LNG耐超低温柔性管道研究进展综述——工业应用与结构设计分析  

SUMMARY OF DEVELOPMENT OF LNG CRYOGENIC FLEXIBLE HOSE——INDUSTRIAL APPLICATION AND STRUCTURAL ANALYSIS

作　　者：杨亮 刘淼儿 范嘉堃 李方遒 英玺蓬 步宇峰 曹慧鑫 张凯仑 杨建业 杨志勋 Yang Liang;Liu Miaoer;Fan Jiakun;Li Fangqiu;Ying Xipeng;Bu Yufeng;Cao Huixin;Zhang Kailun;Yang Jianye;Yang Zhixun(Research and Development Center,CNOOC Gas&Power Group Co.,Ltd.,Beijing 100028,China;Ningbo Research Institute of Dalian University of Technology,Ningbo 315016,Zhejiang,China;College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]中海石油气电集团技术研发中心,北京100028 [2]大连理工大学宁波研究院,浙江宁波315016 [3]哈尔滨工程大学机电工程学院,哈尔滨150001

出　　处：《力学学报》2022年第10期2904-2921,I0006,共19页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家自然科学基金(U1906233,52001088)资助项目。

摘　　要：LNG (液化天然气)耐超低温柔性管道是开采、运输、存储LNG过程中的关键装备之一,被誉为是LNG外输系统的“血管”.近年来,随着LNG的开发逐渐由近海走向深远海,耐超低温柔性管道作为LNG外输系统中的核心输运装备迎来了更加广阔的发展前景,同时也面临着由更加严苛的海洋环境带来的结构失效的挑战.本文针对LNG耐超低温柔性管道的工程应用背景、结构设计、内流分析等方面进行了调研与综述,总结了LNG耐超低温柔性管道上述各项技术的研究进展.分析了LNG耐超低温柔性管道的波纹管状结构、螺旋缠绕结构和高分子材料的柔顺性结构特征的力学机理,总结了实现柔顺性结构的方法,梳理了LNG耐超低温柔性管道管内流体计算分析的规律,并对LNG耐超低温柔性管道相关技术的未来研究热点提出了展望.我国在LNG耐超低温柔性管道相关技术的研究工作中起步相对较晚,突破LNG耐超低温柔性管道的结构设计分析与工业应用中的关键力学问题,实现LNG耐超低温柔性管道的国产化研制,对于实现我国深远海天然气资源开发的“卡脖子”技术的自主可控,助力“碳达峰”国家战略目标的实现具有重要意义.LNG(liquefied natural gas) cryogenic flexible hose is one piece of the key equipment in the process of exploitation, transportation and storage of LNG, which is called as the "blood vessel" of LNG transportation system.With the development of exploitation and transportation of LNG gradually from the offshore to the deep sea in recent years, there is a broader development prospect for LNG cryogenic flexible hose as the core equipment in the LNG transportation system, however, which will face more stringent challenges of structural failures caused by more stringent marine environment at the same time. In this paper, the engineering application background, structural design and internal fluid analysis of LNG cryogenic flexible hose are focused on and the related key technologies are investigated. The research progresses of the above mentioned technologies of LNG cryogenic flexible hose are summarized. Based on the investigations, the flexible structural characteristics of the corrugated structure, the spiral wound structure and the high polymer material in LNG cryogenic flexible hose are classified, the related mechanical mechanism is analyzed and the methods to achieve flexible structural characteristics are summarized. In internal fluid analysis, the responses of calculation and analysis in LNG cryogenic flexible hose are reviewed and combed. In addition, the future research hotspots of LNG cryogenic flexible hose technologies are prospected. The related research work of LNG cryogenic flexible hose technology started relatively late in China, the key technologies of mechanical design and analysis and industrial application of LNG cryogenic flexible hose need to be broken through to improve the ability of domestic design and manufacture of LNG cryogenic flexible hose. It is of great significance to realize independent and controllable key technologies in the development of natural gas resources and to promote the realization of the national strategic goal of "peak carbon dioxide emissions" in China.

关 键 词：液化天然气输运 耐超低温柔性管道 复合材料管道 结构设计分析 内流分析 

分 类 号：O342[理学—固体力学]