CN207647702U - A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating - Google Patents
A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating Download PDFInfo
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- CN207647702U CN207647702U CN201721555722.9U CN201721555722U CN207647702U CN 207647702 U CN207647702 U CN 207647702U CN 201721555722 U CN201721555722 U CN 201721555722U CN 207647702 U CN207647702 U CN 207647702U
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- blade
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- blade root
- switch board
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- 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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Abstract
A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating, including blade root switch board, blade root heating device, leading edge heating zone and recirculating zone, the blade root switch board includes hot blast blade root switch board and Electric radiant Heating Film blade root switch board, and the hot blast blade root switch board and Electric radiant Heating Film blade root switch board are installed at blade root；The blade root heating device includes heater, air blower and connection heating zone connecting pipe；The leading edge heating zone includes blade inlet edge hot air chamber and electrical heating laying；The recirculating zone has web baffle, reverse flow baffle and reflux U-shaped pipe.The utility model avoids the entire cavity air of traditional heating and the inefficiency problem brought, and can not only go out blade inlet edge icing, also prevent the risk of lightning stroke, deicing efficiency and effect are greatly enhanced while ensureing safe.
Description
Technical field
The utility model belongs to wind power generation field, is related to a kind of wind-power electricity generation blade of hot blast Electric radiant Heating Film Hybrid Heating
Deicing system.Be mainly used for coping with Large-scale Wind Turbines high humility, low temperature area operation during the leaf that generates
The phenomenon that piece surface freezes, the load after preventing the power because caused by freezing blade surface from declining and shutting down and blade icing
Blade is caused to damage, deicing is heated to blade by deicing system, the generated energy of Wind turbine is improved and ensures the wind turbine longevity
Life and safety.
Background technology
Nowadays, with the continuous expansion of low wind speed wind power plant construction scale, Yun-Gui Plateau wind power plant turbines vane is big
Amount is influenced by frost, and blade ice formation issues become increasingly conspicuous.The annual ice period for having 2 months.Annual electricity generating capacity loss 1%~10%,
Severe area is 20%~50%.Meanwhile icing also results in the change of vane airfoil profile geometry and causes wind wheel appearance serious
Unbalanced moments, drastically very big blade performance load cause blade the catastrophe failures such as crack, fracture, or even to evoke complete machine intrinsic
Frequency is collapsed, and wind power generating set operational safety has been seriously affected.Therefore, it is right at work to improve wind power generating set
It is extremely urgent to solve the problems, such as that pneumatic equipment bladess surface freezes for the resistivity of adverse circumstances.
Existing anti-clearing ice technology mainly has the technology for increasing blade surface coating, blade inner cavity hot blast deicing skill now
Art and blade inlet edge electric heating film laying clearing ice technology.Traditional blade inner cavity hot blast clearing ice technology adds without thunderbolt risk
The thermal efficiency is relatively low, and blade inlet edge electric heating film laying clearing ice technology deicing efficiency is high compared to internal logical hot gas, but is easy to be led to thunder
It hits.
Invention content
Prior art power because caused by freezing wind generator set blade surface declines and shuts down in order to prevent, even
The blade brought cracks, fracture the problems such as collapsing with unit, and the utility model passes through a kind of hot blast electrical heating mixed heating
Wind power generating set blade deicing system, mutually tied with electrical heating by hot-air blower under risk of the system that ensure that without lightning stroke
The mode of conjunction heats blade cavity gas, and the inefficiency for avoiding the entire cavity air of traditional heating and bringing is asked
Topic, can not only go out blade inlet edge icing, also prevent the risk of lightning stroke, deicing is greatly enhanced while ensureing safe
Efficiency and effect.
In order to solve the above-mentioned technical problem the utility model proposes the following technical solution：
A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating, including blade root switch board, blade root add
Thermal, leading edge heating zone and recirculating zone, the blade root switch board include hot blast blade root switch board and Electric radiant Heating Film blade root control
Cabinet processed, the hot blast blade root switch board and Electric radiant Heating Film blade root switch board are installed at blade root；The blade root heating device packet
Include heater, air blower and connection heating zone connecting pipe；The leading edge heating zone includes blade inlet edge hot air chamber
And electrical heating laying；The recirculating zone has web baffle, reverse flow baffle and reflux U-shaped pipe.
Further, the hot blast blade root switch board is used for independent control hot drum wind system, the Electric radiant Heating Film blade root
Switch board is used for independent control heated by electrothermal film.
Further, the blade root heating system further includes the gear of the certain position setting at blade leading edge and leading web
Plate；The connection heating zone connecting pipe depends on the laying of leading edge web；The heater is divided into the work(of transferring the files of different capacity
Energy or electrodeless Variable power, the air blower can adjust air blast flux according to heating power.
Further, Electric radiant Heating Film laying is laid on blade inlet edge, is laid with close to leaf root part.The Electric radiant Heating Film laying packet
Include insulating layer and electrothermal layer.
The Electric radiant Heating Film laying is connect with the power controller for being adjusted operating power according to demand.Described
The power of Electric radiant Heating Film laying is controllable, can be adjusted operating power according to demand.
It is laid with gas in the leading edge air heating chamber and heats intensifier, increases the heat convection with leading edge shell.Increase
Intensity device includes fluidic device or disturbing flow device.
The web baffle connects leading edge web and rear web, prevents air from being flowed between two webs at blade tip
It is dynamic.
The reverse flow baffle connection rear shell and rear web enters reflux for introducing air between web.
Return air is flowed back and carries out circulating-heating from being introduced between web in air blower by the U-shaped return duct.
After the design of this deicing system, it can effectively realize and blade inlet edge and surface are effectively heated, pass through paving
If heating pipe and insulating layer and increase return-flow system, concentration heat blade inlet edge, the entire chamber of traditional heating is avoided
Body air and the inefficiency problem brought, can not only go out blade inlet edge icing, while also can guarantee blade entirety intracavitary temperature
Degree rises, and loop heating system improves the efficiency of heating surface, solves that traditional hot blast heating speed is slow and electrical heating thunder
Hit the problem of risk increases.It can be effectively prevented the problem of blade surface freezes, ensure that Wind turbine is easily freezing
Normal safe operation and normal power generation in environment.
Description of the drawings
Fig. 1 is a kind of the first reality of the wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating of the utility model
Apply a structural schematic diagram.
Fig. 2 is a kind of the second reality of the wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating of the utility model
Apply a structural schematic diagram.
Fig. 3 is that a kind of third of the wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating of the utility model is real
Apply a structural schematic diagram.
Fig. 4 is a kind of the 4th reality of the wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating of the utility model
Apply a structural schematic diagram.
Fig. 5 is a kind of the 5th reality of the wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating of the utility model
Apply a structural schematic diagram.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Referring to Fig.1~Fig. 5, a kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating, including hot drum
Fan blade root switch board 1, Electric radiant Heating Film blade root switch board 2, air blower 3, heater 4, heater connect heating zone connecting pipe 5, electricity
Heating film laying 6, heating zone inlet baffle 7, jet stream pipeline 8, leading edge web 9, web baffle 10, rear web 11, reflux gear
Plate 12 and U-shaped return duct 13.
Hot blast blade root switch board 1 and Electric radiant Heating Film blade root switch board 2 are mounted on wind generator set blade root, for controlling
Blower system and control electric heating membranous system heating are heated, two switch boards are mutual indepedent, ensure two kinds of mode of heating individual secures.
Two switch boards all have open circuit and lightning-protection module, can prevent because of security risk caused by short circuit and thunder and lightning.Two controls
Should also have heating function in cabinet, can ensure that equipment is normally started and run in low temperature and moist environment.
Air blower 3 and heater 4 are fixed by the bracket, and are connected between the two by connecting pipe, and leading edge web dress is depended on
It sets, is auxiliarily fixed simultaneously also by blade root shell.The heat that air blower is generated heater by the air of blowout is in blade
Cycle so that blade interior temperature uniformly increases.Heater power can transfer the files, and be capable of providing the power and section of efficient deicing
The power of energy deicing.The flow of air blower can carry out corresponding matching flow and pressure according to heater power, ensure heater
Not excess temperature, whole intracavitary can be recycled fully, prevent heat build-up.
Heater connects heating zone connecting pipe 5 and connects heater and heating zone, and connecting pipe uses fiberglass asphalt mixtures modified by epoxy resin
The shape of fat material, pipeline can be round, rectangular, semicircle, integrally depend on web laying, and appearance adds insulating layer to be kept the temperature
Processing, enables heat fully to conduct heat in deicing region.Duct thickness design is related to blade loading intensity according to length, needs
Consider control overall weight and heat insulation effect.
Electric heating film laying 6 is laid in cause leaf in front of the blade to blade root, and laying insulating layer is by blade inner cavity and electric heating
The spaced heat of film layer ensures that heat all conducts heat to blade surface, and Electric radiant Heating Film laying outermost layer is laid with metal mesh and carries out lightning Protection Design.
Whole electric heating film laying should be laid with as close to blade outer layer, reach best deicing effect.Laying length is about leaf
The one third of piece, width are about the one third of aerofoil profile perimeter.
The setting of heating zone inlet baffle 7 is in middle part of blade, connection blade shell and blade inlet edge web, by the heating chamber bodily form
At a closed heating interval.Heating zone inlet baffle 7 is needing to carry out isothermal holding close to the face of unheated zone, prevents from adding
Hot-zone heat losses, while needing to connect the connection of heating zone connecting pipe 5 with heater, junction should carry out adiabatic and closed place
Reason.
Jet stream pipeline 8 is the device that heating zone increases heat convection, and fluidic device main function is heat in enhancing heating zone
The heat convection of air and leading edge shell can more exchange heat under identical temperature condition, improve capacity usage ratio.
Jet stream number is divided according to length of blade, generally presses every section of division of 5m.
The distance of leading edge web 9 and rear web 11 to blade tip shell needs to increase, and increases the sectional area of air flowing.Abdomen
Plate baffle 10 connects leading edge 9 and rear web 10, and space is blocked, thermal current is allowed to be flowed through from rear cavity, to rear leaf tip
Divide and is heated.
Reverse flow baffle 12 is mounted at 45 degree in rear cavity with rear web, at blade tip about one third.Reflux
12 unheated zone face of baffle increases insulating layer.Reverse flow baffle 12 does closed and isothermal holding with rear web interface.
U-shaped return duct 13 connects cavity and air blower between front and back web, and heating space is made to form a closed reflux space,
Air circulation can preferably be made, to blade carry out high-efficiency heating, it is small to icing amount, on region of the wind energy conversion system without influence without
Heating, improves the whole efficiency of heating surface.
As shown in fig.2, the non-gas heating region of rear can also be selected according to wind power generating set local environment situation
Whether rear Electric radiant Heating Film laying 14 is increased.Rear Electric radiant Heating Film laying also has insulating layer, electric membranous layer and lightning protection metal net layer.
As shown in fig.3, heating intensifier may be spoiler 15, hot-air and leaf are increased by spoiler 15
Piece surface heat convection.
Shown in Figure 4 and 5, heating air-flow can also be relative to thermal current direction before on the contrary, first adding to blade tip
High-temperature can be brought the blade tip of icing most serious by heat, rear hot blade inlet edge, then carry out deicing to blade inlet edge again.
Finally it should be noted that：The above is only the preferred embodiment of the present invention, is not limited to this practicality
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It can still revise the technical solution described in previous embodiment, or equally be replaced to which part technical characteristic
It changes.Within the spirit and principle of the utility model, any revision, equivalent replacement, improvement etc. made by should be included in this
In the protection domain of utility model.
Claims (9)
1. a kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating, it is characterised in that：It is controlled including blade root
Cabinet, blade root heating device, leading edge heating zone and recirculating zone, the blade root switch board include hot blast blade root switch board and electric heating
Film blade root switch board, the hot blast blade root switch board and Electric radiant Heating Film blade root switch board are mounted at blade root；The blade root
Heating device includes heater, air blower and connection heating zone connecting pipe；The leading edge heating zone includes blade inlet edge heat
Air heating chamber and electrical heating laying；The recirculating zone has web baffle, reverse flow baffle and reflux U-shaped pipe.
2. blade deicing system as described in claim 1, it is characterised in that：The hot blast blade root switch board is for independent
Hot drum wind system is controlled, the Electric radiant Heating Film blade root switch board is used for independent control heated by electrothermal film.
3. blade deicing system as claimed in claim 1 or 2, it is characterised in that：The blade root heating system further include
The baffle of blade leading edge and certain position setting at leading web；The connection heating zone connecting pipe depends on leading edge web paving
It sets；The heater is divided into transfer the files function or the electrodeless Variable power of different capacity, and the air blower can be according to heating work(
Rate adjusts air blast flux.
4. blade deicing system as claimed in claim 1 or 2, it is characterised in that：Electric radiant Heating Film laying is laid on blade inlet edge, leans on
Nearly leaf root part is laid with, and the Electric radiant Heating Film laying includes insulating layer and electrothermal layer.
5. blade deicing system as claimed in claim 4, it is characterised in that：The Electric radiant Heating Film laying with for according to demand
It is adjusted the power controller connection of operating power.
6. blade deicing system as claimed in claim 1 or 2, it is characterised in that：It is laid in the leading edge air heating chamber
Gas heats intensifier, and for increasing and the heat convection of leading edge shell, intensifier includes fluidic device or disturbing flow device.
7. blade deicing system as claimed in claim 1 or 2, it is characterised in that：The web baffle is at blade tip and company
Connect leading edge web and rear web.
8. blade deicing system as claimed in claim 1 or 2, it is characterised in that：The reverse flow baffle connects rear shell
With rear web, enter reflux between web for introducing air into.
9. blade deicing system as claimed in claim 1 or 2, it is characterised in that：The U-shaped return duct by return air from
It is introduced between web in air blower and flows back and carry out circulating-heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555722.9U CN207647702U (en) | 2017-11-20 | 2017-11-20 | A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555722.9U CN207647702U (en) | 2017-11-20 | 2017-11-20 | A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating |
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| Publication Number | Publication Date |
|---|---|
| CN207647702U true CN207647702U (en) | 2018-07-24 |
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ID=62890280
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721555722.9U Active CN207647702U (en) | 2017-11-20 | 2017-11-20 | A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating |
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| CN (1) | CN207647702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905962A (en) * | 2017-11-20 | 2018-04-13 | 浙江运达风电股份有限公司 | A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating |
-
2017
- 2017-11-20 CN CN201721555722.9U patent/CN207647702U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905962A (en) * | 2017-11-20 | 2018-04-13 | 浙江运达风电股份有限公司 | A kind of wind-power electricity generation blade deicing system of hot blast Electric radiant Heating Film Hybrid Heating |
| CN107905962B (en) * | 2017-11-20 | 2024-06-11 | 运达能源科技集团股份有限公司 | Wind power generation blade deicing system adopting hot blast electrothermal film hybrid heating |
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