1.Technical and Research Center of Fluid Machinary Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Jiangsu Surveying and Design Institute of Water Resources Co.Ltd., Yangzhou, Jiangsu 225009, China; 3.Jiangsu Water Resources Co.Ltd.of South-to-North Water Transfers Eastern Route Project, Nanjing, Jiangsu 210029, China
Abstract：According to the pump requirements of middle and low delivery lift and large flow capacity for the first-stage construction in South-to-North Water Transfers Eastern Route Project,and the actual pump characteristics in Jinhu Pump Station,a hydraulic model and its pilot-plant unit for the cross-flow pump were built.The flow field was calculated and analyzed by computational fluid dynamics(CFD) with FLUENT code,and the hydraulic model was optimized by repeated trials in the pilot cross-flow pump.The simulating results calculated by the hydraulic model(named JGZM-3) coincided with the actual results from the pretest in Jiangsu University and the retest in Hohai University.The testing parameters from the pilot cross-flow pump were as follows: delivery lift 2.82 m,flow capacity 342 L/s,power efficiency 79.05%,and cavitation specific speed 1 105.The pilot pump has the characters of large flow capacity and high power efficiency;and its overall performance indexes reach the advanced level,as the foreign made products.Compared with a like vertical axial-flow pump, the pilot cross-flow pump raised the power efficiency over 5% and flow capacity over 10%.
关醒凡；商明华；谢卫东；冯旭松. 后置灯泡式贯流泵装置水力模型[J]. 排灌机械工程学报, 2008, 26(1): 25-28.
GUAN Xing-fan, SHANG Ming-hua, XIE Wei-dong, FENG Xu-song. Hydraulic model and its pilot-plant unit for rear bulb-type cross-flow pump. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(1): 25-28.
