某330 MW汽轮机高中压转子间断性振动诊断处理  

Diagnosis and Treatment of Intermittent Vibration of 300 MW Turbine HP-IP Rotors

作　　者：党原健[1] 李健[1] 李小彬[1] 黄伟钢[1] 

机构地区：[1]陕西电力科学研究院,陕西西安710054

出　　处：《陕西电力》2011年第1期62-65,共4页Shanxi Electric Power

摘　　要：某330 MW机组汽轮机高中压转子出现间断性振动,轴振最大达130～141μm,超过振动保护值。分析认为,本次振动波动的原因是该机组2号、3号瓦油挡处油泥堆积碳化导致动静碰摩。在小修过程中检查清理油挡并改善高、中压汽缸端部保温后,机组振动恢复正常。This paper introduces the intermittent vibration occurred in a 300 MW turbine HP-IP rotors, which is up to 130～141 ？m and exceeds the protection value, and points out that the vibration wave is caused by rub-impact fault due to the deposition and carbonization of oil sludge at oil catch in No.2 and No.3 bearings. Through the clean-up of the oil catch and the improvement of thermal insulation property of HP-IP cylinder end region, the intermittent vibration of units recovered to normal patterns.

关 键 词：汽轮机 转子 间断性振动 油碳化 

分 类 号：TK263.6[动力工程及工程热物理—动力机械及工程]