Wind turbine blade infrared radiation active de-icing device

Abstract

The utility model discloses a wind turbine blade infrared radiation active deicing device belongs to wind power generation technical field, and this device includes the car body, infrared radiation lamp, energy storage battery and inverter, still include the drawing mechanism of setting in the car body top and set up in the swing mechanism of car body front, and the drawing mechanism includes the photovoltaic board of unfolding and the drive assembly of driving its unfolding, and drive assembly passes through servo motor drive bidirectional screw rod, makes the frame board of installing photovoltaic board unfold or contract, charges for energy storage battery, and the swing mechanism includes the squeegee and the power assembly of driving its swing, is used for cleaning the ground in front of car body. The utility model discloses through the integration photovoltaic drawing mechanism and ground swing cleaning mechanism, has solved the existing mobile deicing device energy supply difficult, the problem of insufficient endurance and under the driving energy consumption high and unsafe of bad road condition, has the advantages of energy self -supply, endurance is strong, and driving safety energy -conserving.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to an active de-icing device for wind turbine blades using infrared radiation. Background Technology

[0002] Wind turbines are key equipment for utilizing wind energy, and the aerodynamic shape of their blades is crucial to power generation efficiency. However, wind turbines are mostly installed in areas with abundant wind resources but harsh climate conditions, such as high mountains and coastal areas. In winter and spring, supercooled water droplets in the air easily freeze on the blade surface, forming icing. Icing on the blades not only damages their precise aerodynamic shape, leading to a significant decrease in wind energy capture efficiency, but also causes uneven blade mass distribution, exacerbating unit vibration, and in severe cases, may even lead to structural damage and safety accidents.

[0003] To address the issue of blade icing, the industry has developed various active de-icing technologies. Among them, mobile de-icing devices based on vehicle platforms have become an important development direction due to their high flexibility and ability to serve multiple units throughout a wind farm. These devices are typically equipped with high-power heating systems, such as infrared radiation lamps, to heat and de-ic the blades in a non-contact manner, avoiding potential damage from physical contact.

[0004] However, in practical applications, these mobile de-icing devices generally face a real dilemma: their high-power infrared radiation heating systems are extremely energy-intensive, and wind farms are typically located in remote areas where on-site power supply is difficult. The devices cannot support long-term, high-intensity continuous de-icing operations solely with their onboard energy storage batteries. Energy replenishment and endurance become key bottlenecks restricting their application effectiveness. Furthermore, the environments requiring de-icing operations are often characterized by snow and ice cover or debris, which not only significantly increases vehicle drag, causing excessive consumption of precious electrical energy during travel, but also poses a serious challenge to vehicle safety.

[0005] Therefore, this utility model proposes an infrared radiation active de-icing device for wind turbine blades to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems of existing wind turbine blade infrared radiation active de-icing devices, such as difficulty in energy replenishment during field operations, insufficient endurance, high energy consumption and low safety when driving in harsh road conditions, this utility model aims to provide a wind turbine blade infrared radiation active de-icing device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an active de-icing device for wind turbine blades using infrared radiation, comprising: a vehicle body, infrared radiation lamps, an energy storage battery, and an inverter; as well as a suction mechanism located on the top of the vehicle body and a swing mechanism located at the front end of the vehicle body.

[0008] The extraction mechanism has an automatic unfolding and retracting structure, which includes a frame plate that can move away from or towards each other, a photovoltaic panel installed inside the frame plate, and a drive assembly that drives the frame plate to move. The overall structure of the drive assembly is supported by a U-shaped support plate, and a bidirectional lead screw is rotatably connected inside the U-shaped support plate. The frame plate is threadedly engaged with the bidirectional lead screw. The drive assembly also includes a servo motor, which drives the bidirectional lead screw to rotate, thereby enabling the frame plate to unfold or retract synchronously. The photovoltaic panel is electrically connected to the energy storage battery through a junction box and an inverter to form a self-charging circuit.

[0009] Furthermore, the swing mechanism is located at the front of the vehicle body and is used to clean the road surface. The swing mechanism includes a scraper and a power component for driving the scraper to swing. The power component is connected to the scraper through a precision transmission mechanism, which converts the output motion of the power source into the reciprocating swing of the scraper to achieve the obstacle clearing function.

[0010] Preferably, the power transmission method of the drive component is indirect transmission, which includes a worm fixedly connected to the output end of the servo motor and a worm wheel fixedly sleeved in the middle of the bidirectional lead screw. The servo motor drives the bidirectional lead screw to rotate through the meshing transmission of the worm and the worm wheel. This worm gear transmission structure has the advantages of smooth transmission and self-locking.

[0011] Preferably, in order to improve the stability and accuracy of the unfolding and retracting process of the suction mechanism, the drive assembly further includes a guide post, which is arranged parallel to the bidirectional lead screw. One side of the frame plate is slidably engaged with the guide post. The guide post plays a precise guiding and limiting role for the linear movement of the frame plate, preventing it from deflecting or shaking during movement.

[0012] Preferably, the infrared radiation lamp is connected to the vehicle body via a rotating base, which is rotatably mounted on the vehicle body. This allows the illumination angle of the infrared radiation lamp to be flexibly adjusted according to the specific location of the ice formation on the blades, thereby improving the accuracy and coverage of the de-icing operation.

[0013] Preferably, the power component of the swing mechanism specifically includes a servo motor and a connecting rod. One end of the connecting rod is rotatably connected to the output end of the servo motor, and the other end is connected to the scraper through a transmission mechanism to provide continuous and stable power for the swing of the scraper.

[0014] Preferably, the power of the power assembly is transmitted to the scraper through a transmission mechanism consisting of a double-section rotating plate and a connecting plate. Specifically, the other end of the connecting rod is rotatably connected to one end of the double-section rotating plate, and the other end of the double-section rotating plate is rotatably connected to the connecting plate. This linkage mechanism design can efficiently convert the rotational motion of the servo motor into a large-amplitude oscillation of the scraper.

[0015] Preferably, in order to provide a stable mounting base and motion fulcrum for the swing mechanism, the swing mechanism also includes a support plate, which is fixed to the front end of the vehicle body. The connecting plate is rotatably connected to the bottom of the support plate, and the scraper is fixedly connected to the bottom of the connecting plate, ensuring that the swing mechanism is structurally stable and moves reliably during operation.

[0016] Preferably, in order to form a complete energy management loop, all electrical components in the device are connected by wires. The photovoltaic panels, junction boxes, inverters, energy storage batteries and infrared radiation lamps are connected by wires to form a complete power supply and charging loop, realizing the collection, conversion, storage and efficient utilization of energy.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of difficult energy replenishment and insufficient endurance of existing mobile de-icing devices when operating in the field by setting up a photovoltaic absorption mechanism that can automatically unfold and retract. It achieves the technical effect of being able to replenish its own power, significantly extending the operating endurance and improving the device's independent operation capability.

[0018] 2. This utility model solves the problems of high wheel friction resistance, high energy consumption, and safety hazards when the device is driven on bad road conditions such as snow or debris by setting a swing mechanism that can swing back and forth at the front of the vehicle body. It achieves the technical effect of effectively clearing obstacles in front, reducing driving energy consumption, and improving the driving safety and stability of the vehicle.

[0019] 3. This utility model integrates the infrared radiation lamp, the absorption mechanism, and the swing mechanism onto a single vehicle body, and adopts a sophisticated mechanical transmission structure such as a worm gear, a two-way lead screw, and a connecting rod. This solves the problems of existing devices having a single structure, dispersed functions, and inability to adapt to complex working environments, achieving the technical effect of a compact overall structure, strong functional synergy, high degree of automation, and strong environmental adaptability. Attached Figure Description

[0020] Figure 1 This is a perspective view of the active de-icing device for wind turbine blades using infrared radiation proposed in this utility model. Figure 2 This is a rear view of the active de-icing device for wind turbine blades using infrared radiation, as proposed in this utility model. Figure 3 This is a cross-sectional view of the active de-icing device for wind turbine blades using infrared radiation proposed in this utility model. Figure 4 This is a partial structural exploded view of the active de-icing device for wind turbine blades using infrared radiation proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is an exploded view of the swing mechanism of the active de-icing device for wind turbine blades using infrared radiation, as proposed in this utility model.

[0021] Legend: 1. Vehicle body; 2. Picking mechanism; 201. Frame plate; 202. Photovoltaic panel; 203. Drive assembly; 2031. Servo motor; 2032. Worm gear; 2033. Guide column; 2034. Two-way lead screw; 2035. U-shaped support plate; 2036. Worm wheel; 3. Swing mechanism; 301. Support plate; 302. Double-section rotating plate; 303. Connecting plate; 304. Scraper; 305. Power assembly; 3051. Servo motor; 3052. Connecting rod; 4. Infrared radiation lamp; 5. Junction box; 6. Inverter; 7. Energy storage battery; 8. Wire; 9. Rotating seat. Detailed Implementation

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0023] Reference Figures 1 to 6 This utility model provides an infrared radiation active de-icing device for wind turbine blades, which aims to solve the problems of existing wind turbine blade de-icing devices having difficulty in energy replenishment and insufficient endurance when operating in the field, as well as high energy consumption and low safety when driving in harsh road conditions.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the wind turbine blade infrared radiation active de-icing device includes a vehicle body 1 serving as a mobile platform. The vehicle body 1 integrates an infrared radiation lamp 4 for performing de-icing operations, a power extraction mechanism 2 for self-power replenishment, and a swing mechanism 3 for clearing obstacles along the path. The infrared radiation lamp 4 is rotatably mounted on the vehicle body 1 via a rotating base 9. The power extraction mechanism 2 is located on the top of the vehicle body 1, and the swing mechanism 3 is located at the front end of the vehicle body 1. The device also includes an energy storage battery 7, an inverter 6, a junction box 5, and wires 8 for connecting various electrical components. The energy storage battery 7 and the inverter 6 together provide power to the infrared radiation lamp 4.

[0025] Key references Figure 4 and Figure 5The extraction mechanism 2 includes a frame plate 201 that can move away from or towards each other, a photovoltaic panel 202 installed inside the frame plate 201, and a drive assembly 203 for driving the frame plate 201 to unfold or retract. The overall structure of the drive assembly 203 is supported by a U-shaped support plate 2035, and a bidirectional lead screw 2034 is rotatably connected inside the U-shaped support plate 2035. Each frame plate 201 is threadedly engaged with the bidirectional lead screw 2034. The drive assembly 203 also includes a servo motor 2031. A worm gear 2032 is fixedly connected to the output end of the servo motor 2031, and a worm wheel 2036 is fixedly sleeved in the middle of the bidirectional lead screw 2034. The servo motor 2031... The worm gear 2032 and worm wheel 2036 mesh to drive the bidirectional lead screw 2034 to rotate, thereby enabling the two frame plates 201 to synchronously unfold or retract along the axial direction of the bidirectional lead screw 2034. To ensure the smooth movement of the frame plates 201, the drive assembly 203 is also provided with a guide post 2033, which is fixedly set parallel to the bidirectional lead screw 2034, and one side of the frame plate 201 slides in cooperation with the guide post 2033. When the absorption mechanism 2 is working, the photovoltaic panel 202 absorbs light energy to generate electrical energy, which is collected by the junction box 5, converted into a suitable voltage by the inverter 6, and finally transmitted to the energy storage battery 7 for storage by the wire 8.

[0026] To further solve the above-mentioned technical problems, the technical solution of this embodiment is that the wind turbine blade infrared radiation active de-icing device includes a swing mechanism 3 disposed at the front end of the vehicle body 1, and a stable installation and power transmission relationship is formed between the swing mechanism 3 and the vehicle body 1.

[0027] Key references Figure 1 and Figure 6 The structure of the swing mechanism 3 will be described in detail below: The swing mechanism 3 includes a support plate 301 for fixed installation, a linkage assembly for transmitting motion, and a scraper 304 for cleaning the ground. The support plate 301 is fixed to the bottom front end of the vehicle body 1, providing a stable mounting base for the entire swing mechanism 3. The linkage assembly includes a double-section rotating plate 302 and a connecting plate 303. The end of the connecting plate 303 away from the scraper 304 is rotatably connected to the bottom of the support plate 301, while the scraper 304 is fixedly connected to the bottom of the connecting plate 303. The swing mechanism 3 also includes a power assembly 305 that provides power to it. The power assembly 305 includes a servo motor 3051 and a connecting rod 3052. The servo motor 3051 is fixedly installed on the vehicle body 1, and its output end is rotatably connected to the connecting rod. One end of the connecting rod 3052 is rotatably connected to one end of the double-section rotating plate 302, and the other end of the double-section rotating plate 302 is further rotatably connected to the connecting plate 303. In the assembled state, the servo motor 3051, the connecting rod 3052, the double-section rotating plate 302, the connecting plate 303, and the support plate 301, which serves as the frame, together constitute a sophisticated linkage transmission system. When the servo motor 3051 is working, its output rotational motion is efficiently converted into the reciprocating oscillating motion of the connecting plate 303 and the scraper 304 through this transmission system. This structure ensures that the scraper 304 can sweep the ground with sufficient torque and oscillation amplitude, thereby effectively pushing snow or debris to both sides of the vehicle body 1.

[0028] Based on the above embodiments, the present invention may further include the following preferred technical solutions: In a preferred embodiment, in order to achieve stable power transmission with a self-locking function, in the drive assembly 203, the output end of the servo motor 2031 is fixedly connected to a worm 2032, and the middle part of the bidirectional lead screw 2034 is fixedly sleeved with a worm wheel 2036. The worm 2032 and the worm wheel 2036 mesh with each other, thereby accurately transmitting the power of the servo motor 2031 to the bidirectional lead screw 2034. As another preferred embodiment, in order to further improve the stability of the frame plate 201 during the unfolding and retraction process, the drive assembly 203 also includes a guide post 2033. The guide post 2033 is fixedly mounted on the U-shaped support plate 2035 parallel to the bidirectional lead screw 2034. One side of the frame plate 201 is slidably engaged with the guide post 2033. This structure plays a precise guiding and limiting role in the linear movement of the frame plate 201. As a preferred embodiment, in order to flexibly adjust the irradiation direction of the infrared radiation lamp 4 to adapt to the icing area of ​​the blade at different positions and angles, the device also includes a rotating seat 9. The infrared radiation lamp 4 is fixedly connected to the top of the rotating seat 9, while the rotating seat 9 itself is rotatably mounted on a designated position on the vehicle body 1. In a preferred embodiment, in order to construct a complete energy management loop, all electrical components in the device are connected by wires 8. Specifically, the DC power generated by the photovoltaic panel 202 is input into the junction box 5 through wires 8, and after being collected, it is sent to the inverter 6 through wires 8. The power processed by the inverter 6 is used to charge the energy storage battery 7 through wires 8. At the same time, the energy storage battery 7 or the inverter 6 also supplies power to the infrared radiation lamp 4 and other electrical equipment on the device, such as the servo motor 2031 and the servo motor 3051, through wires 8.

[0029] When the vehicle body 1 is de-icing the wind turbine blades, the infrared radiation lamp 4 on the top of the vehicle body 1 is turned on. After the infrared radiation lamp 4 is powered on, it emits medium and short wave infrared radiation. The energy is directly absorbed by the ice and snow layer, causing the ice and snow to heat up rapidly to above 0°C. This first melts the contact interface between the ice and snow and the object surface, forming a water film to destroy the adhesion. Then, the radiation continues to melt or vaporize the ice and snow, achieving active intervention to remove the ice and snow and prevent damage to the blades. During the operation of the infrared radiation lamp 4, the servo motor 2031 in the drive assembly 203 is turned on. The servo motor 2031 drives the worm gear 2032 at the output end to rotate, and it meshes with the worm wheel 2036 in the middle of the bidirectional lead screw 2034 rotating in the U-shaped support plate 2035, thereby driving the bidirectional lead screw 2034 to rotate. When the bidirectional lead screw 2034 rotates, the two outer frame plates 201 and the inner photovoltaic panel 202 will be subjected to different screw forces. The display is moved to accommodate the influence of the pattern. At this time, the light-absorbing mechanism 2 starts to work to absorb and store light energy. The glass layer on the surface of the photovoltaic panel 202 allows sunlight to penetrate and shine on the internal solar cells. The cells absorb photon energy, and the generated DC power is first collected through the junction box 5 and then converted into AC power by the inverter 6. The processed power can be directly supplied through the connected wire 8 for use by the infrared radiation de-icing device, while excess power can be sent to the energy storage battery 7 for storage. During the display, the frame plate 201 is restricted by the guide column 2033 to ensure smooth display. Since the infrared radiation lamp 4 is fixed on the rotating seat 9 and can be rotated through the bearing shaft, the rotation adjustment can be realized. The model of the infrared radiation lamp 4 is: IR-808-5000-M-01. It realizes the absorption of light energy, thereby improving the working endurance of the infrared radiation lamp 4. During the movement of the vehicle body 1, the swing mechanism 3 is responsible for the cleaning work. First, the servo motor 3051 in the power assembly 305 is started. The servo motor 3051 drives the connecting rod 3052 at the output end to rotate. Since the bottom end of the connecting rod 3052 is connected to the double-section rotating plate 302, and the other end of the double-section rotating plate 302 is rotatably connected to the connecting plate 303, which is rotatably connected to the bottom of the support plate 301, after the servo motor 3051 is started, it drives the double-section rotating plate 302, the connecting plate 303, and the scraper 304 at the bottom of the connecting plate 303 to swing. When the scraper 304 swings, it can sweep the ground, such as snow, bricks, and debris, to the sides or the bottom of the vehicle body 1, thereby reducing the friction of snow or debris on the wheels, and further saving the power consumption of the vehicle body 1 and improving vehicle driving safety.

Claims

1. A wind turbine blade infrared radiation active de-icing device, comprising a vehicle body (1), an infrared radiation lamp (4) mounted on the vehicle body (1), and an energy storage battery (7) and an inverter (6) supplying power to the infrared radiation lamp (4), characterized in that, The device further includes: The suction mechanism (2) is located on the top of the vehicle body (1). The suction mechanism (2) includes a frame plate (201) that can move away from or close to each other, a photovoltaic panel (202) located in the frame plate (201), and a drive assembly (203) that drives the frame plate (201) to move. The photovoltaic panel (202) is electrically connected to the energy storage battery (7) via a junction box (5) and the inverter (6). The drive assembly (203) includes a U-shaped support plate (2035), a bidirectional lead screw (2034) rotatably connected in the U-shaped support plate (2035), and a servo motor (2031) for driving the bidirectional lead screw (2034) to rotate. The frame plate (201) is threaded onto the bidirectional lead screw (2034). as well as The swing mechanism (3) is located at the front end of the vehicle body (1). The swing mechanism (3) includes a scraper (304) and a power assembly (305) for driving the scraper (304) to swing.

2. The active de-icing device for wind turbine blades using infrared radiation according to claim 1, characterized in that, The drive assembly (203) further includes a worm (2032) fixedly connected to the output end of the servo motor (2031) and a worm wheel (2036) fixedly sleeved in the middle of the bidirectional lead screw (2034). The servo motor (2031) drives the bidirectional lead screw (2034) to rotate through the meshing transmission of the worm (2032) and the worm wheel (2036).

3. The active de-icing device for wind turbine blades using infrared radiation according to claim 1, characterized in that, The drive assembly (203) further includes a guide post (2033), which is arranged parallel to the bidirectional lead screw (2034). One side of the frame plate (201) is slidably fitted onto the guide post (2033) to guide and limit the movement of the frame plate (201).

4. The active de-icing device for wind turbine blades using infrared radiation according to claim 1, characterized in that, The device also includes a rotating base (9), the infrared radiation lamp (4) is fixedly connected to the top of the rotating base (9), and the rotating base (9) is rotatably mounted on the vehicle body (1) to adjust the irradiation angle of the infrared radiation lamp (4).

5. The active de-icing device for wind turbine blades using infrared radiation according to claim 1, characterized in that, The power assembly (305) includes a servo motor (3051) and a connecting rod (3052). One end of the connecting rod (3052) is rotatably connected to the output end of the servo motor (3051), and the other end is connected to the scraper (304) through a transmission mechanism.

6. The active de-icing device for wind turbine blades using infrared radiation according to claim 5, characterized in that, The transmission mechanism includes a double-section rotating plate (302) and a connecting plate (303). The other end of the connecting rod (3052) is rotatably connected to one end of the double-section rotating plate (302), and the other end of the double-section rotating plate (302) is rotatably connected to the connecting plate (303).

7. The active de-icing device for wind turbine blades using infrared radiation according to claim 6, characterized in that, The swing mechanism (3) further includes a support plate (301) fixed to the vehicle body (1), the connecting plate (303) is rotatably connected to the bottom of the support plate (301), and the scraper (304) is fixedly connected to the bottom of the connecting plate (303).

8. The active de-icing device for wind turbine blades using infrared radiation according to claim 1, characterized in that, The photovoltaic panel (202), the junction box (5), the inverter (6), the energy storage battery (7), and the infrared radiation lamp (4) are all connected by wires (8) to form a complete power supply and charging circuit.

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