城镇燃气管网风险管控的要点分析

Analysis on Key Points of Risk Management and Control of Urban Gas Network

随着城市的发展及城镇燃气管网等地下基础设施的建设,各地时常发生燃气爆炸、中毒、闪燃等燃气管道的安全事故,且事件的数量及危害程度有上升的趋势,给国家的公共安全与社会的和谐稳定带来了威胁和影响。燃气管网隐患现已经成为社会公共重大风险管控之一。据数据显示,城市在用的地下敷设的或明管敷设的燃气管道,受到内部冲刷腐蚀、外部环境变换等诸多因素的影响,均出现了不同程度的质量缺陷和安全隐患,包括防腐层破坏、管道开裂、标识不清等,不仅使管网安全系数下降,而且给整个社会和周边环境带来安全隐患。城市埋地燃气管道所处区域的往往地表人口密集,环境复杂,一旦发生事故将社会造成巨大的经济损失及生命威胁。

With the development of the city and the construction of underground infrastructure such as urban gas pipeline network,safety accidents of gas pipeline such as gas explosion,poisoning and flashover often occur in various places,and the number and harm degree of the accidents have an upward trend,which has brought threats and impacts to the national public security and social harmony and stability.The hidden danger of gas pipeline network has become one of the major public risk management and control.According to the data,the underground or open gas pipelines in use in the city are affected by many factors,such as internal erosion and corrosion,external environment transformation,and so on.All of them have different degrees of quality defects and potential safety hazards,including the damage of anti-corrosion coating,pipeline cracking,unclear identification,and so on,which not only reduces the safety factor of the pipeline network,but also reduces the safety factor of the pipeline network,And it brings security risks to the whole society and the surrounding environment.Urban buried gas pipelines are located in areas with dense population and complex environment,which will cause huge economic losses and life threats in the event of accidents.