erection of turbine @auxiliaries

7/31/2019 Erection of Turbine @Auxiliaries

1/10

ERECTION OF TURBINE &

AUXILIARIES

TURBINE ERECTION

BY

SANJEET KUMAR


2/10

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


3/10

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.


4/10

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


5/10

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


6/10

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


7/10

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


8/10

HONING OF COUPLING BOLTS OF IP & LP

ROTORS

CROSS AROUND PIPING FROM IP TO LPTIS PARALLEL DONE.

ERECTION OF BARRING GEAR


9/10

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


10/10

CHECK FINAL OIL CLEARANCE OF

BEARINGS AND BOX UP BEARINGS

PEDASTALS. PREPARE AND DO OIL FLUSHING.

INSULATE HPT AND IPT

erection of turbine @auxiliaries

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