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Review of the Leakage Flow and Rotordynamic Characteristics of the Annular Dynamic Seals in Liquid and Multiple Phases Conditions
| 更新时间：2025-07-09
|
Review of the Leakage Flow and Rotordynamic Characteristics of the Annular Dynamic Seals in Liquid and Multiple Phases Conditions
- Vol. 54, Issue 9, Pages: 1-22(2020)
- 作者机构：
西安交通大学叶轮机械研究所,西安,710049
- 作者简介：
- 基金信息：
DOI：10.7652/xjtuxb202009001
CLC： TK421-
Online First：10 September 2020，
Published：2020
- 稿件说明：
移动端阅览
Review of the Leakage Flow and Rotordynamic Characteristics of the Annular Dynamic Seals in Liquid and Multiple Phases Conditions[J]. 2020, 54(9): 1-22.
Review of the Leakage Flow and Rotordynamic Characteristics of the Annular Dynamic Seals in Liquid and Multiple Phases Conditions[J]. 2020, 54(9): 1-22. DOI： 10.7652/xjtuxb202009001.
Review of the Leakage Flow and Rotordynamic Characteristics of the Annular Dynamic Seals in Liquid and Multiple Phases Conditions
摘要
为保证泵和压气机的全负荷、高效和稳定运行
针对运行在液相和多相环境下的环形动密封特殊的泄漏流动和流体激振转子动力特性
研究人员开展了大量的理论和实验研究。首先
对液相和多相环形动密封的应用背景、密封流体激振力产生机理和转子动力特性系数数学模型进行了分析; 然后
分别对纯液相环境下的环形动密封技术性能分析方法和结构设计研究进展
气液两相环境下环形动密封的泄漏流动、转子耗功和动力特性的研究现状
以及湿气环境下环形动密封技术的泄漏流动和转子动力特性的实验测量和数值模拟方面的研究结论进行了综述; 最后
基于目前液相和多相环境下环形动密封性能在实验测量、数值模拟和理论分析方面的研究结论
展望了环形动密封技术在多相环境下的泄漏流动和流体激振转子动力特性方面需要深入开展的研究课题。针对纯液相环形动密封
研究人员已开发了相应的实验测试方法和基于BULK FLOW模型和CFD(computational fluid dynamics)的数值预测方法
还需进一步开展高效抑振方法和高阻尼液相动密封技术研究; 针对气液两相环形动密封
研究人员主要通过实验测量方法获得气相组分和液相组分对密封泄漏和转子动力特性的影响规律
还需进一步开展气液两相密封高精度数值预测方法和密封微小间隙内两相流动机理研究。
Abstract
To meet the requirements of the high efficiency and stability for compressors and pumps at full load operations
numerous theoretical and experimental studies have been conducted for annular dynamic seals working in pure liquid and multiphase environments
focusing on the special seal leakage and rotordynamic performance. Firstly
the application background in pure liquid and multiphase environments
as well as the fluid-induced excitation mechanism and the mathematical model of rotordynamic coefficients
is introduced for annular dynamic seals. Secondly
the recent advances in the performance analysis method and geometry design are summari-ed for the annular dynamic seals in pure liquid. The research status of the leakage flow
drag loss and rotordynamics is also introduced for the annular dynamic seals in gas-liquid two-phase(gas in liquid)conditions. What is more
the main conclusions from the experimental measurements and numerical simulations on the leakage flow and rotordynamic c
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Keywords
references
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