排灌机械工程学报2026，Vol.44Issue(6)：581-587,7.DOI:10.3969/j.issn.1674-8530.25.0092
喉管进口喇叭口型线对射流泵抽吸性能的影响
Effect of throat inlet flare profile on suction performance of jet pumps
摘要
Abstract
To improve the suction performance of a jet pump,the inlet flare profile of the throat inlet was optimized based on the centrifugal pump impeller flow channel design method.Three sets of com-parative schemes were constructed by controlling the smoothness of the curve of the flow channel cen-terline and the cross-sectional area variation curve.Numerical simulations were performed to compare the internal flow field,velocity distribution,pressure distribution and vorticity characteristics,to reveal the influence of the flow profile on the flow characteristics and energy loss inside the pump.An experi-mental test platform was built to verify the simulation results through field measurements.The results show that the optimized throat inlet flare profile can significantly improve the internal flow pattern inside the pump,reduce local flow losses and vortex dissipation,effectively lengthen the jet core region and expand the low-pressure zone,thereby enhancing the suction capacity.Scheme 2,with the smoo-thest cross-sectional area variation curve achieves the optimal performance,increasing the absorbed liquid flow rate by 16.16％compared to the prototype and by 15.78％in experimental measurements.The errors between simulation and experiment are less than 2％,verifying the accuracy of this proposed design method.The smoother the flow channel profile,the more effectively it can suppress flow separa-tion and reduce energy loss.The relevant conclusions can provide reliable methods and theoretical sup-port for the structural optimization and performance improvement of jet pumps.关键词
射流泵/数值模拟/喉管进口/型线设计/抽吸性能Key words
jet pumps/numerical simulation/throat inlet/profile design/suction performance分类
能源科技引用本文复制引用
赵顺超,李宁,于法浩,田文尧,夏宏泽,王通,喻小刚..喉管进口喇叭口型线对射流泵抽吸性能的影响[J].排灌机械工程学报,2026,44(6):581-587,7.基金项目
中国海洋石油集团公司海上稠油热采重点实验室主任基金(2025)(E-23257018) （2025）
