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2018-04-21View Original

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Reply #22018-04-21

Translate the following 1. into Korean.

Reply #32018-04-21

就是泵的进口压力变化会带来扬程的变化吗，感觉有点像是多级离心泵，多级增压扬程变大，这个入口压力变大扬程会变吗

Reply #42018-04-21

打扰一下就是泵的特性曲线的在一定转速下扬程和流量的关系怎么得来的流量大杨程小泵的转速和叶片都没变扬程怎么会随流量变化呢我是新手问的不太好希望解答

Reply #52018-04-21

就一台泵来讲，流量跟扬程的具体关系算起来比较复杂，离心泵流量开大，扬程会降低。入口压力多少对泵的扬程没有影响

Reply #62018-04-21

离心泵流量开大后轴功率会增加，流量跟扬程，增大和减少的比例是不一样的。不是扬程流量增加了20%，扬程程就减少20%

Reply #72018-04-22

原来如此谢谢你的答复对我帮助很大

Reply #82019-04-04

1、泵的扬程是该泵在设计加工完毕就具有的固有能力，不会随输送物料的性质而改变，只会根据安装位置、输送的长度和高度发生变化。而出口的泵压与物料的比重有关，压力=密度*g*h+目标单位的压力-进口单位的压力。 2、高扬程泵低扬程工况运行时，流量增加的绝对值远大于扬程降低值，流量超，电机功率超，烧电机

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