|Table of Contents|

Design of fluid dynamic pressure sealing(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2017年05期
Page:
52-57
Research Field:
研究与设计
Publishing date:

Info

Title:
Design of fluid dynamic pressure sealing
Author(s):
ZHANG Feng; LI Jianke; NING Jianhua; SONG Yong; WANG Liang
Xi'an Aerospace Propulsion Institute,Xi'an 710100,China
Keywords:
fluid dynamic pressure seal;  spiral groove;  laser marking
PACS:
V434-34
DOI:
-
Abstract:
Based on the finite element Matlab software platform,the numerical simulation analysis and calculation of fluid dynamic pressure seal were carried out with computer,and the relationship of the fluid dynamic pressure sealing ring logarithmic spiral groove radius and spiral angle with the fluid dynamic pressure sealing opening force and leakage rate were studied. The design criterion of the hydrodynamic pressure seal was obtained.The process specification of laser marking etching logarithmic spiral groove was got in the laser marking process experiments.The logarithmic spiral groove moving ring made with this technology specification can meet the design requirements.The running test results of fluid dynamic pressure sealing medium show that the dynamic pressure sealing finite element numerical simulation analysis and calculation of Matlab computer are reasonable,and the design and process specification of the fluid dynamic pressure seal are correct and effective.

References:

[1] 杨惠霞,王玉明.泵用干气密封技术及应用研究[J].流体机械,2005,33(2):1-4.
[2] 曹登峰,宋鹏云,李伟,等.螺旋槽气体端面密封动力学研究进展[J].润滑与密封, 2006(5): 178-182.
[3] 宁建华.光刻技术在流体动力密封研究中的应用[J].火箭推进,2005, 31(4):41-43.
NING Jianhua. Application of photoetching to liquid hydrodynamic seal[J]. Journal of rocket propulsion, 2005, 31(4): 41-43.
[4] MOORE J J. Three-dimensional CFD rotor dynamic analyses of gas labyrinth sealings [J]. Journal of vibration and acoustics, 2003, 125(4): 427-433.
[5] BLOCH H P. Consider dry gas sealings for centrifugal compressors [J]. Hydrocarbon processing, 2005, 84(1): 9-10.
[6] TABATA H, SANO M. Study of high efficiency turbo compressor development of high-speed and high pressure dry-gas-sealing [J]. IHI engineering review, 2005, 38(1): 1-5.
[7] 徐万福,耿彬,谷霞,等.流体动力润滑螺旋槽非接触机械密封的发展及应用[J].润滑与密封, 2006(12): 203-207.
[8] ZOU M, GREEN I. Clearance control of a mechanical face sealing [J]. Teratology transactions, 1999, 42(3): 535-540.
[9] 周剑锋.机械密封中的热流体动力效应研究[D].南京:南京工业大学, 2006.
[10] 蒋小文, 顾伯勤. 螺旋槽干气密封气膜特性研究[J].化工学报, 2005, 56(8): 419-425.

Memo

Memo:
-
Last Update: 2017-11-10