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[ 来自:不详  阅读:   时间:2019.05.06 ]

离心泵​的容积损失有密封环漏泄损失、平衡机构漏泄损失和级间漏泄损失。在叶轮入口处,设有密封环,在离心泵工作时,由于密封环两侧存在着压力差,一侧近似为叶轮出口压力,一侧为叶轮入口压力,所以始终会有一部分液体从叶轮出口向叶轮入口漏泄。这部分液体在叶轮里获得了能量,但液体并未送出,这样就减少了水泵的供水量。漏泄液体的能量全部用到克服密封环阻力上了。

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