ScopeWater walls · superheaters · reheaters · economizers
DeliverableInspection report / defect list / repair advice
1 · Equipment Overview
| Function | Safety inspection of boiler heating surfaces. |
| Methods | Visual inspection · wall-thickness mapping · NDT. |
| Focus zones | Sootblower lanes, welds, bends, expanded joints. |
| Deliverable | Inspection report with repair recommendations. |
2 · Maintenance Process
Site preparationStop, cool, isolate, ventilate; confirm safe entry.
Internal surveyVisual inspection of furnace / flues / surfaces; record slagging and fouling.
Thickness mappingUT spot measurements at key sections; mark thinned areas.
NDTSurface / UT inspection of welds for cracks and defects.
Defect recordsPhotograph and log defect positions and sizes.
Re-check after cleaningRe-inspect after slag / ash removal.
Repair adviceRecommend replacement / weld repair / patches.
Inspection reportIssue report: defect list, conclusions, re-inspection interval.
3 · Key Process Photos
4 · Acceptance & Handover
Thickness mapping and NDT completed; defect positions and sizes fully recorded; repair advice clear; inspection report issued with defect list, conclusions and re-inspection interval. Note: boiler inspection is governed by on-site measured data — thickness records are incorporated into the formal report.