流体机械2025，Vol.53Issue(10)：1-9,9.DOI:10.3969/j.issn.1005-0329.2025.10.001
高速气液混输增压泵设计及可视化测试研究
Design and visualization testing study of high-speed gas-liquid multiphase booster pump
摘要
Abstract
To address the performance failure of conventional centrifugal pumps under high gas content multiphase transportation conditions,a high-speed gas-liquid multiphase booster pump covering conventional centrifugal pump performance parameters was designed.Maintaining bubbly inflow and through visualization testing,its performance and internal flow characteristics under variable conditions were analyzed.The results show that the pump can transport mixed medium with inlet gas volume fraction of 55%under rated conditions;as inlet gas volume fraction increases,the pump head coefficient shows a nonlinear decreasing trend,and the inlet flow pattern gradually transitions from bubbly flow Ⅰ to bubbly flow Ⅱ,Ⅲ,Ⅳ.When the flow pattern develops to bubbly flow Ⅲ,the pump performance loss and inlet flow pattern transition delay reach their maximum;increasing rotational speed can achieve up to 6.65%maximum inlet flow pattern transition delay rate and enhance the pump's gas mixing resistance capability;small liquid flow rate helps slow down performance degradation under high inlet gas volume fraction conditions,while increasing liquid flow rate intensifies gas-liquid separation inside the pump;reducing liquid flow rate can achieve up to 7.04%maximum inlet flow pattern transition delay rate.This research provides theoretical support for the optimal design and efficient operation of gas-liquid multiphase booster pumps.关键词
气液混输增压泵/进口气体体积分数/入口流型转变/气泡演化/可视化测试Key words
gas-liquid multiphase booster pump/inlet gas volume fraction/inlet flow pattern transition/bubble evolution/visualization testing分类
机械制造引用本文复制引用
董栋,李晓俊,虞瑞荣,谢功耋,李晓多,叶张益..高速气液混输增压泵设计及可视化测试研究[J].流体机械,2025,53(10):1-9,9.基金项目
国家自然科学基金重点项目(U24A20139) （U24A20139）
浙江省自然科学基金杰青延续项目(LRG25E090001) （LRG25E090001）
浙江理工大学基础研究项目(25052136-Y) （25052136-Y）
