基于异常工况识别的天然气自动分输逻辑  

Automatic Gas Distribution Logic Based on Abnormal Condition Identification

作　　者：牛化昶 李彦苹 于洋 赵文亮 牛牧 孙广宇[3] NIU Hua-chang;LI Yan-ping;YU Yang;ZHAO Wen-liang;NIU Mu;SUN Guang-yu(Shandong Natural Gas Pipeline Co.,Ltd.;Sinopec Natural Gas Branch Co.;College of Pipeline and Civil Engineering,China University of Petroleum(East China))

机构地区：[1]山东省天然气管道有限责任公司 [2]中国石化天然气分公司 [3]中国石油大学(华东)储运与建筑工程学院

出　　处：《化工自动化及仪表》2023年第3期323-330,共8页Control and Instruments in Chemical Industry

基　　金：中国石油大学(华东)自主创新科研计划项目战略专项(22CX01001A-5)。

摘　　要：针对天然气站场自动分输时实际输量与计划输量的偏差问题,从天然气自动分输系统的分输逻辑原理进行分析,发现不均匀系数法对于分输周期异常工况、异常数据及分输周期时间效应的忽略与天然气输差问题有着密切的关系。针对不均匀系数法的缺陷,提出了一种不均匀系数优化方法,在保证充分利用分输数据的基础上将分输周期异常工况的影响降至最小,实施案例中优化方法可将不均匀系数法的偏差率最大降低50.1%。Aiming at the deviation between the natural gas’actual and planned transmission in auto-distribution system of the natural gas station,the distribution logic principle of the natural gas auto-distribution system was analyzed to find out that,the non-uniform coefficient method’s neglect of abnormal working conditions,abnormal data and time effect of distribution cycle has close relationship with the natural gas transmission deviation.In view of the defects of the non-uniform coefficient method,an optimization method of non-uniform coefficient was proposed,in which,on the basis of ensuring full use of the distribution data,the influence of abnormal conditions in the distribution cycle was minimized.In application cases,the optimization method can reduce deviation rate of the non-uniform coefficient method by 50.1%at most.

关 键 词：分输逻辑 不均匀系数法 局限性 异常工况 优化方法 

分 类 号：TE83[石油与天然气工程—油气储运工程]