根据工矿企业供气负荷变化调节的需求,设计了一种以PLC为核心的单螺杆空压机控制系统,通过PLC、变频器实现对多台单螺杆空压机的多项自动控制。本系统控制电路设计精确,性能稳定,提高了供气系统运行的稳定性和可靠性,同时改善了频繁的加载和卸载,延长了设备的使用寿命,节约了能源。 According to the requirements of industrial and mining enterprises to adjust the air supply load, a single screw air compressor control system based on PLC was designed. A number of automatic control of multiple single screw air compressors were realized through PLC and frequency converter. The control circuit of the system has the advantages of accurate design, stable performance, improved stability and reliability of the gas supply system operation, improved frequent loading and unloading, prolonged service life of the equipment and energy saving.