Disclosed is a system for re-liquefying boil off gas for a ship. The system for re-liquefying boil off gas for a ship includes: a compressor compressing boil off gas in multiple layers; a heat exchanger using the boil off gas before being compressed by the compressor as a refrigerant and cooling the boil off gas compressed by the compressor by heat-exchanging the same; and a decompressing device decompressing fluid cooled by the heat exchanger, wherein the compressor includes: a plurality of cylinders compressing the boil off gas; a plurality of coolers respectively installed on a downstream portion of the plurality of cylinders and lowering temperature of the boil off gas; and a first oil separator installed between the cylinder of the last layer and the cooler of the last layer of the multilayer compressor and filtering lubricating oil mixed in the boil off gas.

    선박용 증발가스 재액화 시스템이 개시된다. 상기 선박용 증발가스 재액화 시스템은, 증발가스를 다단계로 압축시키는 압축기; 상기 압축기에 의해 압축되기 전의 증발가스를 냉매로 사용하여, 상기 압축기에 의해 압축된 증발가스를 열교환시켜 냉각시키는 열교환기; 및 상기 열교환기에 의해 냉각된 유체를 감압시키는 감압장치;를 포함하고, 상기 압축기는, 증발가스를 압축시키는 다수개의 실린더; 상기 다수개의 실린더 하류에 각각 설치되어 증발가스의 온도를 낮추는 다수개의 냉각기; 및 상기 다단압축기의 마지막 단의 실린더와 마지막 단의 냉각기 사이에 설치되어 증발가스에 섞인 윤활유를 걸러내는 제1 오일분리기;를 포함한다.


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    Title :

    BOG Reliquefaction System and Method for Vessels


    Additional title:

    선박용 증발가스 재액화 시스템 및 방법


    Contributors:
    HAN JAE SIG (author) / CHOI WON JAE (author) / LEE SEUNG CHUL (author) / JANG HYUN MIN (author)

    Publication date :

    2019-11-13


    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 / 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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