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小区给水管网流量计算是处于市政管网与室内管网流量计算过渡段,因而在计算方法上有不同特点。小区市政干管管径大,系统调节能力强,流量波动小,相对稳定。小区的室内管道一般为枝状,流量、管径小,不均匀性大,流量波动大。究竟那一范围内适于DBJ15—88公式?那一范围适用GBJ18—86公式呢?笔者认为:首先按不同工程的设计参数确定的两公式的控制值(分界点),设计过程中利用两流量计算公式联立求解,导出共同控制点——人数、当量的分界值式。这种结合的数解法,较合理的解决小区管网流量计算问题。 目前采用导出的小区流量计算式,使现行的规范公式更加
The calculation of the flow in the residential water distribution network is in the transitional period between the calculation of the municipal pipe network and the indoor pipe network flow. Therefore, there are different characteristics in the calculation method. The community municipal trunks have large diameters, strong system adjustment capabilities, small flow fluctuations and relatively stable conditions. The indoor pipe of a residential area is generally branched, with small flow, small pipe diameter, large inhomogeneity, and large flow fluctuations. Which range is suitable for DBJ15-88 formula? That range applies GBJ18-86 formula? The author thinks: First, according to the control values of the two formulas determined by the design parameters of different projects (demarcation point), the use of two flows in the design process The calculation formulas are solved together to derive a common control point—the demarcation value of the number of people and the equivalent. This combined number solution provides a more reasonable solution to the community pipe network flow calculation problem. Currently, the derived cell flow calculation formula is used to make the current normative formula more