The present invention provides a liquefied natural gas (LNG) storage tank, which comprises: a secondary sealing wall provided on an insulating wall installed on an inner wall of the storage tank and having a convex second corrugation part formed to be corrugated at predetermined intervals; a primary sealing wall provided in a spaced apart state on the secondary sealing wall, a convex first corrugation part is formed at a position corresponding to the convex second corrugation part, and in direct contact with the liquefied natural gas; and a spacer interposed between the primary sealing wall and the secondary sealing wall, a through hole through which the second corrugation part passes, and maintaining a constant distance between the primary sealing wall and the secondary sealing wall. The spacer is formed to correspond to the shape of the second corrugation part so that an inner surface of the through hole is closely coupled with the second corrugation part, and is fixedly installed on the secondary sealing wall based on the second corrugation part.
본 발명은 저장탱크의 내부벽에 설치되는 단열벽 상에 구비되고, 소정 간격으로 볼록한 제2 주름부가 형성되는 2차 밀봉벽, 2차 밀봉벽 상에 이격된 상태로 구비되고, 제2 주름부와 대응하는 위치에 볼록한 제1 주름부가 형성되며, 액화천연가스와 직접 접하는 1차 밀봉벽 및 1차 밀봉벽과 2차 밀봉벽 사이에 개재되고, 제2 주름부가 통과하는 통과홀이 형성되며, 1차 밀봉벽과 2차 밀봉벽 사이의 간격을 일정하게 유지시키는 스페이서를 포함하고, 스페이서는 통과홀의 내측면이 제2 주름부와 밀착 결합되도록 제2 주름부의 형상과 대응하게 형성되어, 제2 주름부를 기준으로 2차 밀봉벽에 고정 설치되는 액화천연가스 저장탱크를 제공한다.
A LNG STORAGE TANK AND THE CONTRUCTION METHOD THEREOF
액화천연가스 저장탱크 및 그 시공방법
2021-09-01
Patent
Electronic Resource
Korean
INSULATION SYSTEM FOR LIQUIFIED GAS STORAGE TANK AND CONTRUCTION METHOD THEREOF
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