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我院农水系水泵站及水电站教研室,接受江苏省水利厅援外办公室,援助孟加拉国排灌站,实验任务,建成了国内外罕见的大比例(1:5)的正体模型实验泵站,见图一。本模型泵站考虑了水工建筑物与水力机械相结合,故在确定模型比λ_L=5时,同时满足了重力相似准则及惯性力相似准则。由于λ_L较大,因此水流现象的模拟具有较好的相似性。本模型泵站建筑面积为206平方米,安装10台6ZL—70轴流泵,单机流量为0.03秒立米,总流量为0.3秒立米,模型泵站为排灌结合型。
Our hospital water system pumping station and hydropower station teaching and research department, accepting Jiangsu Province Water Resources Agency foreign aid office, assisting Bangladesh irrigation and drainage station, experimental tasks, built a large proportion of domestic and international (1: 5) of the positive model experimental pumping station, . The pump station of this model considers the combination of hydraulic structures and hydraulic machines. Therefore, when the model ratio λ_L = 5 is determined, the similarity criterion of gravity and the similarity criterion of inertia force are satisfied at the same time. Due to the larger λ_L, the simulation of water flow has better similarity. The model pumping station construction area of 206 square meters, the installation of 10 sets of 6ZL-70 axial flow pump, stand-alone flow rate of 0.03 seconds of legislation, the total flow of 0.3 seconds legislation, the model pump station for irrigation and drainage.