The present invention relates to a boil-off gas reliquefaction system and a vessel including the same. The boil-off gas reliquefaction system comprises: a liquefied gas storage tank; and a reliquefaction apparatus liquefying boil-off gas produced from the liquefied gas storage tank with a phase-changing refrigerant. The reliquefaction apparatus includes: a refrigerant compressor in which lubricant can be mixed with the refrigerant during compression; a refrigerant cooler cooling the compressed refrigerant; a liquefier exchanging heat between the refrigerant and the boil-off gas; and a decompression valve decompressing the refrigerant, which has exchanged heat with the boil-off gas through the liquefier, and then returning the same to the liquefier. The apparatus also includes a lubricant treatment part treating the lubricant mixed with the refrigerant in the reliquefaction apparatus. The lubricant treatment part includes: a filter part removing the solidus lubricant from the refrigerant decompressed by the decompression valve; and a filter regeneration part removing the lubricant accumulated in the filter part by applying pulsations to the filter part through opening adjustment. Therefore, the present invention is capable of reducing OPEX or the like by preventing a deterioration in the efficiency of reliquefaction.

    본 발명은 증발가스 재액화 시스템 및 이를 포함하는 선박에 관한 것으로서, 액화가스 저장탱크; 및 액화가스 저장탱크에서 발생한 증발가스를 상변화하는 냉매로 액화하는 재액화장치를 포함하며, 상기 재액화장치는, 압축 시 냉매에 윤활유가 혼입될 수 있는 냉매 압축기; 압축된 냉매를 냉각하는 냉매 쿨러; 냉매와 증발가스를 열교환하는 액화기; 및 상기 액화기에서 증발가스와 열교환한 냉매를 감압 후 상기 액화기로 리턴하는 감압밸브를 포함하며, 상기 재액화장치에서 냉매에 혼입되는 윤활유를 처리하는 윤활유 처리부를 더 포함하고, 상기 윤활유 처리부는, 상기 감압밸브에서 감압된 냉매 중 고상의 윤활유를 제거하는 필터부; 및 개도 조절을 통해 상기 필터부에 맥동을 부여하여 상기 필터부에 누적된 윤활유를 제거하는 필터 재생부를 포함하는 것을 특징으로 한다.


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    Titel :

    liquefaction system of boil-off gas and ship having the same


    Weitere Titelangaben:

    증발가스 재액화 시스템 및 이를 포함하는 선박


    Beteiligte:
    HAN JAE SIG (Autor:in) / HAN SANG HO (Autor:in)

    Erscheinungsdatum :

    2021-03-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    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



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