Under the conditions of high demand for energy saving and environmental protection,\nthe thermal power unit is required to phase out the traditional extensive operation modeââ?¬â?a method of\noxygen-enriched combustion in a furnace, considering safety first. Achieving efficient and economic\noperation with an optimal proportion of air distribution in these thermal power units is crucial.\nThe high-precision simulation equipment could provide an experimental basis for optimal operation\nof field units. This paper starts by improving the accuracy of simulation equipment. In this work,\nthe method of dividing nodes and branches in the boiler was based on signal flow graph theory.\nAccording to the flow characteristics of the working substance, the method for calculating the node\nand branch pressure drop was analyzed and set up. Subsequently, a fluid network model of the\nmulti-dimensional flue gas system was constructed. With the help of our self-developed simulation\nmodel and data-driven platform, a modular simulation algorithm was designed. The simulation\nanalysis of the boiler showed the accuracy of the model.
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