【摘要】 对清河电厂 2 0 0MW汽轮机末级叶片断裂原因进行分析 ,同时通过疲劳裂纹扩展试验及力学分析估算了形成 0 8mm初始裂纹源的剩余寿命约为 12 75h。该结果对汽轮机末级叶片的运行、监测及维修时间的修订提供了重要依据更多还原

【Abstract】 The breakage causes of last stage blades are analysed for 200 MW turbine of Qinghe Power Plant.Meantime,through the test of fatique break extension and the mechanics analysis,it was estimated that,the residue life forming 0 8 mm initial break source will be about 1 275 h.This result provides a important basis of operation,monitoring and amending the time of maintenance for the last stage blades of turbine.更多还原