通海截止阀冲刷腐蚀的数值模拟及优化  

Numerical simulation and optimization for erosion corrosion of the cut-off valve

作　　者：卢宇辉 卢锐新 刘少刚[2] 

机构地区：[1]大连理工大学运载工程与力学学部,辽宁大连116000 [2]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2016年第1期61-66,共6页Applied Science and Technology

基　　金：国防技术基础科研基金资助项目(Z192013B001)

摘　　要：为了对阀门的冲蚀速率及整体的冲蚀分布进行优化研究,采用ICEM CFD流体分析软件对型号为DN125的阀门及其改进模型内流场进行了数值模拟分析。通过对比结果表明,改进后模型阀芯处最大冲蚀速率下降了60%,平均冲蚀速率下降了67%。改进后的模型能够有效提高阀门的抗冲刷腐蚀特性,同时通过分析结果表明,改进后的模型冲蚀速率的减小与粒子速度的降低有关。In order to analyze and optimize the erosion rate and the erosion distribution of marine valves,the flow channel of valve DN125 and its optimized model were numerically simulated and analyzed by the ICEM CFD fluid dynamics analysis software. The results showed that the maximum erosion rate after optimization decreased by 60%and the average erosion rate decreased by 67%. The optimization model can increase the properties of coating resistant to erosion corrosion,and the results also show that decrease of the erosion rate of the optimization model is relative to the decline of the particle velocity.

关 键 词：通海阀 冲刷腐蚀 数值模拟 ICEM CFD 流道优化 

分 类 号：TH122[机械工程—机械设计及理论]