from the conferences organized by TANGER Ltd. provisional website
The paper solves the cause and character of the damages of tubes, or evaporator tubes made of refractory carbon steel L290NB, used for the evaporators of combustion chambers of steam boilers used for production of steam, and necessary for subsequent production of electricity. Based on the evaluation of steel samples defected by perforation with incrustation deposit, the mechanism degrading the material of evaporator boiler tubes was discovered. The higher temperature in the combustion chamber, higher content of alkalizing solution of P2O5 and presence of copper ions are the cause of such degradation.Keywords: surface, corrosion, tube, analysis, steam.
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