基于自组织Petri Net的间歇过程换热网络优化设计  

Optimal design of batch heat exchanger networks based on self-organizing Petri Net

作　　者：贾洋[1] 肖武[1] 董宏光[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116012

出　　处：《化工学报》2010年第12期3167-3171,共5页CIESC Journal

基　　金：国家自然科学基金项目(20876020) ;中央高校基本科研业务费专项资金项目(1000-893368)~~

摘　　要：根据热级联分析法的基本思想,在优化设计连续过程换热网络的自组织PetriNet模型中,引入时间库所表示间歇过程时间,使其适合于优化设计间歇过程换热网络,拓展了PetriNet对时间的表示形式,有利于对系统可达性进行研究。另外,根据垂直匹配原则,对换热网络夹点匹配的分流问题进行了研究,建立了综合考虑夹点规则的数学公式,有利于快速准确地进行夹点处流股的分流匹配。通过实例计算说明了提出方法的可行性和有效性。According to the time-dependent heat cascade analysis technique,time places,which represent time for batch process,were imported to the self-organizing Petri Net modules of continual heat exchange network（HEN）to optimize batch HEN.Introducing time places,the representation of time in Petri Net was developed and the research of reachability became easy.Besides,based on the enabling rule of vertical heat transfer,streams split in HEN based on pinch technology were studied and the equations considering comprehensively all the principles of pinch technology were established to split steams accurately and quickly at the pinch point.An example was presented to demonstrate the validity and advantages of the proposed approach.

关 键 词：PETRINET 间歇过程 换热网络 优化设计 夹点技术 

分 类 号：TQ019[化学工程]