水利学报2017，Vol.48Issue(9)：1098-1106,9.DOI:10.13243/j.cnki.slxb.20161212
水锤泵内部流道优化及性能研究
Flow passage optimization and performance study of the hydraulic ram pump
摘要
Abstract
The hydraulic ram pump,an automatic water-pumping device without any external energy input like electricity or oil,can be widely used in mountainous and rural areas short of power.To solve the issues of unavailable flow passage analysis,long development period and poor performance encountered with traditional means,evaluation indexes,including head loss coefficients,drag coefficients,eccentric distance of pressure on the waste valve and velocity uniformity of the outlet,were proposed as well as numerical models.Nunerical models were established and compared with the front-expansion and back-expansion flow passage.The head loss coefficients are 4.51 and 3.72 respectively.The drag coefficients are 4.11 and 2.23,the eccentric distances of pressure on the waste valve are 0.21mm and 2.02mm and the velocity uniformity of the outlet are 47.8％ and 69.2％.The back-expansion flow passage has lower head loss coefficient and drag coefficient,larger eccentric distance of pressure and higher velocity uniformity of the outlet than those of the former one.Therefore,the back-expansion flow passage was adopted in the novel hydraulic ram pump.Through numerous experiments of variable supply and delivery heads,the formula for the delivery flow was built and the inflow required was given.关键词
水锤泵/流道/评价指标/数值模型/模型试验Key words
hydraulic ram pump/flow passage/evaluation index/numerical model/model experiment分类
建筑与水利引用本文复制引用
李甲振,郭新蕾,杨开林,郭永鑫,黄伟,曹庆皎..水锤泵内部流道优化及性能研究[J].水利学报,2017,48(9):1098-1106,9.基金项目
国家重点研发计划课题(2016YFC0401808) （2016YFC0401808）
国家自然科学基金项目(51609265) （51609265）
国家十二五科技支撑计划(2015BAD24B02) （2015BAD24B02）
中国水科院科研专项(HY01458B802017) （HY01458B802017）
