Liquefied natural gas (LNG) low-temperature tank molecular sieve filling structure

The utility model relates to an LNG (Liquefied Natural Gas) low-temperature tank molecular sieve filling structure which comprises an inner tank and an outer tank, the space between the inner tank and the outer tank is vacuum, a filling box is arranged on the outer wall of the inner tank, a feed port protruding outwards is formed in one side, close to the inner wall of the outer tank, of the filling box, and a silk screen for blocking filler is arranged in the joint of the feed port and the filling box; an explosion-proof opening is formed in the outer tank; the sealing cover is made of an elastic material, covers the feeding hole, and interacts with the feeding hole in a sealing connection manner; a connecting ring is arranged on the side, close to the outer tank, of the sealing cover, a pull rope is connected to the connecting ring, and the pull rope extends out of the anti-explosion opening in the outer tank. The device is simple in structure and convenient to operate, the molecular sieve is effectively pr