CN106005431B - A kind of injecting type lifting airscrew prevents/deicer - Google Patents
A kind of injecting type lifting airscrew prevents/deicer Download PDFInfo
- Publication number
- CN106005431B CN106005431B CN201610467368.8A CN201610467368A CN106005431B CN 106005431 B CN106005431 B CN 106005431B CN 201610467368 A CN201610467368 A CN 201610467368A CN 106005431 B CN106005431 B CN 106005431B
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- CN
- China
- Prior art keywords
- deicing
- liquid
- nozzle
- carbon dust
- gas
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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
-
- 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
-
- 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
- B64D15/02—De-icing or preventing icing on exterior surfaces of aircraft by ducted hot gas or liquid
- B64D15/06—Liquid application
- B64D15/10—Liquid application sprayed over surface
Abstract
The present invention relates to a kind of injecting type lifting airscrew to prevent/deicer, which is installed on inside lifting airscrew ice field, and critical piece includes：Iron clad, anti-/ deicing nozzle, deicing liquid and carbon dust injection gas-liquid control system and the hard substrate for fixed installation；Deicing liquid and carbon dust injection gas-liquid control system including deicing liquid source, check-valves, cartridge, air compressor, hydraulic pump, for engine exhaust heat heat the heat exchanger of deicing liquid, the two-way connector for connecting gas-liquid circuit, hot gas and deicing liquid conveyance conduit and pressure gauge for measuring gas-liquid circuit；The present invention makes super-cooling waterdrop freeze in advance using injection carbon dust as the icing nuclei of condensation, and spray the mode of heating deicing liquid, lifting airscrew can be prevented, de-icing work, it is short with the time, consume energy the features such as low, deicing is thorough, disclosure satisfy that anti-, the deicing requirement under a variety of different terrible weather environment and under different icing conditions.
Description
Technical field
The present invention relates to a kind of injecting type lifting airscrew to prevent/deicer, belongs to that rotor is anti-icing and clearing ice technology field.
Background technology
Lifting airscrew when cloud layer containing super-cooling waterdrop is met in high-altitude can in rotor, there is icing phenomenon in surface windward, knot
Helicopter is resulted even in when ice is serious aircraft accident occurs.Existing lifting airscrew mainly by electric heating, hot gas mode into
Row prevents/de-icing work, and more mature anti-/ clearing ice technology is less.Therefore, new fast and efficiently lifting airscrew is studied to prevent
Ice and clearing ice technology are of great significance.
Super-cooling waterdrop refers to temperature less than zero degree but still in the water droplet of liquid condition, and research finds that super-cooling waterdrop does not freeze
The reason for be primarily due to lack the nuclei of condensation, as long as there are the nuclei of condensation in subcooled water just can induce crystallization, and make super-cooling waterdrop
Temperature recovery to solidification point, and the particulate such as dust in the carbon dust, air in nature can be induced as the nuclei of condensation
Cold water drop freezes.Therefore, new lifting airscrew can be designed according to super-cooling waterdrop icing principle and prevents/deicer.
The content of the invention
Patent of the present invention mainly utilizes super-cooling waterdrop icing principle, using new anti-/ deicing nozzle of design, sprays carbon dust
As the nuclei of condensation of super-cooling waterdrop, and the deicing liquid of heating is sprayed, propose that a kind of injecting type lifting airscrew prevents/deicer.
Patent of the present invention can prevent lifting airscrew, de-icing work, have the features such as time is short, and energy consumption is low, deicing is thorough, energy
Enough anti-, deicing requirements met under a variety of different terrible weather environment and under different icing conditions.
The technical solution adopted by the present invention is：A kind of injecting type lifting airscrew is provided and prevents/deicer, including iron clad,
Anti-/deicing nozzle, deicing liquid and carbon dust injection gas-liquid control system and the hard substrate for fixed installation；Wherein：Described
Deicing liquid and carbon dust injection gas-liquid control system include deicing liquid source, check-valves, for providing carbon dust as the icing nuclei of condensation
Cartridge, for engine exhaust heat come heat the heat exchanger of deicing liquid, the air compressor for pressurized engine exhaust gas,
Hydraulic pump for pressurized jet deicing liquid, the two-way connector for connecting solution-air circuit, hot gas and deicing liquid conveyance conduit
And for measuring the pressure gauge in solution-air circuit；Cartridge connection check-valves and two-way connector entrance in carbon dust spray circuits；Remove
Heat exchanger connection check-valves and two-way connector entrance in ice liquid spray circuits；In two circuits by be arranged on two-way connector and
Pressure gauge difference control pressure and hydraulic circuit pressure between anti-/ deicing nozzle.
Anti-/deicing the nozzle structure is solution-air two-way nozzle, and nozzle top is semiglobe, and lower part is casing knot
Structure；Semiglobe can spray the high-pressure engine exhaust gas for being mingled with carbon dust, and sleeve structure opens up nozzle, can be given up with jet engine
Deicing liquid after gas heating.
Inner tube, outer tube open up the external screw thread for connecting line in the anti-/ deicing nozzle sleeve structure；Half chou
Structure internal gas passageways sectional dimension is gradually reduced by interior.
Anti-/deicing the nozzle is installed on hard substrate, and hard substrate is mutually be bonded with covering, chordwise location：In the past
To 10% chord length of upper surface, 14% chord length of lower surface, is opened up to position edge：25% chord length section is arised from, terminates in 95% chord length section.
Anti-/deicing the nozzle is distributed in hard substrate installation region, is uniformly arranged along blade length direction；It is described
Anti-/deicing nozzle stretch out rotor surface total height and be not more than 25mm.
The beneficial effects of the invention are as follows：
1. the present invention uses for reference the icing principle of super-cooling waterdrop, super-cooling waterdrop is set to freeze in advance as the nuclei of condensation using carbon dust,
And the energy of helicopter engine high temperature and pressure exhaust gas is quoted, heat deicing liquid and being ejected into rotor surface melts micro accumulated ice
Change, effectively prevent and eliminate lifting airscrew accumulated ice；
2. the present invention carries out injection carbon dust by drawing engine exhaust, and utilizes the impurity and carbon dust in engine exhaust
Together super-cooling waterdrop is set to freeze before rotor surface is hit as the nuclei of condensation, the pollution of less motor exhaust, improves exhaust gas
Utilization rate；
3. the present invention uses heat source of the high temperature as heating deicing liquid in engine exhaust, deicing is heated by heat exchanger
Liquid, improves the deicing efficiency of deicing liquid and reduces energy consumption；
4. the present invention is used for anti-/ deicing of lifting airscrew, simple and compact for structure, easily operated, light-weight, will not increase
The excessive weight of helicopter.
Brief description of the drawings
Fig. 1 is the structure diagram of anti-/ deicing injector head.
Fig. 2 is anti-/ deicing injector head schematic view of the mounting position.
Fig. 3 is anti-/ deicing injector head assembling schematic diagram.
Fig. 4 is deicing liquid and carbon dust injection gas-liquid control loop schematic diagram.
Fig. 5 is deicing liquid and carbon dust injection gas-liquid control loop position schematic diagram.
In figure：
1. blade；2. anti-/ deicing nozzle；3. iron clad；4. hard substrate；5. covering；6. deicing liquid source；7. hydraulic pump；8.
Check-valves；9. heat exchanger；10. pressure gauge；11. engine exhaust source；12. air compressor；13. cartridge；14. heating pipe
Road；15. deicing liquid pipeline；16. two-way connector.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, anti-/ deicing nozzle structure is solution-air two-way nozzle, nozzle top is semiglobe, and lower part is set
Pipe structure；Semiglobe can spray the high-pressure engine exhaust gas for being mingled with carbon dust, and sleeve structure opens up nozzle, can spray and start
Deicing liquid after the heating of machine exhaust gas, to ensure spray regime, semiglobe internal gas passageways sectional dimension is designed by inside
It is gradually reduced to outside, and then increases the speed of hemisphere surface nozzle, increases spray regime；Anti-/deicing nozzle sleeve structure
Middle inner tube, outer tube open up the external screw thread for connecting line, easy to connect carbon dust exhaust gas gas circuit and deicing liquid circuit.
As shown in Figures 2 and 3, anti-/ deicing nozzle is installed on hard substrate, and is uniformly arranged along blade length direction,
Hard substrate is mutually be bonded with covering, chordwise location：From supreme 10% chord length of surface of leading edge, 14% chord length of lower surface, is opened up to position：
25% chord length section is arised from, terminates in 95% chord length section；Anti-/deicing nozzle is connected by the threaded hole being pre-machined on iron clad
On hard substrate, exterior iron clad is used to protect rotor, prevents impact damage rotor after super-cooling waterdrop icing.
As shown in Figure 4 and Figure 5, deicing liquid and carbon dust injection gas-liquid control system are installed on above helicopter engine,
Easy to carry out bleed to motor exhaust.Cartridge connection check-valves and two-way connector entrance, start in carbon dust spray circuits
Machine exhaust gas enters exhaust pipe by air pressure pump, leads to heat exchanger and by the heat transfer of exhaust gas to deicing liquid, passes through two
The mode of secondary pressurization leads to cartridge, exhaust gas is mixed with carbon dust, and after being integrated by two-way connector, is sprayed via anti-/ deicing
Head is ejected into outside rotor；Deicing liquid enters deicing liquid pipeline through hydraulic pump in deicing liquid spray circuits, is heated by heat exchanger
Anti-/deicing nozzle is transferred to by by two-way connector, and is ejected into rotor surface and carries out deicing；By being arranged in two circuits
Pressure gauge difference control pressure and hydraulic circuit pressure between two-way connector and anti-/ deicing nozzle, to ensure whole system
Normal work operating.
Claims (5)
1. a kind of injecting type lifting airscrew prevents/deicer, it is characterised in that including：Iron clad, anti-/ deicing nozzle, deicing liquid
And carbon dust injection gas-liquid control system and the hard substrate for fixed installation；Wherein：The iron clad is used to protect rotor, prevents
Impact damage rotor after only super-cooling waterdrop freezes；The deicing liquid and carbon dust injection gas-liquid control system include deicing liquid source,
Check-valves, for providing carbon dust heat changing for deicing liquid as the cartridge of the icing nuclei of condensation, for engine exhaust heat
Hot device, the air compressor for pressurized engine exhaust gas, the hydraulic pump for pressurized jet deicing liquid, for connecting solution-air
Two-way connector, hot gas and the deicing liquid conveyance conduit in circuit and the pressure gauge for measuring solution-air circuit；Carbon dust spray circuits
Middle cartridge connection check-valves and two-way connector entrance；Heat exchanger connection check-valves is connected with two-way in deicing liquid spray circuits
Device entrance；Control pressure and liquid are distinguished by the pressure gauge being arranged between two-way connector and anti-/ deicing nozzle in two circuits
Press circuit pressures；
Engine exhaust enters exhaust pipe by air compressor, leads to heat exchanger and by the heat transfer of exhaust gas to deicing
Liquid, leads to cartridge by way of secondary pressurized, exhaust gas is mixed with carbon dust, and after being integrated by two-way connector, via
Anti-/deicing nozzle is ejected into outside rotor, and anti-freeze fluid is introduced by deicing liquid pipeline under the action of hydraulic pump via check-valves
Heat exchanger heats, the anti-freeze fluid of heating and the engine exhaust containing carbon dust by two-way connector via pressure gauge introduce it is anti-/
Deicing nozzle is simultaneously sprayed.
2. a kind of injecting type lifting airscrew prevents/deicer according to claim 1, it is characterised in that：Described prevent/removes
Ice nozzle structure is solution-air two-way nozzle, and nozzle top is semiglobe, and lower part is sleeve structure；Semiglobe can spray
It is mingled with the high-pressure engine exhaust gas of carbon dust, sleeve structure opens up nozzle, the deicing liquid after being heated with jet engine exhaust gas.
3. a kind of injecting type lifting airscrew prevents/deicer according to claim 2, it is characterised in that：Described prevent/removes
Inner tube, outer tube open up the external screw thread for connecting line in ice nozzle sleeve structure；Semiglobe internal gas passageways section
Size is gradually reduced by interior.
4. a kind of injecting type lifting airscrew prevents/deicer according to claim 1, it is characterised in that：Described prevent/removes
Ice nozzle is installed on hard substrate, and hard substrate is mutually be bonded with covering, chordwise location：From supreme 10% chord length of surface of leading edge,
14% chord length of lower surface, is opened up to position：25% chord length section is arised from, terminates in 95% chord length section.
5. a kind of injecting type lifting airscrew prevents/deicer according to claim 1, it is characterised in that：Described prevent/removes
Ice nozzle is distributed in hard substrate installation region, is uniformly arranged along blade length direction；Anti-/deicing the nozzle stretches out rotation
Wing surface total height is not more than 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467368.8A CN106005431B (en) | 2016-06-24 | 2016-06-24 | A kind of injecting type lifting airscrew prevents/deicer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467368.8A CN106005431B (en) | 2016-06-24 | 2016-06-24 | A kind of injecting type lifting airscrew prevents/deicer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106005431A CN106005431A (en) | 2016-10-12 |
| CN106005431B true CN106005431B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610467368.8A Active CN106005431B (en) | 2016-06-24 | 2016-06-24 | A kind of injecting type lifting airscrew prevents/deicer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108058832B (en) * | 2017-11-03 | 2022-06-28 | 中航通飞研究院有限公司 | Combined type anti-icing liquid-air bag anti-icing and deicing system |
| CN109878740B (en) * | 2019-03-25 | 2024-02-27 | 上海工程技术大学 | Anti-icing and deicing device and method for wings and tail wings of turboprop aircraft |
| CN110525663B (en) * | 2019-08-19 | 2021-04-09 | 山东大学 | Water film cavitation and deicing liquid combined deicing fairing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176383A (en) * | 2005-05-16 | 2008-05-07 | 贝尔直升机泰克斯特龙公司 | Ice processing system for inclined rotary-wing aircraft |
| CN102730194A (en) * | 2011-04-08 | 2012-10-17 | 贝尔直升机泰克斯特龙公司 | Rotor blade de-icing system |
| CN104648676A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Novel icing signal sensor |
| CN104890880A (en) * | 2014-03-07 | 2015-09-09 | 波音公司 | Systems and methods for passive deicing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2850000A4 (en) * | 2012-05-16 | 2015-12-23 | Jka Kemi Ab | Deicing of a surface of structures in general such as wind turbine blades, aircraft wings using induction or radiation |
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2016
- 2016-06-24 CN CN201610467368.8A patent/CN106005431B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176383A (en) * | 2005-05-16 | 2008-05-07 | 贝尔直升机泰克斯特龙公司 | Ice processing system for inclined rotary-wing aircraft |
| CN102730194A (en) * | 2011-04-08 | 2012-10-17 | 贝尔直升机泰克斯特龙公司 | Rotor blade de-icing system |
| CN104648676A (en) * | 2013-11-22 | 2015-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Novel icing signal sensor |
| CN104890880A (en) * | 2014-03-07 | 2015-09-09 | 波音公司 | Systems and methods for passive deicing |
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| CN106005431A (en) | 2016-10-12 |
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