Lng regasification apparatus of floating ocean construct

PURPOSE: An LNG(Liquefied Natural Gas) re-vaporization apparatus of a floating sea structure is provided to enhance re-condensation efficiency since before BOG(Boil-Off Gas) is supplied to a suction drum, it is heat-exchanged with low-temperature LNG. CONSTITUTION: An LNG(Liquefied Natural Gas) re-vaporization apparatus(60) of a floating sea structure comprises a gas supply pipe(62), a suction drum(64), a vaporizer(68), a pump(66), a BOG exhaust pipe(70) and a heat exchanger(74). The supply pipe is connected to a storage tank(50) and supplies LNG to an external place. The suction drum stores LNG. The vaporizer is installed on the end of the gas supply pipe and vaporizes LNG. The pump pumps LNG of the suction drum with the vaporizer. The BOG exhaust pipe discharges BOG emitted from LNG. In order that the BOG passing through the BOG exhaust pipe is heat-exchanged with LNG supplied to the vaporizer, the heat exchanger is connected to the BOG exhaust pipe and the gas supply pipe.