SYSTEM FOR SUPPLYING FUEL FOR A MARINE STRUCTURE HAVING A RELIQUEFACTION APPARATUS AND A HIGH PRESSURE NATURAL GAS INJECTION ENGINE

摘要

The present invention relates to a fuel supply system which does not waste heat generated when refrigerant is compressed in a reliquefaction apparatus and utilizes the heat to vaporize LNG for supplying vaporized LNG to a high pressure natural gas injection engine as fuel, thereby enabling efficient use of energy. The fuel supply system for an offshore structure comprises an evaporation gas compressing unit which receives evaporation gas generated in a storage tank from the storage tank to compress the evaporation gas; a reliquefaction apparatus for receiving and liquefying the evaporation gas compressed in the evaporation gas compressing unit; a high pressure pump for compressing the evaporation gas liquefied in the reliquefaction apparatus; a high pressure evaporator for vaporizing the liquefied evaporation gas compressed in the high pressure pump; and a high pressure natural gas injection pump for receiving natural gas vaporized in the high pressure evaporator as fuel, such that waste heat which is generated when refrigerant compressed in the reliquefaction apparatus is cooled can be used by being supplied to the high pressure evaporator.