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给水系统中,给水管网是一个重要的组成部分。给水管网的造价约占整个给水工程造价的50～80%,因此尽管给水管网的布置和计算非常复杂,但还是应该给以重视和不断进行研究的。一、给水管网的布置形式给水管网的布置按国内传统的方法有两种布置形式,即树枝网和环状网。1.树枝网树枝状管网,故名思义,其管网布置就象一棵树,如图1所示。树枝网中,水流方向是单一向的,即节点流量由单根管段供
In the water supply system, the water supply network is an important part. The cost of the water supply network accounts for about 50 to 80% of the total cost of the water supply project. Therefore, although the layout and calculation of the water distribution network are very complicated, they should be given due attention and continuous research. First, the layout of the water supply pipe network The layout of the water supply pipe network has two arrangements in accordance with the traditional domestic methods, namely, the branch network and the ring network. 1. Branch-tree nets The dendritic pipe network, as its name suggests, is arranged like a tree, as shown in Figure 1. In the branch network, the direction of water flow is unidirectional, that is, node flow is provided by a single pipe segment.