基于风险检验技术的城市燃气管网风险管理研究
发布时间：2019-06-04 20:59
【摘要】：城市燃气管网与城市供电系统、供水管网和交通道路一起构成了现代城市的公共基础设施,也是城市生命线的重要组成之一。但是城市生命线燃气管网因长期运行、材料腐蚀老化、环境变迁、系统扩容和城市化进程的迅速发展等因素极易发生突发性、灾难性事故,城市燃气管网的安全可靠性问题变得愈来愈严重。因此,城市燃气管网安全问题引起工业界及学术界的高度重视,开展城市燃气管网的风险管理研究具有重要的意义和价值。论文以重庆江北某区域内的燃气管网为例,建立城市燃气管网失效树模型,得出了导致管道失效的主要原因是管道土壤腐蚀严重和管材抗腐蚀性能较差。另外,还采用基于风险检验(Risk Based Inspection,RBI)技术,对区域内的8条主燃气管道进行了定量风险分析,得出各管道的失效可能性等级和失效后果等级,并对风险等级进行排序,得出8条管道中处于低风险的管道4条,中风险的管道2条,中高风险和高风险的管道各1条。制定了基于风险检验的城市燃气管网的检测周期和维修规划,从而科学制定风险防范措施,实现经济效益的最大化,使安全与效益达到最佳状态的统一,为城市生命线燃气管网的预防维修管理和防范对策提供依据。
[Abstract]:Urban gas pipeline network, urban power supply system, water supply network and traffic road together constitute the public infrastructure of modern city, and it is also one of the important components of urban lifeline. However, the urban lifeline gas pipeline network is prone to sudden and catastrophic accidents due to long-term operation, material corrosion and aging, environmental changes, system expansion and the rapid development of urbanization. The problem of safety and reliability of urban gas pipeline network is becoming more and more serious. Therefore, the safety of urban gas pipeline network has attracted great attention of industry and academia, and it is of great significance and value to carry out the research on risk management of urban gas pipeline network. Taking the gas pipeline network in Jiangbei area of Chongqing as an example, the failure tree model of urban gas pipeline network is established, and it is concluded that the main reasons for pipeline failure are serious soil corrosion and poor corrosion resistance of pipe. In addition, the quantitative risk analysis of eight main gas pipelines in the region is carried out by using the (Risk Based Inspection,RBI technology based on risk test, and the failure possibility grade and failure consequence grade of each pipeline are obtained, and the risk grades are sorted. Four pipelines with low risk, two pipelines with medium risk, one pipeline with high risk and one pipeline with high risk are obtained. The detection cycle and maintenance plan of urban gas pipeline network based on risk inspection are worked out, so that the risk prevention measures can be formulated scientifically, the economic benefit can be maximized, and the safety and benefit can be unified in the best state. It provides the basis for the preventive maintenance management and preventive countermeasures of urban lifeline gas pipeline network.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU996
[Abstract]:Urban gas pipeline network, urban power supply system, water supply network and traffic road together constitute the public infrastructure of modern city, and it is also one of the important components of urban lifeline. However, the urban lifeline gas pipeline network is prone to sudden and catastrophic accidents due to long-term operation, material corrosion and aging, environmental changes, system expansion and the rapid development of urbanization. The problem of safety and reliability of urban gas pipeline network is becoming more and more serious. Therefore, the safety of urban gas pipeline network has attracted great attention of industry and academia, and it is of great significance and value to carry out the research on risk management of urban gas pipeline network. Taking the gas pipeline network in Jiangbei area of Chongqing as an example, the failure tree model of urban gas pipeline network is established, and it is concluded that the main reasons for pipeline failure are serious soil corrosion and poor corrosion resistance of pipe. In addition, the quantitative risk analysis of eight main gas pipelines in the region is carried out by using the (Risk Based Inspection,RBI technology based on risk test, and the failure possibility grade and failure consequence grade of each pipeline are obtained, and the risk grades are sorted. Four pipelines with low risk, two pipelines with medium risk, one pipeline with high risk and one pipeline with high risk are obtained. The detection cycle and maintenance plan of urban gas pipeline network based on risk inspection are worked out, so that the risk prevention measures can be formulated scientifically, the economic benefit can be maximized, and the safety and benefit can be unified in the best state. It provides the basis for the preventive maintenance management and preventive countermeasures of urban lifeline gas pipeline network.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU996
【参考文献】
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