【作者】 吕锐捷；

【导师】 刘景植； 唐澍；

【作者基本信息】 武汉大学 ， 水利工程， 2004， 硕士

【摘要】 本文研讨了国内外远距离输送技术的发展现状，针对黄河下游远距离输沙存在的问题，对单泵输送5000m以上的远距离输沙技术进行了研究，并以系统的观点，提出了研制泥浆泵的设计参数和水力模型设计，找到了模型试验结果和研制的原型泵参数。 本文共分6个部分：第一部分为绪论，分别介绍了黄河下游概况及水沙治理情况，研究远距离输沙技术的必要性，现阶段黄河下游远距离输沙技术评介，国内外远距离输送技术水平概况及发展趋势，挖河清淤固堤远程输送技术研究方向，阐述了论文研究的主要内容、目标及技术经济分析；第二部分对泥浆泵设计参数进行了分析研究，确定了边界条件，对颗粒沉降末速进行了计算，对管道直径进行了校核，对管道中平均流速和淤积临界流速进行了计算，对管路沿程损失和总局部损失进行了计算，对相同流量下所需泵的清水扬程进行了计算，对泥浆泵配套功率进行了选择；第三部分为泥浆泵水力模型设计，确定了工况设计参数和泵的设计几何参数；第四部分为模型试验，介绍了泥浆泵水力模型试验结果，将泥浆泵模型换算至原型泵的性能；第五部分为机组设备配套及推广应用前景分析；第六部分为结语；最后是致谢和参考文献目录更多还原

【Abstract】 The thesis reviews the present situation of long-distance sediment transporting technology at home and abroad, studies the technology of long-distance sediment transporting over 5000 meters with one pump in view of the existing problem of long-distance sediment transporting in the lower reach of the YR, brings forward the design parameter of mud pump developing and hydropower model design, and finds the result of model experiment and the parameter of prototype model pump.The thesis consists of six chapters. In Chapter 1, the survey of the lower reach and water and sediment training, the necessity of studying long-distance sediment transporting technology, the presentation of the long-distance sediment transporting technology of the lower reach of the YR these days, the overview and development trend of the world’ s long-distance sediment transporting technology, the research on the long-distance transporting in dredging to strengthen the embankment, the main content, objectives and economic analysis of the technique of the research are presented. In Chapter 2, the design parameter of mud pump is analyzed. The boundary condition is confirmed. The diameter of the pipeline is checked and the lowest speed of particles settling, the average flow velocity and the critical velocity of deposition in the pipeline, the linear loss and the total local loss of the pipeline, the delivery lift of the pump under the same flow are calculated. The corollary power of the mud pump is selected. Chapter 3 is the hydropower model design of mud pump. The design parameter of the work condition and the geometrical parameter of the design of the pump are confirmed. Chapter 4 is the model experiment. The result of the hydropower model experiment of mud pump and the capability of prototype model pump converted from mud pump model is presented. In Chapter 5, the corollary of the unit equipment and the foreground of its extending and applying are analyzed. Chapter 6 is the conclusion, followed by acknowledgements and references.更多还原