基于CFD的酸性气管道泄漏危险性分析  

Acidic gas pipe leakage risk analysis based on CFD

作　　者：姜雪[1] 巫志鹏[1] 党文义[1] 于安峰[1] JIANG Xue WU Zhi-peng DANG Wen-yi YU An-feng(SINOPEC Research Institute of Safety Engineering Shandong Qingdao 266000. Chin)

机构地区：[1]中国石化安全工程研究院,山东青岛266000

出　　处：《消防科学与技术》2016年第10期1481-1485,共5页Fire Science and Technology

摘　　要：针对酸性气管线泄漏风险进行研究,发现两种多发泄漏场景:管道沿壁和管道升降弯管处因腐蚀造成泄漏;阀门腐蚀断裂造成泄漏。管道腐蚀的主要原因是氢致开裂(HIC)和硫化物应力腐蚀开裂(SSCC)。基于对酸性气管道的危险源分析,借助CFD软件对酸性气管线泄漏后果进行模拟,对主要危险源泄漏场景进行分类和仿真建模,设置工艺边界和环境边界条件,进行泄漏扩散的模拟。根据计算结果预测泄漏的高危风险区域,模拟扩散范围和最严重事故后果,并提出改进措施。The risk for sour gas pipeline leakage was studied and two major scenes of leakage were found including leakage at lift pipes and pipe bends along the pipe rack,and valve cracking,caused by corrosion.Wherein the conduit corrosion is mainly due to hydrogen induced cracking（HIC）and sulfide stress corrosion cracking（SSCC）.Based on hazard source analysis of the acid gas pipeline,with the CFD simulation of the consequences of acid gas pipeline leakage,the main hazard source leakage was classified and simulation model was established.Environmental boundary and the technique boundary were set to simulate the leakage and diffusion.Based on the evaluation result,the high risk area of leakage was forecast,the spread range and the most dangerous consequence were simulated,and the countermeasures were put forward.

关 键 词：硫化氢管道 酸性气管道 泄漏 CFD模拟 

分 类 号：X913.4[环境科学与工程—安全科学] TU998.1[建筑科学—市政工程]