蒸汽供热管网的动态仿真建模  

Steam heating network simulation

作　　者：宋杨 程芳真[1] 蔡瑞忠[1] 杨旭 杨献勇[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2001年第10期101-104,共4页Journal of Tsinghua University(Science and Technology)

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。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.

关 键 词：蒸汽供热管网 动态仿真 大范围收敛性 城市供热系统 故障诊断 在线优化运行 

分 类 号：TU833.12[建筑科学—供热、供燃气、通风及空调工程] TP391.9[自动化与计算机技术—计算机应用技术]