Abstract：In order to meet the requirements for the rebuilding of a drainage pumping station,a model experimental research on characteristics of vertical axial-flow pump system has been conducted.The vertical axial-flow pump model is comprised of a hydraulic model of specific speed 700,an elbow inlet and a straight outlet conduit.Performance and cavity characteristics of the model pump and the prototype pump are obtained,so is the runaway speed characteristics.At-4? of impeller blades install angle,the maximum efficiency of the model pump is 76.21% with head 6.39m and flow rate 0.298 m3/s.The maximum efficiency of the prototype pump is 83.87% with head 6.00 m and flow rate 25.9 m3/s.At the maximum head,the shaft power of prototype pump is less than 2 300 kW.The hydraulic model and optimal straight outlet conduit meet the operating condition of the pumping station.
杨敬江. 排涝泵站立式轴流泵装置模型试验[J]. 排灌机械工程学报, 2008, 26(6): 20-23.
YANG Jing-jiang. Model experiment of vertical axial-flow pump system for drainage pumping station. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(6): 20-23.
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