Page 100 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Waste heat boiler Chapter 4 73

4.4 Waste heat boiler installation estimate
4.4.1 Drums, generating tubes, headers, side, front and rear panels
sheet 1

Estimate
Description MH Qty Unit Qty Unit BM

Install steam and mud drums 0
Steam drum (6 -0 diameter 48 ) 0 3.8 111 Ton 0 Ton 0
00
0
Mud drum (4 -6 diameter 47 ) 0 4.6 63 Ton 0 Ton 0
0
00
Steam drum trim piping 260.0 1 LOT 0 LOT 0
Drum internals—remove and reinstall 136.0 1 Boiler 0 Boiler 0
Generating bank tubes 0
00
2-1/2 OD 0.203 Wall thickness,
00
swage, and roll
Install generating tubes 0.50 2629 EA 0 EA 0
0
2 1/2 Ends—expand tubes in steam and 0.44 5258 End 0 End 0
00
mud drums
Ground assembly—headers, furnace, 0
and wall panels
Fit and weld water wall panels to headers
Lower side wall header—lower side wall
panels
Place lower side wall header 4.0 11 Ton 0 Ton 0
Place lower side wall panels—water wall 2.5 47 Ton 0 Ton 0
Field tube welding—over 2-1/2 TIG 4.2 156 EA 0 EA 0
00
Upper side wall header—upper side wall
panels
Place upper side wall header 4.0 9 Ton 0 Ton 0
Place upper side wall panels—water wall 2.5 47 Ton 0 Ton 0
Field tube welding—over 2-1/2 TIG 4.2 156 EA 0 EA 0
00
Place front wall header 4.0 5 Ton 0 Ton 0
Place front wall panels 2.5 24 Ton 0 Ton 0
Field tube welding—over 2-1/2 TIG 4.2 108 EA 0 EA 0
00
Place rear wall header 4.0 4 Ton 0 Ton 0
Place rear wall panels—water wall 2.5 24 Ton 0 Ton 0
Field tube welding—over 2-1/2 TIG 4.2 108 EA 0 EA 0
00