106DC失效原因分析与处理  

The reasons for 106DC failure and the solvents

作　　者：吕海清 姜巧凤[2] 

机构地区：[1]大庆石化分公司机动设备处,黑龙江大庆163714 [2]大庆石油化工总厂万隆物业,黑龙江大庆163714

出　　处：《炼油与化工》2004年第3期22-23,26,共3页Refining And Chemical Industry

摘　　要：为了解决低变106DC频繁泄漏的问题,对其失效原因进行了应力核算和综合分析,分析106DC失效的主要原因是:换热面积设计过大;换热管与壳体材料线膨胀系数差别大换热管压应力较高。采用了工艺调整和大面积堵管的方法维持设备运行,最终采用了减小换热器面积和U型管换热器更新该设备。In order to solve the problems of 106DC frequent leakage, stress calculation and extensive analysis were conducted. The reasons for 106DC failure was because the excessive design area and large liner expansion factor deferential between heat exchanger pipeline material and shell material, and that caused the higher pipeline press stress. In order to keep the equipment running, process operation adjustment and extensive pipeline repair were conducted, and ultimately reduced the heat exchange area and change the equipment with U type heat exchanger.

关 键 词：换热器 换热面积 线膨胀系数 失效 压应力 

分 类 号：TQ051.5[化学工程]