Disclosed is a vessel capable of providing improved boil-off gas (BOG) reliquefaction performance. According to the present invention, the vessel comprises: a first compressor to compress a part of BOG discharged from a storage tank; a second compressor to compress the remaining BOG not supplied to the first compressor among the BOG discharged from the storage tank; a first heat exchanger using the BOG discharged from the storage tank as a refrigerant to cool the BOG compressed by the first compressor through heat exchange; a second heat exchanger to additionally cool a fluid cooled by the first heat exchanger; a first decompression device to expand the fluid cooled by the second heat exchanger after being compressed by the second compressor and to return the expanded fluid to the second heat exchanger; a third compressor to compress the fluid, which is transferred to the second heat exchanger after being expanded by the first decompression device and is used as the refrigerant in the second heat exchanger; a second decompression device to expand the fluid, which is compressed by the first compressor after being cooled by the first heat exchanger and is additionally cooled by the second heat exchanger; and a bypass line bypassing the fluid cooled by the first heat exchanger from the second heat exchanger to transfer the bypassed fluid to the second decompression device. The second heat exchanger cools the fluid supplied after being cooled by the first heat exchanger and the BOG compressed by the second compressor through heat exchange by using the fluid expanded by the first decompression device as the refrigerant, and the second compressor has a pressure range lower than that of the first compressor.

    선박이 개시된다. 상기 선박은, 저장탱크로부터 배출되는 증발가스의 일부를 압축시키는 제1 압축기; 상기 저장탱크로부터 배출되는 증발가스 중 상기 제1 압축기로 보내지지 않은 나머지 증발가스를 압축시키는 제2 압축기; 상기 저장탱크로부터 배출되는 증발가스를 냉매로 사용하여, 상기 제1 압축기에 의해 압축된 증발가스를 열교환시켜 냉각시키는 제1 열교환기; 상기 제1 열교환기에 의해 냉각된 유체를 추가로 냉각시키는 제2 열교환기; 상기 제2 압축기에 의해 압축된 후 상기 제2 열교환기에 의해 냉각된 유체를 팽창시킨 후 다시 상기 제2 열교환기로 보내는 제1 감압장치; 상기 제1 감압장치에 의해 팽창된 후 다시 상기 제2 열교환기로 보내져, 상기 제2 열교환기에서 냉매로 사용된 유체를 압축시키는 제3 압축기; 상기 제1 압축기에 의해 압축되고 상기 제1 열교환기에 의해 냉각된 후 상기 제2 열교환기에 의해 추가로 냉각된 유체를 팽창시키는 제2 감압장치; 및 상기 제1 열교환기에 의해 냉각된 유체를 상기 제2 열교환기를 우회시켜 상기 제2 감압장치로 보내는 우회라인;을 포함하고, 상기 제2 열교환기는, 상기 제1 감압장치에 의해 팽창된 유체를 냉매로 사용하여, 상기 제1 열교환기에 의해 냉각된 후 공급된 유체와, 상기 제2 압축기에 의해 압축된 증발가스를 열교환시켜 냉각시키며, 상기 제2 압축기는 상기 제1 압축기보다 낮은 압력 범위를 가진다.


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    Titel :

    Vessel


    Weitere Titelangaben:

    선박


    Beteiligte:
    SON JAE WOOK (Autor:in) / CHOI DONG KYU (Autor:in) / SHIN HYUN JUN (Autor:in) / JANG HYUN MIN (Autor:in)

    Erscheinungsdatum :

    2018-08-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    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 / 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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