Control technique for linepack of natural gas pipeline network

The control technique for linepack of natural gas pipeline network has been studied to ensure the safe and stable operation of gas pipeline network. The classification, control principle and control standard of linepack were elaborated based on the current production and operation experience of natural gas pipeline network, and the control technique for linepack was analyzed in detail from four aspects: selling in spring and autumn, guaranteed supply in winter and summer, gas distribution and prediction of accident pipeline survival time. The results suggest that linepack should be actively controlled for a uniform change according to the weekly inhomogeneity sale in spring and autumn, and it should be raised to the emergencyhigh level or the highest level to ensure the gas supply in winter and summer. The gas from the natural gas pipeline network can be reasonably distributed based on the control area of the linepack, and the survival time of the accident pipeline can be predicted according to the low linepack limit of natural gas pipeline.