STUDY OF FAULT SELF-RECOVERY AND SEAL IMPROVEMENT FOR CENTRIFUGAL COMPRESSOR

被引:0
|
作者
Wang, Weimin [1 ]
Gao, Jinji [1 ]
Li, Yan [1 ]
Li, Shuangxi [1 ]
机构
[1] Beijing Univ Chem Technol, Beijing, Peoples R China
关键词
SYSTEM; THRUST;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
For centrifugal compressor, discharge or suction pressure variations due to process fluctuations or balance drum seal degradation can result in rotor thrust increasing which may jeopardize thrust bearing and compressor's reliability. Also, the leakage flow through balance drum seal can seriously affect the efficiency of compressor. Summarizing the characteristic of axial displacement fault about centrifugal compressor and analyzing the mechanical performance of tilt pads thrust bearing, theory of axial displacement fault self-recovery is presented and realized through experimental study. The method presented in this paper monitors the stiffness of oil film and identifies the reason of axial displacement increasing. Also the low leakage feature of Dry-Gas-Seal(DGS), high reliability of labyrinth, and the feasibility of upgrading existing structure are taken into account at the same time to design a combined labyrinth-dry gas seal system on the balancing drum. Based on the combined seal system, a Fault Self-Recovering(FSR) mechanism for the fault of rotor axial displacement is introduced to assure the minimum oil film thickness was ensured in real time. The modern Computational Fluid Dynamics(CFD) and experimental study were used to validate this concept. The result and relevant information indicate that the method can realize axial displacement fault self-recovering effectively and the combined sealing system could improve the efficiency of the centrifugal compressor about four percent.
引用
收藏
页码:309 / 316
页数:8
相关论文
共 50 条
  • [1] Early Fault Self-recovery Model and Fault Self-recovery Methods on Aircraft
    Wang Zhongsheng
    Li Ming
    [J]. 2008 CHINESE CONTROL AND DECISION CONFERENCE, VOLS 1-11, 2008, : 487 - 489
  • [2] Study on seal improvement and rotor thrust control of centrifugal compressor
    Diagnosis and Self-Recovering Research Center, Beijing University of Chemical Technology, Beijing 100029, China
    [J]. High Technol Letters, 2007, 3 (273-278):
  • [3] Research on fault self-recovery engineering
    Gao, Jin-Ji
    Ma, Bo
    Jiang, Zhi-Nong
    [J]. Dalian Ligong Daxue Xuebao/Journal of Dalian University of Technology, 2006, 46 (03): : 460 - 468
  • [4] CENTRIFUGAL-COMPRESSOR SEAL
    ADAMS, ML
    RAIMONDI, AA
    [J]. ASLE TRANSACTIONS, 1977, 20 (04): : 287 - 294
  • [5] A study on early failure detection of aircraft and fault self-recovery technology
    Wang Zhongsheng
    Jiang Hongkai
    Luo Baopeng
    [J]. ISTM/2007: 7TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-7, CONFERENCE PROCEEDINGS, 2007, : 1520 - 1523
  • [6] Early Fault Identification of Aircraft and Self-recovery Monitoring of Fault
    Wang Zhongsheng
    Ma Shiwe
    [J]. 2009 INTERNATIONAL CONFERENCE ON MEASURING TECHNOLOGY AND MECHATRONICS AUTOMATION, VOL I, 2009, : 619 - 621
  • [7] Fault Damage Power and Self-recovery System of Machinery
    Gao Jinji
    Wang Weimin
    He Lidong
    Xu Hong
    [J]. DAMAGE ASSESSMENT OF STRUCTURES VIII, 2009, 413-414 : 3 - 13
  • [8] Design of Fault Self-recovery System on Rotor Misalignment
    Zhongsheng, Wang
    Xiaoli, Chen
    [J]. PROCEEDINGS OF THE 27TH CHINESE CONTROL CONFERENCE, VOL 6, 2008, : 122 - 125
  • [9] Raft Protocol for Fault Tolerance and Self-Recovery in Federated Learning
    Dautov, Rustem
    Husom, Erik Johannes
    [J]. PROCEEDINGS OF THE 2024 IEEE/ACM 19TH SYMPOSIUM ON SOFTWARE ENGINEERING FOR ADAPTIVE AND SELF-MANAGING SYSTEMS, SEAMS 2024, 2024, : 110 - 121
  • [10] Early crack information acquisition of rotor and fault self-recovery
    Wang, Zhongsheng
    [J]. Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument, 2008, 29 (SUPPL. 2): : 152 - 155