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In industry scene, it is complex pipe networks connect various unit equipments together to be a whole system. Similarly, in simulation plant and platform, correct and efficient calculation of pipe networks is the key point to connect each simulation model of independent unit equipment together. But due to the weakness of time-consuming, the traditional methods, which do pipe network calculation by iteration and trial -error method to solve nonlinear equations are no longer available. Borrowing ideas from the circuit theory, using Approximate Linearization and superposition principle, we presented an algebraic pipe network calculation method in this paper. And both Complex Pipe Network Pressure and Flowrate Monitoring Experiment Device, which was designed and manufactured by ourselves, and real running data of Methyl Acrylate production process in some plant were used to verify such method in the last section.

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