Heat Exchanger End Cover Repaired and Coated with Belzona

KHIA ID: 8501

Industria: Power (POWR)
Solicitud: HEX-Heat Exchangers (HEX)
Sustrato: Carbon Steel

Ubicación del cliente: Nova Scotia, Canada
Fecha de aplicacion: May 2021

Productos:
Belzona 1221 (Super E-Metal)

Belzoan 9341 (Reinforcement Tape)

Belzona 1311 (Ceramic R-Metal)

Belzona 1341 (Supermetalglide)

Fecha de aplicacion: Seawater had severely corroded this end cover causing very thin wall conditions leading to holing. Holes were more pronounced after grit blasting. The end cover was also severely pitted.

Descripciones de fotografías

1. Internal of end cover after cleaning to remove soluble salts from the substrate.

2. End cover freshly grit blasted and ready for Belzona.

3. End cover pits/holes filled with Belzona 1311 and first coat of Belzona 1341 blue applied.

4. Second coat of Belzona 1341 grey applied.

Situación de la aplicación

Holed and heavily pitted end cover for seawater side of heat exchanger for a local thermal power plant.

Método de aplicación

Belzona 1221 and Belzona 9341 were used to reinforce over the holes on the external side of the end cover. This was to provide as a firm backing so the internal repairs could be carried out in accordance with Belzona Know-How System Leaflets HEX-2 and HEX-3.

Datos de Belzona

Due to the short outage for this power plant, new end covers were not readily available and would take too long to fabricate. The Belzona repair took 1.5 days to complete, at a fraction of the cost it would be to fabricate new end covers due to the high price of steel.

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