在水轮机制造业中,转轮是水轮机最重要的部件之一,形状复杂,要求甚高。众所周知,设计机组时,水力性能是按模型试验确定的。为了确保真机的水力性能,必须使模型与真机几何相似,这就要求一定的精度。确定允许偏差时,要考虑到提高精度会 In the turbine manufacturing industry, the runner is one of the most important components of a turbine. The shape is complex and demanding. As we all know, when designing the unit, the hydraulic performance is determined by the model test. In order to ensure the real machine’s hydraulic performance, the model must be geometrically similar to the real machine, which requires a certain degree of precision. To determine the allowable deviation, take into account the accuracy will increase