基于响应面法炉腹异型管铜冷却壁的长寿技术优化

基于传热学理论，对近年来出现的高炉炉腹区异型管(椭圆型、矩型、双圆型、三圆型及正六边型)铜冷却壁传热模型进行参数化建模，基于冷却壁传热特性对冷却水管进行管型最优选择;模拟正常工况对开炉初期冷却壁镶砖热面未覆盖渣皮的传热模型进行热-结构耦合分析，利用响应面法得到各参数对铜冷却壁力学特性的相互影响规律.将响应面法与NSGA-Ⅱ遗传算法相结合对炉腹结构参数及长寿技术进行优化，优化后的炉腹结构在传热特性和力学性能方面均得到明显改善，结果证明所建模型和参数化计算程序可用作炉腹结构长寿技术的优化设计和评估.

Optimization of Longevity Technology for Bosh Copper Cooling Stave with Shaped Tubes Based on Response Surface Method

Based on the principle of heat transfer， a parametric model of thermal structure of blast furnace(BF)bosh with shaped tube copper cooling stave(ellipse， rectangle， double circle， three circle and hexagon)for heat transfer is presented. From the heat transfer analysis of copper cooling stave， the optimal choice of cooling water tubes is achieved. Stimulating the normal working condition of BF， the coupled thermal and structural analysis of the model at the initial stage of furnace opening， with the hot and cast-in-brick surface of cooling stave not covered by slag， is conducted to obtain the mutual influencing rules between parameters and its mechanical properties. The response surface method combined with genetic algorithm(NSGA-Ⅱ)is applied to optimize the structural parameters and longevity technology of bosh. The optimized bosh structure has been significantly improved in heat transfer characteristics and mechanical properties. The model and the parametric calculation program can be applied to assess and optimize the design of longevity technology of bosh.