Fan blade non-destructive transfer system

Abstract

This invention provides a non-destructive transfer system for wind turbine blades, belonging to the field of wind turbine blade manufacturing. The system includes: a handling device for transporting wind turbine blades; a detection unit installed on both the handling device and the wind turbine blades for real-time monitoring of indicators causing wind turbine blade damage during transport; and a control unit electrically connected to the detection unit for determining whether the indicators have reached an adjustment standard. If the indicators have reached the standard, the operating state of the handling device is adjusted to keep the indicators below the adjustment standard. This invention, through the detection unit's real-time monitoring of indicators causing wind turbine blade damage during transport, can promptly detect changes in these indicators. When an indicator reaches the adjustment standard, the operating state of the handling device is promptly controlled and adjusted to keep the wind turbine blade's indicators below the adjustment standard, thereby reducing blade damage and improving blade quality.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade manufacturing, and more specifically to a non-destructive transfer system for wind turbine blades. Background Technology

[0002] Wind power is one of the most mature, scalable, and commercially viable renewable energy sources, with abundant and widely distributed wind resources globally. Meanwhile, with the continuous maturation of wind power technologies and equipment upgrades, China's wind power industry is developing rapidly, and the trend is towards larger sizes for offshore, onshore, and ultra-low wind speed turbines. Ensuring blade quality and mitigating risks have become crucial aspects of wind turbine blade manufacturing.

[0003] Currently, the blade transfer process mainly relies on mechanized transport using tooling and equipment, such as blade removal from film, blade demolding, blade lifting, blade transport, and blade flipping. These processes can easily cause blade damage, or defects may be difficult to detect due to improper operation, leading to a reduction in blade quality and rendering the blade unusable. Summary of the Invention

[0004] The purpose of this invention is to provide a non-destructive transfer system for wind turbine blades, solving the problem of blade damage during handling or difficulty in detecting defects caused by improper operation.

[0005] To achieve the above objectives, the present invention provides a non-destructive transmission system for wind turbine blades, the system comprising:

[0006] A handling device is used to handle wind turbine blades; the handling process of wind turbine blades includes at least the processing and demolding of wind turbine blades, lifting, transfer and flipping processes;

[0007] The detection unit is installed on the handling device and the fan blades to detect the status indicators that may cause damage to the fan blades in real time during the handling process.

[0008] The control unit, electrically connected to the detection unit, is used to determine whether the status indicator has reached the adjustment standard. If the status indicator has reached the adjustment standard, the working state of the conveying device is adjusted so that the status indicator is below the adjustment standard.

[0009] Preferably, it further includes: an alarm unit, which is communicatively connected to the control unit, for generating an alarm signal when the determined status indicator reaches the adjustment standard.

[0010] Preferably, the condition indicators include: pressure bearing indicators and vibration indicators.

[0011] Preferably, the handling device includes: a transfer device for transferring wind turbine blades;

[0012] The detection unit includes multiple vibration sensors installed inside the wind turbine blades to detect the vibrations generated by the wind turbine blades during transport and obtain the vibration index of the wind turbine blades.

[0013] Preferably, the adjustment of the working state of the conveying device includes, but is not limited to: stopping the transfer equipment and reducing the speed of the transfer equipment.

[0014] Preferably, the handling device includes: a lifting fixture for lifting the wind turbine blades;

[0015] The detection unit includes multiple first pressure sensors; the multiple first pressure sensors are installed on the lifting fixture to detect the pressure on the wind turbine blades during the lifting process and obtain the pressure bearing index of the wind turbine blades.

[0016] Preferably, the adjustment of the working state of the conveying device includes, but is not limited to: stopping the lifting operation of the lifting fixture and adjusting the attitude of the fan blades of the lifting fixture.

[0017] Preferably, the conveying device includes: a mold and a pneumatic unit for processing and demolding the wind turbine blades;

[0018] The mold is used to process wind turbine blades;

[0019] The pneumatic unit is installed on the mold and is used to separate the mold from the processed and shaped fan blades;

[0020] The detection unit includes multiple second pressure sensors; the multiple second pressure sensors are installed on the surface of the pneumatic unit to detect the pressure on the fan blades during the separation process and obtain the pressure bearing index of the fan blades.

[0021] Preferably, the pneumatic unit includes: a compressor, an air hose, and four air bags;

[0022] The inflation and deflation ends of the airbags are connected to the inflation end of the compressor via air pipes. Each airbag is equipped with a control valve at its inflation and deflation end, and a second pressure sensor is installed in the center of the surface of each airbag.

[0023] Preferably, it also includes: an inspection unit, which is connected in communication with the control unit and is used to perform non-destructive testing on the wind turbine blades that have been transported to the designated location;

[0024] The non-destructive testing includes at least one of the following: video and photographic testing, ultrasonic testing, surface testing, and leaf root testing.

[0025] Through the above technical solution, the present invention has at least the following technical effects:

[0026] This invention uses a detection unit to monitor the status indicators that cause damage to wind turbine blades in real time during the handling process. It can promptly detect changes in the status indicators and, when the status indicators reach the adjustment standard, promptly control and adjust the working state of the handling device to keep the status indicators of the wind turbine blades below the adjustment standard, thereby reducing blade damage and improving blade quality.

[0027] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a block diagram of a wind turbine blade non-destructive transmission system provided in one embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a pneumatic unit provided in one embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures

[0032] 1-Second pressure sensor; 2-Insufficient air bag; 3-Air tube; 4-Control valve. Detailed Implementation

[0033] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0034] Figure 1 This is a block diagram of a wind turbine blade non-destructive transmission system provided in one embodiment of the present invention, as shown below. Figure 1 As shown, a non-destructive transfer system for wind turbine blades includes: a handling device, a detection unit, and a control unit;

[0035] The handling device is used to handle the wind turbine blades. In this embodiment, the handling process of the wind turbine blades is the blade transfer process after the blade production and forming process. The entire transfer process includes blade demolding, separation from the film, lifting, transfer, and flipping.

[0036] The detection unit is installed on the handling device and the wind turbine blades. The detection unit is used to detect the status indicators that cause damage to the wind turbine blades in real time during the handling process. In this embodiment, pressure and vibration are important parameters when handling wind turbine blades. Therefore, the main detection is the pressure and vibration of the wind turbine blades. The status indicators mainly include pressure indicators and vibration indicators.

[0037] The control unit is electrically connected to the detection unit. The control unit is used to determine whether the status indicator has reached the adjustment standard. If the status indicator has reached the adjustment standard, the working state of the conveying device is adjusted so that the status indicator is below the adjustment standard.

[0038] This invention uses a detection unit to monitor the status indicators that cause damage to wind turbine blades in real time during the handling process. It can promptly detect changes in the status indicators and, when the status indicators reach the adjustment standard, promptly control and adjust the working state of the handling device to keep the status indicators of the wind turbine blades below the adjustment standard, thereby reducing blade damage and improving blade quality.

[0039] As a further optimization of this embodiment, the system also includes: an alarm unit, which is communicatively connected to the control unit, and is used to generate an alarm signal when the status index is determined to have reached the adjustment standard. The alarm signal can be an audible and visual alarm signal, which can promptly inform the staff that the status index of the wind turbine blades has exceeded the adjustment standard during the handling process, and promptly adjust the working status of the handling device to ensure that the wind turbine blades are not damaged.

[0040] As a further optimization of this embodiment, the conveying device includes: a mold and a pneumatic unit for processing and demolding the wind turbine blades;

[0041] The mold is used to process wind turbine blades. The pneumatic unit is installed on the mold and is used to separate the mold from the processed wind turbine blades. In this embodiment, since there is a micro gap between the mold and the blade, the starting unit can be placed in the micro gap. When the blade is formed, the pneumatic unit can inflate and expand to push the wind turbine blade out of the mold, thereby realizing the demolding operation of the wind turbine blade.

[0042] The detection unit includes multiple second pressure sensors 1, which are mounted on the surface of the pneumatic unit to detect the pressure on the fan blades during the separation process and obtain the pressure bearing index of the fan blades.

[0043] Specifically, such as Figure 2As shown, the pneumatic unit includes a compressor, an air pipe 3, and four air bags 2. The inflation and deflation ends of the air bags 2 are connected to the inflation end of the compressor through the air pipe 3. The air pipe 3 has a five-way connector, four of which are connected to the inflation and deflation ends of the corresponding four air bags 2. The fifth end of the five-way connector is connected to the inflation end of the compressor. Each air bag 2 is equipped with a control valve 4 at its inflation and deflation end. The control valve 4 is used to control the inflation or deflation of air into the corresponding air bag 2 and to control the flow rate of the inflation air. A second pressure sensor 1 is installed in the middle of the surface of each air bag 2.

[0044] In this embodiment, during the inflation of the airbag 2, it is necessary to ensure that the force on all parts of the fan blade is uniform. At this time, the adjustment standard is the maximum pressure value and the maximum pressure difference between two airbags 2. When the pressure generated by a certain airbag 2 reaches the maximum pressure value, the control valve 4 is closed to stop inflating the airbag. When the pressure difference generated by two airbags 2 reaches the maximum pressure difference, the air intake flow of the control valve 4 is adjusted to reduce the pressure difference and ensure that the fan blade is not damaged during demolding.

[0045] As a further optimization of this embodiment, the handling device includes: a lifting fixture for lifting the wind turbine blades. In this embodiment, the lifting fixture mainly consists of a crane and straps. The straps are used to bind the wind turbine blades. After the wind turbine blades are bound, the crane performs the lifting operation.

[0046] The detection unit includes: a plurality of first pressure sensors;

[0047] Multiple primary pressure sensors are installed on the straps of the lifting fixture to detect the pressure on the wind turbine blades during the lifting process, thereby obtaining the pressure bearing index of the wind turbine blades. At this time, the adjustment standard is the pressure bearing limit.

[0048] When the pressure index reaches the pressure limit, the adjustment of the working status of the handling device includes, but is not limited to: stopping the lifting operation of the lifting fixture and adjusting the attitude of the wind turbine blades. That is, during the lifting process of the wind turbine blades, the change in the attitude of the wind turbine blades will cause the local pressure of the wind turbine blades to reach or exceed the pressure limit. When some of the first pressure sensors detect that the pressure limit has been reached, it is necessary to adjust the attitude of the wind turbine blades by the crane. When the attitude adjustment is not enough to reduce the local pressure on the wind turbine blades, the lifting operation needs to be stopped and the binding of the wind turbine blades needs to be adjusted in time to prevent damage to the wind turbine blades due to excessive local pressure.

[0049] As a further optimization of this embodiment, the handling device includes: a transfer device for transferring wind turbine blades. In this embodiment, the transfer device can be a transfer vehicle, a truck, or a storage device, etc., mainly used for transporting and storing wind turbine blades.

[0050] The detection unit includes multiple vibration sensors installed inside the wind turbine blades to detect the vibrations generated by the wind turbine blades during transport and obtain the vibration index of the wind turbine blades.

[0051] Vibration sensors are placed on the shell and web areas of the wind turbine blades. The adjustment standard is the vibration limit. Secondly, various vibration monitoring standards are divided according to different structural areas, that is, each area has a vibration limit. When the vibration index of any area of ​​the wind turbine blade reaches the vibration limit of that area, the working state of the transfer device needs to be adjusted. The working state adjustment includes, but is not limited to: stopping the transfer equipment and reducing the speed of the transfer equipment, which can effectively reduce blade damage during transfer and storage.

[0052] As a further optimization of this embodiment, the system also includes: an inspection unit, which is communicatively connected to the control unit, for performing non-destructive testing on the wind turbine blades that have been transported to the designated location. The non-destructive testing includes at least one of video and photo inspection, ultrasonic testing, surface inspection, and blade root inspection. The inspection unit includes equipment such as an ultrasonic testing instrument and a camera. Through inspection and testing, it is determined that the wind turbine blades have no damage or deformation and other product quality factors after the above-mentioned handling operations.

[0053] As a further optimization of this embodiment, the system also includes a memory, which is communicatively connected to the control unit. The memory is used for data recording, storage, querying, and other functions, to realize the recording and archiving of production measurement and control data, and to standardize the processing of parameter changes during blade transfer, which is beneficial for handling product defect problems in the later stage.

[0054] This invention controls the pressure and vibration experienced by the blade body during the blade transfer process by controlling operations such as blade separation from the film, demolding, lifting, transportation, and flipping. It limits the blade vibration and pressure to below the adjustment standard, thereby reducing the risks caused during the blade forming and storage process and improving blade quality. Finally, a re-inspection unit is used to repeatedly verify the control results of the transfer process, ensuring the accuracy of the data information for practical applications.

[0055] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0056] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0057] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0058] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0059] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0060] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0061] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0062] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0063] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A non-destructive transfer system for a wind turbine blade, characterized by, The system comprises: a carrying device for carrying the fan blade; the carrying process of the fan blade at least includes processing and demolding, hoisting, transferring and turning over of the fan blade; a detection unit installed on the carrying device and the fan blade, for detecting the state index causing damage to the fan blade in real time during the carrying process; a control unit electrically connected with the detection unit, for judging whether the state index reaches the adjustment standard, and adjusting the working state of the carrying device if the state index reaches the adjustment standard, so that the state index is below the adjustment standard; the state index includes a pressure index and a vibration index; the carrying device includes a mold and a pneumatic unit for processing and demolding of the fan blade; the mold is used for processing the fan blade; the pneumatic unit is installed on the mold and used for separating the mold from the processed fan blade, the pneumatic unit is arranged in a micro gap between the mold and the blade, and when the blade is formed, the pneumatic unit can be inflated to expand, the fan blade is pushed out of the mold, and the demolding operation of the fan blade is realized; the detection unit includes a plurality of second pressure sensors (1); the plurality of second pressure sensors (1) are installed on the surface of the pneumatic unit, and used for detecting the pressure received by the fan blade during the separation process to obtain the pressure index of the fan blade; the pneumatic unit includes a compressor, an air pipe (3) and four air bag pockets (2); the inflation and deflation end of the air bag pocket (2) is connected with the inflation end of the compressor through the air pipe (3), a control valve (4) is installed on the inflation and deflation end of each air bag pocket (2), and a second pressure sensor (1) is installed on the middle of the surface of each air bag pocket (2); during the inflation and expansion process of the air bag pocket (2), it is necessary to ensure that the force on each part of the fan blade is uniform, at this time, the adjustment standard is the maximum pressure value and the maximum pressure difference between every two air bag pockets (2), when the pressure generated by a certain air bag pocket (2) reaches the maximum pressure value, the control valve (4) is closed, and the inflation of the air bag pocket is stopped; when the pressure difference between two air bag pockets (2) reaches the maximum pressure difference, the air inflow of the control valve (4) is adjusted to reduce the pressure difference, so that the fan blade will not be damaged during the demolding process.

2. The fan blade non-passing system according to claim 1, wherein Further comprising: an alarm unit in communication with the control unit, for generating an alarm signal when it is determined that the state index reaches the adjustment standard.

3. The fan blade non-passing system according to claim 1, wherein, the carrying device includes a transfer device for transferring the fan blade; the detection unit includes a plurality of vibration sensors installed in the fan blade, for detecting the vibration generated by the fan blade during the transferring process to obtain the vibration index of the fan blade.

4. The fan blade non-passing system according to claim 3, wherein, The adjustment of the working state of the carrying device includes but is not limited to stopping the operation of the transfer device and reducing the speed of the transfer device.

5. The fan blade non-passing system of claim 1, wherein, the carrying device includes a hoisting tool for hoisting the fan blade; the detection unit includes a plurality of first pressure sensors installed on the hoisting tool, for detecting the pressure received by the fan blade during the hoisting process to obtain the pressure index of the fan blade.

6. The fan blade non-passing system of claim 5, wherein, The working state adjustment of the carrying device includes, but is not limited to, stopping the hoisting tool from hoisting and adjusting the posture of the fan blade by the hoisting tool.

7. The fan blade non-passing system of claim 1, wherein, Further comprising: The troubleshooting unit is connected in communication with the control unit and is configured to perform nondestructive testing on the fan blade carried into position. The nondestructive testing includes at least one of video photographing, ultrasonic testing, profile testing, and blade root testing.

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