氢燃料动力船岸基式加注作业泄漏扩散模拟及影响因素分析  

Leakage diffusion simulation and influencing factors analysis on shore-based bunkering operation of hydrogen powered ship

作　　者：冯雨翔 曹蛟龙 吴顺平[1] 石国政[1] FENG Yuxiang;CAO Jiaolong;WU Shunping;SHI Guozheng(Wuhan Rules and Research Institute of China Classification Society,Wuhan Hubei 430000,China)

机构地区：[1]中国船级社武汉规范研究所,湖北武汉430000

出　　处：《中国安全生产科学技术》2022年第3期82-86,共5页Journal of Safety Science and Technology

摘　　要：为保障氢燃料动力船加注作业安全,基于FLACS软件构建模拟模型,将模拟与实验结果进行对比,分析泄漏方向、大气稳定度、风速等因素对氢燃料动力船岸基式加注作业泄漏扩散的影响,并基于模拟结果划定加注作业限制区域及警戒区域。研究结果表明:FLACS模拟结果与实验结果吻合较好;大气越稳定,泄漏后的氢气云越难扩散;水平方向上,氢气云扩散距离随风速的增大先小幅增加后降低;垂直方向上,较高风速对氢气云扩散存在促进作用;建议水上加氢站的控制室在原先设计的基础上向内移动5 m以上;建议取沿船长方向125 m、沿船宽方向21 m、沿垂直方向24 m为包络线,设置加注限制区域,该区域内禁止无关人员进入,并严禁任何形式的点火源。In order to ensure the safety of bunkering operation of the hydrogen powered ship,a simulation model was constructed based on FLACS software,and the simulation results were compared with the experimental results.The influence of leakage direction,atmospheric stability and wind speed on the leakage diffusion of shore-based bunkering operation of hydrogen powered ship was analyzed,and the restricted area and warning area for bunkering operation were demarcated based on the simulation results.The results showed that the FLACS simulation results were in good agreement with the experimental results.The more stable the atmosphere was,the more difficult it was for the hydrogen cloud to diffuse.In the horizontal direction,the diffusion distance of hydrogen cloud first increased slightly and then decreased with the increase of wind speed.In the vertical direction,the higher wind speed promoted the diffusion of hydrogen cloud.It was recommended that the control room of the on-water hydrogen bunkering station should be moved inward by more than 5 m on the basis of the original design.It was suggested to take 125 m along the length of ship,21 m along the width of ship,and 24 m along the vertical direction as the envelope to set the bunkering restricted area,and the irrelevant personnel were prohibited to enter the area and any form of ignition source was strictly prohibited.

关 键 词：氢燃料动力船 加注作业 泄漏扩散 计算流体力学 

分 类 号：X937[环境科学与工程—安全科学]