油气泄漏火灾下FPSO热-结构耦合分析

发布时间：2018-07-23 09:17

【摘要】：针对FPSO油气泄漏引发的火灾风险,建立热-结构耦合分析模型,采用ANSYS Workbench软件对工艺区设备泄漏、火灾事故及灾害下结构响应进行数值模拟,重点分析工艺处理模块Ⅰ区设备温度分布及热变形情况。通过对比不同油气泄漏速率和环境风速下火灾发展、危害范围和结构受损程度,探讨油气泄漏孔孔径和风速对火灾后果的影响。结果表明:稳定发展火灾下工艺处理模块Ⅰ区设备周围环境维持高温状态;泄漏孔附近结构受损最严重,原油热处理器受火灾损害发生大的变形;随泄漏孔孔径增大,火灾危害范围扩大,结构发生大变形的区域增大,d=40 mm时原油热处理器受损最严重,d=60mm时结构受损区域最大,大部分结构受损程度加剧;来风风速的变大使得火灾更加剧烈,设备受损区域扩大,受损程度加剧,结构火灾风险加大。
[Abstract]:In view of the fire risk caused by FPSO oil and gas leakage, the thermal-structural coupling analysis model is established, and the structural response of equipment leakage, fire accident and disaster in process area is simulated by ANSYS Workbench software. The temperature distribution and thermal deformation of the equipment in zone I of process processing module were analyzed. By comparing the fire development, damage range and damage degree of structure under different oil and gas leakage rates and environmental wind speed, the effects of pore diameter and wind speed on fire consequences are discussed. The results show that the environment of the equipment in zone I of process treatment module I maintains a high temperature state under the steady development of fire, the structure near the leak hole is the most serious, the thermal processor of crude oil is deformed greatly by the fire damage, and the aperture of the leak hole increases with the increase of the diameter of the leak hole. The damage range of the fire is enlarged, and the area of large deformation of the structure is enlarged. When the thermal processor of crude oil is damaged the most seriously and the damage degree of most of the structures is aggravated when the thermal processor of crude oil is damaged the most, and the wind speed increases, which makes the fire more intense. The equipment damaged area expands, the damage degree intensifies, the structure fire risk increases.
【作者单位】：中国石油大学(华东)海洋油气装备与安全技术研究中心;
【基金】：国家安全生产监督管理总局2012年安全生产重大事故防治关键技术科技项目(2012-507) 中央高校基本科研业务费专项(14CX02074A)
【分类号】：TE88

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