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本文把我们提出的管内压头分布公式制成了诺漠图,从而把简化计算从上文的几个方形虑池的特例,推广到任意的方形和矩形滤池的普遍情况。本文还考虑了穿孔管孔口流量系数μ的沿程变化,并得出了计算流量系数μ的简化方法,这样就完善了计算方法,提高了计算精度,保证了配水的均匀性。而且给出了穿孔管配水系统均匀配水水力计算的算例。
In this paper, the proposed formula for the distribution of the indenter in the tube is made into the normograph, which generalizes the simplification calculation from the special case of several square ponds above to the general case of arbitrary square and rectangular filters. This paper also considers the variation of the flow coefficient μ of the orifice of the perforated tube and obtains a simplified method for calculating the flow coefficient μ. This improves the calculation method, improves the calculation accuracy, and ensures the uniformity of the water distribution. In addition, an example of uniform hydraulic calculation of perforated pipe distribution system is given.