Application of SPS Simulator in Jingbian-Xianyang Pipeline

The operation management of Jingbian-Xianyang(JX)Pipeline has a difficulty due to the complicated topography along the pipeline.Based on the SPS software(Stoner).ADL and VB programming language are applied on development,and a model that coincides with the real pipeline is built.The pump units starting/shutting down,heater starting/shutting down,agents injection could be dynamically simulated.According to the real process parameter,the parameters in pipeline pressure,temperature and throughput are real-time simulated from transient state to steady state.The simulation results of JX Pipeline for surge condition show that the operation pressure would exceed the allowed level in 20 sec after the trunkline valve in Yangshan Station is closed by mistake.The simulated maximum throughput without drag reducing agent is basically identical with the real operation parameter.This pipeline simulation system can meet the demand of practical engineering precision,but still it has some problems to amend.