compared with ordinary frequency conversion air compressor, energy saving 10%.
Advantage 2: Durable and maintenance-free
permanent magnet frequency conversion screw air compressor adopts rare earth permanent magnet synchronous motor to directly drive the screw host, 120 ℃ without loss of magnetic, life of 10 years. The screw host and motor of the permanent magnet variable frequency air compressor share the same main shaft, no belt or coupling is needed, and the transmission efficiency is 100. The motor has no bearing, and the fault point of the motor bearing is removed.
What are the advantages of permanent magnet variable frequency screw air compressor?
1. energy saving adopts energy-efficient and energy-saving permanent magnet synchronous motor. According to the wide adjustment range of permanent magnet frequency conversion, new type line and exhaust port structure are applied to bring lower voltage drop and higher energy efficiency. Therefore, permanent magnet The machine can reach the first-level energy efficiency standard regardless of full load or light load.
2. the use of cost-effective frequency converter and vector frequency conversion technology, the permanent magnet frequency conversion screw machine has low impact force, stable gas supply pressure, and can adapt to the grid voltage, thus greatly reducing the failure and maintenance of the equipment.
3. intelligent control system can continuously and accurately monitor the operation of the air compressor, and real-time feedback information, but also to achieve multiple host chain and remote control.
Longer 4. life valve, intake adjustment range 0~100%, volume valve adjustment, small pressure loss, stable action, longer life.
5. capacity large capacity oil separator, superior quality oil separation original and gas, liquid filter elements, with five heavy oil and gas separation, oil content control more flexible, to ensure the high quality of compressed air.
The 6. quality is high to avoid equipment operation failure caused by lubricating oil leakage caused by hose aging, and even lead to bad accidents such as host lock.
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