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汽蚀余量
NPSH (net positive suction head)
- 指出临界汽蚀余量和初生汽蚀余量之间没有一定的倍数关系。
It also shows that it hasn't definite multiple relationship between critical cavitation allowance and primary cavitation allowance. - 从理论上分析推导了抽送含沙水流时泵的汽蚀余量随含沙量的变化关系。
Based on an example of S pump cavitation, the relationship of cavitation margin and cavitation are calculated and analyzed. - 根据离心泵汽蚀余量的计算公式来分析影响泵汽蚀特性的因素，主要包括泵体设计和叶轮进口设计。
According to the formula of net positive suction head of centrifugal pump, the main factors which affect pump cavitation are the design of pump casing and impeller inlet.
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