CN207660707U - The multipart anti-icing system of aero-engine - Google Patents
The multipart anti-icing system of aero-engine Download PDFInfo
- Publication number
- CN207660707U CN207660707U CN201721409333.5U CN201721409333U CN207660707U CN 207660707 U CN207660707 U CN 207660707U CN 201721409333 U CN201721409333 U CN 201721409333U CN 207660707 U CN207660707 U CN 207660707U
- Authority
- CN
- China
- Prior art keywords
- ice components
- icing
- temperature
- flow
- ice
- 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
Links
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model provides a kind of multipart anti-icing system of aero-engine, for in aero-engine multiple anti-ice components it is anti-icing, the anti-icing system includes multiple blending elements, each blending element includes two input terminals to receive high temperature gas flow and low-temperature airflow respectively, and at least one output end is to export at least mixed airflow all the way, the air inlet of each anti-ice components is coupled to the output end of the corresponding blending element of the anti-ice components by air inlet pipeline to receive the mixed airflow that the correspondence blends element output, wherein, the input terminal of the corresponding blending element of other anti-ice components is coupled to by gas exhaust piping for the exhaust outlet of at least one anti-ice components so that the corresponding blending element that low-temperature airflow is input to other anti-ice components is used as in the anti-icing bleed being discharged from least one anti-ice components.
Description
Technical field
The utility model is related to aero-engine hot air anti-icing technical fields, more particularly to one kind is in aero-engine
The anti-icing system of multiple anti-ice components.
Background technology
When aircraft is in the ground handling for having ice-formation condition or the cloud layer for passing through the drop containing supercooling, engine intake,
The positions such as calotte, support plate, flow splitter (these need anti-icing position hereinafter referred to as anti-ice components) can all have the wind to freeze
Danger.If clearing up these accumulated ice not in time, the runner at icing position can be changed, and then lead to engine performance deterioration；What is more
Accumulated ice, which falls off, is inhaled into engine, damages parts, can cause engine control flame-out under serious conditions, be caused to flight safety
Major hidden danger..
Currently, hot air anti-icing in aircraft anti-icing using relatively broad.But hot air anti-icing is in office, and there are the following problems：
1. current anti-icing system design face discrete component is carried out, anti-icing bleed is directly arranged after an element flows through
Enter in mainstream gas, and anti-icing bleed temperature at this time times is so higher, directly drains the waste for causing anti-icing bleed.
2. hot air anti-icing mainly heats anti-ice components in the form of impingement heat transfer, but since space is smaller in anti-ice components, arranges
Gas port is small, causes inner chamber pressure bigger than normal, the effects that crossing current after impacting in addition, impingement heat transfer effect can be caused substantially to be deteriorated, into
And anti-icing amount of air entrainment must be increased, finally influence engine performance.
Therefore, it is necessary to a kind of improved anti-icing systems, to improve the utilization rate of anti-icing bleed.
Utility model content
In order to overcome drawbacks described above, the utility model to be intended to provide a kind of multipart anti-icing system of aero-engine.
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
One side according to the present utility model provides a kind of anti-icing system, for multiple anti-icing portions in aero-engine
Part it is anti-icing, which includes：
Multiple blending elements, each element that blends includes two input terminals to receive high temperature gas flow and low-temperature airflow respectively,
And to export, at least mixed airflow, the air inlet of each anti-ice components are coupled at least one output end by air inlet pipeline all the way
Output end to the corresponding blending element of the anti-ice components blends the mixed airflow that element exports to receive the correspondence,
Wherein, the exhaust outlet of at least one anti-ice components is coupled to the corresponding of other anti-ice components by gas exhaust piping and blends
The input terminal of element is so that the anti-icing bleed being discharged from least one anti-ice components is input to other as low-temperature airflow and prevents
The corresponding blending element of ice component.
In one example, multiple blending element is corresponded with multiple anti-ice components, the air inlet of each anti-ice components
Mouth is coupled to the output end of corresponding blending element by air inlet pipeline, wherein connects between each anti-ice components
Mode connects, and two input terminals of the first blending element corresponding with first anti-ice components are respectively coupled to external high temperature gas flow
One input terminal in source and low-temperature airflow source, the corresponding blending element of remaining each anti-ice components is coupled to the first blending element
Output end to receive the mixed airflow of its output, another input terminal is coupled to the row of previous anti-icing element by gas exhaust piping
Gas port is to receive the anti-icing bleed of the previous anti-ice components discharge.
In one example, which includes injector.
In one example, the air-flow of the higher temperature in the two-way air-flow that each injector receives as working air current into
Enter working air current input terminal, the air-flow of lower temperature enters injection air-flow input as injection air-flow.
In one example, further include controller, stream is equipped with before or after two input terminals of each blending element
Control valve, the controller adjust the amount of air entrainment and temperature of each anti-ice components by controlling each flow control valve.
In one example, temperature sensor and pressure sensor are equipped in each anti-ice components, which is based on each anti-
The temperature and pressure feedback of the temperature sensor and pressure sensor of ice component are each to adjust to control corresponding discharge control valve
The amount of air entrainment and temperature of a anti-ice components.
In one example, which executes the control to each flow control valve using pid algorithm.
In one example, multiple anti-ice components include in engine lip, nacelle, calotte, support plate and flow splitter extremely
It is both few.
The utility model simultaneously controls multiple anti-icing elements, and the anti-icing bleed of multi-part part is connected to, is added
The strong exhaust effect of anti-icing component, and then improve internal anti-icing heat transfer effect, and by the waste heat of anti-icing bleed profit
Use another element it is anti-icing in, improve the utilization rate of anti-icing bleed, effectively improve engine efficiency.
Description of the drawings
After reading the detailed description of embodiment of the disclosure in conjunction with the following drawings, it better understood when that this practicality is new
The features described above and advantage of type.In the accompanying drawings, each component is not necessarily drawn to scale, and with similar correlation properties or
The component of feature may have same or similar reference numeral.
Fig. 1 shows the block diagram of the anti-icing system of an embodiment according to the present utility model；And
Fig. 2 shows the engines for the anti-icing system that can dispose the utility model simply to illustrate.
Symbol description
1、2、5、6、7：Flow control valve
3、8：Injector
4：Controller
9、12：Temperature sensor
10、13：Pressure sensor
11：Gas exhaust piping
14、15：Anti-ice components
16：Engine lip
17：Nacelle
18：Calotte
19：Support plate
20：Flow splitter
Specific implementation mode
The utility model is described in detail below in conjunction with the drawings and specific embodiments.Note that below in conjunction with attached drawing and tool
The aspects of body embodiment description is merely exemplary, and is understood not to carry out the scope of protection of the utility model any
Limitation.
Provide a kind of anti-icing system in the present invention, at the same multiple anti-ice components cooperate with it is anti-icing, will be more
The anti-icing bleed of a anti-ice components is connected to, and the exhaust effect of anti-ice components is on the one hand reinforced, and then is improved internal anti-icing
Heat transfer effect；On the other hand by the waste heat that anti-icing bleed is discharged use another element it is anti-icing in, improve anti-
The utilization rate of ice bleed, effectively improves engine efficiency.
One side according to the present utility model, the anti-icing system may include multiple blending elements, and each element that blends includes
Two input terminals export at least gaseous mixture all the way to receive high temperature gas flow and low-temperature airflow and at least one output end respectively
Stream.By the flow control of high temperature gas flow and low-temperature airflow to input terminal, blending element can be by high temperature gas flow and low-temperature airflow
The mixed airflow of suitable temperature is mixed into for use as the anti-icing bleed of anti-ice components.Temperature for anti-icing anti-icing bleed is desirable
Certainly in conditions such as the allowable temperatures of engine operating condition and anti-ice components material.
Each anti-ice components are equipped with corresponding blending element, and the air inlet on anti-ice components is coupled to pair by air inlet pipeline
The output end of element should be blended, the anti-icing bleed of itself is used as with the mixed airflow for receiving correspondence blending element output.
Particularly, the exhaust outlet of at least one anti-ice components is coupled to the correspondences of other anti-ice components by gas exhaust piping and mixed
The input terminal of mixed element is so that the anti-icing bleed being discharged from least one anti-ice components is input to other as low-temperature airflow
The corresponding blending element of anti-ice components.
As previously mentioned, this aspect reinforces the exhaust effect of anti-ice components, internal anti-icing heat transfer effect is improved；Another party
Face by the waste heat that anti-icing bleed is discharged use another element it is anti-icing in, improve the utilization rate of anti-icing bleed,
Effectively improve engine efficiency.
In one embodiment, this multiple blending element is corresponded with this multiple anti-ice components.Each anti-ice components into
Gas port is coupled to the output end of corresponding blending element by air inlet pipeline.Wherein, it is gone here and there between each anti-ice components
Connection mode connects, and two input terminals of the first blending element corresponding with the first anti-ice components are respectively coupled to external high temperature gas flow
One input terminal in source and low-temperature airflow source, the corresponding blending element of remaining each anti-ice components is coupled to the first blending element
For output end to receive the mixed airflow of its output, another input terminal is coupled to the exhaust of previous anti-icing element by gas exhaust piping
Mouth is to receive the anti-icing bleed of previous anti-ice components discharge.
More preferably, the utility model is used as blending element using injector.Injector is made using the turbulent fluctuation diffusion of jet stream
With making the two fluids of different pressures be mutually mixed, and cause the fluid machinery and mix reaction equipment of energy exchange.
Injector is mainly made of components such as main jet, receiving chamber, mixing chamber and diffuser casings.Into before device, pressure
Higher fluid is called working fluid, it is flowed out with very high speed from nozzle, into receiving chamber, since the turbulent fluctuation of jet stream is spread
Effect, volume inhale the fluid of surrounding and momentum-exchange occur, and the lower fluid of the pressure being sucked away is driving fluid.Working fluid with
Driving fluid mixes in mixing chamber, carries out momentum and mass exchange, gradually balanced in flow process medium velocity, during this usually
With the raising of pressure.Fluid out enters diffuser casing from mixing chamber, and pressure will continue to increase because flowing velocity slows down.Expanding
Room exit is dissipated, the pressure of fluid-mixing is higher than the pressure of driving fluid when entering receiving chamber.
Due to the effect of injector, the exhaust efficiency of the exhaust ports of anti-ice components greatly improves, and effectively reduces anti-icing
The inner chamber pressure of component, and then intracavitary is alleviated due to the effects that flowing over caused by impact, ultimately improve impingement heat transfer effect.
In order to which the temperature to anti-icing bleed accurately controls, anti-icing system can also be designed with controller and in each blending member
Flow control valve is equipped with before or after two input terminals of part, controller is adjusted by controlling each flow control valve
The amount of air entrainment and temperature of each anti-ice components.
Further, temperature sensor and pressure sensor can be equipped in each anti-ice components, controller can be based on each anti-
The temperature and pressure feedback of ice component control corresponding discharge control valve to adjust the amount of air entrainment and temperature of each anti-ice components.
Fig. 1 shows the block diagram of the anti-icing system 100 of an embodiment according to the present utility model.
It is the first anti-ice components 14 and second respectively as shown in Figure 1, showing two anti-ice components in anti-icing system 100
Anti-ice components 15.Respectively the first anti-ice components 14 and the second anti-ice components 15 are provided with the first injector 3 and the second injector
8。
Two input terminals of the first injector 3 are respectively coupled to external high temperature gas flow source and low temperature gas (such as cold air)
Stream source, and corresponding high temperature bleed control valve 1 and low temperature bleed control valve 2 are respectively equipped on extension tube attached road.First injector 3
Output end the air inlets of anti-ice components 14 is on the one hand coupled to via pipeline, and flow control valve 5 is set on pipeline.
On the other hand the output end of first injector 3 is coupled to the input terminal of the second injector 8, specially work via pipeline
Make air-flow input, and is equipped with flow control valve 6 on pipeline.Another input terminal of second injector 8 introduces air-flow input
End is coupled to the exhaust outlet of the first anti-ice components 14 by pipeline 11, and flow control valve 7 is equipped on pipeline.Second injector
8 output end is coupled to the air inlet of the second anti-ice components 15 via pipeline.
When work, the mixed airflow exported from the first injector 3 enters the chamber of the first anti-ice components 14 as anti-icing bleed
It is interior to carry out anti-icing processing.Anti-icing bleed is discharged, and flow to after the first anti-ice components 14 complete anti-icing work by gas exhaust piping 11
It is blended as low-temperature airflow and the anti-icing bleed of high temperature from the first injector 3 in second injector 8, it is anti-icing to be used as second
The anti-icing bleed of component 15.The anti-icing bleed of second anti-ice components 15 complete it is anti-icing after can be from the exhaust outlet of the second anti-ice components 15
It is discharged into mainstream gas.
There are two advantage, first advantage is that the exhaust pressure of the first anti-ice components 14 is reduced by injector for this design
Power reinforces exhaust effect, and then enhances impingement heat transfer effect and heat convection effect in the first anti-ice components 14, and then promotes the
Anti-icing efficiency in one anti-ice components 14.Second advantage is by the anti-icing exhaust of the first anti-ice components 14 and the second anti-ice components
15 anti-icing bleed is blended, and is made full use of the waste heat of 14 anti-icing bleed of the first anti-ice components, is promoted the utilization of anti-icing bleed
Rate, and then promote the efficiency of engine.
In order to execute temperature control, controller 4 can control high temperature bleed control valve 1 and cold air bleed control valve 2, match
It closes the first injector 3 to regulate and control anti-icing total bleed, bleed flow and temperature is made to reach required value.
Controller 4 can regulating flow control valve 5 and flow control valve 6, the first anti-ice components 14 and second of allotment be anti-simultaneously
The amount of air entrainment of ice component 15.Pressure at expulsion and speed of the exhaust gas flow control valve 7 to the first anti-ice components 14 can be used in controller
Regulated and controled, the heat transfer effect in the first anti-ice components 14 is made to be optimal.
For better temperature control effect, can temperature sensor 9 and pressure sensor 10 be set in the first anti-ice components 14,
And setting temperature sensor 12 and pressure sensor 13 in the second anti-ice components 15.
Controller 4 can be by detecting temperature sensor 9, pressure sensor 10, temperature sensor 12 and pressure sensor 13
Anti-icing amount of air entrainment and anti-icing bleed temperature to the first anti-ice components 14 and the second anti-ice components 15 carry out real-time monitoring.
As an example, control of the pid algorithm execution to each flow control valve for example can be used in controller.
Fig. 2 shows the engines for the anti-icing system that can dispose the utility model simply to illustrate.Engine is shown in Fig. 2
Lip 16, nacelle 17, calotte 18, support plate 19 and flow splitter 20.The anti-icing system of above-mentioned the utility model can be used for shown here as
Multiple anti-ice components collaboration it is anti-icing.
The utility model simultaneously controls multiple anti-icing elements, and the anti-icing bleed of multi-part part is connected to, is added
The strong exhaust effect of anti-icing component, and then improve internal anti-icing heat transfer effect, and by the waste heat of anti-icing bleed profit
Use another element it is anti-icing in, improve the utilization rate of anti-icing bleed, effectively improve engine efficiency.
Offer is that can make or use this public affairs to make any person skilled in the art all to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to spirit or scope of other variants without departing from the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (8)
1. a kind of multipart anti-icing system of aero-engine, anti-icing, the spy for multiple anti-ice components in aero-engine
Sign is that the anti-icing system includes：
Multiple blending elements, it is each to blend element including two input terminals to receive high temperature gas flow and low-temperature airflow respectively, and
To export, at least mixed airflow, the air inlet of each anti-ice components are coupled to this at least one output end by air inlet pipeline all the way
The output end of the corresponding blending element of anti-ice components blends the mixed airflow that element exports to receive the correspondence,
Wherein, the exhaust outlet of at least one anti-ice components is coupled to the corresponding blending element of other anti-ice components by gas exhaust piping
Input terminal so that the anti-icing bleed being discharged from least one anti-ice components as low-temperature airflow to be input to other anti-icing
The corresponding blending element of component.
2. anti-icing system as described in claim 1, which is characterized in that the multiple blending element and the multiple anti-ice components
It corresponds, the air inlet of each anti-ice components is coupled to the output of corresponding blending element by air inlet pipeline
End, wherein series system connects between each anti-ice components, and the two of the first blending element corresponding with first anti-ice components
A input terminal is respectively coupled to external high temperature gas flow source and low-temperature airflow source, the corresponding blending element of remaining each anti-ice components
One input terminal is coupled to the output end of the first blending element to receive the mixed airflow of its output, another input terminal is logical
It crosses gas exhaust piping and is coupled to the exhaust outlet of previous anti-icing element to receive the anti-icing bleed of the previous anti-ice components discharge.
3. anti-icing system as claimed in claim 1 or 2, which is characterized in that the blending element includes injector.
4. anti-icing system as claimed in claim 3, which is characterized in that higher in the two-way air-flow that each injector receives
The air-flow of temperature enters working air current input terminal as working air current, and the air-flow of lower temperature enters injection gas as injection air-flow
Flow input terminal.
5. anti-icing system as claimed in claim 1 or 2, which is characterized in that further include controller, the two of each blending element
Flow control valve is equipped with before or after a input terminal, the controller adjusts each by controlling each flow control valve
The amount of air entrainment and temperature of a anti-ice components.
6. anti-icing system as claimed in claim 5, which is characterized in that be equipped with temperature sensor and pressure in each anti-ice components
Sensor, the temperature and pressure feedback of the temperature sensor and pressure sensor of the controller based on each anti-ice components come
Corresponding discharge control valve is controlled to adjust the amount of air entrainment and temperature of each anti-ice components.
7. anti-icing system as claimed in claim 6, which is characterized in that the controller is executed using pid algorithm to each flow
The control of control valve.
8. anti-icing system as described in claim 1, which is characterized in that the multiple anti-ice components include engine lip, short
At least the two in cabin, calotte, support plate and flow splitter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017109100367 | 2017-09-29 | ||
| CN201710910036 | 2017-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207660707U true CN207660707U (en) | 2018-07-27 |
Family
ID=62938514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721409333.5U Active CN207660707U (en) | 2017-09-29 | 2017-10-27 | The multipart anti-icing system of aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207660707U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622986A (en) * | 2020-06-08 | 2020-09-04 | 中国航发湖南动力机械研究所 | Air compressor air-entraining anti-icing device and engine |
| CN111852657A (en) * | 2020-06-15 | 2020-10-30 | 中国航发湖南动力机械研究所 | Double-flow-path air-entraining mixing anti-icing device and method and aircraft engine |
| CN113530888A (en) * | 2021-08-24 | 2021-10-22 | 中国航发湖南动力机械研究所 | Multi-cavity integrated guide vane casing structure with anti-icing function |
| CN114076032A (en) * | 2020-08-20 | 2022-02-22 | 中国航发商用航空发动机有限责任公司 | Anti-icing system, anti-icing nozzle and anti-icing method for aircraft engine |
-
2017
- 2017-10-27 CN CN201721409333.5U patent/CN207660707U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622986A (en) * | 2020-06-08 | 2020-09-04 | 中国航发湖南动力机械研究所 | Air compressor air-entraining anti-icing device and engine |
| CN111852657A (en) * | 2020-06-15 | 2020-10-30 | 中国航发湖南动力机械研究所 | Double-flow-path air-entraining mixing anti-icing device and method and aircraft engine |
| CN114076032A (en) * | 2020-08-20 | 2022-02-22 | 中国航发商用航空发动机有限责任公司 | Anti-icing system, anti-icing nozzle and anti-icing method for aircraft engine |
| CN113530888A (en) * | 2021-08-24 | 2021-10-22 | 中国航发湖南动力机械研究所 | Multi-cavity integrated guide vane casing structure with anti-icing function |
| CN113530888B (en) * | 2021-08-24 | 2022-08-09 | 中国航发湖南动力机械研究所 | Multi-cavity integrated guide vane casing structure with anti-icing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207660707U (en) | The multipart anti-icing system of aero-engine | |
| CN105190005B (en) | Multiinjector current divider for jet engine | |
| US10260371B2 (en) | Method and assembly for providing an anti-icing airflow | |
| US10550768B2 (en) | Intercooled cooled cooling integrated air cycle machine | |
| US8661783B2 (en) | Heat exchanger having swirling means | |
| CN106460677B (en) | Cooled flow is provided from compressor to the method to turbine in combustion gas turbine | |
| US20150107261A1 (en) | Pneumatic system for an aircraft | |
| JP2011137453A (en) | Ejector/mixer nozzle for noise reduction | |
| US10563581B2 (en) | System and method of compressor inlet temperature control with eductor | |
| JP5138894B2 (en) | Gas turbine engine assembly and intercooler system | |
| US11427331B2 (en) | Fresh air and recirculation air mixing optimization | |
| CN106415232B (en) | For the conditioner and correlation technique of engine testing and use | |
| JP6900175B2 (en) | Inlet bleed air heating control system | |
| US20180057171A1 (en) | Advanced method and aircraft for pre-cooling an environmental control system using a three wheel turbo-machine | |
| US10619568B2 (en) | System and method of compressor inlet temperature control with mixing chamber | |
| CN105723072A (en) | Cooling system with compressor bleed and ambient air for gas turbine engine | |
| JP2008038905A (en) | Bypass turbomachine artificially changing throat section | |
| US20170342900A1 (en) | System and method of compressor inlet temperature control with eductor | |
| US20170342902A1 (en) | System and method of compressor inlet temperature control | |
| CN107407618A (en) | Purposes for the device of regulation air, method and described device when testing reciprocating internal combustion engine | |
| CN102493894A (en) | Nozzle exhaust mixing method and device based on pneumatic tab technique | |
| JP2020514615A (en) | An improved method for adjusting the supply circuit | |
| JP2016133122A (en) | Method and system for short length jet pump with improved mixing | |
| CN102444499A (en) | Exhaust mixing method of refiling pneumatic ribbed jet pipe and device thereof | |
| US3049005A (en) | Wind tunnels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |