发电机密封油系统油击故障原因分析及对策

华电技术 ›› 2012, Vol. 34 ›› Issue (1): 6-9.

发电机密封油系统油击故障原因分析及对策

穆肖静

华能铜川电厂，陕西铜川727000

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-01-25 发布日期:2012-01-25

Analysis on reasons of oil hammer in generator seal oil system and countermeasures

MU Xiaojing

Huaneng Tongchuan Power Plant, Tongchuan 727000, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-01-25 Published:2012-01-25

摘要/Abstract

摘要： 华能铜川电厂2×600MW氢冷机组采用单流环式密封油系统，该系统多次出现类似水锤的油击现象，还同频出现了密封油泵出口压力、油氢差压的大幅波动，对其故障原因进行了分析并提出了改进措施。

关键词: 氢冷发电机, 密封油系统, 油击, 真空油箱, 浮球阀

Abstract: In 2×600MW hydrogencooled unit of Huaneng Tongchuan Power Plant, the singlering seal oil system is adopted. In this system, the phenomenon of oil hammer, which is similar to the water hammer, occurred many times; and large fluctuation of the outlet pressure of seal oil pump and the pressure difference of oil and hydrogen occurred in the same frequency. The reasons of the faults were analyzed; and some improvement measures were put forward.

Key words: hydrogen-cooled generator, seal oil system, oil hammer, vacuum oil tank, float valve

穆肖静. 发电机密封油系统油击故障原因分析及对策[J]. 华电技术, 2012, 34(1): 6-9.

MU Xiaojing. Analysis on reasons of oil hammer in generator seal oil system and countermeasures[J]. Huadian Technology, 2012, 34(1): 6-9.

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