热力仿真在RH真空槽设计分析中的应用.pdf

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1、2014年6月炼钢Jun．2014·50·第30卷第3期SteelmakingVo1．3()No．3热力仿真在RH真空槽设计分析中的应用刘向东，王翔，宋朝省，高瞻，行开新。(1．重庆赛迪冶炼装备系统集成工程技术研究中心有限公司，重庆401122；2．中冶赛迪工程技术股份有限公司，重庆400013)摘要：采用SolidWorksSimulation热力仿真模块对RH真空槽离线加热至1300℃后吊运至工作位安装的新工艺进行设计分析。建立真空槽壳体及耐材的有限元模型，分析以1300℃预热真空槽2()、96h以及预热至稳态共3种初始工况下再自然冷却30

2、min过程中真空槽的温降特性。结果表明，预热20h条件下，耐材蓄热不足，30min自然冷却后真空槽上部耐材内壁不足800℃，不能满足生产需要；真空槽预热96h以及预热至稳态条件下，30min自然冷却后真空槽内各区域温度均高于800℃，满足生产需要，且预热96h并吊运安装30min后真空槽外壳表面温度的仿真计算值与现场实测值基本一致。考虑到经济性，生产中应采用预热96h的方案。关键词：设计分析；热力仿真；RH；真空槽中图分类号：T／3472文献标识码：A文章编号：1002—1043(2014)03—0050-04Applicationofther

3、malsimulationondesignandanalysisofRHvacutlllltankLIUXiangdong，WANGXiang，SONGChaosheng，GAOZhan，XINGKaixin2(1．CISDIR&DCo．，Ltd．，Chongqing401122，China；2．CISDIEngineeringCo．，Ltd．，Chongqing400013，China)Abstract：Inthispaper，thedesignandanalysisofanewprocesstechnologywhichwaslifting

4、thevacuumtanktotheworkpositionwithaoriginaltemperature1300℃byoff-lineheatingwasperformedusingthethermalsimulationmoduleofSolidWorksSimulation．Thefiniteelementmodelofthevacuumtankincludingtheshellandrefractoryliningwasestablished．Threetypesofboundaryconditions，inwhichthevacuu

5、mtankwerepreheatedto1300℃for96htransiently。for20htransientlyandpreheatedtOthesteadystate。wereconsideredintheperformedsimulations．Then，thevacuumtankwaslefttocoolnaturallyin30min．Finally，thetemperaturedropcharacteristicsofthevacuumtankwasanalyzed．Resultsshowedthattheheatstorag

6、eofthefactorylininginthevacuumtankwasobviousinsufficientwiththetemperatureconditioninwhichthetankwaspreheatedtO130()℃in20htransiently．Andthetemperatureofthetopareawaslessthan8()()℃afterthecoolingprocess．Soitcouldnotmeetwiththeproductionrequirements．TheothertWOtemperatureboun

7、daryconditionsforthepreheating，allpartsofthevacuumtankexhibitedahighertemperaturethan800℃afterthecoolingprocess，couldmeetwiththeproductionrequirements．Also，agoodcorrelationwasobtainedbetweenthetemperaturedistributionofvacuumtankafterpreheatingin96handcoolingnaturallyin30minw

8、iththeactualtemperaturedistribution．Fromtheeconomicpointofview，thetankwaspr