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1)  cavitation margin
气蚀余量
1.
Based on an example of S pump cavitation, the relationship of cavitation margin and cavitation are calculated and analyzed.
结合S泵气蚀实例,计算分析了气蚀余量与气蚀的关系,并作出水泵临界气蚀参数计算,以指导控制水泵的非气蚀运行。
2.
The selection of safety valve and the calculation of cavitation margin were discussed,which were very important to the safety of the whole craft.
阐述了二甲醚(DME)掺混的必要性及设计原理,论述了对整个工艺安全至关重要的安全阀的选型计算和烃泵气蚀余量计算,剖析了易燃易爆液化石油气管道系统布置原理及管材选择原则,同时对输送系统也进行了简要论述。
2)  net positive suction head available
有效气蚀余量
3)  NPSH
汽蚀余量
1.
Computing Method on NPSH of Vane Pump;
叶片泵汽蚀余量的计算方法
2.
Relationship Between the Pressure Decreasing and NPSH;
试分析水泵压力降与汽蚀余量的关系
3.
Discussion on NPSH problems in selecting filter press feed pump
压滤机入料泵选型中汽蚀余量问题的探讨
4)  net positive suction head
汽蚀余量
1.
This paper provides an analysis of the causes for cavitation in water pump,and the interrelationships between cavitation and installation level as well as the relations between installation level and vacuum degree and net positive suction head using energy equation.
分析了离心式水泵发生汽蚀的原因,指出了它与安装高度的内在联系,并运用能量方程说明安装高度与真空度及汽蚀余量的相互关系。
2.
The relation ship of net positive suction head of pump versus silt-content in silt- leder water flow is analyzed and established theoretically.
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。
3.
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.
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。
5)  corrosion allowance
腐蚀余量
6)  cavitation of pump
泵汽蚀余量
补充资料:汽蚀余量
分子式:
CAS号:

性质:离心泵的叶轮低压区单位重量液体所具有的超过该温度下饱和蒸气压的富裕能量(压头),以m为单位。为避免发生汽蚀现象,对于给定的泵,在给定转速和流量下,应有一个必须的汽蚀余量,称必须汽蚀作量,其值由半径验公式给出。

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