METHOD FOR ASSEMBLING BARRIER STRUCTURE OF LNG STORAGE TANK USING ANCHOR STRUCTURE, THE BARRIER STRUCTURE, AND THE LNG STORAGE TANK WITH THE BARRIER STRUCTURE

摘要

Disclosed is a barrier structure used by a liquefied natural gas (LNG) storage tank. The barrier structure is installed on the inner surface of the tank storing LNG gas to prevent LNG leaks. According to an embodiment of the present invention, the barrier structure includes: a heat insulation wall which blocks heat transmission between the inside and outside of the storage tank; a secondary sealing wall which is stacked on the heat insulation wall; a primary sealing wall which is stacked on the secondary sealing wall while being spaced apart from the secondary sealing wall to directly come in contact with the LNG; a spacer arranged between the primary and secondary sealing walls to maintain a gap there-between; an anchor structure which fixes the primary and secondary sealing walls onto the inner surface of the storage tank; and a fixing means which is coupled to the anchor structure to fix the spacer to the secondary sealing wall.