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介绍了龙头石电站大型混流式水轮机铸焊结构转轮下环改为厚钢板卷制的结构方案。新方案研制成功,解决了铸造下环订货困难,节约了制造成本,提高了空蚀性能。创造了大型混流式水轮机转轮制造的新方案。
This paper introduces the structural scheme that the casting ring structure of the large Francis turbine of cast-in-place Francis turbine at the Longtoushi Hydropower Station is changed to a thick steel plate rolling system. The successful development of the new program solved the ordering of the casting ring, saving manufacturing costs and improving cavitation performance. Created a large Francis turbine wheel new program.