摘要
水轮机轴部应用磁性液体密封时,存在密封转速低、不稳定等现象,密封液体流场特性对密封失效有重大影响.基于数值计算的方法,对比了磁性液体动、静密封时密封液体的流场特性,并进行了实验验证.结果表明,密封压力对密封液体流场影响较小,轴转速对密封液体流场影响较大.该结论可为设计水轮机主轴的磁性液体密封装置提供理论指导.
When the magnetic liquid is applied to seal the shaft of hydraulic turbine, the sealing speed is low and unstable, and the characteristics of sealing liquid flow field have a great influence on the sealing failure. Based on the numerical calculation method, the flow field characteristics of the magnetic liquid seal are compared and verified by the experiments. The results show that the sealing pressure has little influence on the sealing liquid flow field, while the shaft speed has a great influence on the sealing liquid flow field. The conclusion provides theoretical guidance for the design of magnetic liquid sealing device for hydraulic turbine spindle.
作者
秦杏尧
李望旭
李正贵
黎义斌
颜招强
QIN Xing-yao;LI Wang-xu;LI Zheng-gui;LI Yi-bin;YAN Zhao-qiang(Shandong Hualu Hengsheng Chemical Co.Ltd.,Dezhou 253024,China;Key Laboratory of Fluid and Power Machinery,Ministry of Education(Xihua University),Chengdu 610039,China;Zigong Zhaoqiang Sealing Products Industrial Co.Ltd.,Zigong 643000,China;School of Energy and Power Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China)
出处
《兰州理工大学学报》
CAS
北大核心
2022年第6期63-66,共4页
Journal of Lanzhou University of Technology
基金
国家自然科学基金(52079118)
四川省科技厅项目(2020YFH0135)。
作者简介
通讯作者:李正贵(1974-),男,甘肃兰州人,教授.Email:lzhgui@mail.xhu.edu.cn。
