关键词: LNG船, 系统通风, 抽风机

Abstract: As an alternative marine clean energy, the liquefied natural gas (LNG) has become more and more popular. However, the particularity of gas fuel brings great safety risk. Therefore, specific safety measures need to be considered in the design of the LNG carrier in order to ensure the safety of the entire gas system. A well-designed ventilation system should be required to ensure the ship safety in case of the accidental gas leakage. An integral LNG double wall piping ventilation system has been established and completely calculated from the ventilation resistance, the ventilation volume and the model selection of the ventilation fan. The corresponding ventilation fan parameters are also selected referring to the calculation results. It can provide reference for the model selection of the relative dual-fuel double wall piping ventilation fan.

Key words: LNG carrier, system ventilation, ventilation fan