According to the present invention, in an insulation panel placement structure of a liquefied natural gas storage tank, the liquefied natural gas storage tank includes: a secondary insulation wall comprising a plurality of secondary insulation panels arranged in transverse and longitudinal directions of the storage tank; and a primary insulation wall comprising a plurality of primary insulation panels arranged in an upper part of the secondary insulation wall in transverse and longitudinal directions of the storage tank while being placed alternately with the secondary insulation panels such that their edges cross with each other. The storage tank is divided into a special area including a structure protruding towards the inside of the storage tank and a general area excluding the special area. The plurality of primary insulation panels include: a primary general insulation panel placed in the general area and manufactured with the same width and length as the secondary insulation panels such that each corner part can be fixed to the center of an upper part of the secondary insulation panels; a primary peripheral insulation panel placed in the special area and placed in a peripheral part of the protruding structure; and a primary edge insulation panel placed by being separately manufactured in a size corresponding to a space between the primary peripheral insulation panel and the primary general insulation panel, when the primary peripheral insulation panel is placed with an edge end which is not matched with an edge end of the primary general insulation panel placed adjacently. Therefore, the present invention is capable of reducing pressure on a membrane stacked in an upper part.
본 발명에 따른 액화천연가스 저장탱크의 단열패널 배치구조는, 저장탱크의 횡방향 및 종방향으로 배열되는 복수의 2차 단열패널로 구성되는 2차 단열벽과, 2차 단열벽의 상부에 저장탱크의 횡방향 및 종방향으로 배열되되 2차 단열패널과 가장자리가 서로 어긋나도록 교차 배치되는 복수의 1차 단열패널로 구성되는 1차 단열벽을 포함하는 액화천연가스 저장탱크에 있어서, 상기 저장탱크는 저장탱크의 내측 방향을 향하여 돌출된 구조물을 포함하는 특수 구역과 특수 구역을 제외한 일반 구역으로 구획되고, 복수의 1차 단열패널은, 일반 구역에 배치되며 2차 단열패널과 너비와 길이가 동일하게 제작되어 각 모퉁이 부분이 2차 단열패널의 상부 중앙에 고정되는 1차 일반 단열패널과, 특수 구역에 배치되며 돌출된 구조물의 주변부에 배치되는 1차 주변부 단열패널과, 1차 주변부 단열패널이 인접하게 배치되는 1차 일반 단열패널과 가장자리 끝단이 일치하지 않게 배치되는 경우, 1차 주변부 단열패널과 1차 일반 단열패널 사이의 공간에 대응되는 사이즈로 별도 제작되어 배치되는 1차 자투리 단열패널을 포함한다.
Insulation Panel Arrangement Structure of Liquefied Natural Gas Storage Tank
액화천연가스 저장탱크의 단열패널 배치구조
2021-02-02
Patent
Electronic Resource
Korean
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