管道顺序输送运行优化

Analysis and Computation of Operation Optimazation of Batching Pipelines

分析了管道顺序输送水力状态及工况调节的特殊性,给出了表述油品“界面”处于管道各特殊点时全线能量平衡方程和各校核点动压的通用计算式。以寻求输量最大为目标,阐述了满足工艺约束的最大可行输量的搜索解算方法,给出了解算最优工况的流程图。

The analysis of special hydraulic condition and operation problem of batching in pipelines is presented. The general energy balance equation of pipeline and the synthetic dynamic pressure e-quation of the critical points in pipeline are proposed. The method of seeking the allowable maximum throughput, which is subjected to the operational condition, is also proposed. With the throughput,the surplus of pumping pressure for the flow dissipation are calculated,which must be suppressed by regulating. In accordance with the principle of upstream regulation priority,the regulating pressure is reasonably apportioned to pumping stations to acquire the benefit of making pressure gradient as near as possible to pipeline profile. In the end,the general computational scheme for the optimal operation of batching in pipelines is offered.