CN207634252U - Fan blade anti-icing and deicing system - Google Patents
Fan blade anti-icing and deicing system Download PDFInfo
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- CN207634252U CN207634252U CN201721852398.7U CN201721852398U CN207634252U CN 207634252 U CN207634252 U CN 207634252U CN 201721852398 U CN201721852398 U CN 201721852398U CN 207634252 U CN207634252 U CN 207634252U
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- icing
- fan blade
- deicing
- air
- condenser
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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
Abstract
The utility model discloses a kind of fan blade anti-icing and deicing systems, including the hot anti-icing equipment of gas, expansion tube deicer, electrical heating deicing device, layer deicer and monitor controller.The hot anti-icing equipment of gas includes condenser, air supply duct and air inducing pipeline；Air supply duct is connect with condenser, for sending the hot wind exhaust of condenser to axial fan hub and engine room inside；Air inducing pipeline is set at axial fan hub, for introducing the hot-air at axial fan hub inside fan blade.Expansion tube deicer includes multiple expansion tubes parallel with one another being laid on fan blade.Electrical heating deicing device includes multiple resistance wires parallel with one another being laid on fan blade.Layer deicer includes the hydrophobic coating being arranged on fan blade.Monitor controller includes anti-icing and deicing control module and the acceleration transducer, temperature sensor and the fibre optical sensor that are electrically connected with anti-icing and deicing control module.This system capacity usage ratio is high, and accumulated ice removal effect is ideal.
Description
Technical field
The utility model is related to wind turbine de-icing techniques fields, more particularly to a kind of fan blade anti-icing and deicing system
System.
Background technology
Nearly ten years, China's energy transition process is constantly accelerated, and Wind Power Generation Industry achieves fast development, and China has become generation
The maximum country of scale installed capacity of wind-driven power in boundary.
As wind-powered electricity generation runs the constantly improve of technology, the monitoring of wind turbine and O＆M technology are also paid more and more attention.Although wind
Machine type selecting can carry out special design and manufacture according to the weather condition of addressing region, and still, anomalous weather condition frequently goes out
Now but also the wind turbine of exposure in the natural environment is by many safe operation challenges.In China, such as Hunan, Hubei, Guizhou,
The ground such as northeast of Guangxi, North Guangdong and Jiangxi some areas are held due to special geographic climate under high humidity low temperature environment
Icing layer easily is formed on fan blade surface, and different high humidity low temperature environments can form different types of icing.In Inner Mongol, east
Ground, the Heavy snow weather such as north, Xinjiang and Gansu can equally cause fan blade snowberg icing.Said circumstances can reduce wind turbine wind
Wheel speed simultaneously reduces Wind energy extraction efficiency, meanwhile, blade performance load can be increased and improve control difficulty.It, can under extreme case
Fan operation can be made to overload and collapsed, the accidents such as blade broken, and blade rotation unbalance caused by icing imbalance can drop
The service life of low wind turbine.Most of wind turbines can be forced out of service when meeting with blade icing snowberg, cause wind resource
Serious waste.
For sustainable utilization wind energy when microthermal climate is long in winter, it is necessary to take corresponding anti-icing and deicing measure.Currently,
The fan blade de-icing method proposed both at home and abroad is mainly gentle including mechanical deicing, coating deicing, ultrasonic wave deicing, thermal energy deicing
Dynamic band deicing etc..Electrical heating anti-icing and deicing is most viable and effective de-icing method.However, although electrical heating deicing has highest
Capacity usage ratio, still, electrical heating energy consumption accounts for relatively high in wind turbine annual electricity generating capacity, causes larger electricity damage
Consumption.This is just seriously unfavorable for improving wind-power electricity generation degree electricity cost, is unfavorable for improving wind-powered electricity generation bidding in electric power Free Business Market
Ability.
Currently, for the anti-icing ice-melt measure of existing fan blade there are the problem of, there is an urgent need for it is a kind of efficiently, economical anti-icing melt
Ice scheme.
Utility model content
The purpose of this utility model is to provide a kind of fan blade anti-icing and deicing systems, to solve to exist in the prior art
Anti-icing ice-melt the big technical problem of kwh loss.
To achieve the goals above, the utility model uses following technical scheme：
A kind of fan blade anti-icing and deicing system provided by the utility model, including：
The hot anti-icing equipment of gas, including condenser, air supply duct and air inducing pipeline；The air supply duct connects with the condenser
It connects, for sending the hot wind exhaust of the condenser to axial fan hub and engine room inside；The air inducing pipeline is set to axial fan hub
Place, for introducing the hot-air at axial fan hub inside fan blade；
Expansion tube deicer, including multiple expansion tubes；Multiple expansion tubes are laid on fan blade, and multiple
The expansion tube is parallel with one another；
Electrical heating deicing device, including multiple resistance wires；Multiple resistance wires are laid on fan blade, and multiple
The resistance wire is parallel with one another；
Layer deicer, including hydrophobic coating；The hydrophobic coating is arranged on fan blade；
And monitor controller, including anti-icing and deicing control module and electrical with the anti-icing and deicing control module
Acceleration transducer, temperature sensor and the fibre optical sensor of connection.
Further, pressure fan is equipped in the air supply duct.
Further, auxiliary electric heater unit is equipped in the air supply duct.
Further, the condenser is connected with air inducing main pipeline；
The air inducing main pipeline into the condenser for introducing cold air.
Further, the air inducing main pipeline is connected with cool air inlet and blade cool air inlet in cabin.
Further, the condenser is also associated with the outer cool air inlet of cabin.
Further, it is equipped with turbocharging air pump in each expansion tube.
Further, the resistance wire is arranged alternately with the expansion tube on the length direction of fan blade.
Further, fan blade surface is disposed with metal Withstand voltage layer, the expansion tube, elastic membrane and described hydrophobic
Coating.
Further, fan blade surface is disposed with thermal insulation layer, the resistance wire, thermal insulation layer, metal
Recuperation layer and the hydrophobic coating.
Fan blade anti-icing and deicing system provided by the utility model, the waste heat being discharged using condenser are inputted in cabin
Inside portion and fan blade, the hot temperature of gas of the running temperature and blade interior that ensure engine room inside, achieve the purpose that it is anti-icing, and
And acted on using the periodic expansion of expansion tube, the weak ice sheet at the initial stage of freezing is detached with blade, makes the ice of blade outer surface
Layer is broken and falls off, meanwhile, it in the way of electrically heated, directly melts, the accumulated ice that removal is thicker, in addition, using being arranged in wind
The layer deicer of machine blade surface, slows down icing progress, melts the ice or reduces the bonding force of ice and object surface, promotes to melt
Ice lands, and the capacity usage ratio of this anti-icing and deicing system is higher, and accumulated ice removal effect is ideal, solves existing anti-icing ice-melt and arranges
The big problem of kwh loss is applied, is adapted for promoting and applying.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the hot anti-icing equipment of gas in a kind of fan blade anti-icing and deicing system that the utility model embodiment provides
Part-structure schematic diagram；
Fig. 2 is the hot anti-icing equipment of gas in a kind of fan blade anti-icing and deicing system that the utility model embodiment provides
Another part-structure schematic diagram；
Fig. 3 is the expansion tube deicer in a kind of fan blade anti-icing and deicing system that the utility model embodiment provides
Structural schematic diagram；
Fig. 4 is the electrical heating deicing device in a kind of fan blade anti-icing and deicing system that the utility model embodiment provides
Structural schematic diagram；
Fig. 5 is the knot of the layer deicer in a kind of fan blade anti-icing and deicing system that the utility model embodiment provides
Structure schematic diagram；
Fig. 6 is the another of the layer deicer in a kind of fan blade anti-icing and deicing system that the utility model embodiment provides
One structural schematic diagram.
Reference numeral：
1- blades；2- blade bottom liners；4- bearings；5- fever gear-boxes；6- generators；7- frequency converters；8- condensers；9- is cold
But main pipeline；10- gate valves；11- heat dissipation main pipelines；12- air inducing main pipelines；The outer cool air inlet of 13- cabins；It is cold in 14- cabins
Air intake；15- blade cool air inlets；16- air supply ducts；17- cabin tail part exhaust mouths；19- air inducing pipelines；20- turbines
Force(d) (draft) fan；21- partition boards；22- expansion tubes；24- inlet control valves；25- discharge control valves；27- electrified wires；28- power supply electricity
Source；29- pressure sensors；30- sensor signal lines；31- resistance wires；32- heats service cable；33- wire temperatures sense
Device；40- hydrophobic coatings；41- metal Withstand voltage layers；42- elastic membranes；43- thermal insulation layers；44- metal recuperation layers.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Embodiment：
In the alternative of the present embodiment, as shown in Figures 1 to 5, a kind of fan blade provided in this embodiment is anti-icing
Deicing system, including：
The hot anti-icing equipment of gas, including condenser 8, air supply duct 16 and air inducing pipeline 19；Air supply duct 16 connects with condenser 8
It connects, for sending the hot wind exhaust of condenser 8 to axial fan hub and engine room inside；Air inducing pipeline 19 is set at axial fan hub, is used
It is introduced inside fan blade 1 in by the hot-air at axial fan hub；
Expansion tube deicer, including multiple expansion tubes 22；Multiple expansion tubes 22 are laid on fan blade 1, and more
A expansion tube 22 is parallel with one another；
Electrical heating deicing device, including multiple resistance wires 31；Multiple resistance wires 31 are laid on fan blade 1, and more
A resistance wire 31 is parallel with one another；
Layer deicer, including hydrophobic coating 40；Hydrophobic coating 40 is arranged on fan blade 1；
And monitor controller, including anti-icing and deicing control module and with anti-icing and deicing control module be electrically connected
Acceleration transducer, temperature sensor and fibre optical sensor.
In the present embodiment, it using bearing 4, the cooling device of fever gear-box 5, generator 6 and frequency converter 7, that is, condenses
The waste heat that device 8 is discharged is inputted by air supply duct 16 and air inducing pipeline 19 inside engine room inside and fan blade 1, to internal empty
Gas is preheated, and ensures the running temperature T of engine room insideOperationWith the hot temperature of gas inside blade 1, reach cooling and anti-icing pair
Weight purpose, it is more energy saving, efficient.
It should be noted that the course of work of condenser 8 is：Cooling main pipeline 9 by the coolant of liquid be sent into bearing 4,
Generate heat gear-box 5, generator 6 and frequency converter 7；Radiate main pipeline 11 and bearing 4, fever gear-box 5, generator 6 and frequency converter 7
Hot channel be separately connected, and then be converted into gaseous coolant and be sent into condenser 8；Condenser 8 is to gaseous coolant
It is cooled down.
Moreover, condenser 8 uses gas-liquid two-phase coolant, preferably environmental protection fluorine carbon compound coolant (ten fluorine penta of dihydro
Alkane), it radiates to main heat-producing devices such as bearing 4, fever gear-box 5, generator 6 and frequency converters 7.Coolant is with liquid shape
Formula enters bearing 4, fever gear-box 5, generator 6 and frequency converter 7 from cooling main pipeline 9 by gate valve 10；Then, with gaseous state shape
Formula imports heat dissipation main pipeline 11 from each equipment cooling pipeline, enters condenser 8 by way of gate valve 10.
In the alternative of the present embodiment, pressure fan is equipped in air supply duct 16.
In the alternative of the present embodiment, auxiliary electric heater unit is equipped in air supply duct 16.
In the present embodiment, auxiliary electric heater unit, preferably electrical heating grid are additionally provided in air supply duct 16.
In the present embodiment, the hot wind exhaust of condenser 8, by pressure fan, by air supply duct 16 send to axial fan hub,
Engine room inside, it is anti-icing inside pair fan blade being connected with axial fan hub 1 preheat, and ensure cabin normal operating temperature
TOperation.When cooling thermal discharge cannot maintain this temperature, air is heated by the auxiliary electric heater unit in air supply duct 16；When cold
But when heat extraction disclosure satisfy that this temperature, hot wind exhaust drains into cabin tail part exhaust mouth 17 by pressure fan, and then drains into outside cabin
Portion.
By above-mentioned setting, the hot wind that condenser 8 is discharged makes full use of, and reaches cooling and anti-icing dual mesh
's.
Also, the hot-air at axial fan hub is sent to by air inducing pipeline 19 inside fan blade 1.
Since large fan blade 1 is generally by 21 reinforcement by connection of partition board, 21 both sides hollow space of partition board uses small-sized whirlpool
It takes turns force(d) (draft) fan 20 and carries out air inducing, to realize air circulation inside fan blade 1, cause hot-air cycle, maintain blade 1
Internal temperature simultaneously preheat anti-icing.
In the alternative of the present embodiment, condenser 8 is connected with air inducing main pipeline 12；Air inducing main pipeline 12 is used for cold
Cold air is introduced in condenser 8.
In the present embodiment, air-introduced machine is equipped in air inducing main pipeline 12.
In the alternative of the present embodiment, air inducing main pipeline 12 is connected with cool air inlet 14 and the cold sky of blade in cabin
Gas entrance 15.
In the present embodiment, cold air is by cool air inlet in cabin 14 and blade cool air inlet 15, and is drawing
Under the action of wind turbine, air inducing main pipeline 12 is imported.
Condenser 8 cools down gaseous coolant in a manner of cross-ventilated, and cold air source is cold air in cabin
Entrance 14 and blade cool air inlet 15, are introduced by air-introduced machine, import air inducing main pipeline 12.
In the alternative of the present embodiment, condenser 8 is also associated with cool air inlet 13 outside cabin.
In the present embodiment, the outer cool air inlet 13 of cabin is interior is equipped with air-introduced machine.
Temperature monitoring is carried out to the cold air of cool air inlet in cabin 14 and blade cool air inlet 15, when warm in cabin
When temperature cannot reach condensation efficiency in degree, blade 1, or respectively reach cabin normal operating temperature TOperation, anti-icing set temperature
TIt is anti-icingWhen, stop cool air inlet 14 and blade cool air inlet 15 out of cabin and introduces cold air.At this point, slave cold sky out of my cabin
Gas entrance 13 introduces cold air to condenser 8 by air-introduced machine.
Further, it is segmented according to the Design of Mechanical Structure of fan blade 1, obtains different 1 anti-icing and deicing areas of blade
Domain, be respectively labeled as subregion 1, subregion 2 ..., subregion N, the quantity of expansion tube 22 is identical as the quantity of subregion.In each point
Area, 22 spanwise arrangement of expansion tube are connected to along longitudinal geometrical expansion direction of blade 1 on blade 1 on blade 1.
In the alternative of the present embodiment, turbocharging air pump is equipped in each expansion tube 22.
In the present embodiment, the expansion tube 22 of different subregions is arranged in parallel using distributed；For each expansion tube 22,
Turbocharging air pump has 1 inside of blade in the preheated air suction line of certain temperature.
It should be noted that expansion tube 22 is opened up to setting on blade 1, and the icing mechanism of 1 forward position of blade and rear is not
Together, the ice layer thickness under the same terms is different with icing development progress, thus the windward side to expansion tube 22 and leeward side difference
Individually controlled.The inlet of expansion tube 22 controls air inflow by inlet control valve 24, and exit is controlled by discharge control valve 25
Make tolerance.The forward position of expansion tube 22 and rear under certain subregion are controlled respectively with discouraged by the air-breathing of expansion tube 22, can tied
Ice initial stage targetedly removes ice sheet, improves deicing validity, accelerates deicing efficiency.
Expansion tube 22 further utilizes the hot gas source that condenser 8 generates, and uses distributed parallel arrangement with to icing position
Local heating.In the case where maintaining the air in expansion tube 22 to have certain temperature, controlled using inlet control valve 24 and outlet
Valve 25 processed realizes pressurization and pressure release, periodic expansion is formed to expansion tube 22, is transported by this machinery of expansion tube 22
It is dynamic, the weak ice sheet at the initial stage of freezing is detached with blade 1, keeps the ice sheet of 1 outer surface of blade broken and falls off, improve economy with
Validity.
In addition, the preheated air in expansion tube 22 has certain heat storage capacity, the ice sheet for detaching fragmentation can be melted,
And thrown away trash ice using the centrifugal force that the propeller machine of blade 1 rotates, the deicing validity at icing initial stage is substantially increased,
Slow down or avoid the generation of serious accumulated ice.Also, distributed deicing substantially increases the specific aim of deicing；It opens up opposite to deicing
In radial deicing, arrangement and control are all more convenient.
Preferably, expansion tube 22 is made of the fabric of gluing.
Specifically, turbocharging air pump, inlet control valve 24 and discharge control valve 25 by current start switch with it is pre-
The electrified wire 27 being embedded in partition board 21 is connected, and is powered by the power supply 28 in axial fan hub or cabin.
In the present embodiment, in order to which the pressure to expansion tube 22 controls, pressure, pressure are monitored using pressure sensor 29
Force snesor 29 is also connected with the electrified wire 27 for being embedded in partition board 21 in advance.Pressure signal is passed back anti-icing by sensor signal lines 30
Deicing control module.
Specifically, electrified wire 27 can be connect by brush with the power supply 28 in wheel hub or cabin, sensor signal
Line 30 can also be connect by brush with anti-icing and deicing control module.
In addition, if pressure sensor 29 uses wireless mode, convenience can be improved.
Further, resistance wire 31 is set in the different subregions of fan blade 1, in each subregion, the radial cloth of resistance wire 31
It sets, i.e., the length direction along blade 1 is connected on blade 1；Multiple resistance wires 31, the same subregion are respectively provided in each subregion
Interior multiple resistance wires 31 are opened up to being arranged on blade 1.
Also, the resistance wire 31 of different subregions is arranged in parallel using distributed.
Resistance wire 31 is arranged in parallel using distributed, and Discrete control is to 1 icing position local heating of blade, to improve economical
Property.
Moreover, distributed electrically heated mode, can directly be melted by electrical heating, removes thicker accumulated ice, energy
Utilization rate is higher, and accumulated ice removal effect is ideal.
Simultaneously as electrical heating deicing mode power consumption is larger, relatively high, therefore distributed electrical is accounted in wind turbine power generation amount
Heating deicing substantially increases the specific aim of deicing, and reduces the power consumption of deicing.
In the alternative of the present embodiment, resistance wire 31 replaces with expansion tube 22 on the length direction of fan blade 1
Setting.
In the present embodiment, resistance wire 31 is alternately arranged with expansion tube 22 on the length direction of fan blade 1, i.e., in diameter
To the expansion tube 22 of the gap setting spanwise arrangement of the resistance wire 31 of arrangement.
It should be noted that the icing progress descending arrangement due to fan blade 1 is forward position, rear and middle part respectively, because
This, 1 up-front resistance wire of blade, 31 distribution density is about 3-4 times of 31 distribution density of resistance wire among blade 1, after blade 1
31 distribution density of resistance wire of edge is about 2-3 times of 31 distribution density of resistance wire among blade 1.
Deicing is electrically heated using the resistance wire 31 of different distribution densities, radial arrangement, before fully considering blade 1
The ice sheet formation mechenism on edge, rear and middle part, enhances the specific aim of deicing, contributes in the premise for ensureing deicing validity
Under, further reduce deicing power consumption.
When the hot anti-icing equipment of gas and expansion tube deicer cannot solve the problems, such as, local electrical heating deicing is taken.Electricity
Resistance silk 31 is combined with each other with expansion tube 22, when being electrically heated to a certain degree, carries out comprehensive deicing in conjunction with expansion tube 22, raising removes
Ice efficiency.
That is, when the development that freezes is very fast or to the serious accumulated ice stage when, in the hot anti-icing equipment of gas, expansion tube deicing
On the basis of device, comprehensive deicing is carried out in conjunction with electrical heating deicing device is enabled, improves deicing efficiency.
In the present embodiment, the heating service cable 32 that resistance wire 31 is switched by current start and is embedded in advance in partition board 21
Connection；Heating service cable 32 is connect by brush with the power supply 28 in wheel hub or cabin.
Also, multiple resistance wires 31 in a subregion are one group, in order to control electrical heating temperature, every group of resistance
Forward position, rear and the middle part of silk 31 are respectively provided with two groups of wire temperature sensors 33；Wire temperature sensor 33 passes through sensing
Device signal wire 30 is connected with anti-icing and deicing control module.
Specifically, wire temperature sensor 33 is powered by electrified wire 27, and electrified wire 27 is connected with power supply 28.
Further, layer deicer includes hydrophobic coating 40, is covered in 1 surface of fan blade, slows down icing progress, make ice
Melt or reduce the bonding force of ice and object surface, promotes ice-melt landing.
Hydrophobic coating 40 has the functions such as sealing waterproof, anticorrosion, electrical isolation, ice-covering-proof.When aforementioned anti-icing and deicing measure
When carrying out to a certain extent, when such as ice sheet fragmentation or thawing, hydrophobic coating 40 plays a role, and accelerates ice sheet ablation, is ensureing to remove
While ice validity, deicing efficiency is further improved, reduces deicing cost.
For 1 surface of blade corresponding to expansion tube 22 and 1 surface of blade corresponding to resistance wire 31, hydrophobic coating 40
Layered arrangement situation is different.
In the alternative of the present embodiment, 1 surface of fan blade be disposed with metal Withstand voltage layer 41, expansion tube 22,
Elastic membrane 42 and hydrophobic coating 40.
In the present embodiment, for 1 surface of blade corresponding to expansion tube 22, on the basis of blade bottom liner 2, cloth successively
Set metal Withstand voltage layer 41, expansion tube 22, elastic membrane 42 and hydrophobic coating 40.
In the alternative of the present embodiment, as shown in fig. 6,1 surface of fan blade be disposed with thermal insulation layer 43,
Resistance wire 31, thermal insulation layer 43, metal recuperation layer 44 and hydrophobic coating 40.
Thermal insulation layer is sequentially arranged on the basis of blade bottom liner 2 for 1 surface of blade corresponding to resistance wire 31
43, resistance wire 31, thermal insulation layer 43, metal recuperation layer 44 and hydrophobic coating 40.
In the present embodiment, in such a way that composite coating is anti-icing, it can play and add in all stages of anti-icing and deicing
The purpose of fast ice-melt removal, easily and effectively, and cost is relatively low.
In conclusion first, in conjunction with fan operation icing fault log, numerical weather forecast data and being based on wind turbine
The fan operation measures of effectiveness database that monitoring running state is established carries out multiple icing fault data and screens and form icing to sentence
Fixed condition.To which in known numeric value data of weather forecast, icing prediction and warning can be carried out, obtain the judgement signal that freezes.
On the basis of this, according to the monitoring signals of acceleration transducer, temperature sensor and fibre optical sensor, ice forming locations and icing are analyzed
Progress, anti-icing and deicing control module control and comprehensively utilize the hot anti-icing equipment of gas, expansion tube deicer, electrical heating deicing device
With layer deicer, carries out neatly anti-icing and deicing and control.
When ice-formation condition preliminarily forms, that is, is predicted as in the initial stage that may be frozen, gas heat is utilized
Anti-icing equipment and layer deicer reduce ice sheet formation probability.
When ice-formation condition continues to and persistently deepens, ice sheet is in the continuous development stage at this time, and ice sheet is relatively thin, in gas
Cooperation utilizes expansion tube deicer and layer deicer on the basis of hot anti-icing equipment, for 1 subregion of blade by corresponding ice
Layer is eliminated.
If ice-formation condition continues to deteriorate, accumulated ice is fast-developing or when to the heavy ice stage, on basis on last stage
On, electrical heating deicing device is enabled to the accumulated ice in particular zones and carries out comprehensive deicing, improves deicing efficiency.
Specifically, using multigroup external temperature sensor, acceleration transducer, fibre optical sensor, blade 1 is monitored respectively
Surface temperature, vibration acceleration and mechanical load, realize real-time monitoring to 1 icing condition of blade.According to each sensor
Monitoring signals predict accumulated ice degree and position based on ice sheet formation condition, take anti-icing and deicing measure in advance, to avoid
Accumulated ice is blocked up and increases deicing cost, so effectively, economically protect fan blade 1.
Corresponding to accurate icing warning information, the monitoring of sufficient sensor signal and a variety of anti-icing and de-icing devices
Multiple anti-icing and deicing means basis on, can neatly carry out anti-icing and deicing control.
It is removed in the hot anti-icing equipment of gas above-mentioned, expansion tube deicer, electrical heating deicing device, the anti-icing of layer deicer
On the basis of ice executive means, controlled in conjunction with neatly anti-icing and deicing, realize efficiently, economically anti-icing and deicing.Wherein, sensor is supervised
It surveys and numerical weather forecast is the important input signal for realizing flexible anti-icing and deicing.Fully combine icing prediction and warning, icing shape
Monitoring and multiple anti-icing and deicing mode, realization substantially increase anti-icing remove to state to the comprehensive monitoring and anti-icing and deicing of blade 1 in real time
The validity and economy of ice, have ensured the safe operation of unit.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of fan blade anti-icing and deicing system, which is characterized in that including：
The hot anti-icing equipment of gas, including condenser (8), air supply duct (16) and air inducing pipeline (19)；The air supply duct (16) with
Condenser (8) connection, for sending the hot wind exhaust of the condenser (8) to axial fan hub and engine room inside；It is described to draw
Wind pipeline (19) is set at axial fan hub, internal for the hot-air at axial fan hub to be introduced fan blade (1)；
Expansion tube deicer, including multiple expansion tubes (22)；Multiple expansion tubes (22) are laid in fan blade (1)
On, and multiple expansion tubes (22) are parallel with one another；
Electrical heating deicing device, including multiple resistance wires (31)；Multiple resistance wires (31) are laid in fan blade (1)
On, and multiple resistance wires (31) are parallel with one another；
Layer deicer, including hydrophobic coating (40)；The hydrophobic coating (40) is arranged on fan blade (1)；
And monitor controller, including anti-icing and deicing control module and with the anti-icing and deicing control module be electrically connected
Acceleration transducer, temperature sensor and fibre optical sensor.
2. fan blade anti-icing and deicing system according to claim 1, which is characterized in that set in the air supply duct (16)
There is pressure fan.
3. fan blade anti-icing and deicing system according to claim 1, which is characterized in that set in the air supply duct (16)
There is auxiliary electric heater unit.
4. fan blade anti-icing and deicing system according to claim 1, which is characterized in that the condenser (8) is connected with
Air inducing main pipeline (12)；
The air inducing main pipeline (12) is used to introduce cold air into the condenser (8).
5. fan blade anti-icing and deicing system according to claim 4, which is characterized in that the air inducing main pipeline (12) is even
It is connected to cool air inlet in cabin (14) and blade cool air inlet (15).
6. fan blade anti-icing and deicing system according to claim 4, which is characterized in that the condenser (8) is also connected with
Organic cool air inlet out of my cabin (13).
7. fan blade anti-icing and deicing system according to claim 1, which is characterized in that in each expansion tube (22)
It is equipped with turbocharging air pump.
8. fan blade anti-icing and deicing system according to claim 1, which is characterized in that the resistance wire (31) with it is described
Expansion tube (22) is arranged alternately on the length direction of fan blade (1).
9. fan blade anti-icing and deicing system according to claim 1, which is characterized in that fan blade (1) surface is successively
It is provided with metal Withstand voltage layer (41), the expansion tube (22), elastic membrane (42) and the hydrophobic coating (40).
10. fan blade anti-icing and deicing system according to claim 1, which is characterized in that fan blade (1) surface is successively
It is provided with thermal insulation layer (43), the resistance wire (31), thermal insulation layer (43), metal recuperation layer (44) and the hydrophobic painting
Layer (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721852398.7U CN207634252U (en) | 2017-12-26 | 2017-12-26 | Fan blade anti-icing and deicing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721852398.7U CN207634252U (en) | 2017-12-26 | 2017-12-26 | Fan blade anti-icing and deicing system |
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| CN207634252U true CN207634252U (en) | 2018-07-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939620A (en) * | 2017-12-26 | 2018-04-20 | 华北电力大学 | Fan blade anti-icing and deicing system |
| CN110747740A (en) * | 2019-10-23 | 2020-02-04 | 三峡大学 | Intelligent anti-icing and deicing system for stay cable and application method |
| CN111379676A (en) * | 2020-03-09 | 2020-07-07 | 中国科学院工程热物理研究所 | Gas-heated deicing device and wind energy power system |
| EP3805551A1 (en) * | 2019-10-07 | 2021-04-14 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Wt blade with multiple electrical resistors for blade heating purposes |
-
2017
- 2017-12-26 CN CN201721852398.7U patent/CN207634252U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939620A (en) * | 2017-12-26 | 2018-04-20 | 华北电力大学 | Fan blade anti-icing and deicing system |
| EP3805551A1 (en) * | 2019-10-07 | 2021-04-14 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Wt blade with multiple electrical resistors for blade heating purposes |
| WO2021069303A1 (en) * | 2019-10-07 | 2021-04-15 | Siemens Gamesa Renewable Energy Innovation & Technology S.L. | Wind turbine blade |
| US20220412320A1 (en) * | 2019-10-07 | 2022-12-29 | Siemens Gamesa Renewable Energy Innovation & Technology S.L. | Wind turbine blade |
| CN110747740A (en) * | 2019-10-23 | 2020-02-04 | 三峡大学 | Intelligent anti-icing and deicing system for stay cable and application method |
| CN110747740B (en) * | 2019-10-23 | 2021-02-02 | 三峡大学 | Intelligent anti-icing and deicing system for stay cable and application method |
| CN111379676A (en) * | 2020-03-09 | 2020-07-07 | 中国科学院工程热物理研究所 | Gas-heated deicing device and wind energy power system |
| CN111379676B (en) * | 2020-03-09 | 2021-12-07 | 中国科学院工程热物理研究所 | Gas-heated deicing device and wind energy power system |
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