Investigation on magnetic oxide iron depositionof throttle orifice plate in oncethrough boiler water wall

Huadian Technology ›› 2009, Vol. 31 ›› Issue (6): 45-47.

• 研究与开发 • Previous Articles Next Articles

Investigation on magnetic oxide iron depositionof throttle orifice plate in oncethrough boiler water wall

SHAO Tianyou, WEN Guohua

Yuhuan Power Plant, China Huaneng Group, Yuhuan 317604, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-06-25 Published:2009-06-25

Abstract

Abstract: The structure characteristics of the water wall of oncethrough boiler in Yuhuan Power Plant of China Huaneng Group 1000MW ultrasupercritical unit were introduced. The reason of magnetic oxide iron deposition was analyzed which causes overtemperature and pipe bursting. The influences of ultrasupercritical water on metal material were analyzed. The methods for preventing and treatment the magnetic oxide iron deposition were suggested, which is helpful to decrease the pipe bursting and increase the safety and reliability of the units.

Key words: once-through boiler, water wall, throttle orifice plate, magnetic oxide iron, deposition

SHAO Tianyou;WEN Guohua. Investigation on magnetic oxide iron depositionof throttle orifice plate in oncethrough boiler water wall[J]. Huadian Technology, 2009, 31(6): 45-47.

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Investigation on magnetic oxide iron depositionof throttle orifice plate in oncethrough boiler water wall

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