Ion exchange membrane defect detection system

Abstract

The utility model relates to an ion exchange membrane defect detection system which comprises a labeling mechanism, an ion exchange membrane, a light source, an image acquisition device and a control device, the light source and the image acquisition device can be controlled to start and operate through the control device, and when the light source irradiates the ion exchange membrane, the image acquisition device can perform image acquisition on the ion exchange membrane; and the surface image is sent to the control device. And then image recognition processing is carried out at the control device, when the defect result of the ion exchange membrane is recognized, the control device can control the labeling mechanism to operate, the labeling mechanism is used for marking the ion exchange membrane, and then defect marking is achieved. Through the scheme, the defect detection of the ion exchange membrane can be automatically realized, and compared with manual visual inspection, the defect detection efficiency is higher.

Description

Technical Field

[0001] This application relates to the field of flow battery technology, and in particular to an ion exchange membrane defect detection system. Background Technology

[0002] Flow batteries are a new type of energy storage battery in which the positive and negative electrolytes are circulated separately. With the rapid development of renewable energy, flow batteries have become an important candidate in the energy storage field due to their advantages such as high capacity, wide range of applications, high efficiency, and safety. The flow battery stack is equipped with an ion exchange membrane to isolate the positive and negative electrolytes while allowing specific ions (such as protons and sodium ions) to pass through, forming a conductive circuit inside the battery and maintaining circuit continuity. The quality of the ion exchange membrane is particularly important.

[0003] In related technologies, after the ion exchange membrane is produced, visual inspection is required to identify defects such as pinholes and pits on the membrane surface, which results in low defect detection efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide an ion exchange membrane defect detection system to solve the problem of low defect detection efficiency of ion exchange membranes.

[0005] This application provides an ion exchange membrane defect detection system, comprising: a labeling mechanism, an ion exchange membrane, a light source, an image acquisition device, and a control device. The light source and the image acquisition device are disposed opposite to each other, and the ion exchange membrane is disposed between the light source and the image acquisition device. The image acquisition device is used to acquire a surface image of the ion exchange membrane. The light source, the image acquisition device, and the labeling mechanism are respectively connected to the control device. The control device is used to control the labeling mechanism to start labeling the ion exchange membrane when it is determined from the surface image that the ion exchange membrane has a defect.

[0006] In one embodiment, the system further includes at least one transmission device connected to the control device, and the ion exchange membrane is disposed on the transmission device.

[0007] In one embodiment, the transmission device includes a driver and a roller, the ion exchange membrane is disposed on the roller, and the driver is connected to the control device.

[0008] In one embodiment, the system further includes an information prompting device connected to the control device.

[0009] In one embodiment, the system further includes a drive device connected to the control device and the image acquisition device.

[0010] In one embodiment, the image acquisition device is a line scan camera.

[0011] In one embodiment, the control device includes a controller and an interactive display, wherein the interactive display, the light source, the image acquisition device, and the labeling mechanism are respectively connected to the controller.

[0012] In one embodiment, the control device further includes a memory, the controller being connected to the memory, the memory being used to classify and store defect detection results.

[0013] In one embodiment, the control device further includes a wireless communication device connected to the controller.

[0014] In one embodiment, the system further includes a terminal device that is communicatively connected to the control device.

[0015] The aforementioned ion exchange membrane defect detection system includes a labeling mechanism, an ion exchange membrane, a light source, an image acquisition device, and a control device. The control device activates the light source and image acquisition device. When the light source illuminates the ion exchange membrane, the image acquisition device captures an image of the membrane's surface and sends it to the control device. The control device then performs image recognition processing. If a defect is detected in the ion exchange membrane, the control device activates the labeling mechanism to apply a label to the membrane, thus marking the defect. This system enables automated defect detection of ion exchange membranes, offering significantly higher efficiency compared to manual visual inspection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the ion exchange membrane defect detection system in one embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the ion exchange membrane defect detection system in another embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the ion exchange membrane defect detection system in another embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the control device structure in one embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the control device structure in another embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 101-Labeling mechanism, 102-Ion exchange membrane, 103-Light source, 104-Image acquisition device, 105-Control device, 201-Transmission device, 301-Information prompting device, 401-Controller, 402-Interactive display, 501-Memory, 502-Wireless communication device. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0027] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0028] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0029] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0030] The ion exchange membrane defect detection system provided in this application embodiment is used for defect detection of the ion exchange membrane in the stack of a flow battery. The flow battery includes a stack, a positive electrode reservoir for storing the positive electrolyte, a negative electrode reservoir for storing the negative electrolyte, and components such as a circulation pump and a battery management system. Since the positive and negative electrode electrolytes are independently circulated, circulation pipes and circulation pumps need to be installed at the positive and negative electrode reservoirs respectively to transport the positive and negative electrode electrolytes to the stack.

[0031] Please see Figure 1 This application provides an ion exchange membrane defect detection system, including: a labeling mechanism 101, an ion exchange membrane 102, a light source 103, an image acquisition device 104, and a control device 105. The light source 103 and the image acquisition device 104 are arranged opposite to each other. The ion exchange membrane 102 is disposed between the light source 103 and the image acquisition device 104. The image acquisition device 104 is used to acquire surface images of the ion exchange membrane 102. The light source 103, the image acquisition device 104, and the labeling mechanism 101 are respectively connected to the control device 105. The control device 105 is used to control the labeling mechanism 101 to start labeling the ion exchange membrane 102 when it is determined from the surface image that there is a defect in the ion exchange membrane 102.

[0032] Specifically, the light source 103 is a device that emits light to illuminate the ion exchange membrane 102. The image acquisition device 104 is a device that can acquire images of the light-illuminated area of ​​the ion exchange membrane 102 to obtain a surface image of the ion exchange membrane 102. The labeling mechanism 101 is a device that can mark the ion exchange membrane 102. Its type is not unique; it can be a color-marking labeling mechanism 101, or it can be used to affix other objects, such as labels, to the ion exchange membrane 102. There is no specific limitation.

[0033] During actual testing, the control device 105 can control the light source 103 to turn on, thereby increasing the brightness of the surface image acquired by the image acquisition device 104 and improving the accuracy of defect detection. If the control device 105 identifies no defects in the surface image, no marking is required; if the control device 105 identifies defects in the surface image, it controls the labeling mechanism 101 to turn on and label the ion exchange membrane 102.

[0034] It is understood that, in one embodiment, for the same ion exchange membrane 102, the control device 105 will bind and store the detection results with the ion exchange membrane 102 regardless of whether surface defects are detected, so as to view them later.

[0035] It should be noted that after acquiring the surface image, the control device 105 can perform defect detection on the surface image in a way that is not unique. Conventional image recognition technology can be used, that is, after processing the acquired surface image by denoising, enhancing, filtering, etc., useful feature information such as color, texture, and shape is extracted from the image, and the extracted features are matched with a known feature library to determine the category or target to which the image belongs, and the recognition result is output.

[0036] Specifically, surface pattern defect detection can be achieved through deep learning based on convolutional neural networks (CNN), recurrent neural networks (RNN), and generative adversarial networks (GAN), without any specific limitations.

[0037] In this embodiment, the ion exchange membrane defect detection system should also include a bracket for supporting devices such as the image acquisition device 104, the light source 103, and the labeling mechanism 101, which will not be described in detail.

[0038] The aforementioned ion exchange membrane defect detection system includes a labeling mechanism 101, an ion exchange membrane 102, a light source 103, an image acquisition device 104, and a control device 105. The control device 105 controls the operation of the light source 103 and the image acquisition device 104. When the light source 103 illuminates the ion exchange membrane 102, the image acquisition device 104 acquires an image of the ion exchange membrane 102, obtaining a surface image and sending it to the control device 105. Subsequently, image recognition processing is performed at the control device 105. When a defect is detected in the ion exchange membrane 102, the control device 105 controls the labeling mechanism 101 to apply a label to the ion exchange membrane 102, thus marking the defect. This system automatically detects defects in the ion exchange membrane 102, offering higher defect detection efficiency compared to manual visual inspection.

[0039] Please see Figure 2In one embodiment, the system further includes at least one transmission device 201 connected to the control device 105, and an ion exchange membrane 102 disposed on the transmission device 201.

[0040] Specifically, the transmission device 201 is a device that performs a transmission function, thereby driving the ion exchange membrane 102 to move. In this embodiment, during defect detection, the control device 105 can control the transmission device 201 to start operating and transport the ion exchange membrane 102. When the ion exchange membrane 102 passes through the area corresponding to the image acquisition device 104 and the light source 103, the image acquisition device 104 can acquire surface images. Thus, through the drive of the transmission device 201, defect detection on all surfaces of the ion exchange membrane 102 can be achieved.

[0041] It should be noted that the type of transmission device 201 is not unique. Any device that can sequentially send the ion exchange membrane 102 to the image acquisition device 104 for image acquisition and realize the detection of surface defects of the entire ion exchange membrane 102 is acceptable.

[0042] For example, in one embodiment, the drive 201 includes a driver and a roller, with the ion exchange membrane 102 disposed on the roller, and the driver connected to the control device 105.

[0043] Specifically, a roller is a process or equipment component that processes materials through the rotation and pressure of rollers. In this embodiment, two or more rollers are provided, and the ion exchange membrane 102 is laid on the rollers. The rotation of the rollers can realize the transmission of the ion exchange membrane 102.

[0044] It should be noted that the type of driver is not unique; any device capable of driving the roller to rotate is acceptable. For example, in one embodiment, the driver may be a motor.

[0045] Please see Figure 3 In one embodiment, the system further includes an information prompting device 301, which is connected to the control device 105.

[0046] Specifically, in this embodiment, the ion exchange membrane defect detection system also includes an information prompting device 301, which is connected to the control device 105. When the control device 105 detects a defect in the ion exchange membrane 102, it controls the labeling mechanism 101 to label the ion exchange membrane 102, and at the same time, it can output a prompting signal through the information prompting device 301 to inform the user of this detection result so that the user can take timely action.

[0047] It should be noted that the type of information prompting device 301 is not unique. It can be an information prompting device 301 in the form of sound, light, etc. There is no specific limitation. It can be set according to actual needs.

[0048] In one embodiment, the system further includes a drive device connected to the control device 105 and the image acquisition device 104.

[0049] Specifically, considering that during actual testing, the image acquisition device 104 may shift due to device misalignment or other reasons when acquiring surface images of the ion exchange membrane 102, this embodiment includes a driving device connected to the image acquisition device 104. During testing, the driving device can drive the image acquisition device 104 to move, thereby achieving focus and ensuring the accuracy of the acquired surface images.

[0050] It is understood that the way the driving device drives the image acquisition device 104 is not unique. It can drive the image acquisition device 104 to move in the vertical direction, or drive the image acquisition device 104 to move in the horizontal direction, or drive the image acquisition device 104 to move in both the horizontal and vertical directions at the same time. No specific limitation is made.

[0051] It should be noted that the type of image acquisition device 104 is not unique. Any device or equipment capable of achieving precise surface image acquisition is acceptable. In one embodiment, the image acquisition device 104 is a line scan camera.

[0052] Specifically, a line scan camera is a camera that uses a line scan image sensor. A line scan image sensor is an image sensor in which pixels are arranged linearly along a one-dimensional direction, forming a thin spectral "scanning band." It can quickly complete data acquisition and processing, and is suitable for applications requiring one-dimensional image acquisition. Using a line scan camera, a moving ion exchange membrane 102 can be photographed. Then, the photoelectric signals acquired by each pixel are converted into digital signals for storage and processing, ultimately generating a conventional two-dimensional image, offering high acquisition reliability.

[0053] Please see Figure 4 In one embodiment, the control device 105 includes a controller 401 and an interactive display 402. The interactive display 402, the light source 103, the image acquisition device 104 and the labeling mechanism 101 are respectively connected to the controller 401 (not shown).

[0054] Specifically, the interactive display 402 is a display with interactive functions, which can be a mechanical button type display or a touch display, without any specific limitation.

[0055] In this embodiment, the control device 105 is configured to include a controller 401 and an interactive display 402. Thus, the defect detection parameters can be set autonomously through the interactive display 402, improving the operational convenience of the ion exchange membrane defect detection system.

[0056] Please see Figure 5 In one embodiment, the control device 105 further includes a memory 501, the controller 401 is connected to the memory 501, and the memory 501 is used to classify and store the defect detection results.

[0057] Specifically, the memory 501 is a device with storage function. In this embodiment, when performing defect detection on the ion exchange membrane 102, the controller 401 can classify and store different ion exchange membranes 102 according to the different defect types, so that users can browse historical detection data and generate personalized product quality reports when needed.

[0058] Please continue reading. Figure 5 In one embodiment, the control device 105 further includes a wireless communication device 502 connected to the controller 401.

[0059] Specifically, the wireless communication device 502 is a device with wireless communication capabilities. In practical scenarios, different ion exchange membrane defect detection systems can communicate with each other through the wireless communication device 502 to achieve data local area network sharing. Alternatively, the ion exchange membrane defect detection system can also use the wireless communication device 502 to send the defect detection results to a remote location (such as a server) for storage.

[0060] In one embodiment, the system further includes a terminal device that is communicatively connected to the control device 105.

[0061] Specifically, in this embodiment, the ion exchange membrane defect detection system also includes a terminal device communicatively connected to the control device 105. Through the terminal device, the user can remotely control the ion exchange membrane defect detection system, for example, by setting defect detection parameters. In another embodiment, the control device 105 can also send the defect detection results to the user for review.

[0062] It should be noted that the type of terminal device is not unique; it can be a mobile phone, tablet computer, or personal computer, etc., without any specific limitation.

[0063] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A defect detection system for ion exchange membranes, characterized in that, include: Labeling agency; Ion exchange membrane; light source; An image acquisition device is provided, wherein the light source is disposed opposite to the image acquisition device, and the ion exchange membrane is disposed between the light source and the image acquisition device, and the image acquisition device is used to acquire surface images of the ion exchange membrane; A control device is provided, wherein the light source, the image acquisition device, and the labeling mechanism are respectively connected to the control device. The control device is used to control the labeling mechanism to start labeling the ion exchange membrane when it is determined from the surface image that the ion exchange membrane has defects.

2. The ion exchange membrane defect detection system according to claim 1, characterized in that, The system further includes at least one transmission device connected to the control device, and the ion exchange membrane is disposed on the transmission device.

3. The ion exchange membrane defect detection system according to claim 2, characterized in that, The transmission device includes a driver and a roller, the ion exchange membrane is disposed on the roller, and the driver is connected to the control device.

4. The ion exchange membrane defect detection system according to claim 1, characterized in that, The system also includes an information prompting device, which is connected to the control device.

5. The ion exchange membrane defect detection system according to claim 1, characterized in that, The system also includes a drive unit connected to the control unit and the image acquisition unit.

6. The ion exchange membrane defect detection system according to any one of claims 1-5, characterized in that, The image acquisition device is a line scan camera.

7. The ion exchange membrane defect detection system according to any one of claims 1-5, characterized in that, The control device includes a controller and an interactive display, wherein the interactive display, the light source, the image acquisition device, and the labeling mechanism are respectively connected to the controller.

8. The ion exchange membrane defect detection system according to claim 7, characterized in that, The control device also includes a memory, and the controller is connected to the memory. The memory is used to classify and store the defect detection results.

9. The ion exchange membrane defect detection system according to claim 7, characterized in that, The control device also includes a wireless communication device connected to the controller.

10. The ion exchange membrane defect detection system according to any one of claims 1-5, characterized in that, The system also includes a terminal device, which is communicatively connected to the control device.

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