迷宫蜂窝密封泄漏特性的实验测量和数值研究

向新; 晏鑫; 李志刚; 李军

doi:10.7652/xjtuxb202211008

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迷宫蜂窝密封泄漏特性的实验测量和数值研究

—————————————————————— | 更新时间：2025-07-09

- 迷宫蜂窝密封泄漏特性的实验测量和数值研究
- Experimental Measurement and Numerical Investigation on the Leakage Flow Characteristics of Labyrinth Honeycomb Seal
- 西安交通大学学报 2022年56卷第11期页码：72-82
- 作者机构：
  
  西安交通大学叶轮机械研究所,西安,710049
- 作者简介：
  
  : 2022-04-25。作者简介: 向新(1998—),男,硕士生
  李军(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(52176042)
- 基金信息：
  
  : 2022-04-25。作者简介: 向新(1998—),男,硕士生;李军(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(52176042);国家科技专项资助项目(J2019-II-0010-0030)
- DOI：10.7652/xjtuxb202211008
  中图分类号： TK474.7
- 网络首发：2022-11-10，
  
  纸质出版：2022
- 稿件说明：
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向新, 晏鑫, 李志刚, 等. 迷宫蜂窝密封泄漏特性的实验测量和数值研究[J]. 西安交通大学学报, 2022,56(11):72-82.

XIANG Xin, YAN Xin, LI Zhigang, et al. Experimental Measurement and Numerical Investigation on the Leakage Flow Characteristics of Labyrinth Honeycomb Seal[J]. 2022, 56(11): 72-82.
向新, 晏鑫, 李志刚, 等. 迷宫蜂窝密封泄漏特性的实验测量和数值研究[J]. 西安交通大学学报, 2022,56(11):72-82. DOI： 10.7652/xjtuxb202211008.

XIANG Xin, YAN Xin, LI Zhigang, et al. Experimental Measurement and Numerical Investigation on the Leakage Flow Characteristics of Labyrinth Honeycomb Seal[J]. 2022, 56(11): 72-82. DOI： 10.7652/xjtuxb202211008.

摘要

为研究蜂窝孔径、径向间隙和运行工况对迷宫蜂窝密封泄漏特性的影响

采用静止密封泄漏特性实验测量平台

测量了7种压比和5种径向间隙下迷宫蜂窝密封的泄漏量。基于数值求解三维Reynolds-averaged Navier-Stokes方程和标准k-ε湍流模型的方法

研究了迷宫蜂窝密封的泄漏特性。分析了压比(1.05～1.6)、密封间隙(0.4～1.2 mm)、转速(0～8 000 r/min)和蜂窝孔径(0.8、1.6、3.2 mm)对迷宫蜂窝密封泄漏特性的影响

并与光滑面迷宫密封进行了对比。研究表明:迷宫蜂窝密封的泄漏量随着压比的增加而近似线性增大; 密封流量系数随径向间隙增大而有所降低

降低最大值为10%。在转速低于3 000 r/min时

转速对迷宫蜂窝密封的泄漏量影响很小; 当转速高于3 000 r/min时

蜂窝结构能够抑制流体的周向运动使迷宫蜂窝密封在高转速时具有更优的密封性能

流量系数明显下降

转速升高到8 000 r/min时密封流量系数最多降低到0转速时的51%。迷宫蜂窝密封流量系数随蜂窝孔径增大先减小后升高

在孔径为0.6 mm与齿宽相等时流量系数最低

此时流量系数比光滑面迷宫密封低3.0%～5.5%; 孔径小于1.6 mm时

迷宫蜂窝密封的泄漏特性优于光滑面迷宫密封。本文工作可为迷宫蜂窝密封的性能分析和设计提供参考。

Abstract

This paper studies the effects of honeycomb cell diameter

radial clearance and operating conditions on the leakage flow characteristics of labyrinth honeycomb seal. The leakage flow rate of the labyrinth honeycomb seal is measured at seven different pressure ratios and five different radial gaps using the stationary experimental test rig. Furthermore

the leakage flow characteristics of the experimental labyrinth honeycomb seal are numerically investigated using three-dimensional Reynolds-averaged Navier-Stokes(RANS)and standard k-ε turbulence model. The effects of the pressure ratios(1.05-1.6)

radial clearances(0.4-1.2 mm)

rotational speeds(0-8 000 r/min)and honeycomb cell diameters(0-3.2 mm)on leakage flow characteristics of the labyrinth honeycomb seal are analyzed and compared with those of the smooth labyrinth seal. According to the results

the leakage flow rate of labyrinth honeycomb seal increases almost linearly with the increase of pressure ratios; the leakage flow coefficient of labyrinth honeycomb seal decreases slightly with the increase of the radial clearance by up to 10%. The rotational speed has little effect on the leakage flow rate when it is lower than 3 000 r/min. When the rotational speed is higher than 3 000 r/min

the leakage flow coefficient of labyrinth honeycomb seal decreases significantly as the honeycomb cell structure can suppress the circumferential flow and thus improve the sealing performance of the labyrinth honeycomb seal. The leakage flow coefficient of labyrinth honeycomb seal at 8 000 r/min is reduced up to 51% compared with that when the rotational speed is 0. The leakage flow coefficient of the labyrinth honeycomb seal first decreases and then increases with the increase of honeycomb cell diameter. The smallest leakage flow coefficient of the labyrinth honeycomb seal is obtained when the honeycomb cell diameter is 0.6 mm

same as the tooth width. In addition

the leakage flow coefficient of the labyrinth honeycomb seal is 3.0%-5.5% lower than that of the smooth labyrinth seal. When the honeycomb cell diameter is less than 1.6 mm

the sealing performance of the labyrinth honeycomb seal is better than that of the smooth labyrinth seal. The research results in this paper can provide reference for the performance analysis and structure design of the labyrinth honeycomb seal.

关键词

Keywords

references

晏鑫, 李军, 丰镇平. 蜂窝密封内流动传热及转子动力特性的研究进展 [J]. 力学进展, 2011, 41(2): 201-216.

YAN Xin, LI Jun, FENG Zhenping. Review of the discharge, heat transfer and rotordynamic characteristics of honeycomb seals [J]. Advances in Mechanics, 2011, 41(2): 201-216.

李军, 晏鑫, 李志刚. 热力透平密封技术 [M]. 西安: 西安交通大学出版社, 2016.

王亚博. 射流蜂窝叶顶控制涡轮叶顶间隙泄漏的数值和实验研究 [D]. 哈尔滨: 哈尔滨工业大学, 2020.

付云峰, 宋彦萍, 陈聪, 等. 机匣与叶顶蜂窝密封对涡轮叶栅顶部泄漏流动的影响 [J]. 工程热物理学报, 2016, 37(5): 963-968.

FU Yunfeng, SONG Yanping, CHEN Cong, et al. Influence of honeycomb casing and honeycomb tip on tip leakage flow in turbine cascade [J]. Journal of Engineering Thermophysics, 2016, 37(5): 963-968.

STOCKER H L, COX D M, HOLLE G F. Aerodynamic performance of conventional and advanced design labyrinth seals with solid-smooth abradable, and honeycomb lands [EB/OL].(1977-11-01)[2022-02-20]. https:∥ntrs.nasa.gov/citations/19780019484.

CHILDS D, ELROD D, HALE K. Annular honeycomb seals: test results for leakage and rotordynamic coefficients: comparisons to labyrinth and smooth configurations [J]. Journal of Tribology, 1989, 111(2): 293-300.

NAYAK K C. Effect of rotation on leakage and windage heating in labyrinth seals with honeycomb lands [J]. Journal of Engineering for Gas Turbines and Power, 2020, 142(8): 081001.

CHARAN NAYAK K, DUTTA P. Effect of rub-grooves on leakage and windage heating in straight-through labyrinth seals [J]. Journal of Tribology, 2016, 138(2): 022201.

聂顺鹏, 刘高文, 雷昭, 等. 有无蜂窝的直通斜齿流动特性旋转实验研究 [J]. 推进技术, 2020, 41(5): 1015-1022.

NIE Shunpeng, LIU Gaowen, LEI Zhao, et al. Experimental study on rotation on flow characteristics of straight-through inclined tooth with or without honeycomb [J]. Journal of Propulsion Technology, 2020, 41(5): 1015-1022.

WRBLEWSKI W, FRACZEK D, MARUGI K. Leakage reduction by optimisation of the straight-through labyrinth seal with a honeycomb and alternative land configurations [J]. International Journal of Heat and Mass Transfer: Part A, 2018, 126: 725-739.

SZYMAAN'USKI A, WRBLEWSKI W, BOCHON K, et al. Experimental validation of optimised straight-through labyrinth seals with various land structures [J]. International Journal of Heat and Mass Transfer, 2020, 158: 119930.

CHOUGULE H H, MIRZAMOGHADAM A V. CFD leakage predictions of labyrinth seals having straight and inclined notched teeth with staggered honeycomb land [C]∥ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. New York, NY, USA: ASME, 2018: V05BT15A015.

SCHRAMM V, WILLENBORG K, KIM S, et al. Influence of a honeycomb facing on the flow through a stepped labyrinth seal [J]. Journal of Engineering for Gas Turbines and Power, 2002, 124(1): 140-146.

KOOL G A, BINGEN F, PAOLILLO R E, et al. A high temperature, high speed seal test rig at NLR-design, construction and validation [C]∥41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference Exhibit. Reston, VA, USA: AIAA, 2005: AIAA 2005-3902.

PAOLILLO R, WANG Chengzhang, VASHIST T K, et al. Rotating seal rig experiments: test results and analysis modeling [C]∥ASME Turbo Expo 2006: Power for Land, Sea, and Air. New York, NY, USA: ASME, 2006: 1551-1559.

ALIZADEH M, NIKKHAHI B, FARAHANI A S, et al. Numerical study on the effect of geometrical parameters on the labyrinth-honeycomb seal performance [J]. Proceedings of the Institution of Mechanical Engineers: Part G Journal of Aerospace Engineering, 2018, 232(2): 362-373.

晏鑫, 李军, 宋立明, 等. 蜂窝面迷宫密封内流动和总温升特性的研究 [J]. 西安交通大学学报, 2008, 42(7): 823-827, 869.

YAN Xin, LI Jun, SONG Liming, et al. Study on flow and total temperature increase of honeycomb labyrinth seals [J]. Journal of Xi'an Jiaotong University, 2008, 42(7): 823-827, 869.

YAN X, LI J, FENG Z. Effects of sealing clearance and stepped geometries on discharge and heat transfer characteristics of stepped labyrinth seals [J]. Proceedings of the Institution of Mechanical Engineers: Part A Journal of Power and Energy, 2011, 225(4): 521-538.

YAN Xin, LI Jun, SONG Liming, et al. Investigations on the discharge and total temperature increase characteristics of the labyrinth seals with honeycomb and smooth lands [J]. Journal of Turbomachinery, 2009, 131(4): 041009.

陈秀秀, 晏鑫, 李军. 蜂窝叶顶密封对透平级气动性能的影响研究 [J]. 西安交通大学学报, 2016, 50(4): 14-20.

CHEN Xiuxiu, YAN Xin, LI Jun. Effect of honeycomb shroud seals on aerodynamic performance of turbine stages [J]. Journal of Xi'an Jiaotong University, 2016, 50(4): 14-20.

LI Jun, KONG Shengru, YAN Xin, et al. Numerical investigations on leakage performance of the rotating labyrinth honeycomb seal [J]. Journal of Engineering for Gas Turbines and Power, 2010, 132(6): 062501.

李志刚, 李军, 丰镇平. 迷宫密封泄漏特性影响因素的研究 [J]. 西安交通大学学报, 2010, 44(3): 16-20.

LI Zhigang, LI Jun, FENG Zhenping. Effects of gap pressure ratio and rotational speed on discharge behavior of labyrinth seal [J]. Journal of Xi'an Jiaotong University, 2010, 44(3): 16-20.

李志刚, 郎骥, 李军, 等. 迷宫密封泄漏特性的试验研究 [J]. 西安交通大学学报, 2011, 45(3): 48-52, 64.

LI Zhigang, LANG Ji, LI Jun, et al. Experiment on leakage flow characteristics of labyrinth seal [J]. Journal of Xi'an Jiaotong University, 2011, 45(3): 48-52, 64.

李志刚, 李军, 丰镇平. 蜂窝密封流动特性的数值研究和泄漏量计算公式的构造 [J]. 机械工程学报, 2011, 47(2): 142-148.

LI Zhigang, LI Jun, FENG Zhenping. Numerical investigation on discharge behavior and predication formula establishment of leakage flow rate of honeycomb seal [J]. Journal of Mechanical Engineering, 2011, 47(2): 142-148.

孙丹, 王猛飞, 艾延廷, 等. 蜂窝密封泄漏特性理论与实验 [J]. 航空学报, 2017, 38(4): 277-286.

SUN Dan, WANG Mengfei, AI Yanting, et al. Theoretical and experimental study of leakage characteristics of honeycomb seal [J]. Acta Aeronautica et Astronautica Sinica, 2017, 38(4): 277-286.

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