BELZONA RESTORES FOUR CONDENSER TUBE SHEETS IN FIVE DAYS
Industry: Power (POWR)
Application: HEX-Heat Exchangers (HEX)
Substrate: Bronze tube sheets, copper tubes, stainless steel inserts.
Customer Location: Power plant in Denver, Colorado
Application Date: February 2000
Products:
Belzona® 1121 (Super XL-Metal)
Belzona® 1341 (Supermetalglide)
Problem: Insertion of new stainless steel sleeves caused ligament damage to the inlet tube sheets resulting in severe tube to tube sheet leaks and a forced outage.
Photograph Descriptions
- Initial view of bottom of one tube sheet prior to grit blasting
- Application of Belzona® 1121 and Belzona® 1341 underway
- Completed tube sheet ready to go online
Application Situation
Condenser tube sheets of 350 MW generator - each contains 6, 453 tubes.
Application Method
The application was carried out in accordance with Belzona Know-How System Leaflet HEX-1. The entire application of all four tube sheets, including blasting, occurred within five days with a crew of approximately 28 men.
Belzona Facts
Shutdown of the #4 generator resulted in revenue losses of over $140,000 per day. Not only did the Belzona crew cut the down time by 75%, the final application has resulted in the highest efficiency the unit has recorded in its entire operating history.
