FUEL GAS SUPPLY FACILITY OF LIQUEFIED NATURAL GAS CARRIER USING DUAL FUEL PROPULSION

摘要

A fuel gas supply apparatus of liquefied natural gas carrier using dual fuel propulsion is provided to improve the efficiency of the compression process of the spontaneous evaporation natural gas by cooling the spontaneous evaporation natural gas using liquefied natural gas. A fuel gas supply apparatus of liquefied natural gas carrier using dual fuel propulsion comprises a first spontaneous evaporation natural gas cooling device(101) and a second spontaneous evaporation natural gas cooling device(103). The first spontaneous evaporation natural gas cooling device is arranged at the front end of a first spontaneous evaporation natural gas compressor(102) condensing the spontaneous evaporation natural gas. In order to cool the spontaneous evaporation natural gas flowed into the first spontaneous evaporation natural gas compressor, the first spontaneous evaporation natural gas cooling device is installed. The second spontaneous evaporation natural gas cooling device is arranged at the front end of a second spontaneous evaporation natural gas compressor(104). In order to cool the spontaneous evaporation natural gas flowed into the second spontaneous evaporation natural gas compressor, the second spontaneous evaporation natural gas cooling device is installed. The first spontaneous evaporation natural gas cooling device uses the liquefied natural gas discharged from a pump(200) equipped in a cargo tank(100) as refrigerant.