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内消能工在船闸输水系统中的应用研究【作者】李君 【导师】张瑞凯; 宣国祥

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【作者】李君 【导师张瑞凯; 宣国祥
-DyNNu"T1r0[P [`0【作者基本信息】南京水利科学研究院,水力学及河流动力学,2007年,硕士

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F9} O"@yP,g0【中文摘要】 近年来为促进西部地区经济的发展,我国正大力发展西部内河航运事业,大批内河航运设施正在或即将建设。因而适应山区河流的高水头、超高水头船闸输水系统型式的选择、布置及其相关水力学问题等将成为今后通航水力学的研究重点。本文结合首次进行了内消能工在高水头船闸输水系统中的应用研究。提出了船闸输水系统设置内消能工的总体布置原则。在分析各种典型内消能工的消能原理和水力特性的基础上,确定了适合船闸输水消能特点的竖井式内消能工,并提出了设置竖井式内消能工船闸输水系统的具体布置型式及其主要控制尺寸的确定方法。在此基础上,依托世界单级水头第三位的乌江银盘船闸工程,对该船闸设置竖井式内消能工输水系统方案进行了布置。建立了设置竖井式内消能工船闸输水系统水力计算的数学模型,并进行了银盘船闸该布置方案的整体物理模型试验研究,详细分析了其水力特性,验证了数学模型的合理性和精确性。通过与该船闸常规输水系统模型试验成果的对比,分析了设置竖井式内消能工船闸输水系统的优缺点,并指出今后需进一步深入研究的问题。研究成果表明,竖井式内消能工的设置为输水阀门提供了稳定良好的工作条件,消耗了进入闸室前的大部分水流能量,大大改善了闸室内...更多的水流条件和船舶停泊条件,简化了闸室输水系统布置。设置竖井式内消能工的船闸输水系统能够较好地适应我国西部山区河流的特点,是高水头、超高水头船闸一种新型的输水系统布置型式,研究成果可供我国高水头船闸设计和建设参考和借鉴。  还原水利论文 Lr/j1@Vb3_u

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【英文摘要】 In recent years, China is vigorously developing western inland navigationto promote the economy of the western regions. A large number of inlandnavigation facilities are being or will be constructed. Thus the issues of thefilling and emptying system adjusting to high head or superhigh headnavigation lock on the mountain rivers such as type selection, layout and itsrelated hydraulics will become the research focus of the current and futurenavigation hydraulicsThe application of interior energy dissipater in the filling and emptingsystem of navigation lock is studied for the first time in this paper. The basiclayout principles of the interior energy dissipater in the navigation lock's fillingand empting system are indicated. On the basis of analyzing the dissipationprinciples and the hydraulic characteristics of various typical interior energydissipaters, the drop shaft interior energy dissipater is adopted, the specificform of the filling and empting system with drop shaft interior ener...更多gy dissipaterand the methods to determine its main controlling dimensions are studied. Onthese bases, the layout of this new filling and empting system is been put upfor the YinPan single-stage navigation lock on WuJiang River which has thethird high water head in the world. The mathematical models for the new fillingand empting system are been established, and the hydraulic characteristics ofthis new filling and empting system are been analyzed in detail by the physicalmodel experiments and the mathematical models, the mathematical modelsare also been validated to be enough reasonable and accurate. Comparingwith the test results of the same lock's conventional filling and empting system,the advantages and disadvantages of this new filling and empting system arebeen analyzed. And the in-deep research direction in future is been pointed outin the end of this paper.The research results indicate that the layout of the drop shaft intedorenergy dissipater provides a stable and sound working condition for the valves, and most of the water energy is dissipated before entering into the lockchamber. Therefore, the flow and berthing conditions in the chamber are wellameliorated, the layout of filling and emptying system in lock chamber can alsobe further simplified.The filling and emptying system with drop shaft interior energy dissipatercan better meets the characteristics of China's western mountain rivers, it is anew layout type of filling and emptying system for the high head and superhighhead navigation lock. The achievements in this paper can be used forreferences for the design and construction of the high head navigation locks inChina.  还原水利论文z+|8r fh/q!Cx'f#F"K)W

H#~;K*oT0【中文关键词】 内消能工; 船闸输水系统; 水力特性; 数学模型; 物理模型试验
~_WI4m0【英文关键词】 interior energy dissipater; filling and emptying system of navigation lock; hydraulic characteristic; mathematical model; physical model experiment水利论文3\Wg2X8v*}&_%C&X

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