Analysis and treatment of elastic shaft-disc thrust bearing burn-out accident of pump-turbines
Analysis and treatment of elastic shaft-disc thrust bearing burn-out accident of pump-turbines
复制标题
DOI：
--
复制
发表时间：
2007
影响因子：
--
通讯作者：
Cheng Yun-shan
中科院分区：
文献类型：
--
作者：
Cheng Yun-shan
分析了某抽水蓄能电站弹性轴盘止推轴承烧坏的原因。提出了改进推力轴承结构设计、采用抗变形轴瓦磨削技术消除轴瓦表面热变形的影响、修正油槽、采用合理的轴瓦磨削技术控制因径向偏心过大引起的轴向轴瓦变形、增加冷却器容量、拆除刮油板、提高喷嘴管等对策。通过采取这些对策，机组实现了稳定运行。
The causes of burn-out of the elastic shaft-disc thrust bearing in a pumped storage power station were analyzed.Some countermeasures were put forward as follows: to improve the thrust bearing structure design,to eliminate the influence of thermal deformation of bushing surface by adoption of anti-deformation bearing shoe grinding technique,to amend the oil groove,to employ rational bearing shoe grinding technique to control the axial bushing deformation induced by large radial eccentricity,to increase the cooler capacity,to remove oil scraper,and to raise nozzle tube.The units realized stable operation by adoption of such countermeasures.