After
receipt of sequential material and timely pre-assembly of Boiler Pressure Parts
planning for
erection of the pressure parts is to be taken up. For Pressure
Part erection ( beside cranes )
Electrical
winches , Max puller , chain pulley block etc are required .
Capacity of the above equipment will be as
per requirement of the system. We
have planned our erection activities in such a way that hydraulic test
(drain able) is achieved by 12th month from start of pressure part
erection.
First month of erection plan:
Collector
vessel with internals, attachment and supports
Separator
vessel with internals, attachment and supports
Furnace
upper front wall header
Furnace
upper sidewall header L & R
Super Heater
Radiant Roof inlet header
Re hater
header supports and suspension
All
suspension for the above
2nd month erection plan
Collector vessels with internals, attachment and
supports
Furnace
upper vertical wall
Furnace
riser pipes /links
( If the
riser comes in one piece then it will longer length and having twist and turn
in its layout . It will be advisable to lift it at the earliest to avoid
difficulties in erection. But if it comes in two or three
pieces then it can be
done afterwards also.)
Super heater
final spaced inlet header after Pre-assembly at bed
Super heater
back pass side wall inlet header L & R
Super
heaters extended side wall inlet headers
Super heater
final spaced outlet header
Super heater
Radiant roof outlet header
All suspension
and structural arrangement
Riser pipes
,desh link ,SH connecting pipes –saturated etc
Re heater
vertical panel outlet header pre assemble with terminal tubes L&R
Re heater
cross over links etc.
Re heater
vertical platen inlet header after per-assembly with terminal tubes
3rd month erection plan
Furnace upper rear screen / hanger Outlet header after
Pre-assembly
Furnace
vertical side wall panels L & R
Furnace side
risers & Furnace rear riser
Furnace
Front riser and Furnace screen tubes ( after Pre-assembly)
Furnace
Hanger tubes (after pre-assembly)
Furnace corner tubes upper and lower
Furnace
upper Buck stays
Super heater
platen inlet header ( after pre-assembly)
Super heater
platen outlet header ( after pre-assembly)
Super heater
front outlet header ( after Pre-assembly)
Super heater
vertical platen coil L & R (after pre-assembly)
Super heater
steam cooled wall rear upper and inter panel L&R
Super heater
steam cool rear wall panel lower L & R
Super heater
cool side wall panel upper L & R
Super heater
steam cool side wall upper left and inter left
Super heater
steam cool side wall upper right and inter right
Super heater
rear roof panels L & R after
pre-assembly
Super heater
Radiant wall roof panel + attachment after pre-assembly
Low
temperature Re-heater outlet header after pre-assembly
Low
temperature Re-heater outlet terminal tubes after pre-assembly
4th month erection plan
Furnace front wall interim header ( after pre-assembly)
Furnace side
wall interim header ( after pre-assembly)
SOFA panel
opening panel
Furnace
upper spiral front wall Panel (pre-assembly)
Furnace upper spiral side wall panels - L&R
Furnace extended wall panels
Separator collector link pipes
Furnace Intermediate Header Supports front
Furnace Intermediate Header support -Rear
Furnace Spiral Wall supports Misc items
Furnace upper inter buck stays
Rear arch Buck stays
Upper back pass buck stays
Back pass lower rear header
Super heater Back pass front wall inlet header
Super heater front wall outlet header
Super heater final spaced assembly L & R
Super heater upper and lower panels
Super heater steam cool side wall panels L & R
Low temperature Re heater pendent assembly
5th
month erection schedule
Burner Panels
|
Furnace Lower Spiral
|
Furnace Lower Spiral
Front wall panels
|
Furnace vertical
wall panels rear ( after ore-assembly)
|
Mixing Sphere
|
Furnace Intermediate
Header Support Sides L&R
|
Furnace wall Supports front
|
Furnace wall Supports Sides L & R
|
Furnace lower inter
Buck stays
|
SH Extended Side
wall outlet header (after pre-assembly)
|
SH vertical platen
coil left & right.
|
Re Heater
Vertical Platen Coil L & R
|
Low Temperature Re
Heater coils upper (after pre-assembly)
|
Low Temperature Re
Heater coils inter ( after Pre- assembly)
|
RH vertical platen
coil assy left & RH vertical platen front coil assembly right.
|
( CONTINUED TO PART II)
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