Condenser tube erosion-corrosion repairs using coatings
Condenser corrosion and erosion problems involving condenser (heat exchanger) water boxes, tubesheets, and tubes have been a maintenance problem for many years and continue to be so. Most often the materials of construction for surface condensers are galvanically incompatible. Usually the water box is carbon steel (CS) or cast iron, the tubesheet can be either CS or a copper-based alloy, and the tubes frequently are either a copper-based alloy, stainless steel (SS), or titanium. When erosion-corrosion problems arise and upgrading the tube alloy is not feasible or does not correct the problem there is a relatively inexpensive method of preventing or reducing the damage--thereby prolonging the life of the tube. Operators can coat the inlet end in the attacked region (normally 6 to 10 in. inside the tube) and the tubesheet. The coating material usually is a 100% solid epoxy or other high-solids, high-quality organic material.
- Research Organization:
- Corrosion Control Specialist, Inc., Park City, UT (US)
- OSTI ID:
- 20017432
- Journal Information:
- Materials Performance, Vol. 39, Issue 2; Other Information: PBD: Feb 2000; ISSN 0094-1492
- Country of Publication:
- United States
- Language:
- English
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