村镇供水工程配水管网设计流量计算方法研究

Calculation Method of Design Flow of Water Distribution Network in Villages and Towns

我国现行有关村镇供水工程的技术规范、规程等均规定村镇配水管网设计流量应按最高日最大时用水量计算,而在实际设计计算配水管网设计流量时,发现配水管段和节点的设计流量计算值偏低,有的甚至低于一个卫生器具的额定流量,其计算结果明显与实际用水状况不符。为此,通过对村镇供水工程特点和其配水管网设计流量的计算方法分析、研究,提出采用"设计秒流量"的计算方法计算村镇枝状配水管网设计流量,以解决上述村镇配水管网设计流量与实际用水状况不符的问题,可供技术人员参考。

According to the current technical codes and regulations for water supply projects in vil- lages and towns in China, the design flow of water distribution network should be calculated by maximum hourly water consumption. But in real practice, the design flow of water distribution section or nodal point is relatively low, or even lower than the rated flow of one water fixture, which indicates that the calculat- ed result is inconsistent with the real condition. The design second flow was proposed to be used to calcu- late the design flow of water distribution network in villages and towns, based on the analysis and research of the characteristics of water supply project and calculation method of water distribution network in villa- ges and towns. The problem of inconformity between the design flow of water distribution network and the real water consumption in villages and towns can be solved.