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| 汽轮机前轴承水平振动偏高的原因分析和处理 |
| Analysis and Solutions of the Excessive Horizontal Vibration of the Steam-Turbine Inlet Bearing |
| 修订日期：2000-04-18 |
| DOI： |
| 中文关键词: 汽轮机 前轴承 水平振动高 故障 |
| 英文关键词:steam turbine,horizontal vibration of inlet bearings,failure analysis |
| 基金项目: |
| 李波 朱明金 吴裕华 |
| [1]洪湾燃气轮机发电厂 [2]中国机械工业第一安装工程公司 |
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| 中文摘要: |
| 通过分析洪湾燃机发电厂３＃汽轮机前轴承水平振动高的故障原因，提出更换两个新的前轴承座标准尺寸纵销及更换一套好的前瓦，解决汽轮机前轴承水平振动高问题。 |
| 英文摘要: |
| s The No.3 steam turbine in Hong-Wan Gas Turbine Power Station in Zhuhai was manufactured by Alsthom, France. This steam turbine of Model TC363 FV140 has a rated power generation capacity of 34.1 MW and a rated speed of 3000 rpm. After the unit was put into operation in 1993, the horizontal vibration of the steam-turbine inlet bearing increased gradually to the alarm value, namely 6.25 mm/s, ca. every third year. In this presentation, reasons for the excessive horizontal vibration of the steam-turbine inlet bearing were analyzed. It was concluded that the gap between the up-bearing-metal of the inlet bearing and the shaft of the turbine was too large and the two longitudinal pins beneath the inlet bearing box were damaged seriously, which led to the excessive horizontal vibration of the inlet bearing. This problem was finally solved by replacing the original longitudinal pins and inlet bearing by two standard longitudinal pins and an appropriate inlet bearing. |
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