基于系统分解方法的换热网络分析与应用

THE ANALYSIS AND APPLICATION OF HEAT EXCHANGER NETWORKS BASED ON SYSTEM DECOMPOSITION METHOD

针对已有的换热网络结构，提出了一种基于系统分解方法的换热网络分析方法。它是把整个换热网络结构（复杂系统） 分解为若干子换热网络（子系统） 进行优化分析， 使热回收量达到最大， 并获得换热网络中各换热单元的最优操作参数。该方法对提高老厂现有的换热网络能量利用率已有成效。最后，通过对某厂原油蒸馏装置的换热网络系统进行分析， 说明了该方法的应用前景。

A method of Heat Exchanger Networks(HEN) analysis based on system decomposition method for existing HEN structure was proposed.The HEN structure (complicated system) was decomposed into some sub networks of heat exchangers (subsystems).The maximum energy recovery and optimal operation parameters of each heat exchanger were obtained.This method can raise the rate of energy recovery effectively for existing HEN of old factories and a HEN analysis application for an existing was also present.