磁性丁腈橡胶在贯流式水轮机转轮轮毂密封中的应用  

Magnetic nitrile rubber used as hub seal material of tubular turbine runners

作　　者：李正贵[1] 程杰[1] 刘小兵[1] 杨逢瑜[1,2] 陈君辉 司国雷 黄玥[1] 罗安妮[1] LI Zhenggui CHENG Jie LIU Xiaobing YANG Fengyu CHEN Junhui SI Guolei HUANG Yue LUO Anni(Key Laboratory of fluid and power engineering, Ministry of education, Xihua University, Chengdu 610039 Research Institute of Magnetic Physics and Magnetic Technology, Lanzhou University of Technology, Lanzhou 730050 Research and Development Center Fenghuo Machinery Factory, Chengdu, 611130)

机构地区：[1]西华大学流体与动力工程教育部重点实验室,成都610039 [2]兰州理工大学磁性物理与磁技术研究所,兰州730006 [3]烽火机械厂设计中心,成都611130

出　　处：《水力发电学报》2017年第1期69-74,共6页Journal of Hydroelectric Engineering

基　　金：西华大学自然科学基金(Z1510416)

摘　　要：针对贯流式水轮机转轮轮毂密封失效而引起泄露的问题,本文对磁性丁腈橡胶密封材料的受压、摩损和磁性进行分析,并利用UTM磨损试验机对磁性丁腈橡胶进行试验,验证了磁性丁腈橡胶密封的泄露量和磨损消耗远低于普通密封材料。将磁性丁腈橡胶应用于黄河柴家峡水电站贯流式水轮机转轮轮毂的设计,电站实际运行监测表明,磁性丁腈橡胶的密封效果十分明显,具有良好的密封耐磨性能。研究成果为水轮机密封行业提供了新的研究材料。To explore the leak problem caused by failure in the hub seal of tubular turbine runners, we have analyzed material compression, abrasion and magnetic properties of magnetic nitrile rubber seals and conducted experimental wear tests on this material using a Universal Test Machine. The results verified that both water leakage from this type of seal and its wear consumption are far lower than those of conventional rubber seal materials. Practical application to tubular turbine runners also shows that magnetic nitrile rubber seals have an obviously better effect in water sealing and wear resistance. Thus it would provide a new material for turbine sealing industry.

关 键 词：贯流式水轮机转轮 磁性丁腈橡胶 实验研究 应用效果 

分 类 号：TK733.8[交通运输工程—轮机工程]