请问我要用4分喷头。0.8-1.62立方。70个。要用多大水泵。多粗管

2025-04-03 01:06:20
推荐回答(1个)
回答1:

每个喷头的流量为每小时0.8-1.62立方,那么70个喷头的总流量为每小时56~113立方米,主管路建议用DN125(5吋管),支管路建议用DN80(3吋管),分支管路建议用DN25(1吋管),喷头管路用DN15(4分管)。
一般喷头的所需压力为0.15~0.25MPa(即1.5~2.5公斤),相当于水泵扬程15~25米,计及压力损失,可考虑用30~35米扬程的水泵。
每个喷头的流量按照中间值1.2立方米计算,应选用100吨流量、35米扬程的水泵,其配套电机约为15千瓦(水泵效率按照0.65估算)。
由于喷头较多,那么管路也应该较长,这时所引起的压力损失是较大的,合理的布置主、支、分支管路可以最大限度的减少压力损失,否则会造成首端喷头压力过大、而末端喷头压力过小的现象。

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