摘要
石油化工控制室的抗爆设计已经越来越规范化。提出了控制室抗爆结构研究报告应包含的主要内容,重点阐述了在控制室的抗爆设计过程中爆炸冲击波参数(正超压、作用时间和冲击力)的确定方法;根据释放源类型建立意外释放模型,定义潜在爆炸现场(PES)估算可燃介质有效质量,该方法采用挪威船级社(DNV)的工艺危害分析软件工具(PHAST),基于Baker Strehlow模型,使用燃烧能量和火焰速度估计正超压、作用时间和冲击力;通过喷火分析获得对建筑物最严重的火焰辐射热;这些参数作为建筑物结构设计的设计条件,并给出了应用举例。
It is becoming more regular that the blast resistant design of the control rooms. It is provided that the main content should be included in the study about the fire and blast resistant construction of the control room. It is mainly introduced that the main methods are applied to determine blast impulse wave parameters（positive phase overpressure.duration and impulse）. The accidental release models are constructed based on the chosen release sources. According to the Potential Explosion Sites （PESs） the flammable mass are estimated. The Process Hazard Analysis Software Tool （PHAST） developed by DNV is used to calculate positive phase overpressure, positive phase duration and impulse by the combustion energy and flame speed, based on the Baker Strehlow model. The most severe fire radiation parameters for the control buildings can be obtained by jet fire analysis. These parameters are the design conditions for the structure design calculation. The illustrational application is also given.
出处
《石油化工自动化》
CAS
2010年第4期9-13,共5页
Automation in Petro-chemical Industry
关键词
控制室
抗爆设计
冲击波参数
正超压
control room
blast resistant design
impulse wave parameters
positive overpressure
