排灌机械工程学报2017，Vol.35Issue(1)：32-41,10.DOI:10.3969/j.issn.1674-8530.15.0217
南水北调东线一期工程灯泡贯流泵性能分析
Performance analysis of bulb tubular pumps in the first phase of South-to-North Water Diversion Eastern Route Project in China
摘要
Abstract
Bulb tubular pumps have been installed in six pumping stations in the first phase of the South-to-North Water Diversion Eastern Route Project in China.For the difference in their structure, there exist differences in their performances.Experimental results of the model pumping systems are analyzed firstly,the methodologies and measures for optimal hydraulic design are introduced.Accor-ding to the results in acceptance model tests conducted,the pump performances are superior to the gua-ranteed ones in the contracts.By using dimensionless head,flow rate coefficients and suction specific speed,a comparison of hydraulic performance among six pumping systems in the same pump model is carried out.The results show that the dimensionless head-flow rate curves are basically identical for six pumps,and their best efficiency is all as high as above 80%,demonstrating an excellent performance even these bulb tubular pumps are subject to different structures.In the light of the measured perfor-mance data on site,it is confirmed further that these bulb tubular pumps do have excellent performance and better operational stability,and the performance data are better than the predictions by making use of model test.The bulb tubular pump is suitable for low head pumping stations in the South-to-North Water Diversion Project in China.关键词
南水北调/灯泡贯流泵/性能/效率/模型装置Key words
South-to-North Water Diversion Project/bulb tubular pump/performance/efficiency/model system分类
农业科技引用本文复制引用
张仁田,朱红耕,卜舸,单海春,周伟,姚林碧..南水北调东线一期工程灯泡贯流泵性能分析[J].排灌机械工程学报,2017,35(1):32-41,10.基金项目
“十二五”国家科技支撑计划项目（2015BAB07B01）；江苏省水利科技指导性项目 （）
