Optimization and test of parameters of the cryogenic hydrodynamic mechanical seal

被引:0
作者
Zhang G. [1 ]
Chen G. [1 ]
Zhao W. [2 ]
Zhang Y. [1 ]
机构
[1] School of Mechano-Electronic Engineering, Xidian University, Xi'an
[2] Xi'an Aerospace Propulsion Institute, China Aerospace Science and Technology Corporation, Xi'an
来源
| 2018年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 33期
关键词
Cryogenic; High-speed turbopump; Hydrodynamic mechanical seal; Seal test; Thermo-elastic-hydrodynamic-mechanical multi-field coupling model;
D O I
10.13224/j.cnki.jasp.2018.05.009
中图分类号
学科分类号
摘要
Based on analyzing the extreme working conditions, such as high-speed, cryogenic, high-pressure and low viscosity lubricants, a thermo-elastic-hydrodynamic-mechanical multi-field coupling model for the non-contact hydrodynamic mechanical seal in the high-speed turbopump was presented, and the model couple the multi-parts in the seal system, such as seal stator, rotor, sealed fluid and the static supporting elements. The performances of the seal are obtained by solving numerically the coupling model and the main parameters of the seal are optimized. The optimization targets are the maximum of the open force of the seal W and the leakage Q and the minimum of the seal-film generated power (or temperature rise). The seal sample with the optimization parameters is used in the experimental test with the liquid nitrogen as the sealed fluid, and the rapid start-up and friction characteristics of the seal under the cryogenic conditions are obtained. The results show the optimization parameters of the seal with the internal spiral-shaped and external herringbone grooves combination structure are that the groove number is 30 and the groove-depth is 3μm. The friction coefficient of the seal under the cryogenic conditions is 0.14. © 2018, Editorial Department of Journal of Aerospace Power. All right reserved.
引用
收藏
页码:1093 / 1102
页数:9
相关论文
共 21 条
[1]  
Zhang G., Zhao W., Design and experimental study on the controllable high-speed spiral groove face seals, Tribology Letters, 53, 2, pp. 497-509, (2014)
[2]  
Zhang G., Zhao W., Yan X., Experimental study on the water lubrication of non-contacting face seals for turbopumps, Industrial Lubrication and Tribology, 66, 2, pp. 314-321, (2014)
[3]  
Zhang H., Miller B.A., Landers R.G., Nonlinear modeling of mechanical gas face seal systems using proper orthogonal decomposition, ASME Journal of Tribology, 128, 4, pp. 817-827, (2006)
[4]  
Ding X., Zhang H., Zhang W., Et al., Vibration testing and stability analysis for the spiral groove dry gas seal, Journal of Vibration, Measurement and Diagnosis, 33, 2, pp. 231-235, (2013)
[5]  
Ma G., He J., Li X., Et al., Numerical calculation of dynamic coefficients for gas film cylinder seal, Chinese Journal of Mechanical Engineering, 49, 5, pp. 55-62, (2013)
[6]  
Song P., Chan W., Jiao F., Thermodynamic process of interfacial gas film in spiral grooved dry gas seal, Journal of Drainage and Irrigation Machinery Engineering, 32, 11, pp. 973-977, (2014)
[7]  
Liu W., Liu Y., Zhai J.J., Et al., Three-dimensional flow-heat coupling model of a wavy-tilt-dam mechanical seal, Tribology Transactions, 56, 6, pp. 1146-1155, (2013)
[8]  
Zhang S., Li S., Cai J., Et al., Numerical analysis for the tracking property and active regulation vibration characteristics of dynamic-hydrostatic hybrid gas seals, Acta Aeronautica et Astronautica Sinica, 33, 7, pp. 1336-1346, (2012)
[9]  
Meng X., Bai S., Peng X., Lubrication film flow control by oriented dimples for liquid lubricated mechanical seals, Tribology International, 77, 9, pp. 132-141, (2014)
[10]  
Zhang G., Zhao W., Chen Y., Et al., Active controllability and separation mechanics of non-contact hydrostatic mechanical seal, Journal of Aerospace Power, 29, 10, pp. 2515-2522, (2014)