Steam Turbine Overhaule Work

Steam Turbine Overhaule scope of work…:

Steam Turbine Simple Overhaule (SI):

  • Checking Bearing condition.
  • Checking Bearing Clearance
  • Check the shaft alignment
  • Checking Valve HP turbine Governing movement. Governor oil pressure
  • Check the condition of the blade last LP Turbines.
  • Checking Steam Strainer
  • Calibration Turbine protection tools and measuring instruments.

Steam Turbine Mean Overhaule (ME):

  • That Simple Inspection scope of work plus with the work include:
  • Opening turbine casing upper
  • Check the condition of the whole turbine blades.
  • Check the clearance between the rotor and stator
  • Checking the sealing system.
    Steam Turbine Major Overhaule (SE)
  • That Scope ME jobs plus work include:
  • Turbine Rotor Lift and clean the crust of dirt / rust.
  • Remove the fixed blade diaphragm and cleaning it. Stator and rotor cleaning. If removing difficult, cleaning dirt stator and rotor can be done by sand blasting.
  • Checking the rotor and stator defective parts and make repairs if necessary or replace the damaged part.
  • Replace Bearing clearance when it was over
  • Replace all equipment removed, and record clearance.
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