液化天然气长距离低温管网运输与冷能梯级利用

doi:10.3981/j.issn.2097-0781.2024.02.005

前瞻科技 ›› 2024, Vol. 3 ›› Issue (2): 50-58.DOI: 10.3981/j.issn.2097-0781.2024.02.005

液化天然气长距离低温管网运输与冷能梯级利用

梁永图¹^,^†(), 张博¹, 徐斌¹, 赵延兴², 韩辉³, 安峰辰¹

1.中国石油大学（北京）机械与储运工程学院，北京 102249
2.中国科学院理化技术研究所，北京 100190
3.中国石油大学（华东）建筑与储运工程学院，青岛 266033

收稿日期:2024-01-10 修回日期:2024-03-28 出版日期:2024-06-20 发布日期:2024-06-26
通讯作者: †
作者简介:梁永图，教授，博士研究生导师。Computer Modeling in Engineering & Science、Journal of Pipeline Science and Engineering、《石油科学通报》副主编，Energy 360和《油气储运》编委。主要从事液化天然气长距离管网输送系统调度、油气物流与管道系统优化、油气田地面系统优化研究。主持国家级科研项目7项及多项其他类型科研项目。获高等学校科学研究优秀成果奖科技进步奖、中国石油和化工自动化应用协会科技进步奖、中国机械工业科技进步奖等省部级奖励10项。出版专著2部、译著1部，发表论文220余篇，授权发明专利10余件。电子信箱：liangyt21st@163.com。
基金资助:
国家自然科学基金(52341203)

Liquefied Natural Gas Long-distance Cryogenic Pipeline Transportation and Cold Energy Cascade Utilization

LIANG Yongtu¹^,^†(), ZHANG Bo¹, XU Bin¹, ZHAO Yanxing², HAN Hui³, AN Fengchen¹

1. College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing), Beijing 102249, China
2. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
3. College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266033, China

Received:2024-01-10 Revised:2024-03-28 Online:2024-06-20 Published:2024-06-26
Contact: †

摘要/Abstract

摘要：

液化天然气（LNG）将成为中国天然气市场的主力军，对保障国家“碳达峰、碳中和”目标顺利实现起到重要作用。LNG长距离低温管网输送有助于实现LNG蕴含冷能的高效转移与梯级利用，并可与冷网、天然气管网深度耦合，有利于促进LNG、冷能、天然气等能源综合输送跨越式发展。文章系统总结了LNG长距离低温管网输送技术、长距离管网输送LNG冷能梯级利用技术、LNG长距离低温管网调控技术和LNG长距离低温管网与多网系统的融合技术发展现状，分析了相关技术在能源安全新战略驱动下面临的关键挑战，并对未来趋势进行展望，以期为后续中国LNG长距离低温输送与多网系统融合技术应用和提升提供科学思路和技术发展方向。

关键词: LNG管网输送, 冷能利用, 管网调控, 多网融合

Abstract:

Liquefied Natural Gas (LNG) is set to become the backbone of China’s natural gas market, playing a crucial role in ensuring the successful achievement of the country’s “carbon peak and carbon neutrality” targets. The long-distance cryogenic pipeline transportation of LNG facilitates the efficient transfer and tiered utilization of the inherent cold energy in LNG. Furthermore, its deep integration with cold networks and natural gas pipelines enhances the potential for leapfrog development in the integrated transportation of LNG, cold energy, and natural gas. This article systematically summarizes the current state of various technologies including long-distance cryogenic pipeline transportation for LNG, tiered utilization of cold energy in long-distance pipelines, regulation technology for long-distance cryogenic LNG pipelines, and the integration of such pipelines with multi-network systems. It analyzes the key challenges these technologies face under new energy security strategies and forecasts future trends. This outlook aims to provide scientific perspectives and directions for the development and enhancement of technologies for the integration of long-distance cryogenic LNG transportation with multi-network systems in China.

Key words: transportation of LNG in pipeline network, utilization of cold energy, pipeline network regulation, multi-network integration

梁永图, 张博, 徐斌, 赵延兴, 韩辉, 安峰辰. 液化天然气长距离低温管网运输与冷能梯级利用[J]. 前瞻科技, 2024, 3(2): 50-58.

LIANG Yongtu, ZHANG Bo, XU Bin, ZHAO Yanxing, HAN Hui, AN Fengchen. Liquefied Natural Gas Long-distance Cryogenic Pipeline Transportation and Cold Energy Cascade Utilization[J]. Science and Technology Foresight, 2024, 3(2): 50-58.

图/表 3

图1 2014—2023年中国LNG进口量及增长情况

Fig. 1 China’s LNG import volume and growth in 2014-2023

图2 LNG管网输送与冷能利用技术

Fig. 2 Pipeline network transportation and cold energy utilization technology of LNG

图3 多能源-多能级-多目标LNG管网输送系统调控

Fig. 3 Regulation of multi-energy, multi-level, and multi-target LNG pipeline network transportation system

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液化天然气长距离低温管网运输与冷能梯级利用

Liquefied Natural Gas Long-distance Cryogenic Pipeline Transportation and Cold Energy Cascade Utilization

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