固定式压力容器风险模糊层次综合评价研究.pdf

第42卷第5期
石油化工设备
Vol 42 No 5
2013年9月
PETRO-CHEMICAL EQUIPMENT
Sept 2013
文章编号:1000-7466(2013)05-0074-05
固定式压力容器风险模糊层次综合评价研究
张锦伟,姚安林,康乐,叶冲
(西南石油大学,四川成都610500)
摘要:针对目前国内缺乏压力容器失效数据库的特点,提出采用模糊综合评价的方法对压力容器
失效可能性进行计算,从而进行压力容器的风险评价。从腐蚀、设计、制造、安装、运行、维护与检修
6个方面分析导致压力容器失效的风险因素,并采用层次分析法确定各风险因素权重,计算压力容
器失效可能性,对压力容器失效顶事件的综合评价向量进行了点值化处理。根据 Muhlbauer评价
方法,确定了压力容器泄漏影响系数,进而计算压力容器的风险值。借鉴API581--2000《Risk
based Inspection Technology》风险等级划分原则,考虑现场实际情况,提出了固定式压力容器风险
等级的划分区间。以某输气站场固定式压力容器为例,采用上述风险评价方法确定其风险等级,验
证了该方法的适用性。
关键词:固定式压力容器;风险评价;模糊层次综合评价;层次分析
中图分类号:TQ050.7
文献标志码:A
doi:10.3969/j.iss.1000746.2013.05.019
Research on Fuzzy Hierarchy Comprehensive Assessment of
Stationary Pressure Vessel Risk
ZHANG Jin-wei, YAO An-lin, KANG Le, YE Chong
(Southwest Petroleum University, Chengdu 610500, China
Abstract: Due to the absence of domestic pressure vessel failure database, the calculation of
pressure vessel failure possibility is proposed based on the method of fuzzy comprehensive assess
ment. From the view of corrosion, design, manufacture, installation, operation, and mainte
nance & inspection firstly, risk factors of pressure vessel failure are analyzed. The weights of
risk factors are calculated based on the method of analytic hierarchy process, and failure possibili
ty of pressure vessel is also calculated. The comprehensive assessment vector of top event
pressure vessel failure is converted into a spot. The leak influence factor of pressure vessel is also
obtained compliance to the method of Muhlbauer, then the risk value of pressure vessel is calcu
lated. Risk ranks are segregated according to the principle of API 581-2000 Risk-based Ins pec-
tion Technology, simultaneously, considering the realities of pressure vessel. The segregation in-
tervals of risk ranks about pressure vessel is proposed. For the last part, stationary pressure ves
sel at gas transmission station is taken for example, according to the method of risk assessment
introduced, the risk rank of which is relative low. The result is consistent with the determination
of experts, so, the practical of this method is validated
Key words: stationary pressure vessel; risk assessment; fuzzy hierarchy comprehensive assess
ment; analytic hierarchy process
收稿日期:2013-05-08
基金项目:国家科技支撑计划项目(2011BAKO6B01-11-01)
作者简介:张锦伟(1986-),男,四川德阳人,硕士研究生,主要从事油气长输管道风险评价与完整性评价研究