双管板换热器管板设计厚度探讨

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。

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

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 th...