液压与气动2025，Vol.49Issue(4)：31-38,8.DOI:10.11832/j.issn.1000-4858.2025.04.004
深海小排量高速柱塞泵搅油损失分析
Analysis of Churning Loss of the Small Displacement High-speed Piston Pump in Deep Sea
摘要
Abstract
Small displacement high-speed piston pumps have the advantages of high working pressure and high power density,and are the core power components of deep-sea equipment.Unlike ground conditions,in the low-temperature and high-pressure environment of deep sea,the viscosity of oil increases significantly,leading to prominent problems of churning loss in high-speed rotating components inside the pump.Based on the analysis of the churning flow field in the cylinder block,a mathematical model of pump churning loss under deep-sea oil rheology was established,and the influence of sea depth and speed on pump churning loss was analyzed.The results showed that the churning loss of the pump varied in three stages at different speeds.Among the churning loss distribution of various components(bearings,cylinder block,gears,piston connecting rods)inside the pump,the bearing churning flow field contributed the most,followed by the cylinder block churning flow field,and the other parts had a smaller impact.Based on this,the pump support bearing structure was improved,and the total churning loss of the pump was reduced by about 11%.关键词
深海环境/高速柱塞泵/油液流变/搅油损失Key words
deep sea environment/high-speed piston pump/oil rheology/churning loss分类
机械工程引用本文复制引用
闫有朋,李跃,李东林,赵中校,郭富航..深海小排量高速柱塞泵搅油损失分析[J].液压与气动,2025,49(4):31-38,8.基金项目
国家重点研发计划(2022YFC2805702) （2022YFC2805702）
国家自然科学基金(52475053) （52475053）
