The present invention relates to a gasification apparatus which gasifies liquid fuel in a liquefied natural gas (LNG) propulsion ship and supplies the gasified liquid fuel to an engine or a gasification apparatus which gasifies LNG in an LNG storage tank and supplies the gasified LNG to a supply line, capable of distancing the LNG from a medium fluid, which can be condensed or frozen in a heat exchanger, in a space, so that there occurs no overcooling phenomenon from excessive cooling, an operation disorder or a flow rate change of a machine, or the like. According to the present invention, the gasification apparatus for LNG comprises: a first heat exchanger made of a printed circuit board-type heat exchanger (PCHE), and including an LNG gasification unit, into which the LNG supplied from an LNG storage tank is introduced to be gasified into NG and discharged, and a nitrogen cooling unit arranged to perform the indirect heat exchange with the LNG gasification unit and cooling and discharging the nitrogen of an air pressure value of 10 supplied from a nitrogen storage tank; and a second heat exchanger made of a PCHE connected to the first heat exchanger from a distance, and including an antifreeze solution cooling unit cooling and discharging an antifreeze solution supplied from an antifreeze solution storage tank and a medium fluid heating unit arranged to perform the indirect heat exchange with the antifreeze solution cooling unit and heating and discharging a medium fluid supplied from a medium fluid storage tank.

    본 발명은 액화천연가스(LNG)추진선에서 액체연료를 기화하여 엔진에 공급하는 기화장치 또는 LNG저장탱크에서 LNG를 기화하여 공급라인에 공급하는 기화장치로서, LNG의 기화열을 냉열원으로 사용할 수 있음은 물론, LNG와 열교환기 내부에서 응결 또는 결빙될 수 있는 매개유체를 공간 상에서 거리를 두게 함으로써 과도한 냉각, 기계의 작동이상 또는 유량변동 등에 의한 과냉각 현상이 발생하지 않도록 하는 액화천연가스의 기화장치에 관한 것으로, 본 발명의 구성은, 인쇄회로기판형 열교환기(PCHE)로 이루어지고, 액화천연가스(LNG)저장탱크에서 공급된 LNG가 유입되어 NG로 기화를 이루어 토출되는 LNG기화부를 구비하고, 상기 LNG기화부와 간접 열교환을 이루도록 구비되어 질소저장탱크로부터 10기압의 질소가 공급되어 냉각된 다음 토출되는 질소냉각부를 포함하는 제1열교환기; 및 상기 제1열교환기와 이격된 위치에서 상호 연결을 이루는 PCHE로 이루어지고, 부동액저장탱크로부터 공급된 부동액이 냉각된 다음 토출되는 부동액냉각부를 구비하고, 상기 부동액냉각부와 간접 열교환을 이루도록 구비되어 매개유체저장탱크로부터 공급된 매개유체가 가열된 다음 토출되는 매개유체가열부를 포함하는 제2열교환기;를 포함한다.


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    Title :

    Gasification device for liquefied natural gas


    Additional title:

    액화천연가스의 기화장치


    Contributors:
    JANG JIN SUK (author) / HWANG IN KI (author)

    Publication date :

    2023-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON 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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