Disclosed is a boil-off gas reliquefaction system for a ship. According to the present invention, the boil-off gas reliquefaction system for a ship can comprise: a compression unit including a first compressor receiving and compressing boil-off gas generated from liquefied gas of a cargo tank arranged in the ship, and a second compressor additionally compressing the boil-off gas compressed in the first compressor, and compressing the boil-off gas in multiple stages; an intercooler receiving the boil-off gas compressed in the first compressor, and cooling the boil-off gas, and supplying the boil-off gas to the second compressor; a condenser cooling the boil-off gas compressed through the compression unit; a reliquefaction gas recollection line recollecting chill from the reliquefied gas cooled and condensed in the condenser through the intercooler, and transporting the liquefied gas to the cargo tank; and a first temperature control line branching the liquefied gas in the reliquefaction gas recollection line, and injecting the liquefied gas to the upper side of the intercooler. Therefore, the reliquefaction rate can be increased.

    선박의 증발가스 재액화시스템이 개시된다. 본 발명의 선박의 증발가스 재액화시스템은, 선박에 마련된 카고탱크의 액화가스로부터 발생하는 증발가스를 공급받아 압축하는 제1 압축기 및 상기 제1 압축기에서 압축된 증발가스를 추가 압축하는 제2 압축기를 포함하며, 증발가스를 다단 압축하는 압축부; 상기 제1 압축기에서 압축된 증발가스를 공급받아 냉각 후 상기 제2 압축기로 공급하는 인터쿨러; 상기 압축부를 거쳐 압축된 증발가스를 냉각하는 응축기; 상기 응축기에서 냉각되어 응축된 액화가스를 상기 인터쿨러를 거쳐 냉열 회수 후 상기 카고탱크로 이송하는 재액가스회수라인; 및 상기 재액가스회수라인에서 액화가스를 분기하여 상기 인터쿨러 상부로 분사하는 제1 온도조절라인:을 포함할 수 있다.


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    Title :

    Boil-Off Gas Reliquefaction System For Ship


    Additional title:

    선박의 증발가스 재액화시스템


    Contributors:

    Publication date :

    2023-12-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / F25J LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT , Verflüssigen, Verfestigen oder Trennen von Gasen oder Gasgemischen durch Druck- und Kältebehandlung



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