LNG evaporation method according to the LNG evaporator and LNG evaporator

摘要

[Problem] if you use the 20~30 about hot and cold water in the previous LNG evaporator, freezing occurs in the heat exchanger tube coil surface, LNG evaporator is likely to be in the closed state. In A outer tube, it is disposed heat transfer tubes coil, the heat transfer tube coil itself, or by spiral flow forming member provided spirally in the outer cylinder, diverted from the total stream flowing through the outer cylinder state is a helical flow expedited flow velocity along the heat transfer tube coil is formed, the heat exchange is made between the liquefied LNG flowing through the cold and hot water and the heat transfer tube coil made to the helical flow, the heat transfer tube coil freezing the outer surface is inhibited.FIELD 2