CN102673792A - Cocoon packaged fire-proof cover of auxiliary power unit - Google Patents
Cocoon packaged fire-proof cover of auxiliary power unit Download PDFInfo
- Publication number
- CN102673792A CN102673792A CN2012101889057A CN201210188905A CN102673792A CN 102673792 A CN102673792 A CN 102673792A CN 2012101889057 A CN2012101889057 A CN 2012101889057A CN 201210188905 A CN201210188905 A CN 201210188905A CN 102673792 A CN102673792 A CN 102673792A
- Authority
- CN
- China
- Prior art keywords
- silk cocoon
- cocoon
- power unit
- auxiliary power
- upper shell
- 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.)
- Granted
Links
Images
Landscapes
- Building Environments (AREA)
Abstract
The invention belongs to the technical field of aviation, and relates to a cocoon packaged fire-proof cover of an auxiliary power unit. The cocoon packaged fire-proof cover of the auxiliary power unit comprises an upper cocoon and a lower cocoon. The upper cocoon comprises an upper butting edges, a reinforced frame, installation rings and an upper shell; the upper butting edge is installed on a side frame of the bottom part of the upper shell through bolts, the two installation rings are arranged on the upper surface of the upper shell, and the reinforced frame is installed between the two installation rings which are arranged on the upper surface of the upper shell. The lower cocoon comprises a lower butting side and a lower shell; and the lower butting side is arranged on the side frame of the top of the lower shell. The upper cocoon and the lower cocoon are butted through the upper butting edge and the lower butting edge to form the cocoon packaged fire-proof cover of the auxiliary power unit. The upper cocoon, the lower cocoon and a P-type sealing ring form the cocoon packaged fire-proof cover, so the structure is compact, the weight is light, the maintenance is convenient, and the sealing performance is good. Simultaneously the design of a fire extinguishing system can be simplified, the use quantity of fire extinguishing agents can be reduced, and fire and noises of the auxiliary power unit can be effectively prevented.
Description
Technical field
The invention belongs to the aeronautical technology field, relate to a kind of silk cocoon packaging type auxiliary power unit flameproof enclosure.
Background technology
According to separating with fireproof brickwork between airworthiness standard CCAR25 auxiliary power unit and the aircaft configuration.Existing aircraft generally is provided with distinct area in the cabin, and with dividing plate auxiliary power unit and other zones of aircraft is separated.Yet it is bigger to be provided for isolating the required space of auxiliary power unit in the cabin specially, and smart detection of fire and fire-fighting equipment are arranged comparatively complicacy in the cabin, and sound insulation value is relatively poor.
Summary of the invention
The present invention seeks to: a kind of simple in structure, convenient disassembly is provided and has the silk cocoon packaging type auxiliary power unit flameproof enclosure that reduces fire prevention design complexities and decrease of noise functions.
Technical scheme of the present invention is: a kind of silk cocoon packaging type auxiliary power unit flameproof enclosure, and it comprises silk cocoon and following silk cocoon; Last silk cocoon comprises edge fit, reinforced bulkhead, installation ring, upper shell; Upper shell is for being the semi-cylindrical in configuration of hollow; The surface offers and is used for the through hole that the auxiliary power unit pipeline passes through, and goes up edge fit is installed on the frame of upper shell bottom through bolt, goes up the framework that the edge fit bottom is provided with " several " font that is used to provide support; Two installation rings are as load-carrying member; Be arranged on the upper surface of upper shell, and be equipped with on the installation ring and be used for and aircaft configuration bonded assembly installation ring joint, reinforced bulkhead is installed between two installation rings in upper shell surface as the skeleton structure of upper shell;
To edge fit and lower house, down edge fit is arranged on lower house top frame under following silk cocoon comprises, last silk cocoon docks formation silk cocoon packaging type auxiliary power unit flameproof enclosure through upper and lower to edge fit with following silk cocoon.
The upper and lower of described upward silk cocoon and following silk cocoon passes through bolted connection to edge fit, and the junction is pressed with the P RunddichtringO.
The upper shell surface offers the hole of passing through that is used for auxiliary power unit inlet channel, cooling air inlet pipe, fire-fighting pipeline and fuel line.
Lower shell surface offers cold gas exhausr port, oil-filler door, maintenance flap, oil leakaging port.
The said silk cocoon of going up is that corrosion-resistant steel is processed with following silk cocoon upper shell, and the two all is connected with the exhaust system mounting flange.
Advantageous effect of the present invention: the present invention adopts stainless steel sheet that auxiliary power unit is wrapped up as silk cocoon, effectively plays anti-fire action; The flameproof enclosure spatiality can effectively reduce the use amount of fire extinguishing agent; The leak tightness of flameproof enclosure has improved the efficient of fire extinguishing, has also reduced noise; Flameproof enclosure is designed with row's small opening, guarantees that device interior does not have fluid and accumulates; Installation ring on the flameproof enclosure on the silk cocoon and reinforced bulkhead have constituted the parts of actv. load and transmitted load.
At present, the domestic precedent of still not having this series products of design.The present invention is domestic independent research first and the auxiliary power unit that is applied to model fire prevention noise reducing apparatus, all belongs to original technology at aspects such as method of designing, structure, technologies, has bigger actual application value.
Description of drawings
Fig. 1 silk cocoon packaging type of the present invention auxiliary power unit flameproof enclosure structural representation, wherein: installation ring 3; Reinforced bulkhead 4; Go up edge fit 5; Upper shell 6; Installation ring joint 7; Lower house 10.
Fig. 2 is last silk cocoon structural representation, wherein: go up silk cocoon 1.
Fig. 3 is the scrap detail view of Fig. 2, wherein: P RunddichtringO 8.
Fig. 4 is the cutaway view of Fig. 3, wherein: go up edge fit 5; P RunddichtringO 8.
Fig. 5 is following silk cocoon, wherein: following silk cocoon 2; Down to edge fit 9; Lower house 10.
The specific embodiment
Below in conjunction with accompanying drawing invention is elaborated.
See also Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, it is the structural representation of silk cocoon packaging type auxiliary power unit flameproof enclosure of the present invention.Said silk cocoon packaging type auxiliary power unit flameproof enclosure is made up of with following silk cocoon 2 last silk cocoon 1.Wherein, last silk cocoon 1 comprises edge fit 5, installation ring joint 3, P RunddichtringO 8, installation ring 5, reinforced bulkhead 4 and upper shell 6.Following silk cocoon 2 comprises lower house 10, following to edge fit 9.
Said upward silk cocoon 1 upper shell 6 is the semi-cylindrical in configuration of hollow, and it is connected with the mounting flange of exhaust system.This upper shell 1 surface offers the hole of passing through that is used for auxiliary power unit inlet channel, cooling air inlet pipe, fire-fighting pipeline and fuel line.Upward edge fit 5 is installed on the upper shell 6 bottom frames through bolt, goes up the framework that edge fit 5 bottoms is provided with " several " font, when up and down edge fit being installed, to provide support.Two installation rings 3 are riveted on the upper surface of upper shell 6 as load-carrying member, and are equipped with on the installation ring 3 and are used for and aircaft configuration bonded assembly installation ring joint 7, to give aircaft configuration with loading transfer.Said reinforced bulkhead 4 is installed between two installation rings 3 in upper shell surface as the skeleton structure of upper shell.Said P RunddichtringO 8 is fitted on the upper shell 6 bottom frames edge fit 5 through last, and is with the sealing that achieves a butt joint, as shown in Figure 4.
See also Fig. 5, it is the structural representation of following silk cocoon.Said silk cocoon lower house planform down and auxiliary power unit and installing space are complementary, and it is connected with the mounting flange of exhaust system.This lower shell surface offers cold gas exhausr port, oil-filler door, maintenance flap, oil leakaging port according to actual needs.Said is L shaped to edge fit 9 down, through bolted connection at the top of lower house frame.
The described silk cocoon 1 of going up is 1.0mm with following silk cocoon 2 thickness of shell, adopts stainless steel material to process, and to the butt joint of edge fit, and passes through locked with bolts through up and down, is wrapped to form the flameproof enclosure that is of a size of long 1400mm, wide 850mm and high 710mm.
The present invention utilizes silk cocoon, following silk cocoon and the P RunddichtringO is installed and forms silk cocoon parcel shape flameproof enclosure; Silk cocoon packaging type auxiliary power unit flameproof enclosure compact conformation of the present invention, in light weight, easy to maintenance; Good seal performance; Can simplify simultaneously the setting of fire extinguishing system, reduce the use amount of fire extinguishing agent, actv. to auxiliary power unit prevent fires, noise isolation.
Claims (5)
1. a silk cocoon packaging type auxiliary power unit flameproof enclosure is characterized in that, flameproof enclosure comprises silk cocoon (1) and following silk cocoon (2); Last silk cocoon (1) comprises edge fit (5), reinforced bulkhead (4), installation ring (3), upper shell (6); Upper shell (6) is the semi-cylindrical in configuration of hollow; The surface offers and is used for the through hole that the auxiliary power unit pipeline passes through; Go up edge fit (5) is installed on the frame of upper shell (6) bottom; Go up the framework that edge fit (4) bottom is provided with " several " font that is used to provide support, two installation rings (3) are arranged on the upper surface of upper shell (6) as load-carrying member; And be equipped with on the installation ring (3) and be used for and aircaft configuration bonded assembly installation ring joint (7), reinforced bulkhead (4) is installed between upper shell two installation rings in surface (3) as the skeleton structure of upper shell (6);
Following silk cocoon (2) comprises down edge fit (9) and lower house (10); Down edge fit (8) is arranged on lower house top frame, last silk cocoon (1) and following silk cocoon (2) form silk cocoon packaging type auxiliary power unit flameproof enclosure through last to edge fit (5) and following edge fit (9) is docked.
2. silk cocoon packaging type auxiliary power unit flameproof enclosure according to claim 1 is characterized in that, described upward silk cocoon (1) and the upper and lower of following silk cocoon (2) pass through bolted connection to edge fit, and the junction is pressed with P RunddichtringO (8).
3. cocoon packaging type auxiliary power unit flameproof enclosure according to claim 2 is characterized in that, the upper shell surface offers the hole of passing through that is used for auxiliary power unit inlet channel, cooling air inlet pipe, fire-fighting pipeline and fuel line.
4. silk cocoon packaging type auxiliary power unit flameproof enclosure according to claim 3 is characterized in that lower house (10) surface offers cold gas exhausr port, oil-filler door, maintenance flap, oil leakaging port.
5. silk cocoon packaging type auxiliary power unit flameproof enclosure according to claim 4 is characterized in that, said upward silk cocoon (1) and following silk cocoon (2) housing are that corrosion-resistant steel is processed, and the two all is connected with the exhaust system mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188905.7A CN102673792B (en) | 2012-06-08 | 2012-06-08 | Cocoon packaged fire-proof cover of auxiliary power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188905.7A CN102673792B (en) | 2012-06-08 | 2012-06-08 | Cocoon packaged fire-proof cover of auxiliary power unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102673792A true CN102673792A (en) | 2012-09-19 |
| CN102673792B CN102673792B (en) | 2014-12-24 |
Family
ID=46806486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210188905.7A Active CN102673792B (en) | 2012-06-08 | 2012-06-08 | Cocoon packaged fire-proof cover of auxiliary power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102673792B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874402A (en) * | 2012-09-25 | 2013-01-16 | 襄阳宏伟航空器有限责任公司 | Airtight pressure-charged hot-gas floating platform |
| CN105065819A (en) * | 2015-07-17 | 2015-11-18 | 中国商用飞机有限责任公司 | Fireproof flexible connection structure between two pipe sections |
| CN105452105A (en) * | 2013-07-01 | 2016-03-30 | 埃尔塞乐公司 | Device for assisting in the manoeuvring of a cover and turbojet engine nacelle equipped with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2261730C (en) * | 1996-08-02 | 2006-04-04 | Alliedsignal Inc. | Detachable integral aircraft tailcone and power assembly |
| EP1918203B1 (en) * | 2006-10-31 | 2010-03-31 | Airbus Operations S.L. | Tail cone for aircraft with movable fairing and support structure for auxiliary power unit and the ancillary elements thereof |
| CN201972764U (en) * | 2011-02-15 | 2011-09-14 | 中国航空工业集团公司西安飞机设计研究所 | Exhaust muffler utilizing nonlocal reaction acoustic liner principle for auxiliary power unit |
-
2012
- 2012-06-08 CN CN201210188905.7A patent/CN102673792B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2261730C (en) * | 1996-08-02 | 2006-04-04 | Alliedsignal Inc. | Detachable integral aircraft tailcone and power assembly |
| EP1918203B1 (en) * | 2006-10-31 | 2010-03-31 | Airbus Operations S.L. | Tail cone for aircraft with movable fairing and support structure for auxiliary power unit and the ancillary elements thereof |
| CN201972764U (en) * | 2011-02-15 | 2011-09-14 | 中国航空工业集团公司西安飞机设计研究所 | Exhaust muffler utilizing nonlocal reaction acoustic liner principle for auxiliary power unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874402A (en) * | 2012-09-25 | 2013-01-16 | 襄阳宏伟航空器有限责任公司 | Airtight pressure-charged hot-gas floating platform |
| CN102874402B (en) * | 2012-09-25 | 2015-06-03 | 襄阳宏伟航空器有限责任公司 | Airtight pressure-charged hot-gas floating platform |
| CN105452105A (en) * | 2013-07-01 | 2016-03-30 | 埃尔塞乐公司 | Device for assisting in the manoeuvring of a cover and turbojet engine nacelle equipped with same |
| CN105065819A (en) * | 2015-07-17 | 2015-11-18 | 中国商用飞机有限责任公司 | Fireproof flexible connection structure between two pipe sections |
| CN105065819B (en) * | 2015-07-17 | 2017-10-24 | 中国商用飞机有限责任公司 | Fireproof flexible attachment structure between two pipeline sections |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102673792B (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8070093B2 (en) | Turbojet engine mounting structure for aircraft | |
| EP2792597B1 (en) | Inner cowl structure for aircraft turbine engine | |
| CN102673792B (en) | Cocoon packaged fire-proof cover of auxiliary power unit | |
| CN201681160U (en) | Radiation environment monitoring station | |
| CN201980610U (en) | Seal ring ventilation and explosion suppression device of floating-roof oil tank | |
| CN111252256A (en) | Electric aircraft system based on battery encapsulation | |
| CN108879350B (en) | Lightweight fire-resistant electrical cabinet device | |
| CN103507961A (en) | Aircraft air inlet diverter assemblies with improved aerodynamic characteristics | |
| US9453595B2 (en) | Drain mast seal having segregated chambers | |
| CN202194666U (en) | Split communicated type airlock for shield machine | |
| CN101762819B (en) | Radiation environment monitoring station | |
| CN102679150B (en) | Ventilation and explosion suppression device for seal ring of floating roof tank | |
| CN106439298A (en) | Air duct sealed docking device | |
| JP6661369B2 (en) | Seat between high-temperature duct and structural member of aircraft, aircraft duct structure, and aircraft | |
| CN102991683B (en) | Onboard pod body for helicopter | |
| CN201907632U (en) | Multifunctional structural box | |
| CN202280476U (en) | Movable escape capsule | |
| CN208382526U (en) | A kind of nuclear power station ventilating system duct type silencer of removable antidetonation | |
| CN207814586U (en) | A kind of dust nonflame bleeder | |
| CN203254928U (en) | Noise reduction and ventilation inner cover | |
| CN202928057U (en) | Color steel composite plate plenum chamber | |
| US20140084107A1 (en) | Flexible and fireproof APU drainage device | |
| CN211902024U (en) | Device for eliminating gasification phenomenon in conveying pipeline of LNG (liquefied Natural gas) station | |
| CN107472505B (en) | Fireproof sealing plate for aircraft truss structure | |
| CN103470300B (en) | A kind of modular Novel mine rescue capsule |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |