External anti-freezing internal heating flow guide cover and self-anti-freezing wind driven generator composed of external anti-freezing internal heating flow guide cover

Abstract

The utility model discloses an external anti-freezing internal heating fairing and a self-anti-freezing wind driven generator composed of the fairing, and aims to solve the problem that the fairing and blades of the conventional wind driven generator are seriously subjected to surface freezing under the influence of low temperature and have no corresponding effective treatment mode. An anti-freezing layer is arranged on the outer wall of the flow guide cover in the outer anti-freezing inner heating flow guide cover, an inner attaching heating layer is arranged on the inner wall of the flow guide cover, each hole body corresponds to a heating sleeve, and each heating sleeve is connected with the inner attaching heating layer. A flow guide cover and a cabin shell in the self-anti-freezing wind driven generator are arranged at an interval, a variable pitch mechanism, a motor assembly and a control cabinet are all arranged in the cabin shell, the front portion of the variable pitch mechanism is located in the flow guide cover, three blades are evenly distributed on the variable pitch mechanism, each blade is provided with a heating penetrating channel, each blade is connected with the variable pitch mechanism, and the variable pitch mechanism is connected with the motor assembly. Each blade is arranged in the heating penetrating channel in a penetrating mode, the inner attaching heating layer is electrically connected with the motor assembly and the control cabinet, and each heating sleeve is electrically connected with the motor assembly and the control cabinet.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wind power generation technology, concretely relates to a kind of outer anti-freezing inner heating fairing and the self anti-freezing wind driven generator of the fairing of its composition. BACKGROUND

[0002] When wind driven generator operates in cold region, it will face multiple challenges, which mainly come from extreme weather conditions and adaptability of the equipment. In extremely low temperature conditions in cold region, air temperature in winter can drop to several degrees below zero, which puts high requirements on mechanical components, electrical systems and lubricants of wind driven generator. Long-time operation in low temperature can damage components in wind driven generator set, especially the blades. There is often snow in winter in cold region, and parts such as blades and fairing are easily covered with ice and snow, which not only increases the load of the equipment, but also can affect the efficiency of wind energy capture. When the blades are iced, their aerodynamic performance will be affected, which can lead to a decrease in power generation. At the same time, the iced blades may vibrate when rotating due to imbalance, causing damage to the equipment.

[0003] In summary, when parts such as blades and fairing are covered with ice and snow under extreme weather conditions and harsh environment, manual snow removal is difficult and has great safety risks, and it is not easy to implement. There is no stable way to deal with it in time. UTILITY MODEL CONTENT

[0004] To solve the problems mentioned in the background art, the purpose of the utility model is to provide an outer anti-freezing inner heating fairing and a self anti-freezing wind driven generator composed of the fairing.

[0005] An outer anti-freezing inner heating fairing, comprising a fairing, an anti-freezing layer, an inner application heating layer and a plurality of heating sleeves, the outer wall of the fairing is provided with the anti-freezing layer, the fairing is processed with a plurality of through holes along its thickness direction, the inner wall of the fairing is provided with the inner application heating layer, the inner application heating layer is processed with a hole body corresponding to the through hole along its thickness direction, each hole body is provided with one heating sleeve, each heating sleeve is a flexible heating sleeve, one end of each heating sleeve close to the inner application heating layer is connected with the inner application heating layer, and the inside of each heating sleeve is connected with the through hole through the corresponding hole body to form a heating through channel.

[0006] As a preferred scheme, the outer wall surface of the anti-freezing layer is an arc surface or a net format arc surface. When the outer wall surface of the anti-freezing layer is a net format arc surface, the anti-freezing layer comprises a bottom layer and an outer layer, the bottom layer and the outer layer are next to each other and integrated, the inner wall of the bottom layer is fixedly connected with the outer wall of the fairing, the outer wall surface of the outer layer is the net format arc surface, and the net format arc surface is formed by processing a plurality of pits on the outer wall surface of the outer layer.

[0007] As a preferred solution: the anti-freezing layer is a double-layer composite microcapsule layer, the double-layer composite microcapsule layer comprises a cementing agent and a plurality of double-layer composite capsules, the plurality of double-layer composite capsules are in the cementing agent, each double-layer composite capsule comprises an outer capsule shell, an inner capsule shell, an outer capsule core and an inner capsule core, the outer capsule shell and the inner capsule shell are both capsule-shaped shells, the outer capsule shell and the inner capsule shell are coaxially arranged in sequence from outside to inside, the outer capsule core is arranged between the inner wall of the outer capsule shell and the outer wall of the inner capsule shell, and the inner capsule core is arranged in the inner capsule shell.

[0008] As a preferred solution: the inner-pasted heating layer is a flexible heating layer, the shape of the inner-pasted heating layer is matched with the shape of the inner wall of the flow guide cover, and the inner-pasted heating layer comprises an inner flexible heat-conducting outer skin and an inner heating chip.

[0009] As a preferred solution: the heating sleeve is a corrugated sleeve body, and the heating sleeve comprises an outer flexible heat-conducting outer skin and a corrugated heating sleeve.

[0010] As a preferred solution: the number of the heating sleeves is three.

[0011] A self-anti-freezing wind turbine is composed of the above-mentioned outer anti-freezing and inner heating flow guide cover, comprising the outer anti-freezing and inner heating flow guide cover, a variable pitch mechanism, a nacelle shell, a motor assembly, a control cabinet and three blades.

[0012] The outer anti-freezing and inner heating flow guide cover comprises a flow guide cover, an anti-freezing layer, an inner-pasted heating layer and a plurality of heating sleeves, the anti-freezing layer is arranged on the outer wall of the flow guide cover, a plurality of through holes are processed in the thickness direction of the flow guide cover, the inner-pasted heating layer is arranged on the inner wall of the flow guide cover, a plurality of hole bodies that are in one-to-one correspondence with the through holes are processed in the thickness direction of the inner-pasted heating layer, one heating sleeve is arranged corresponding to each hole body, each heating sleeve is a flexible heating sleeve, one end of each heating sleeve close to the inner-pasted heating layer is connected with the inner-pasted heating layer, and the inside of each heating sleeve is connected with the through hole through the corresponding hole body to form a heating through channel.

[0013] The flow guide cover is spaced apart from the nacelle shell, the variable pitch mechanism, the motor assembly and the control cabinet are arranged in the nacelle shell, the front part of the variable pitch mechanism is in the flow guide cover, the three blades are uniformly distributed on the variable pitch mechanism, one heating through channel is arranged corresponding to each blade, one end of each blade is connected with the variable pitch mechanism, the other end of each blade is arranged in the corresponding heating through channel, the inner-pasted heating layer is electrically connected with the motor assembly and the control cabinet, and each heating sleeve is electrically connected with the motor assembly and the control cabinet.

[0014] As a preferred solution: a temperature sensor matched with the outer anti-freezing and inner heating flow guide cover is arranged at the front end of the variable pitch mechanism, and the temperature sensor is electrically connected with the control cabinet.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1、 the utility model discloses an outer anti -icing inner heating fairing is through the fairing, anti -icing layer, inner pasting heating layer and a plurality of heating sleeve mutual cooperation and form the multilayer composite cover body structure form, retain the basic use performance of the existing fairing, also improve the double use performance of anti -icing, self -melting ice and snow from the outer wall and the inner wall of fairing, form the anti -icing, anti -icing structure form of outer anti -icing inner heating, benefit to reduce the difficulty of ice and snow, reduce the influence of low temperature and ice and snow to fairing, thereby benefit to improve the protection effect of other components connected with fairing.

[0017] 2、 the utility model discloses a self -antifreezing wind driven generator through the outer anti -icing inner heating fairing, variable -pitch mechanism, cabin shell, motor assembly, control cabinet and three blades mutual cooperation and realize the double use performance of anti -icing, self -melting ice and snow of the outer wall and the inner wall of fairing, make the top structure of the most easy icing of self -antifreezing wind driven generator have the anti -icing structure form of outer anti -icing inner heating, reduce artificial or other external intervention ice and snow mode, increase the self -antifreezing use function of self -antifreezing wind driven generator, can popularize and spread. BRIEF DESCRIPTION OF DRAWINGS

[0018] For easy description, the utility model is described in detail by the following specific embodiment and drawing.

[0019] Figure 1 It is the side view structural schematic drawing of the connecting relationship between pasting heating layer and a plurality of heating sleeves;

[0020] Figure 2 It is the main view cross -sectional structure schematic drawing of outer anti -icing inner heating fairing, and because the position relationship of uniform distribution of a plurality of heating sleeves is shown only one heating sleeve;

[0021] Figure 3 It is the three -dimensional structure schematic drawing of pasting heating layer in one structure form;

[0022] Figure 4 It is the three -dimensional structure schematic drawing of pasting heating layer in another structure form;

[0023] Figure 5 It is the three -dimensional structure schematic drawing of heating sleeve;

[0024] Figure 6 It is Figure 2 It is the enlarged structure schematic drawing of A in the middle;

[0025] Figure 7The anti-freezing layer is a net-shaped arc surface, and the cross-sectional structure is shown in the drawing.

[0026] Figure 8 The anti-freezing layer is a net-shaped arc surface, and the cross-sectional structure is shown in the drawing.

[0027] Figure 9 The anti-freezing layer is a net-shaped arc surface, and the cross-sectional structure is shown in the drawing.

[0028] Figure 10 The anti-freezing layer is a net-shaped arc surface, and the cross-sectional structure is shown in the drawing.

[0029] 1-duct cover; 2-anti-freezing layer; 2-1-bottom layer; 2-2-outer layer; 2-3-dimple; 3-penetrating hole; 4-inner paste heating layer; 4-1-inner flexible heat-conducting outer skin; 4-2-inner heating chip; 5-heating sleeve; 5-1-outer flexible heat-conducting outer skin; 5-2-corrugated heating sleeve; 6-hole body; 7-pitch changing mechanism; 8-nacelle shell; 9-motor assembly; 10-control cabinet; 11-blade; 12-temperature sensor; 13-tower; 14-double-layer composite capsule; 14-1-outer layer capsule shell; 14-2-inner layer capsule shell; 14-3-outer capsule core body; 14-4-inner capsule core body. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the present application more clear, the following will describe the present application through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the present application. The structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the present specification, so that people skilled in the art can understand and read, and are not intended to limit the conditions that can be implemented by the present application, and therefore do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0031] It should also be noted that, in order to avoid obscuring the present application due to unnecessary details, only structures and / or processing steps closely related to the scheme according to the present application are shown in the drawings, and other details not closely related to the present application are omitted.

[0032] Specific implementation method one: combined with Figure 1、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The present embodiment is described, the outer anti-freezing inner heating fairing in the present embodiment includes fairing 1, anti-freezing layer 2, inner pasting heating layer 4 and several heating sleeves 5, the outer wall of fairing 1 is provided with anti-freezing layer 2, fairing 1 is processed with several through holes 3 along its thickness direction, the inner wall of fairing 1 is provided with inner pasting heating layer 4, inner pasting heating layer 4 is processed with hole body 6 corresponding to through hole 3 along its thickness direction, each hole body 6 is provided with one heating sleeve 5, each heating sleeve 5 is flexible heating sleeve, one end of each heating sleeve 5 near inner pasting heating layer 4 is connected with inner pasting heating layer 4, the inside of each heating sleeve 5 is connected with through hole 3 through its corresponding hole body 6 to form a heating through channel.

[0033] The fairing 1 in the present embodiment is the existing fairing, and the structure form and working principle thereof are consistent with the structure form and working principle of the existing fairing.

[0034] The outer shape of the anti-freezing layer 2 in the present embodiment is matched with the outer wall shape of the fairing 1, the anti-freezing layer 2 is a coating or a pasting layer made of anti-freezing material, can resist the invasion of low temperature, and can comprehensively protect the fairing 1 from the outer wall position of the fairing 1, which is conducive to reducing the freezing degree of the outer part of the fairing 1 and improving the durability of the fairing 1 in low temperature environment.

[0035] The outer shape of the inner pasting heating layer 4 in the present embodiment is matched with the inner wall shape of the fairing 1, the inner pasting heating layer 4 can realize heating treatment of the inner wall of the fairing 1, the inner pasting heating layer 4 and the several heating sleeves 5 can realize simultaneous protection and heating effect of the fairing 1 and the blade 11, and the heating power of the inner pasting heating layer 4 and the several heating sleeves 5 comes from the electric energy generated by the self-freezing wind power generator, and the heating and closing process is started by the existing design electric control program.

[0036] Specific embodiment two: the present embodiment is a further limitation of the specific embodiment one, the configuration form of the anti-freezing layer 2 is two, one is the arc surface structure form with smooth outer wall, and the other is the structure form with net format arc surface on the outer wall.

[0037] Combined Figure 4As shown, when the outer wall surface of the anti-freezing layer 2 is a net-shaped cambered surface, the anti-freezing layer 2 comprises a bottom layer 2-1 and an outer layer 2-2, the bottom layer 2-1 and the outer layer 2-2 are sequentially adhered to be integrated, the inner wall of the bottom layer 2-1 is fixedly connected with the outer wall of the flow guide cover 1, and a plurality of pits 2-3 are processed on the outer wall of the outer layer 2-2, the pits 2-3 are circular or polygonal pits, which are used to realize multi-point recessed convergence of ice and snow, and are beneficial to the melting of the ice and snow after being concentrated and surrounded, and the destruction of the formation of the overall coverage of the ice and snow surface layer.

[0038] Further, the pits 2-3 replace the protrusions, the protrusions are circular or polygonal protrusions, which are used to realize multi-protrusion isolation of ice and snow, and are beneficial to the destruction of the overall formation of the ice and snow surface and the formation of the dispersed ice and snow area, so as to avoid the formation of the overall coverage of the ice and snow layer on the surface of the anti-freezing layer 2. The anti-freezing layer 2 can resist the low-temperature stress of the external environment, the structure form can reduce the anti-cracking probability of the flow guide cover 1, and the anti-freezing performance is improved.

[0039] Specific embodiment three: the anti-freezing layer 2 is a double-layer composite microcapsule layer, that is, the bottom layer 2-1 and the outer layer 2-2 are both double-layer composite microcapsule layers, the composition materials of the bottom layer 2-1 and the outer layer 2-2 are consistent, and the two can be integrally compounded.

[0040] Specific embodiment four: the inner-pasted heating layer 4 is a flexible heating layer, the shape of the inner-pasted heating layer 4 is matched with the shape of the inner wall of the flow guide cover 1, the inner-pasted heating layer 4 comprises an inner flexible heat-conducting outer skin 4-1 and an inner heating chip 4-2, and the inner heating chip 4-2 is arranged in the inner flexible heat-conducting outer skin 4-1. The flexible heating layer is made of existing flexible materials, has the characteristics of lightness, bendability and easy adhesion, the inner heating chip 4-2 is an important core part of the inner-pasted heating layer 4, can convert electric energy into heat energy, and the inner flexible heat-conducting outer skin 4-1 and the inner heating chip 4-2 can quickly and uniformly heat the pasted flow guide cover 1. Specifically, the inner flexible heat-conducting outer skin 4-1 is an outer layer body made of existing flexible heat-conducting materials, and the inner heating chip 4-2 is a grid-shaped metal mesh, which can realize the heating principle of resistance heating.

[0041] Specific embodiment five: the heating sleeve 5 is a corrugated sleeve body, which can realize elongation or compression after installation, realize length change, and realize sleeve heating effect at the corresponding position. The heating sleeve 5 comprises an outer flexible heat-conducting outer skin 5-1 and a corrugated heating sleeve 5-2, the outer flexible heat-conducting outer skin 5-1 is a circular sleeve body, an annular insertion slot is processed at the top of the outer flexible heat-conducting outer skin 5-1, and the corrugated heating sleeve 5-2 is coaxially inserted into the outer flexible heat-conducting outer skin 5-1.

[0042] Further, the corrugated heating sleeve 5-2 is a sleeve body enclosed by a mesh metal sheet, which realizes circumferential heating. The heat generated by the corrugated heating sleeve 5-2 is transmitted to the enclosed component through the inner wall of the corrugated heating sleeve 5-2. When the heating sleeve 5 is sleeved on the blade 11, the heat generated by the corrugated heating sleeve 5-2 is transmitted to the blade 11 through the inner wall of the corrugated heating sleeve 5-2, thereby realizing heating of the corresponding part of the enclosed blade 11.

[0043] Specific implementation method six: the number of heating sleeves 5 is three. The number of heating sleeves 5 is matched with the number of blades 11 in the existing wind turbine. The heating sleeves 5 can be uniformly arranged, which can heat the enclosed component and release heat to the inside of the fairing 1. In combination with the inner-pasted heating layer 4, a multi-position heating effect is formed, which is beneficial to rapidly increase the internal temperature of the outer anti-freezing and inner heating fairing, and beneficial to uniform heat transmission and penetration between the fairing 1 and each blade 11.

[0044] Specific implementation method seven: in combination with Figures 1 to 10 In this embodiment, the self-anti-freezing wind turbine includes an outer anti-freezing and inner heating fairing, a variable pitch mechanism 7, a nacelle shell 8, a motor assembly 9, a control cabinet 10, and three blades 11.

[0045] The outer anti-freezing and inner heating fairing includes a fairing 1, an anti-freezing layer 2, an inner-pasted heating layer 4, and a plurality of heating sleeves 5. The anti-freezing layer 2 is arranged on the outer wall of the fairing 1. The fairing 1 is processed with a plurality of through holes 3 along the thickness direction thereof. The inner-pasted heating layer 4 is arranged on the inner wall of the fairing 1. The inner-pasted heating layer 4 is processed with a plurality of hole bodies 6 along the thickness direction thereof, which are in one-to-one correspondence with the through holes 3. Each hole body 6 is provided with one heating sleeve 5. Each heating sleeve 5 is a flexible heating sleeve. One end of each heating sleeve 5 close to the inner-pasted heating layer 4 is connected with the inner-pasted heating layer 4. The inside of each heating sleeve 5 is connected with the through hole 3 through the corresponding hole body 6 to form a heating through channel.

[0046] In this embodiment, the fairing 1 is a conventional fairing, and its structure and working principle are consistent with those of the conventional fairing.

[0047] In this embodiment, the shape of the anti-freezing layer 2 is matched with the shape of the outer wall of the fairing 1. The anti-freezing layer 2 is a coating or a pasting layer made of anti-freezing material, which can resist the invasion of low temperature and comprehensively protect the fairing 1 from the outer wall of the fairing 1. This is beneficial to reduce the freezing degree of the outside of the fairing 1 and improve the durability of the fairing 1 in a low-temperature environment.

[0048] The inner-pasted heating layer 4 in the embodiment is arranged in cooperation with the shape of the inner wall of the flow guide cover 1, can realize heating treatment of the whole position of the inner wall of the flow guide cover 1, and can realize simultaneous protection and heating effect of the flow guide cover 1 and the blades 11 in cooperation with the heating sleeves 5. The heating power of the inner-pasted heating layer 4 and the heating sleeves 5 is derived from the electric energy generated by the self-anti-freezing wind power generator, and the heating and closing treatment is started according to the existing design electric control program.

[0049] In the embodiment, the flow guide cover 1 is arranged in the machine cabin shell 8, the pitch mechanism 7, the motor assembly 9 and the control cabinet 10 are arranged in the machine cabin shell 8, the front part of the pitch mechanism 7 is in the flow guide cover 1, the three blades 11 are uniformly distributed on the pitch mechanism 7, each blade 11 is provided with a heating penetration channel, one end of each blade 11 is connected with the pitch mechanism 7, the other end of each blade 11 penetrates in the corresponding heating penetration channel, the inner-pasted heating layer 4 is electrically connected with the motor assembly 9 and the control cabinet 10 respectively, and each heating sleeve 5 is electrically connected with the motor assembly 9 and the control cabinet 10 respectively.

[0050] In the embodiment, the working principle of the self-anti-freezing wind power generator is as follows:

[0051] The inner-pasted heating layer 4 and the heating sleeves 5 are heated by the power provided by the motor assembly 9, and are controlled by the instruction of the control cabinet 10. The heating treatment of the inner-pasted heating layer 4 and the heating sleeves 5 is started or stopped by the control cabinet 10, so that the corresponding heating operation of the inner-pasted heating layer 4 and the heating sleeves 5 is realized. The temperature sensor 12 matched with the outer anti-freezing inner heating flow guide cover is arranged at the front end of the pitch mechanism 7, and is electrically connected with the control cabinet 10. When the temperature in the flow guide cover 1 is lower than the set low temperature threshold value, the temperature sensor 12 transmits the detected temperature signal to the control cabinet 10. After the controller in the control cabinet 10 receives the temperature signal of the temperature sensor 12, the motor assembly 9 provides electric energy for the inner-pasted heating layer 4 and the heating sleeves 5, the inner-pasted heating layer 4 and the heating sleeves 5 heat the flow guide cover 1 and the roots of the three blades 11, realize the on-demand heating process, and can continuously heat according to the electric control program and the external temperature, so as to ensure the safe heating for the purpose of melting ice and snow. The specific electric control program is the existing program, and the implementation can be controlled by controlling the motor assembly 9. When the temperature sensor 12 detects that the temperature in the flow guide cover 1 reaches the predetermined temperature threshold value, the temperature sensor 12 transmits the detected temperature signal to the control cabinet 10. After the controller in the control cabinet 10 receives the temperature signal of the temperature sensor 12, the motor assembly 9 stops supplying power to the inner-pasted heating layer 4 and the heating sleeves 5.

[0052] The structure and working principle of the variable pitch mechanism 7, the nacelle shell 8, the motor assembly 9, the control cabinet 10 and the three blades 11 in the self-anti-freezing wind turbine are the same as those of the existing wind turbine. The structure and working principle of the tower 13 in the working process of the existing wind turbine are the same as those of the tower 13 in the working process of the existing wind turbine. The structure and working principle of the other necessary components in the working process of the wind turbine in the present embodiment are the same as those of the existing wind turbine.

[0053] Specific embodiment eight: the present embodiment is a further limitation of specific embodiment seven, the probe of the temperature sensor 12 is in the form of a circular sheet, the structure and working principle of the temperature sensor 12 are the same as those of the existing circular sheet type temperature sensor, the temperature sensor 12 can monitor the temperature in the dome 1 at regular intervals, and is configured in the central position of the front structure of the variable pitch mechanism 7, which is conducive to obtaining the stable real-time temperature in the dome 1, and the configuration position is stable and reliable, which is conducive to obtaining accurate temperature signals.

[0054] Specific embodiment nine: in combination with Figure 9 and Figure 10 The anti-freezing layer 2 in the present embodiment is a double-layer composite microcapsule layer, i.e., the bottom layer 2-1 and the outer layer 2-2 are both double-layer composite microcapsule layers, and the composition materials of the bottom layer 2-1 and the outer layer 2-2 are consistent. The double-layer composite microcapsule layer includes a cementing agent and a plurality of double-layer composite capsule bodies 14, and the cementing agent is an existing cementing agent. The mixing ratio of the plurality of double-layer composite capsule bodies 14 in the cementing agent is determined according to the existing specific preparation requirements and preparation methods, and the operation mode is the existing preparation method for cooperation between the cementing agent and the capsule body. Each double-layer composite capsule body 14 includes an outer capsule shell 14-1, an inner capsule shell 14-2, an outer capsule core 14-3 and an inner capsule core 14-4, the outer capsule shell 14-1 and the inner capsule shell 14-2 are both capsule-shaped shells, and the outer capsule shell 14-1 and the inner capsule shell 14-2 are coaxially arranged in sequence from the outside to the inside, the outer capsule core 14-3 is arranged between the inner wall of the outer capsule shell 14-1 and the outer wall of the inner capsule shell 14-2, and the inner capsule core 14-4 is arranged in the inner capsule shell 14-2. The inner capsule core 14-4 is a core made of energy storage phase change material, and the phase change material is an existing latent heat energy storage material, which can effectively improve the deformation, frost cracking and other conditions under high and low temperature conditions.

[0055] The plurality of double-layer composite capsule bodies 14 in the present embodiment have stability in the cementing agent, and when the plurality of double-layer composite capsule bodies 14 are combined with the cementing agent, the probability of cracking on the surface of the blade 11 can be reduced.

[0056] The inner capsule core 14-4 in the embodiment is an inner phase change microcapsule core structure, specifically, n-octanoic acid and tetradecane jointly constitute the core material, which changes from liquid to solid at low temperature environment, releases heat, and improves the low-temperature crack resistance of the cementing material.

[0057] The inner layer capsule shell 14-2 is an inner phase change microcapsule shell structure, specifically, a double polymer formed by mixing polyvinyl alcohol and methylated hexamethylol melamine resin, and carbon nanotubes are wound and deposited in the inner shell wall. Among them, the double polymer as the inner shell material can improve the strength and chemical stability of the phase change microcapsule; the carbon nanotubes as the photothermal material can convert light energy into heat energy to improve the energy storage effect of the phase change material, and at the same time, the carbon nanotubes can generate heat energy under the action of external electric field or magnetic field to further improve the energy storage of the phase change material.

[0058] The outer capsule core 14-3 is an annular structure and also an outer microcapsule core structure, clamped between the outer layer capsule shell 14-1 and the inner layer capsule shell 14-2. The outer capsule core 14-3 is an outer self-repairing microcapsule core structure, specifically, the core material is jointly composed of bio-oil and carbon nanotubes. Among them, the carbon nanotubes increase the filling effect of bio-oil on the cracks and pores of the blade 11, improve the permeability and repairability of bio-oil, and improve the self-healing performance.

[0059] The outer layer capsule shell 14-1 is an outer self-repairing microcapsule shell structure, specifically, a double polymer formed by mixing polyvinyl alcohol and methylated hexamethylol melamine resin, and carbon nanotubes are wound and deposited in the outer shell wall. Among them, the double polymer as the outer shell material can improve the response ability of the self-repairing microcapsule to the external environment; polyvinyl alcohol can be used as a vulnerable part of the self-repairing microcapsule shell material, which is more easily damaged and can accelerate the release of the core material; methylated hexamethylol melamine resin has the advantages of high stability and harmlessness due to its high cross-linking density and low formaldehyde content; the carbon nanotubes endow the self-repairing microcapsule with thermal induction and self-healing dual mechanisms, enhance the damage resistance of the shell layer material and the release effect of the core layer material, and at the same time, the thermal induction can also improve the self-healing ability.

[0060] The use of the double-layer composite microcapsule layer as the anti-freezing layer 2 in the coating is divided into two stages which are carried out in sequence:

[0061] The first stage: when the coating is damaged by external action, the outer shell structure of the double-layer composite microcapsule layer is damaged, the repair agent contained in the outer core is released and repairs the damaged coating, at the same time, the conductive nanomaterial contained in the outer shell structure generates heat energy under the action of external electric field or magnetic field, increases the fluidity of the repair agent, promotes the self-repairing effect of the damaged coating, and realizes the long-term durability of the coating.

[0062] The second stage: the above-mentioned released repair agent contains undamaged high-energy storage phase change microcapsules, which continue to play a high-energy storage role after the realization of the heat induction and self-repairing function of the composite microcapsule shell and outer core structure. The photothermal material contained in the high-energy storage phase change microcapsule wall not only stores photothermal energy in the phase change material, but also generates heat energy under the action of an external electric field or magnetic field and stores it in the phase change material, thereby realizing comprehensive performance such as high heat storage capacity, excellent photothermal conversion performance, and good thermal conductivity, and realizing the temperature regulation effect of the coating in a low-temperature environment and effectively inhibiting the formation of ice layer on the surface of the coating.

[0063] The double-layer composite microcapsule layer antifreeze layer in the embodiment has a slow kinetic energy, which can slowly release the encapsulated substances under certain conditions, and is also beneficial to maintaining the concentration and activity of the encapsulated substances in a low-temperature environment. Other existing long-lasting antifreeze materials can also be replaced to form the antifreeze layer 2.

Claims

1. An ice-phobic, internally-heated flow deflector, characterized by: The anti-freezing layer (2) is a double-layer composite microcapsule layer, and the double-layer composite microcapsule layer comprises a cementing agent and a plurality of double-layer composite capsule bodies (14).

2. The outer anti-icing, inner heating flow sleeve of claim 1, wherein: The outer wall surface of the anti-freezing layer (2) is an arc surface or a net format arc surface.

3. The outer de-icing and inner heating flow cone according to claim 1 or 2, characterized in that: The anti-freezing layer (2) is a double-layer composite microcapsule layer, and the double-layer composite microcapsule layer comprises a cementing agent and a plurality of double-layer composite capsule bodies (14).

4. The outer anti-icing, inner heating flow sleeve of claim 1, wherein: The inner pasting heating layer (4) is a flexible heating layer, and the shape of the inner pasting heating layer (4) is matched with the shape of the inner wall of the fairing (1).

5. The outer de-icing and inner heating flow sleeve according to claim 4, characterized in that: The heating sleeve (5) is a corrugated sleeve body, and the heating sleeve (5) comprises an outer flexible heat-conducting outer skin (5-1) and a corrugated heating sleeve (5-2).

6. The outer anti-icing, inner heating flow sleeve of claim 1, wherein: The number of the heating sleeves (5) is three.

7. A self-frost protection wind turbine, comprising the outer anti-frost and inner heating wind-shield according to any one of claims 1 to 6, characterized in that: The anti-freezing inner heating fairing, the variable pitch mechanism (7), the nacelle shell (8), the motor assembly (9), the control cabinet (10) and the three blades (11) The outer anti-freezing and inner heating fairing comprises a fairing (1), an anti-freezing layer (2), an inner adhesive heating layer (4) and a plurality of heating sleeves (5), the outer wall of the fairing (1) is provided with the anti-freezing layer (2), the fairing (1) is processed with a plurality of through holes (3) along the thickness direction thereof, the inner wall of the fairing (1) is provided with the inner adhesive heating layer (4), the inner adhesive heating layer (4) is processed with a plurality of hole bodies (6) corresponding to the through holes (3) along the thickness direction thereof, each hole body (6) is provided with one heating sleeve (5) correspondingly, each heating sleeve (5) is a flexible heating sleeve, one end of each heating sleeve (5) close to the inner adhesive heating layer (4) is connected with the inner adhesive heating layer (4), and the inside of each heating sleeve (5) is connected with the through hole (3) through the corresponding hole body (6) to form a heating through channel; The fairing (1) is spaced apart from the nacelle shell (8), the variable pitch mechanism (7), the motor assembly (9) and the control cabinet (10) are all arranged in the nacelle shell (8), the front part of the variable pitch mechanism (7) is in the fairing (1), three blades (11) are uniformly distributed on the variable pitch mechanism (7), each blade (11) is provided with one heating through channel correspondingly, one end of each blade (11) is connected with the variable pitch mechanism (7), and the other end of each blade (11) is arranged in the corresponding heating through channel, the inner adhesive heating layer (4) is electrically connected with the motor assembly (9) and the control cabinet (10) respectively, and each heating sleeve (5) is electrically connected with the motor assembly (9) and the control cabinet (10) respectively.

8. A self-antifreeze wind power generator according to claim 7, characterized in that: The front end of the variable pitch mechanism (7) is provided with a temperature sensor (12) matched with the outer anti-freezing and inner heating fairing, and the temperature sensor (12) is electrically connected with the control cabinet (10).

Images