单管段失效对中压燃气管网供气可靠性影响的模拟
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摘要
以供气可靠性为切入点,结合用户的保证系数,基于Pipeline Studio软件,搭建气源压力200 kPa的四环管网模型,探讨不同位置管段失效对系统供气可靠性的影响.研究结果表明:供气点两侧管段发生故障时对系统供气可靠性影响最大,为最不利事故工况.论文基于四环燃气管网模型水力可靠性分析,提出提高环状燃气管网水力可靠性的措施与思路.
With the key point of the reliability of gas supply, and considering the user′s guarantee coefficient, this article builds a four-annular pipe network model with a source pressure of 200 k Pa based on the Pipeline Studio software to explore the influence of different failure pipe positions on the reliability of system gas supply. The research results show that the most unfavorable accident conditions are caused by the failure of the pipe section on both sides of the gas supply point, which has the greatest impact on the reliability of the system gas supply. Based on the analysis of the hydraulic reliability of the four-annular gas pipeline network, the article proposes the idea of improving the hydraulic reliability of the annular gas pipe network.
With the key point of the reliability of gas supply, and considering the user′s guarantee coefficient, this article builds a four-annular pipe network model with a source pressure of 200 k Pa based on the Pipeline Studio software to explore the influence of different failure pipe positions on the reliability of system gas supply. The research results show that the most unfavorable accident conditions are caused by the failure of the pipe section on both sides of the gas supply point, which has the greatest impact on the reliability of the system gas supply. Based on the analysis of the hydraulic reliability of the four-annular gas pipeline network, the article proposes the idea of improving the hydraulic reliability of the annular gas pipe network.
引文
[1]吴策宇,耿晓梅,赵焕省.欧洲天然气管道发展特点及事故原因[J].油气储运,2014,33(2):148-152.
[2]约宁.煤气供应[M].北京:中国建筑工业出版社,1986.
[3]毕彦勋.燃气输配系统的可靠性评价[J].煤气与热力,1986(3):24-33.
[4]郭永基.可靠性工程原理[M].北京:清华大学出版社,2002.
[5]毕彦勋.事故状态下环状燃气输配管网的计算[J].煤气与热力,1987(2):28-36.
[6]赵涛,林青.可靠性工程基础[M].天津:天津大学出版社,1999.
[7]严铭卿.燃气输配管网供气可靠性评价方法[J].煤气与热力,2014,34(1):1-5.
[8]WAGNER J M,SHAMIR U,MARKS D H.Water distribution reliability:Simulation methods[J].Journal of Water Resources Planning&Management,1988,114(3):276-294.
[9]彭世尼.论高、中压燃气输配环网的可靠性设计方法[J].重庆建筑大学学报,1998(5):66-71.
[2]约宁.煤气供应[M].北京:中国建筑工业出版社,1986.
[3]毕彦勋.燃气输配系统的可靠性评价[J].煤气与热力,1986(3):24-33.
[4]郭永基.可靠性工程原理[M].北京:清华大学出版社,2002.
[5]毕彦勋.事故状态下环状燃气输配管网的计算[J].煤气与热力,1987(2):28-36.
[6]赵涛,林青.可靠性工程基础[M].天津:天津大学出版社,1999.
[7]严铭卿.燃气输配管网供气可靠性评价方法[J].煤气与热力,2014,34(1):1-5.
[8]WAGNER J M,SHAMIR U,MARKS D H.Water distribution reliability:Simulation methods[J].Journal of Water Resources Planning&Management,1988,114(3):276-294.
[9]彭世尼.论高、中压燃气输配环网的可靠性设计方法[J].重庆建筑大学学报,1998(5):66-71.