Wind power high-altitude multidirectional wind speed measuring device

Abstract

The utility model relates to wind speed measuring device field discloses a kind of wind power high altitude multidirectional wind speed measuring device, including mounting bracket, the device further includes: speed measuring unit, including speed measuring motor, the transmission connection of the input end of speed measuring motor with pivot, and at least three wind cups fixed in the top of pivot;Temperature detector fixed in the top of mounting bracket;Two positioning rods slidingly connected in the cooperation of mounting bracket.This utility model, when detecting that ambient temperature is lower than set temperature by temperature detector, heating block heats, heat is transferred to the gap between sponge and pivot of speed measuring motor, and cooperate pivot rotation, because centrifugal force, water that sponge is adsorbed is thrown out, to realize the gap between pivot and speed measuring motor is frozen, and cooperate pivot, can effectively prevent rainwater and water produced by top wind cup melting directly falling on sponge to ensure that the gap of connection keeps dry state, avoid freezing.

Description

Technical Field

[0001] This utility model relates to the field of wind speed measuring devices, and in particular to a wind power high-altitude multi-directional wind speed measuring device. Background Technology

[0002] Wind power is a form of renewable energy that uses wind energy to convert into electricity. It is characterized by being green, environmentally friendly, and sustainable. Wind power generation converts the kinetic energy of wind into mechanical energy through wind turbines, and then into electrical energy through generators. With technological advancements, the cost of wind power has been decreasing year by year, and its efficiency has been continuously improving. It can not only reduce dependence on fossil fuels, but also effectively reduce greenhouse gas emissions and promote the transformation of the global energy structure. The development of wind power is of great significance to promoting the renewable energy industry and addressing climate change.

[0003] Wind speed measuring devices are used to measure the speed of airflow and are widely used in meteorology, aviation, oceanography, environmental monitoring and other fields. In some large wind farms, such wind speed measuring devices are used very frequently. Common wind speed measurement principles include mechanical, electronic and thermal sensors. Mechanical devices measure wind speed by rotating the impeller, electronic devices use ultrasonic or laser technology for non-contact measurement, and thermal sensors determine wind speed by temperature difference. These devices have the advantages of high accuracy, fast response and strong stability, and can monitor wind speed changes in real time, providing data support for scientific research and engineering practice.

[0004] Mechanical wind speed measuring devices utilize a cup structure, consisting of three or four hemispherical or conical cups mounted on a vertical axis. The cups rotate under wind force, with the rotation speed proportional to the wind speed. By measuring the rotational speed of the cups, the wind speed can be calculated. This structure is simple and low-cost. However, in winter, the connection between the rotating shaft and the outer casing is prone to freezing due to accumulated water in windless environments, preventing the rotating shaft from rotating when there is wind and affecting the speed measurement results. Therefore, a high-altitude multi-directional wind speed measuring device for wind power is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a wind power high-altitude multi-directional wind speed measuring device, which aims to improve the problem that in winter, the connection between the rotating shaft and the outer shell is prone to freezing due to water accumulation in the early stage in windless environment, so that the rotating shaft cannot rotate when there is wind, thus affecting the speed measuring effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-altitude multi-directional wind speed measuring device for wind power, including a mounting frame, and the device further includes:

[0008] The speed measuring unit includes a speed measuring motor, a rotating shaft that is drivenly connected to the input end of the speed measuring motor, and at least three wind cups fixed to the top of the rotating shaft;

[0009] A temperature sensor fixed to the top of the mounting bracket;

[0010] Two positioning rods are slidably connected to the top of the mounting bracket, and the positioning rods are fixed to the bottom of the speed measuring motor;

[0011] Antifreeze components are provided around the rotating shaft;

[0012] And a fixing component for locking the speed measuring unit;

[0013] The antifreeze component includes a heating block located on top of the speed measuring motor, a protective cover fixed to the rotating shaft, and a sponge located between the protective cover and the heating block.

[0014] As a further description of the above technical solution:

[0015] The fixing component includes a hoop for holding the speed measuring motor and the mounting bracket, and the inner side of the hoop is provided with a rubber ring for cushioning and anti-slip function.

[0016] As a further description of the above technical solution:

[0017] The fixing assembly further includes a locking mechanism for tightening the hoop, the locking mechanism comprising:

[0018] A pull tab is fixedly connected to one end of the hoop, and the pull tab has a through hole;

[0019] A sleeve fixed to the other end of the hoop;

[0020] A stop bar slidably disposed within the housing and passing through the through hole, and a spring disposed within the housing.

[0021] As a further description of the above technical solution:

[0022] A sliding plate is fixedly connected to the stop bar. The sliding plate is slidably disposed inside the housing, and one end of the spring abuts against the sliding plate.

[0023] As a further description of the above technical solution:

[0024] The end of the stop bar away from the through hole extends out of the housing and is connected to a pull ring for easy manual operation by the user.

[0025] As a further description of the above technical solution:

[0026] The end of the pull tab is inserted into the housing.

[0027] As a further description of the above technical solution:

[0028] The number of wind cups is three, and the three wind cups are evenly distributed at equal angular intervals with the axis of the rotating shaft as the center.

[0029] As a further description of the above technical solution:

[0030] The spring is fitted inside the stop rod.

[0031] This utility model has the following beneficial effects:

[0032] 1. In this utility model, when the ambient temperature is detected by the thermometer to be lower than the set temperature, the heating block heats up and transfers heat to the gap between the sponge and the speed measuring motor and the rotating shaft. With the rotation of the rotating shaft, the centrifugal force throws out the water absorbed by the sponge, thereby preventing the gap between the rotating shaft and the speed measuring motor from freezing. In addition, with the rotating shaft, it can effectively prevent rainwater and water generated by melting at the top wind cup from falling directly onto the sponge, ensuring that the connection gap remains dry and is not frozen.

[0033] 2. In this utility model, by pulling the stop bar, the sliding plate is compressed and the pull plate is inserted into the housing and tightened, so that the hoop and the rubber ring tighten the mounting frame and the speed measuring motor. Then, the stop bar is released and inserted into the through hole, which realizes the quick disassembly and assembly of the speed measuring motor, thereby reducing the time that workers need to stay when climbing to disassemble and maintain this device, and reducing safety hazards. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of a wind power high-altitude multi-directional wind speed measuring device proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the temperature sensor of a wind power high-altitude multi-directional wind speed measuring device proposed in this utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the speed measuring motor of the high-altitude multi-directional wind speed measuring device for wind power proposed in this utility model;

[0037] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0038] Figure 5 This is a schematic diagram of the hoop structure of a wind power high-altitude multi-directional wind speed measuring device proposed in this utility model;

[0039] Figure 6 This is a schematic diagram of the structure of the pull tab of the high-altitude multi-directional wind speed measuring device for wind power proposed in this utility model;

[0040] Figure 7 This is a schematic diagram of the baffle of a wind power high-altitude multi-directional wind speed measuring device proposed in this utility model.

[0041] Legend:

[0042] 1. Mounting bracket; 2. Positioning rod; 3. Speed ​​measuring motor; 4. Rotating shaft; 5. Heating block; 6. Sponge; 7. Protective cover; 8. Hoop; 9. Rubber ring; 10. Pull tab; 11. Through hole; 12. Housing; 13. Stop bar; 14. Slide plate; 15. Spring; 16. Pull ring; 17. Air cup; 18. Temperature sensor. Detailed Implementation

[0043] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0044] Reference Figure 1 - Figure 3 One embodiment of this utility model provides: a wind power high-altitude multi-directional wind speed measuring device, including a mounting frame 1, and the device further includes:

[0045] The speed measuring unit includes a speed measuring motor 3, a rotating shaft 4 that is connected to the input end of the speed measuring motor 3, and at least three wind cups 17 fixed to the top of the rotating shaft 4.

[0046] Thermometer 18 is fixed to the top of mounting bracket 1;

[0047] Two positioning rods 2 are slidably connected to the top of the mounting bracket 1, and the positioning rods 2 are fixed to the bottom of the speed measuring motor 3;

[0048] Anti-freeze components are installed around the pivot 4;

[0049] And a fixing component for locking the speed measuring unit;

[0050] The antifreeze assembly includes a heating block 5 on top of the tachometer motor 3, a protective cover 7 fixed to the rotating shaft 4, and a sponge 6 between the protective cover 7 and the heating block 5. The fixing assembly includes a clamp 8 for holding the tachometer motor 3 and the mounting bracket 1 tightly. The inner side of the clamp 8 is provided with a rubber ring 9 for cushioning and anti-slip purposes. The mounting bracket 1 is used to install and support the wind speed measuring device and the thermometer 18. The positioning rod 2 is used to position the tachometer motor 3 to prevent it from shaking after installation. The tachometer motor 3 is used to detect wind speed by the current generated during rotation. The model of the tachometer motor 3 is Buehler DCMotor4282. The wiring of the tachometer motor 3 is concealed through the hollow part inside the mounting bracket 1. The rotating shaft 4 and the tachometer... The shaft in the middle of motor 3 is fixed coaxially. The wind cup 17 is used to match the wind speed to make the rotating shaft 4 rotate. The wind cup 17 can work normally regardless of the direction of the wind. The heating block 5 is electrically connected to the controller and the adjacent temperature sensor 18. When the ambient temperature is detected to be lower than the set value, the controller will control the heating block 5 to start heating. The heating block 5 is heated by electric heating wire. The protective cover 7 is used to prevent rainwater from falling directly onto the sponge 6. The sponge 6 is used to absorb the water between the rotating shaft 4 and the speed measuring motor 3 to prevent ice from forming between them. There are three wind cups 17. These three wind cups 17 are evenly distributed at equal angles around the axis of the rotating shaft 4 to keep the center of gravity of the rotating shaft 4 consistent and avoid vibration caused by the center of gravity shift.

[0051] Reference Figure 5 - Figure 7 The fixing assembly also includes a locking mechanism for tightening the hoop 8, the locking mechanism comprising:

[0052] A pull tab 10 is fixedly connected to one end of the hoop 8, and a through hole 11 is provided on the pull tab 10;

[0053] The sleeve 12 is fixed to the other end of the hoop 8;

[0054] A stop bar 13 is slidably disposed within the housing 12 and passing through the through hole 11; and a spring 15 is disposed within the housing 12. A slide plate 14 is fixedly connected to the stop bar 13, the slide plate 14 is slidably disposed within the housing 12, and one end of the spring 15 abuts against the slide plate 14. The end of the stop bar 13 away from the through hole 11 protrudes from the housing 12 and is connected to a pull ring 16 for easy manual operation by the user. The end of the pull tab 10 can be inserted into the housing 12. A clamp ring 8 is used to fix the tachometer motor 3 to the mounting bracket 1. A rubber ring 9 is used to increase the friction between the clamp ring 8 and the mounting bracket 1 and the tachometer motor 3, and the rubber ring 9 is self-adhesive. The body is elastic, which can more firmly fix the speed measuring motor 3 on the mounting bracket 1. The pull tab 10 is used to pass through the inside of the housing 12. The through hole 11 is used to cooperate with the stop rod 13 so that the hoop 8 fixes the speed measuring motor 3. The housing 12 is used to connect and protect the internal parts. The stop rod 13 is used to pass through the through hole 11 to fix the speed measuring motor 3. The slide plate 14 is used to compress the spring 15 and withstand the thrust from the spring 15. The spring 15 is used to push the slide plate 14 and drive the stop rod 13 to return to its original position. The inside of the spring 15 is fitted with the outside of the stop rod 13 that passes through the housing 12 and the through hole 11 to keep the spring 15 stable.

[0055] Working Principle: When using this device for wind speed measurement in a large wind farm, multiple devices need to be used in conjunction to form a matrix, which can detect the wind speed of the wind power plant from all directions. First, fix the speed measuring device on the top of the mounting frame 1. The operator climbs to the top of the mounting frame 1 using a ladder and aligns the positioning rod 2 with the mounting hole on the mounting frame 1. The positioning rod 2 is then slid into the mounting frame 1. Next, the clamp 8 is placed between the mounting frame 1 and the speed measuring motor 3, and the pull ring 16 is pulled, causing the sliding plate 14 to compress the spring 15, allowing the stop rod 13 to retract into the inner side of the housing 12. Then, the pull plate 10 is passed through the housing 12 and pulled tightly. At this time, the clamp 8 will squeeze the rubber. Rubber ring 9 is used to ensure that it is tightly attached between the mounting bracket 1 and the tachometer motor 3 until the through hole 11 is aligned with the stop bar 13. Finally, the pull ring 16 is released, and the spring 15 will immediately push the slide plate 14, causing the stop bar 13 to return to the through hole 11, thus completing the installation of the tachometer motor 3. The operation is convenient and labor-saving, and the disassembly and assembly are quick, effectively saving time and facilitating maintenance. This reduces the time that workers spend climbing and staying at heights, and lowers the operational risks. At this point, it can be used normally. The wind blows the wind cup 17, causing the rotating shaft 4 to rotate, thereby making the tachometer motor 3 work and generate current. The current is then converted into a digital signal by the digital converter and received by the terminal equipment of the wind farm. Finally, the current wind speed is detected based on the current magnitude. In winter, the heating block 5 and the thermometer 18 are electrically connected via a controller. When the thermometer 18 detects that the ambient temperature is lower than the set value, the controller will activate the electric heating wire inside the heating block 5, causing the heating block 5 to heat up. At the same time, the heat will be transferred to the connection between the sponge 6 and the speed measuring motor 3 and the rotating shaft 4, thus preventing the connection between the speed measuring motor 3 and the rotating shaft 4 from freezing and affecting the normal rotation of the rotating shaft 4. During rotation, the water adsorbed inside the sponge 6 will be automatically spun out by centrifugal force. In conjunction with the protective cover 7, rainwater is prevented from falling directly into the sponge 6, keeping the gaps dry. The double protection of electric heating and sponge 6 adsorption effectively prevents the connection between the rotating shaft 4 and the speed measuring motor 3 from freezing, thus not affecting the detection effect.

Claims

1. A wind power high-altitude multi-directional wind speed measuring device, comprising a mounting frame (1), characterized in that, The device also includes: The speed measuring unit includes a speed measuring motor (3), a rotating shaft (4) that is connected to the input end of the speed measuring motor (3), and at least three wind cups (17) fixed to the top of the rotating shaft (4). The thermometer (18) is fixed to the top of the mounting bracket (1); Two positioning rods (2) are slidably connected to the top of the mounting bracket (1), and the positioning rods (2) are fixed to the bottom of the speed measuring motor (3); Antifreeze components are provided around the rotating shaft (4); And a fixing component for locking the speed measuring unit; The antifreeze component includes a heating block (5) on top of the speed measuring motor (3), a protective cover (7) fixed to the rotating shaft (4), and a sponge (6) between the protective cover (7) and the heating block (5).

2. The wind power high-altitude multi-directional wind speed measuring device according to claim 1, characterized in that: The fixing component includes a hoop (8) for holding the speed measuring motor (3) and the mounting bracket (1), and the inner side of the hoop (8) is provided with a rubber ring (9) for buffering and anti-slip function.

3. The wind power high-altitude multi-directional wind speed measuring device according to claim 2, characterized in that: The fixing assembly further includes a locking mechanism for tightening the hoop (8), the locking mechanism comprising: A pull tab (10) is fixedly connected to one end of the hoop (8), and a through hole (11) is provided on the pull tab (10). A sleeve (12) is fixed to the other end of the hoop (8); A stop bar (13) slidably disposed within the housing (12) and passing through the through hole (11), and a spring (15) disposed within the housing (12).

4. The wind power high-altitude multi-directional wind speed measuring device according to claim 3, characterized in that: A slide plate (14) is fixedly connected to the stop bar (13). The slide plate (14) is slidably disposed inside the housing (12), and one end of the spring (15) abuts against the slide plate (14).

5. A wind power high-altitude multi-directional wind speed measuring device according to claim 3, characterized in that: The end of the stop bar (13) away from the through hole (11) extends out of the housing (12) and is connected to a pull ring (16) for easy manual operation by the user.

6. A wind power high-altitude multi-directional wind speed measuring device according to claim 3, characterized in that: The end of the pull tab (10) is inserted into the housing (12).

7. A wind power high-altitude multi-directional wind speed measuring device according to claim 1, characterized in that: The number of wind cups (17) is three, and the three wind cups (17) are evenly distributed at equal angular intervals with the axis of the rotating shaft (4) as the center.

8. A wind power high-altitude multi-directional wind speed measuring device according to claim 3, characterized in that: The spring (15) is fitted inside the stop bar (13) outside.

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