【作者】 潘钦； 刘亚坤； 倪汉根； 杨涛；

【Author】 PAN Qin LIU Ya-kun NI Han-gen YANG Tao (1.School of civil and hydraulic engineering,Dalian Unversity of Technology,Dalian 116024,China)

【机构】 大连理工大学土木水利学院；

【摘要】 结合大伙房输水工程稳压溢流塔进行水工模型试验,通过在适当位置设置进气孔,在竖直溢流段设置消能孔板,在出口处加排气阀及出流孔板,研究了7个溢流塔方案,并对各方案在不同工况下的水力特性进行了研究,找到一个消能效果好,塔内溢流段负压绝对值小,管内流态稳定的最优方案,并分别给出了自由出流与淹没出流时, 管路压强与溢流量的关系函数,并已应用于工程实践。更多还原

【Abstract】 In this paper,we propose a new type of overflow tower named double-pipe overflow tower in which flow pattern is very complicated and the demand to it in every aspect is rather high.By combining Dahuofang water conveyance project with model experiments,this paper researches seven different pressure-static overflow tower projects under the condition that changing exiting,dissipation of energy and flow conditions in turn and finally finds the best project which has been applied in practice after analyzing hydraulic characteristics of different project under different project status.At last,function relation between overflow quantity and pressure in pipelines are given,respectively.更多还原