Diagnosis of overtemperature of M701F gas turbine disk and treatment

Abstract

Abstract:

Abstract:After the gas turbine M701F was imported into our country, the over temperature alarms of the secondary stage rotor disk were occurred successively. Based on analysis, it was determined that the reason of the over temperature of secondary stage rotor disk is aging of the gas turbine, which leads the cooling air pressure to be unbalance. The orifices on the secondary vane fixed blade cooling air throttle oriice plate had been enlarged. The temperature of secondary stage rotor disk was reduced sharply, but the unit efficiency and the output power of the gas turbine were decreased somewhat.

Key words: Keywords:high cooling tower, conentional cooling tower, operation and maintenance, initial investment, cost recovery, economy

XIE Bing, XUE Shaohua. Diagnosis of overtemperature of M701F gas turbine disk and treatment[J]. Huadian Technology, 2015, 37(7): 35-37.

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Diagnosis of overtemperature of M701F gas turbine disk and treatment

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