Belzona® Restores Four Condenser Tube Sheets In Five Days

Industry:

Power (POWR)

Application:

Heat Exchangers (HEX)

Customer Location:

Power plant in Denver, Colorado

Application Date:

February 2000

Application Situation:

Condenser tube sheets of 350 MW generator - each contains 6, 453 tubes.

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.

Products:

Belzona® 1121 (Super XL-Metal)

Belzona® 1341 (Supermetalglide)

Substrate:

Bronze tube sheets, copper tubes, stainless steel inserts.

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.

Photographs Description

1. Initial view of bottom of one tube sheet prior to grit blasting
2. Application of Belzona® 1121 and Belzona® 1341 underway
3. Completed tube sheet ready to go online