The present invention relates to a fuel supply system for a ship and a method thereof, which are able to prevent the generation volume of boil-off gas in a storage tank from increasing when maintaining the minimum flow rate of a fuel supply pump. According to the present invention, the fuel supply method for a ship comprises: a step of compressing boil-off gas or forced vaporized gas from liquefied gas and supplying the gas as fuel for an engine; and a step of reliquefying the gas fuel exceeding the required fuel volume of the engine and recollecting the reliquefied gas to a liquefied gas storage tank. The step of supplying the forced vaporized gas as fuel for the engine includes: a step of discharging liquefied gas from the liquefied gas storage tank; and a step of gasifying the discharged liquefied gas. When the engine requires gas fuel less than the operating range of the pump discharging the liquefied gas, the pump is not operated, and the reliquefied boil-off gas is vaporized and supplied to the engine.

    본 발명은 연료 공급펌프의 최소 유량을 유지하기 위하여 저장탱크 내 증발가스 발생량이 증가하는 문제를 방지할 수 있는 선박의 연료 공급 시스템 및 방법에 관한 것이다. 본 발명에 따른 선박의 연료 공급 방법은, 액화가스의 증발가스 또는 강제기화가스를 압축하여 엔진의 연료로 공급하고, 상기 엔진에서 요구하는 연료량을 초과하는 양만큼의 가스 연료는 재액화시켜 액화가스 저장탱크로 회수하되, 상기 강제기화가스를 엔진의 연료로 공급하는 것은, 상기 액화가스 저장탱크로부터 액화가스를 배출시키고, 상기 배출된 액화가스를 기화시키는 것을 포함하며, 상기 엔진에서 상기 액화가스를 배출시키는 펌프 운전 범위 미만의 가스 연료를 요구하는 경우에는, 상기 펌프를 가동하지 않고, 상기 재액화된 증발가스를 기화시켜 엔진으로 공급한다.


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    Title :

    Fuel Supply System and Method for Ships


    Additional title:

    선박의 연료 공급 시스템 및 방법


    Contributors:

    Publication date :

    2023-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    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 / 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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