Liquefied gas transfer device for reducing boil-off gas

A liquefied natural gas (LNG) transportation apparatus for reducing boil-off gas, comprising:

• at least one transportation pipe which is vertically formed in a vessel or container which stores LNG and transports the LNG;
• a branch pipe which branches off from a bottom of the transportation pipe toward one side of the transportation pipe, and an end portion thereof is open toward a bottom surface of the vessel or container;
• a valve which is connected to at least one of the branch pipe and the transportation pipe and opens and closes one of the branch pipe and the transportation pipe to move the LNG from the transportation pipe to the branch pipe;
• and
• a resistor member which intervenes in the branch pipe to interrupt a flow of the LNG,
• wherein the transportation pipe comprises a first transportation pipe which allows the LNG to flow into the vessel or container and a second transportation pipe which allows the LNG to flow into the vessel or container or to be discharged outside the vessel or container,
• wherein the branch pipe branches off from the second transportation pipe, and
• wherein the valve is formed as a check valve which is connected to a bottom of the second transportation pipe to prevent the LNG discharged along the second transportation pipe from flowing backward, and the branch pipe branches off from the check valve.