Disclosed is a boil-off gas re-liquefaction system. The system comprises: a compressor compressing boil-off gas; a heat exchanger cooling the boil-off gas compressed by the compressor by performing heat exchange between boil-off gas which has not been compressed by the compressor and a refrigerant; a bypass line allowing the boil-off gas to bypass the heat exchanger to supply the boil-off gas to the compressor; a second valve installed on a second supply line for transferring the boil-off gas which have been used as a refrigerant in the heat exchanger to the compressor so as to control a flow rate of a fluid and opening and closing; and a decompression device installed at the rear end of the heat exchanger and decompressing the fluid cooled by the heat exchanger. The compressor includes at least one oil-feeding cylinder, and the bypass line is joined to the second supply line at the rear end of the second valve.

    증발가스 재액화 시스템이 개시된다. 상기 증발가스 재액화 시스템은, 증발가스를 압축시키는 압축기; 상기 압축기에 의해 압축된 증발가스를 상기 압축기에 의해 압축되기 전의 증발가스를 냉매로 열교환시켜 냉각시키는 열교환기; 증발가스를 상기 열교환기를 우회시켜 상기 압축기로 공급하는 우회라인; 상기 열교환기에서 냉매로 사용된 증발가스를 상기 압축기로 보내는 제2 공급라인 상에 설치되어 유체의 유량 및 개폐를 조절하는 제2 밸브; 및 상기 열교환기 후단에 설치되어, 상기 열교환기에 의해 냉각된 유체를 감압시키는 감압장치;를 포함하고, 상기 압축기는 급유식 실린더를 적어도 한 개 포함하고, 상기 우회라인은, 상기 제2 밸브 후단의 상기 제2 공급라인으로 합류된다.


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    Title :

    Boil-Off Gas Reliquefaction System and Method of Discharging Lubrication Oil in the Same


    Additional title:

    증발가스 재액화 시스템 및 증발가스 재액화 시스템 내의 윤활유 배출 방법


    Contributors:

    Publication date :

    2019-01-14


    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 / 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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