The present invention relates to a heat insulation system of a liquefied gas cargo hold. According to the present invention, a first and second membranes are made of invar steel (INVAR, 36% Ni) having low heat shrinkage; a first heat insulation layer is a composite of plywood, a heat insulating material, a composite material, and so on, to have a thickness less than or equal to 20% of the thickness of a second heat insulation layer; the second insulation layer is formed by stacking glass fiber-reinforced polyurethane foam and plywood, or stacking plywood and a composite material; and a fixing invar structure is arranged at a transverse corner of the cargo hold to connect the first and second membranes for transferring the load of the cargo hold to the inner wall of a hull. According to the present invention, it is possible to achieve a cargo hold having a lightweight, compact and rigid structure and high heat insulation efficiency, and production costs can be reduced since the manufacturing process of a cargo hold is simplified.

    본 발명은 액화가스 화물창의 단열 시스템에 관한 것으로, 열수축량이 작은 인바강(INVAR, 36% Ni)을 1차 및 2차 멤브레인으로 사용하고, 1차 단열층은 플라이우드(plywood), 단열재, 복합재 등으로 조합된 복합체 형태로 구성되어, 2차 단열층 두께 대비 20% 이내의 두께를 가지고, 2차 단열층은 유리섬유로 강화된 폴리우레탄폼과 플라이우드 또는 플라우드 및 복합재료의 샌드위치 형태로 구성되며, 상기 화물창의 트랜스버스 코너부에는 상기 화물창의 하중을 선체 내벽으로 전달하기 위하여 상기 1차 및 상기 2차 멤브레인을 연결하는 고정용 인바 구조물이 구비되는 구조이다. 본 발명에 의하면, 경량화 및 슬림화 구현하고 단열성능 및 구조적 강성을 향상시킬 수 있음은 물론 화물창 제조공정이 단순화되어 생산원가를 절감할 수 있다.


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    Titel :

    Insulation System For Membrane Type in LNG Storage Tank


    Weitere Titelangaben:

    액화가스 화물창의 단열 시스템


    Beteiligte:
    PARK SEONG WOO (Autor:in) / KIM KWANG SEOK (Autor:in) / KIM JAE WOONG (Autor:in) / SHIN JUNG SUB (Autor:in) / KANG JOONG KYOO (Autor:in)

    Erscheinungsdatum :

    2017-05-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B65D Behältnisse zur Lagerung oder zum Transport von Gegenständen oder Materialien [Container], z.B. Säcke, Beutel, Fässer, Flaschen, Dosen, Kästen, Büchsen, Schachteln, Packkörbe, Tonnen, Gläser, Flüssigkeitsbehälter, Trichtersilos, Transportbehälter , CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS / 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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