外压容器加强圈断开后加强效果分析  

Strengthening Effect Analysis of Broken Stiffening Ring of External Pressure Vessel

作　　者：郑英杰 付冰洋 段滋华[2] 

机构地区：[1]张家港化工机械股份有限公司设计科,江苏张家港215600 [2]太原理工大学,山西太原030024

出　　处：《石油化工设备》2014年第2期44-48,共5页Petro-Chemical Equipment

摘　　要：针对外压容器加强圈因接管和预焊件而被断开的情况,借助有限元软件ANSYS,利用特征值分析、双非线性分析方法对其失稳行为进行了研究。结果表明,随着开孔率的增加,分析模型的临界压力不断降低,通过加大加强圈的尺寸并不能有效恢复筒体的承载能力;加强圈因垫板而断开时,其对筒体临界外压的影响较小。Based on the ANSYS, the elastic-plastic constitutive relation and dual nonlinear anal- ysis method are used to analyze the critical pressure of the cylinder that had the stiffening ring broken by nozzle or pad. The results showed that with the increase of the opening ratio, the criti- cal pressure of the analysis model to continuously reduce and the critical pressure of the cylinder cannot be significantly improved by increasing the size of the stiffening ring. The critical pressure of the cylinder to reduce rarely when the stiffening ring broken by pad.

关 键 词：外压容器 加强圈 有限元 临界压力 

分 类 号：TQ050.2[化学工程]