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E-587 - Compressors Operation

5 days MAT/COMPOPGB
Level
Proficiency
Audience
  • Operation and technical department staff involved in the operation of centrifugal and volumetric compressors.
  • Employees in charge of running and checking compression systems.
Purpose
  • This course provides a better understanding of the technology, performance and operation of centrifugal and volumetric compressors.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • describe the technology of centrifugal and volumetric compressors,
  • select the adequate operating conditions,
  • explain the main operating problems,
  • be involved in a troubleshooting process.
Prerequisite
  • No prerequisites for this course.

COMPRESSION PREREQUISITES 0.5 day
  • Compression fundamentals: isentropic and polytropic compression.
  • Pressure, flowrate, specific gravity, friction losses, centrifugal force, mechanic and aerodynamic power, energy conservation.
  • Compressor choice and typical upstream implementations.
TECHNOLOGY & PERFORMANCE 2 days
  • Centrifugal compressors:
  • Different types of centrifugal compressors.
  • Component parts and architecture of a centrifugal compressor.
  • Technology of the essential components: stator, rotor, bearings, thrust bearing, seals.
  • Vibrations, critical speed, dynamic balancing.
  • Auxiliary equipment: lubrication system, buffer gas, balancing line, …
  • Safety parameters: axial displacement, vibrations, bearing and thrust bearing temperatures, oil pressure, …
  • Changes in gas velocity and pressure in a centrifugal compressor.
  • Mass and volume flow rate as a function of pressure, temperature and the nature of the gas.
  • Discharge temperature, power absorbed as a function of the nature of the gas and the operating conditions.
  • Compressor performance: influence of process parameters, impeller velocity and geometry.
  • Characteristic curves of the circuit and the compressor. Influence of the operating conditions: intake pressure and temperature, nature of the gas, rotation speed, IGV position.
  • Reciprocating compressors:
  • Different types of reciprocating compressors.
  • Component parts and architecture of a reciprocating compressor.
  • Technology of the essential components: cylinder, piston, valves, sealing systems, crankshaft, connecting rod, …
  • Auxiliary equipment: lubrication of motion parts and cylinders, cooling interstage and cooling devices systems, connections to the flare.
  • Safety devices: sealing systems, connections to the flare circuit.
  • Compression rate and volume flow rate; influence of the operating conditions: intake pressure and temperature, nature of the gas, rotation speed.
  • Discharge temperature, power absorbed as a function of the nature of the gas and the operating conditions.
  • Characteristic curves of the compressor.
  • Rotary compressors:
  • Different types: screw, liquid ring, lobes, sliding vanes, …
  • Component parts and architecture of a rotary compressor.
  • Auxiliary equipment: lubrication system.
  • Typical using.
OPERATION 1.5 days
  • Centrifugal compressors:
  • PID and logic security matrix analysis.
  • Flow rate regulation. Adaptation to service conditions.
  • Surge and antisurge devices. Conventional control.
  • Start-up, shutdown and isolation: hazards related to these phases.
  • Survey and monitoring the compressor and auxiliary equipment under normal operating conditions.
  • Reciprocating compressors:
  • Flow adjustment.
  • Conventional control: start-up, shutdown and isolation.
  • Monitoring the compressor and auxiliary equipment under normal operating conditions.
  • Serie and parallel functioning.
TROUBLESHOOTING 0.5 day
  • Frequent problems: surge, slugging, lack of lubrication, vibrations, …
SAFETY IN OPERATION 0.5 day
  • Industrials incidents and accidents analysis.