摘要
用HLA835转轮替换HL220-WJ-71水轮机转轮后,必须在水轮机顶盖上装设压力平衡管来解决轴向水推力问题,除此之外不需变动任何其他部件即可使机组出力增加10%,大流量区效率提高2%,小流量区效率提高8%-10%;空化、飞逸特性也有所提高。
When the HLA835 runner replaces the HL220-WJ-71 hydraulic turbine runner, without changing any other components , the head cover of the horizontal turbine must be installed to solve the problem on the axial hydraulic thrust, the unit output power can be increased by 10%, the efficiency of the big discharge zone can be increased by 2%, and the small discharge zone can be improved by 8-10%. The character of cavitation and runaway speed is also improved.
出处
《中国农村水利水电》
北大核心
2008年第5期118-120,共3页
China Rural Water and Hydropower
基金
国家自然科学基金项目(50606015)
甘肃省自然科学基金项目(3ZS062-B25-32)和(3ZS042-B25-030)资助
关键词
混流卧式水轮机
增容改造
新型转轮
压力平衡管
horizontal Francis turbine
capacity-increasing improvement
new type runner
pressure balancing pipe
