Performance analysis of internal pressure type spiral groove liquid film seals based on phase change

CAO Hengchao; HAO Muming; LI Zhentao; YANG Wenjing; WANG Yanhong; YUAN Junma

doi:10.11949/j.issn.0438-1157.20170478

您当前的位置：

首页 >

文章列表页 >

Performance analysis of internal pressure type spiral groove liquid film seals based on phase change

更新时间：2025-12-10

- Performance analysis of internal pressure type spiral groove liquid film seals based on phase change
- CIESC Journal Issue 9, Pages: 3532-3540(2017)
- 作者机构：
  
  中国石油大学(华东)密封技术研究所,山东,青岛,266580
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170478
  CLC： B42
- Online First：05 September 2017，
  
  Published：05 September 2017
- 稿件说明：
移动端阅览
CAO Hengchao, HAO Muming, LI Zhentao, et al. Performance analysis of internal pressure type spiral groove liquid film seals based on phase change[J]. CIESC Journal, 2017, (9): 3532-3540.
DOI：

CAO Hengchao, HAO Muming, LI Zhentao, et al. Performance analysis of internal pressure type spiral groove liquid film seals based on phase change[J]. CIESC Journal, 2017, (9): 3532-3540. DOI： 10.11949/j.issn.0438-1157.20170478.

摘要

液膜相变现象不仅改变了端面润滑状态，而且对密封性能及稳定性有着显著的影响。使用有限体积法对控制方程进行离散，研究了螺旋槽结构参数与密封工况参数对密封性能及液膜相变率的影响。结果表明：开启力与泄漏量随螺旋角、槽数、槽深、压差、转速的增大而增大，随槽面宽比、槽台宽比的增大先增大后减小，分别在槽面宽比ζ=0.5与槽台宽比φ=0.7时取到最大值。相变率随螺旋角、转速的增大而增大，随槽数、槽深、压差、槽台宽比的增大而减小，随槽面宽比的增大先减小后增大，在槽面宽比ζ=0.8时取最小值。通过对各参数合理地选择与组合，可以有效地抑制相变进程，进而在保证密封运行稳定的同时利用相变现象提高密封性能。

Abstract

The liquid film phase change phenomenon not only changes the lubrication state of the end face

but also has a significant influence on the sealing performance and stability. The governing equations are discretized using the finite volume method. The influence of the structure parameters of spiral groove and the sealing condition on the sealing performance and phase change rate were studied. Results show that the opening force and leakage rate increase with the increase of the spiral angle

the number of grooves

groove depth

the pressure difference and the rotation speed; increase first and then decreases with the increase of the ratio of groove width in radial direction to surface width and the ratio of groove width to dam width

and take the maximum value when the ratio of groove width in radial direction to surface width ζ=0.5 and the ratio of groove width to dam width φ=0.7. The phase change rate increases with the increase of spiral angle and rotating speed

decreases with the increase of the number of grooves

groove depth

the pressure difference and the ratio of groove width to dam width

decreases first and then increases with the increase of the ratio of groove width in radial direction to surface width

and take the minimum value when the ratio of groove width in radial direction to surface width ζ=0.8. The phase transition process can be effectively inhibited by reasonable selection and combination of the parameters. The sealing performance can be improved by using the phase change phenomenon while ensuring the stability of the sealing operation.

关键词

Keywords

references

Views

181

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of phase change on performance of spiral groove liquid film seals

Study on flash evaporation characteristics as well as thermodynamic variation performance in liquid hydrogen tank during on-orbit venting

Study on enhanced pool boiling heat transfer based on self-driven jet device

Research on the thermal physical properties and heat storage performance of FeCoNC carbon material-reinforced composite phase change materials

Study on sealing performance optimization of spring-energized seals for ultra-high pressure valves

Related Author

SUN Zhen

REN Fujun

LIANG Ge

LI Peng

LI Ke

SUN Peijie

WANG Lei

LI Yanzhong

Related Institution

Department of Refrigeration and Cryogenic Engineering, Xi’an Jiaotong University

Shanghai Aerospace System Engineering

School of Energy and Power Engineering, University of Shanghai for Science and Technology

School of Energy and Power Engineering, Changsha University of Science and Technology

CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion

⁰