CN111120656B - 一种进气道防火密封结构 - Google Patents

一种进气道防火密封结构 Download PDF

Info

Publication number
CN111120656B
CN111120656B CN201911358525.1A CN201911358525A CN111120656B CN 111120656 B CN111120656 B CN 111120656B CN 201911358525 A CN201911358525 A CN 201911358525A CN 111120656 B CN111120656 B CN 111120656B
Authority
CN
China
Prior art keywords
apu
air inlet
sealing element
inlet channel
intake duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911358525.1A
Other languages
English (en)
Other versions
CN111120656A (zh
Inventor
梁力
陈西锋
杨成茂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVIC First Aircraft Institute
Original Assignee
AVIC First Aircraft Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AVIC First Aircraft Institute filed Critical AVIC First Aircraft Institute
Priority to CN201911358525.1A priority Critical patent/CN111120656B/zh
Publication of CN111120656A publication Critical patent/CN111120656A/zh
Application granted granted Critical
Publication of CN111120656B publication Critical patent/CN111120656B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00Flanged joints
    • F16L23/16Flanged joints characterised by the sealing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00Expansion-compensation arrangements for pipe-lines
    • F16L51/02Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00Expansion-compensation arrangements for pipe-lines
    • F16L51/02Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/025Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Duct Arrangements (AREA)
  • Building Environments (AREA)

Abstract

本申请提供一种进气道防火密封结构,所述进气道防火密封结构包括辅助动力装置APU进气道(1)、防火密封件(2)、辅助动力装置APU(3)、压板(4)、进气道法兰(5)和APU集气法兰(6),其中:APU进气道(1)为流道结构,防火密封件(2)为环形结构,所述防火密封件(2)包括进气道端连接边(21)、波浪(22)、APU端挤压边(23)和防脱头(24),进气道端连接边(21)为所述防火密封件(2)沿进气方向剖面的上端,波浪(22)为所述防火密封件(2)沿进气方向剖面的中间挤压段,APU端挤压边(23)为所述防火密封件(2)沿进气方向剖面的下端,防脱头(24)为设置在APU端挤压边(23)下的钩状结构,进气道法兰(5)设置在辅助动力装置APU进气道(1)的端头外部,APU集气法兰(6)设置在APU(3)的风扇机匣上。

Description

一种进气道防火密封结构
技术领域
本发明涉及密封结构,具体涉及一种进气道防火密封结构。
背景技术
APU工作过程中会产生剧烈的振动,通常APU进气道与APU之间采用柔性补偿连接,而飞机APU舱为飞机指定火区,应当避免因APU着火,火焰通过APU 进气道与APU之间的连接进入APU舱,因此APU进气道与APU之间不仅要进行柔性连接,来补偿APU工作时进气道与APU之间产生的相对位移,还应当具备防火功能避免APU着火对APU舱的影响。
发明内容
本发明设计了一种进气道防火密封结构,能够补偿APU进气道与APU 之间的相对位移。
本申请提供一种进气道防火密封结构,所述进气道防火密封结构包括辅助动力装置APU进气道1,防火密封件2、辅助动力装置APU3、压板4、进气道法兰5和APU集气法兰6,其中:
APU进气道1为流道结构,防火密封件2为环形结构,所述防火密封件2 包括进气道端连接边21、波浪22、APU端挤压边23和防脱头24,进气道端连接边21为所述防火密封件2沿进气方向剖面的上端,波浪22为所述防火密封件2沿进气方向剖面的中间挤压段,APU端挤压边23为所述防火密封件2沿进气方向剖面的下端,防脱头24为设置在APU端挤压边23下的钩状结构,进气道法兰5设置在辅助动力装置APU进气道1的端头外部,APU集气法兰6设置在APU3的风扇机匣上,所述防火密封件2的进气道端连接边21通过压板4与 APU进气道1机械连接,防火密封件2的APU端挤压边23和防脱头24挤压在 APU集气法兰6上。
优选的,防火密封件2包括氟硅橡胶和织物复合密封件。
优选的,防火密封件2的织物层数和密封件厚度根据防火要求设置。
优选的,所述波浪22为波浪形,波浪22的波浪数目N和波浪高度L均根据位移补偿的方向及大小进行设置。
优选的,利用螺栓或铆钉将防火密封件2的进气道端连接边21、压板4与 APU进气道1机械连接。
优选的,APU端挤压边23与APU集气法兰6的端面贴合挤压。
优选的,防脱头24卡在APU集气法兰6的翻边。
优选的,所述波浪22为波浪形,波浪22的波浪角度D根据位移补偿的方向及大小进行设置。
本发明设计了一种进气道防火密封结构,用于飞机APU进气道与APU 之间的连接,可用来补偿APU进气道与APU之间的相对位移,并防止APU着火后,火焰从APU进气道进入APU舱内。与现有技术相比,本发明所具有:位移补偿大,设计自由度高和连接可靠便于拆装更换的优点。
附图说明
图1为本申请实施例提供的进气道防火密封结构示意图;
图2为本申请实施例提供的第一种防火密封结构剖面示意图;
图3为本申请实施例提供的第二种防火密封结构剖面示意图;
图4为本申请实施例提供的防火密封结构剖面的对比示意图;
其中:1-APU进气道、2-防火密封件、3-APU、4-压板、5-进气道法兰;6-APU 集气法兰、21-进气道端连接边;22-波浪;23-APU端挤压边;24-防脱头。
具体实施方式
本发明涉及一种进气道防火密封结构,用于飞机APU舱等振动严酷区域内进气道与APU之间的防火密封。
一种进气道防火密封结构,用于飞机APU进气道1与APU之间的连接,可用来补偿APU进气道与APU之间的相对位移,并防止火焰从APU进气道进入APU 舱内。该防火密封结构由APU进气道1,防火密封件2和APU3组成。
APU进气道1是APU工作所需空气的流道,需保证足够的进气面积和空气压力,在APU进气道1端头设置进气道法兰5,用于与进气道法兰5的连接。
防火密封件2使用氟硅橡胶和织物复合而成,由进气道端连接边21、波浪 22、APU端挤压边23和防脱头24组成,织物层数和密封件厚度可根据防火要求自主设计,防火密封件2为波浪形,波浪数目N,波浪高度L以及波浪角度D 均可根据位移补偿的方向及大小要求进行自由设计。
APU3端头设计APU集气法兰6用于与进气道法兰5的连接。
APU进气道1通过压板4使用螺栓或铆钉与防火密封件2的进气道端连接边21机械连接,防火密封件2利用自身的弹性通过APU端挤压边23与APU集气法兰6的端面贴合挤压,并通过防脱头24卡在APU集气法兰6的翻边,完成防火密封件2与APU3的连接。
下面对本发明作进一步详细说明。
一种进气道防火密封结构,用于飞机APU进气道1与APU之间的连接,可用来补偿APU进气道与APU之间的相对位移,并防止火焰从APU进气道进入APU 舱内。该防火密封结构由APU进气道1,防火密封件2和APU3组成,如图1所示。
APU进气道1是APU工作所需空气的流道,需保证足够的进气面积和空气压力,在APU进气道1端头设置进气道法兰5,用于与进气道法兰5的连接,如图2、3所示。
防火密封件2使用氟硅橡胶和织物复合而成,由进气道端连接边21、波浪 22、APU端挤压边23和防脱头24组成,织物层数和密封件厚度可根据防火要求自主设计,防火密封件2为波浪形,波浪数目N,波浪高度L以及波浪角度D 均可根据位移补偿的方向及大小要求进行自由设计。
APU3端头设计APU集气法兰6用于与进气道法兰5的连接。
APU进气道1通过压板4使用螺栓或铆钉与防火密封件2的进气道端连接边21机械连接,防火密封件2利用自身的弹性通过APU端挤压边23与APU集气法兰6的端面贴合挤压,并通过防脱头24卡在APU集气法兰6的翻边,完成防火密封件2与APU3的连接。

Claims (2)

1.一种进气道防火密封结构,其特征在于,所述进气道防火密封结构用于飞机APU舱内进气道与APU之间的防火密封,包括辅助动力装置APU进气道(1),防火密封件(2)、辅助动力装置APU(3)、压板(4)、进气道法兰(5)和APU集气法兰(6),其中:
APU进气道(1)为流道结构,防火密封件(2)为环形结构,所述防火密封件(2)包括进气道端连接边(21)、波浪(22)、APU端挤压边(23)和防脱头(24),进气道端连接边(21)为所述防火密封件(2)沿进气方向剖面的上端,波浪(22)为所述防火密封件(2)沿进气方向剖面的中间挤压段,APU端挤压边(23)为所述防火密封件(2)沿进气方向剖面的下端,防脱头(24)为设置在APU端挤压边(23)下的钩状结构,进气道法兰(5)设置在辅助动力装置APU进气道(1)的端头外部,APU集气法兰(6)设置在APU(3)的风扇机匣上,所述防火密封件(2)的进气道端连接边(21)通过压板(4)与APU进气道(1)机械连接,防火密封件(2)的APU端挤压边(23)和防脱头(24)挤压在APU集气法兰(6)上;APU进气道(1)通过压板(4)使用螺栓或铆钉与防火密封件(2)的进气道端连接边(21)机械连接,防火密封件(2)利用自身的弹性通过APU端挤压边(23)与APU集气法兰(6)的端面贴合挤压,并通过防脱头(24)卡在APU集气法兰(6)的翻边,完成防火密封件(2)与APU(3)的连接;APU端挤压边(23)与APU集气法兰(6)的端面贴合挤压;防火密封件(2)包括氟硅橡胶和织物复合密封件;防火密封件(2)的织物层数和密封件厚度根据防火要求设置;所述波浪(22)为波浪形,波浪(22)的波浪数目N和波浪高度L均根据位移补偿的方向及大小进行设置;利用螺栓或铆钉将防火密封件(2)的进气道端连接边(21)、压板(4)与APU进气道(1)机械连接;防脱头(24)卡在APU集气法兰(6)的翻边。
2.根据权利要求1所述的进气道防火密封结构,其特征在于,所述波浪(22)为波浪形,波浪(22)的波浪角度D根据位移补偿的方向及大小进行设置。
CN201911358525.1A 2019-12-25 2019-12-25 一种进气道防火密封结构 Active CN111120656B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911358525.1A CN111120656B (zh) 2019-12-25 2019-12-25 一种进气道防火密封结构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911358525.1A CN111120656B (zh) 2019-12-25 2019-12-25 一种进气道防火密封结构

Publications (2)

Publication Number Publication Date
CN111120656A CN111120656A (zh) 2020-05-08
CN111120656B true CN111120656B (zh) 2022-05-27

Family

ID=70502287

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911358525.1A Active CN111120656B (zh) 2019-12-25 2019-12-25 一种进气道防火密封结构

Country Status (1)

Country Link
CN (1) CN111120656B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112623236B (zh) * 2020-12-29 2022-11-22 中国航空工业集团公司西安飞机设计研究所 一种多方向飞机进气道密封补偿结构及结构参数确定方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202884009U (zh) * 2012-11-15 2013-04-17 东风汽车股份有限公司 钣金件橡胶堵盖
CN204776043U (zh) * 2015-05-13 2015-11-18 中国直升机设计研究所 一种进气道密封装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1201096A (en) * 1966-11-15 1970-08-05 United Aircraft Corp Air particle separator
GB1312619A (en) * 1969-10-03 1973-04-04 Secr Defence Air intakes for gas turbine engines
CN2572177Y (zh) * 2002-09-16 2003-09-10 王振孝 活性接轮
CN200975264Y (zh) * 2006-09-12 2007-11-14 赵岫华 迷宫密封
FR2931521B1 (fr) * 2008-05-26 2017-06-23 Turbomeca Couvercle de compresseur a butee axiale.
CN201474739U (zh) * 2009-07-30 2010-05-19 詹炳岳 改进的转盘配气内燃机配气密封机构
ES2709896T3 (es) * 2010-09-24 2019-04-22 Airbus Operations Sl Fuselaje trasero de una aeronave
US8235170B1 (en) * 2011-04-29 2012-08-07 Honeywell International Inc. Integrated tailcone muffler assemblies and methods
CN103612747B (zh) * 2013-11-27 2016-02-24 中国航空工业集团公司西安飞机设计研究所 一种发动机短舱密封防火组件
US10077669B2 (en) * 2014-11-26 2018-09-18 United Technologies Corporation Non-metallic engine case inlet compression seal for a gas turbine engine
CN204606222U (zh) * 2015-04-02 2015-09-02 中国航空工业集团公司沈阳发动机设计研究所 用于飞机上面的密封连接机构
CN206318026U (zh) * 2016-12-14 2017-07-11 中航通飞研究院有限公司 一种飞机短舱防火墙密封结构
CN106907244A (zh) * 2017-05-04 2017-06-30 中国航空工业集团公司西安飞机设计研究所 一种发动机进气道柔性连接结构
CN108204458A (zh) * 2018-02-10 2018-06-26 无锡市晋业航空安全设备有限公司 一种防腐型apu舱隔板密封条

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202884009U (zh) * 2012-11-15 2013-04-17 东风汽车股份有限公司 钣金件橡胶堵盖
CN204776043U (zh) * 2015-05-13 2015-11-18 中国直升机设计研究所 一种进气道密封装置

Also Published As

Publication number Publication date
CN111120656A (zh) 2020-05-08

Similar Documents

Publication Publication Date Title
CN111120656B (zh) 一种进气道防火密封结构
EP2163748B1 (en) Integrated inlet fan case
US6138949A (en) Main rotor pylon support structure
EP3489947A1 (en) Acoustic panel with structural septum
CN105283310A (zh) 用于衰减来自气流的噪声的超塑成形/扩散结合结构
CN102369137A (zh) 中央机身折棚
US20110290935A1 (en) Method of manufacture by superplastic forming and by fishplating of a rib for an aerodynamic fairing of an aircraft engine mounting pylon
CN102849215A (zh) 飞行器发动机的连接支柱的后流线型整流罩
US9725183B2 (en) Pylon with noise attenuating fairing
US20180362142A1 (en) Panel for an aircraft structure
EP2551462B1 (en) Turbine with flap seal
EP1529950A1 (en) Method and apparatus for arresting a crack within an exhaust nozzle flap seal body
EP3382179B1 (en) Gas turbine engine
CN111439396B (zh) 一种可分离式导流管对接装置
JP6654984B2 (ja) 作業用テント
CN212479400U (zh) 一种发动机增压器入口用密封垫
CN220951878U (zh) 一种拉链式防尘软连接设备
US20230278696A1 (en) Metallic structures with additively manufactured metallic articles and methods for fabrication
CN212289435U (zh) 一种穿过汽车前围钣金的空调管路固定密封结构
EP3054205B1 (en) A duct system comprising a shield and flange support for a duct
CN217598560U (zh) 一种轨道车辆的地板及检修盖板
RU207079U1 (ru) Корпус разделителя потоков авиационного газотурбинного двигателя
CN213452254U (zh) 一种双向c型金属封严环
CN219115703U (zh) 一种用于保护穿过防火墙的杆件组件的结构
CN211648371U (zh) 一种风力发电机机舱罩

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant