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通过对负压提升式离心水泵气蚀现象的分析 ,阐述了负压提升式离心水泵产生气蚀的原因 ,说明了负压提升式离心水泵的几何安装高度与允许真空度的关系 ,用实例计算出海拔高度和水温对负压提升式离心水泵允许真空度的影响。
By analyzing the cavitation phenomenon of negative pressure lifting centrifugal pump, the cause of cavitation in negative pressure lifting centrifugal pump is expounded. The relationship between the geometric installation height of negative pressure lifting centrifugal pump and the allowable vacuum degree is illustrated. Out of the sea level and water temperature on the negative pressure lifting centrifugal pump to allow the impact of vacuum.