换热网络流程模拟系统

Simulator of Heat Exchanger Networks

本文建立了由换热器、分流器和混合器构成的换热网络流程模拟系统。经过系统分解求出系统中可以独立求解的子系统并给出计算顺序,对环路子系统,求出最佳断裂物流数及物流号,建立了基础物性数据库和标准系列换热器结构参数数据库。提出了校正传热单元数法求换热温度。结果输出详细,经对许多实例的模拟计算,取得了令人满意的结果。

This paper sets up a simulator of heat exchanger networks that con-sists of heat exchangers,mixers and splitters.Calculating order of subsys-tems which can be solved separately is determined by the decomposition ofthe system.For loop-subsystem,the minimum number of broken streams issolved,and meanwhile calculating order of their units is determined.Basicproperty data-base of some substances and structural parameter data-base ofheat exchangers are built.A correction heat-transfer-unit method of solvingtemperature of streams through the heat exchangers is proposed,and theoutcome is a detailed output.Many examples are simulated and the resultsare satisfactory.