燃气管网供气可靠度计算中的减供气量  

Reduction of Gas Supply in Calculation of Reliability for Gas Network Gas Supply

作　　者：严铭卿[1,2] 李军[2] YAN Mingqing LI Jun

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074 [2]天津城建大学,天津300384

出　　处：《煤气与热力》2017年第4期10-14,共5页Gas & Heat

摘　　要：提出燃气管网在管段发生故障时管网减供气量小于管段设计流量,提出基于水力工况的燃气管网供气可靠度计算方法应该引入管段设计流量影响因子,以使对管网供气可靠度的估计更接近实际。通过实例计算,得出引入管段设计流量影响因子后,提高了对管网供气可靠度的评价。It is put forward that the reduction of gas network gas supply under the condition of a pipe section failure is less than the design flow rate of the pipe section. It is proposed that the influencing factor of the design flow rate of the pipe section should be in- troduced into the calculation method of reliability for gas network gas supply based on the hydraulic condi- tions, so that assessment of the reliability for gas net- work gas supply is closer to the actual situation. Through case calculation, it is concluded that assess- ment of the reliability for gas network gas supply is im- proved after introduction of the influencing factor of the design flow rate of the pipe section.

关 键 词：燃气管网 故障 可靠性 可靠度 供气 

分 类 号：TU996.6[建筑科学—供热、供燃气、通风及空调工程]