Energy-saving intelligent control device of air compressor

Abstract

The invention discloses an energy-saving intelligent control device of an air compressor. The energy-saving intelligent control device comprises an external power supply, a switching unit, a circuit controller, a variable-frequency speed regulator, a PID (proportion, integration and differentiation) regulator and a pressure sensor. The switching unit comprises a mains supply contactor and a power-saving contactor, one of an input end of the mains supply contactor and an input end of the power-saving contactor is selectively conducted with an output end of the external power supply, and the circuit controller is electrically connected between an output end of the mains supply contactor and a motor of the air compressor; the variable-frequency speed regulator is electrically connected between an output end of the power-saving contactor and the motor of the air compressor, the pressure sensor can detect air pressure signals in an air storage tank and transmit the air pressure signals to the PID regulator, the PID regulator analyzes and computes the air pressure signals and transmits control commands to the variable-frequency speed regulator, and the rotation speed and torque of the motor of the air compressor can be regulated by the variable-frequency speed regulator. The energy-saving intelligent control device has the advantages that the air compressor can stably run according to a set pressure value, mechanical impact force can be reduced, and energy can be saved.

Description

technical field [0001] The invention relates to the field of energy-saving control devices for air compressors, in particular to an intelligent energy-saving control device for air compressors. Background technique [0002] The shaft power required on the drive shaft of the air compressor is directly related to the exhaust pressure and speed. In actual operation, the air compressor does not operate under the rated working condition. The fluctuation of the exhaust pressure not only directly affects the actual The change of the shaft power will cause certain wear and tear to the moving parts such as bearings; moreover, it will also cause a large amount of electric energy to be wasted. Contents of the invention [0003] In order to overcome the above defects, the present invention provides an energy-saving intelligent control device for an air compressor. The energy-saving intelligent control device has a perfect mains / power-saving conversion function, stable air pressure, an...

AI Technical Summary

Problems solved by technology

[0002] The shaft power required on the drive shaft of the air compressor is directly related to the exhaust pressure and speed. In actual operation, the air compressor does not operate under the rated working condition. The fluctuation of the exhaust pressure not only directly affects the actual The change of shaft power will cause certain wear and tear on moving parts such as bearings; it will also cause a large amount of electric energy to be wasted

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