Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (10): 84-91.doi: 10.13475/j.fzxb.20210203808

• Textile Engineering • Previous Articles     Next Articles

High-temperature sealing performance of braided heat-sealed components

LIU Junli1,2, XU Zhigao1(), ZHANG Feng2,3, TIAN Gan1, YANG Zhengwei1, WANG Yu3   

  1. 1. College of Missile Engineering Institute, Rocket Force University of Engineering, Xi'an, Shaanxi 710025, China
    2. Beijing Interstellar Glory Technology Co., Ltd., Beijing 100176, China
    3. Shaanxi Interstellar Glory Space Technology Co., Ltd., Xi'an, Shaanxi 710100, China
  • Received:2021-02-15 Revised:2021-05-17 Online:2021-10-15 Published:2021-10-29
  • Contact: XU Zhigao E-mail:ayue113@163.com

RichHTML

12

PDF (PC)

141

Abstract:

In order to study the sealing performance of braided heat-sealing components directly applied to high-temperature environments, two types of sealing components are selected: three-dimensional double-strand braided rope and double-layer three-strand braided spring tube. Based on the Kozeny-Carman equation of porous media, two sealing leakage models of the sealing components are established. The high-temperature sealing performance was tested separately by high-temperature sealing test, and the leakage of two high-temperature sealing components under different pressure differences and different working conditions and temperatures were obtained, which verified the validity of the model. The research results show that the leakage of the sealing components of the three-dimensional double-strand braided rope and the double-layer three-stranded spring tube gradually increases with the continuous increase of the pressure difference, and gradually decreases with the increase of the temperature. Under the same working conditions, the leakage of the double-layer three-strand braided spring tube seal assembly is less than that of the three-dimensional double-strand braided rope. The research results can provide a reference for the selection of sealing structures suitable for high-temperature environments.

Key words: heat sealing component, braided structure, sealing leakage model, high temperature sealing performance

CLC Number: 

  • TS10

Fig.1

Schematic diagram of sealing components. (a) 3DDSBR sealing components; (b) DLTSBST seal assembly"

Tab.1

Main structural performance of sealing components"

密封组件 密封组件结构 材 料 编织方式
3DDSBR 编织绳 石英纤维棉 三维编织
DLTSBST 外层护套 陶瓷纤维 WallStent
内层护套 陶瓷纤维 WallStent
编织弹簧管 GH 141 Strecker
内部填芯 陶瓷纤维棉 —

Fig.2

Schematic diagram of seal leakage. (a)Flow through seal; (b)Flow around seal"

Fig.3

Schematic diagram of porous media model of sealing component"

Fig.4

3DDSBR seal assembly leakage diagram"

Fig.5

Schematic diagram of leakage of DLTSBST seal assembly"

Fig.6

Schematic diagram of leakage channel and leakage rate of DLTSBST seal assembly"

Fig.7

Schematic diagram of high temperature thermal resistance sealing test platform"

Fig.8

Comparison of test and theoretical data of two kinds of sealing components"

Fig.9

3DDSBR sealing component test and theoretical data comparison"

Fig.10

DLTSBST sealing component test and theoretical data comparison"

Fig.11

Comparison of experimental and theoretical data of two sealing components under different pressure differences"

[1] 刘军, 刘奎, 宁博, 等. 三维编织复合材料T型梁的低温场弯曲性能[J]. 纺织学报, 2019, 40(12):57-62.
LIU Jun, LIU Kui, NING Bo, et al. Bending properties of three-dimensional braided composite T-beam at low temperature[J]. Journal of Textile Research, 2019, 40(12):57-62.
[2] MUNK D J, VERSTRAETE D, VIO G A. Effect of fluid-thermal-structural interactions on the topology optimization of a hypersonic transport aircraft wing[J]. Journal of Fluids and Structures, 2017, 75:45-76.
doi: 10.1016/j.jfluidstructs.2017.08.007
[3] 张宇玮, 姜艳青, 石刚, 等. 高温基线密封研究进展[J]. 宇航材料工艺, 2011, 41(2):21-25.
ZHANG Yuwei, JIANG Yanqing, SHI Gang, et al. Research progress of high temperature baseline sealing[J]. Journal of Aerospace Material Technology, 2011, 41(2):21-25.
[4] 薛俊川. 高超声速飞行器陶瓷栅板式密封设计研究[J]. 飞机设计, 2016, 36(2):48-52.
XUE Junchuan. Research on the design of ceramic grid seals for hypersonic aircraft[J]. Journal of Aircraft Design, 2016, 36(2):48-52.
[5] STEINETZ B M, ADAMS M L, BARTOLOTTA P A, et al. High-temperature braided rope seals for static sealing applications[J]. Journal of Propulsion and Power, 1997, 13(5):675-682.
doi: 10.2514/2.5219
[6] STEINETZ B. Effects of compression, staging, and braid angle on braided rope seal performance [C]//33rd Joint Propulsion Conference and Exhibit. Seattle: AIAA, 1997:28-72.
[7] CAI Z, MUTHARASAN R, KO F K, et al. Development of hypersonic engine seals-flow effects of preload and engine pressures[J]. Journal of Propulsion and Power, 1994, 10(6):884-889.
doi: 10.2514/3.23827
[8] MUTHARASAN R, TAO X, KO F, et al. Development of braided rope seals for hypersonic engine applications. II-Flow modeling [C]//27th Joint Propulsion Conference. Seattle: AIAA, 1991:24-95.
[9] 焦亚男, 李想, 方鹏, 等. 三维编织石英纤维热密封材料气密性能研究[J]. 固体火箭技术, 2017, 40(3):358-363.
JIAO Yanan, LI Xiang, FANG Peng, et al. Air-tight performance of three-dimensional braided quartz fiber heat sealing material[J]. Solid Rocket Technology, 2017, 40(3):358-363.
[10] 焦亚男, 景媛媛, 方鹏, 等. 立体编织石英纤维热密封环的气密性能[J]. 纺织学报, 2017, 38(6):46-51.
JIAO Yanan, JING Yuanyuan, FANG Peng, et al. Airtightness of three-dimensional woven quartz fiber heat sealing ring[J]. Journal of Textile Research, 2017, 38(6):46-51.
[11] PATRICK D J, STEINETZ B, CURRY D. Investigtions of control surface seals for re-entry vehicles [C]//38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Seattle: Seattle: AIAA, 2002:39-41.
[12] PATRICK D J, STEINETZ B, CURRY D. Rudder/fin seal investigations for the X-38 re-entry vehicle [C]//36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Seattle: AIAA, 2005:41-54.
[13] TAYLOR S, DEMANGE J, DUNLAP P. Evaluation of high temperature knitted spring tubes for structural seal applications [C]//40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Seattle: AIAA, 2004:38-90.
[14] DEMANGE J, DUNLAP P, STEINETZ B. Improved Seals for High Temperature Airframe Applications [C]//42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Seattle: AIAA, 2006:49-35.
[15] 彭祖军. 高温动密封结构设计与分析[D]. 哈尔滨: 哈尔滨工业大学, 2011: 3-29.
PENG Zujun. Design and analysis of high temperature dynamic seal structure[D]. Harbin: Harbin Institute of Technology, 2011: 3-29.
[16] 薛云嘉, 贾韬, 王锐桐, 等. 用于热密封组件的编织弹簧弹性性能分析[J]. 稀有金属材料与工程, 2020, 49(2):494-499.
XUE Yunjia, JIA Tao, WANG Ruitong, et al. Elastic performance analysis of braided spring used for heat-sealing components[J]. Rare Metal Materials and Engineering, 2020, 49(2):494-499.
[17] 焦亚男, 仇普霞, 方鹏, 等. 热密封件用三维编织物压缩性能试验研究[J]. 固体火箭技术, 2015, 38(6):865-869.
JIAO Yanan, QIU Puxia, FANG Peng, et al. Experimental study on compression performance of three-dimensional braid for heat seals[J]. Solid Rocket Technology, 2015, 38(6):865-869.
[1] . Study on the high-temperature sealing performance of braided heat-sealed components [J]. , 2021, 42(10): 0-0.
[2] YANG Ping, YAN Biao, MA Pibo. Research advances in manufacture and properties of mesh fabrics [J]. Journal of Textile Research, 2021, 42(01): 175-180.
[3] . Gas tightmess characteristics of3-D braided sealing rings [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(06): 46-51.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
京ICP备14006648号
Copyright 2021 © Editorial office of Journal of Textile Research
Supported by Beijing Magtech Co.Ltd