基于中空玻璃微珠和变密度多层绝热材料的液氢球罐复合隔热研究

樊想; 赵益达; 张国信; 党战伟; 李建仓; 白博峰

doi:10.19912/j.0254-0096.tynxb.2024-0561

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (8) : 234-239. DOI: 10.19912/j.0254-0096.tynxb.2024-0561

基于中空玻璃微珠和变密度多层绝热材料的液氢球罐复合隔热研究

樊想¹, 赵益达¹, 张国信², 党战伟³, 李建仓³, 白博峰¹

作者信息 +

RESEARCH ON COMPOSITE INSULATION OF LIQUID HYDROGEN SPHERICAL TANK BASED ON HOLLOW GLASS BEADS AND VARIABLE DENSITY MULTI-LAYER INSULATION MATERIALS

Fan Xiang¹, Zhao Yida¹, Zhang Guoxin², Dang Zhanwei³, Li Jiancang³, Bai Bofeng¹

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文章历史 +

摘要

液氢球罐隔热系统是实现低蒸发率及经济储存的关键。该文使用逐层模型研究了变密度多层绝热（VDMLI）和中空玻璃微珠（HGB）复合的隔热系统,设计了球罐夹层空间的支撑结构,并建立了球罐漏热量预测模型;对比了不同隔热设计下球罐日蒸发率,基于25 m³液氢球罐分析了夹层空间真空度、VDMLI总层数和层密度对球罐日蒸发率的影响,综合抽真空难度和隔热材料成本等因素设计了2000 m³液氢球罐的隔热系统。结果表明：2000 m³液氢球罐日蒸发率为0.042%,对比NASA同容积球罐日蒸发率降低了16%。

Abstract

The thermal insulation system of liquid hydrogen spherical tanks is the key to achieving low evaporation rate and economical storage. This paper uses “layer by layer” model to study the thermal insulation system composed of variable density multi-layer insulation （VDMLI） and hollow glass beads （HGB）, design the support structure of the spherical tank enclosed space, and establish a prediction model for the heat leakage of the spherical tank. In this paper, daily evaporation rate of spherical tank under different insulation designs were compared. The effects of the vacuum degree of enclosed space, the total number of VDMLI layers and the layer density on the daily evaporation rate of the 25 m³ liquid spherical tank were analyzed. Thermal insulation system of the 2000 m³ liquid hydrogen spherical tank was designed based on construction quality, vacuuming difficulty, and cost of thermal insulation materials. The results show that the daily evaporation rate of a 2000 m³ liquid hydrogen spherical tank is 0.042%, which is 16% lower than that of a NASA spherical tank with the same volume.

导出引用

樊想, 赵益达, 张国信, 党战伟, 李建仓, 白博峰. 基于中空玻璃微珠和变密度多层绝热材料的液氢球罐复合隔热研究[J]. 太阳能学报. 2025, 46(8): 234-239 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0561

Fan Xiang, Zhao Yida, Zhang Guoxin, Dang Zhanwei, Li Jiancang, Bai Bofeng. RESEARCH ON COMPOSITE INSULATION OF LIQUID HYDROGEN SPHERICAL TANK BASED ON HOLLOW GLASS BEADS AND VARIABLE DENSITY MULTI-LAYER INSULATION MATERIALS[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 234-239 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0561

中图分类号： TK91

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