Reciprocating compressor

Diagnostics leads to compressor revamp
Predictive maintenance leading to compressor improvement
Country:
Italy
Application:
Petrochemical plant
Compressor type:
Reciprocating compressor – 2 stg.
Service
HC Polymerization
Power:
1800 kW
Pressure:
40 bara
Reciprocating compressor
Problem

Two cylinder-distance piece tie-rods found broken

  • High cylinder vibrations
  • High pin load caused by suction pressure higher than design
Solution
  • 2nd stage cylinder bore diameter modified
  • High-resistance rolled thread tie-rods
  • Volume bottles size increased