혼합 냉매를 이용하여 액화가스를 높은 효율로 재기화하고, 냉매의 순환유량을 줄이고, 순환펌프를 사용하지 않고도 액화가스를 재기화할 수 있는 액화가스 재기화 시스템이 개시된다. 액화가스 재기화 시스템은, 액화가스를 기화시켜 수요처로 송출하기 위해 액화가스를 이송하는 액화가스 이송라인; 열원으로부터 상기 액화가스를 기화시키기 위한 열을 전달하기 위해 제공되며, 끓는점이 상이한 2성분 이상의 냉매들이 혼합된 혼합 냉매가 순환되는 열매체 순환라인; 상기 열매체 순환라인에 설치되고, 상기 열원과의 열교환에 의해 상기 혼합 냉매를 기화시키는 증발기; 상기 열매체 순환라인에 설치되고, 기화된 혼합 냉매의 열에너지 및 잠열을 이용하여 상기 혼합 냉매와의 열교환에 의해 상기 액화가스 이송라인의 액화가스를 기화시키는 기화기; 상기 열매체 순환라인에 설치되고, 상기 증발기로 공급되는 혼합 냉매의 유량을 제어하는 유량제어밸브; 상기 액화가스 이송라인에 설치되고, 상기 기화기로 공급되는 액화가스의 유량을 제어하는 제1 유량조절밸브; 상기 증발기에 공급되는 열원의 유량을 제어하는 제2 유량조절밸브; 및 상기 기화기에서 배출되는 가스의 온도, 액화된 혼합 냉매의 온도, 액화된 혼합 냉매를 저장하는 팽창 탱크의 압력 및 상기 팽창 탱크의 액위 중 적어도 하나에 따라 상기 유량제어밸브, 상기 제1 유량조절밸브 및 상기 제2 유량조절밸브를 제어하는 제어기를 포함한다.

    Disclosed is a liquefied gas re-gasification system which can perform re-gasification of liquefied gas by using a mixed refrigerant at high efficiency, reduce the circulation flow rate of the refrigerant, and perform re-gasification of the liquefied gas without using a circulation pump. To this end, the liquefied gas re-gasification system may comprise: a liquefied gas transportation line which transports liquefied gas to gasify the liquefied gas before delivering the same to a consumer; a heat medium circulation line which is provided to deliver heat to gasify the liquefied gas from a heat source, and in which the mixed refrigerant, which is produced after refrigerants of at least two components having different boiling points are mixed, is circulated; an evaporator installed at the heat medium circulation line, and gasifying the mixed refrigerant by means of the heat exchange with the heat source; a gasifier which is installed at the heat medium circulation line, and gasifies the liquefied gas of the liquefied gas transportation line by means of the heat exchange with the mixed refrigerant by using the heat energy and latent heat of the gasified mixed refrigerant; a flow control valve which is installed at the heat medium circulation line, and controls the flow rate of the mixed refrigerant supplied to the evaporator; a first flow control valve which is installed at the liquefied gas transportation line, and controls the flow rate of the liquefied gas supplied to the gasifier; a second flow control valve which controls the flow rate of the heat source supplied to the evaporator; and a controller which controls the flow control valve, the first flow control valve and the second flow control valve in accordance with at least one of the temperature of the gas discharged from the gasifier, the temperature of the liquefied mixed refrigerant, the pressure of an expansion tank in which the liquefied mixed refrigerant is stored, and the liquid level of the expansion tank.


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    Title :

    LIQUEFIED GAS RE-GASIFICATION SYSTEM


    Additional title:

    액화가스 재기화 시스템


    Publication date :

    2023-11-27


    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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