摘要
根据我国水力资源特点，分析总结了我国大型混流式水轮机技术的应用需求和应用现状，以及大型混流式水轮机技术的发展趋势，并分析提出了当今国内外混流式水轮机的技术发展水平。混流式水轮机模型的最优效率已从20世纪80年代的92％～93％到90年代的93％-94％，提高到现阶段94％～95％的水平，部分水头段已超过95％，空化性能和水力稳定性较过去有了相当大的改善。
Based on the characteristics of hydraulic resources in China, the demand and present status of the application of the technique of large Francis turbine are analyzed and summarized herein with the discussion on the development trend concerned, and then the technical developing level of the turbine at home and abroad is analyzed and presented as well. The optimal efficiency of the turbine is enhanced from 92% -93% during the 80 years to 93% -94% during the 90 years of the past century, and then to 94% - 95% at present, even exceeded over 95 % for part of the range of water head along with a considerable improvement of both the cavitation properties and hydraulic stabilities.
出处
《水利水电技术》
CSCD
北大核心
2009年第8期108-112,共5页
Water Resources and Hydropower Engineering
关键词
大型混流式水轮机
水力性能
应用现状
技术发展
large Francis turbine
hydraulic property
present status of application
technical development
