| 摘要 |
PROBLEM TO BE SOLVED: To enhance energy-saving performance, and to achieve unit number control for preventing shortening of the service life of an electric motor for driving a compressor, in a compressor system having a plurality of units of compressors.SOLUTION: A compressor system 100 is a system including a turbo-shaped compressor 4 for controlling suction restriction, a rotating speed control type displacement compressor 2 and an ON-OFF type displacement compressor 3. The delivery sides of the turbo-shaped compressor, the rotating speed control type displacement compressor and the ON-OFF type displacement compressor are connected in parallel by a pipe 6. The turbo-shaped compressor, the rotating speed control type displacement compressor and the ON-OFF type displacement compressor have respectively compressor control means 21, 31 and 41. The compressor system includes a delivery pressure detecting means 52 for detecting delivery pressure, and a unit number control board for inputting the delivery pressure and outputting a control command to the respective compressor control boards. |
