Chemical Industry and Engineering Progress ›› 2017, Vol. 36 ›› Issue (04): 1180-1186.DOI: 10.16085/j.issn.1000-6613.2017.04.004

Previous Articles     Next Articles

Heat exchange network synthesis and optimization for batch process considering scheduling

DENG Chao1, LIU Linlin1,2, LIANG Xinyuan1, CHEN Yanling1, DU Jian1   

  1. 1 Institute of Chemical Process Systems Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China;
    2 Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education(MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2016-08-26 Revised:2016-09-08 Online:2017-04-05 Published:2017-04-05

考虑生产排序的间歇过程换热网络综合与优化

邓超1, 刘琳琳1,2, 梁馨元1, 陈雁玲1, 都健1   

  1. 1 大连理工大学化工系统工程研究所, 辽宁 大连 116024;
    2 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, 辽宁 大连 116024
  • 通讯作者: 都健,教授,研究方向为过程系统工程。E-mail:dujian@dlut.edu.cn。
  • 作者简介:邓超(1992-),女,硕士研究生,研究方向为间歇过程换热网络综合。
  • 基金资助:
    国家自然科学基金项目(21576036)。

Abstract: Heat exchange network(HEN) synthesis is an important part of chemical process system engineering. Time,equipment and scheduling should be considered regarding to the design of the HEN for batch process,which brings complexity to the design of batch process. This paper focused on direct heat integration for multi-stage batch process considering scheduling. By using overlapping and non-overlapping operation and adjusting the limited cycle time,the opportunity of direct heat exchange was increased and the equipment idle time was reduced. Thus,three different production plans were obtained. Then for each production plan,an initial HEN was synthesized using heuristic method. Based on this method,HEN structure evolution was conducted by using the proposed progressive evolution rules and the trade-off between utility cost and equipment cost. After that,the number of heat exchangers and the branch streams was decreased. HEN with minimum total annual cost and less heat exchangers was gotten. The comparison between the three plans shows the scheduling effect on the HEN synthesis. Finally,an example was used to show the application and effectiveness of the proposed method.

Key words: batch process, heat exchange network, integration, optimization, scheduling, systems engineering

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。

关键词: 间歇过程, 换热网络, 集成, 优化, 生产排序, 系统工程

CLC Number: 

京ICP备12046843号-2;京公网安备 11010102001994号
Copyright © Chemical Industry and Engineering Progress, All Rights Reserved.
E-mail: hgjz@cip.com.cn
Powered by Beijing Magtech Co. Ltd