Page 253 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Sample estimates Chapter 11 231

11.7.2 Erect headers & panels, weld water wall tubes, burner,
soot blower, superheater sheet 2

Historical Estimate
Description MH Unit Qty Unit BM
Erect headers and wall panels, fit and weld 5291
wall panels
Scaffolding and rigging 136.00 Boiler 1.0 Boiler 136
Erect right-side wall panels—water wall 2.50 Ton 144.0 Ton 360
Fit and weld filler bar at tube welds 1.00 Space 561.6 Space 562
Fit and weld filler joining membrane panels 0.60 LF 192.0 LF 115
Erect left-side wall panels—water wall 2.50 Ton 144.0 Ton 360
Fit and weld filler bar at tube welds 1.00 Space 561.6 Space 562
Fit and weld filler joining membrane panels 0.60 LF 192.0 LF 115
Erect front wall panels—water wall 2.50 Ton 144.0 Ton 360
Fit and weld filler bar at tube welds 1.00 Space 518.4 Space 518
Fit and weld filler joining membrane panels 0.60 LF 187.2 LF 112
Erect rear wall panels—water wall 2.50 Ton 144.0 Ton 360
Fit and weld filler bar at tube welds 1.00 Space 518.4 Space 518
Fit and weld filler joining membrane panels 0.60 LF 187.2 LF 112
Erect roof panels—water wall 2.50 Ton 108.0 Ton 270
Fit and weld filler bar at tube welds 1.00 Space 705.6 Space 706
Fit and weld filler joining membrane panels 0.60 LF 207.6 LF 125
Fit and weld water wall tubes 4.20 EA 1975.0 EA 8295
Erect, fit, and weld primary/secondary 1817
headers
Primary super heater headers/coils 4.20 Ton 115.9 Ton 487
10.75 diameter inlet header 4.00 Ton 2.5 Ton 10
00
00
20 outlet header 4.00 Ton 6.0 Ton 24
Weld super heater tubes; 1.75 OD 3.70 EA 350.4 EA 1296
00
Burner system 492
Burner and wind box 59.40 Ton 5.7 Ton 337
Fan with drive 45.00 Ton 2.1 Ton 96
Silencer 60.00 EA 1.0 EA 60
Sootblowers 1280
Sootblower
Install rotary and retractable sootblowers
Super heater—sootblower with pipe, valve, 64.00 EA 12.0 EA 768
fitting
Economizer—sootblower with pipe, valve, 64.00 EA 4.0 EA 256
fitting
Generating bank—sootblower with PVF 64.00 EA 4.0 EA 256