集装箱船甲醇加注站区域围壁设计及气体扩散分析

Wall Design and Gas Diffusion Analysis of Methanol Bunkering Station for Container Ships

在甲醇双燃料船设计中,甲醇加注站区域设计是一个重要关注点。以某型集装箱船为例,运用计算机模拟分析不同风向下甲醇加注站区域发生甲醇泄漏时的气体扩散特点,比较不同围壁设计对减小气体危险区域的效果,给出甲醇加注站围壁设计方案和设计依据。计算结果表明,该设计能改变以往设置甲醇加注站区域时大多参考化学品船的液货集管区域设置,未考虑一般货船的甲板面为非危险区域的情况,避免将加注站设计成半遮蔽或开放式区域,有效规避危险和防止毒性区域扩大。

In the design of methanol dual fuel vessels,the design of the methanol bunkering station is important.Taking a certain type of container ship as an example,numerical simulation is used to analyze the gas diffusion characteristics when methanol leakage occurs in the methanol bunkering station under various wind directions.The effects of different wall designs on reducing gas hazard areas are compared,and a design scheme for the methanol bunkering station wall is provided along with the design basis.The calculation results show that this design can change the situation that previous designs are mostly based on the liquid cargo header area of chemical ships,without considering the situation where the deck surface of general transport ships is a non-hazardous area,thus avoiding the design of the bunkering station to be a semi shielded or open area,effectively avoiding danger and preventing the expansion of toxic areas.