Air compressor control device and method

Abstract

The invention relates to an air compressor control device and method. The device comprises an air compressor motor and an air compressor air storage tank. The device is characterized in that a pressure sensor is disposed in the air compressor air storage tank, one end of the air compressor motor is connected with a frequency converter, and the pressure sensor is connected with the frequency converter. Due to the fact that the air compressor control device is provided with the frequency converter, soft starting and soft stopping of the air compressor motor are achieved, starting impact is reduced, and equipment service life is prolonged. Due to the fact the operation frequency of the motor is variable, motor rotation speed of an air compressor can be automatically adjusted according to air using amount, frequent motor loading and unloading is reduced, operation power of the motor is reduced greatly, the air pressure of an air supply system is kept constant, and energy conservation is achieved.

Description

technical field [0001] The invention relates to the technical field of air compressors, in particular to an air compressor control device and a control method. Background technique [0002] The power of the air compressor motor is generally large, and the starting method is mostly no-load (unloading) star-delta starting, and the loading and unloading methods are both instantaneous. This makes the air compressor have a large starting current when it is started, and it has a large mechanical impact on the equipment when it is loaded and unloaded; it not only causes fluctuations in the power supply voltage, but also causes large fluctuations in the compressed air source; at the same time, this mode of operation It will also accelerate the wear and tear of the equipment and reduce the service life of the equipment. In addition, when the gas consumption is small, the motor cannot adjust the speed and has been running at full voltage, which consumes a lot of power. [0003] In vi...

AI Technical Summary

Problems solved by technology

This makes the air compressor have a large starting current when it is started, and it has a large mechanical impact on the equipment when it is loaded and unloaded; it not only causes fluctuations in the power supply voltage, but also causes large fluctuations in the compressed air source; at the same time, this mode of operation It will also accelerate the wear and tear of the equipment and reduce the service life of the equipment. In addition, when the gas consumption is small, the motor cannot be adjusted in speed and has been running at full voltage, which consumes a lot of power.

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