灯泡混流式水轮机的研究与设计

Research and Design of the Bulb-Francis Turbine

本文将混流式水轮机的转轮应用于灯泡式机组中 ,介绍了这种灯泡混流式水轮机的基本原理、水力性能、水流运动规律及其过流部件的水力设计理论 ,并提出了这种水轮机的结构设计方法。通过分析研究 ,这种新型水轮机具有混流式水轮机和贯流式水轮机的优点 ,而避免了它们的缺点 ,可以在较宽的应用水头范围内替代现代应用最广的混流式水轮机 。

Runner of the Francis turbine is applied to bulb turbine in this work.Therefore,the basic prinˉciple,hydraulic performance,flow motion law and hydraulic design theory of flow parts of this bulb_Francis turbine are introduced,and the structure design method is put forward.And through analysis and research,it is found that this new type of turbine has advantages of the Francis and Straflo turbine,avoiding their disˉadvantages.Consequently,it can replace the most widely_used modern Francis turbine within wider applicable head range and can be widely used in small and medium_sized hydraulic power station.