诱导轮与叶轮组合式航空燃油离心泵轴向力间隙补偿

李嘉; 李华聪; 王淑红; 徐轩

doi:10.13224/j.cnki.jasp.2016.11.027

诱导轮与叶轮组合式航空燃油离心泵轴向力间隙补偿

doi: 10.13224/j.cnki.jasp.2016.11.027

1. 西北工业大学动力与能源学院, 西安 710072;
2. 中国航空发动机集团有限公司西安航空动力控制科技有限公司, 西安 700077

详细信息

作者简介:
李嘉(1989-),男,陕西咸阳人,博士生,主要从事航空发动机燃油系统设计与仿真方面的研究.

中图分类号: V228.1
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- 被引次数: 0
出版历程
- 收稿日期: 2015-02-13
- 刊出日期: 2016-11-28

Outlet clearance optimization on axial-force of inducer and impeller combination aero fuel centrifugal pump

1. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;
2. Xi'an Aero-Engine Controls Technology Company Limited, Aero Engine(Group) Corporation of China, Xi'an 700077, China

摘要

摘要: 以诱导轮与叶轮组合式航空燃油离心泵为研究对象，开展了轴向力出口间隙补偿优化研究.进行了轴向力的数值模拟，并将仿真结果与理论计算进行对比，对比表明两种方法计算的轴向力结果变化趋势一致，误差不大于4%，且设计流量工况下误差最小，进而验证了基于Pumplinx环境下该型离心泵轴向力数值仿真的正确性.通过改变出口间隙宽度分析离心泵的轴向力变化，仿真结果表明：扩大出口间隙至0.2mm时，增大了轴向力，且影响了泵的增压能力；而减小出口间隙至0.1mm和0.13mm时实现了轴向力的补偿，且出口间隙为0.1mm时性能最优.最后对出口间隙为0.1mm时的轴向力性能进行了分析，分析表明：该条件下不同截面的压力分布正常稳定，且设计点的轴向力为3620N，从而实现了诱导轮与叶轮组合式离心泵的轴向力间隙补偿.
- 航空燃油离心泵 /
- 诱导轮与叶轮 /
- 组合式 /
- 轴向力 /
- 出口间隙补偿
Abstract: As the research object of inducer and impeller combination aero fuel centrifugal pumps, the outlet clearance optimization on axial-force of the pump was carried out. Through comparing the axial-force simulation data with theoretical calculation data, the axial-force trends of the two methods were identified similar and the simulation's accuracy was verified by Pumplinx because of the error less than 4%. Then the outlet clearance's influence on axial-force was analyzed. Simulation results show that expanding the clearance to 0.2mm increases the axial-force value, and reduces the pressure charging; but reducing the clearance to 0.1mm and 0.13mm can make optimizations of the axial-force, and the clearance of 0.1mm is the best. The axial-force performance of the model with clearance of 0.1mm was analyzed finally, showing that this model's inner performance of different sections is normal and steady; the axial-force value at design point is 3620N, so reducing the outlet clearance to 0.1mm can make a high optimization about axial-force of the inducer and impeller combination centrifugal pump.
- aero fuel centrifugal pump /
- inducer and impeller /
- combination /
- axial-force /
- outlet clearances optimization

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参考文献(16)

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