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以１００ＭＷ 机组中间储仓式筒式钢球磨制粉系统为对象，通过对制粉系统的流体网络的分析，突破传统的建模方法，把空预器及其连接管道集总为一个动态容积环节，降低了流体网络非线性模型的耦合度；文中提出了节点流量平衡法来解决非线性模型的耦合问题，特别对于求解多节点的流体网络具有较高的精度和速度，而且初值选取范围广；在仿真机上应用和试验结果表明，本文所建模型能正确地反映制粉系统的动态过程，数值方法具有较高的推广应用价值。
Based on the analysis of the fluid network in the pulverizing system and the traditional modeling method, the air preheater and its connecting pipes are aggregated into a dynamic volumetric segment , Which reduces the coupling degree of fluid network nonlinear model. In this paper, node flow balance method is proposed to solve the coupling problem of nonlinear model, especially for the multi-node fluid network with high precision and speed, and a wide range of initial values The application and test results on the simulator show that the model built in this paper can correctly reflect the dynamic process of the milling system. The numerical method has a high value of popularization and application.