三峡电站水轮机是目前国内设计的单机容量和转轮直径都是最大的混流式水轮机,由于水头高和尺寸大,作为最重要的埋入部件的蜗壳和座环,其强度问题比较突出。为使它们具有足够的强度,保证机组的长期、安全、稳定运行,哈大电机所立题进行了科研分 Due to the high water head and large size, the turbine of the Three Gorges power station is the most commonly designed mixed flow turbine with single machine capacity and runner diameter. As the most important embedded part of the volute and seat ring, the strength problem is quite prominent. In order to make them have sufficient strength, to ensure the long-term, safe and stable operation, Harbin Electric made the subject of scientific research