试题与答案

24Sh-19型离心泵的铭牌上注明:在抽升20℃水温的水时,HS=2.5m,现问:

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题目:

24Sh-19型离心泵的铭牌上注明:在抽升20℃水温的水时,HS=2.5m,现问: ①该泵在实际使用中,是否其水泵吸入处的真实表值HV只要不大于2.5m水柱,就能够保证该泵在进行中不产生气蚀。 ②铭牌上HS=2.5m是否意味着,该泵叶轮中的绝对压力不能低于10.33-2.5=7.83m水柱高?为什么?请简述回答。

答案:

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