Volume 29 Issue 10
Oct.  2014
Turn off MathJax
Article Contents
Article Navigation >  Journal of Aerospace Power  > 2014  >  (10): 2515-2522
ZHANG Guo-yuan, ZHAO Wei-gang, CHEN Yao, WEI Jun-chao. Active controllability and separation mechanics of non-contact hydrostatic mechanical seal[J]. Journal of Aerospace Power, 2014, (10): 2515-2522. doi: 10.13224/j.cnki.jasp.2014.10.032
Citation: ZHANG Guo-yuan, ZHAO Wei-gang, CHEN Yao, WEI Jun-chao. Active controllability and separation mechanics of non-contact hydrostatic mechanical seal[J]. Journal of Aerospace Power, 2014, (10): 2515-2522. doi: 10.13224/j.cnki.jasp.2014.10.032
shu

Active controllability and separation mechanics of non-contact hydrostatic mechanical seal

doi: 10.13224/j.cnki.jasp.2014.10.032

  • 1. School of Electro-Mechanical Engineering, Xidian University, Xi'an 710071, China;

  • 2. Xi'an Aerospace Propulsion Institute, China Aerospace Science and Technology Corporation, Xi'an 710100;

  • 3. School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China

  • Received Date: 2013-06-27
  • Publish Date: 2014-10-28
    Abstract
  • To explain the separation phenomena and meet the requirement of the leakage of the non-contact hydrostatic mechanical seal, an active controllable method for mechanical seals based on the change of the closing force was proposed. The principle of the method was developed, including: control strategy, control components and control flow. Taking the shaft mechanical seals in the high-speed turbopump as the object, the design for the controllable seal was carried out, and the influence of the controllability and the control elements on the performance of the seals were obtained by the theoretical and experimental methods. The existing separation speed theory was developed, and with the experiment results, the mechanism of the separation speed for the controllable seal was validated. The results show that the strategy of regulating the closing force could satisfy the leakage of the seal; and the range of the control sensitivity coefficient is[1, 3.19]. The developed separation speed theory can reasonably explain the transformation process from the contact state to non-contact state between the mechanical seal faces in the takeoff stage. The results are helpful to design, monitor and control the special mechanical seal under special working conditions.

     

    • FullText(HTML)
  • loading
    • References(16)
  • [1]
    Etsion I,Palmor Z J,Harari N.Feasibility study of a controlled mechanical seal[J].Lubrication Engineering,1991,47(8):621-625.
    [2]
    Wolff P,Salant R F.Electronically controlled mechanical seal for aerospace applications:Part Ⅱ transient tests[J].Tribology Transactions,1995,38(1):51-56.
    [3]
    Zou M,Dayan J,Green I.Dynamic simulation and monitoring of a noncontacting flexibly mounted rotor mechanical face seal[J].Proceedings of the Institution of Mechanical Engineers:Part C Journal of Mechanical Engineering Science,2000,214(9):1195-1206.
    [4]
    Lebeck A O.Experiments and modeling of zero leakage backward pumping mechanical face seals[J].Tribology Transactions,2008,51(4):389-395.
    [5]
    Zou M,Dayan J,Green I.Feasibility of contact elimination of a mechanical face seal through clearance adjustment[J].Journal of Engineering Gas Turbines Power,2000,122(3):478-484.
    [6]
    彭旭东,康玉茹,孟祥铠,等.核主泵用流体静压型机械密封性能的影响因素研究[J].机械工程学报,2012,48(17):83-90. PENG Xudong,KANG Yuru,MENG Xiangkai,et al.Study on factors affecting seal performance of a hydrostatic mechanical seal in reactor coolant pumps[J].Chinese Journal of Mechanical Engineering,2012,48(17):83-90.(in Chinese)
    [7]
    刘向锋,魏琳宗,黄伟峰,等.静压式机械密封流固耦合的理论分析[J].清华大学学报:自然科学版,2011,51(5):1839-1843. LIU Xiangfeng,WEI Linzong,HUANG Weifeng,et al.Theoretical analysis on fluid-structure coupling of hydrostatic mechanical seal[J].Journal of Tsinghua University:Science and Technology,2011,51(5):1839-1843.(in Chinese)
    [8]
    王晓雪,刘莹,李京浩,等.核主泵用动静压波度机械密封机理[J].机械工程学报,2010,46(24):131-135. WANG Xiaoxue,LIU Ying,LI Jinghao,et al.Mechanism of combined coning and waviness mechanical face seal for nuclear reactor coolant pump[J].Chinese Journal of Mechanical Engineering,2010,46(24):131-135.(in Chinese)
    [9]
    张国渊,赵伟刚,闫秀天,等.可控式液体润滑高速螺旋槽端面密封试验研究[J].航空动力学报,2011,26(4):947-953. ZHANG Guoyuan,ZHAO Weigang,YAN Xiutian,et al.Experimental approach for water-lubricated high-speed controllable spiral-groove face seals[J].Journal of Aerospace Power,2011,26(4):947-953.(in Chinese)
    [10]
    张国渊,赵伟刚,闫秀天,等.基于POD降阶模型的非接触端面密封动态监测原理及仿真[J].航空学报,2012,33(2):354-361. ZHANG Guoyuan,ZHAO Weigang,YAN Xiutian,et al.Principle and simulation for real-time monitoring of the non-contact face seal based on POD model[J].Acta Aeronautica et Astronautica Sinica,2012,33(2):354-361.(in Chinese)
    [11]
    周剑锋,顾伯勤.螺旋槽机械密封的可控性[J].机械工程学报,2009,45(1):106-110. ZHOU Jianfeng,GU Boqin.Controllability of spiral groove mechanical seal[J].Chinese Journal of Mechanical Engineering,2009,45(1):106-110.(in Chinese)
    [12]
    Goilkar S S,Hirani H.Design and development of a test setup for online wear monitoring of mechanical face seals using a torque sensor[J].Tribology Transactions,2009,52(1):47-58.
    [13]
    Zhang H,Landers R G,Miller B A.Adaptive control of mechanical gas face seals with rotor runout and static stator misalignment[J].Journal of Dynamic Systems,Measurement and Control,2010,132(4):1-10.
    [14]
    张国渊.高速涡轮泵低粘润滑特性及转子系统动力学研究[D].西安:西安交通大学,2010. ZHANG Guoyuan.Research on the low viscosity lubricating performance and rotor system stability of high-speed turbopumps[D].Xi'an:Xi'an Jiaotong University,2010.(in Chinese)
    [15]
    张国渊,袁小阳,赵伟刚,等.螺旋槽端面密封脱开转速的理论及实验研究[J].机械工程学报,2008,44(8):55-60. ZHANG Guoyuan,YUAN Xiaoyang,ZHAO Weigang,et al.Theoretical and experimental approach of separation speed of spiral groove face seals[J].Chinese Journal of Mechanical Engineering,2008,44(8):55-60.(in Chinese)
    [16]
    ZHANG Guoyuan,ZHAO Weigang,YAN Xiutian,et al.Theoretical and experimental study on characteristics of water-lubricated double spiral grooved seals[J].Tribology Transactions,2011,54(3):362-369.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF(985.0KB)
    XML

    Article Metrics

    Article views (1320) PDF downloads(864) Cited by()
    Proportional views
    Related

    Copyright © 《Journal of Aerospace Power》 All Rights Reserved.

    Supported by: Beijing Renhe Information Technology Co., Ltd.  

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return