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[". Pourquoi la la vitesse augmente-t-elle lorsqu'il y a érosionionaision?

2019-05-05View Original

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[". Pourquoi les grands maîtreses disentent que今天每日一题中的第二题“非恒速离心泵发生抽空汽蚀时,泵的转速会稍有提高”是正确的?为什么汽蚀时会使转速提高?
Reply #22019-05-06
Je pense que c'est à cause de la réduction de la charge que抽空的话负荷减小造成的吧?
Reply #32019-05-06
Lorsqu de l'érosion时转速高,震动大,而流量小。有汽蚀,转速高,震动大,而流量小。对泵的损伤非常大。要赶紧停泵。
Reply #42019-05-06
Lorsqu当泵发生汽蚀时,轴功率变小(输送的不是纯液体),使得电机负载降低,电机转差率减小,所以电机转速稍有提高
Reply #52019-05-06
La chargeors负荷变小,转速稍有提高
Reply #62019-05-13
Lorsqu de l'érosion发生气蚀时,泵体内是气液混合,泵的做功少了,轴功率也降低,一般电动机是异步电动机,转速就会有所提高

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