Disclosed are a boil-off gas treatment system and a method for a ship. According to the present invention, the boil-off gas treatment system for a ship comprises: a compressor which receives boil-off gas generated from liquefied gas stored in a storage tank of the ship, and compresses the gas by a fuel supply pressure of a main engine in the ship; a heat exchanger which receives boil-off gas, which has not been supplied to the main engine, among the boil-off gas compressed by the compressor, and cools the boil-off gas by exchanging heat with the uncompressed boil-off gas to be supplied to the compressor; a first pressure-reducing apparatus which reduces the pressure of the boil-off gas cooled by the heat exchanger; a first gas-liquid separator which receives the boil-off gas with pressure reduced by the first pressure-reducing apparatus, and separates gas from liquid; a fuel supply line which is connected to a power generation engine receiving fuel with a lower pressure than that of the main engine, from the first gas-liquid separator through the heat exchanger; and a fuel expansion means which is placed in the fuel supply line to expand the fuel to be supplied to the power generation engine by the pressure of fuel supply of the power generation engine. The internal pressure of the first gas-liquid separator is kept to be higher than the fuel supply pressure of the power generation engine. The flash gas separated by the first gas-liquid separator is supplied as fuel for the power generation engine through the fuel expansion means and the heat exchanger. The boil-off gas treatment system can increase the cooling performance of the heat exchanger.

    선박의 증발가스 처리 시스템 및 방법이 개시된다. 본 발명의 선박의 증발가스 처리 시스템은, 선박의 저장탱크에 저장된 액화가스로부터 발생하는 증발가스를 공급받아 선내 주엔진의 연료공급압력으로 압축하는 압축기; 상기 압축기에서 압축된 상기 증발가스 중 상기 주엔진으로 공급되지 않은 증발가스를 공급받아, 상기 압축기로 공급될 미압축 증발가스와 열교환으로 냉각시키는 열교환기; 상기 열교환기에서 냉각된 상기 증발가스를 감압하는 제1 감압장치; 상기 제1 감압장치에서 감압된 상기 증발가스를 공급받아 기액분리하는 제1 기액분리기; 상기 제1 기액분리기로부터 상기 열교환기를 거쳐 상기 주엔진보다 저압연료를 공급받는 발전엔진으로 연결되는 연료공급라인; 및 상기 연료공급라인에 마련되며 상기 발전엔진으로 공급될 연료를 상기 발전엔진의 연료공급압력으로 팽창시키는 연료 팽창수단;을 포함하며, 상기 제1 기액분리기의 내압은 상기 발전엔진의 연료공급압력보다 높게 유지되고, 제1 기액분리기에서 분리된 플래시 가스는 상기 연료 팽창수단 및 열교환기를 거쳐 상기 발전엔진의 연료로 공급되는 것을 특징으로 한다.


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    Titel :

    Boil-Off Gas Treatment System and Method for Ship


    Weitere Titelangaben:

    선박의 증발가스 처리 시스템 및 방법


    Beteiligte:
    KWAK IN JUNG (Autor:in) / RYU MIN CHEOL (Autor:in) / CHOI WON JAE (Autor:in) / CHOI JIN HO (Autor:in) / PARK JU WOON (Autor:in) / LEE JOON CHAE (Autor:in)

    Erscheinungsdatum :

    2020-12-30


    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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