STRUCTURE FOR PREVENTING WELDING DISTORTION OF TRANSVERSE CORNER AND LNG CARGO TANK HAVING THE STRUCTURE

摘要

The present invention relates to a liquefied gas cargo tank having a welding deformation preventing structure of a transverse corner of a liquefied gas cargo tank and a welding deformation preventing structure of the transverse corner, shortening the length of the insulation box, and The length of the insulation installed between the insulation boxes is enlarged by the reduced length, the both ends of the two invar tubes are maintained in one insulation box, and the welding deformation prevention protrusion of the invar tube is combined in the welding deformation prevention groove. , it is possible to effectively prevent thermal deformation of the invar tube, as well as significantly reduce the number of insulation boxes installed to reduce the weight of the cargo tank and significantly reduce manufacturing costs, and reduce the boil off rate (BOR). can be implemented