基于流固耦合的转炉托圈热应力仿真

本资料包含pdf文件1个，下载需要1积分

The whole models of the trunnion ring and its connected devices as well as the converter have been built to explore the reasons of cracks. As the inner web and interior temperature of the trunnion ring can hardly be measured, fluid-solid coupling method has been used to simulate the flow heat transfer between the cooling water and the trunnion ring. Considering the furnace radiation and contact heat conduction, the temperature distribution of the trunnion ring and its connected devices was obtained by simulation. And the thermal stresses of the trunnion ring and its connected devices were calculated using the indirect coupling method on basis of the temperature field simulation. Results showed that the trunnion ring have a margin of safety under the influence of the thermal stress.为探讨转炉托圈裂纹产生的原因，建立了托圈及其联接装置与炉体等整体模型。因难以测量托圈内腹板和内部温度，采用流固耦合的方法仿真冷却水和托圈之间的流动传热。在考虑炉体辐射和接触热传导的情况下，仿真得到托圈及其联接装置温度场分布。在温度场仿真的基础上，利用间接耦合法计算出托圈及其联接装置的热应力，计算结果表明托圈在热应力作用下有一定的安全裕度。