| 摘要 |
The present invention relates to a vaporization apparatus for liquefied natural gas, comprising: a first gas discharging pipe unit of a first anti-freezing atmospheric vaporizer vaporizing liquefied natural gas (LNG); and a circulation gas heating unit heating and elevating the temperature of natural gas (NG) in a NG circulation unit, wherein the NG circulation unit supplies gas branched from a second gas discharging pipe unit of a second anti-freezing atmospheric vaporizer and discharged from the first gas discharging pipe unit to the second gas discharging pipe unit and discharged from the second gas discharging pipe unit to the first gas discharging pipe unit. When icing is generated at least one of the first anti-freezing atmospheric vaporizer and the second anti-freezing atmospheric vaporizer, NG vaporized on the other side is circulated through the NG circulation line unit, inputted into the frozen atmospheric vaporizer, and defrosted. Therefore, the vaporization apparatus for liquefied natural gas has effects of: securing and maintaining the discharge amount of natural gas stably in winter to solve shortage of discharged natural gas; and reducing initial installation cost as there is no need to install a separate vaporizer operated when the atmospheric vaporizer is frozen in winter. |
