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阐述乳化液泵的曲轴转数与液力端产生汽蚀之间的关系和影响。通过对泵的净正吸入压头NPSH的分析和对国内使用的乳化液泵产品的结构参数的调查表明,曲轴转数的增加,是造成液腔内汽蚀的主要原因,高压大流量乳化液泵液力端因汽蚀失效报废增加。因此,曲轴转数不可过高,从性能和经济性两方面考虑,建议曲轴转数在500～550 r/min。
Describe the relationship between the crankshaft revolution of the emulsion pump and the cavitation on the hydraulic end. Through the net positive suction head NPSH pump analysis and domestic use of the emulsion pump product structural parameters of the survey showed that the increase in crankshaft rotation is the main reason for cavitation within the liquid chamber, high pressure and high flow emulsion Pump hydraulic end scrap due to failure to increase scrap. Therefore, the number of crankshaft rotation can not be too high, from both performance and economy considerations, the recommended number of crankshaft rotation 500 ~ 550 r / min.