国产200MW汽轮发电机组三油楔轴承和椭圆轴承稳定性的比较和分析

Stability Comparison of Three Wedge and Elliptical Bea-rings Used in Domestic 200MW Turbine-Generator Sets

阐述了轴承的稳定性判据。分析了国产200MW机组轴承的稳定性。介绍了国内外大机组轴承型式及其稳定性。对徐州电厂6号机组轴承改型前后的稳定性作了比较,指出,应使用稳定性较好的椭圆轴承。

The criterion for bearing stability is elucidated together with an analysis as regards to the relevant bearing of domestic 200MW units.A review of bearing types for large units in China and abroad as well as their stability is presented.A comparison of stability behavior before and after modification of bearings effected on unit No.6 at Xuzhou Power Station shows the suitability of using elliptical bearings because of their more favourable stability.