Disclosed is an insulation system of a liquefied gas storage tank. In accordance with the present invention, the insulation system of a liquefied gas storage tank includes: an insulation wall comprising a plurality of lower insulation panels, a plurality of upper insulation panels placed in upper areas of the lower insulation panels, and a bridge panel placed in a space between upper insulation panels adjacent to each other to cover a space between the lower insulation panels adjacent to each other; a secondary sealing wall of a composite material installed in an upper part of the insulation wall; a plywood layer installed in an upper part of the secondary sealing wall; and a primary sealing wall installed in an upper part of the plywood layer. The secondary sealing wall includes: a flat secondary barrier made of a flat sheet and attached to upper sides of the upper insulation panels and the bridge panel; and a corrugated secondary barrier having both side wing parts attached to an upper side of the circumference of the flat secondary barrier, and including a corrugated part projected downward between the both side wing parts. The corrugated part is housed in a groove formed in a boundary part between the upper insulation panels and the bridge panel. Therefore, the present invention is capable of securing the structural stability of the liquefied gas storage tank.

    액화가스 저장탱크의 단열시스템이 개시된다. 본 발명에 따른 액화가스 저장탱크의 단열시스템은, 다수의 하부 단열패널과, 하부 단열패널의 상부 면적 내에 배치되는 상부 단열패널과, 서로 이웃하는 상부 단열패널 사이의 간격에 배치되어 서로 이웃하는 하부 단열패널 사이의 간격을 덮는 브릿지패널을 포함하여 복수의 층으로 구성되는 단열벽; 단열벽의 상부에 설치되는 복합재 소재의 2차 밀봉벽; 2차 밀봉벽의 상부에 설치되는 플라이우드층; 및 플라이우드층의 상부에 설치되는 1차 밀봉벽을 포함하고, 2차 밀봉벽은, 편평한 시트로 이루어지며 상부 단열패널 및 브릿지패널의 상부면에 부착되는 평판형 2차방벽; 및 양측 날개부가 평판형 2차방벽의 가장자리 상부면에 부착되고, 양측 날개부 사이에 하방으로 돌출되는 주름부를 포함하는 주름형 2차방벽을 포함하며, 상기 주름부는 상부 단열패널과 브릿지패널 사이의 경계부에 형성되는 그루브에 수용되는 것을 특징으로 한다.


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    Title :

    INSULATION SYSTEM OF LIQUEFIED GAS STORAGE TANK


    Additional title:

    액화가스 저장탱크의 단열시스템


    Contributors:

    Publication date :

    2022-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



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