CN103161689A - Anti-icing and deicing system for large wind power generation built-up blade - Google Patents
Anti-icing and deicing system for large wind power generation built-up blade Download PDFInfo
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- CN103161689A CN103161689A CN201310082885XA CN201310082885A CN103161689A CN 103161689 A CN103161689 A CN 103161689A CN 201310082885X A CN201310082885X A CN 201310082885XA CN 201310082885 A CN201310082885 A CN 201310082885A CN 103161689 A CN103161689 A CN 103161689A
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Abstract
The invention discloses an anti-icing and deicing system for a large wind power generation built-up blade. The system comprises a built-up blade body, wherein the built-up blade body is formed through that a fiber heating material layer is laid on an outer surface or a middle surface or an inner surface of a skin made of fiber base metal. A coating layer is laid on the outer surface of the skin to protect the fiber heating material and the skin fiber base metal. Two ends of the fiber heating material layer are respectively connected with a conductive electrode, and the conductive electrodes are connected with a fiber heating power supply through wires. The skin outer surface and the skin middle layer or the fiber heating material layer of the inner surface of the skin are all provided with temperature sensors, and outputs of the temperature sensors are connected with a temperature controller through signal wires. By the system, anti-icing and deicing of the large wind power generation built-up blade under the environment of low-temperature high-humidity and freezing can be achieved, and the problems that generating efficiency is reduced due to icing and electricity generation loss due to stopping are avoided. The anti-icing and deicing system for the large wind power generation built-up blade has important economic and social benefits.
Description
Technical field
The present invention relates to a kind of under low temperature and high relative humidity freezes environment the anti-icing system, particularly a kind of large-scale wind generating combined blade anti-icing system of large-scale wind generating blade.
Background technique
The in short supply of traditional energy causes people to the generally worry of the exhaustion of non-renewable energy resources in the world, becomes focus and the inevitable developing direction of World Focusing as the development and utilization of the wind energy of renewable energy sources.As the effective way that improves wind energy utilization and power benefit, the single-machine capacity of wind-driven generator is constantly to large scale development.In addition, in China, the application of wind-driven generator is not only in the more suitable area use of weather, and is also more and more in the icing regional use of low temperature and high relative humidity.
Under low temperature and high relative humidity freezes environment; the air dynamic behaviour of the blade of wind-driven generator is subject to the impact of surperficial icing; and the quality that the existence of the icing ice sheet on wind power generation blade can increase blade makes the load of blade increase; and then the lift of change aerofoil; the aerodynamic performance of blade obviously descends; affect to a great extent wind power generation efficiency; icing further develops under the continuous low temperature super-humid conditions; even the stopping accident of wind-driven generator be can cause, tremendous economic loss and the wasting of resources caused.Research and development to the blade of large-scale wind driven generator carry out anti-icing and deicing economy, applicable and effective method is significant.
Existing blade deicing technology comprises that mainly motion judder deicing, hot air circulate deicing, hot air circulate add motion judder, microwave heating, and method such as spraying deicer etc.
The publication number of Denmark Vestas wind-power generating system Co., Ltd application is 101821500A's " being used for method, wind turbine and application thereof to the blade deicing of wind turbine " patent, belongs to the method for motion judder deicing.The described method of this patent is, becomes the slurry motor by blade and blade is formed first accelerate and become trembling of slowing down after slurry after wind-driven generator is shut down, and shakes off icing on blade.The obvious shortcoming of the method is, because root of blade rigidity large vibration amplitude is very little, deicing DeGrain to root, and will cause the greater impact effect to mechanical system and the wind-power electricity generation tower structure of whole wind-driven generator by the deicing of trembling, can reduce the working life of related components, the safety and reliability of whole wind-power generating system is caused larger negative effect.
The publication number of GE application is the method that 1727673 patent belongs to the hot air circulate deicing.This patent discloses " being used for removing the method and apparatus of the ice on aerofoil profile or rotor blade ", the method is transported to hot air in circulation canal in blade by blower, flow in the circulation canal of hot air between blade root and blade tip, by heat exchange, the blade covering is heated.The method need to be set up the hot air circulate passage in the blade cavity, increased difficulty and the manufacture cost on the art of vane, and the existence of circulation canal has also inevitably increased the total quality of blade, and then affects generating efficiency.In addition, the method also need to be set up air heating system in the cabin of existing wind-driven generator, increase cost and energy consumption.Other shortcomings of the method also comprise, for the long high-power wind-driven generator of blade, when the amount of freezing is larger, because the blade skin material is generally glass fibre by the glass fibre reinforced plastic material of ester moulding, poor conductor for heat, reach the purpose that the icing that makes the blade skin-surface melts, must be first by the whole blade covering of blade interior cavity heating, the heat that absorbs at the situation lower blade of heat supply deficiency is difficult to reach the requirement of ice-melt.Make the blade deicing, must make blade covering bulk temperature reach above zero, power consumption is large, if improve the hot air temperature that adds of inside cavity, power consumption can further increase, and even might cause the problem of blade burning, and Security is low.Moreover, due to the tip segment narrow space, because hot air is difficult to arrive, the icing of the tip segment that the most easily freezes is difficult to effective removal.
Authorizing patent of invention (notice of authorization CN102003353B) to disclose a kind of deicing method, belong to the method that hot air circulate adds motion judder, is the comprehensive of above two class methods.This patent first utilizes air heating system that hot air is inputted in circulation canal in blade, make hot air and blade covering carry out heat exchange, covering after intensification is its surperficial icing heat supply, make the heat absorption of icing ice sheet melt, then use pitch-controlled system and yaw system first to accelerate rear deceleration to blade, blade produces flutter and shakes off ice sheet.The present invention adopts and first heats the method for flutter again, need to set up air heating system in the generator cabin of existing wind-driven generator, and to set up the hot air circulate passage in blade, complex process, increase cost, and set up the hot air circulate passage and also can increase leaf weight, affect generating efficiency.A prior drawback is, the method forms by pitch-controlled system and yaw system and first accelerates the motion of slowing down afterwards, and blade produces flutter and also shakes off ice sheet.Thisly first accelerate the athletic meeting of slowing down afterwards to the impact that mechanical part and the tower barrel structure of generator forms strong row, mechanical deterioration is threatened.
Application number is that 201110394097.5 the disclosed method of patent of invention " a kind of large fan blade deicing system and method thereof " also adopts induced draft fan and heater, use induced draft fan that cool air is extracted out, hot air is circulating-heating blade covering in blade, reaches away the effect of blade covering top layer ice sheet.The shortcoming of the method and above mandate patent of invention (notice of authorization CN102003353B) are similar.
The method of all hot air circulate heating all also has a common shortcoming, and its circulating line is difficult to cover whole blade, adds that blade material is the poor conductor of heat, and some position is difficult to reach the deicing effect.
Application number is the mode that 20100199260.8 patent of invention " a kind of wind power generating set and blade deicing system thereof " adopts microwave heating and local exciting.By the microwave heating system that is arranged at blade exterior, ice sheet is heated, then use exciting device to carry out local exciting to blade and remove ice sheet.This method need to arrange transportable microwave launcher outside blade, environmental radiation is large, and is large to harm.And transportable exciting device need to be set, and implement difficulty large, cost is high.Because the boundary dimension of the blade of different model is different, the versatility of mobile microwave launcher is poor.
The new patent (notice of authorization CN 202326036U) " a kind of blade de-icing device and wind-driven generator " of licensing of Sany Electricity Limited Liability Company sprays the method for ice melting agent to the blade deicing by ice melting agent pump, delivery pipe and nozzle to blade.This method also need to arrange in addition ice melting agent and carry and ejecting system outside wind-driven generator tower, cost is high, and deicer also can cause certain environmetal impact.
Summary of the invention
technical problem to be solved by this invention is, not enough for prior art, a kind of deicing and anti-icing reliable for effect is provided, cost is low, simple in structure, anti-icing and the deicing system of the large-scale wind generating combined blade that applicability is strong, the present invention need to not arrange hot air circulate pipeline and cool air extraction pipeline and equipment in addition in blade interior, avoid accelerating and slow down to carry out flutter and tremble the infringement that ice causes the blower fan mechanical system to becoming slurry system and yaw system, avoid using any extras heating and exciting in blade exterior, avoid using any ice melting agent and corresponding pipe-line equipment and injection apparatus, and, the present invention have fiber heating material layer used have with leaf fiber mother metal layer compatibility good, technique is simple, change to leaf quality is very little, do not change profile and the aerodynamic characteristic of blade, flexible arrangement fiber heating material as required, homogeneous heating, thermal conversion efficiency height and the energy-conservation characteristics of heating material.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: on the leaf production mould in the coating mould after gel coat, directly first lay fiber heating material layer, re-lay the fiber base material layer of making the blade covering, make fiber heating material layer be positioned at the outermost surface of covering fiber base material layer; Perhaps on the leaf production mould in the coating mould after gel coat, first lay the fiber base material layer of making the blade covering, then lay fiber heating material layer, lay at last the fiber base material layer of blade covering, make fiber heating material layer be positioned at the mesosphere of covering fiber base material layer as interlayer; Perhaps in the coating mould after gel coat, first lay the fiber base material layer of making the blade covering on the leaf production mould, lay fiber heating material layer at the covering internal surface more at last, make fiber heating material layer be positioned at the internal surface of covering fiber base material layer; Arrange temperature transducer in blade covering outer surface and fiber heating material layer, be connected with conductive electrode respectively with the two ends of conducting resinl with fiber heating material layer, conductive electrode is connected with wire, with the power line of temperature transducer and signaling line, the wire that is connected with the fiber zone of heating cause cause blade root after blade covering internal surface after, fiber heating material layer and blade covering fiber base material layer are carried out the vacuum resin form; Perhaps at temperature transducer, fiber heating material layer together with blade covering fiber base material layer after form, the power line of temperature transducer and signaling line, the wire that is connected with the fiber zone of heating are caused root of blade along the blade inwall; The wire that will be connected with fiber heating material layer is connected with the fiber heating power supply, the power line of temperature transducer is connected with its power supply, the output signal line of temperature transducer is connected with temperature controller, temperature controller is connected with the fiber heating power supply of giving the power supply of fiber heating material layer, controls the output power of fiber heating power supply; Adopt fan paddle-changing system or the non-firm power of yaw system or exerting oneself as electrical source of power of blower fan itself, the fiber heating power supply contacts by the metal slip ring, with the metal slip ring and is connected with electrical source of power at the carbon brush of its surface sliding and obtains electric power; Temperature controller and fiber heating power supply all are fixed on the fixed support that is connected with the blade root flange, perhaps are fixed on axial fan hub inside.
Described fiber heating material comprises all conductive fiber materials such as continuous carbon cellulose fiber, and based on made difform of conductive fiber material but have the material of heating function, as carbon crystalline substance etc.The continuous carbon fiber sheet of preferential employing.
The making method of the large-scale wind generating combined blade anti-icing system of fibre-bearing heating material layer is:
In the coating mould after gel coat, directly first lay fiber heating material layer on the leaf production mould, re-lay the fiber base material layer of making the blade covering, make fiber heating material layer be positioned at the outermost surface of covering fiber base material layer; Perhaps on the leaf production mould in the coating mould after gel coat, first lay the fiber base material layer of making the blade covering, re-lay fiber heating material layer, re-lay the fiber base material layer of blade covering, make fiber heating material layer be positioned at the mesosphere of covering fiber base material layer as interlayer; Or, in the coating mould after gel coat, first lay the fiber base material layer of making the blade covering, then lay fiber heating material layer at the covering internal surface on the leaf production mould, make fiber heating material layer be positioned at the internal surface of covering fiber base material.Preferably first lay the method that fiber heating material layer re-lays blade covering fiber base material layer, make fiber heating material layer be positioned at the outermost surface of blade covering, the heat that the fiber heating material bed of material produces directly acts on the surface of blade, and heat utilization ratio is high, deicing and anti-icing effective.arrange temperature transducer in skin-surface and fiber heating material layer, be connected with conductive electrode respectively with the two ends of conducting resinl with fiber heating material layer, conductive electrode is connected with wire again, power line and signaling line with temperature transducer, the wire that is connected with the fiber zone of heating causes blade root after causing blade covering internal surface, then, fiber heating material layer and blade covering fiber base material layer are carried out the vacuum resin form, the power line of temperature transducer and signaling line and the wire that is connected with the fiber zone of heating also can be at temperature transducers, fiber heating material layer is together with blade covering fiber base material layer after form, cause root of blade along the blade inwall.The wire that is connected with fiber heating material layer is connected with the fiber heating power supply again, and the power line of temperature transducer is connected with its power supply, and the output signal line of temperature transducer is connected with temperature controller.Temperature controller is connected with the fiber heating power supply of giving the power supply of fiber heating material layer, controls the output power of fiber heating power supply.Adopt fan paddle-changing system or the non-firm power of yaw system or exerting oneself as electrical source of power of blower fan itself, the fiber heating power supply contacts by the metal slip ring, with the metal slip ring and is connected with electrical source of power at the carbon brush of its surface sliding and obtains electric power.Temperature controller and fiber heating power supply all are fixed on the fixed support that is connected with the blade root flange, perhaps are fixed on axial fan hub inside.
Of the present invention anti-icing as follows with ice detachment: at first, the fiber heating power supply is powered to connected fiber heating material layer, and the heating of fiber heating material layer also directly given the heating of blade covering; Secondly, utilize the temperature of the temperature sensor measurement blade skin-surface and the fiber zone of heating that are embedded into blade, and with temperature signal input temp controller; Again, temperature controller is according to the measurement temperature of blade skin-surface and fiber zone of heating, send control signal, control the output power of fiber heating power supply, and then the heating power of fiber heating material layer is controlled, keep blade skin-surface temperature above freezing, prevent that the blade skin-surface from freezing.In the situation that blade surface freezes, first by fiber heating material layer heating power heated the blade covering, covering directly heats its surperficial icing and icing is melted, after the skin-surface ice-melt is completed, guarantee that by above method blade skin-surface temperature above freezing, prevents the generation again of freezing again.Thereby realize the normal operation generating under low temperature and high relative humidity freezes environment of large-scale wind generating equipment.
compared with prior art, the beneficial effect that the present invention has is: the present invention has realized the anti-icing and deicing of the large-scale wind generating blade under low temperature and high relative humidity freezes environment, avoid because of the power generation loss that the icing generating efficiency that causes of blade surface reduces and the wind-driven generator shutdown produces, the present invention has important economic and social benefit, the fiber heating material quality that the present invention adopts is very light, lays fiber heating material layer very little to former vaned quality influence in original leaf fiber mother metal layer, fiber heating material layer directly is layed in the position of close outer surface in blade covering outer surface or fiber base material layer, or the internal surface position of fiber base material layer, preferably be layed in the position of close outer surface in blade covering outer surface or fiber base material layer, the heat that the fiber heating material produces directly acts on the blade skin-surface, do not need by blade integral body is from inside to outside heated to reach, blade surface to be heated up and ice-melt and anti-icing purpose, and be the poor conductor of heat after leaf fiber mother metal form, also can play the effect that prevents dissipation of heat, heat utilization ratio of the present invention is high, the fiber base material layer of fiber heating material layer and large-scale wind generating blade (being mainly glass fibre at present) has good compatibility, moulding together with former blade mother metal fibrous material layer, have and do not change former vaned geometric shape, do not affect the advantage of former vaned aerodynamic characteristic, electric conversion efficiency as the carbon fibre material of one of representative of fiber heating material is very high, generally higher than 95%, almost can all convert electric energy to heat energy, and the present invention has significant energy-saving effect, fiber heating material layer carries out homogeneous heating to blade surface, the excessive and local excess Temperature of the temperature gradient of having avoided traditional resistor silk mode of heating to cause and cause the accelerated deterioration of wood property of leaf fiber mother metal and the negative effects such as shortening in working life that cause thus, the present invention need to not set up air circulation duct in the blade cavity, need not exhausting and blast apparatus yet, does not need original blade design and construction process are carried out any change, and method is easy, has obvious economic benefit, fiber heating material used can design as required, covers blade integral and part area, and the fiber heating material can also be cut into strip and carry out flexible arrangement, the present invention controls by optimal design and temperature to the resistance of fiber heating material layer the thoroughly anti-icing and deicing of reasonable layout that realizes blade covering temperature, avoided all methods of trembling due to the infringement of blade being accelerated slow down again blower fan mechanical system and tower cylinder being caused, do not need to set up deicer transfer pump and delivery pipe, good economy performance in addition, is not used deicer, has avoided the adverse effect of deicer to environment, effectively guarantee the continuous operation of blower fan under low temperature and high relative humidity freezes environment, had important economic and social benefit.
Description of drawings
Fig. 1 is the sectional view of one embodiment of the invention large-scale wind generating combined blade;
Fig. 2 is the laying generalized section that one embodiment of the invention fiber heating material layer is positioned at the covering outer surface;
Fig. 3 is the laying generalized section that one embodiment of the invention fiber heating material layer is positioned at leaf fiber mother metal layer mesosphere;
Fig. 4 is the laying generalized section that one embodiment of the invention fiber heating material layer is positioned at leaf fiber mother metal layer internal surface;
Fig. 5 blade and blade root side view and temperature controller and fiber heating power supply mounting point schematic diagram
The wiring schematic diagram of Fig. 6 metal slip ring, carbon brush and electrical source of power and fiber heating power supply
Fig. 7 is that one embodiment of the invention is based on the connection diagram of combined blade fiber heating material, electrode, fiber heating power supply and the controller of fiber heating material;
Fig. 8 is one embodiment of the invention fiber heating material layer continuous laying schematic diagram;
Fig. 9 is the banded schematic diagram of laying of one embodiment of the invention ribbon-like fibre heating material layer subregion;
Figure 10 is one embodiment of the invention temperature control flow figure;
Figure 11 is that one embodiment of the invention is based on the combined blade model planimetric map of fiber heating material;
Figure 12 is that one embodiment of the invention is based on the combined blade model sectional view of fiber heating material;
Figure 13 is the measured result schematic diagram that one embodiment of the invention blade rises from subzero 10 degree by fiber heating material heating leaf temperature under low temperature environment;
Figure 14 is one embodiment of the invention based on the combined blade of fiber heating material under low temperature freezes environment, the measured result schematic diagram that rises by fiber heating material heating blade deicing processes temperature;
Wherein:
1: the fiber base material layer; 2: fiber heating material layer; 3: conductive electrode; 4: wire; 5: the fiber heating power supply; 6: temperature transducer; 7: temperature controller; 8: covering; 9: the beam cap; 10: web; 11: the blade inner chamber; 12: coating; 13: blade tip; 14: blade root; 15: blade inlet edge; 16: trailing edge; The 17:PVC grid; 18: epoxy backbone; 19: the blade root fastenings flange; 20: the blade connecting bolt; 21: the temperature sensor signal line; 22 control signal lines; 23: fixed support; 24: insulating material; 25: the metal hollow coupling shaft; 26: keyway; 27: blower fan main shaft; 28: the metal slip ring; 29: carbon brush; 30: electrical source of power.
Embodiment
As Fig. 1-shown in Figure 9, one embodiment of the invention comprises the combined blade body, and described combined blade body is provided with the covering 8 of being made by blade covering fiber base material layer 1, is equipped with fiber heating material layer 2 on described covering 8; Perhaps described fiber heating material layer 2 is located at the mesosphere of described fiber base material layer 1 as interlayer; Perhaps described fiber heating material layer 2 is located at the internal surface of described fiber base material layer 1; Be equipped with coating 12 on described covering 8; Described fiber heating material layer 2 two ends are connected with respectively a conductive electrode 3, and conductive electrode 3 is connected with fiber heating power supply 5 by wire 4; The fibrous material layer 2 of described covering 8 surfaces and described covering 8 is provided with temperature transducer 6, and described temperature transducer 6 is connected with temperature controller 7.Temperature controller 7 is connected with the fiber heating power supply 5 of giving the power supply of fiber heating material, controls the output power of fiber heating power supply 5; Fiber heating power supply 5 is connected with electrical source of power 30 by metal slip ring 28, with metal slip ring 28 contact and at the carbon brush 29 of its surface sliding and obtains electric power, can adopt the non-firm power of fan paddle-changing system or yaw system or exerting oneself as electrical source of power 30 of blower fan itself; Temperature controller 7 and fiber heating power supply 5 all are fixed on the fixed support that is connected with the blade root flange, perhaps are fixed on axial fan hub inside.
Figure 9 shows that one embodiment of the invention temperature control flow figure.The output signal of the temperature transducer 6 that the fibrous material layer 2 of described covering 8 surfaces and described covering 8 is provided with directly inputs to temperature controller 7.During lower than the setup control temperature range, fiber heating power supply 5 keeps when the blade surface temperature reaches the temperature upper control limits of setting, stopping the energising heating to fiber zone of heating energising heating when the blade surface temperature.Because heat radiation drops to the setting temperature control range when following, begin again the energising heating when leaf temperature.
Figure 10 shows that the size planimetric map of an embodiment blade, wherein arranged the continuous carbon fibre web of material.Figure 11 shows that the leaf model generalized section of carbon fiber-containing heating material, the covering up and down is two-layer is glass fibre three-dimensional cloth, thickness in monolayer 0.54mm, and the middle hard PVC grid that adopts contains epoxy backbone.The carbon fiber heating web of material is laid along model leaf length direction rift grain, and electrode is done with copper sheet in two ends, and the leaf tip potential electrode is derived by wire, and wire is laid in the hard PVC layer and causes root of blade.Respectively model leaf is positioned in the low temperature and high relative humidity environment, under blade surface freezes and do not freeze two kinds of conditions, passes through respectively the fiber heating power supply to the blade pass electric heating, record the change procedure of blade surface temperature.
Figure 12 is the measured result that the described blade of an embodiment of the present invention rises from subzero 10 degree by fiber heating material heating leaf temperature under low temperature environment.Figure 13 is that the described band carbon fibers of an embodiment of the present invention blade is under low temperature freezes environment, by the measured result of fiber heating material heating blade deicing processes temperature rising.Can find out the rising that can realize the blade surface temperature by the method for the invention from the temperature variation of blade surface, also can realize the rising of the ice-melt rear blade surface temperature of blade surface icing.
The know-why of the anti-icing and de-icing method of large scale wind blade of the present invention: lay fiber heating material and temperature transducer in blade, when temperature sensor measurement blade surface temperature during near freezing point or lower than the setup control temperature range, send control command by temperature controller, the fiber heating material is switched on, the fiber heating material directly heats blade, make leaf temperature remain in non-icing temperature range or setting temperature control range, temperature controlling range is preferably got 3 degree above freezing to 10 degree.When blade is in halted state owing to freezing, at first by ice-melt is carried out in fiber heating material layer energising heating, then leaf temperature is controlled in the scope of not freezing, guarantees that blade runs well under low temperature and high relative humidity freezes environment, the wind-driven generator normal power generation.
Working process and the ice detachment of system of the present invention are as follows:
1, lay in advance fiber heating material layer or directly lay fiber heating material layer at outmost surface or the internal surface of blade in the inner close outer surface of its fiber base material before the covering perfusion resin of blade, and at the pre-buried temperature transducer of covering outer surface, the priming by vacuum maintenance moulding together with leaf fiber mother metal layer of fiber heating material layer;
2, the two ends with fiber heating material layer are connected and switch on the fiber heating power supply, and the heating of fiber heating material layer also directly given the heating of blade covering;
3, utilize temperature sensor measurement blade surface temperature, and with measurement signal input temp controller, temperature controller is measured temperature according to blade, sends control signal, control fiber heating power supply output power, and then the heating power of fiber heating material layer is controlled;
4, the heat that produces by the energising to fiber heating material layer heats blade, keeps leaf temperature in non-icing scope, prevents that blade from freezing, and keeps blade to show that temperature is within certain temperature range.In the situation that blade freezes, first carry out ice-melt by heating that the fiber heating material layer in blade is switched on, and then utilize said method anti-icing.
Claims (4)
1. the anti-icing and deicing system of a large-scale wind generating combined blade, comprise the combined blade body, described combined blade body is provided with the covering (8) of being made by fiber base material layer (1), it is characterized in that, described covering (8) outer surface, mesosphere or internal surface are equipped with fiber heating material layer (2); Be equipped with coating (12) on described covering (8); Described fiber heating material layer (2) two ends are connected with respectively a conductive electrode (3), and described conductive electrode (3) is connected with fiber heating power supply (5) by wire (4); Described covering (8) outer surface and described fiber heating material layer (2) are provided with temperature transducer (6), and described temperature transducer (6) is connected with temperature controller (7) by signaling line.
2. the anti-icing and deicing system of the large-scale wind generating combined blade based on the fiber heating material according to claim 1, it is characterized in that, the power line of described temperature transducer (6), output signal line, the wire of the fiber heating material bed of material (2) and the described fiber heating material bed of material (2), cause blade root after fiber base material (1) one moulding, the perhaps power line of described temperature transducer (6), output signal line, the wire of the fiber heating material bed of material (2) causes the blade root position along the blade internal surface after the described fiber heating material bed of material (2) and (1) one moulding of blade covering fiber base material.
3. the anti-icing and deicing system of the large-scale wind generating combined blade based on the fiber heating material according to claim 1, is characterized in that, described fiber heating material layer (2) adopts carbon fibre cloth and the brilliant material of carbon.
4. the anti-icing making method with deicing system of the described large-scale wind generating combined blade of claim 1, is characterized in that, the method is:
In the coating mould after gel coat, directly first lay fiber heating material layer (2) on the leaf production mould, re-lay the fiber base material layer (1) of making the blade covering, make fiber heating material layer (2) be positioned at the outermost surface of covering fiber base material layer (1); Perhaps on the leaf production mould in the coating mould after gel coat, first lay the fiber base material layer (1) of making the blade covering, then lay fiber heating material layer (2), lay at last the fiber base material layer (1) of blade covering, make fiber heating material layer (2) be positioned at the mesosphere of covering fiber base material layer (1) as interlayer; Perhaps on the leaf production mould in the coating mould after gel coat, first lay the fiber base material layer (1) of making the blade covering, lay fiber heating material layer (2) at the covering internal surface more at last, make fiber heating material layer (2) be positioned at the internal surface of covering fiber base material layer (1); The wire (4) that will be connected with fiber heating material layer (2) is connected with fiber heating power supply (5), the power line of the upper temperature transducer (6) of fixing of fiber heating material layer (2) is connected with its power supply, the output signal line of temperature transducer (6) is connected with temperature controller (7), temperature controller (7) is connected with the fiber heating power supply (5) of giving the power supply of fiber heating material, controls the output power of fiber heating power supply (5); Adopt fan paddle-changing system or the non-firm power of yaw system or exerting oneself as electrical source of power (30) of blower fan itself, fiber heating power supply (5) contacts by metal slip ring (28), with metal slip ring (28) and is connected in carbon brush (29), the electrical source of power (30) of its surface sliding and obtains electric power; Described carbon brush (29) is connected with electrical source of power (30); Temperature controller (7) and fiber heating power supply (5) all are fixed on the fixed support that is connected with the blade root flange, perhaps are fixed on axial fan hub inside.
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