清水泵 550W 铭牌扬程是30-40米 在井里抽不出水。

2024-11-27 06:10:16
推荐回答(4个)
回答1:

泵是有最大安装高度要求的,你的情况可能是在临界位置,随着抽取井里的水,井水液面下降,下到一定程度就吸不上来了,再过一会井水会上升,就会再出来一点。
最大吸入高度hg应低于下面计算值(负值为倒灌)。否则,泵将不能正常工作
hg = Pb*10.2-NPSH-Hf-Hv-Hs
Pb = 当地大气压 bar(海平面1 bar )
NPSH = 汽蚀余量 m
Hf = 管路损失 m
Hv = 液体饱和蒸汽压m
Hs = 安全余量 m(最小0.5 m )
从上面可以知道你要做的就是1、减小几何吸上高度hg(泵的安装高度)
2、减小吸入管路的水力损失(增大管径、缩短管长、减少弯头、附件等)
3、换成潜水电泵。

回答2:

你说的是自吸泵吧,自吸泵虽然说是吸程8米,但实际吸程到6米的时候水量吸上了已经不多了的,它的8米指的是最大吸程,也就是吸不上来水的时候吸水口的压力。
从你的描述中,我们可以看到,水面到地面的垂直距离是5米,但是平地距离是100多米,平地10米是需要折换为垂直1米的,也就是说,你的实际吸程是15米多,当然吸不上来水。。。。
建议你把水泵安到水井边,那样你在家绝对不会出这种问题了,水泵的扬程是绝对够到你家的。要不然你就用潜水泵吧,不管哪种自习泵都达不到你现在的使用要求的。

回答3:

是吸水这段管的接头漏气引起的,是不是抽出来的水有很多气泡??你可以将连接头拆出来重新扎些胶带

回答4:

是水位下降所致,同时注意总扬程。

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