Analysis on fracture reasons of last fourstage blade of steam turbine and treatment

Huadian Technology ›› 2011, Vol. 33 ›› Issue (2): 1-3.

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Analysis on fracture reasons of last fourstage blade of steam turbine and treatment

DUAN Jipeng

Xinjiang Baicheng Power Plant, Baicheng 842316, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-02-25 Published:2011-02-25

Abstract

Abstract: The fracture accident of last fourstage blade of the steam turbine in Xinjiang Baicheng Power Plant was occurred again.The reasons of blade fracture were analyzed. The online replacing technology of last fourstage blade with pinned root and concrete requirements were introduced. After the blades were replaced online, the unit operates normally; and the actual effect of the blade replacing technology was obtained.

Key words: steam turbine, last four-stage blade, fracture, online replacement, technology

DUAN Jipeng. Analysis on fracture reasons of last fourstage blade of steam turbine and treatment[J]. Huadian Technology, 2011, 33(2): 1-3.

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Analysis on fracture reasons of last fourstage blade of steam turbine and treatment

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