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Jingren High-End Energy-Saving Air Compressor
To achieve a balance between the exhaust volume of air compressors and the user's gas consumption, the commonly used gas volume regulation methods for ordinary air compressors include intake throttling regulation and load/unload regulation. However, due to reasons such as excessive vacuum caused by intake throttling and pressure loss during loading/unloading, these methods do not yield ideal energy-saving effects.
Later, with the development of variable frequency motor control technology, a control method that adjusts motor speed has emerged. This method allows the power consumption of the air compressor to change linearly with the exhaust volume, and it is gradually becoming widespread. However, this control method has several drawbacks:
The efficiency of a standard asynchronous motor decreases significantly when its speed and load are less than the designed rated point, with the degree of efficiency loss being more pronounced as the difference increases.
Low-frequency operation of a standard asynchronous motor can result in insufficient output torque, leading to the inverter tripping due to "motor torque overload" error.
Standard asynchronous motors may exhibit unstable rotational speed, increased vibration and noise, and higher heat generation when operating at lower frequencies.
Even with current vector control, these drawbacks cannot be completely eliminated.
The new control method employs a permanent magnet motor with a dedicated variable-frequency drive, offering high efficiency that consistently maintains a high level, constant torque operation at any speed, stable speed, rapid response to speed changes (acceleration time from 0 to rated speed within 50ms, with no surge current), and low noise.
