The invention is suitable for the technical field of hydrogen energy efficient storage, and provides a liquid hydrogen container heat insulation system which comprises a liquid hydrogen container comprising an evaporation hydrogen cold energy utilization system, a self-pressurization system and the like. Wherein an exhaust valve at the top of an inner container of the liquid hydrogen container is connected with an inlet of the first-stage heat exchange pipe, an outlet of the first-stage heat exchange pipe is connected with an inlet of the second-stage heat exchange sleeve, and an outlet of the second-stage heat exchange sleeve is connected with an inlet of the vaporizer; and a cold storage material is filled between inner and outer pipe interlayers of the second-stage heat exchange sleeve. The cold energy of evaporated hydrogen is stored by utilizing the cold storage material, so that the temperature of the second-stage cold screen can be maintained at a relatively low temperature level for a long time, and meanwhile, the rewarming process of the first-stage cold screen is greatly delayed, so that the effective time of the first-stage cold screen and the second-stage cold screen is effectively prolonged, and the service life of the first-stage cold screen and the second-stage cold screen is prolonged. The limitation of BOG exhaust discontinuity, large volatility and poor heat exchange performance on actual application of the air cooling screen is overcome, and environment heat leakage of the vehicle-mounted liquid hydrogen container is effectively reduced.
本发明适用于氢能源高效储存技术领域,提供了一种液氢容器绝热系统,该系统包括含有蒸发氢气冷能利用系统的液氢容器、自增压系统等。其中,液氢容器内容器顶部的排气阀与一级换热管入口相连接,一级换热管出口与二级换热套管入口相连接,二级换热套管出口与汽化器入口相连接;二级换热套管的内外管夹层之间填充有蓄冷材料。本发明利用蓄冷材料将蒸发氢气冷能进行储存,使得二级冷屏温度能够长时间维持在较低的温度水平,同时大大延缓了一级冷屏的复温过程,使得一级冷屏及二级冷屏的生效时间都得到了有效延长,克服了BOG排气不连续性、波动性较大及换热性能差对气冷屏实际应用的限制,有效降低了车载液氢容器环境漏热。
Heat insulation system of liquid hydrogen container
一种液氢容器绝热系统
2023-07-18
Patent
Electronic Resource
Chinese
IPC: | F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
INSULATION SUPPORT AND AUTOMOTIVE LIQUID HYDROGEN STORAGE CONTAINER CONTAINING INSULATION SUPPORT
European Patent Office | 2023
|European Patent Office | 2023
|European Patent Office | 2024
Vacuum heat insulation system for liquid hydrogen transport ship cargo hold
European Patent Office | 2025
|