加热炉炉辊温度场数值模拟及结构改进研究  

Heating Furnace Roller Temperature Numerical Simulation and Improvement Research

作　　者：杨科[1] 王兴东[1] 欧阳德刚 罗巍 

机构地区：[1]武汉科技大学冶金装备及其控制教育部重点实验室,湖北武汉430081 [2]武钢钢铁(集团)公司研究院,湖北武汉430080

出　　处：《机械设计与制造》2015年第9期236-239,共4页Machinery Design & Manufacture

基　　金：湖北省自然科学基金重点项目(2010CDA023)

摘　　要：为解决某钢厂CSP(紧凑式带钢生产线)加热炉水冷炉辊辊环出现变形过量、烧蚀等失效问题,从流固耦合传热理论出发,对水冷炉辊结构进行简化与离散处理,建立炉辊三维稳态流固耦合传热有限元模型,进行了温度场仿真分析,结果表明辊环温度过高是引起失效的重要原因。计算得到的冷却水出口温度与工业现场测得的误差小于2%,仿真结果具有较高的可信度。在不增加制造成本的前提下,提出了炉辊结构的改进方案,以达到降低辊环温度的目的。相同条件下的温度场分析结果表明,改进结构辊环最高温度较原结构降低了16.5%,验证了结构改进的合理性。In order to solve the excessive deformation and ablation of the roller ring in the CSP furnace, starting from the fluid-solid coupled heat transfer theory, the simplified model of the water-cooled furnace roller was discreted, and the three- dimensional steady-state fluid-solid coupling heat transfer finite element model was established. The temperature field simulation results showed that the too high temperature was an important cause of the failure of the roller ring. Comparing the outlet temperature of cooling water between the simulation results and field monitoring, the error was less than 2%, which showed the simulation results had a high reliability. On the premise of not increasing the cost of manufacturing the roller ring, the structure of the furnace rollers was improved to reduce the temperature of the roller ring. Under the same conditions, temperature field analysis results showed that the improved roller ring＇s highest temperature was 16.5% lower than the original, and verified the rationality of improved structure.

关 键 词：CSP加热炉 炉辊 流固耦合传热 温度场模拟 结构改进 

分 类 号：TH16[机械工程—机械制造及自动化] TG307[金属学及工艺—金属压力加工]