Analysis of performance of spiral groove dry gas seal considered effects of both real gas and slip flow

SONG Pengyun; ZHANG Shuai; XU Hengjie

doi:10.11949/j.issn.0438-1157.20151358

您当前的位置：

首页 >

文章列表页 >

Analysis of performance of spiral groove dry gas seal considered effects of both real gas and slip flow

更新时间：2025-12-10

- Analysis of performance of spiral groove dry gas seal considered effects of both real gas and slip flow
- CIESC Journal Issue 4, Pages: 1405-1415(2016)
- 作者机构：
  
  昆明理工大学化学工程学院,云南,昆明,650500
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151358
  CLC： 277.9TH136
- Online First：05 April 2016，
  
  Published：05 April 2016
- 稿件说明：
移动端阅览
SONG Pengyun, ZHANG Shuai, XU Hengjie. Analysis of performance of spiral groove dry gas seal considered effects of both real gas and slip flow[J]. CIESC Journal, 2016, (4): 1405-1415.
DOI：

SONG Pengyun, ZHANG Shuai, XU Hengjie. Analysis of performance of spiral groove dry gas seal considered effects of both real gas and slip flow[J]. CIESC Journal, 2016, (4): 1405-1415. DOI： 10.11949/j.issn.0438-1157.20151358.

摘要

为分析考虑实际气体效应和滑移流效应的螺旋槽干气密封性能

通过维里实际气体状态方程代替理想气体状态方程、有效黏性系数代替动力黏度修正窄槽理论螺旋槽干气密封气膜压力控制方程。以氮气(N2)、氢气(H2)、二氧化碳(CO2)为例

分别计算、对比无滑移理想气体、滑移理想气体、无滑移实际气体、滑移实际气体时螺旋槽干气密封的泄漏率、槽根处压力、端面开启力。结果表明:滑移流效应使气体泄漏率增大、槽根处压力和端面开启力降低;实际气体效应使易受压缩气体(压缩因子Z<1)的泄漏率、槽根压力、端面开启力增大

使不易受压缩气体(压缩因子Z>1)泄漏率、槽根压力、端面开启力减小。随着气体压力增大

滑移流效应逐渐减弱

而实际气体效应增强;低压下滑移流效应起主导作用

高压下实际气体效应起主导作用。

Abstract

In order to analyze the performance of the spiral groove dry gas seal considered effects of both real gas and slip flow simultaneously

the modified pressure governing equations of the seal based on the narrow groove theory by taking the effective viscosity coefficient instead of the gas dynamic viscosity and the real gas Virial state equation instead of the ideal gas state equation. N2

CO2 were taken as examples. The leakage

the pressure at groove root radius and the opening force of the seal were calculated. Meanwhile

the leakage

the pressure at groove root radius and the opening force under the condition of ideal gas without slip flow

ideal gas with slip flow

real gas without slip flow and real gas with slip flow were compared

respectively. The results showed that the effect of slip flow made the leakage increase

and the pressure at groove root radius and the opening force decrease. The effect of real gas made the leakage

the pressure at groove root radius and opening force of susceptible compressed gas (Z<1) increase whereas the leakage

the pressure at groove root and opening force of non-susceptible compressed gas (Z>1) decrease. With increasing sealed pressure po

the effect of slip flow was reduced

while that of the real gas was strengthened. Under the condition of low sealed pressure

the slip flow effect was significant. On the contrary

the real gas effect played a predominant role under the condition of high sealed pressure.

关键词

Keywords

references

Views

268

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of the real-gas characteristics of carbon dioxide with impurities on the dry gas seal performance

Effect of real gas on dynamic performance of T-groove dry gas seal

Study on the influence of nonlinear effect on performance of dry gas seal under film thickness disturbance

Analysis on inertia effect of carbon dioxide dry gas seal at high speed and pressure under laminar condition

Analysis of tribological test and performance under rings end faces of spiral groove dry gas seal

Related Author

Wei CHEN

Pengyun SONG

Hengjie XU

Xuejian SUN

HU Xiaopeng

Hao SHANG

Yuan CHEN

Xiaolu LI

Related Institution

Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology

College of Mechanical and Electrical Engineering, China Jiliang University

College of Mechanical Engineering, Zhejiang University of Technology

College of Quality and Safety Engineering, China Jiliang University

Faculty of Environmental Science and Engineering, Kunming University of Science and Technology

⁰