Abstract: The present disclosure discloses a quick-connecting receptacle for a liquid hydrogen storage tank. The quick-connecting receptacle comprises: a storage tank for storing liquid hydrogen; and a receptacle connecting an external transmission pipe and the storage tank so that liquid hydrogen introduced through the external transmission pipe is stored in the storage tank. The receptacle includes an upper receptacle connected to a lower end portion of the transmission pipe and a lower receptacle connected to an upper portion of the storage tank. The lower receptacle includes a cylinder member accommodated therein, and as the cylinder member moves up and down, liquid hydrogen or gaseous hydrogen is stored in the storage tank or liquid hydrogen or gaseous hydrogen is discharged from the storage tank to outside.

Abstract: The present disclosure relates to a hydrogen liquefaction device, which may comprise: a cradle for forming an accommodating space in which a mobile storage container capable of storing liquefied hydrogen or a mobility that uses liquefied hydrogen as a power source can be accommodated; and a liquefier installed on one side of the cradle, cooling hydrogen in a gaseous state supplied from outside to a temperature which is equal to or below liquefaction temperature to generate liquefied hydrogen in a liquid state so as to supply liquefied hydrogen to the mobile storage container or the mobility, or recover vaporized gas generated from the mobile storage container in which liquefied hydrogen is stored or from the mobility for re-liquefaction into liquefied hydrogen.

Abstract: The present disclosure relates to a two-way twin-axial connector module of a receptacle for transporting liquefied gas, including a male connector connected to an end of a transferring pipe incorporating a first supply line for supplying liquefied gas and a first return line for retrieving vaporized gas, including a pair of male bayonets formed to protrude and surround protruding portions of the first supply line and the first return line, respectively, which are formed to protrude outward through the end of the transferring pipe, and a female connector incorporating a second supply line for supplying liquefied gas and a second return line for retrieving vaporized gas, to be connected to a supply source for supplying liquefied gas or a storage tank for storing liquefied gas, including a pair of female bayonets concavely formed and connecting with the second supply line and the second return line, respectively.

Abstract: The present disclosure relates to a hydrogen liquefaction device capable of liquefying gaseous hydrogen into a liquid state through multi-stage cooling by heat exchange between a heat pipe in which a refrigerant cooled by a cryocooler flows and hydrogen flowing through a micro-channel. The device may comprise a hydrogen pipe for connecting a hydrogen supply unit in which gaseous hydrogen is stored and a storage container in which liquid hydrogen liquefied in a liquid state is stored; and a heat exchange unit that cools hydrogen by at least one or more heat exchangers installed on the hydrogen pipe so that hydrogen being introduced from the hydrogen supply unit and flowing through the hydrogen pipe toward the storage container can be cooled and liquefied in a process of passing through the hydrogen pipe and be discharged to the storage container as liquid hydrogen.

Abstract: A liquid hydrogen fuel tank including a container is disclosed. The container includes an outer tank and an inner tank; a gaseous hydrogen discharge pipe configured to allow gaseous hydrogen to flow therein; a liquid hydrogen supply pipe, of which a portion is located inside the gaseous hydrogen discharge pipe; a discharge connection pipe, of which one end is connected to the gaseous hydrogen discharge port of the inner tank and the other end is connected to the gaseous hydrogen discharge pipe; and an injection connection pipe, of which one end is connected to the liquid hydrogen supply port and the other end is connected to the liquid hydrogen supply pipe; wherein the gaseous hydrogen discharge pipe includes at least one gas discharge port configured for a connector of an external gas moving pipe to be inserted thereinto.

Abstract: The present disclosure discloses a quick-connecting receptacle for a liquid hydrogen storage tank. The quick-connecting receptacle comprises: a storage tank for storing liquid hydrogen; and a receptacle connecting an external transmission pipe and the storage tank so that liquid hydrogen introduced through the external transmission pipe is stored in the storage tank. The receptacle includes an upper receptacle connected to a lower end portion of the transmission pipe and a lower receptacle connected to an upper portion of the storage tank. The lower receptacle includes a cylinder member accommodated therein, and as the cylinder member moves up and down, liquid hydrogen or gaseous hydrogen is stored in the storage tank or liquid hydrogen or gaseous hydrogen is discharged from the storage tank to outside.