核电汽轮机轴承温度高治理

Analysis and the Adopted Measures of Nuclear Turbine Bearings' High Temperature

针对岭澳核电站百万千瓦核电汽轮机轴承及其它机组的同类型轴承温度高的共性问题,首先建立轴承温度和轴承标高变化对轴承温度影响的计算程序,将其计算结果与制造厂的计算数据进行比对,用来验证是否存在设计问题和分析评价轴承实际运行温度是否过高,进而结合计算结果、轴承的结构特点、检修数据和运行参数,分析阐述了百万千瓦核电汽轮机部分轴承温度高的原因,提出了相应的处理措施,并在检修中实施后取得了良好效果,为处理同类型问题提供了有借鉴意义的新方法。

To solve the common problem of Ling Ao nuclear power station, 1000MW nuclear turbines and other fleets＇similar bearings high temperature, the program to calculate the beating temperature and beating temperature variation based on the bearings elevation variation is firstly established, then comparing its results with design data to verifying if it belongs to design problem and assess the actual bearings operating temperatures is acceptable or not . Based on the above calculated results, beating structure characters, maintenance figures and fleets operating parameters etc, the root causes are analysed and explained, the relative solving measures are also advised, and the expected result was achieved after the relative solving measures were implemented. This process can be cited to solve other similar problems.