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水轮机座环是水轮机流道的组成部件之一。座环的外形是否符合水流的流动规律,对水轮机的效率有较大的影响。传统的座环是带蝶形边的,从使用中证明,它是符合水流的流动规律,且为水力损失最小的结构。由于座环又是承受导水机构、轴承及蜗壳水压力的受力部件,在大型机组中,出现了座环应力过大的问题。从强度要求出发,经过受力分析以后,就
Turbine seat ring is one of the components of turbine runner. Seat ring shape is consistent with the law of the flow of water, the turbine efficiency has a greater impact. The traditional seat ring with a butterfly wing, from the use of proven, it is consistent with the flow of water flow, and the structure of the smallest hydraulic losses. As the seat ring is to withstand the hydraulic components of the water guide mechanism, bearings and volute force, in the large unit, there has been a problem of excessive stress on the seat ring. Starting from the strength requirements, after the force analysis, it