机械科学与技术2024，Vol.43Issue(8)：1359-1366,8.DOI:10.13433/j.cnki.1003-8728.20230052
叶轮与导叶宽度匹配参数对LNG泵压力脉动特性的影响研究
Effect of Matching Parameters Between Impeller and Guide Vane Width on Pressure Pulsation Characteristics of LNG Pump
韩传军 1李言希 1程华2
作者信息
- 1. 西南石油大学机电工程学院,成都 610500
- 2. 西南油气田公司集输工程技术研究所,成都 610213
- 折叠
摘要
Abstract
Based on CFD technology,the influence of the width matching design of impeller and guide vane on the pressure pulsation characteristics of LNG submersible pump is studied,and the width matching design is carried out.The multi working condition numerical simulation is carried out by using k-epsilon turbulence model,and the dimensionless parameter R(Impeller outlet width/Guide vane inlet width)is introduced to analyze the results.The external characteristics of the pump are analyzed and verified,and the pressure pulsation characteristics of LNG pump in time and frequency domain are obtained.The results show that the main frequency of pressure pulsation is the blade frequency of impeller,and the secondary frequency is its double frequency.The time domain peak is related to the relative position of the monitoring point.The closer to the interface,the greater the time domain peak.The pulsation amplitude first increases and then decreases with the pump width.关键词
压力脉动/LNG潜液泵/匹配设计/叶轮出口宽度/导叶进口宽度Key words
pressure pulsation/LNG submersible pump/matching design/impeller outlet width/guide vane inlet width分类
建筑与水利引用本文复制引用
韩传军,李言希,程华..叶轮与导叶宽度匹配参数对LNG泵压力脉动特性的影响研究[J].机械科学与技术,2024,43(8):1359-1366,8.
