第49卷第4期2023年8月文章编号：1673-5196(2023)04-0061-07船用法兰铸钢截止阀流通特性分析和结构优化金维增*1，张力²，张希恒3（1.抚顺职业技术学院机械与电子工程系，辽宁抚顺113122；2.沈阳三三牌阀门制造有限责任公司，辽宁沈阳110179；3.兰州理工大学石油化工学院，甘肃兰州730050）摘要：以DN65船用法兰铸钢波纹管截止阀为例，应用Flow-Simulation软件对其在全开状态下进行流阻系数有限元分析，模拟流场特性，计算流阻系数和流量系数，并依据GB/T30832对其进行实验验证，二者结果相吻合，表明数值模拟计算和方法正确.根据流场云图发现，阀体是影响阀门流阻系数和流量系数的关键因素.分析阀体流道结构对介质流动影响的同时，在阀体结构长度不变的情况下优化阀体流道结构，降低两端压力损失，进而大幅度地降低船用法兰铸钢波纹管截止阀流阻系数，提高流通能力，并通过实验进一步验证，这对阀门的优化设计尤其对直通截止阀具有重要意义.关键词：截止阀；流通特性；流阻系数；流量系数；优化设计；数值模拟中图分类号：TH134AnalysisofflowcharacteristicsandstructureoptimizationofJINWei-zeng',ZHANGLi?,ZHANGXi-heng(1.DepartmentofMechanicalandElectronicEngineering,FushunVocationalTechnicalCollege,Fushun113122,China;2.ShenyangSan-sanBrandValveManufacturingCo.Ltd.,Shenyang1lo179,China;3.SchoolofPetrochemicalEngineering,LanzhouUniv.ofTech.,Lanzhou730050,China)Abstract:TakingDN65marineflangecaststeelbellowsglobevalveasanexample,thefiniteelementa-nalysisoftheflowresistancecoefficientinthefullyopenstatewascarriedoutusingFlow-Simulationsoft-ware,andtheflowresistancecoefficientandflowcoefficientwerethencalculated,followedbytheexperi-mentalverificationaccordingtotheGB/T30832standard.Theresultsshowthatthetworesultsarecon-sistent,demonstratingtheaccuracyofthenumericalsimulationandthemethod.Accordingtotheflowchart,itisfoundthatthebodyofthevalveisthekeyfactoraffectingtheflowresistancecoefficientandflowcoefficient.Then,theeffectofthebodyflowstructureonthemediumflowwasanalyzed.Mean-while,remainingthelengthofthevalvebodystructurewasunchanged,thestructureofthevalveportwasoptimized,andthepressurelossonbothendswasreduced,whichinturngreatlyreducethecut-offvalve...
