Research on the Generation and Prevention Measures of Oxide Scales in Supercritical Units
This article briefly analyzes the common accidents and causes caused by oxide scales in supercritical units,and explains the formation mechanism and influencing factors of oxide scales in supercritical units.Based on this,a series of key technologies and measures for the prevention and control of oxide scales in supercritical units are proposed,including appropriately reducing the cooling rate of the boiler,continuously promoting the standardization of desuperheating water operation,solidifying the operation of dry-wet state conversion,and applying the essentially safe boiler feedwater oxygenation treatment method.This realizes the optimized control of oxide scale generation and shedding,reducing the probability of tube burst accidents caused by oxide scale shedding in superheaters.
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