水轮机转轮下环由厚钢板卷焊替代铸件的成功经验

The successful experience of thick steel plates to replace casting of hydraulic turbine runner lower ring

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 article introduced the organization plan of the Longtoushi power plant large-scale interflow type hydraulic turbine cast-weld structure runner lower ring changes to the steel plate. The successful development of the new plan solved the casting lower ring ordering difficulty, saved the production cost, enhanced the cavitations erosion performance, and created the new plan for the large-scale interflow type hydraulic turbine runner.