应用投影分析法进行水轮发电机组轴线调整

Application of the Projection Analysis Method to Readjustment of Axis of a Turbo-generator Unit

结合龙滩水电站3号机组轴线调整的实践,分别将水轮机轴、发电机下端轴的垂直度和法兰水平值投影在一个平面上,应用投影的方法分析计算,找到最佳连轴方位,使下端轴与水机轴连接法兰处折线最小,保证机组轴线最优。

According to the practice of readjusting the axis of No. 3 generating unit of Longtan hydropower plant, the best shaft connection position can be found by respectively projecting the shaft of water turbine, the generator＇ s lower - end shaft verticality and flange level on a plane and using the projection method to conduct analysis and calculation so that the broken line at the flange connecting the lower - end shaft with the turbine shaft could be minimal and the axis of the generating unit could be optimum