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發(fā)布時間: 2012-11-7 11:00
正文摘要:葉輪所排出的液體可能會從葉輪與泵殼之間的間隙漏向吸人口,這種內(nèi)部泄漏會降低泵的ηv ,使泵的Q和H減小。為了減少內(nèi)部漏泄,必須使泵殼和葉輪進(jìn)口處的間隙做得很小,這樣,在葉輪人口處即需 ... |
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