Zero correction device for wind indicator
Through the correction method combining a compass and a laser transmitter, the problems of large errors and high safety risks in the zero-position correction of the wind vane are solved, higher-precision correction is achieved, and the efficiency of wind energy capture and power generation is improved.
Patent Information
- Application Number
- CN202422884401.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In the existing technology, the zero position correction of the wind vane relies on manual detection, which has large errors, high safety risks and low accuracy, resulting in reduced wind energy capture by the unit and lower power generation.
A correction method combining a compass and a laser transmitter is adopted. The wind vane is fixed by a base and a fixing part. The compass correction and laser correction are compared and marked with each other to improve the correction accuracy.
The calibration error is reduced, the accuracy of wind vane zero position correction is improved, the accuracy of wind energy capture by the unit is ensured, and safety risks are reduced.
Smart Images
Figure CN223346884U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of wind turbine blade assembly, and more specifically, to a wind vane zero position correction device. Background Art
[0002] Wind vanes are currently available in mechanical and ultrasonic versions. Both have a reference point pointing toward the north pole. During installation, the reference point should be aligned directly toward the turbine tail and parallel to the centerline of the nacelle, as specified by the wind turbine manufacturer. Because there's no centering reference in the nacelle during installation, zeroing the wind vane requires manual inspection and adjustment.
[0003] In the prior art, during the maintenance and installation of wind vanes, the zero position correction of the wind vane is usually carried out by observation, relying on the intuitive feeling of the maintenance personnel to correct the direction of the wind vane N scale to be parallel to the direction of the head. However, due to the difference in each person's perception, there are errors in the correction. Simply relying on the naked eye of the wind farm operation and maintenance personnel for correction, due to the different levels and experience of the operation and maintenance personnel, the deviation range of the correction method is large, so that the zero direction collected by the sensor is not the actual direction of the head, which causes the unit to be inaccurate in wind direction, directly resulting in a decrease in wind energy captured by the unit and a decrease in the power generation of the unit, making it difficult to meet the needs of optimal operation of the wind turbine.
[0004] In addition, manual inspection and adjustment are greatly affected by weather conditions and environmental factors, and there are great safety risks. The wind vane is generally installed at the tail of the cabin to reduce the impact of the tail flow field after the blades rotate. The operator needs to stand between the wind vane and the impeller and cannot stand in a straight line, which increases the difficulty of the operation and greatly affects the correction accuracy.
[0005] Therefore, how to improve the accuracy of wind vane correction has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0006] In view of this, the object of the present application is to provide a wind vane zero position correction device to improve the accuracy of wind vane correction.
[0007] To achieve the above objectives, this application provides the following technical solutions:
[0008] A wind vane zero position correction device, comprising:
[0009] A base, the base comprising a base body and a fixing member for fixing a weather vane, the fixing member being movably disposed on the base body, and the base body being provided with an N-pole mark and a tail mark slot for fixing a tail mark of the weather vane, the tail mark slot being collinear with the N-pole mark;
[0010] The calibration component includes a compass and a laser emitter. The compass is fixed on the base body, and the N pole mark on the base body is aligned with the N pole of the compass. The laser emitter is rotatably arranged on one side of the base body.
[0011] Optionally, in the above-mentioned wind vane zero position correction device, the fixing member includes an arc-shaped groove provided on the base body and a clamp cooperating with the arc-shaped groove, and the clamp and the arc-shaped groove enclose a mounting cavity for fixing the wind vane.
[0012] Optionally, in the above-mentioned wind vane zero position correction device, one end of the clamp is hinged to the base body, and the other end of the clamp is connected to the base body via a fastener to tightly hold the wind vane.
[0013] Optionally, in the above-mentioned wind vane zero position correction device, an offset reference mark is further provided on the base body, and the offset reference mark is used to correct the installation reference of the wind vane.
[0014] Optionally, in the above-mentioned wind vane zero position correction device, the base body has two sides arranged opposite to each other, and the laser emitter is provided on at least one side of the base body.
[0015] Optionally, in the above-mentioned wind vane zero position correction device, the laser emitter is mounted on at least one side of the base body via a rotating seat, and the rotating seat is used to adjust the angle of the laser emitter.
[0016] Optionally, in the above-mentioned wind vane zero position correction device, the rotating seat includes a clamp for fixing the laser emitter and an adjusting bolt arranged on the clamp, and at least one side of the base body is provided with a threaded hole that cooperates with the adjusting bolt.
[0017] Optionally, in the above-mentioned wind vane zero position correction device, the compass is located on the upper surface of the base body, and the N pole mark and the tail mark slot are respectively located on both sides of the compass.
[0018] Optionally, in the above-mentioned wind vane zero position correction device, the upper surface of the base body is provided with a mounting groove for mounting the compass, and the compass is embedded in the mounting groove.
[0019] Optionally, in the above-mentioned wind vane zero position correction device, the tail mark slot extends from the edge of the base body toward the installation slot.
[0020] The wind vane zero-position correction device provided by the present application can be assembled by fixing the tail mark of the wind vane in the tail mark slot, aligning the wind vane with the N-pole mark on the base body, and fixing the wind vane with a fixing member provided on the base body. During use, the wind vane can be corrected using a compass, and at the same time, it can be corrected using laser light emitted by a laser transmitter. The two calibration methods can be compared and marked to reduce errors and improve the accuracy of wind vane correction. As can be seen from the above examples, the wind vane zero-position correction device provided by the present application can adopt two different methods: compass correction and laser correction, and can be compared and marked to reduce errors and improve the accuracy of wind vane correction.
[0021] The technical features mentioned above, the technical features described below, and the technical features shown individually in the accompanying drawings may be combined arbitrarily, as long as the combined technical features do not conflict with each other. All possible feature combinations are technical contents explicitly described in this document. Any of the multiple sub-features included in the same statement can be applied independently and does not necessarily have to be applied in conjunction with the other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.
[0023] Figure 1 A schematic diagram of the structure of a correction device provided in an embodiment of the present application;
[0024] Figure 2 Schematic diagram of the assembly of the correction device and wind vane provided in an embodiment of the present application.
[0025] Among them, 100 is the base, 101 is the base body, 1011 is the N pole mark, 1012 is the tail card slot, 1013 is the offset reference mark, 102 is the fixing part, 1021 is the arc groove, 1022 is the clamp, and 1023 is the installation cavity;
[0026] 200 is a calibration component, 201 is a compass, 202 is a laser transmitter, 203 is a rotating base, 2031 is a clamp, and 2032 is an adjusting bolt;
[0027] 300 is the wind vane and 301 is the tail mark. DETAILED DESCRIPTION
[0028] The core of this application is to provide a wind vane zero position correction device to improve the accuracy of wind vane correction.
[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0030] During the maintenance and installation of wind vanes, the zero position correction of the wind vane is usually carried out by observation. The direction of the wind vane N scale is corrected to be parallel to the direction of the head by the intuitive feeling of the maintenance personnel. However, due to the difference in each person's perception, there are errors in the correction. If the correction is solely based on the naked eye of the wind farm operation and maintenance personnel, the deviation range of the correction method is large due to the different levels and experience of the operation and maintenance personnel. As a result, the zero direction collected by the sensor is not the actual direction of the head, which causes the unit to be inaccurate in wind direction, which directly leads to a decrease in wind energy captured by the unit and a decrease in the power generation of the unit, making it difficult to meet the needs of optimal operation of the wind turbine.
[0031] In addition, manual inspection and adjustment are greatly affected by weather conditions and environmental factors, and there are great safety risks. The wind vane is generally installed at the tail of the cabin to reduce the impact of the tail flow field after the blades rotate. The operator needs to stand between the wind vane and the impeller and cannot stand in a straight line, which increases the difficulty of the operation and greatly affects the correction accuracy.
[0032] For this reason, Figure 1 As shown, an embodiment of the present application discloses a wind vane zero position correction device, including a base 100 and a correction component 200. It can reduce errors and improve the accuracy of the wind vane 300 correction by using two different methods: compass 201 correction and laser correction, and performing mutual comparison and marking.
[0033] The following will be combined Figure 1 and Figure 2 The wind vane zero position correction device disclosed in the embodiment of the present application is specifically explained and illustrated.
[0034] Among them, Figure 1 and Figure 2As shown, the base 100 includes a base body 101 and a fixing member 102 for fixing the wind vane 300. The fixing member 102 is movably disposed on the base body 101 to secure the wind vane zero position correction device to the wind vane 300. Furthermore, the base body 101 is provided with an N-pole mark 1011 and a tail mark slot 1012 for fixing the tail mark 301 of the wind vane 300. The tail mark slot 1012 is collinear with the N-pole mark 1011. During installation, the wind vane zero position correction device is assembled by fixing the tail mark 301 of the wind vane 300 in the tail mark slot 1012, aligning the wind vane 300 with the N-pole mark 1011 on the base body 101, and securing the wind vane 300 using the fixing member 102 disposed on the base body 101. Furthermore, a calibration assembly 200 is provided on the base body 101 to calibrate the zero position of the wind vane 300. Specifically, the calibration assembly 200 may include a compass 201 and a laser emitter 202. The compass 201 is fixed to the upper surface of the base body 101, and the north pole mark 1011 on the base body 101 is aligned with the north pole of the compass 201. To meet the design requirements of the wind turbine's nacelle housing, the laser emitter 202 is rotatably mounted on one side of the base body 101 to facilitate zero position calibration of the wind vane 300. When calibrating the zero position of the wind vane 300, the compass 201 can be used to calibrate the wind vane 300, while the laser emitted by the laser emitter 202 can also be used for calibration. These two calibrations can be compared and marked, reducing errors and improving the accuracy of the calibration of the wind vane 300. It should be noted that when calibrating the zero position of the wind vane 300, the compass 201 may be interfered with by the external environment, resulting in correction deviation. At this time, when there is an obvious reference on the cabin of the wind turbine, the laser transmitter 202 can be used for laser calibration to avoid the correction deviation of the compass 201 caused by external interference.
[0035] In some embodiments, as Figure 1 and Figure 2As shown, the base body 101 is also provided with an offset reference mark 1013, which allows the installation reference of the wind vane 300 to be calibrated using the offset reference mark 1013. For ease of use, the offset reference mark 1013 may be provided on both sides of the base body 101. If a calibration reference is provided on the wind turbine nacelle, the offset reference mark 1013 on the base body 101 can be used to directly perform laser calibration using the laser emitter 202. In this embodiment, the laser emitter 202 can be a laser pointer that emits a cross-shaped laser. The horizontal laser can be aligned with a horizontal reference, such as a skylight, the edge of the nacelle, or two horizontal points. The vertical laser can be aligned with a vertical reference, such as a handrail or two vertical points, or the laser emitter 202 can be aligned parallel to the vertical reference. After the wind vane 300 is zeroed, it is secured using the fixing member 102. The center point of the cross-shaped laser is marked on the nacelle housing. This reference point can be directly found during subsequent regular calibrations.
[0036] In some embodiments, as Figure 1 and Figure 2 As shown, the compass 201 is located on the upper surface of the base body 101, with the N pole mark 1011 and the tail mark slot 1012 located on either side of the compass 201. To facilitate installation of the compass 201, a mounting slot for the compass 201 is provided on the upper surface of the base body 101. When zeroing the wind vane 300, the compass 201 can be inserted into the mounting slot to adjust the zero position of the wind vane 300. At the same time, the tail tag slot 1012 extends from the edge of the base body 101 toward the mounting slot, and the tail tag slot 1012 and the N pole mark 1011 are on the same axis, so that when the wind vane 300 is aligned with the N pole mark 1011 on the base body 101, the tail tag 301 of the wind vane 300 can be fixed in the tail tag slot 1012, and the wind vane 300 can be fixed by the fixing part 102 provided on the base body 101, so that the assembly of the wind vane zero position correction device can be realized, thereby correcting the zero position of the wind vane 300 through the compass 201.
[0037] In some embodiments, as Figure 1 and Figure 2As shown, the fixing member 102 may include an arcuate groove 1021 provided on the base body 101 and a clamp 1022 that cooperates with the arcuate groove 1021. The clamp 1022 and the arcuate groove 1021 enclose a mounting cavity 1023 for securing the wind vane 300. Furthermore, one end of the clamp 1022 is hingedly connected to the base body 101, and the other end of the clamp 1022 can be connected to the base body 101 via a fastener such as a bolt to secure the wind vane 300. By securing the tail mark 301 of the wind vane 300 within the tail mark slot 1012 and aligning the wind vane 300 with the N-pole marking 1011 on the base body 101, the bolts between the clamp 1022 and the base body 101 can be tightened to secure the clamp 1022 to the wind vane 300, thereby completing the assembly of the wind vane zero position correction device. Of course, bolts or other fasteners can be used to connect both ends of the clamp 1022 so that the clamp 1022 can hold the wind vane 300 tightly, or one end of the clamp 1022 can be hinged to the base body 101, and the other end of the clamp 1022 can be connected to the base body 101 by a snap to hold the wind vane 300 tightly.
[0038] In some embodiments, as Figure 1 and Figure 2 As shown, the base body 101 has two opposing sides, and a laser emitter 202 is provided on at least one side of the base body 101. Alternatively, laser emitters 202 may be provided on both sides of the base body 101. Furthermore, the laser emitter 202 is mounted on at least one side of the base body 101 via a rotating base 203. The rotating base 203 can adjust the angle of the laser emitter 202 to facilitate calibration of the zero position of the wind vane 300 using the laser emitter 202.
[0039] In some embodiments, as Figure 1 and Figure 2As shown, the rotating base 203 may include a clamp 2031 for fixing the laser emitter 202 and an adjustment bolt 2032 provided on the clamp 2031, and a threaded hole that cooperates with the adjustment bolt 2032 is provided on at least one side of the base body 101, so that the laser emitter 202 can be fixed to the rotating base 203 through the clamp 2031. At the same time, the adjustment bolt 2032 is rotatably engaged with the threaded hole to achieve angle adjustment of the laser emitter 202, so that the zero position of the wind vane 300 can be corrected by the laser emitter 202. Specifically, threaded holes that cooperate with the adjustment bolt 2032 can be provided on both sides of the base body 101, so that the adjustment bolt 2032 of the rotating base 203 can be rotatably engaged with the threaded hole on either side of the base body 101 to achieve angle adjustment of the laser emitter 202, so that the zero position of the wind vane 300 can be corrected by the laser emitter 202. Of course, a rotating seat 203 can also be provided on the threaded holes on both sides of the base body 101, so that the laser emitter 202 can be installed on both sides of the base body 101 at the same time, or the laser emitter 202 can be installed on the rotating seat 203 on one side. When the position of the laser emitter 202 needs to be changed, the laser emitter 202 can be removed from the rotating seat 203 and installed on the rotating seat 203 on the other side to adapt to different installation environments and facilitate the correction of the zero position of the wind vane 300.
[0040] When using the wind vane zero position correction device for correction, the wind vane zero position correction device is attached to a plane, such as the main shaft, gear box or cabin shell of the wind turbine, and the compass 201 is used to measure the orientation of the central axis of the cabin of the wind turbine. If the wind turbine has a correction reference, the wind vane zero position correction device can be offset using the offset reference mark 1013 on the base body 101 and marked. The wind vane zero position correction device is installed on the wind vane 300, and the tail mark 301 of the wind vane 300 is fixed in the tail mark slot 1012 of the wind vane zero position correction device, and the zero position of the wind vane 300 is aligned with the N pole mark 1011 of the wind vane zero position correction device, and the bolts of the clamp 1022 of the wind vane zero position correction device are tightened to prevent relative movement between the wind vane zero position correction device and the wind vane 300. Adjust the nut between the wind vane 300 and the weather station bracket so that it feels slightly damped. Observe the direction of the compass 201 and rotate the wind vane 300 so that its direction is equal to the main shaft of the wind turbine. At this time, the zero position of the wind vane 300 is parallel to the central axis of the wind turbine's cabin. If there is a calibration reference, you can turn on the laser emitter 202, rotate the rotating seat 203 of the laser emitter 202, and use the cross laser to adjust and calibrate with the reference point, parallel straight line, and vertical straight line. When calibrating the zero position of the wind vane 300, you can compare the calibration of the compass 201 and the laser emitter 202 to see if there is any deviation. After the calibration is completed, you can mark the intersection of the cross laser for subsequent regular maintenance. Then, tighten the nut between the wind vane 300 and the weather station bracket and remove the wind vane zero position calibration device.
[0041] As can be seen from the above embodiments, the wind vane zero position calibration device disclosed in the embodiments of the present application can be assembled by securing the tail mark 301 of the wind vane 300 within the tail mark slot 1012, aligning the wind vane 300 with the N pole mark 1011 on the base body 101, and securing the wind vane 300 with the fixing member 102 provided on the base body 101. During use, the wind vane 300 can be calibrated using the compass 201, and simultaneously using the laser emitted by the laser emitter 202 for calibration. Both comparisons and markings can be performed, thereby reducing errors and improving the accuracy of the calibration of the wind vane 300.
[0042] The terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.
[0043] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A wind vane zero position correction device, characterized in that: include: A base (100), the base (100) comprising a base body (101) and a fixing member (102) for fixing a weather vane (300), the fixing member (102) being movably arranged on the base body (101), and the base body (101) being provided with an N-pole mark (1011) and a tail mark slot (1012) for fixing a tail mark (301) of the weather vane (300), the tail mark slot (1012) being collinear with the N-pole mark (1011); A calibration component (200) comprising a compass (201) and a laser emitter (202), wherein the compass (201) is fixed on the base body (101), and an N pole mark (1011) on the base body (101) is aligned with the N pole of the compass (201), and the laser emitter (202) is rotatably arranged on one side of the base body (101).
2. The wind vane zero position correction device according to claim 1, characterized in that: The fixing member (102) comprises an arc-shaped groove (1021) provided on the base body (101) and a clamp (1022) cooperating with the arc-shaped groove (1021); the clamp (1022) and the arc-shaped groove (1021) enclose a mounting cavity (1023) for fixing the weather vane (300).
3. The wind vane zero position correction device according to claim 2, characterized in that: One end of the hoop (1022) is hinged to the base body (101), and the other end of the hoop (1022) is connected to the base body (101) via a fastener to tightly hold the weather vane (300).
4. The wind vane zero position correction device according to claim 1, characterized in that: An offset reference mark (1013) is also provided on the base body (101), and the offset reference mark (1013) is used to calibrate the installation reference of the wind vane (300).
5. The wind vane zero position correction device according to claim 1, characterized in that: The base body (101) has two sides arranged opposite to each other, and the laser emitter (202) is provided on at least one side of the base body (101).
6. The wind vane zero position correction device according to claim 5, characterized in that: The laser emitter (202) is mounted on at least one side of the base body (101) via a rotating seat (203), and the rotating seat (203) is used to adjust the angle of the laser emitter (202).
7. The wind vane zero position correction device according to claim 6, characterized in that: The rotating seat (203) comprises a clamp (2031) for fixing the laser emitter (202) and an adjusting bolt (2032) provided on the clamp (2031), and at least one side of the base body (101) is provided with a threaded hole that cooperates with the adjusting bolt (2032).
8. The wind vane zero position correction device according to claim 1, characterized in that: The compass (201) is located on the upper surface of the base body (101), and the N pole mark (1011) and the tail mark slot (1012) are respectively located on both sides of the compass (201).
9. The wind vane zero position correction device according to claim 8, characterized in that: The upper surface of the base body (101) is provided with a mounting groove for mounting the compass (201), and the compass (201) is embedded in the mounting groove.
10. The wind vane zero position correction device according to claim 9, characterized in that: The tail label slot (1012) extends from the edge of the base body (101) toward the installation slot.