摘要
根据低扬程水泵装置的研究方法可以多样化的观念,提出了将泵站进水流道模型从水泵装置模型中分离出来单独进行水力损失测试的新方法。介绍了该新方法所采用的测试装置、试验准则、水力损失计算方法及误差分析等有关问题。与传统测试方法相比,新方法具有费用少、周期短、测试准确等特点。采用新方法对2组不同几何形状的肘形进水流道模型进行了水力损失测试及比较,试验结果表明:肘形进水流道的水力损失与其几何形状有密切的关系。
Based on the theory of variety for researching a low head pump system, a new method to separate inlet conduit from pump system was put forward for measuring its hydraulic loss. Problems relative to the test device, test rule, losses calculation method and error analysis, etc. were illustrated in this paper. Compared with the traditional method, the new method has advantages of reducing expenses, shortening period and being more accurate. The new method was applied to measure the hydraulic losses of two groups of elbow inlet conduits, the geometry shape of which are different. The test results signify that the hydraulic losses of elbow conduit are relative closely to their geometry shapes.
出处
《排灌机械》
2005年第4期14-17,共4页
Drainage and Irrigation Machinery
关键词
泵站
进水流道
模型
水力损失
测试
Pumping station, Inlet conduit, Hydraulic loss, Measurement
作者简介
陆林广（1947-）,男,扬州大学水利学院教授。
