LNG加气站管路布局多目标优化研究

doi:10.3901/JME.2022.22.438

机械工程学报 ›› 2022, Vol. 58 ›› Issue (22): 438-449.doi: 10.3901/JME.2022.22.438

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LNG加气站管路布局多目标优化研究

万启航¹, 何柏岩^1,2, 聂锐¹, 王国彪^1,2, 杨建坤³

1. 天津大学机构理论与装备设计教育部重点实验室天津 300354;
2. 天津大学浙江国际创新设计与智造研究院绍兴 312099;
3. 中海油能源发展装备技术有限公司天津 300457

收稿日期:2022-05-26 修回日期:2022-08-01 出版日期:2022-11-20 发布日期:2023-02-07
通讯作者: 何柏岩(通信作者),男,1973年出生,博士,教授,博士研究生导师。主要研究方向为机械多体动力学与控制。E-mail:hebaiyan@tju.edu.cn
作者简介:万启航,男,1997年出生。主要研究方向为管路布局与优化。E-mail:wanqihang@tju.edu.cn
基金资助:
国家自然科学基金资助项目(52175027,52175242)

Research on Multi-objective Optimization of Pipeline Layout of LNG Refueling Station

WAN Qi-hang¹, HE Bo-yan^1,2, NIE Rui¹, WANG Guo-biao^1,2, YANG Jian-kun³

1. Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300354;
2. International Institute for Innovative Design and Intelligent Manufacturing of Tianjin University in Zhejiang, Shaoxing 312099;
3. CNOOC Energy Development Equipment Technology Co., Ltd., Shaoxing 312099

Received:2022-05-26 Revised:2022-08-01 Online:2022-11-20 Published:2023-02-07

摘要/Abstract

摘要： 针对液化天然气(Liquefied natural gas,LNG)加气站管路具有常温安装,低温、内压、大范围温度波动下运行的特点,为降低管路建设与运行成本、提高安全性,提出了一种基于非支配解排序多目标遗传算法的LNG管路布局优化设计方法。该方法通过引入传递矩阵法建立简化模型,实现对管路受力变形情况的快速有效分析,进而可对管路进行综合评价。为了在符合工程规则的前提下完成最小化长度、弯头数、流阻损失以及受力变形的管路布局,基于遗传算法建立了LNG管道优化模型,使用多目标优化方法得出了在路径短、能耗低、安全性高等方面达到帕累托最优的布局方案。最后,在不同工况下对优化所得管路布局方案进行热-结构耦合分析,以确保其能够安全可靠运行,并验证该方法的正确性及有效性。

关键词: 管路布局, 传递矩阵法, 多目标优化, 遗传算法

Abstract: Liquefied natural gas(LNG) refueling station pipelines are installed at ambient temperature and served under low temperature, internal pressure, and a wide range of temperature fluctuations. An optimal design method is proposed for LNG pipeline layout based on a non-dominated solution sorting multi-objective genetic algorithm to reduce pipeline construction and operation costs and improve safety. In this method, a simplified model is established by introducing the transfer matrix method, which can realize the rapid and practical analysis of the stress and deformation and then conduct a comprehensive evaluation of the pipeline. In order to complete the pipeline layout that minimizes the length, the number of elbows, the loss of flow resistance, the stress, and the deformation under the premise of conforming to the engineering rules, an optimization model for LNG pipeline is established based on genetic algorithm. The multi-objective optimization method is used to obtain the Pareto optimal layout scheme in terms of the short path, low energy consumption, and high safety. Finally, thermal-structural coupling analysis is carried out on the optimized pipeline layout scheme under different working conditions to ensure its safe and reliable operation and verify the method's correctness and effectiveness.

Key words: piping layout, transfer matrix method, multi-objective optimization, genetic algorithm

中图分类号:

TH122
TQ055

万启航, 何柏岩, 聂锐, 王国彪, 杨建坤. LNG加气站管路布局多目标优化研究[J]. 机械工程学报, 2022, 58(22): 438-449.

WAN Qi-hang, HE Bo-yan, NIE Rui, WANG Guo-biao, YANG Jian-kun. Research on Multi-objective Optimization of Pipeline Layout of LNG Refueling Station[J]. Journal of Mechanical Engineering, 2022, 58(22): 438-449.

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LNG加气站管路布局多目标优化研究

Research on Multi-objective Optimization of Pipeline Layout of LNG Refueling Station

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