The present invention relates to a vessel fuel oil switching method, capable of stably switching fuel oil even when fuel oil inflow speeds are different due to a water level difference of a fuel oil storage tank, and a system thereof. According to the present invention, in the vessel fuel oil switching method, which is to switch fuel for an engine from first fuel oil to second fuel oil, a second control valve supplying the second fuel oil to the engine is opened throughout a predetermined time, and a first control valve supplying the first fuel oil to the engine is closed throughout the predetermined time to switch the fuel oil. In regard to an opening speed for the second control valve and a closing speed for the first control valve, the temperature of the fuel oil supplied to the engine is measured. Thus, if a temperature difference between a current temperature measurement value and a reference temperature measurement value is a first temperature difference, the valves are controlled at a first speed, and, if a temperature difference between the current temperature measurement value and the reference temperature measurement value is a second temperature difference, the valves are controlled at a second speed. Therefore, the mixture ratio of the first fuel oil and the second fuel oil can be controlled regardless of the water level of a first storage tank storing the first fuel oil and the water level of a second storage tank storing the second fuel oil.

    본 발명은, 연료유 전환 시 연료유 저장탱크의 수위 차로 인하여 연료유 유입 속도가 다른 경우에도 안정적으로 연료유를 전환할 수 있는, 선박용 연료유 전환 방법 및 시스템에 관한 것이다. 본 발명에 따른 선박용 연료유 전환 방법은, 제1 연료유를 엔진의 연료로 사용하다가 제2 연료유로 연료를 전환하는 선박용 연료유 전환 방법에 있어서, 상기 제2 연료유를 엔진으로 공급하는 제2 조절밸브를 일정 시간에 걸쳐 개방하고, 제1 연료유를 엔진으로 공급하는 제1 조절밸브를 일정 시간에 걸쳐 폐쇄하여, 연료유를 전환하며, 상기 제2 조절밸브의 개방 속도 및 제1 조절밸브의 폐쇄 속도는, 상기 엔진으로 공급하는 연료유의 온도를 측정하여, 현재 온도 측정값과 기준 온도 측정값의 온도차가 제1 온도차인 경우에는 제1 속도로 제어하고, 현재 온도 측정값과 기준 온도 측정값의 온도차가 제2 온도차인 경우에는 제2 속도로 제어함으로써, 상기 제1 연료유를 저장하는 제1 저장탱크의 수위와 제2 연료유를 저장하는 제2 저장탱크의 수위에 관계없이, 제1 연료유와 제2 연료유의 혼합 비율을 제어할 수 있다.


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    Title :

    Fuel Oil Change Over Method and System for Vessel


    Additional title:

    선박용 연료유 전환 방법 및 시스템


    Contributors:

    Publication date :

    2020-05-08


    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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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