Disclosed is an evaporation gas reliquefaction system for a vessel, which reliquefies evaporation gas remaining after being used for an engine. The evaporation gas reliquefaction system for a vessel includes: a first compressor compressing the evaporation gas discharged from a storage tank; a second compressor additionally compressing the evaporation gas compressed by the first compressor; a first heat exchanger heat-exchanging and cooling a part of the evaporation gas compressed by the first compressor and the second compressor by using the evaporation gas discharged from the storage tank as a refrigerant; a first decompression device expanding a fluid cooled by the first heat exchanger after being compressed by the first compressor and the second compressor; a second heat exchanger heat-exchanging and cooling the rest of the evaporation gas compressed by the first compressor and the second compressor by using the fluid expanded by the first decompression device as the refrigerant; and a second decompression device expanding the rest of the evaporation gas compressed by the first compressor and the second compressor, which is cooled by the second heat exchanger. The part of the evaporation gas discharged from the storage tank is transferred to a rear end of the first decompression device along a bypass line after the evaporation gas passes through the first exchanger. The rest of the evaporation gas is transferred to the first compressor. The evaporation gas transferred to the rear end of the first decompression device along the bypass line after passing through the first heat exchanger is joined with the fluid expanded by the first decompression device and is used as the refrigerant in the second heat exchanger.

    엔진에 사용되고 남은 잉여 증발가스를 재액화시키는, 선박용 증발가스 재액화 시스템이 개시된다. 상기 선박용 증발가스 재액화 시스템은, 저장탱크로부터 배출된 증발가스를 압축시키는 제1 압축기; 상기 제1 압축기에 의해 압축된 증발가스를 추가적으로 압축시키는 제2 압축기; 상기 저장탱크로부터 배출된 증발가스를 냉매로, '상기 제1 압축기 및 상기 제2 압축기에 의해 압축된 증발가스의 일부'를 열교환시켜 냉각시키는 제1 열교환기; 상기 제1 압축기 및 상기 제2 압축기에 의해 압축된 후 상기 제1 열교환기에 의해 냉각된 유체를 팽창시키는 제1 감압장치; 상기 제1 감압장치에 의해 팽창된 유체를 냉매로, '상기 제1 압축기 및 상기 제2 압축기에 의해 압축된 증발가스의 나머지 일부'를 열교환시켜 냉각시키는 제2 열교환기; 및 상기 제2 열교환기에 의해 냉각된 '상기 제1 압축기 및 상기 제2 압축기에 의해 압축된 증발가스의 나머지 일부'를 팽창시키는 제2 감압장치;를 포함하고, 상기 저장탱크로부터 배출된 증발가스는 상기 제1 열교환기를 통과한 후, 일부는 우회라인을 따라 상기 제1 감압장치 후단으로 보내지고, 나머지는 상기 제1 압축기로 보내지고, 상기 제1 열교환기를 통과한 후 상기 우회라인을 따라 상기 제1 감압장치 후단으로 보내진 증발가스는, 상기 제1 감압장치에 의해 팽창된 유체와 합류되어 상기 제2 열교환기에서 냉매로 사용된다.


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    Title :

    BOG Reliquefaction System and Method for Vessel


    Additional title:

    선박용 증발가스 재액화 시스템 및 방법


    Contributors:

    Publication date :

    2017-08-11


    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 / 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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