Page 102 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Waste heat boiler Chapter 4 75

4.4.3 Down comers and code piping sheet 3

Historical Estimate
Description MH Qty Unit Qty Unit BM

Erect and install down comers and code 0
piping
00
Handle down comers; 12 OD 0.562 1.32 280.0 LF 0 LF 0
WT 40 0
Down comers; 12 OD 0.562 WT BW 12.6 14.0 EA 0 EA 0
00
00
Handle 12 300# BW main stop valve and 5.4 2.0 EA 0 EA 0
Ck valve
12 0.562 WT CS BW 12.60 4.0 EA 0 EA 0
00
Handle 10 300# BW feed water stop and 136.00 2.0 EA 0 EA 0
00
Ck valve
10 0.562 WT CS BW 4.00 4.0 EA 0 EA 0
00
Handle 8 300# BW spray control valves 7.20 4.0 EA 0 EA 0
00
8 0.562 WT CS BW 8.40 8.0 EA 0 EA 0
00
Handle 3 300# safety valves 2.70 3.0 EA 0 EA 0
00
3 0.375 WT CS BW 1.50 6.0 EA 0 EA 0
00
Handle 3 300# control valves—boiler 2.70 2.0 EA 0 EA 0
00
3 0.375 WT CS BW 1.50 4.0 EA 0 EA 0
00
Handle 2 300# control valves—boiler 1.00 2.0 EA 0 EA 0
00
2 0.375 WT CS BW 1.10 4.0 EA 0 EA 0
00
Handle 4 300# flanged flow elements 3.60 6.0 EA 0 EA 0
00
4 300# Bolt up 1.60 12.0 EA 0 EA 0
00
Handle 10 0.562 pipe 1.10 160.0 LF 0 LF 0
00
Handle 8 0.562 pipe 0.88 160.0 LF 0 LF 0
00
Handle 4 0.375 pipe 0.28 225.0 LF 0 LF 0
00
00
Handle 3 0.375 pipe 0.21 160.0 LF 0 LF 0
Handle 2 0.375 pipe 0.18 160.0 LF 0 LF 0
00
4.5 Waste heat boiler—Equipment installation man-hours
Actual Estimated
Facility—biomass plant major equipment MH BM
Install steam and mud drums 1103 0
Generating bank tubes 3628 0
Ground assembly—headers, furnace, and water wall panels 2692 0
Erect headers and wall panels, fit and weld water wall panels 4432 0
Fit and weld water wall tubes; 2-31/32 OD 0.203 WT, BW (TIG) 6912 0
00
00
Erect, fit and weld primary/secondary headers and superheater 1514 0
elements
Burner system 280 0
Soot blowers 1280 0
Erect and install down comers and code piping 1509 0
Waste heat boiler—equipment and piping installation man-hours 23351 0