Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG discharged from a storage tank as a refrigerant; a bypass line through which the BOG is supplied to the compressor after bypassing the heat exchanger; a second valve disposed on a second supply line through which the BOG used as the refrigerant in the heat exchanger is supplied to the compressor, the second valve regulating a flow rate of fluid and opening/closing of the second supply line; and a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger, wherein the compressor includes at least one oil-lubrication type cylinder and the bypass line is joined to the second supply line downstream of the second valve.


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    Title :

    Boil-off gas reliquefication system, method for discharging lubricating oil in boil-off gas reliquefication system, and engine fuel supply method


    Contributors:

    Publication date :

    2022-10-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / 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





    BOIL-OFF GAS RELIQUEFACTION SYSTEM, METHOD FOR DISCHARGING LUBRICATING OIL IN BOIL-OFF GAS RELIQUEFACTION SYSTEM, AND ENGINE FUEL SUPPLY METHOD

    LEE JOON CHAE / CHOI DONG KYU / PARK CHEONG GI et al. | European Patent Office | 2019

    Free access


    BOIL-OFF GAS RELIQUEFACTION SYSTEM AND METHOD FOR DISCHARGING LUBRICATING OIL IN BOIL-OFF GAS RELIQUEFACTION SYSTEM

    LEE JOON CHAE / CHOI DONG KYU / CHOI WON JAE et al. | European Patent Office | 2021

    Free access