供热系统最佳定压点位置确定研究

Research on Determination of Optimum Constant Pressure Point of Heating System

通过对供热管网不同循环水泵位置的放置以及定压点位置设定组合,绘制水压图,分析确定了循环水泵与定压点位置的设定对系统压力的影响变化规律;得出循环水泵的位置决定了供热系统压力极限点的位置、定压点的位置决定了系统极限压力值的大小。最后在此基础上运用能量守恒方程推导确定出系统最佳定压点的准确位置。

Through the placement of different circulating water pump positions in the heating pipe network and the combination of the position of the fixed pressure point,the water pressure diagram was drawn and analyzed to determine the changing law of the influence of the circulating water pump and the setting of the fixed pressure point on the system pressure;the circulating water pump was obtained.The position of the heating system determines the position of the pressure limit point of the heating system,and the position of the constant pressure point determines the size of the limit pressure value of the system.Finally,the exact position of the optimal constant pressure point of the system is determined by deriving the energy conservation equation on this basis.