岔管是管道系统中一种不可少的部件。岔管分流在理论计算上和实际应用中,都研究得很不充分,存在一些值得探讨的问题。随着工农业的发展及技术理论的提高,许多分流岔管出现了新的结构型式,如内加劲月牙肋,埃舍威斯(Escher Wyes)式等(图1)。这些型式除要求结构合理、工程经济外,还必须具有良好的水流条件及最小的水头损失。国内外许多单位在这方面进行了大量的工作,这些研究多以模型试验成果为依据并配以原型观测资料。本文将对岔管分型及其水头损失综合加以图1.内加劲月牙肋岔管示意图 Bifurcation pipe is an essential part of the system. Bifurcated shunt in the theoretical calculations and practical applications, are studied very inadequate, there are some problems worth exploring. With the development of industry and agriculture and the improvement of technical theory, many new types of shunt bifurcations have emerged, such as the internal crescent ribs and the Escher Wyes (Figure 1). In addition to these types of requirements of a reasonable structure, engineering economy, but also must have good water conditions and the smallest head loss. Many units at home and abroad have done a lot of work in this area. Most of these studies are based on the results of model tests and are accompanied by prototype observation data. This article will bifurcated pipe type and head loss integrated to Figure 1. Schematic diagram of the internal reinforcement rib crescent