海水泵球型配流阀冲蚀磨损的数值模拟研究  

Numerical Simulation of the Particle Erosion for Seawater Pump Ball Check Valve

作　　者：赵基宏 刘新强[1] ZHAO Ji-hong;LIU Xin-qiang(College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050

出　　处：《液压气动与密封》2022年第1期23-26,29,共5页Hydraulics Pneumatics & Seals

基　　金：国家自然科学基金(52005234)。

摘　　要：海水中存在大量污染物,其中悬沙颗粒会对海水液压元件造成不同程度的冲蚀磨损;配流阀的冲蚀磨损会降低海水泵的容积效率,使用离散项模型对水介质下悬沙颗粒对海水泵配流阀的冲蚀磨损现象进行数值模拟计算,研究阀口开度与入口流速对球型配流阀阀芯及阀座冲蚀磨损的影响。结果表明:不同阀口开度下阀座表面的冲蚀位置有明显差异,而阀芯表面冲蚀磨损位置几乎一致,阀芯及阀座的冲蚀率均随阀口开度的增大而减小;不同入口流速对与阀芯表面的冲蚀率影响更为显著。There are a lot of pollutants in the seawater,among which the suspended sand particles will cause particle erosion on the seawater hydraulic components.The particle erosion in check valve will reduce the volumetric efficiency of the sea water pump.The discrete particle model was used to simulate the particle erosion of the check valve of the sea water pump by suspended sand particles,and the influence of the valve opening and inlet velocity on the particle erosion of the valve core and seat of the ball check valve.The results show that the particle erosion positions of the check valve seat surface are obviously different with different orifice openings,while the erosion positions of the valve core surface are almost the same.The erosion rates of both the valve core and the valve seat increase with the increase of orifice openings.The influence of different inlet velocity on the erosion rate of the valve core surface is more significant.

关 键 词：海水泵 配流阀 冲蚀磨损 数值模拟 

分 类 号：TH137[机械工程—机械制造及自动化]