| 水力机械止漏密封的试验研究及其改进 |
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| 引用本文： | 陈秉二,彭国义.水力机械止漏密封的试验研究及其改进[J].兰州理工大学学报,1989(1). |
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| 作者姓名： | 陈秉二 彭国义 |
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| 作者单位： | 甘肃工业大学机械工程二系
(陈秉二)，甘肃工业大学机械工程二系(彭国义) |
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| 摘 要： | 本文针对水泵叶轮、混流式水轮机转轮止漏密封的磨损和汽蚀破坏情况,对圆柱面间隙式密封、迷宫式密封和反螺旋式密封间隙的压力分布及其泄漏量变化规律进行了模拟试验研究。结果表明:用新设计的反螺旋式密封代替传统的迷宫式密封,可以减轻止漏密封磨蚀破坏,延长水泵和水轮机使用寿命,提高水力机械的容积效率。
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| 关 键 词： | 水轮机 水泵 密封 磨损和汽蚀 泄漏量 |
An Experimental Investigation in Runner Sealing Ring of Hydraulic Machine and An Improvement on It |
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| Chen Binger,Peng Guoyi.An Experimental Investigation in Runner Sealing Ring of Hydraulic Machine and An Improvement on It[J].Journal of Lanzhou University of Technology,1989(1). |
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| Authors: | Chen Binger Peng Guoyi |
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| Institution: | Second Department of Mechanical Engineering |
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| Abstract: | The pressure distribution in the clearances of cylinder-type gap seal, labyrinth-type seal, and inverse-spiral seal as well as the variation patterns of leakage through these clearances are investigated by simulating test in this paper for reducing the wear and cavitation damage of runner sealing ring of water pump and francis turbine. The result obtained shows that it is an effective way of reducing the wear and cavitation damage of sealing ring and improving the volumetric effeciency of water pump and turbine to replace traditional labyrinth-type seal with new designed inverse-spiral seal. |
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| Keywords: | water turbine pump seal wear and cavitation leakage |
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