last stage blades

Water erosion occurs frequently at the last stage blades of saturated steam turbine in PWR power plant. The erosion in blades would induce unexpected transient during plant operation, threatening the safety and economy of plant.
压水堆核电站所采用汽轮机为饱和蒸汽型汽轮机,其低压缸末级叶片很容易发生水蚀,如果叶片出现问题导致故障会给核反应堆运行造成运行瞬态事件,因此对核电站安全性、经济性都有着严重威胁。