双管板换热器管板设计厚度探讨  

Study on the design thickness of tubesheet for double tube-sheet heat exchanger

作　　者：郑丽娜[1] 王家帮[1] 贺小华[1] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏省南京市210009

出　　处：《炼油技术与工程》2009年第4期39-43,共5页Petroleum Refinery Engineering

摘　　要：由于双管板换热器管板结构的多样性,其管板厚度设计方法目前国内没有标准可依,国外TEMA标准也仅给出了3种设计计算模型。针对某U形管及固定管壳式换热器双管板结构,根据SW6软件相应模块进行管板厚度近似计算,在此基础上采用ANSYS软件对管板模型结构进行热应力分析并进行优化设计。分析结果表明,双管板换热器管板厚度采用SW6软件近似计算是安全的,但结果过于保守。有限元优化设计有效地降低了管板厚度,为双管板换热器管板设计提供了有效手段。Due to the diversity of the tubesheet construction for double tube-sheet heat exchangers, there is no national design standard for design thickness of tubesheet, and only three specific design models are given in TEMA standard. The approximate calculation of tubesheet based on SW6 software was made for U-tube and fixed shell and tube heat exchangers, and the thermal stress analysis and optimization design of tubesheet were made by ANSYS software. The results show that the approximate calculation of the design thickness of tubesheet for double tube-sheet heat exchangers by SW6 software is safe, but the result is conservative. Optimization design based on finite element analysis has effectively reduced the design thickness of tube-sheet and provided a useful means for the design of tubesheet for double tube-sheet heat exchangers .

关 键 词：双管板换热器 管板厚度 SW6软件 热应力分析 优化设计 

分 类 号：TQ051.5[化学工程]