Disclosed is a reliquefaction system capable of performing a reliquefaction process by equipment of a line installed in one integrated system in accordance with the kind of liquefied gas stored in a storage tank of a vessel. According to one embodiment of the present invention, the reliquefaction system comprises: a compression unit connected to a storage tank storing liquefied gas and BOG of the liquefied gas through a supply line, having a compressor and a first cooler alternatively disposed on the supply line, and receiving and compressing a gaseous fluid including the BOG at a first pressure; a heat exchanger connected to the front end of the compression unit by the supply line and connected to the rear end of the compression unit by a reliquefaction line to perform heat exchange between the gaseous fluid and the fluid compressed by the compression unit; a first branch line having a second cooler disposed therein, branched from a set position of the compression unit of the supply line to be connected to the reliquefaction line, and sending the fluid, which is compressed at a second pressure, which is less than the first pressure, by a compressor of the compression unit, to a heat exchange unit of the reliquefaction line; a connection line to bypass the first cooler and to interconnect only a predetermined number of compressors of the compression unit; and a second branch line branched from a set position of the compression unit of the supply line to be connected to the first branch line, and sending the fluid, which is compressed at a third pressure, which is less than the second pressure, through the compressor disposed in the connect line, to the second cooler, wherein the fluid selectively flows through the supply line, the connection line, the first branch line, or the second branch line in accordance with the kind of liquefied gas stored in the storage tank.

    재액화 시스템이 개시된다. 본 발명의 실시 예에 의한 재액화 시스템은 액화가스 및 액화가스의 증발가스를 저장하는 저장탱크와 공급라인으로 연결되며, 공급라인 상에 압축기와 제1냉각기가 교대로 배치되며, 증발가스를 포함하는 기상의 유체를 공급받아 제1압력으로 압축시키는 압축부; 공급라인에 의해 압축부 전단과 연결되고 재액화라인에 의해 압축부 후단과 연결되며, 기상의 유체와 압축부에 의해 압축된 유체 간 열교환을 수행하는 열교환부; 제2냉각기가 배치되고, 공급라인의 압축부의 설정된 지점으로부터 분기되어 재액화라인과 연결되며, 압축부의 압축기에 의해 제1압력보다 낮은 제2압력으로 압축된 유체를 재액화라인의 열교환부로 보내는 제1분기라인; 제1냉각기를 우회하고 압축부 중 설정된 개수의 압축기만을 서로 연결하는 연결라인; 및 공급라인의 압축부의 설정된 지점으로부터 분기되어 제1분기라인과 연결되며, 연결라인 상의 압축기를 통해 제2압력보다 낮은 제3압력으로 압축된 유체를 제2냉각기로 흘려 보내는 제2분기라인;을 포함하되, 저장탱크에 저장된 액화가스의 종류에 따라, 공급라인, 연결라인, 제1분기라인 및 제2분기라인 중 선택적으로 유체가 흘러가도록 한다.


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    Title :

    RELIQUEFACTION SYSTEM


    Additional title:

    재액화 시스템


    Contributors:
    WEON DOO LEE (author) / BYUNGYOON HO (author)

    Publication date :

    2019-04-22


    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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