| 水力式升船机泄水阀门掺气减蚀措施 |
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| 引用本文： | 郭 超,胡亚安,严秀俊,王 蛟,李学义.水力式升船机泄水阀门掺气减蚀措施[J].水运工程,2017(9):26-30. |
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| 作者姓名： | 郭 超 胡亚安 严秀俊 王 蛟 李学义 |
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| 作者单位： | 南京水利科学研究院,江苏 南京 210029,南京水利科学研究院,江苏 南京 210029,南京水利科学研究院,江苏 南京 210029,南京水利科学研究院,江苏 南京 210029;河海大学 水利水电学院，江苏 南京 210098,南京水利科学研究院,江苏 南京 210029 |
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| 基金项目： | 国家重点研发计划项目（2016YFC0402001） |
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| 摘 要： | 针对某水力式升船机调试阶段出现的输水阀门空化和振动问题,通过比尺为1∶10.667的阀门段常压及减压恒定流水力学物理模型,对水力式升船机高水头泄水阀门流量系数、阀后空化形态及特性进行了研究,在此基础上提出掺气减免泄水阀门段空化的工程措施。通过减压试验验证每只阀门掺气量0.1 m~3/s后,阀门段空化噪声基本消除、振动下降明显,掺气措施减免和抑制空化效果显著。
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| 关 键 词： | 水力式升船机 活塞式流量调节阀 空化特性 掺气减蚀 |
Air entrainment measures to alleviate cavitation of hydro-floating ship lift valves |
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| GUO Chao,HU Ya-an,YAN Xiu-jun,WANG Jiao and LI Xue-yi.Air entrainment measures to alleviate cavitation of hydro-floating ship lift valves[J].Port & Waterway Engineering,2017(9):26-30. |
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| Authors: | GUO Chao HU Ya-an YAN Xiu-jun WANG Jiao and LI Xue-yi |
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| Institution: | Nanjing Hydraulic Research Institute,Nanjing 210029,China,Nanjing Hydraulic Research Institute,Nanjing 210029,China,Nanjing Hydraulic Research Institute,Nanjing 210029,China,Nanjing Hydraulic Research Institute,Nanjing 210029,China;College of Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China and Nanjing Hydraulic Research Institute,Nanjing 210029,China |
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| Abstract: | To solve the problems of plunger valve cavitation and vibration of hydraulic ship lift,with a model scaled 1:10.667 physical,the flow coefficient,cavitation morphology,critical cavitation number of the high water head plunger valve are researched.For alleviating cavitation,air entrainment measures are put forward.The valve decompression model test verifies that:the valve segment cavitation is basically eliminated and vibration is declined obviously when each valve is entrained air with a mount of 0.1 m3/s .The effect of air entrainment measures to alleviate cavitation is significant. |
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