Provided is a fuel supply system for a liquefied gas fueled vessel, capable of supplying corresponding fuel to combustion engines having different fuel requirements. According to one embodiment of the present invention, the fuel supply system for a liquefied gas fueled vessel comprises: a fuel tank storing liquefied gas; a first liquefied gas supply line compressing and heating the liquefied gas supplied from the fuel tank at a first temperature to supply the liquefied gas to a first combustion engine; a first heater installed in the first liquefied gas supply line to heat the liquefied gas at the first temperature; a second liquefied gas supply line connected to the first liquefied gas supply line in parallel to heat the compressed liquefied gas at a second temperature higher than the first temperature and joined to the first liquefied gas supply line of the rear end of the first heater; a second heater installed in the second liquefied gas supply line to heat the liquefied gas at the second temperature; a boil-off gas supply line supplying a second combustion engine with boil-off gas generated by being evaporated in the fuel tank; a liquefied gas decompression line branched from the second liquefied gas supply line of the rear end of the second heater and including a first decompression valve decompressing the liquefied gas passing through the second heater; a gas-liquid separator connected to the liquefied gas decompression line to separate liquid gas and gaseous gas; a liquefied gas collection line connecting the gas-liquid separator with the fuel tank to supply the liquid gas to the fuel tank; and a boil-off gas collection line connecting the gas-liquid separator with the boil-off gas supply line to supply the gaseous gas to either or both of the fuel tank and the second combustion engine.

    본 발명의 일 실시예에 의해 액화가스 연료 선박의 연료 공급 시스템 가 제공된다. 본 발명의 일 실시예에 따른 액화가스 연료 선박의 연료 공급 시스템은, 액화가스가 저장된 연료탱크와, 연료탱크로부터 공급받은 액화가스를 가압하고 제1 온도로 가열하여 제1 연소기관으로 공급하는 제1 액화가스공급라인과, 제1 액화가스공급라인에 설치되어 액화가스를 제1 온도로 가열하는 제1 히터와, 제1 액화가스공급라인과 병렬로 연결되어 가압된 액화가스를 제1 온도보다 높은 제2 온도로 가열하며, 제1 히터 후단의 제1 액화가스공급라인에 합류되는 제2 액화가스공급라인과, 제2 액화가스공급라인에 설치되어 액화가스를 제2 온도로 가열하는 제2 히터와, 연료탱크 내부에서 액화가스가 기화하여 생성된 증발가스를 제2 연소기관으로 공급하는 증발가스공급라인과, 제2 히터 후단의 제2 액화가스공급라인에서 분기되며, 제2 히터를 통과한 액화가스를 감압하는 제1 감압밸브가 설치된 액화가스감압라인과, 액화가스감압라인과 연결되어 액상의 가스와 기상의 가스로 분리하는 기액분리기와, 기액분리기와 연료탱크를 연결하여 액상의 가스를 연료탱크로 공급하는 액화가스회수라인, 및 기액분리기와 증발가스공급라인을 연결하여 기상의 가스를 연료탱크와 제2 연소기관 중 적어도 하나에 공급하는 증발가스회수라인을 포함할 수 있다.


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    Title :

    Fuel supply system for liquefied gas fueled vessel


    Additional title:

    액화가스 연료 선박의 연료 공급 시스템


    Contributors:

    Publication date :

    2019-05-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / 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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