The present invention relates to a cooldown system of a cargo tank in an offshore structure and a method thereof, and more particularly, to a cooldown system and a method of a cargo tank in an offshore structure, in which liquefied gas in an end flash drum is pressurized at a predetermined pressure before liquefied gas is loading and liquefied gas is supplied to a first cooldown line through a second cooldown line to cool down the cargo tank. The cool down method comprises the steps of: liquefying gas produced in a gas well by using a gas liquefaction device and supplying liquefied gas into the end flash drum; separating and exhausting boiled gas in the end flash drum; supplying gas for pressurization into the end flash drum to pressurize liquefied gas at a predetermined pressure; detecting whether the pressure in the end flash drum is raised to a preset pressure; and supplying the pressurized liquefied gas in the end flash drum to the first cooldown line through the second cooldown line when the pressure in the end flash drum is raised to the preset pressure, to cool down the cargo tank.

    본 발명의 해상 구조물의 카고 탱크 쿨 다운 방법은 가스 정에서 생산한 가스를 액화가스장치를 이용하여 액화하고, 그 액화가스를 엔드 플래시 드럼 안에 공급하는 단계; 상기 엔드 플래시 드럼 안의 보일 가스를 분리하고 배기하는 단계; 상기 엔드 플래시 드럼 안에 가압용 가스를 공급하여 액화가스를 일정 압력으로 가압하는 단계; 상기 엔드 플래시 드럼 안의 압력이 기 설정 압력으로 상승했는 지를 감지하는 단계; 상기 엔드 플래시 드럼 안의 압력이 기 설정 압력으로 상승했을 경우, 제2 쿨 다운 라인을 통해서 상기 엔드 플래시 드럼 안의 가압한 액화가스를 제1 쿨 다운 라인으로 공급하여 카고 탱크를 쿨 다운하는 단계;를 포함한다.


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    Titel :

    COOL DOWN SYSTEM AND METHOD OF CARGO TANK IN OFFSHORE STRUCTURE


    Weitere Titelangaben:

    해상 구조물의 카고 탱크 쿨 다운 시스템 및 방법


    Beteiligte:
    YOON SANG DEUK (Autor:in) / KIM JONG GYU (Autor:in)

    Erscheinungsdatum :

    2015-06-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    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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