【摘要】 为建立供热管网的在线优化运行、故障实时诊断以及仿真分析和培训系统 ,必须建立一种高精度的蒸汽供热管网动态仿真模型。该模型将蒸汽处理成为单相可压缩流体 ,将管网处理成为由节点和支路组成的一种网络结构。在仿真计算中 ,采用隐式 Euler算法、线性迭代方法和稀疏矩阵算法求解由物理模型所得的非线性微分方程组。证明了所用的算法具有大范围收敛特性。此方法将被应用于青岛市蒸汽供热管网的工程项目中更多还原

【Abstract】 An accurate steam heating network simulation model is necessary to build a optimal system for realtime default detection and for analysis and training. A steam heating network model is presented where the vapor is analyzed as a singlephase compressible stream with the whole heating system analyzed as a flow network composed of nodes and branches. The simulation method uses Euler’s method for the transient terms and solves the equations using relaxation and a diagonal matrix algorithm. The algorithm convergence is very robust. The method will be used to simulate the steam heating network in Qingdao.更多还原