基于风险分析的性能化安全设计方法研究

Study on performance-based safety design method based on risk analysis

通过借鉴广泛应用于消防领域的性能化设计思想和方法,针对企业建构筑防火间距不足的问题,本文提出了基于风险分析的性能化安全设计的思想、方法和设计流程等内容,后以某石油储备库为例应用该理论进行性能化安全设计。设计过程包括:确定设计范围为不满足规范要求罐组区内的设备、储存物质和相关人员等;辨识出主要危险因素为火灾、爆炸;根据主要危险因素的结构重要度的分析结果确定了性能化设计的功能指标;根据功能指标增加了高自动化措施、水幕喷淋设施等额外的性能化安全设计措施;最后使用定量方法计算性能化安全设计之后的系统风险值,评估得到性能化安全设计后的系统风险值小于规范防火间距要求下系统的风险值,性能化安全设计满足预期目标。

Imitating the thought and method of performance-based design widely used in the field of fire protection, the theory, method and design process based on risk analysis were proposed, aiming at insufficient enterprise building structures fire separation. Applying the theory, the performance-based safety design of a petroleum reserve was conducted as a case study. Design process included determining equipment, storage material and related personnel within the tank farm that did not meet the regulations requirements as the design scope, Identifying the main risk factors was fire and explosion, determining the function index of the performance-based design according to the results of the structural importance of the main risk factors analysis, adding additional performance-based safety design measures such as high automation, water curtain spraying facilities, calculating the risk of the performance-based safety designed system in quantity and concluding that the value of performance-based safety designed system risk was lower than the value of the risk under the safety design met the target. regulations requirements and the performance-based