三、集中供热管网的优化运行前两讲介绍了热电联产供热系统最佳热化系数的计算方法。为了保证整个系统的经济效果最佳,还必须使供热管网处于最佳运行状态。热电联产供热系统一般规模较大,在这种大型集中供热系统中为了保证供暖的质量和经济性,需要采用间接系统(即输送管网的水不直接进户,在建筑物进口有换热设备)。为了保证达到采暖的要求,需要根据室外温度对供 III. Optimized Operation of Centralized Heating Pipe Network The first two lectures introduced the calculation method of the optimal heating coefficient of cogeneration heating system. In order to ensure the best economic effect of the entire system, the heating network must also be in the best operating condition. The cogeneration heating system is generally large in size. In order to ensure the quality and economy of heating in this large-scale centralized heating system, an indirect system is needed (ie, the water of the pipeline network is not directly imported into the building; Heat exchange equipment). In order to guarantee the heating requirements, it is necessary to provide