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qian yi shi nei jin shu he su liao gei shui guan dao liu su
Pages: 83-85
Year: Issue:  S2
Journal: Water & Wastewater Engineering

Keyword:  金属管塑料管管道流速水力半径降雨历时;
Abstract: 主要介绍给排水设计中常见的管道流速,比较了室内金属给水管道和塑料给水管道流速要求的区别。结论为:在给水管设计时,塑料给水管的设计流速应规定为1.38 m/s<v<2.76 m/s(公共浴室内的管道应由水头损失来控制,无论是金属管还是非金属管,其流速一般为0.5 m/s以下);雨水管内的最大流速发生在充满度为h/D=0.813时,其流速为满流时的1.139倍,此值应不大于管道不被冲刷损坏的最大流速,并且雨水管渠的设计降雨历时公式应为t=t1+t2。
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