输配水管道沿程水头损失计算方法探讨

Discussion on the calculation method of the frictional head loss in the water transportation and distribution pipe

输配水管道是城市供水系统的重要组成部分,管道沿程水头损失计算又是输配水管道设计的核心。探讨了常用水头损失计算公式的适用范围及公式中参数的选择。水力计算应根据不同的水流流态采用与之适应的计算公式,并选取对应的水力计算参数,使水力计算成果准确可靠。

Water transportation and distribution pipe line is the important part of the urban water supply system, and the frictional head loss calculation is the key point of the water transportation and distribution pipe line design. This paper discussed the applicability of the usual head loss calculation formula and its parameters selection. Hydraulic calculation should employ adaptive calculation formula according to different water current and select corresponding hydraulic calculation parameters, so the hydraulic calculation results would be accurate and reliable.