본 발명은 액화가스 화물창 및 그 액화가스 화물창을 구비하는 운반선에 관한 것으로, 내부 저장공간의 상부 양측에 형성되는 가스 포켓 부의 가스(vapor)를 외부로 배출하기 위하여 상기 멤브레인 방벽을 관통하여 가스 관통배관이 설치됨으로써, 멤브레인 타입 LNG 운반선에서 화물창 내의 운반선 화물 적재 레벨(LGC filling level)을 국제 액화가스 운송선의 구조 및 설비규칙에서 허용하는 최대 화물적재 한계를 99.5%(max. filling limit)까지 끌어올려 화물 적재능력을 최대화할 수 있음은 물론 베이퍼 포켓 형성시 화물창 온도증가에 따라, 화물의 부피증가에 베이퍼 포켓의 부피증가가 더해지게 되어 가스 돔 상부의 화물 레벨이 설계치 이상 올라가 결국, 가스 라인에 액체화물이 침입할 수 있는 위험을 효과적으로 방지할 수 있다.

    The present invention relates to a liquefied gas cargo tank and a carrier having the same. A gas penetration pipe is installed to penetrate a membrane barrier to discharge vapor in gas pocket units, formed on both lateral sides of an upper portion of an inner storage space, to the outside. A carrier cargo loading level (LGC filling level) in a cargo tank in a membrane-type LNG carrier is increased up to 99.5% (max. filling limit) of the maximum cargo loading limit which is allowed by structure and facilities regulations of an international liquefied gas carrier. Accordingly, capacity of cargo loading can be maximized. In addition, as temperature of the cargo tank is increased when a vapor pocket is formed, an increase in the volume of the vapor pocket is added to an increase in the volume of cargo. Consequently, a cargo level of an upper portion of a gas dome is increased to a designed level or higher. As a result, risk that liquid cargo permeates into a gas line can be effectively prevented.


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    Title :

    LIQUEFIED GAS CARGO TANK AND CARRIER WITH THE CARGO TANK


    Additional title:

    액화가스 화물창 및 그 액화가스 화물창을 구비하는 운반선


    Publication date :

    2022-01-07


    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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