A boil-off gas recovery system capable of suppressing performance deterioration of a heat exchanger in a boil-off gas re-liquefying system is provided. A boil-off gas recovery system (1) includes a tank (2) where a liquefied gas (100) is stored, a reciprocating compressor (3b) to which lubricating oil is supplied, the compressor compressing a boil-off gas (100A) generated by vaporization of part of the liquefied gas in the tank, a separator (14) that separates the lubricating oil contained in the boil-off gas which is discharged from the compressor (3b), an activated carbon filter (70) that absorbs the lubricant oil contained in the boil-off gas passing the first separator (14), and a re-liquefying system (9) having a heat exchanger that cools the boil-off gas from which the lubricating oil is already separated by the separator by heat exchange with the boil-off gas supplied to the compressor (3b) from the tank (2), where the liquefied boil-off gas is returned to the tank.

    [과제] 보일오프 가스의 재액화 시스템에 있어서의 열교환기의 성능 저하를 억제하는 것이 가능한 보일오프 가스 회수 시스템을 제공한다. [해결 수단] 보일오프 가스 회수 시스템(1)은, 액화 가스(100)를 저장한 탱크(2)와, 윤활유가 공급됨과 함께, 탱크(2) 내의 액화 가스(100)의 일부의 증발에 의하여 발생한 보일오프 가스(100A)를 압축하는 왕복동식의 압축기(3b)와, 압축기(3b)로부터 토출된 보일오프 가스에 포함되는 윤활유를 분리하는 제1 세퍼레이터(14)와, 제1 세퍼레이터(14)를 통과한 보일오프 가스에 포함되는 윤활유를 흡착시키는 활성탄 필터(70)와, 활성탄 필터(70)를 통과한 보일오프 가스를, 탱크(2)로부터 압축기(3b)에 공급되는 보일오프 가스와의 열교환에 의하여 냉각하는 열교환기를 갖고, 액화된 보일오프 가스를 탱크(2)로 복귀시키는 재액화 시스템(9)을 구비하고 있다.


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    Title :

    BOIL-OFF GAS RECOVERY SYSTEM


    Additional title:

    보일오프 가스 회수 시스템


    Contributors:

    Publication date :

    2018-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / 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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