考虑生产排序的间歇过程换热网络综合与优化

发布时间：2018-03-26 00:21

本文选题：间歇过程　切入点：换热网络　出处：《化工进展》2017年04期

【摘要】：间歇过程换热网络综合是化工系统工程研究的重要部分,设计时需要考虑时间、设备、生产排序等多方面因素,具有一定的复杂性。本文围绕多批次间歇过程的直接换热问题,考虑生产排序的影响,采用覆盖操作和非覆盖操作,通过调整批间隔增加流股直接换热的可能性,减少设备闲置,得到3种不同的生产方案;针对每一个生产方案,采用启发式方法综合得到初始换热网络,并对该网络进行结构调优,提出渐进调优规则,在公用工程费用和设备费用间作权衡,减少换热器个数和流股分流,得到年度总费用最低且换热设备个数较少的换热网络,使其更符合实际应用;将3种生产方案对比,可以发现生产排序对换热网络的影响。最后将所提方法应用于实际算例,验证所提方法的可行性。
[Abstract]:Batch process of heat exchanger network synthesis is an important part of chemical system engineering, the design needs to consider many factors, equipment, production scheduling, has a certain complexity. This paper focuses on the multi batch batch process of direct heat transfer, considering the influence of the scheduling of production, operation and non operation coverage coverage, increase the possibility of direct stream heat transfer by adjusting the number of intervals, reduce equipment idle, get 3 different production plan; for each project, using the heuristic method of comprehensive initial heat exchanger network, and the network structure optimization, proposed an evolutionary rule, the tradeoff between utility cost and equipment cost. Reduce the number of heat exchangers and heat exchanger network stream diversion, the total annual cost and the minimum heat exchanger number less, which is more consistent with the actual application; comparing the 3 kinds of production plan, can The effect of production scheduling on heat exchanger networks is found. Finally, the proposed method is applied to practical examples to verify the feasibility of the proposed method.

【作者单位】：大连理工大学化工系统工程研究所;大连理工大学环境学院工业生态与环境工程教育部重点实验室;
【基金】：国家自然科学基金项目(21576036)
【分类号】：TQ021.8

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