摘要
碳氢化合物泄漏引起的火灾事故是海洋平台作业过程中的主要威胁之一,往往伴随着人员伤亡、环境污染、平台停产等灾难性后果。以某400ft水深自升式平台为例,采用DOW火灾指数分析法确定了火灾危险区域,并基于计算流体力学方法,在对湍流模型、燃烧模型、辐射模型等关键技术进行研究的基础上,对钻井区域发生火灾后的温度、热辐射、CO浓度分布变化进行了瞬态分析,最后对风速和燃烧速率的影响进行了讨论,为探索自升式平台火灾扩散机理提供了一些参考。
Fire accident caused by hydrocarbon leaks is one of the major threats to offshore explosion and production process, which normally results in heavy casualty, environment pollution and production stop. In this paper, a 400ft jack-up unit is taken as an example to confirm the hazard area by DOW＇s fire index hazard classification method Based on the study on some key technologies such as turbulence model, combustion model and radiation model, the distributions of temperature, incident radiation and CO mass fraction are transient analyzed after fire accident happens in drilling area. Finally, the influence of wind velocity and burning rate are discussed, which is helpful to the research of fire spread theory for jack-up unit.
出处
《船舶工程》
北大核心
2015年第11期76-79,92,共5页
Ship Engineering
