热力仿真在RH真空槽设计分析中的应用  

Application of thermal simulation on design and analysis of RH vacuum tank

作　　者：刘向东 王翔[2] 宋朝省 高瞻 行开新[2] 

机构地区：[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

出　　处：《炼钢》2014年第3期50-53,共4页Steelmaking

摘　　要：采用SolidWorks Simulation热力仿真模块对RH真空槽离线加热至1 300℃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1 300℃预热真空槽20、96h以及预热至稳态共3种初始工况下再自然冷却30 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,30 min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96 h以及预热至稳态条件下,30 min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96 h并吊运安装30 min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96 h的方案。In this paper,the design and analysis of a new process technology which was lifting the vacuum tank to the work position with a original temperature 1 300℃by offline heating was performed using the thermal simulation module of SolidWorks Simulation.The finite element model of the vacuum tank including the shell and refractory lining was established.Three types of boundary conditions,in which the vacuum tank were preheated to 1 300℃for 96 h transiently,for 20 h transiently and preheated to the steady state,were considered in the performed simulations.Then,the vacuum tank was left to cool naturally in 30 min.Finally,the temperature drop characteristics of the vacuum tank was analyzed.Results showed that the heat storage of the factory lining in the vacuum tank was obvious insufficient with the temperature condition in which the tank was preheated to1 300℃in20 h transiently.And the temperature of the top area was less than 800℃after the cooling process.So it could not meet with the production requirements.The other two temperature boundary conditions for the preheating,all parts of the vacuum tank exhibited a higher temperature than 800 ℃ after the cooling process,could meet with the production requirements.Also,agood correlation was obtained between the temperature distribution of vacuum tank after preheating in 96 h and cooling naturally in 30 min with the actual temperature distribution.From the economic point of view,the tank was preheated for 96 h should be used in practical production.

关 键 词：设计分析 热力仿真 RH 真空槽 

分 类 号：TB472[一般工业技术—工业设计]