焚烧炉钢结构力学性能分析及温差应力研究

Study on the Structural Mechanical Properties and Thermal Stress of an Incinerator Steel Structure

焚烧炉是工业生产过程处理废液及废气的关键设备,采用STAAD.Pro软件按实际工程结构建立某焚烧炉三维模型。分析了炉体钢结构及板单元在恒荷载、风荷载、地震载荷以及三种热负荷工况下的整体静力状态。数值计算结果表明焚烧炉钢结构在基础组合工况下构件的强度和刚度均满足标准规范要求,其温差荷载在60℃和110℃时板单元应力强度根据标准进行判定合格,但当温差荷载达到160℃时板单元应力值超过了材料的强度设计值,实际操作时需严格控制炉内燃烧温度,防止长时间超温运行。

Incinerator is a key equipment for treating waste liquid and gas in industrial production.Based on the actual furnace structure,the 3D model of the incinerator was established by using STAAD.Pro software.The overall static state of furnace steel structures and plate ele⁃ments under constant load,wind load,seismic load and three thermal-load conditions was systematically analyzed.The numerical results re⁃veal that under the basic combination conditions,the strength and stiffness of the internal components of the incinerator steel structure meet the requirements of relevant standards and specifications.Specifically,when the temperature differential load is 60℃and 110℃,the stress strength of each plate is qualified according to the design standard,but when the temperature differential load reaches 160℃,the stress value of each plate exceeds the design strength value of the material.In actual operation,it is necessary to strictly control the combustion tempera⁃ture in the furnace to prevent long-term over-temperature operation.