Difference between permanent magnetic frequency and power frequency air compressor
Permanent magnetic variable frequency air compressor is an air compression equipment that combines permanent magnetic motor and variable frequency technology, with characteristics of high efficiency, energy saving, and environmental protection. The power frequency constant speed air compressor is a traditional type of air compressor, which works based on volumetric compression. The crankshaft is driven by an electric motor, which drives the connecting rod to make the piston reciprocate, thereby changing the cylinder volume.
The difference between
permanent magnetic variable frequency air compressors and
power frequency air compressors lies in their power control technology, energy efficiency performance, and applicable scenarios.
1.Different working principles
The
permanent magnetic variable frequency air compressor automatically adjusts the output power according to the actual gas consumption through permanent magnet motor and variable frequency control technology. Its working principle is similar to the energy-saving control of fan motors and water pumps. When the system's air consumption decreases, the compressor slows down and reduces the output compressed air volume; On the contrary, increasing the speed increases the compressed air volume to maintain a stable system pressure value.
The
power frequency fixed speed air compressor is usually driven by a fixed frequency motor, which operates at a fixed frequency, usually 50Hz. The motor drives the piston to perform reciprocating motion in the cylinder through the crankshaft connecting rod mechanism, achieving the suction, compression, and discharge of air. Throughout the entire operation, the speed of the motor remains constant, and the displacement of the air compressor is relatively stable.
Characteristics of
power frequency fixed speed air compressor1. General pressure stability: The power frequency constant speed air compressor can output relatively stable pressure in a stable operating state. However, there may be some fluctuations in pressure during the loading and unloading switching process.
2.Small range of gas volume regulation
3.High energy consumption
The motor speed of the power frequency constant speed air compressor remains unchanged, and the motor current during no-load operation will reach 60% -70% of that during full load operation, resulting in wastage of this amount of electricity. The life service of the motor is short.
Characteristics of
permanent magnet variable frequency air compressor1.Energy saving and efficient
No load loss, significantly improved energy utilization rate
2.Environmental Protection
Low carbon emissions, in line with national energy conservation and emission reduction policies, help enterprises achieve green production.
3.Intelligent control
Equipped with the latest intelligent management system, it provides remote monitoring and multi machine joint control functions for easy daily management.
4.Long service life of machinery and equipment
