加注过程中液氧的温升和液氧泵的变频调速技术  

THE TEMPERATURE RAISE OF LOX DURING LOADING AND VARIABLE FREQUENCY TECHNOLOGY FOR LOX VARIABLE SPEED PUMP

作　　者：符锡理[1] 

机构地区：[1]中国航天工业总公司十五所

出　　处：《低温工程》1998年第4期1-4,共4页Cryogenics

摘　　要：分析了用泵加注液氧的温升，给出了温升计算公式并举例做了计算。指出采用调速泵加注可以消除因节流引起的能量损耗，降低液氧的温升。最后介绍了用现代变频器实现加注泵调速的技术。The temperature raise of LOX during loading process via pump is analysed.Its calculating formulas and some calculating examples are given.It is point out that loading LOX via variable speed pump can reduce throttle losses as well as can reduce the LOX temperature raise.At last,the variable frequency technology for LOX loading pump is presented.

关 键 词：液氧加注 温升 变频调速 推进剂输送系统 液氧泵 运载火箭 

分 类 号：V421.42[航空宇航科学与技术—飞行器设计]