Blade deicing device

Abstract

The utility model discloses a blade deicing device which comprises a blade assembly, a power generation component and a deicing assembly, the blade assembly comprises a plurality of blade bodies, and the surface of each blade body comprises a first heating structure; the blade assembly is rotationally connected to the mounting end of the power generation component; the deicing assembly is fixedly connected to the mounting end of the power generation component and located on the side, facing the power generation component, of the blade assembly. When the blade assembly is frozen, the temperature of the first heating structure located on the surface of the blade body is increased, so that an ice layer attached to the blade body is preliminarily melted, and meanwhile, the deicing assembly starts to work and removes the ice layer attached to the blade body; the deicing assembly is located on the side, facing the power generation component, of the blade assembly, when the blade assembly does not need to be deiced, the deicing assembly cannot shield the side, used for receiving wind energy, of the blade assembly, and the wind power generation efficiency is guaranteed; the blade deicing device is simple in structure, the installation process is simple, and the structural strength and stability of the blade assembly can be guaranteed conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of blade maintenance, and in particular to a blade deicing device. Background Art

[0002] In recent years, my country's installed wind power capacity has continued to rise. Due to the inherent characteristics of wind power, wind farms are often located in areas with large temperature differences between day and night, such as plateaus and deserts. When wind turbine blades operate in low-temperature environments at night, ice often forms on their surfaces. This ice can seriously affect the unit's power generation efficiency. Severe ice on the blades can even cause the wind turbine to cease operation. Therefore, ice on wind turbine blades can lead to significant power generation losses.

[0003] The current wind turbine blade deicing device is fixedly installed on the outside of the blade. When deicing is not needed, it will block the side of the blade that receives wind energy, thereby reducing the efficiency of wind power generation. In addition, the installation process of existing deicing equipment is relatively complicated and the structure is relatively complex, which will affect the structural strength and stability of the blade. Utility Model Content

[0004] In order to solve at least one of the above technical problems, the present application provides a blade deicing device, and the technical solution adopted is as follows:

[0005] The present application provides a blade de-icing device, which includes a blade assembly, a power generation component and a de-icing assembly. The blade assembly includes a plurality of blade bodies, and the surface of the blade body includes a first heating structure, which is used to increase the temperature of the blade body; the power generation component is fixedly arranged, and the blade assembly is rotatably connected to the mounting end of the power generation component, and the power generation component converts wind energy received by the blade assembly into electrical energy; the de-icing assembly is fixedly connected to the mounting end of the power generation component, and the de-icing assembly is located on the side of the blade assembly facing the power generation component. The blade body passes through the de-icing assembly during rotation, and the de-icing assembly is used to remove the ice layer attached to the blade body.

[0006] In certain embodiments of the present application, the de-icing assembly includes a support component and a de-icing unit, wherein the support component extends outward from the mounting end of the power generation component, and the de-icing unit is connected to the side of the support component facing the blade assembly, and the de-icing unit is used to heat the blade body and cut the ice layer attached to the blade body.

[0007] In certain embodiments of the present application, the de-icing unit includes a second heating structure and a contact component, wherein the contact component is embedded in the second heating structure and protrudes from the surface of the second heating structure, the second heating structure is used to heat the contact component, and the contact component is used to resist and cut the ice layer attached to the blade body.

[0008] In certain embodiments of the present application, the de-icing unit further includes a telescopic component and a movable component, wherein the movable component is connected to the support component through the telescopic component, the second heating structure and the contact component are connected to the movable component, and the telescopic component drives the movable component to move and drives the telescopic component and the movable component close to the blade assembly.

[0009] In certain embodiments of the present application, the blade body includes a reinforcing component, the surface of the blade body includes a supporting layer surrounding the outside of the reinforcing component, the first heating structure is formed as a heating layer, and the heating layer covers the outside of the supporting layer.

[0010] In certain embodiments of the present application, the heating layer includes a plurality of heating elements, and each heating element is evenly distributed on the outside of the supporting layer.

[0011] In certain embodiments of the present application, the surface of the blade body further includes an insulating layer, and the insulating layer covers the outer side of the heating layer.

[0012] In certain embodiments of the present application, the surface of the blade body further includes a shell, which covers the outside of the insulating layer, the shell envelops the supporting layer, the heating layer and the insulating layer, and the ice layer attached to the blade body is on the outside of the shell.

[0013] In certain embodiments of the present application, the surface of the blade body further includes a temperature sensor and an ice sensor, and the temperature sensor and the ice sensor are disposed on the shell.

[0014] In certain embodiments of the present application, the blade de-icing device also includes a control system, and the temperature sensor and the ice sensor are both electrically connected to the control system; when the temperature sensor detects that the temperature of the blade body is lower than a set value, and the ice sensor detects that the blade body is frozen, the temperature sensor and the ice sensor send signals to the control system, and the control system controls the heating layer and the de-icing component to perform de-icing.

[0015] The embodiments of the present application have at least the following beneficial effects: in the present application, when the blade assembly is frozen, the first heating structure on the surface of the blade body increases the temperature, causing the ice layer attached to the blade body to initially melt, and at the same time, the de-icing assembly starts working and removes the ice layer attached to the blade body; the de-icing assembly is on the side of the blade assembly facing the power generation component. When the blade assembly does not need to be de-iced, the de-icing assembly will not block the side of the blade assembly for receiving wind energy, thereby ensuring the efficiency of wind power generation; the blade de-icing device of the present application has a simple structure and a relatively simple installation process, which is convenient for ensuring the structural strength and stability of the blade assembly.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic structural diagram of the blade deicing device of the present application;

[0019] Figure 2 It is a schematic structural diagram of the blade body in the blade deicing device of the present application;

[0020] Figure 3 This is the blade deicing device of this application Figure 2 A partial enlarged view of part A;

[0021] Figure 4 It is a structural schematic diagram of the deicing unit in the blade deicing device of the present application.

[0022] Reference numerals:

[0023] Blade body 101; reinforcement component 102; support layer 103; heating layer 104; insulation layer 105; shell 106;

[0024] Temperature sensor 201; Ice sensor 202;

[0025] Power generation component 301; support component 302; de-icing unit 303;

[0026] Second heating structure 401 ; contact component 402 ; telescopic component 403 ; movable component 404 . DETAILED DESCRIPTION

[0027] This section will combine Figures 1 to 4Embodiments of the present application are described in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and are not to be construed as limiting the present application.

[0028] In the description of this application, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Features defined as "first" and "second" are used to distinguish feature names, rather than having special meanings. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] like Figure 1 As shown, an embodiment of the present application provides a blade deicing device, which includes a blade assembly, a power generation component 301 and a deicing assembly.

[0031] In rainy or snowy conditions, ice may form on the surface of the blade assembly, affecting power generation efficiency. Ice deposited on the blade assembly surface needs to be promptly removed. The blade assembly and de-icing assembly are connected to the power generation component 301, with the de-icing assembly located on the side of the blade assembly facing the power generation component 301. When the blade assembly does not require de-icing, the de-icing assembly does not obstruct the side of the blade assembly receiving wind energy, ensuring efficient wind power generation. When de-icing is required, the blade assembly itself raises its temperature to initially melt the attached ice. The de-icing assembly also raises the temperature of the blade assembly, further melting the attached ice for easier cutting. The de-icing assembly then cuts the attached ice, completing the entire de-icing process.

[0032] In some examples, the blade assembly includes a plurality of blade bodies 101. It is understood that the ends of the blade bodies 101 are close to each other and connected to each other by a shaft to form a whole, while the other ends of the blade bodies 101 diverge away from each other. Specifically, three blade bodies 101 are provided.

[0033] When ice forms on the blade assembly, the ice primarily adheres to the outer surface of the blade body 101. Blade body 101 is equipped with a first heating structure, which radiates heat to raise the temperature of blade body 101, thereby initially melting the attached ice. Furthermore, the first heating structure is located on the surface of blade body 101, keeping a short distance from the ice, further facilitating its melting.

[0034] like Figure 2 and Figure 3 As shown, in some examples, the blade body 101 includes reinforcement components 102, which are staggeredly arranged inside the blade body 101 to form an internal frame of the blade body 101. It will be understood that the reinforcement components 102 can enhance the structural strength of the blade body 101 and increase the service life of the blade body 101. Specifically, the reinforcement components 102 include reinforced metal plates.

[0035] Furthermore, the surface of the blade body 101 includes a support layer 103 surrounding the outside of the reinforcement component 102. The support layer 103 is made of a relatively high-strength material. The support layer 103 is the basis for laying other layered structures and defines the basic shape of the blade body 101.

[0036] At the same time, the first heating structure is formed as a heating layer 104 . The heating layer 104 covers the outer side of the supporting layer 103 . The heating layer 104 is used to increase the temperature of the blade body 101 .

[0037] In some examples, the heating layer 104 includes a plurality of heating elements that emit heat when powered by electricity. The heating elements are evenly distributed outside the support layer 103, thereby uniformly increasing the temperature of each location on the blade body 101 and ensuring that ice deposited on each location on the blade body 101 is initially melted.

[0038] Specifically, the heating element here includes a heating wire or other electronic component capable of generating heat, which generates heat through the action of electric current and is embedded in the heating layer 104. The heat generated by the heating wire when energized increases the temperature of the blade body 101, thereby melting the ice layer.

[0039] In some examples, the surface of the blade body 101 further includes an insulating layer 105 . It is understood that the insulating layer 105 is made of insulating material. The insulating layer 105 covers the outer side of the heating layer 104 .

[0040] The insulating layer 105 allows the heat generated by the heating layer 104 to be transferred more efficiently and evenly to the outer side of the blade body 101, reducing heat loss and accelerating the melting of the ice. Furthermore, the insulating layer 105 protects the heating layer 104. In harsh environments, such as those with high humidity and high wind speeds, the insulating layer 105 prevents impurities such as moisture and dust from contacting the heating layer 104, reducing the possibility of damage to the heating layer 104 and thereby extending its service life.

[0041] In some examples, the surface of the blade body 101 also includes a shell 106, which covers the outside of the insulating layer 105. The surface of the blade body 101 is formed into a four-layer structure, from the inside to the outside, including the support layer 103, the heating layer 104, the insulating layer 105 and the shell 106.

[0042] The shell 106 is the structure that directly connects the blade body 101 to the external environment. To ensure the structural strength of the blade body 101, similar to the support layer 103, the shell 106 must also be made of a high-strength material. The clamping action of the strong support layer 103 and the shell 106 ensures that the heating layer 104 and the insulating layer 105 remain stable, preventing them from shifting between the support layer 103 and the shell 106, which could affect the uniform distribution of the heating elements. It is understood that the ice layer primarily adheres to the outer side of the shell 106.

[0043] like Figure 2As shown, in some examples, the surface of blade body 101 also includes a temperature sensor 201 and an ice sensor 202. Because ice often adheres to the outside of housing 106, both temperature sensor 201 and ice sensor 202 are located on housing 106. Temperature sensor 201 is used to detect the temperature outside housing 106, and ice sensor 202 is used to detect whether ice is formed on the outside of housing 106. When temperature sensor 201 detects a temperature below a set value and ice sensor 202 detects ice formation, the blade de-icing device activates heating layer 104 and the de-icing assembly, immediately performing de-icing operations.

[0044] In some examples, power generation component 301 is fixed and upright on the ground, with its mounting end at the top. The blade assembly is pivotally connected to the mounting end of power generation component 301. Power generation component 301 is used to convert wind energy received by the blade assembly into electrical energy. Power generation component 301 also supports the blade assembly and de-icing assembly.

[0045] like Figure 1 As shown, the de-icing assembly is fixedly connected to the mounting end of the power generation component 301. Since the side of the blade assembly facing away from the power generation component 301 is used to receive wind energy, in order to prevent the de-icing assembly from affecting the wind power generation efficiency of the blade assembly, the de-icing assembly is located on the side of the blade assembly facing the power generation component 301 to prevent the side of the blade assembly facing away from the power generation component 301 from being blocked.

[0046] The de-icing assembly is used to remove ice from the blade bodies 101. As the blade assembly rotates relative to the power generation component 301, it also rotates relative to the de-icing assembly. During rotation, each blade body 101 continuously passes through the de-icing assembly, completing the de-icing process for all blade bodies 101. Specifically, two de-icing assemblies are provided.

[0047] In some examples, the de-icing assembly includes a support member 302 and a de-icing unit 303. Support member 302 is generally formed into a rod-shaped structure, with one end of support member 302 connected to the mounting end of power generation member 301 and the other end extending away from the mounting end. When two de-icing assemblies are provided, two support members 302 are provided: one support member 302 extends upward from the mounting end of power generation member 301, and the other support member 302 extends downward from the mounting end of power generation member 301.

[0048] Furthermore, a de-icing unit 303 is connected to the side of the support member 302 facing the blade assembly, facilitating the proximity of the de-icing unit 303 and the blade body 101 to complete the de-icing operation. Each support member 302 is equipped with several de-icing units 303, specifically, two de-icing units 303 are arranged in parallel on each support member 302. On the one hand, the de-icing unit 303 continues to heat the blade body 101, further melting the ice layer attached to the outside of the blade body 101, facilitating its removal; on the other hand, the de-icing unit 303 is used to cut the ice layer, causing it to fall off the blade body 101.

[0049] like Figure 4 As shown, in some examples, de-icing unit 303 includes a second heating structure 401 and a contact member 402. The second heating structure 401 corresponds to the contact member 402 one by one, and each contact member 402 is embedded in the middle of each second heating structure 401. Specifically, each de-icing unit 303 is provided with four second heating structures 401 and four contact members 402.

[0050] The second heating structure 401 is used to dissipate heat and transfer the heat to the ice layer through the contact member 402, thereby further melting the ice layer and facilitating subsequent cutting. Specifically, the second heating structure 401 uses a heating element such as a heating wire.

[0051] At the same time, contact member 402 contacts the ice layer attached to the outside of blade body 101. Since the de-icing assembly is fixed in position, contact member 402 is also fixed in position. When blade body 101 rotates past contact member 402, contact member 402 cuts the ice layer, causing it to fall off. Specifically, contact member 402 is generally formed into a block-shaped structure.

[0052] It is understandable that the second heating structure 401 does not need to contact the ice layer, but the contact member 402 must contact the ice layer. Therefore, the contact member 402 protrudes from the surface of the second heating structure 401.

[0053] like Figure 4 As shown, in some examples, the deicing unit 303 further includes a telescopic component 403 and a movable component 404 , the movable component 404 is connected to the support component 302 through the telescopic component 403 , and the second heating structure 401 and the contact component 402 are connected to the movable component 404 .

[0054] When the blade assembly needs to be de-iced, the length of the telescopic member 403 increases, driving the movable member 404 closer to the blade assembly. The second heating structure 401 and the contact member 402 on the movable member 404 also gradually approach the blade assembly, thereby completing the de-icing operation. When the blade assembly does not need to be de-iced, the length of the telescopic member 403 decreases, driving the movable member 404 away from the blade assembly. The second heating structure 401 and the contact member 402 on the movable member 404 also gradually move away from the blade assembly to avoid affecting the rotation of the blade assembly. Specifically, the telescopic member 403 includes a hydraulic rod.

[0055] In some examples, the blade de-icing device further includes a control system, to which temperature sensor 201 and ice sensor 202 are electrically connected, heating layer 104 and second heating structure 401 are electrically connected, and telescopic member 403 is also electrically connected. The control system provides comprehensive control over the de-icing operation.

[0056] During actual implementation, the temperature sensor 201 and the ice sensor 202 monitor the temperature and ice conditions of the blade body 101 in real time. When the temperature sensor 201 senses a temperature below a preset value and the ice sensor 202 detects ice formation, the control system receives the corresponding signal and immediately controls the heating layer 104 to generate heat. Simultaneously, the control system controls the telescopic component 403 to increase its length, causing the movable component 404 to move the contact component 402 to the surface of the blade body 101. The contact component 402 contacts the ice layer on the surface of the blade body 101, and the second heating structure 401 conducts heat to the contact component 402. As the blade body 101 rotates, it collides with the contact components 402, heating and cutting the ice layer on the surface. The de-icing assembly and the heating layer 104 work together to melt and remove the ice on the surface of the blade body 101, thereby completing the de-icing process and ensuring normal wind power generation.

[0057] In the description of this specification, if the reference terms "one embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" appear, it means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0058] The above describes the implementation methods of the present application in detail in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A blade deicing device, characterized in that: include: A blade assembly, wherein the blade assembly includes a plurality of blade bodies, and the surface of the blade body includes a first heating structure, and the first heating structure is used to increase the temperature of the blade body; A power generation component, wherein the power generation component is fixedly arranged, the blade assembly is rotatably connected to the mounting end of the power generation component, and the power generation component converts wind energy received by the blade assembly into electrical energy; A de-icing assembly is fixedly connected to the mounting end of the power generation component. The de-icing assembly is located on the side of the blade assembly facing the power generation component. The blade body passes through the de-icing assembly during rotation. The de-icing assembly is used to remove the ice layer attached to the blade body.

2. The blade deicing device according to claim 1, characterized in that: The deicing assembly includes a support component and a deicing unit. The support component extends outward from the mounting end of the power generation component. The deicing unit is connected to the side of the support component facing the blade assembly. The deicing unit is used to heat the blade body and cut the ice layer attached to the blade body.

3. The blade deicing device according to claim 2, characterized in that: The deicing unit includes a second heating structure and a contact component. The contact component is embedded in the second heating structure and protrudes from the surface of the second heating structure. The second heating structure is used to heat the contact component. The contact component is used to resist and cut the ice layer attached to the blade body.

4. The blade deicing device according to claim 3, characterized in that: The deicing unit also includes a telescopic component and a movable component, the movable component is connected to the supporting component through the telescopic component, the second heating structure and the contact component are connected to the movable component, the telescopic component drives the movable component to move, and drives the telescopic component and the movable component to approach the blade assembly.

5. The blade deicing device according to claim 1, characterized in that: The blade body includes a reinforcement component, the surface of the blade body includes a support layer surrounding the outer side of the reinforcement component, the first heating structure is formed as a heating layer, and the heating layer covers the outer side of the support layer.

6. The blade deicing device according to claim 5, characterized in that: The heating layer includes a plurality of heating elements, and each heating element is evenly distributed on the outer side of the supporting layer.

7. The blade deicing device according to claim 5, characterized in that: The surface of the blade body further includes an insulating layer, and the insulating layer covers the outer side of the heating layer.

8. The blade deicing device according to claim 7, characterized in that: The surface of the blade body further includes a shell, which covers the outside of the insulating layer. The shell encloses the supporting layer, the heating layer and the insulating layer, and the ice layer attached to the blade body is located outside the shell.

9. The blade deicing device according to claim 8, characterized in that: The surface of the blade body further includes a temperature sensor and an ice sensor, and the temperature sensor and the ice sensor are arranged on the shell.

10. The blade deicing device according to claim 9, characterized in that: The blade deicing device also includes a control system, and the temperature sensor and the ice sensor are both electrically connected to the control system; when the temperature sensor detects that the temperature of the blade body is lower than a set value and the ice sensor detects that the blade body is frozen, the temperature sensor and the ice sensor send signals to the control system, and the control system controls the heating layer and the deicing assembly to perform deicing.

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