선박의 연료가스 관리시스템이 개시된다. 본 실시 예에 의한 선박의 연료가스 관리시스템은 액화가스 및 증발가스를 수용하는 저장탱크, 저장탱크의 증발가스를 가압하는 제1 압축부가 마련되고, 제1 압축부에 의해 가압된 증발가스를 수요처로 공급하는 증발가스 공급라인 및 제1 압축부에 의해 가압된 증발가스의 일부를 공급받아 재액화시키는 재액화라인을 포함하고, 재액화라인은 유입되는 증발가스를 추가적으로 가압하는 제2 압축부와, 제2 압축부에 의해 추가 가압된 증발가스를 증발가스 공급라인 상의 제1 압축부 전단의 증발가스와 열교환하여 냉각시키는 열교환기와, 열교환기에 의해 냉각된 증발가스를 수용하되 기체성분 및 액체성분으로 분리하는 제1 기액분리기와, 제1 기액분리기의 기체성분을 이송시키는 기체성분 순환라인과, 기체성분 순환라인에 마련되어 제1 기액분리기의 기체성분을 감압시키는 팽창부와, 팽창부를 통과하면서 발생하는 액적의 유량을 조절하도록 제2 압축부에 의해 추가 가압된 증발가스의 일부를 열교환기 및 제1 기액분리기를 우회하여 팽창부의 전단 측으로 직접 공급하는 액화조절라인을 포함하여 제공될 수 있다.

    Disclosed is a fuel gas treating system for a ship capable of increasing reliquefaction efficiency. The fuel gas treating system for a ship according to the embodiment comprises: a storage tank for storing liquefied gas and boil-off gas; a boil-off gas supply line that has a first compression part for pressurizing the boil-off gas of the storage tank and supplies the boil-off gas pressurized by the first compression part to a consumed site; and a reliquefaction line for reliquefying a part of boil-off gas pressurized by the first compression part. The reliquefaction line comprises: a second compression part for additionally pressurizing the introduced boil-off gas; a heat exchanger for heat-exchanging the boil-off gas additionally pressurized by the second compression part with the boil-off gas in the front end of the first compression part on the boil-off gas supply line; a first gas-liquid separator that receives the boil-off gas cooled by the heat exchanger and separates the boil-off gas into a gas component and a liquid component; a gas component circulation line for transferring the gas component of the first gas-liquid separator; an expansion part arranged in the gas component circulation line to depressurize the gas component of the first gas-liquid separator; and a liquefaction control line for allowing a part of the boil-off gas additionally depressurized by the second compression part to bypass the heat exchanger and the first gas-liquid separator and then to be directly supplied to the front end of the expansion part so as to control a flow rate of droplets generated while passing through the expansion part.


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    Title :

    FUEL GAS TREATING SYSTEM IN SHIPS


    Additional title:

    선박의 연료가스 관리시스템


    Publication date :

    2023-04-03


    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 / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / 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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