再沸器膨胀节应力分布的电测分析  

The high temperature stain-gauging on the distributions of stress at the expansion joint of the reboiler

作　　者：张卫义[1] 安永明 

机构地区：[1]北京石油化工学院光机电装备技术北京市重点实验室,北京102617 [2]北京燕山石油化工股份有限公司化工一厂,北京102500

出　　处：《石油化工设备》2006年第5期19-21,共3页Petro-Chemical Equipment

基　　金：北京市优秀人才培养资助项目(20041D0500516)

摘　　要：采用高温条件下的电阻应变测量方法对再沸器膨胀节的应力分布进行了实际测量,得到了膨胀节外表面沿经线的周向应力分布规律,与有限元计算结果相符。测量结果验证了膨胀节上危险点之一位于波谷圆弧中心的外表面中心处。High temperature stain-gauging method is applied in the work to examine the distributions of stress at the expansion joint of the reboiler. The accuracy on the three-dimensional finite element model is verified. The distributions of stress at the expansion joint of the reboiler is obtained,one of the dangerous position are nearby the centre of the outside circular arc surfaces of wave-valley at the expansion joint.

关 键 词：换热器 膨胀节 高温应变测量 

分 类 号：TQ051.605[化学工程]