FUEL SUPPLY SYSTEM

摘要

The present invention provides a fuel supply system capable of reliquefying evaporation gas from a storage tank using liquid nitrogen in a nitrogen tank and performing purging of a fuel system using nitrogen gas in the nitrogen tank. According to the embodiment of the present invention, the fuel supply system includes: a fuel supply line supplying a fuel from the storage tank storing liquid gas to an engine; the nitrogen tank storing the liquid nitrogen; a reliquefaction line returning the evaporation gas in the storage tank after liquefying the evaporation gas by heat exchange in a heat exchanger; a nitrogen circulation line heat-exchanging the liquid nitrogen of the nitrogen tank and returning the liquid nitrogen to the nitrogen tank; and a purging line performing purging by supplying the nitrogen gas of the nitrogen tank to the fuel system of the engine.