摘要
再沸器是安装在精馏塔底部用来汽化塔底产物的换热器,与塔的连接管线应尽量短。由于塔和再沸器的材质、温度不同,会在竖直方向和管线轴向产生较大的热应力。以芳烃装置为例,运用CAESAR II软件对再沸器、脱庚烷塔以及相关管线进行了应力分析。针对如何对卧式再沸器进行精确建模、如何设计弹簧支架等问题,提出了建议。
The reboiler is a heat exchanger installed at the bottom of the distillation column for vaporizing the products at the column bottom.The connecting pipeline between the reboiler and the column should be as short as possible.Due to the difference in material and temperature between the column and the reboiler,a great amount of thermal stress will occur along the vertical direction and the axial direction of the pipeline.Taking aromatic unit as an example,stress analysis on the reboiler,the heptane removal column and the related pipelines is carried out via CAESAR II software.Suggestions on how to model the horizontal reboiler accurately and how to design the spring bracket are put forward.
作者
朱周军
ZHU Zhou-jun(Zhenhai Petrochemical Engineering Co.,Ltd.,Ningbo Zhejiang 315000,China)
出处
《化肥设计》
CAS
2020年第6期22-25,共4页
Chemical Fertilizer Design
关键词
塔
再沸器
卧式
应力
支座
弹簧
distillation column
reboiler
stress
bracket
spring
