Screw compressor

High pulsation induced vibrations
Country:
Kuwait / 2020
Application:
Nitrogen generator
Compressor type:
Screw compressor
Service
Air compression
Power:
580 kW
Pressure:
11 bara
Screw compressor
Problem
  • Determine the source of 1st stage side vibrations, causing continuous alarms and machine blocks
  • Apply effective modifications to reduce them below the recommended values

Solution
  • On site vibration detection
  • Data analysis found a dominant frequency that characterizes the totality of plant components – 1st stage Pocket Pass Frequency
  • Countermeasures design focusing on the pipe affected by resonance phenomena
  • Torsional analysis of the screw compressor train