成品油输送管网水力模型与仿真

针对成品油管网的工艺特点,以由管道、泵、阀门组成的管网系统为研究目标,运用流体网络基本定律建立数学模型,并运用网络分流算法进行计算,进而获得输送周期内管网系统各分支管道的压力和流量等信息,预测管网在预期工况下的实际操作情况。其主要依据是对于任何集中参数的网络,与任何节点关联的所有分支流量的代数和等于该节点的流量。将管网看作一棵树,将余支作为基准分支,通过树枝加余支的办法形成基本回路矩阵,拟定基准分支和初始流量,由拟定的基准分支,任意选取一独立的回路矩阵,计算Jacobi矩阵与阻力矩阵。基于简单管网算例,验证了上述模型和算法的精度、速度以及稳定性,认为其可以为管道设计和运行管理提供参考依据。

Hydraulic model and simulation of products oil pipeline network

Considering the technical characteristics of products oil pipeline network,taking the pipeline system composed of pump,pipeline and valve as an investigated object,utilizing the basic law of hydraulic network to set up mathematic model,and calculating with network splitting algorithm,the pressure and flowrate in each branch pipe of the pipeline system within one transmission period can be obtained,thus the practical operation conditions will be predicted. The main idea is that the flowrate at any node is eq...