Blade with deicing structure
By designing a wind turbine blade with scraper and hot air heating functions, the problem of blade icing in low-temperature environments is solved, and the effect of automatic deicing and energy consumption reduction is achieved.
Patent Information
- Application Number
- CN202420690291.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The blades of existing wind turbine units are prone to freezing in low temperature environments, resulting in reduced power generation efficiency and safety hazards, and the existing deicing methods are relatively high in energy consumption.
A blade with a deicing structure is designed. The reciprocating screw and slider are driven to move the blade by rotating the blade, and the scraper is driven to wipe out the rain and snow on the surface of the blade, and the temperature is monitored by the sensor. When the temperature is lower than the set temperature, a hot air fan is used to heat the blade to improve the deicing effect.
It realizes automatic scraping of rain and snow on the blades in low temperature environments, avoiding the formation of ice, low energy consumption, and improving the deicing effect through heating.
Smart Images
Figure CN222576810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of blades of wind power generator sets, in particular to a blade with a deicing structure. Background Art
[0002] Wind turbine blades are an important part of wind turbines. Their main function is to convert wind energy into mechanical energy, and then into electrical energy through the generator. In winter, when the temperature is low, the humidity is high, and the wind speed is moderate, ice easily forms on the blade surface, which reduces the efficiency of wind power generation and even creates safety hazards. Therefore, it is necessary to de-ice the wind turbine blades.
[0003] Currently available blades with de-icing structures usually have pre-buried electric heating cables inside the blades or use electric heating films applied to the surface. When powered on, they generate heat to melt the ice. However, this method consumes a lot of energy when de-icing.
[0004] Therefore, in order to solve the above-mentioned problems, a blade with a deicing structure which can automatically scrape off the rain and snow attached to the surface of the rotating blade to avoid the formation of ice in a low-temperature environment and has low energy consumption has been developed. Utility Model Content
[0005] In order to overcome the shortcoming of the existing device in deicing that the energy consumption is high, the utility model provides a blade with a deicing structure which can automatically scrape off the rain and snow attached to the surface of the rotating blade to avoid the formation of ice layer in a low temperature environment and has low energy consumption.
[0006] Technical solution: A blade with a deicing structure, including a support rod, a rotating blade, a bevel gear set, a support frame, a reciprocating screw, a slider, a first guide rod, a first scraper, a first telescopic spring, a second scraper, a second guide rod and a second telescopic spring, a rotating blade is rotatably connected to the right side of the upper part of the support rod, a plurality of support frames are connected to the rotating blade, the support frames are all rotatably connected to the reciprocating screws, a bevel gear set is connected between the reciprocating screw and the support rod, a slider is threadedly connected to the reciprocating screw, the sliders are all slidably connected to adjacent support frames, a plurality of first guide rods are connected to the sliders, the adjacent first guide rods are all slidably connected to the first scrapers, and the first guide rods are all connected to the adjacent first scrapers There is a first telescopic spring, and multiple second guide rods are connected to the right side of the first scraper. Second scrapers are slidably connected between adjacent second guide rods, and second guide rods are connected to adjacent side scrapers with a second telescopic spring. The rotating blades rotate to drive the reciprocating screw rod to rotate on the support frame through the bevel gear set. Under the guiding action of the support frame, the reciprocating screw rod rotates to drive the slider to move through the thread. The movement of the slider drives the first scraper and the second scraper to move through the first guide rod and the second guide rod to scrape rain and snow on the rotating blades. Under the guiding action of the first guide rod and the second guide rod, the first scraper and the second scraper are always in contact with the rotating blades through the first telescopic spring and the second telescopic spring.
[0007] In addition, it is particularly preferred that a stopper is provided on the second guide rod to facilitate limiting the position of the second scraper.
[0008] In addition, it is particularly preferred that both the first scraper and the second scraper are provided with elastic blocks to avoid wear on the rotating blades.
[0009] In addition, it is particularly preferred that the second scrapers are arranged symmetrically with the adjacent first scrapers, so as to be able to de-ice the front and rear sides of the rotating blades at the same time.
[0010] In addition, it is particularly preferred that the bevel gear set includes a fixed bevel gear and a rotating bevel gear, the fixed bevel gear is connected to the right side of the upper part of the support rod, and the reciprocating screw is connected to the rotating bevel gear, and the rotating bevel gears are meshed with the fixed bevel gear. The rotation of the rotating blade drives the rotating bevel gear to move through the support frame and the reciprocating screw, thereby causing the rotating bevel gear to rotate, and then driving the reciprocating screw to rotate on the support frame.
[0011] In addition, it is particularly preferred that it also includes a fixed frame, a sensor and a hot air blower, the fixed frame is connected to the support rod, the sensor is connected to the left part of the fixed frame, and the hot air blower is connected to the right part of the fixed frame, the hot air blower is electrically connected to the sensor, and the external temperature is monitored by the sensor. When the external temperature is detected to be lower than the set temperature, the hot air blower is controlled to deliver hot air to the rotating blades, thereby heating them and further improving the de-icing effect.
[0012] The beneficial effects are as follows: 1. The utility model drives the reciprocating screw to rotate by rotating the rotating blades, and the rotation of the reciprocating screw drives the slider to move through the thread. The movement of the slider scrapes the rain and snow on the rotating blades through the first scraper and the second scraper. The rain and snow attached to the surface of the rotating blades can be automatically scraped off to avoid the formation of ice in a low temperature environment, and the energy consumption is low.
[0013] 2. The utility model monitors the outside temperature through a sensor. When the outside temperature is detected to be lower than the set temperature, the hot air blower is controlled to deliver hot air to the rotating blades, which can heat the rotating blades and further improve the deicing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0015] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the scraping mechanism of the utility model.
[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the heating mechanism of the utility model.
[0017] Among them, the above-mentioned drawings include the following figure marks: 1. support rod, 2. rotating blade, 3. fixed bevel gear, 31. rotating bevel gear, 4. support frame, 5. reciprocating screw, 6. slider, 7. first guide rod, 8. first scraper, 9. first telescopic spring, 10. second scraper, 11. second guide rod, 12. second telescopic spring, 13. fixed frame, 14. sensor, 15. hot air blower. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] A blade with a deicing structure, such as Figure 1-Figure 3As shown, it includes a support rod 1, a rotating blade 2, a bevel gear set, a support frame 4, a reciprocating screw rod 5, a slider 6, a first guide rod 7, a first scraper 8, a first telescopic spring 9, a second scraper 10, a second guide rod 11, a second telescopic spring 12, a fixed frame 13, a sensor 14 and a hot air blower 15. The upper right side of the support rod 1 is rotatably connected to the rotating blade 2, and three support frames 4 are connected to the rotating blade 2. The support frames 4 are all rotatably connected to the reciprocating screw rod 5. A bevel gear set is connected between the reciprocating screw rod 5 and the support rod 1. The bevel gear set includes a fixed bevel gear 3 and a rotating bevel gear 31. The upper right side of the support rod 1 is connected to the fixed bevel gear 3, and the reciprocating screw rod 5 is connected to the rotating bevel gear 31. The rotating bevel gear 31 is connected to the fixed bevel gear 3. The reciprocating screw rods 5 are meshed with each other, and the sliders 6 are all threadedly connected to the adjacent support frames 4. Two first guide rods 7 are connected to the sliders 6. First scrapers 8 are slidably connected between adjacent first guide rods 7. First telescopic springs 9 are connected between the first guide rods 7 and adjacent first scrapers 8. Two second guide rods 11 are connected to the right side of the first scraper 8. Second scrapers 10 are slidably connected between adjacent second guide rods 11. Second telescopic springs 12 are connected between the second guide rods 11 and adjacent side scrapers. A fixed frame 13 is connected to the support rod 1. A sensor 14 is connected to the left part of the fixed frame 13, and a hot air blower 15 is connected to the right part of the fixed frame 13. The hot air blower 15 is electrically connected to the sensor 14.
[0020] When the utility model is in use, it is necessary to install the utility model in the operation area, and the wind force drives the rotating blade 2 to rotate. The rotating blade 2 rotates and drives the rotating bevel gear 31 to move through the support frame 4 and the reciprocating screw 5, so that the rotating bevel gear 31 rotates, thereby driving the reciprocating screw 5 to rotate on the support frame 4. Under the guiding action of the support frame 4, the reciprocating screw 5 rotates and drives the slider 6 to move through the thread. The slider 6 moves through the first guide rod 7 and the second guide rod 11 to drive the first scraper 8 and the second scraper 10 to move to scrape the rain and snow on the rotating blade 2, thereby avoiding the formation of an ice layer on the surface of the rotating blade 2 under low temperature conditions. Under the guiding action of the first guide rod 7 and the second guide rod 11, the first scraper 8 and the second scraper 10 are driven by the first telescopic spring 9 and the second telescopic spring 12 to always contact with the rotating blade 2, thereby improving the scraping effect. The outside temperature can also be monitored by the sensor 14. When it is detected that the outside temperature is lower than the set temperature, the hot air blower 15 is controlled to deliver hot air to the rotating blade 2, thereby heating it, thereby further improving the deicing effect.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A blade with a deicing structure, characterized in that: The invention comprises a support rod (1), a rotating blade (2), a bevel gear set, a support frame (4), a reciprocating screw rod (5), a slider (6), a first guide rod (7), a first scraper (8), a first telescopic spring (9), a second scraper (10), a second guide rod (11) and a second telescopic spring (12); the right side of the upper part of the support rod (1) is rotatably connected to the rotating blade (2); a plurality of support frames (4) are connected to the rotating blade (2); the support frames (4) are all rotatably connected to the reciprocating screw rod (5); a bevel gear set is connected between the reciprocating screw rod (5) and the support rod (1); the reciprocating screw rod (5) is threaded A slider (6) is connected, and the sliders (6) are all slidably connected to adjacent support frames (4). A plurality of first guide rods (7) are connected to the sliders (6), and first scrapers (8) are slidably connected between adjacent first guide rods (7). A first telescopic spring (9) is connected between the first guide rods (7) and adjacent first scrapers (8). A plurality of second guide rods (11) are connected to the right side of the first scraper (8), and second scrapers (10) are slidably connected between adjacent second guide rods (11). A second telescopic spring (12) is connected between the second guide rods (11) and the adjacent side scraper.
2. A blade with a deicing structure according to claim 1, characterized in that: The second guide rods (11) are each provided with a stopper.
3. A blade with a deicing structure according to claim 2, characterized in that: Both the first scraper (8) and the second scraper (10) are provided with elastic blocks.
4. A blade with a deicing structure according to claim 3, characterized in that: The second scrapers (10) are arranged symmetrically with respect to the adjacent first scrapers (8).
5. A blade with a deicing structure according to claim 4, characterized in that: The bevel gear set comprises a fixed bevel gear (3) and a rotating bevel gear (31); the fixed bevel gear (3) is connected to the right side of the upper part of the support rod (1); the reciprocating screw rod (5) is connected to the rotating bevel gear (31); and the rotating bevel gear (31) is meshed with the fixed bevel gear (3).
6. The blade with deicing structure according to claim 5, characterized in that: Also includes fixed The support rod (1) is connected to the fixing frame (13), the sensor (14) and the hot air blower (15). The left part of the fixing frame (13) is connected to a sensor (14), and the right part of the fixing frame (13) is connected to a hot air blower (15). The hot air blower (15) is electrically connected to the sensor (14).