Erection of Turbine @Auxiliaries
Transcript of Erection of Turbine @Auxiliaries
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ERECTION OF TURBINE &
AUXILIARIES
TURBINE ERECTION
BY
SANJEET KUMAR
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THE ERECTION OF TURBINE CAN
BE DIVIDED IN TO FIVE
ACTIVITIES
INITIAL LEVELING
POCKET GROUTING
TIGHTING OF ANCHOR BOLTSAND RELEVELING
FINAL GROUTING CENTERING THE ROTOR &
LEVELING
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CODENSER ERECTION
FIRST OF ALL INSPECTION OF FOUDATION ISDONE W.R.T. DRAWING
FOUNDATION SPRINGS ARE PLACED INLOCKED CONDITION WITH HEIGHTS ADJUSTEDTO GIVE REQUIRED SLOPE
FABRICATE & ASSEMBLE BOTTOM PLATE &HOTWELL. IT IS PLACED ON SPRINGS.
PRE FABRICATE SIDE WALLS AND WATER BOXTUBE PLATE.
TUBE PLATE & SIDE PLATES ARE PLACED ONBOTTOM PLATE,ALIGNED AND WELDED.
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PRE FABRICATE DOME WALLS
INSTALL TUBE SUPPORT PLATES & WELD ALSO INSTALL STIFFINGSTRUCTURE,AIR EVACUATION ZONE.
INSTALL DOME WALLS &LP HEATER1 SUPPORTING STRUTURE.
INSTALL LPH1. CLEAN CODENSER STEAM SPACE
INSERT CONDENSER TUBE.
WELD CONDENSER NECK WITH LPT EXHAUST HOOD.
HYDRO TEST OF CONDENSER STEAM SPACE AND LEAK TEST
&DRAIN. ASSEMBLE WATER BOX COVERS AND HINGE ASSEMBLY
HYDRO TEST OF WATER SIDE
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LP TURBINE
CHEK AND PREPARE FOUNDATION W.R.T.DRAWING.IDENTIFY LONG. &TRANSVERSE CENTRELINES.
PLACE AND LEVEL LPT OUTER CASING BASE PLATES, IP& LP REAR BEARING BASE PLATE AND GROUT WITHNON SHRINK CEMENT
INSTALL LONGITUDINAL FIXED POINTS FOR FRONT&REAR WALLS
PLACE LP INNER CASING LOWER HALF SECTION ANDMAKE PRELIMINARY ALIGNMENT
PLACE LOWER HALF OF DIVISOR SECTIONS
PLACE LP INNER CASING AND WELD MATCH THEPARTING PLANES
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REMOVE LP OUTER CASING AND INNER CASING UPPERHALF AND PREPARE LP ROTOR FOR PLACEMENT
PLACE LP ROTOR AND DO FINAL
ADJUSTMENT OF LP CASING AND SHAFT SEALS
FIX AXIAL AND RADIAL KEYS OF LPT OUTER CASING.WELD INTERNAL PIPING OF LP CASING
WELD INTERNAL PIPING OF LP CASING
CHEK STEAM FLOW PATH CLEARANCE BOX UP LP INNER CASING AND OUTER CASING
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IP TURBINE
PLACEMENT OF PEDESTALS OF IP REAR AND LPREAR BEARING.IP FRONT AND HP FRONTBEARING PEDESTALS SOLE PLATE ARE
ERECTED. ALL PEDESTALS ARE ALIGNED W.R.T. TURBINE
CENTRE AND TRANSVERSE AXIS.
PEDASTALS ARE GROUTED
CLEANED IPT IS PLACED AND LEVELLED. ALIGN IPT ROTOR WITH LP ROTOR
FIX FRONT BEARING POSITION AXIALLY.
FINAL CENTERING OF IP TURBINE
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HONING OF COUPLING BOLTS OF IP & LP
ROTORS
CROSS AROUND PIPING FROM IP TO LPTIS PARALLEL DONE.
ERECTION OF BARRING GEAR
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HP TURBINE
PREPARE HPT AND PLACE IT INPOSITION,CENTRE AND LEVEL IT.
ALIGN HP ROTOR WITH IP ROTOR.
FINAL CENTERING OF HPT.
ALIGN MOP WITH HP ROTOR.
ROLLING TEST
HONING OF COUPLING BOLTS OF HP & IPROTORS.
FINAL ALINGNMENT OF HPT, IPT & LPT W.R.T.COUPLED ROTOR.
HORN DROP TEST OF HPT &IPT
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CHECK FINAL OIL CLEARANCE OF
BEARINGS AND BOX UP BEARINGS
PEDASTALS. PREPARE AND DO OIL FLUSHING.
INSULATE HPT AND IPT