泵试验的水温和水密度修正  

Water temperature and correction of water density in pump tests

作　　者：窦昱[1] 

机构地区：[1]陕西动力机械设计研究所,陕西西安710100

出　　处：《火箭推进》2006年第1期59-62,共4页Journal of Rocket Propulsion

摘　　要：介绍了泵闭式试验系统和相关标准对试验介质的要求,论述了泵试验对水温的控制要求,给出了常温清水的密度和饱和蒸汽压依随温度的拟合公式,对正确应用泵相似换算定律和水密度修正做了详细地阐述,结合发动机泵试验的特点,提出了经济的水温控制建议。This paper introduces the closed pump test system and related standard requirements of pump test medium, the controlling requirements of water temperature in pump test. The formula of water density and saturated vapor pressure versus temperature is presented. The correct use of the affinity laws and water density correction is discussed in detail. A suggestion on economical water temperature control is put forward based on the characteristics of engine pump tests.

关 键 词：泵试验 相似定律 水温 水密度修正 

分 类 号：V434.212[航空宇航科学与技术—航空宇航推进理论与工程]