CFD Simulation on Leakage and Explosion Accident of Liquefied Hydrocarbon Loading Station and Dynamic Responses Analysis of Control Room

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Gu, Meng^1 ; Ling, Xiaodong^1 ; Du, Kaituo^1^2

State Key Lab. of Safety and Contr. for Chem. of SINOPEC Qingdao Res. Inst. of Safety Engineering, Qingdao, Shandong

266101, China^1

College of Mechanical and Electronic Engineering, China University of Petroleum (Huadong), Qingdao Shandong

266580, China^2

关键词: Explosion accidents;    Explosion loading;    Explosion overpressure;    Hydrocarbon leakage;    Linear relationships;    Peak overpressure;    Three-dimensional model;    Vapour cloud explosions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022124/pdf
DOI  :  10.1088/1755-1315/300/2/022124

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Considering the dangerous characteristics of Liquefied hydrocarbon loading station, a three-dimensional model of a certain liquefied hydrocarbon working area was established to simulate the accident of liquefied hydrocarbon leakage and vapour cloud explosion, and the relationship between the number of loading vehicles and explosion overpressure was analyzed. Meanwhile, the existing control room is not designed for anti-explosion, and the personnel are relatively concentrated, so the dynamic response of the control room under explosion loading needs to be analyzed. The researches show that due to the blocking effect of propylene substation on the combustible gas cloud under north wind, the equivalent stoichiometric cloud mass is higher than that in the southwest wind direction. The blocks in the working area are mainly distributed along the east-west direction, so the peak overpressure of the propylene substation is smaller than that of the control room. There is a linear relationship between the loading vehicles and the explosion overpressure in the control room. With the decrease of the number of loading vehicles, the explosion overpressure decreased significantly. If the number of loading vehicles is not reduced, the brick wall of the existing control room will be broken and collapsed under explosion loading, threatening the safety of personnel in the control room.