摘要
在天然气管网动态模拟水力计算方法的基础上,耦合了混输节点流量分配求解方法和发热量动态赋值方法,采用隐式差分法进行数值求解。基于上述方法,编写了多气源天然气管网发热量赋值软件,并进行了发热量赋值计算。经验证,发热量的模拟数值与实测结果的误差在0.36%之内,满足GB/T 18603《天然气计量系统技术要求》最大允差要求。该方法实现了多气源天然气管网气质跟踪和发热量动态赋值的功能。
Based on the hydraulic calculation method for dynamic simulation of gas pipeline network,the mixed transmission node traffic allocation solution method and heat dynamic assignment method are coupled,and the implicit difference method is used for numerical solution.Based on the above method,the calorific assignment software of the multi-source natural gas pipeline network is compiled,and the calorific assignment calculation is carried out.It is verified that the error between the calculated natural gas calorific value and the measured results is within 0.36%,which meets the maximum tolerance requirements of GB/T 18603‘Technical Requirements for Natural Gas Metering Systems’.The method realizes the functions of temperament tracking and dynamic calorific value assignment of multi-gas source natural gas pipeline network.
作者
王雁冰
WANG Yan-bing(China Petroleum and Chemical Corporation Natural Gas Yuji Pipe Branch,Jinan,Shandong 250000,China)
出处
《计量学报》
CSCD
北大核心
2023年第6期899-906,共8页
Acta Metrologica Sinica
关键词
计量学
能量计量
发热量
组分追踪
动态模拟
天然气管网
多气源混输
metrology
energy measurement
calorific value
component tracking
dynamic simulation
natural gas network
multi-source mixed transmission
