CN112591105A - Electric heating and self-lubricating composite anti-icing and deicing functional structure - Google Patents
Electric heating and self-lubricating composite anti-icing and deicing functional structure Download PDFInfo
- Publication number
- CN112591105A CN112591105A CN202011555630.7A CN202011555630A CN112591105A CN 112591105 A CN112591105 A CN 112591105A CN 202011555630 A CN202011555630 A CN 202011555630A CN 112591105 A CN112591105 A CN 112591105A
- Authority
- CN
- China
- Prior art keywords
- self
- icing
- electric heating
- heating
- lubricating
- 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.)
- Pending
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 239000010410 layer Substances 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000011241 protective layer Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000004088 simulation Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract description 10
- 230000003075 superhydrophobic effect Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000001050 lubricating effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/12—De-icing or preventing icing on exterior surfaces of aircraft by electric heating
- B64D15/14—De-icing or preventing icing on exterior surfaces of aircraft by electric heating controlled cyclically along length of surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
Abstract
The invention belongs to the design of airplane anti-icing and deicing, and particularly relates to an electric heating and self-lubricating composite anti-icing and deicing functional structure; the structure form of the electric heating wire comprises a self-lubricating coating, a protective layer and an electric heating layer from outside to inside; the protective layer, the electric heating layer and the body structure are solidified and formed together, and the self-lubricating coating is sprayed on the surface of the protective layer. The structure provided by the invention can be used for intermittently electrifying and heating a large-area anti-icing design area in a working mode, allowing a single area to be iced to a certain degree in a cooling period, and electrifying and heating an ice layer area after entering a heating period, thereby further reducing the energy consumption. Compared with a simple electric heating ice prevention and removal method and an electric heating and super-hydrophobic coating composite ice prevention and removal method, the energy consumption is greatly reduced, and the ice prevention requirement of a large-area can be met.
Description
Technical Field
The invention belongs to airplane anti-icing and deicing designs, and particularly relates to an electric heating and self-lubricating composite anti-icing and deicing functional structure.
Background
Icing on the leading edge of an aircraft poses a great threat to flight safety, and therefore, icing phenomena in flight and methods for deicing the leading edge structure of the aircraft are issues which must be seriously considered in the design process.
At present, the electric heating method is mainly applied to the design of preventing and removing ice of an airplane, a layer of electric heating film is adhered to an area needing the design of preventing and removing ice, and heating is realized by consuming electric energy, so that the aim of preventing and removing ice of a key part is fulfilled.
At present, the surface coating which is commonly used for the aircraft anti-icing and deicing design is mainly a super-hydrophobic coating, but the surface coating only can delay the icing phenomenon and has very limited effect; the super-hydrophobic coating and electric heating composite anti-icing design structure is suitable for an anti-icing working mode, does not allow surface icing, and needs long-term power-on heating, which inevitably brings more energy consumption.
The self-lubricating coating is opposite to the principle of the super-hydrophobic coating, has hydrophilic property, but can form a water lubricating layer after the surface is frozen, has small binding force with an ice layer, and can remove the ice layer on the surface by only less heat under the action of air flow; the method is particularly suitable for the working mode of deicing.
Compared with a simple electric heating deicing method and an electric heating and super-hydrophobic coating composite deicing method, the electric heating and self-lubricating composite deicing functional structure provided by the invention has the advantages that the energy consumption is greatly reduced, and the deicing requirement of a large-area can be met.
Disclosure of Invention
The purpose of the invention is as follows:
the invention aims to provide an electric heating and self-lubricating composite anti-icing functional structure which has low energy consumption, can be applied to anti-icing requirements of a large-area region of a leading edge region on an airplane and has good feasibility and manufacturability.
The technical scheme of the invention is as follows:
the invention relates to an electric heating and self-lubricating composite anti-icing functional structure, which can realize the anti-icing design of an airplane leading edge structure with lower energy consumption, and comprises a self-lubricating coating, a protective layer and an electric heating layer from outside to inside; the protective layer, the electric heating layer and the body structure are solidified and formed together, and the self-lubricating coating is sprayed on the surface of the protective layer.
The self-lubricating coating has a hydrophilic characteristic, a water lubricating layer can be formed after the surface of the self-lubricating coating is contacted and frozen with water, and the binding force with the ice layer is low.
Preferably, the protective layer has high electrical insulation properties and thermal conductivity properties.
Preferably, the electrothermal layer can be heated by electrifying and has high electric-thermal conversion efficiency.
Preferably, the body structure is a leading edge structure which needs to be designed for ice prevention and removal, and is solidified and formed together with the electrothermal layer and the protective layer.
In the working mode, the self-lubricating coating and electric heating composite ice prevention and removal structure is adopted, the large-area ice prevention and removal design area can be subjected to partitioned intermittent electric heating, a single area is allowed to be provided with ice to a certain degree in a cooling period, and after the single area enters a heating period, the ice layer area is subjected to electric heating, so that the energy consumption is further reduced. The zone heating is performed by program control.
The positive effects are as follows:
according to the electric heating and self-lubricating composite anti-icing functional structure, the self-lubricating coating is positioned on the outer surface, a water lubricating layer is formed after the self-lubricating coating is impacted by water drops, the binding force of the ice layer condensed on the surface of the water lubricating layer is low, and the ice layer on the surface can be removed under the scouring of air flow only by using less heat after the electric heating layer is electrified and heated, so that the energy consumption is greatly reduced, and test data shows that compared with a simple electric heating anti-icing method, the electric heating and self-lubricating composite anti-icing functional structure disclosed by the invention has the advantages that the energy consumption is reduced by more than 75%, and the anti-icing requirements of a large-area can be met.
Drawings
FIG. 1 is a schematic diagram of an application structure form of an electric heating and self-lubricating composite anti-icing functional structure,
FIG. 2 is a schematic view of the working mode of zone intermittent heating of an electric heating and self-lubricating composite anti-icing functional structure,
wherein, 1-self-lubricating layer, 2-protective layer, 3-electrothermal layer, 4-organism structure.
Detailed Description
Aiming at the anti-icing design problem of the leading edge structure of the airplane, in order to effectively reduce the energy consumption of an anti-icing system and realize the anti-icing design of the leading edge structure with large area, the anti-icing functional structure is compounded by electric heating and self-lubricating. The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1, it is an application structure form of an electric heating and self-lubricating composite anti-icing functional structure of the invention, comprising a self-lubricating coating 1, a protective layer 2, an electric heating layer 3, and a body structure 4. The self-lubricating coating 1 is arranged on the outer surface, so that the binding force of an ice layer is effectively reduced, electric heating is assisted, and the ice prevention and removal design of the front edge structure of the airplane can be realized with lower energy consumption. The body structure 4 is mainly a leading edge type structure that needs to be designed for ice control.
Wherein, self-lubricating coating 1 adopts the polyurethane material, possesses hydrophilic characteristic, can form one deck water lubricating layer on the surface, and the cohesion on effectual reduction ice sheet can be very easy to be blown away by the air current under certain heat.
On the basis of the design structure, the adopted protective layer 2 is made of glass cloth, has higher electrical insulation property and heat conduction property, is mainly used for protecting and isolating the electric heating layer 3 and the anti-icing coating 1, and reduces the heat loss of the heat generated by the electric heating layer 3 and transferred to the outer surface.
It should be further explained that the electric heating layer 3 can be electrified for heating, and the material thereof can be a polymer electric heating film material or a carbon nano paper/powder heating film and other various forms, and has higher electric-thermal conversion efficiency and longer service life, and can meet the long-life service requirement of the airplane.
When the electric heating and self-lubricating composite anti-icing functional structure is assembled, an electric heating layer 3 and a protective layer 2 are sequentially laid on a machine body structure 4, the 3 layers of structures are glued and co-cured in a hot pressing tank or an oven mode for forming, and then a self-lubricating coating 1 is coated and formed on the surface of the self-lubricating coating.
When the electric heating and self-lubricating composite anti-icing functional structure works, a working mode of zone intermittent heating is adopted, the specific zone size is determined according to the structural characteristics of a front edge, and the electric heating and cooling cycle design is determined according to icing simulation analysis and typical structural member icing wind tunnel tests.
Fig. 2 shows an example of application of partitioned intermittent heating in an ice control design of a typical airplane, wherein wings of the airplane are divided into 4 zones, the zones are bilaterally symmetrical (symmetrical parts are in the same heating period), when the airplane works, the 4 zones are electrified and heated in turn, each zone is heated for 30 seconds, and cooled for 90 seconds, and the airplane can be controlled by a program. Compared with a simple electric heating ice prevention and removal method and an electric heating and super-hydrophobic coating composite ice prevention and removal method, the energy consumption is greatly reduced, and the ice prevention requirement of a large-area can be met.
Claims (8)
1. An electric heating and self-lubricating composite anti-icing functional structure is characterized in that the structural arrangement form comprises a self-lubricating coating, a protective layer and an electric heating layer from outside to inside; the protective layer, the electric heating layer and the internal body structure are solidified and formed together, and the self-lubricating coating is sprayed on the surface of the protective layer.
2. The structure of claim 1, wherein the self-lubricating coating is made of polyurethane and has hydrophilic properties, and a water-lubricating layer is formed on the surface of the self-lubricating coating when ice is frozen.
3. The electrically heated and self-lubricating composite functional anti-icing structure of claim 1, wherein the body structure is adhered to the electrically heated layer and the protective layer, co-cured and formed, and then coated with the self-lubricating coating on the outer surface.
4. The electrically heated and self-lubricating composite functional anti-icing structure of claim 1, wherein the electrically heated layer is operated by zone intermittent heating.
5. The electrically heated and self-lubricating composite functional anti-icing structure of claim 4, wherein during intermittent heating, the size of each partition is determined according to the structural characteristics of the leading edge, and the design of the electrical heating and cooling cycles is determined according to icing simulation analysis and typical structural member icing wind tunnel tests.
6. The electric heating and self-lubricating composite anti-icing functional structure as claimed in claim 4, wherein the wing is divided into 4 regions which are symmetrical left and right, and symmetrical parts have the same heating period.
7. The structure of claim 6, wherein the heating of the sub-areas is performed by alternately heating 4 sub-areas by applying electricity, each sub-area is heated for 30 seconds and cooled for 90 seconds.
8. The electrically heated and self-lubricating composite anti-icing functional structure according to claim 4 or 7, wherein the zone heating is performed by program control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011555630.7A CN112591105A (en) | 2020-12-24 | 2020-12-24 | Electric heating and self-lubricating composite anti-icing and deicing functional structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011555630.7A CN112591105A (en) | 2020-12-24 | 2020-12-24 | Electric heating and self-lubricating composite anti-icing and deicing functional structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112591105A true CN112591105A (en) | 2021-04-02 |
Family
ID=75202126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011555630.7A Pending CN112591105A (en) | 2020-12-24 | 2020-12-24 | Electric heating and self-lubricating composite anti-icing and deicing functional structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112591105A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236512A (en) * | 2021-07-09 | 2021-08-10 | 中国空气动力研究与发展中心低速空气动力研究所 | Optimized deicing method for wind turbine blade |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256395A (en) * | 1968-05-11 | 1971-12-08 | Kurt Gaiser | Electrical surface heating |
| CN1113475A (en) * | 1993-10-01 | 1995-12-20 | B·F·谷德里奇公司 | Polyurethane deicer |
| US20080175987A1 (en) * | 2007-01-23 | 2008-07-24 | James Thomas Carter | Active ice-phobic freeze-point reducing anti-ice coating and method for providing anti-ice protection to surfaces |
| CN103483890A (en) * | 2013-09-12 | 2014-01-01 | 西安交通大学 | Polymer ice-coating-preventing coating containing modified nano particles and preparing method thereof |
| CN105032731A (en) * | 2015-08-05 | 2015-11-11 | 北京航空航天大学 | Preparation method for energy-saving anti-icing/deicing coating combining super-hydrophobic coating and heating coating |
| US20160221680A1 (en) * | 2015-01-06 | 2016-08-04 | Battelle Memorial Institute | Uniform Heat Distribution in Resistive Heaters For Anti-Icing and De-Icing |
| US20190144122A1 (en) * | 2016-05-09 | 2019-05-16 | Eric Loth | Methods and systems for self-lubricating icephobic elastomer coatings |
| US20200163160A1 (en) * | 2018-11-21 | 2020-05-21 | Goodrich Corporation | Passive anti-icing and/or deicing systems |
| CN111645865A (en) * | 2020-07-07 | 2020-09-11 | 江西克莱威纳米碳材料有限公司 | Deicing device for wing skin |
| CN112009694A (en) * | 2020-09-03 | 2020-12-01 | 北京航空航天大学 | Preparation method of electric heating anti-icing coating for three-dimensional complex curved surface |
-
2020
- 2020-12-24 CN CN202011555630.7A patent/CN112591105A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256395A (en) * | 1968-05-11 | 1971-12-08 | Kurt Gaiser | Electrical surface heating |
| CN1113475A (en) * | 1993-10-01 | 1995-12-20 | B·F·谷德里奇公司 | Polyurethane deicer |
| US20080175987A1 (en) * | 2007-01-23 | 2008-07-24 | James Thomas Carter | Active ice-phobic freeze-point reducing anti-ice coating and method for providing anti-ice protection to surfaces |
| CN103483890A (en) * | 2013-09-12 | 2014-01-01 | 西安交通大学 | Polymer ice-coating-preventing coating containing modified nano particles and preparing method thereof |
| US20160221680A1 (en) * | 2015-01-06 | 2016-08-04 | Battelle Memorial Institute | Uniform Heat Distribution in Resistive Heaters For Anti-Icing and De-Icing |
| CN105032731A (en) * | 2015-08-05 | 2015-11-11 | 北京航空航天大学 | Preparation method for energy-saving anti-icing/deicing coating combining super-hydrophobic coating and heating coating |
| US20190144122A1 (en) * | 2016-05-09 | 2019-05-16 | Eric Loth | Methods and systems for self-lubricating icephobic elastomer coatings |
| US20200163160A1 (en) * | 2018-11-21 | 2020-05-21 | Goodrich Corporation | Passive anti-icing and/or deicing systems |
| CN111645865A (en) * | 2020-07-07 | 2020-09-11 | 江西克莱威纳米碳材料有限公司 | Deicing device for wing skin |
| CN112009694A (en) * | 2020-09-03 | 2020-12-01 | 北京航空航天大学 | Preparation method of electric heating anti-icing coating for three-dimensional complex curved surface |
Non-Patent Citations (2)
| Title |
|---|
| 杜雁霞等: "飞机结冰热力学行为研究综述", 《航空学报》 * |
| 邹小玲: "直升机旋翼防除冰设计与分析", 《直升机技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236512A (en) * | 2021-07-09 | 2021-08-10 | 中国空气动力研究与发展中心低速空气动力研究所 | Optimized deicing method for wind turbine blade |
| CN113236512B (en) * | 2021-07-09 | 2021-09-10 | 中国空气动力研究与发展中心低速空气动力研究所 | Optimized deicing method for wind turbine blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Falzon et al. | Development and evaluation of a novel integrated anti-icing/de-icing technology for carbon fibre composite aerostructures using an electro-conductive textile | |
| US10457404B2 (en) | Carbon nanotube anti-icing and de-icing means for aircraft | |
| US7124983B2 (en) | Hybrid electrical ice protection system and method including an energy saving mode | |
| CN107084100B (en) | Wind power blade heating and ice melting system based on graphene heating film and manufacturing method of blade | |
| CN110510102B (en) | Attachable self-resistance heating/super-hydrophobic integrated gradient film material | |
| US20170129616A1 (en) | Method for installing a de-icing system on an aircraft, involving the application of layers of material in the solid and/or fluid state | |
| CN205265933U (en) | Multilayer structure's anti -icing component of electrical heating | |
| US20140131520A1 (en) | Thermal Insulation Barrier For An Aircraft De-Icing Heater | |
| CN112757717A (en) | Directional heat conduction electric heating device and preparation method | |
| CN108454816A (en) | A kind of anti-deicing covering of novel micro nanometer body structure surface | |
| CN112591105A (en) | Electric heating and self-lubricating composite anti-icing and deicing functional structure | |
| CN106321372A (en) | Composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting | |
| EP3774543A1 (en) | Ice removal system | |
| CN107061193B (en) | Multi-layer structure composite anti-icing and deicing system and assembly method thereof | |
| CN113148183A (en) | Plasma hot knife and hydrophobic material combined type deicing device and application | |
| CN107117318B (en) | A kind of preparation method of anti-/ deicing composite material functional unit | |
| EP1873060B1 (en) | Hybrid electrical ice protection system and method including an energy saving mode | |
| US20200023975A1 (en) | De-icing apparatus | |
| CN102843790A (en) | Electrical heater and fabricating method thereof, and vehicle | |
| CN211001790U (en) | Heat and sound insulation blanket for aircraft | |
| CN106005430A (en) | Wing anti-freezing structure and aircraft adopting same | |
| EP3597541B1 (en) | Aircraft ice protection systems | |
| CN214821500U (en) | Directional electric heating heat conduction device | |
| CN111234587A (en) | Anti-icing coating for vehicle-mounted bogie of motor train unit | |
| CN106240828A (en) | A kind of lifting airscrew magnetizing super-cooling waterdrop prevents/deicer |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |