Abstract: Hydrogen is the ultimate clean energy to achieve zero carbon emissions. The storage and transportation of the liquefied hydrogen at sea has the characteristics of high storage and transportation efficiency and low long-distance transportation costs, which are crucial for the promotion and use of hydrogen energy worldwide. In the transnational and transregional liquefied hydrogen trade, large-capacity liquefied hydrogen carriers are the most economical, convenient and flexible storage and transportation tools, as well as strategic marine equipment with high technical difficulty and promising market value in the future. At present, the design and construction projects of the liquefied hydrogen carrier in the world are gradually increasing. Japan, South Korea and some European countries have taken the lead in exploring the cross-border liquefied hydrogen trade, and have conducted the corresponding research on the marine liquefied hydrogen carrier. However, research on the liquefied hydrogen carrier in China is still in the conceptual design stage, and the formulation of relevant specifications and guidelines is also in the early stage. The technical development and characteristics of the overall design, the liquefied hydrogen containment system, the liquefied hydrogen cargo handling system and the power system of the liquefied hydrogen carrier are analyzed to provide technology reference and guidance for the research, development and design of the liquefied hydrogen carrier and relevant equipment.

Key words: liquefied hydrogen carrier, general design, containment system, liquid cargo system, power system

摘要： 氢是实现零碳排放的终极清洁能源,海上液氢储运具有效率高和远距离运输成本低的特点,对于氢能在全球范围内的推广使用至关重要。在跨国跨地区的液氢贸易中,大装载量的液氢运输船是最具经济性、最为便捷灵活的储运工具,同时也是技术难度高且未来市场价值可期的战略性船海装备。目前,国际上有关液氢运输船的设计建造项目逐渐增多,日本、韩国和欧洲部分国家已率先探索跨境液氢贸易,并开展相应的海上液氢运输船项目研究,而国内关于液氢运输船的研究尚处于概念设计,相关规范指南的制定也处于起步阶段。该文通过分析液氢运输船总体设计、液氢围护系统、液氢货物处理系统和动力系统的技术发展现状及特点,为我国液氢运输船研发、设计及相关配套的研究提供技术参考与指导。

关键词: 液氢运输船, 总体设计, 围护系统, 液货系统, 动力系统