Forming reasons of oxide skin in supercritical/ultrasupercritical unit and preventive measures

Abstract

Abstract: The forming mechanism of the oxide skin in supercritical/ultrasupercritical unit and the main conditions of the oxide skin dropping in the inner wall of the superheater and the reheater were introduced. The main harms of the oxide skin were expounded. The relations between the oxide forming and the unit operation mode, the system configuration and the material selection were analyzed. The measures for preventing the oxide skin in periods of design, commissioning and operation were put forward.

Key words: supercritical/ultra-supercritical unit, oxide skin, oxygenation treatment, bypath system, superheater, reheater

FAN Wenbiao. Forming reasons of oxide skin in supercritical/ultrasupercritical unit and preventive measures[J]. Huadian Technology, 2011, 33(3): 1-4.

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Forming reasons of oxide skin in supercritical/ultrasupercritical unit and preventive measures

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