The present invention relates to a reliquefaction system of evaporation gas and a ship, comprising: a liquefied gas storage tank; an evaporation gas compressor for compressing evaporation gas generated from the liquefied gas storage tank; and a liquefaction portion for liquefying the evaporation gas by using mixed refrigerant, wherein the liquefaction portion comprises: a reliquefier for liquefying the evaporation gas by heat exchanging with the mixed refrigerant; a screw type mixed refrigerant compressor using oil for sealing and lubrication, and compressing the mixed refrigerant; and an oil treatment portion for separating the oil from the compressed mixed refrigerant and recirculating the oil with the mixed refrigerant compressor, in which the oil treatment portion supplies the oil to the evaporation gas compressor. An object of the present invention is to improve liquefaction efficiency in the evaporation gas reliquefaction process.
본 발명은 증발가스 재액화 시스템 및 선박에 관한 것으로서, 액화가스 저장탱크; 상기 액화가스 저장탱크에서 발생한 증발가스를 압축하는 증발가스 압축기; 및 혼합냉매를 이용하여 상기 증발가스를 액화시키는 액화부를 포함하고, 상기 액화부는, 상기 증발가스를 상기 혼합냉매와 열교환시켜 액화하는 재액화기; 실링 및 윤활을 위해 오일을 사용하는 스크류 타입이고 상기 혼합냉매를 압축하는 혼합냉매 압축기; 압축된 상기 혼합냉매에서 상기 오일을 분리해 상기 혼합냉매 압축기로 재순환시키는 오일 처리부를 포함하며, 상기 오일 처리부는, 상기 증발가스 압축기로 상기 오일을 공급하는 것을 특징으로 한다.
liquefaction system of boil-off gas and ship having the same
증발가스 재액화 시스템 및 선박
2018-01-03
Patent
Elektronische Ressource
Koreanisch
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 / 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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