Disclosed is a liquefied gas re-gasification system which is used in re-gasification of liquefied gas and can re-gasify liquefied gas at high efficiency. According to an embodiment of the present invention, the liquefied gas re-gasification system is used in re-gasification of liquefied gas and comprises: a liquefied gas transport line to gasify the liquefied gas to deliver the liquefied gas to a user entity; a heating medium circulation line circulating a mixed refrigerant provided to transfer heat for gasifying the liquefied gas from a heat source and having two or more refrigerants with different boiling points mixed therein; an evaporator installed on the heating medium circulation line, and gasifying the mixed refrigerant by heat exchange with the heat source; a gasifier installed on the heating medium circulation line, and using latent heat and thermal energy of gasified mixed refrigerant to gasify the liquefied gas of the liquefied gas transport line by heat exchange with the mixed refrigerant; and a control unit predicting the composition ratio of the mixed refrigerant based on phase equilibrium representing the relationship between temperature and pressure for various composition ratios of the mixed refrigerant, and controlling the composition of the mixed refrigerant based on the predicted composition ratio of the mixed refrigerant.

    액화가스의 재기화에 사용되는 액화가스 재기화 시스템이 개시된다. 본 발명의 실시예에 따른 액화가스 재기화 시스템은, 액화가스의 재기화에 사용되는 액화가스 재기화 시스템에 있어서, 상기 액화가스를 기화시켜 수요처로 송출하기 위한 액화가스 이송라인; 열원으로부터 상기 액화가스를 기화시키기 위한 열을 전달하기 위해 제공되며, 끓는점이 상이한 2 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; 및 상기 혼합 냉매의 다양한 조성비에 대해 온도와 압력 간의 관계를 나타내는 상평형도를 기반으로 상기 혼합 냉매의 조성비를 예측하고, 상기 혼합 냉매의 예측된 조성비를 기반으로 상기 혼합 냉매의 조성을 제어하는 제어부를 포함한다.


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    Title :

    LIQUEFIED GAS RE-GASIFICATION SYSTEM


    Additional title:

    액화가스 재기화 시스템


    Contributors:
    OH YU TAEK (author) / RYU SIJIN (author) / LEE JONG CHUL (author) / CHOI BYUNG YOON (author) / GWEON GIJEONG (author) / MIN KYUNG WON (author)

    Publication date :

    2021-06-14


    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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