CN210639103U - Wind turbine generator system blade surface defect access device - Google Patents
Wind turbine generator system blade surface defect access device Download PDFInfo
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- CN210639103U CN210639103U CN201920908879.8U CN201920908879U CN210639103U CN 210639103 U CN210639103 U CN 210639103U CN 201920908879 U CN201920908879 U CN 201920908879U CN 210639103 U CN210639103 U CN 210639103U
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Abstract
The utility model relates to a wind turbine generator system blade surface defect number of getting device belongs to wind turbine generator system failure diagnosis field. The utility model comprises a camera group for shooting images, a bracket for arranging the camera group, a positioning camera, an image processing server, a communication cable and an alternating current power supply; the camera group is arranged on the support, the positioning camera is arranged on the side surface of the camera group and is positioned in the middle of the camera group, the camera group and the positioning camera are both connected with the image processing server through communication cables, and the image processing server is connected with the alternating current power supply. The plurality of eyepieces of the camera group are arranged in an arc line. The length of the communication cable is 100 m. The wind power generation system is simple in structure, compact in system, strong in practicability, suitable for being used in the wind power industry, and has operability, and practice proves that the method is a good method.
Description
Technical Field
The utility model relates to a wind turbine generator system blade surface defect number of getting device belongs to wind turbine generator system failure diagnosis field.
Background
In recent years, the annual growth rate of the utilization of global renewable energy sources reaches 25%, the utilization of the renewable energy sources is dominated by the power industry, and the power generation proportion of non-hydraulic renewable energy sources is expanded by two times. Statistically, the consumption of renewable energy in 2030 will exceed 22 hundred million t oil equivalents. Wind power generation is the most mature renewable energy power generation except hydroelectric power generation, and the installed capacity of the wind power generation accounts for the vast majority of the total installed capacity of the whole renewable energy power generation.
The wind generating set comprises a wind wheel and a generator; the wind wheel comprises blades, a hub, a reinforcing member and the like; it has the functions of wind driven blade rotation to generate electricity, generator head rotation, etc. The wind power generation power supply comprises a wind generating set, a tower frame for supporting the generating set, a storage battery charging controller, an inverter, an unloader, a grid-connected controller, a storage battery pack and the like.
Blades of the wind generating set are exposed in the field all the year round and are easily subjected to wind blowing, sun drying, rain and lightning stroke, so that various defects are easily caused. The fan blade has various defects caused by the following reasons:
1. production defects
1.1 use of unreasonable materials
1.2 relaxed quality control
1.3 the process of the production tool is too complex, and products with consistent quality are difficult to produce.
2. The natural cause
Lightning strikes to the blade. The method mainly comprises the following steps: lightning stroke, particles in the air, high-speed wind, shear wind, bad weather and fatigue life.
3. Improper operation and maintenance
3.1 over-rated power operation
3.2 out of control
When the variable pitch system of the fan fails, the impeller cannot stop rotating due to braking on the fan, the blades cannot control and continue to rotate rapidly, and the blades are thrown out seriously, so that disastrous accidents of the fan are caused.
3.3 lack of preventive maintenance
During routine operation and maintenance of the fan, the blades are not paid attention. However, the aging of the blades changes with time under adverse conditions such as sunlight, acid rain, gust, natural vibration, wind, sand, salt mist and the like. The blades are difficult to inspect and maintain in daily maintenance of the blades, and natural cracking, sand holes, surface abrasion, lightning damage, transverse cracks and the like can occur on the blades in a plurality of wind fields due to aging. If daily maintenance is carried out in place, high maintenance cost in the future can be avoided, and economic loss caused by shutdown can be reduced.
In view of this, patent document No. 201810052136.5 discloses an intelligent detection system for surface defects of a wind turbine generator system blade. The number of the wind turbine generators is large, potential safety hazards are easily generated on blades, the potential safety hazards are caused in various ways, and great difficulty is brought to automatic identification, classification and positioning of faults of the blades of the wind turbine generators.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a wind turbine generator system blade surface defect number of getting device that structural design is reasonable.
The utility model provides a technical scheme that above-mentioned problem adopted is: this wind turbine generator system blade surface defect access device, its structural feature lies in: the system comprises a camera group for shooting images, a bracket for arranging the camera group, a positioning camera, an image processing server, a communication cable and an alternating current power supply; the camera group is arranged on the support, the positioning camera is arranged on the side surface of the camera group and is positioned in the middle of the camera group, the camera group and the positioning camera are both connected with the image processing server through communication cables, and the image processing server is connected with the alternating current power supply.
Further, a plurality of eyepieces of the camera group are arranged in an arc line.
Further, the length of the communication cable is 100 m.
Furthermore, the camera group, the positioning camera and the image processing server are all connected with an alternating current power supply through communication cables.
Further, another technical object of the present invention is to provide a lens layout method for a wind turbine generator set blade surface defect access device.
The above technical object of the present invention can be achieved by the following technical solutions.
A lens layout method for a wind turbine blade surface defect access device is characterized by comprising the following steps: the lens layout method comprises the following steps:
arranging a plurality of cameras into a row and installing the cameras on a bracket so that the eyepieces of the cameras are arranged on a section of arc line to form a camera group; the positioning camera is arranged on the side surface of the camera group and is positioned in the middle of the camera group, and is used for positioning the camera group, ensuring that the whole shot blade is positioned in the view finding range of the camera group and ensuring that the minimum resolution of the shot image is 5 mm; the data acquired by the camera group is transmitted to an image processing server through a communication cable for processing, and an alternating current power supply provides power for the equipment; different placement positions of the cameras and different inclination angles of the fan blades can generate different object distances.
Compared with the prior art, the utility model has the advantages of it is following:
1. the wind power generation system is simple in structure, compact in system, strong in practicability, suitable for being used in the wind power industry, and has operability, and practice proves that the method is a good method.
2. The system has scientificity, and the cameras for shooting images are arranged in an arc shape, so that the view finding range is enlarged, the whole blade shooting is realized, and the actual shooting requirements of 60m in length and 6m in width of the windmill blade are met.
3. The method has the advantages of high sensitivity, high calculation speed, visual and visual result and the like.
4. The method has strong operability, indexes are reasonably based on scientific consideration, original data are convenient to obtain, and the method has operability.
5. The comparability is strong.
6. The method is highly conductive, quantifies statistics, and can provide data for scientific research.
7. Has wide applicability.
Drawings
Fig. 1 is a schematic view of the structure of the wind turbine generator set blade surface defect counting device.
Fig. 2 is a schematic side view of the wind turbine generator set blade surface defect data acquisition device of the present invention.
Fig. 3 is a schematic view of the overlooking structure of the wind turbine generator set blade surface defect counting device of the present invention.
Fig. 4 is a schematic view of embodiment 1 of the present invention.
Fig. 5 is a schematic view of embodiment 2 of the present invention.
In the figure: camera group 1, support 2, location camera 3, image processing server 4, communication cable 5, alternating current power supply 6.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1 to 5, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if the terms such as "upper", "lower", "left", "right", "middle" and "one" are used, they are not intended to limit the scope of the present invention, but to limit the relative relationship between the terms and the terms, and the scope of the present invention is not to be considered as the scope of the present invention.
The wind turbine blade surface defect access device in the embodiment comprises a camera group 1 for shooting images, a support 2 for arranging the camera group 1, a positioning camera 3, an image processing server 4, a communication cable 5 and an alternating current power supply 6; the length of the communication cable 5 is 100 m.
The camera group 1 in this embodiment is mounted on the support 2, a plurality of eyepieces of the camera group 1 are arranged in an arc line, the positioning camera 3 is mounted on a side surface of the camera group 1 and is located in the middle of the camera group 1, the camera group 1 and the positioning camera 3 are both connected with the image processing server 4 through the communication cable 5, the image processing server 4 is connected with the alternating current power supply 6, and the camera group 1, the positioning camera 3 and the image processing server 4 are all connected with the alternating current power supply 6 through the communication cable 5.
The lens layout method of the wind turbine blade surface defect access device in the embodiment includes the following steps: arranging a plurality of cameras into a row and installing the cameras on a bracket 2, so that the eyepieces of the cameras are arranged on a section of arc line to form a camera group 1; the positioning camera 3 is arranged on the side surface of the camera group 1 and is positioned in the middle of the camera group 1, and is used for positioning the camera group 1, ensuring that the whole shot blade is positioned in the view finding range of the camera group 1 and ensuring that the minimum resolution of the shot image is 5 mm; the data taken by the camera group 1 is transmitted to the image processing server 4 for processing through a communication cable 5, and an alternating current power supply 6 provides power for the equipment; different placement positions of the cameras and different inclination angles of the fan blades can generate different object distances.
TABLE 1 main technical parameters of the Camera group
| Index name | Effective area | Area of pixel | Resolution ratio |
| Unit of | mm | um | / |
| Numerical value | 12.7*9.52 | 3.1*3.1 | 4192*3128 |
TABLE 2 main technical parameters of the blade
| Blade | Long and long | Width of |
| Unit of | m | m |
| Numerical value | 60 | 6 |
The splicing results of different object distances, focal lengths, inclination angles and lens numbers of the embodiment are as follows:
example 1: 80m object distance, 7 85mm focal length lenses, inclination angle 7 °, 14 °, 21 ° lens splicing condition: the overlapping areas are in turn 2.012, 2.07, 2.213 m. The overall field of view is 76.2 m. The imaging size was 12.6572 × 9.4664mm, and the individual lens field of view was 11.9 × 8.9 m. See fig. 4 for a
Example 2: 69.1m object distance, 6 50mm focal length lenses, inclination 3.5 °, 9.5 °, 17.5 ° lens splicing condition: the overlap areas are 10.4m and 8.3m, respectively. The total field of view is 64.5 m. The imaging size was 12.85 × 9.41mm and the individual lens field of view was 17.75 × 13 m. See fig. 5 for a
In conclusion, the wind turbine generator set blade surface defect data acquisition device has the following advantages:
1. the wind power generation system is simple in structure, compact in system, strong in practicability, suitable for being used in the wind power industry, and has operability, and practice proves that the method is a good method.
2. The field assembly and disassembly are convenient.
3. The defects of the fan blades can be detected, classified and positioned.
4. The system has scientificity, and the cameras for shooting images are arranged in an arc shape, so that the view finding range is enlarged, the whole blade shooting is realized, and the actual shooting requirements of 60m in length and 6m in width of the windmill blade are met.
5. The method has the advantages of high sensitivity, high calculation speed, visual and visual result and the like.
6. The method has strong operability, indexes are reasonably based on scientific consideration, original data are convenient to obtain, and the method has operability.
7. The comparability is strong.
8. The method is highly conductive, quantifies statistics, and can provide data for scientific research.
9. Has wide applicability.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The utility model provides a wind turbine generator system blade surface defect access device which characterized in that: the system comprises a camera group (1) for shooting images, a bracket (2) for arranging the camera group (1), a positioning camera (3), an image processing server (4), a communication cable (5) and an alternating current power supply (6); the camera group (1) is arranged on the support (2), the positioning camera (3) is arranged on the side surface of the camera group (1) and is positioned in the middle of the camera group (1), the camera group (1) and the positioning camera (3) are both connected with the image processing server (4) through a communication cable (5), and the image processing server (4) is connected with the alternating current power supply (6).
2. The wind turbine generator system blade surface defect access device of claim 1, wherein: the plurality of eyepieces of the camera group (1) are arranged in an arc line.
3. The wind turbine generator system blade surface defect access device of claim 1, wherein: the length of the communication cable (5) is 100 m.
4. The wind turbine generator system blade surface defect access device of claim 1, wherein: the camera group (1), the positioning camera (3) and the image processing server (4) are all connected with an alternating current power supply (6) through a communication cable (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920908879.8U CN210639103U (en) | 2019-06-17 | 2019-06-17 | Wind turbine generator system blade surface defect access device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920908879.8U CN210639103U (en) | 2019-06-17 | 2019-06-17 | Wind turbine generator system blade surface defect access device |
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| CN210639103U true CN210639103U (en) | 2020-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274917A (en) * | 2019-06-17 | 2019-09-24 | 华电电力科学研究院有限公司 | A kind of wind power generation unit blade surface defect access device and camera lens layout method |
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2019
- 2019-06-17 CN CN201920908879.8U patent/CN210639103U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274917A (en) * | 2019-06-17 | 2019-09-24 | 华电电力科学研究院有限公司 | A kind of wind power generation unit blade surface defect access device and camera lens layout method |
| CN110274917B (en) * | 2019-06-17 | 2023-12-05 | 华电电力科学研究院有限公司 | Wind turbine generator blade surface defect taking device and lens layout method |
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