Home Journals Articles Updates About
CN
image
收藏切换
Heat-fluid-solid coupling analysis of ultra‑high speed micro‑textured spiral groove dry gas seal
收藏切换
Genghao LIU, Xuexing DING, Junhua DING
Fluid Machinery | 2025, 53(3) : 69 - 78
Less
收藏切换
Fluid Machinery | 2025, 53(3): 69-78
Heat-fluid-solid coupling analysis of ultra‑high speed micro‑textured spiral groove dry gas seal
Full
Genghao LIU, Xuexing DING, Junhua DING
Affiliations
  • School of Petroleum and Chemical Engineering，Lanzhou University of Technology，Lanzhou 730050，China
Published: 2025-03-30 doi: 10.3969/j.issn.1005-0329.2025.03.009
Outline
收藏切换

This study investigates the influence of axial deformation on the sealing performance of ultra‑high speed dry gas seals under combined mechanical and thermal loads.A 3D geometric solid domain model and fluid domain model were established，incorporating complex effects such as real gas behavior and turbulence. The axial deformation patterns of the rotating and stationary rings，as well as their impact on sealing performance，were analyzed under extreme operating conditions （rotational speed n=40 000 r/min，inlet pressure Pi=8~14 MPa，inlet temperature Ti=373.15~493.15 K）. Results show that mechanical deformation under n=40 000 r/min，Pi=11 MPa，and Ti=3373.15 K yields the maximum leakage rate （MS-DGS，4.19 g/s），while thermal deformation produces the minimum leakage （MS-DGS，1.69 g/s）. The leakage rate under heat‑flow-solid coupled deformation falls between these extremes （MS-DGS，3.66 g/s）. Compared to conventional S-DGS，the MS-DGS exhibits reduced axial deformation and a 1.94% lower leakage rate. These findings provide critical insights for optimizing ultra‑high speed dry gas seal design.

dry gas seal  /  micro‑textured  /  ultra‑high speed  /  real gas effect  /  heat‑flow‑solid coupling  /  deformation
刘暅豪, 丁雪兴, 丁俊华. 超高速微织构螺旋槽干气密封热-流-固耦合分析. 流体机械, 2025 , 53 (3) : 69 -78 . DOI: 10.3969/j.issn.1005-0329.2025.03.009
Genghao LIU, Xuexing DING, Junhua DING. Heat-fluid-solid coupling analysis of ultra‑high speed micro‑textured spiral groove dry gas seal[J]. Fluid Machinery, 2025 , 53 (3) : 69 -78 . DOI: 10.3969/j.issn.1005-0329.2025.03.009
Appendix
Less
Year 2025 volume 53 Issue 3
79
25
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.1005-0329.2025.03.009
  • Receive Date：2024-09-16
  • Online Date：2026-10-20
  • Published：2025-03-30
Article Data
Affiliations
History
  • Received：2024-09-16
  • Revised：2025-02-13
Affiliations
    School of Petroleum and Chemical Engineering，Lanzhou University of Technology，Lanzhou 730050，China
References
Share
https://castjournals.cast.org.cn/joweb/ltjx/EN/10.3969/j.issn.1005-0329.2025.03.009
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House