The present invention relates to a gas treatment system for effectively supplying liquefied and/or boil-off gas to a demand from a liquefied gas storage tank. According to an embodiment of the present invention, the gas treatment system comprises: a boil-off gas compressor provided in a plurality of stages and compressing natural boil-off gas (NBOG) generated in a liquefied gas storage tank to supply to a propulsion engine and a power generation engine; a boosting pump for discharging the liquefied gas of the liquefied gas storage tank to the outside; a forced vaporizer for vaporizing the liquefied gas pressurized by the boosting pump to generate forced boil-off gas (FBOG); and a gas-liquid separator for delivering the FBOG to be joined to the NBOG after gas-liquid separation. The propulsion engine is a low-speed 2-stroke low-pressure gas injection engine. The FBOG gas-separated is joined to the NBOG downstream of the boil-off gas compressor and supplied to the propulsion engine. The boil-off gas compressor is configured to compress the NBOG in multiple stages in response to the required pressure of the propulsion engine, and the boil-off gas is branched to the propulsion engine and the power generation engine downstream of the point where the FBOG is joined to the NBOG.

    본 발명의 일 실시예에 따른 가스 처리 시스템은, 복수 단으로 마련되며 액화가스 저장탱크에서 발생한 자연발생증발가스(NBOG)를 다단 압축하여 추진엔진 및 발전엔진에 공급하는 증발가스 압축기; 상기 액화가스 저장탱크의 액화가스를 외부로 배출하는 부스팅 펌프; 상기 부스팅 펌프에 의해 가압된 액화가스를 기화시켜 강제발생증발가스(FBOG)를 생성하는 강제기화기; 및 상기 FBOG를 기액분리한 뒤 상기 NBOG에 합류되도록 전달하는 기액분리기를 포함하며, 상기 추진엔진은, 저속 2행정 저압가스분사엔진이며, 기액분리된 상기 FBOG는, 상기 증발가스 압축기 하류의 상기 NBOG에 합류되어 상기 추진엔진에 공급되고, 상기 증발가스 압축기는, 상기 추진엔진의 요구압력에 대응하여 NBOG를 다단 압축하며, 상기 NBOG에 상기 FBOG가 합류되는 지점의 하류에서 상기 추진엔진 및 상기 발전엔진으로 증발가스가 분기되도록 마련되는 것을 특징으로 한다.


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    Title :

    Gas Treatment System and Vessel having the same


    Additional title:

    가스 처리 시스템 및 이를 포함하는 선박


    Contributors:

    Publication date :

    2020-01-02


    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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