摘要
本文分析了分户供暖系统中供回水温差、共用立管比摩阻、系统重力作用压头及户内总阻力损失对系统水力平衡的影响,运用基尔霍夫定律分析了下供下回异程式双立管供暖系统的水力平衡状况,得出了在没有平衡调节装置的情况下,下供下回异程式双立管供暖系统更适用于分户供暖系统的结论,通过计算确定了分户供暖系统共用立管水力平衡的影响因素和平均比摩阻的范围。
This paper analyzed influence to hydraulic resistance balance by the temperature difference between supply and return water, the specific frictional resistance of vertical two-pipe, thermal pressure and pressure drop of single household in the single household hot water heating system. Using Kirchhoffs law, it analyzed the hydraulic balance status of direct return up-feed vertical two-pipe in the single household horizontal hot water heating system and drew the conclusion that an up-feed double pipe system is more suitable for a in the single household horizontal hot water heating system, when there is no balancing regulator. It established through calculation the range of the average frictional resistance of the common dser, and the factors of effect on the hydraulic balance.
关键词
分户供暖
下供下回异程式系统
水力平衡
重力压头
The single household heating, The direct return up-feed vertical two-pipe system Hydraulic balance, Thermal pressure, The specific frictional resistance
