热网分阶段变流量质调节经济运行下各参数的确定
Determination of parameters under economic operation with constant flow control of phased variable flow in heat supply network
摘要：
通常采用100%和75%两阶段或100%，80%和60%三阶段变流量质调节运行方式对热网进行调节，但从系统运行能耗的角度考虑，如此分挡是否最为经济以及各挡运行时间应为多少尚未有确切数据，因此也就无法评价供热系统运行的经济性。对此，选取我国北方具有代表性的20个城市，从系统优化运行的角度出发，通过综合分析给出不同地区对应的运行参数，为改变习惯做法提供必要的理论依据。
Abstract：
The two-phase variable flow at 100% and 75% or the three-phase at 100%, 80% and 60% are commonly used in the adjustment of heat supply network. However, from the perspective of the system energy consumption, this kind of adjustment has no exact data about whether such a division is the most economic and how long the division of operation time should be, which makes it impossible to evaluate the economic efficiency of the heat supply system. Selecting twenty cities in the north of China as samples, gives the operational parameters of different areas from the point of view of system optimization operation after synthetic analyses, which provides a theoretical basis for changing customarily thought about flow adjustment.
Keywords:heating system,constant flow control of phased variable flow,economic operation time,energy saving,constant flow control