一种天圆地方结构的设计及改进  

Retrofit Scheme for Round Top and Square Bottom

作　　者：赵厦[1,2] 张型波[1,2] 马一鸣[1,2] 赵国栋[1,2] 宋俊霞[1,2] 

机构地区：[1]甘肃蓝科石化高新装备股份有限公司,甘肃兰州730070 [2]上海蓝滨石化设备有限责任公司,上海201518

出　　处：《石油化工设备》2016年第1期48-53,共6页Petro-Chemical Equipment

摘　　要：对常规天圆地方连接结构进行了加筋改进,并相应地建立了两种线性力学分析模型。有限元计算结果表明,加筋后的天圆地方连接结构承压能力提高,锥壳上添加筋板可以弱化整体结构的应力,增强了整个模型的可靠性。The rib plates,which are added to original round top and square bottom structure,is improved structure.And two linear mechanical analysis models are established accordingly.By comparing the results of stress linearization,the superiority of the new structure is obtained.Through the analysis of the new model results,it is obtained that conical shell with steel plate can weaken the stress of the whole structure,and the new model is more stability.The structure with steel plate provides a new method and the scientific basis for the security of chemical equipment.

关 键 词：天圆地方结构 有限元分析 空气预热器 数值模拟 

分 类 号：TQ050.2[化学工程] O242.21[理学—计算数学]