The present invention relates to a liquefied gas storage tank and a vessel comprising the same. The liquefied gas storage tank comprises: a first barrier made of a metal material and forming an accommodating space for accommodating a cryogenic material; a first insulating wall provided on the outside of the first barrier; a second barrier provided on the outside of the first insulating wall and including a main barrier and an auxiliary barrier; and a second insulating wall provided on the outside of the second barrier. The first barrier includes: a plurality of flat portions fixed to the upper surface of the first insulating wall; and a curved portion formed between the plurality of flat portions to form a curved surface toward the accommodating space. The ratio (W/H) of the width (W) to the height (H) of the curved portion is in a range of 2.0 to 3.0 (2.0 <= W/H <= 3.0). Therefore, the burden of thermal stress caused by low temperatures and pressure stress caused by sloshing can be minimized.

    본 발명은 액화가스 저장탱크 및 이를 포함하는 선박에 관한 것으로, 본 발명의 액화가스 저장탱크는, 극저온 물질을 수용하는 수용공간을 형성하는 금속 재질의 1차방벽; 상기 1차방벽의 외측에 마련되는 1차단열벽; 상기 1차단열벽의 외측에 마련되며, 메인방벽과 보조방벽으로 이루어지는 2차방벽; 및 상기 2차방벽의 외측에 마련되는 2차단열벽으로 이루어지는 액화가스 저장탱크로서, 상기 1차방벽은, 상기 1차단열벽의 상면에 고정되는 복수 개의 평면부와, 상기 복수 개의 평면부 사이에 형성되며 상기 수용공간 쪽으로 곡면을 형성하는 곡면부로 이루어지고, 상기 곡면부의 높이(H) 대비 폭(W)의 비율(W/H)은, 2.0 내지 3.0 범위(2.0 ≤ W/H ≤ 3.0)인 것을 특징으로 한다.


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    Title :

    Liquefied gas storage tank and vessel comprising the same


    Additional title:

    액화가스 저장탱크 및 이를 포함하는 선박


    Contributors:
    PARK CHEON JIN (author) / CHOI BYUNG KI (author) / OH HOON KYU (author) / IM HONG IL (author) / PARK MIN KYU (author) / LEE SANG OK (author) / PARK SEONG BO (author) / KIM YONG TAI (author) / HEO WON SEOK (author) / KIM DONG WOO (author)

    Publication date :

    2021-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES



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