【作者】 于洪杰； 熊奥博； 钱才富； 董汪平；

【Author】 Yu Hongjie;Xiong Aobo;Qian Caifu;Dong Wangping;Beijing University of Chemical Technology;SINOPEC Engineering Incorporation(SEI);

【机构】 北京化工大学机电工程学院； 中国石化工程建设有限公司设备室；

【摘要】 GB 151—2012征求意见稿提出固定管板式和U型管式换热器的双管板及其相关元件的强度设计方法,本文据此运用SW6设计了某固定管板式双管板换热器,并利用ANSYS有限元分析软件建立该换热器的有限元模型,对双管板进行了应力分析和强度校核。另外,利用ANSYS有限元分析软件对内、外管板的厚度进行了优化设计。比较两种设计方法计算的结果可知,基于有限元分析法对双管板厚度进行设计可以有效降低管程侧管板的厚度,相比而言,基于GB 151—2012征求意见稿的设计计算结果则显得过于保守。更多还原

【Abstract】 In GB 151—2012(draft),a strength design method is proposed for the double-tubesheets and the connected components of fixed-tubesheet heat exchangers or U-shape heat exchangers.In this paper,a fixed-double-tubesheets heat exchanger is designed based on SW6 and stress analysis with strength design is performed for the heat exchanger using finite element method with the software of ANSYS.In addition,strength optimization is also carried out numerically for the thickness of the two tubesheets,namely inside tubesheet and outside tubesheet.Comparison between SW6 design and finite element analysis indicates that the thickness of the double-tubesheets can be remarkably decreased based on the finite element analysis,or in other words,the design for the double-tubesheets according to GB151-2012(draft) is too conservative.更多还原