Experimental study on pump discharge measurement for large-scale and low-lift pumping station by using ultrasonic flowmeter
Zhou Jiren1,2,Yang Hua2,Cheng Li2,Tang Fangping2
(1.College of Water Resource and Hydropower Engineering,Hohai University,Nanjing,Jiangsu 210098,China;2.College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou,Jiangsu 225009,China)
Abstract:Because of the complex cross-section and flow pattern in the inlet passage of the large-scale and low-lift pumping station,it is difficult to select the reasonable section for discharge measurement.In this paper,we propose to determine the transducer installation section for ultrasonic flowmeter and to optimize the pairs of installed transducers through 3-dimensional turbulent numerical simulation of the inlet passage.Combined with pump system model test for Baoying pumping station of East Route of South-to-North Water Diversion Project,two ultrasonic flowmeters are compared with discharge testing equipment of high accuracy for hydraulic machinery.The results show that the two ultrasonic flowmeters have high precision and stability,their maximal relative errors are 1.60% and 0.39% respectively.So,these two ultrasonic flowmeters can be used to improve the precision of pump discharge measurement,which can satisfy the precision requirements in site test.
周济人, 杨华, 成立, 汤方平. 超声波流量计测试大型低扬程泵站流量的模型试验[J]. 排灌机械工程学报, 2009, 27(1): 51-54.
Zhou Jiren,Yang Hua,Cheng Li,Tang Fangping. Experimental study on pump discharge measurement for large-scale and low-lift pumping station by using ultrasonic flowmeter. Journal of Drainage and Irrigation Machinery Engin, 2009, 27(1): 51-54.
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