特殊板壳式换热器封板的有限元模拟及强度研究  

Research on strength and FEA of seal plate in compact plate-shell heat exchanger

作　　者：孙爱芳[1] 刘敏珊[2] 董其伍[2] 

机构地区：[1]河南机电高等专科学校,河南新乡453002 [2]郑州大学热能研究中心,河南郑州450002

出　　处：《工程设计学报》2008年第4期295-299,共5页Chinese Journal of Engineering Design

基　　金：河南省科技发展计划项目(0524260042)

摘　　要：对于板壳式换热器中的特殊开口封板,利用APDL语言(ANSYS parametric design language)实现全参数化驱动的三维有限元模型,通过三维有限元模拟,并对关键区域作路径分析,获得封板的应力分布规律.实验结果验证了数值模拟的有效性.经过分析,归纳出封板中的应力影响因素,提出工程关联式模型.以不开口区环板上的最大综合应力为研究对象,对封板进行参数化数值分析,并对数值模拟结果进行数据处理与拟合,得到封板强度计算工程算式.拟合公式所得数据与原模拟数据相比,平均绝对误差为0.238 MPa,平均相对误差为1.8%,这对于工程应用已经足够精确,可为新产品的工程应用提供参考.For the seal plate with a special hatch used in special plate-shell heat exchanger, by utilizing the APDL（ANSYS parametric design language）, the entirely parametric 3D finite element model was established. Through 3D finite element simulation and path analysis in crucial area, the stress distribution regulation of seal plate was acquired. The experiment results validated the numerical simulation. Through analysis, the influencing factors were summarized and the engineering associated model was presented. By using serial simulation results and advanced data fitting technologies, the stress formula was obtained. Between the data from fitting expression and the simulating results, the average absolute error is 0. 238 MPa, and the average relative error is 1.8%. so it is accurate enough for engineering application. The work will provide the reference to engineering application of the new product.

关 键 词：板壳式换热器 封板 有限元模拟 强度 

分 类 号：TQ051.5[化学工程]