CN207712300U - A kind of anti-deicing structure - Google Patents
A kind of anti-deicing structure Download PDFInfo
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- CN207712300U CN207712300U CN201721102885.1U CN201721102885U CN207712300U CN 207712300 U CN207712300 U CN 207712300U CN 201721102885 U CN201721102885 U CN 201721102885U CN 207712300 U CN207712300 U CN 207712300U
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- exterior skin
- cavity
- inside panel
- air inlet
- inlet pipeline
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Abstract
The utility model is related to aircraft body structure design, more particularly to a kind of anti-deicing structure.Anti- deicing structure includes exterior skin, inside panel, air inlet pipeline, partition board and exhaust outlet；Inside panel is arranged inside exterior skin, and is integrally formed component with exterior skin；Partition board is fixed at the open end of exterior skin, is integrally formed component with exterior skin, and inside panel constitutes the first cavity with exterior skin, and partition board constitutes the second cavity with inside panel, the first venthole is provided between the first cavity and the second cavity；Air inlet pipeline is located in the first cavity, and is integrally formed component with inside panel, and the second venthole is offered on air inlet pipeline；Exhaust outlet is opened on partition board.The anti-deicing structure of the utility model is global facility, eliminates high-temperature region fastener, fundamentally solves fastener and falls off the security risk brought, also, the whole anti-deicing structure of leading edge can shorten the production cycle, cost-effective.
Description
Technical field
The utility model is related to aircraft body structure design, more particularly to a kind of anti-deicing structure.
Background technology
It, can be because in cloud layer on certain component windward sides when aircraft flies through icing cloud with subsonic speed below 10km height
Super-cooling waterdrop hits, gathers and freeze.The icing of aerofoil leading edge changes aerofoil shape, keeps aerofoil surfaces Air Boundary Layer turbulent
Change, pneumatic quality is caused to deteriorate, drop in lift, resistance increase and critical angle of attack is reduced.Engine inlets leading edge freeze, make into
The air capacity for entering engine reduces, and then motor power is made to decline.Ice sheet, which falls off, can injure the even damage of compressor flow deflector
Whole engine.
Contemporary aircraft mainly uses the anti-deicing of hot gas and the anti-deicing of electric heating.By aircraft electric power power limit, aircraft is adopted at present
It is the anti-deicing of hot gas with more anti-de-icing method.Usually there are two types of structure, the i.e. anti-deicing of single layer hot gas for the anti-deicing structure of hot gas
Structure and the anti-deicing structure of the double-deck hot gas.
Single layer structure is mainly made of exterior skin, air inlet pipeline, partition board and exhaust outlet.There are three aspects to ask for such structure
Topic, first, the component layouts such as bulkhead and rib are less or without arrangement inside exterior skin, thus when exterior skin stand under load due to
Stability problem causes exterior skin thickness thicker, unfavorable to structural weight reduction；Secondly, the selection for air inlet pipeline, due to China
It is optional currently without ripe titanium alloy pipe, steel tubular goods can only be selected, construction weight is increased；Finally, due to most of
Hot gas, which enters after cavity, does not carry out sufficient heat exchange with exterior skin just from exhaust outlet discharge, therefore heat utilization efficiency is not high.
The double-deck anti-deicing structure of hot gas is mainly by exterior skin, inside panel, gap gasket, air inlet pipeline, partition board and exhaust outlet
Composition；The advantages of such structure is by repeatedly being utilized to gas flow design and hot gas, improving hot gas utilization rate.Meanwhile
Due to the design of double-layer interlayer structure, the stability of covering is also effectively increased.The disadvantage is that mainly having three aspects, first, due to zero
Number of packages amount is more, and External Shape is complicated, leads to that the production cycle is long, craftsmanship is poor, yield rate is low；Second is that limited by technique, it is overweight bright
It is aobvious.Since temperature condition limits, covering generally use Ti SPF Technology manufacture, by skin part due to curved after forming
The thinned limitation in angle, need to increase covering raw thickness, cause part overweight.In addition air inlet pipeline selects steel tubular goods mostly, leads
Construction weight is caused to further increase；Third, there are fasteners to cut since Thermal-mechanical Coupling is acted on for fastener of the composite structure in high-temperature region
The disconnected risk to fall off can generate damage risk if it is engine inlets leading edge to engine.Therefore, the double-deck hot gas is prevented and kill off
The craftsmanship of ice structure and safety are always an important factor for restricting its development.
Invention content
The purpose of the utility model is to provide a kind of anti-deicing structures, to solve existing for existing anti-deicing structure at least
One problem.
The technical solution of the utility model is：
A kind of anti-deicing structure, including exterior skin, inside panel, gap gasket, air inlet pipeline, partition board and exhaust outlet；
The inside panel is arranged inside the exterior skin, and is integrally formed component with the exterior skin；
The partition board is fixed at the open end of the exterior skin, is integrally formed component with the exterior skin, described
Inside panel and the exterior skin constitute the first cavity, and the partition board and the inside panel constitute the second cavity, the inside panel with
The exterior skin junction offers the first venthole for being connected to first cavity and the second cavity；
The air inlet pipeline is located in first cavity, and is integrally formed component with the inside panel, the air inlet
The second venthole is offered on pipeline；
The exhaust outlet is opened on the partition board, for second cavity to be in communication with the outside.
Preferably, the anti-deicing structure further includes：
Exhaust passage, setting is being between the inside panel and the exterior skin, and one end is connected to first cavity, separately
One end is connected to first venthole.
Preferably, second number of air hole is multiple, is located at the side backwards to the partition board on the air inlet pipeline,
It is uniformly distributed along the air inlet pipeline axis direction.
Preferably, the air inlet pipeline is made with the inside panel of titanium alloy material.
The utility model has the advantage of：
The anti-deicing structure of the utility model is global facility, eliminates high-temperature region fastener, is fundamentally solved tight
Firmware falls off the security risk brought, also, the whole anti-deicing structure of leading edge can shorten the production cycle, cost-effective.
Description of the drawings
Fig. 1 is the structure sectional view of the anti-deicing structure of the utility model.
Specific implementation mode
To keep the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.In the accompanying drawings, from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Described reality
It is the utility model a part of the embodiment to apply example, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
It is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply and is signified
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this practicality
The limitation of novel protected range.
1 pair of anti-deicing structure of the utility model is described in further details below in conjunction with the accompanying drawings.
The utility model provide a kind of anti-deicing structure, including exterior skin 1, inside panel 2, air inlet pipeline 3, partition board 4 with
And exhaust outlet 5.
Specifically, inside panel 2 is arranged inside exterior skin 1, and is integrally formed component with exterior skin 1；Existing explanation
It is that inside panel 2, the shape of exterior skin 1 and the partition board 4 that will subsequently describe, thickness etc. are referred to known a variety of suitable
The anti-deicing structure closed is configured, and is repeated no more.
Partition board 4 is fixed at the open end of exterior skin 1, is integrally formed component with exterior skin 1；Inside panel 2 and outer illiteracy
Skin 1 constitutes the first cavity 71, and partition board 4 constitutes the second cavity 62 with inside panel 2, and inside panel 2 offers company with 1 junction of exterior skin
First venthole 11 of logical first cavity 61 and the second cavity 62.Further, can also be interior in other preferred embodiments
Exhaust passage is set between covering 2 and exterior skin 1, and exhaust passage one end is connected to the first cavity 61, the other end and the first ventilation
Hole 11 is connected to, to increase air-flow stroke so that hot deicing effect is more preferable.
Air inlet pipeline 3 is located in the first cavity 61, and is integrally formed component with inside panel 2, is offered on air inlet pipeline 3
Second venthole 31.Further, air inlet pipeline 3 can select a variety of suitable materials, this implementation as needed with inside panel 2
In example, preferably air inlet pipeline 3 is made with inside panel 2 of titanium alloy material so that is on the one hand subtracted with respect to raw steel air inlet pipeline
Light weight, on the other hand due to being same material, junction thermal stress will reduce.In addition, 31 quantity of the second venthole
It can carry out suitable selection as needed, it is preferably several in the present embodiment；Multiple second ventholes 31 are located at air inlet pipeline 3
The side of upper partition board 4 backwards, and be uniformly distributed along 3 axis direction of air inlet pipeline, so that heating effect improves.
Exhaust outlet 5 is opened on partition board 4, for the second cavity 62 to be in communication with the outside.
The anti-deicing structure operation principle of the utility model is as follows：
Engine hot gas is entered by the second venthole 31 being distributed on air inlet pipeline 3 in the first cavity 61, high temperature hot gas
Covering can be heated；Then, exhaust passage of the high-temperature gas in entirety between exterior skin and the first venthole 11 enter the
In two cavitys 62, high-temperature gas continues to heat covering；Then, gas collects to form time High Temperature Gas in the second cavity 62
Body, continues to heat structure, especially be heated to covering inner surface, improves the thermal efficiency of gas in whole covering gap indirectly；
Finally, exhaust gas is discharged through exhaust outlet 5.
The anti-deicing structure of the utility model, gap (i.e. exhaust passage) size and shape between interior exterior skin can basis
Leading edge structure stability and anti-deicing heat flow density demand carry out Synthetical Optimization, that is, improve structural bearing efficiency, and energy
Improve hot gas utilization ratio.The former material of air inlet pipeline and inside panel are titanium alloy materials, on the one hand with respect to raw steel air inlet pipeline
Weight is alleviated, on the other hand due to being same material, junction thermal stress will reduction.Due to being global facility, cancel
High-temperature region fastener fundamentally solves fastener and falls off the security risk brought.
In conclusion the anti-deicing structure of the utility model, by arranging two hot gas cavitys and with hot gas runner
The double-deck covering improves structural bearing efficiency and hot gas utilization rate.By part integration, eliminates fastener and fall off risk, eliminate
Flight safety hidden danger, also, the whole anti-deicing structure of leading edge shortens the production cycle, and it is cost-effective.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with described
Subject to scope of the claims.
Claims (4)
1. a kind of anti-deicing structure, which is characterized in that including exterior skin (1), inside panel (2), air inlet pipeline (3), partition board (4) with
And exhaust outlet (5)；
The inside panel (2) setting is internal in the exterior skin (1), and is integrally formed component with the exterior skin (1)；
The partition board (4) is fixed at the open end of the exterior skin (1), is integrally formed component with the exterior skin (1),
The inside panel (2) and the exterior skin (1) constitute the first cavity (61), and the partition board (4) and the inside panel (2) constitute the
Two cavitys (62), the inside panel (2) offer with the exterior skin (1) junction and are connected to first cavity (61) and second
The first venthole (11) of cavity (62)；
The air inlet pipeline (3) is located in first cavity (61), and is integrally formed component with the inside panel (2), institute
It states and offers the second venthole (31) on air inlet pipeline (3)；
The exhaust outlet (5) is opened on the partition board (4), for second cavity (62) to be in communication with the outside.
2. anti-deicing structure according to claim 1, which is characterized in that further include：
Exhaust passage, setting are being one end and first cavity (61) between the inside panel (2) and the exterior skin (1)
Connection, the other end are connected to first venthole (11).
3. anti-deicing structure according to claim 1, which is characterized in that the second venthole (31) quantity be it is multiple,
Backwards to the side of the partition board (4) on the air inlet pipeline (3), along the air inlet pipeline (3), axis direction is uniformly distributed.
4. anti-deicing structure according to claim 1, which is characterized in that the air inlet pipeline (3) and the inside panel (2)
It is made of titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102885.1U CN207712300U (en) | 2017-08-31 | 2017-08-31 | A kind of anti-deicing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102885.1U CN207712300U (en) | 2017-08-31 | 2017-08-31 | A kind of anti-deicing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207712300U true CN207712300U (en) | 2018-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721102885.1U Active CN207712300U (en) | 2017-08-31 | 2017-08-31 | A kind of anti-deicing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876638A (en) * | 2022-05-16 | 2022-08-09 | 南京航空航天大学 | Hot gas anti-icing structure of aeroengine rectification extension board |
-
2017
- 2017-08-31 CN CN201721102885.1U patent/CN207712300U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876638A (en) * | 2022-05-16 | 2022-08-09 | 南京航空航天大学 | Hot gas anti-icing structure of aeroengine rectification extension board |
| CN114876638B (en) * | 2022-05-16 | 2023-05-09 | 南京航空航天大学 | Hot gas anti-icing structure of aeroengine rectification support plate |
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