Heat Recovery Steam Generator Cleaning


Equipment inspections often require the HRSG sections to be drained and open. Performing inspections throughout the commissioning process is advised to ensure that debris is removed and deficiencies in waterside surfaces are detected and corrected. Inspections should include the following activities:

  • Crawl-through visual inspection of waterside surfaces of all vessels (steam drum, condenser, makeup and condensate tanks, and deaerator, if installed). Cogeneration facilities may have additional vessels that require inspection.

  • Videoscopic inspections of headers and a representative number of tubes in each accessible tube bundle. Individual HRSG sections should be inspected immediately before assembly to document the “as received” condition. This inspection will help identify waterlines and corrosion which may be present before assembly.

  • Tube sampling. If the videoscopic inspections indicate the presence of significant deposits in the tubes, a tube sample may need to be collected to select an appropriate cleaning solvent.

Preoperational Cleaning
Water Flushing
Alkaline Degreasing/Boil Out
Chemical Cleaning
Post-Cleaning Inspection
Waste Disposal
HRSG Chemistry Monitoring and Control Systems

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In