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立壳管式冷凝器管内冷却水系在重力作用下进行膜状流动放热,管外系制冷剂蒸汽在竖管管壁进行凝结放热。传热计算中工程上往往采用试算法或图解法进行,由于它存在双重试算与图解,计算时极其烦琐又十分费时。采用PC-1500计算机进行计算,十分简便而且精度较高,只要对一些变量进行赋值,计算机便可打印出计算结果。文中介绍了计算框图和计算程序。
Vertical shell and tube condenser tube cooling water under the action of gravity film flow heat, outside the tube refrigerant vapor in the stand pipe wall condensation heat. Heat transfer calculation often used in engineering test or graphic method, due to its existence of double trial calculation and graphic calculation is extremely cumbersome and very time-consuming. Calculated using PC-1500 computer, is very simple and high precision, as long as the assignment of some variables, the computer can print out the calculation results. The paper introduced the calculation of block diagram and calculation procedures.