CN107401486A - A kind of electrical heating deicing device for aero-generator rotor blade - Google Patents
A kind of electrical heating deicing device for aero-generator rotor blade Download PDFInfo
- Publication number
- CN107401486A CN107401486A CN201710818321.6A CN201710818321A CN107401486A CN 107401486 A CN107401486 A CN 107401486A CN 201710818321 A CN201710818321 A CN 201710818321A CN 107401486 A CN107401486 A CN 107401486A
- Authority
- CN
- China
- Prior art keywords
- electrical heating
- protection device
- heater
- aero
- rotor blade
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 85
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000707825 Argyrosomus regius Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of electrical heating deicing device for aero-generator rotor blade, including heater, protection device and output control device；Heater is since blade body leading edge respectively to pressure face and suction surface extension certain distance；Protection device includes insulation protection device and electromagnetic shielding protection device, protection device parcel heater；Output control device is controlling the power density of heater；The electrical heating deicing device, which is provided with, facilitates the hole that wire passes through.This invention ensures that heating material exhibition to continuity；Heater is divided into multiple heating zones in parallel relationship, access circuit can be individually controlled, to control heating region；Power density of each heating zone under fixed voltage is only relevant with its length, facilitates system arrangement design；Electromagnetic shielding protection device can effectively avoid the danger of thunderbolt；Output control device only need control voltage can all heating zones of Synchronization Control input power.
Description
Technical field
The invention belongs to wind-driven generator field, and in particular to a kind of electrical heating for aero-generator rotor blade removes
Ice production apparatus.
Background technology
Wind-driven generator is the energy conversion device being currently in developing rapidly, and it drives generator by catching wind energy
Produce electric energy.And wind-driven generator relies that to catch the part of wind energy be exactly rotor blade, therefore ensure that blades efficient is reliable to transport
It is the important step for improving generating efficiency to turn.
But blade icing has but had a strong impact on the generating efficiency of blade, or even when freezing serious, wind-driven generator is again
It must also be shut down under good wind friction velocity.This strong influence service efficiency of wind energy conversion system, therefore wind-driven generator prevented
Deicing is always study hotspot in the industry.Such as Publication No. CN1705823 hot gas clearing ice technology, Publication No. CN103089550A
Vibration clearing ice technology, Publication No. CN101886617A meagre heating and exciting clearing ice technology etc., Publication No.
CN106837682A electrical heating deicing technology etc.
Wherein electric-heating technology is the anti-clearing ice technology of the blade of wind-driven generator widely studied, but electrical heating unavoidably needs
To increase electrothermal conductor in blade, the risk of thunderbolt will necessarily be increased.The shocking preventing technology that existing patented technology uses, some
It is that extra thunder and lightning conducting shell is added outside zone of heating, and is connected with existing thunder and lightning conducting system；Some refer only to one layer of increase
Wire netting is protected, but zone of heating still can also produce induced-current and destroy.And because zone of heating need to be laid on a large scale, electrode and
Zone of heating design is most important, and existing patent does not also relate to.
The content of the invention
To solve the problems, such as that above blade of wind-driven generator electrical heating deicing technology is present, the invention provides one kind to be used for
The electrical heating deicing device of aero-generator rotor blade, it can effectively avoid the danger of thunderbolt.
Technique according to the invention scheme, the electrical heating deicing device for aero-generator rotor blade, including
Heater, protection device and output control device；The heater since blade body leading edge respectively to pressure face with
Suction surface extends certain distance；The protection device includes insulation protection device and electromagnetic shielding protection device, protection device bag
Wrap up in heater；The output control device is controlling the power density of heater；Set on the electrical heating deicing device
There is the hole for facilitating wire to pass through.
Further, the insulation protection device is the insulation material layer for being wrapped in heating device surface.
Further, the output control device controls the power density of heater by adjusting output voltage control.
Further, the electromagnetic shielding protection device is the wire netting for the closing for being wrapped in insulation protection device surface.
Further, the wire netting grid specification of the electromagnetic shielding protection device is smaller than 1cm*1cm.
Further, the heater is opened up to multiple heating zones are divided into along blade, and each heating zone respectively has two
Electrode.
Further, it is in be connected in parallel between the heating zone.
Further, span-wise length l of power density of the heating zone under fixed voltage only with heating zone has
Close.
Further, the electrical heating deicing device is pasted using hand or vacuum perfusion process is molded, electrical heating deicing device
Smooth and spraying protective layer is polishing to after the completion of shaping.
Further, fill insulant in metapore is completed in the electrical heating deicing device shaping.
Compared with prior art, the advantage of the invention is that：
Heater extends certain distance to pressure face and suction surface respectively since blade inlet edge, due to the curvature of leading edge
Change greatly, such pressure face and suction surface separately advantageously ensure that heating material exhibition to continuity；
Heater is divided into multiple heating zones, and there are the electrode of two extensions, and heating zone in each heating zone respectively
Between be in parallel relationship, access circuit can be individually controlled, to control heating region；
Power density of each heating zone under fixed voltage is only relevant with its length, facilitates system to each sized blades
The arrangement design at each position；
Protection device includes two parts of insulation protection device and electromagnetic shielding protection device, and insulation protection device ensures to add
Thermal and electromagnetic shielding protection device insulation, electromagnetic shielding protection device is to be wrapped in the complete envelope inside and outside insulation protection device
The wire netting closed, and independent grounding, class " faraday cup " structure is formed, electromagnetic shielding protection device is an equipotential system, outside
Heater of the layer current strength again greatly in electromagnetic shielding protection device also will not be impacted, effectively prevents the danger of thunderbolt；
Output control device is to control power density, and because each piecemeal is in parallel, control device only needs control voltage
The input power of all piecemeals of Synchronization Control.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present invention.
Fig. 2 is heating zone schematic diagram of the present invention.
Fig. 3 is complete layout of the present invention in blade body.
Description of reference numerals：1st, heater；2nd, insulation protection device；3rd, it is electromagnetically shielded protection device；4th, protective layer；5、
Wire；6th, blade body；7th, hole；8th, blade body leading edge portion region.
Embodiment
With reference to specific embodiments and the drawings, the invention will be further described.
As shown in Figure 1：Blade body 6 itself carries arrester, and diagrammatic cross-section was actually implemented using square layer as signal
Laid with the shape along blade outer surface in journey.Electrical heating deicing device is generally mounted at the outer layer of blade body 6, for new
After the vane mold matching of production, directly lay after the completion of polishing, blade can be carried out in the air for the blade being currently running
Laid after polishing.As shown in figure 3, electrical heating deicing device is typically located at the easy ice field of blade, such as before blade body 6
Edge subregion 8,7 need to be punched in commitment positions after the completion of polishing, be the reserved location of wire 5.Electrical heating deicing device utilizes hand
Paste or vacuum perfusion process shaping, to ensure the aeroperformance of blade, it is polishing to after the completion of the shaping of electrical heating deicing device smooth
And spraying protective layer 4.Fill insulant in metapore 7 is completed in the shaping of electrical heating deicing device, specifically, can be resin, rubber
Glue etc..
Electrical heating deicing device mainly includes heater 1, protection device and output control device, heater 1 and guarantor
Protection unit can at the scene pre-assembled and lay to blade body 6 leading edge surface.Wherein heater 1 is before blade body 6
Edge starts to extend certain distance to pressure face and suction surface respectively, and because the Curvature varying of leading edge is larger, such pressure face is with inhaling
Power face separately advantageously ensure that heating material exhibition to continuity.Protection device includes insulation protection device 2 and electromagnetic shielding
Protection device 3, protection device parcel heater 1, output control device is controlling the power density of heater 1.
Specifically, insulation material layer of the insulation protection device 2 for full parcel heater 1, can be with broken-up laying or entirety
Laying.Electromagnetic shielding protection device 3 is to be wrapped in the completely enclosed wire netting inside and outside insulation protection device 2, can be by interior
Outer overall parcel increases the globality of electromagnetic shielding protection device 3, is electromagnetically shielded at the blade root of protection device 3 extraction wire simultaneously
Independent grounding, class " faraday cup " structure is formed, electromagnetic shielding protection device 3 is an equipotential system, and outer layer current strength is again
The big heater 1 in electromagnetic shielding protection device 3 also will not be impacted, effectively prevents the danger of thunderbolt.Electromagnetic shielding is protected
The wire netting grid specification of protection unit 3 is smaller than 1cm*1cm, has fully ensured that effectiveness.
Heater 1 is opened up to multiple heating zones are divided into along blade, and respectively there are two electrodes, heating zone in each heating zone
Between in parallel relationship and length it is consistent, access circuit can be individually controlled, to control heating region.Heating zone is in fixation
Power density under voltage is only relevant with the span-wise length l of heating zone, facilitates system to each positions of each sized blades
Arrangement design, as shown in Fig. 2 heater 1 is opened up to n heating zone is divided into along blade, i.e. circuit broken number is n, and its principle is such as
Under：
The resistance R of material depends on its electricalresistivityρ, length L and area of section S, following relation be present
Wherein sectional area
S=at (2)
Wherein t is the zone of heating thickness of heating zone, and a is zone of heating width
Following relation be present between the input power of heater and resistance R and voltage U again
Shown in Fig. 1, circuit folding is n sections, all-in resistance length
L=nl (4)
Space b has following relation between zone of heating width a and heater overall width w and heating zone
Order, b=λ w, wherein λ are space b and heater overall width w ratio, even vertical (1)-(5) Shi Ke get
Power density Wp=W/ (1w) again, can be obtained
It can be obtained by formula (7), when space and the ratio λ of width, the timing of heating zone span-wise length l and broken number n mono-, can make to add
Width w of the hot subregion from blade root to blade tip changes at any time, but power density keeps constant.Output control device is exported by adjusting
Voltage controls power density, and because each heating zone is in parallel, and length is consistent, and output control device is when receiving deicing signal
Only need control voltage can all heating zones of Synchronization Control input power.
This invention ensures that heating material exhibition to continuity；Heater is divided into multiple heating zones, heating zone
Between be in parallel relationship, access circuit can be individually controlled, to control heating region；Each heating zone is under fixed voltage
Power density is only relevant with its length, facilitates arrangement design of the system to each position of each sized blades；Electromagnetic shielding protection
Device is an equipotential system, can effectively avoid the danger of thunderbolt；Output control device is by adjusting output voltage control power
Density, because each heating zone is in parallel, control device only need control voltage can all heating zones of Synchronization Control input work
Rate.
Claims (10)
1. a kind of electrical heating deicing device for aero-generator rotor blade, it is characterised in that including heater（1）、
Protection device and output control device；The heater（1）From blade body（6）Leading edge starts respectively to pressure face and suction
Face extends certain distance；The protection device includes insulation protection device（2）With electromagnetic shielding protection device（3）, protection device
Wrap up heater（1）；The output control device is controlling heater（1）Power density；The electrical heating deicing
Device, which is provided with, facilitates wire（5）The hole passed through（7）.
2. the electrical heating deicing device according to claim 1 for aero-generator rotor blade, it is characterised in that institute
State insulation protection device（2）To be wrapped in heater（1）The insulation material layer on surface.
3. the electrical heating deicing device according to claim 1 for aero-generator rotor blade, it is characterised in that institute
State output control device and control heater by adjusting output voltage control（1）Power density.
4. the electrical heating deicing device for aero-generator rotor blade according to claim 1 or 3, its feature exist
In the electromagnetic shielding protection device（3）To be wrapped in insulation protection device（2）The wire netting of the closing on surface.
5. the electrical heating deicing device according to claim 4 for aero-generator rotor blade, it is characterised in that institute
State electromagnetic shielding protection device（3）Wire netting grid specification be smaller than 1cm*1cm.
6. the electrical heating deicing device according to claim 1 for aero-generator rotor blade, it is characterised in that institute
State heater（1）Opened up along blade to multiple heating zones are divided into, each heating zone respectively there are two electrodes.
7. the electrical heating deicing device according to claim 6 for aero-generator rotor blade, it is characterised in that institute
State between heating zone in being connected in parallel.
8. the electrical heating deicing device according to claim 6 for aero-generator rotor blade, it is characterised in that institute
It is only relevant with the span-wise length l of heating zone to state power density of the heating zone under fixed voltage.
9. the electrical heating deicing device according to claim 1 for aero-generator rotor blade, it is characterised in that institute
Electrical heating deicing device is stated using hand paste or vacuum perfusion process shaping, is polishing to after the completion of the shaping of electrical heating deicing device smooth
And spraying protective layer（4）.
10. the electrical heating deicing device according to claim 1 for aero-generator rotor blade, it is characterised in that
Metapore is completed in the electrical heating deicing device shaping（7）Interior fill insulant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818321.6A CN107401486A (en) | 2017-09-12 | 2017-09-12 | A kind of electrical heating deicing device for aero-generator rotor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818321.6A CN107401486A (en) | 2017-09-12 | 2017-09-12 | A kind of electrical heating deicing device for aero-generator rotor blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401486A true CN107401486A (en) | 2017-11-28 |
Family
ID=60388740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710818321.6A Pending CN107401486A (en) | 2017-09-12 | 2017-09-12 | A kind of electrical heating deicing device for aero-generator rotor blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969407A (en) * | 2017-12-21 | 2019-07-05 | 波音公司 | Integrated form lightning protection and electrical deicing for aerodynamic structures |
| CN110198574A (en) * | 2018-02-27 | 2019-09-03 | 吴金珠 | Lightning protection electro-heat deicing apparatus and its manufacturing method, blade and wind power generating set |
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| CN201838355U (en) * | 2010-07-21 | 2011-05-18 | 安徽蒙特尔电缆集团有限公司 | Insulating halogen-free environment-friendly type sheath control cable of thermoplastic polyurethane elastic body |
| CN203057562U (en) * | 2012-12-28 | 2013-07-10 | 江苏兴缘高温线缆有限公司 | A shielding carbon fiber heating cable |
| CN103291560A (en) * | 2013-04-26 | 2013-09-11 | 湘电新能源有限公司 | Anti-icing method of carbon crystal and wind power generator anti-icing system employing method |
| CN204946599U (en) * | 2015-08-10 | 2016-01-06 | 焦作同心电缆有限公司 | A kind of expanding aerial cable |
| CN106837682A (en) * | 2017-03-14 | 2017-06-13 | 上海电气风电集团有限公司 | A kind of wind turbine blade with lightning protection deicing function |
| CN207212599U (en) * | 2017-09-12 | 2018-04-10 | 无锡风电设计研究院有限公司 | A kind of electrical heating deicing device for aero-generator rotor blade |
-
2017
- 2017-09-12 CN CN201710818321.6A patent/CN107401486A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201838355U (en) * | 2010-07-21 | 2011-05-18 | 安徽蒙特尔电缆集团有限公司 | Insulating halogen-free environment-friendly type sheath control cable of thermoplastic polyurethane elastic body |
| CN203057562U (en) * | 2012-12-28 | 2013-07-10 | 江苏兴缘高温线缆有限公司 | A shielding carbon fiber heating cable |
| CN103291560A (en) * | 2013-04-26 | 2013-09-11 | 湘电新能源有限公司 | Anti-icing method of carbon crystal and wind power generator anti-icing system employing method |
| CN204946599U (en) * | 2015-08-10 | 2016-01-06 | 焦作同心电缆有限公司 | A kind of expanding aerial cable |
| CN106837682A (en) * | 2017-03-14 | 2017-06-13 | 上海电气风电集团有限公司 | A kind of wind turbine blade with lightning protection deicing function |
| CN207212599U (en) * | 2017-09-12 | 2018-04-10 | 无锡风电设计研究院有限公司 | A kind of electrical heating deicing device for aero-generator rotor blade |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969407A (en) * | 2017-12-21 | 2019-07-05 | 波音公司 | Integrated form lightning protection and electrical deicing for aerodynamic structures |
| CN109969407B (en) * | 2017-12-21 | 2024-04-26 | 波音公司 | Integrated lightning protection and electrical deicing for aerodynamic structures |
| CN110198574A (en) * | 2018-02-27 | 2019-09-03 | 吴金珠 | Lightning protection electro-heat deicing apparatus and its manufacturing method, blade and wind power generating set |
| CN110198574B (en) * | 2018-02-27 | 2022-08-09 | 新疆金风科技股份有限公司 | Lightning protection electric heating ice melting device and manufacturing method thereof, blade and wind generating set |
| US11598316B2 (en) | 2018-02-27 | 2023-03-07 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Electric heating apparatus for deicing, method for manufacturing the same, blade and wind turbine including the same |
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| 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 |
Application publication date: 20171128 |
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| RJ01 | Rejection of invention patent application after publication |