摘要
本文研制的列管式换热器工艺计算 CAD 系统,对目前我国引进的美国 Aspenplus 大型软件进行了二次开发.提出了换热器 CAD 系统的总体设计思想.研制了与 Aspen plus 物性计算的接口程序;并对系统的结构和各主要子模块的设计做了论述,提出了换热介质在换热器中流动状态区域的划分方法和换热介质对照流速的概念及其计算方法;介绍了为所研制的系统而建立的换热器型号参教的管理系统.利用本系统进行许多实例计算,结果表明:换热器工艺计算的质量大为提高.工艺计算的时间平均缩短了20—35倍.
The global design scheme of the technological calculation of CAD system of hcat exchanger with tubeshell type is given by this paper.The structure of the systcm and the prime module in the system are described and the managcrial system of heat ex- changer type and parametetr is described.The exmplcs are calculated by thc system,thc cal- culating results prove that precision and efficiency of technological calculating arc im- proved,calculating time is reduced averagely by twenty to thirty-five times.
关键词
换热器
列管式
计算
CAD
heat exchanger with tubeshell type
technological calculating
the CAD system
the flowing speed for appreciation
