摘要
LNG燃气现已成为炙手可热的船用清洁能源之一。但是由于气体燃料的特殊性,其存在较大的安全风险。因此,在设计时需要额外考虑更多的安全措施,来保证整个燃气系统良好的安全性。在燃气意外泄漏时,需要有良好的通风系统来保证整船安全。文章创建了一条完整的LNG双壁管通风系统,并从其通风阻力、通风量以及抽风机选型等方面对该系统进行完整计算。并且,参照计算结果选取与之相应的抽风机参数。为今后类似的双燃料双壁管抽风机的选型提供了参考方法以及思路。
As an alternative marine clean energy,the liquefi ed natural gas(LNG)has become more and more popular.However,the particularity of gas fuel brings great safety risk.Therefore,specifi c 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 welldesigned 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.
作者
秦俊
孟宁
杨帆
QIN Jun;MENG Ning;YANG Fan(Marine Design&Research Institute of China,Shanghai 200011,China;No.92569 Unit of PLA,Sanya 572021,China)
出处
《船舶》
2021年第2期87-92,共6页
Ship & Boat
关键词
LNG船
系统通风
抽风机
LNG carrier
system ventilation
ventilation fan
