MAINTENANCE OF TURBINE LUBRICATION SYSTEM AND CONDENSER.ppt

8/13/2019 MAINTENANCE OF TURBINE LUBRICATION SYSTEM AND CONDENSER.ppt

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FUNCTIONS REDUCE FRICTION IN ROTATING ASSEMBLIES

COOLING THE SYSTEM

REMOVAL OF WEAR DEBRIS.


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TYPES OF LUBRICATION SYSTEM SUMP LUBRICATION

FORCED LUBRICATION


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TURBINE LUBRICATION SYSTEM Self contained L.O system for STG

Shaft driven main oil pump

AC motor driven auxiliary oil pump

DC motor driven emergency oil pump

Duplex shell & tube type L.O.Coolers

Duplex L.O filters

Portable L.O centrifuge

Mist eliminators for oil recovery


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MAINTENANCE PHILOSOPHY PREVENTIVE

PREDICTIVE

CONDITION MONITORING

BREAKDOWN

OVERHAULINGS


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Lubrication system

Cleaning

Leakages Oil level in tanks

Strainer cleaning

Leakages in lines

Any other abnormality

Preventive maintenance


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Condition monitoring

Trend analysis

Planning activities based on analysis

Predictive maintenance


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RLA of components

Replacement based on results RLA

OEM recommendations

Reliability Centered Maintenance


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Risk evaluation

Prioritizing risk for the system/assemblies

Planning

REAP


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Equipment failures(shafts/bearings etc)

Abnormal sounds

Malfunctioning/leakage of valves etc

Breakdown maintenance


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RLA of components

Replacement based on results RLA

OEM recommendations

Reliability Centered Maintenance


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Equipment failures(shafts/bearings etc)

Heavy steam leakages

Abnormal sounds

Malfunctioning/leakage of valves

Breakdown maintenance


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Overhauling of lubrication system MOP servicing

Bearing inspections-DPT,UT

Replacement of wear rings, bearings on conditionbasis.

Replacement of jacking oil hoses in bearins.

Inspection of all line joints.


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Overhauling of lubrication system MOT cleaning and inspection

Oil cooler tube cleaning

Servicing of oil valves Servicing of lub oil pumps

Servicing of jacking oil pumps

Inspection of all lines

Oil flushing


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Journal bearings

Thrust cum journal bearing


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TURBINE HYDRO-

DYNAMIC BEARING


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SHAFT MISALLIGNMENT RADIAL

AXIAL

BOTH


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ALLIGNMENT PROCEDURE MANUAL

LASER ALLIGNMENT SYSTEM

ADDING OR REMOVAL OF SHIM


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BALANCING PROCESS MEASUREMENT (VIBRATIONS AT SUPPORTS)

DATA ANALYSIS

REFERENCE MARKS(RADIUM STRIPS)

BALANCING WEIGHTS

REPETITIVE PROCESS

(HIT&TRIAL METHOD)


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OVERHAULING OF CONDENSER


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CONDENSER TUBES FOULING

SCALING

EROSION CHOCKING


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Condenser tube cleaning On load tube cleaning

Offload tube cleaning


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Cleaning techniquesJet

Bullet

Chemical(Sulphanic acid) Magnetic descaling


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CONDENSER ONLOAD TUBE CLEANING

TEMPERATURE AND HUMIDITY CONTROL

TUBE CLEANING

ATTENDING TUBE LEAKAGES


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Overhauling Activities1.CONDENSER TUBE EDDY CURRENT TESTING

2. CONDENSER TUBE WATER JET CLEANING

3.CONDENSER TUBE BULLET CLEANING

5. REPLACEMENT OF SACRIFICIAL ANODES IN

WATER BOX


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Documents

MAINTENANCE OF TURBINE LUBRICATION SYSTEM AND CONDENSER.ppt