硫化氢扩散影响因素分析  

Analysis on Influencing Factors of Hydrogen Sulfide Diffusion

作　　者：李旭东 张园园[1] 张巨伟[1] 奚誉宁 韩明桓 Li Xudong;Zhang Yuanyuan;Zhangjuwei;Xi Yuning;Han Minghuan(School of Environmental&Safety Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China)

机构地区：[1]辽宁石油化工大学环境与安全工程学院,辽宁抚顺113001

出　　处：《石油石化绿色低碳》2022年第6期70-73,共4页Green Petroleum & Petrochemicals

基　　金：辽宁石油化工大学《硫化氢泄漏后果仿真分析》项目(2021101480125)。

摘　　要：硫化氢一旦泄漏扩散会给企业造成严重伤害。该文利用MATLAB软件模拟硫化氢源强、平均风速、泄漏源高度发生变化后扩散区域硫化氢峰值浓度、硫化氢峰值浓度出现位置的变化情况并进行相应分析。模拟结果表明:扩散峰值浓度随着源强的增加等倍数的变化,峰值出现轴向距离不变,泄漏峰值浓度随着平均风速的增加呈相反倍数的变化;峰值出现在x轴的位置不变,源高对扩散区域峰值的影响较大,随着源高的增高,扩散区域峰值浓度下降较快。随着源高的变化,扩散峰值出现时间点不同。源强的增加会加重扩散后果,平均风速、泄漏源高度的增加会减轻扩散后果。该文得出的定性和定量规律对于石油化工企业事故预防具有重要意义。Once hydrogen sulfide leaks and spreads,it will cause serious harm to enterprises.In this paper,MATLAB software is used to simulate the changes of hydrogen sulfide peak concentration and location of hydrogen sulfide peak concentration in diffusion area after the changes of hydrogen sulfide source intensity,average wind speed and leakage source height.The simulation results show that the diffusion peak concentration changes in equal multiples with the increase of source strength,the peak appears unchanged over time,and the leakage peak concentration changes in opposite multiples with the increase of average wind speed;the peak appears unchanged at the position of x-axis,the source height has a great impact on the peak in the diffusion area,and the peak concentration in the diffusion area decreases rapidly with the increase of source height.With the change of the source height,the position of the diffusion peak on the x-axis also changes.The increase of the mass of the leakage source will aggravate the diffusion consequences,and the increase of the wind speed at the leakage device and the height of the leakage source will reduce the diffusion consequences.The qualitative and quantitative laws obtained in this paper are of great significance for accident prevention in petrochemical enterprises.

关 键 词：硫化氢 扩散 烟羽模型 连续泄露 有风情况 

分 类 号：TE65[石油与天然气工程—油气加工工程] TQ086[化学工程]