考虑压降和多壳的换热网络集成

doi:10.3969/j.issn.0438-1157.2013.11.033

化工学报 ›› 2013, Vol. 64 ›› Issue (11): 4128-4136.DOI: 10.3969/j.issn.0438-1157.2013.11.033

考虑压降和多壳的换热网络集成

蒋宁, 林露, 王雷

浙江工业大学机械工程学院, 浙江杭州 310032

收稿日期:2013-03-29 修回日期:2013-06-24 出版日期:2013-11-05 发布日期:2013-11-05
通讯作者: 蒋宁
作者简介:蒋宁(1977-),女,博士,副教授。
基金资助:
国家自然科学基金项目(51206147);浙江省科技厅重点创新团队项目(2010R50001)。

Heat exchanger network integration considering pressure drops and multiple shells

JIANG Ning, LIN Lu, WANG Lei

College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China

Received:2013-03-29 Revised:2013-06-24 Online:2013-11-05 Published:2013-11-05
Supported by:
supported by the National Natural Science Foundation of China(51206147)and the Key Science and Technology Innovation Team Program of Zhejiang Province(2010R50001).

摘要/Abstract

摘要： 介绍了一种考虑压降和多壳的换热网络集成方法。首先采用埃索法推导得出不依赖于各种校正系数的管壳式换热器壳程压降计算关联式,并通过考虑换热器内是否存在温度交叉来计算换热器所需的壳数;然后以包含压降相关费用的年度总费用为优化目标,利用遗传算法,实现换热网络的优化设计。案例研究表明压降相关的动力与投资费用在换热网络年度总费用中占一定比例。所提出的方法能有效处理考虑压降和多壳所引入的非线性问题,使设计结果更为经济和可靠。

关键词: 传热, 换热网络, 压降, 多壳, 遗传算法, 集成

Abstract: A systematic procedure to integrate the heat exchanger network considering pressure drops and multiple shells is described.The shell-side pressure drop correlation without resorting to correction factors is developed from the Esso method.The number of shells is calculated by considering the temperature cross in a heat exchanger instead of the designer's choice for the ratio.The network spaghetti design is solved by the optimization of total annual cost with the genetic algorithm.The case study shows that the proposed method can handle more constraints and make the computation more reliable and optimized.

Key words: heat transfer, heat exchanger network, pressure drops, multiple shells, genetic algorithm, integration

中图分类号:

TQ021.8

蒋宁, 林露, 王雷. 考虑压降和多壳的换热网络集成[J]. 化工学报, 2013, 64(11): 4128-4136.

JIANG Ning, LIN Lu, WANG Lei. Heat exchanger network integration considering pressure drops and multiple shells[J]. CIESC Journal, 2013, 64(11): 4128-4136.

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考虑压降和多壳的换热网络集成

Heat exchanger network integration considering pressure drops and multiple shells

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