Device for fault diagnosis of flow battery

Abstract

The invention discloses a device for fault diagnosis of a flow battery, and relates to the field of battery testing and fault diagnosis, the device comprises a multi-channel charging and discharging tester with a protection insertion mechanism, and the multi-channel charging and discharging tester with the protection insertion mechanism is provided with a protection cover. Single battery blocks are uniformly arranged on one side of the multi-channel charging and discharging tester with the protective insertion mechanism, the single battery blocks are connected with a liquid inlet and outlet pipeline, a plurality of clamping plates are arranged on a sliding rod, a single battery fixing base can slide on a U-shaped base by rotating bolts on the two sides of the single battery fixing base, and the single battery blocks are connected with a liquid inlet and outlet pipeline. The U-shaped base slides to drive the clamping plates to synchronously slide on the sliding rods through mutual extrusion of the extrusion grooves and the extrusion columns, the bottoms of the liquid inlet and outlet pipelines slide on the guide sliding rails, and the two sides of the single battery blocks are placed between the clamping plates, so that each single battery block can be uniformly stressed by adjusting the distance between the clamping plates; and meanwhile, a plurality of single battery blocks can be quickly mounted by fastening the bolts at the two ends.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing and fault diagnosis, and particularly to a device for diagnosing faults in a flow battery. Background Art

[0002] A flow battery is a highly efficient and scalable energy storage technology with broad application prospects in power system peak shaving and frequency modulation, renewable energy utilization and grid connection, and distributed energy systems. The flow battery realizes the mutual conversion of chemical energy and electrical energy through the electrochemical reaction of the electrolyte inside the electrode, and has the advantages of decoupling of energy and power, long cycle life, and high safety. During the long-term operation of the flow battery, problems such as flow field blockage, internal short circuit, and sudden increase in local polarization may occur, which will lead to a decline in its performance and severely restrict its cycle stability and life.

[0003] The fault diagnosis technology of flow batteries usually uses voltage data as a measure of whether a fault occurs, and the voltage data mostly comes from single cell data and overall stack data. However, a flow battery system is composed of multiple stacks, and each stack is composed of multiple single cells. During operation, the electrolyte flow rate, concentration, etc. inside the single cells at different positions are different. Using the voltage data of a single cell for comparison will result in misjudgment of faults.

[0004] In addition, under the current technical background, although the fault diagnosis technology can identify the fault area to a certain extent, its limitations are still significant. Specifically, this technology can only roughly divide the area where the fault is located, but cannot accurately focus on the specific single cell position inside the stack. This shortcoming leads to the fact that in practical applications, maintenance personnel often need to spend extra time and effort to check each single cell in the fault area one by one, greatly reducing the efficiency and accuracy of fault handling. Therefore, there is an urgent need for a more refined and accurate fault diagnosis device to quickly and accurately locate the specific single cell position inside the stack.

[0005] Therefore, a device for diagnosing faults in a flow battery is proposed to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a device for diagnosing faults in a flow battery, so as to provide more accurate data reference and fault position information for the fault diagnosis of flow batteries.

[0007] To achieve the above object, the present invention provides the following technical solutions: A device for diagnosing faults in a flow battery, including a multi-channel charge and discharge tester with a protective insertion mechanism, a protective cover is installed on the multi-channel charge and discharge tester with a protective insertion mechanism, single battery blocks are evenly arranged on one side of the multi-channel charge and discharge tester with a protective insertion mechanism, an inlet and outlet liquid pipeline is connected to the single battery block, and further includes a quick installation and adjustment mechanism and a protective insertion mechanism; The quick installation and adjustment mechanism is arranged outside the inlet and outlet liquid pipeline, and the quick installation and adjustment mechanism is used for the quick installation and fixation of the single battery block; The protective insertion mechanism is arranged in the protective cover, and the protective insertion mechanism is used for the quick connection and protection of the electrode joints of the single battery block.

[0008] Preferably, the quick installation and adjustment mechanism includes a U-shaped base, a single battery fixing base is slidably connected to the outer surface of the U-shaped base, extrusion grooves are evenly opened on the single battery fixing base, extrusion columns are slidably connected in the extrusion grooves, a clamping plate is fixedly connected to one end of the extrusion column away from the extrusion groove, and sliding rods are symmetrically and fixedly connected in the U-shaped base.

[0009] Preferably, the clamping plates are evenly slidably connected to the outer surface of the sliding rods, guiding sliding rails are symmetrically and fixedly connected to the bottom of the U-shaped base, guiding grooves are symmetrically opened at the bottom of the single battery block, and the outer surfaces of the guiding sliding rails are slidably connected in the guiding grooves opened at the bottom of the single battery block.

[0010] Preferably, the protective insertion mechanism includes a pressing plate, an n-shaped plate is fixedly connected to the pressing plate, the bottom of the n-shaped plate is slidably connected in the protective cover, and a buffer spring is fixedly connected to one side of the n-shaped plate away from the pressing plate.

[0011] Preferably, a push plate is fixedly connected to one end of the buffer spring away from the n-shaped plate, the bottom of the push plate is slidably connected in the protective cover, arc grooves are opened at both ends of the push plate, and V-shaped plates are rotatably connected in the arc grooves at both ends of the push plate.

[0012] Preferably, the middle of the V-shaped plate is rotatably connected to the protective cover, one end of the V-shaped plate away from the push plate is rotatably connected to the n-shaped plate, reset springs are arranged on both sides of the push plate, and one end of the reset spring is fixedly connected to the push plate.

[0013] Preferably, the other end of the reset spring is fixedly connected in the protective cover, an arc-shaped slider is slidably connected to one side of the push plate away from the buffer spring, alligator clips are symmetrically slidably connected to one end of the arc-shaped slider away from the push plate, and anti-slip grooves are evenly opened on one side of the alligator clip away from the arc-shaped slider.

[0014] Compared with the prior art, a device for fault diagnosis of a flow battery provided by the present invention has the following beneficial effects: 1. In this solution, by arranging a plurality of clamping plates on the sliding rod, the single-cell fixing base can be slid on the U-shaped base by rotating the bolts on both sides of the single-cell fixing base. When the U-shaped base slides downward, the mutual extrusion between the extrusion groove and the extrusion column drives the clamping plates to slide synchronously on the sliding rod. Since both sides of the single-cell block are placed between the clamping plates, by adjusting the distance between the clamping plates, each single-cell block can be evenly stressed. At the same time, by tightening the bolts at both ends, multiple single-cell blocks can be quickly fixed; In this solution, through the way of sliding and extrusion, the distance between various components can be easily adjusted, making the fixation more flexible and accurate, and improving the installation efficiency.

[0015] 2. In this solution, by setting the pressing plate, the push plate can be driven to move in the opposite direction. The user only needs to gently press the pressing plate to open the push plate, which can not only quickly perform the plugging and unplugging of the interface, but also in the present invention, due to the elastic action of the reset spring and the buffer spring, the force on the pressing plate is more uniform and linear when pressed. At the same time, the protective cover outside the protective cover can reduce the pollution of the interface by dust, thereby reducing the potential safety hazard.

[0016] 3. In this solution, a quickly engageable protective plugging and unplugging mechanism is arranged on the multi-channel charge and discharge tester with a protective plugging and unplugging mechanism. Through the setting of the protective plugging and unplugging mechanism, the user only needs to simply press the pressing plate to complete the plugging of the connector. Compared with the prior art where the connector is engaged by a clip, since the surface of the clip is easily affected by dust and liquid before use, resulting in an increase in contact resistance, and at the moment of connection, because the current needs to pass through these poor contact points, local high temperature and discharge sparks may be generated; 4. The significant advantage of this solution lies in its precise and efficient fault diagnosis ability. By measuring the voltage of each single cell in the stack through a single channel and carefully comparing the measured voltage with the standard voltage of the single cell at the corresponding position in the device, once the difference between the two exceeds the preset maximum allowable deviation range, the position of the faulty single cell can be quickly and accurately located. This method not only improves the accuracy of fault diagnosis but also effectively shortens the time for fault troubleshooting, thereby ensuring the stable operation and maintenance efficiency of the stack system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is an auxiliary three-dimensional structure schematic diagram of the present invention; Figure 3 is an exploded schematic diagram of the structural connection relationship of the quick installation and adjustment mechanism of the present invention; Figure 4Schematic diagram of the structural connection relationship of the protection insertion mechanism of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of part A in Figure 6 Auxiliary schematic diagram of the structural connection relationship of the protection insertion mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of part B in

[0018] In the figure: 1. Charge and discharge tester with multi-channel protection insertion mechanism; 11. Single battery block; 12. Protective cover; 13. Liquid inlet and outlet; 2. Quick installation and adjustment mechanism; 21. U-shaped base; 22. Single battery fixing base; 23. Extrusion groove; 24. Extrusion post; 25. Clamping plate; 26. Slide bar; 27. Guide rail; 3. Protection insertion mechanism; 31. Pressing plate; 32. N-shaped plate; 33. Buffer spring; 34. Pushing plate; 35. V-shaped plate; 36. Reset spring; 37. Arc-shaped slider; 38. Alligator clip. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Next, the present invention will be further described in detail according to the drawings and embodiments.

[0021] First embodiment Please refer to Figures 1 to 7 as shown: To solve the problems mentioned in the technical solutions, the embodiment of the present application provides a device for diagnosing faults in a flow battery, including a charge and discharge tester 1 with multi-channel protection insertion mechanism. A protective cover 12 is installed on the charge and discharge cables of each channel of the charge and discharge tester 1 with multi-channel protection insertion mechanism. Single battery blocks 11 are evenly arranged on one side of the charge and discharge tester 1 with multi-channel protection insertion mechanism. The device further includes a quick installation and adjustment mechanism 2 and a protection insertion mechanism 3; The quick installation and adjustment mechanism 2 is arranged outside the single battery block 11, and the quick installation and adjustment mechanism 2 is used for the quick installation and fixation of the single battery block 11; The protection insertion mechanism 3 is arranged in the protective cover 12, and the protection insertion mechanism 3 is used for the quick connection and protection of the electrode connectors of the single battery block 11; Among them, the single cell block 11 mainly consists of an end plate, a current collector plate, a bipolar plate, an electrode frame, an electrode, and a separator. The single cell blocks 11 are stacked in the order of end plate - current collector plate - bipolar plate - electrode frame - electrode - separator - electrode - electrode frame - bipolar plate - current collector plate - end plate.

[0022] In this solution, by setting a protective plugging mechanism 3 that can be quickly engaged on the charge and discharge tester 1 with a multi-channel protective plugging mechanism, compared with the prior art where clamping is used for engagement, since the surface of the clamp itself is easily affected by dust and liquid before use, resulting in an increase in contact resistance. And at the moment of connection, because the current needs to pass through these poor contact points, local high temperature and discharge sparks may be generated. Through the design of this solution, not only can the interface be protected by the protective cover 12, but also due to the isolation and protection of the protective cover 12, it can prevent the contact end surface of the protective cover 12 from being covered with dust after use, reducing the generation of its discharge sparks.

[0023] Specifically, as Figure 4 shown, a single cell fixing base 22 is slidably connected to the outer surface of the U-shaped base 21. A plurality of extrusion grooves 23 are uniformly formed in the single cell fixing base 22. An extrusion column 24 is slidably connected in the extrusion groove 23. One end of the extrusion column 24 away from the extrusion groove 23 is fixedly connected to a clamping plate 25. Slide rods 26 are symmetrically and fixedly connected in the U-shaped base 21. The clamping plates 25 are uniformly slidably connected to the outer surface of the slide rods 26; Among them, threaded holes are formed on both sides of the single cell fixing base 22. Screws are threadedly connected in the threaded holes, and the bottoms of the screws are rotatably connected to both ends of the U-shaped base 21.

[0024] In this solution, by arranging a plurality of clamping plates 25 on the slide rods 26, by rotating the screws on both sides of the single cell fixing base 22, the single cell fixing base 22 can be slid on the U-shaped base 21. Through the mutual extrusion of the extrusion groove 23 and the extrusion column 24 during the sliding of the U-shaped base 21, the clamping plates 25 are driven to slide synchronously on the slide rods 26. Since both sides of the single cell block 11 are placed between the clamping plates 25, by adjusting the distance between the clamping plates 25, each single cell block 11 can be uniformly stressed. At the same time, by tightening the screws at both ends, multiple single cell blocks 11 can be quickly fixed; The prior art usually uses a series of screws for fixation, which is relatively troublesome to adjust. However, in this solution, through the method of sliding and extrusion, the distance between various components can be easily adjusted, making the fixation more flexible and accurate. Compared with the prior art, this solution only needs to tighten the screws at both ends to complete the quick installation of multiple single cell blocks 11, greatly improving the installation efficiency.

[0025] Further, as Figure 3As shown in the figure, guide rails 27 are symmetrically and fixedly connected to the bottom of the U-shaped base 21. Guide grooves are symmetrically formed at the bottom of the single battery block 11. The outer surface of the guide rail 27 is slidably connected to the guide groove formed at the bottom of the single battery block 11. Among them, the multi-channel charge and discharge tester 1 with a protective plug-in mechanism is provided with a plurality of connection channels, and each channel can be connected to the positive and negative electrodes on the single battery block 11.

[0026] In this solution, multiple channels are configured with independent interfaces, which can communicate and test with the positive and negative electrodes of different batteries simultaneously, read and display the status of each battery in real time, support parallel execution of different test items. In this solution, the number of channels is easily expandable through modular design to meet the test requirements of battery packs of different scales and improve the utilization rate of the equipment.

[0027] At the same time, each channel in the multi-channel charge and discharge tester 1 with a protective plug-in mechanism can be independently connected to the positive and negative electrodes of a single battery, supporting constant current / constant voltage charge and discharge testing of a single battery, precisely controlling parameters (such as current and voltage), independently analyzing performance data (such as capacity and efficiency), and at the same time avoiding the risk of cross-battery short circuit to ensure test safety.

[0028] Compared with the prior art, the quick installation and adjustment mechanism 2 provides a brand-new experience for charge and discharge testing with its flexibility and high efficiency. Whether it is the test requirements for a single or multiple single battery blocks 11, they can be perfectly met at this interface, and the quick plug-and-play design makes the test process easy and safe.

[0029] Specifically, as Figure 7 shown in the figure, an n-shaped plate 32 is fixedly connected to the pressure plate 31. The bottom of the n-shaped plate 32 is slidably connected in the protective cover 12. A buffer spring 33 is fixedly connected to the side of the n-shaped plate 32 away from the pressure plate 31. One end of the buffer spring 33 away from the n-shaped plate 32 is fixedly connected to a push plate 34. The bottom of the push plate 34 is slidably connected in the protective cover 12. Arc-shaped grooves are formed at both ends of the push plate 34. V-shaped plates 35 are rotatably connected in the arc-shaped grooves at both ends of the push plate 34. The middle of the V-shaped plate 35 is rotatably connected to the protective cover 12. One end of the V-shaped plate 35 away from the push plate 34 is rotatably connected to the n-shaped plate 32. Reset springs are arranged on both sides of the push plate 34. One end of the reset spring 36 is fixedly connected to the push plate 34. Among them, the V-shaped plates 35 are symmetrically arranged on both sides of the push plate 34. Pressing the pressure plate 31 to the left will drive the V-shaped plates 35 to drive the push plate 34 to slide to the right. The wires in the charge and discharge cable of a single channel of the charge and discharge tester are electrically connected to the push plate 34. The pressure plate 31 is made of insulating material.

[0030] In this solution, pressing the pressing plate 31 can drive the push plate 34 to move in the opposite direction. The user only needs to gently press the pressing plate 31 to open the push plate 34. Compared with the prior art, the user can not only quickly insert and remove the interface, but also in the present invention, due to the elastic action of the return spring 36 and the buffer spring 33, the force on the pressing plate 31 during pressing is more uniform and linear, enhancing the user experience. At the same time, the protective cover outside the protective cover 12 can reduce the pollution of the interface by dust, thereby reducing potential safety hazards.

[0031] Further, as Figure 5 shown, the other end of the return spring 36 is fixedly connected in the protective cover 12. A curved slider 37 is slidably connected to the side of the push plate 34 away from the buffer spring 33. Symmetrically slidably connected to the end of the curved slider 37 away from the push plate 34 are alligator clips 38. Anti-slip grooves are evenly formed on the side of the alligator clip 38 away from the curved slider 37. In this solution, by setting the curved slider 37 to slide in the arc groove of the push plate 34, and the alligator clips 38 to symmetrically slide in the curved slider 37, the alligator clips 38 can be rotated to clamp different interfaces. At the same time, through the anti-slip grooves formed in the curved slider 37, it can prevent the alligator clips 38 from falling off when connected to the connector. Through this solution, not only can different types of interfaces be clamped, but also the anti-drop of the interface can be realized.

[0032] Second Embodiment: Differing from the first embodiment, it is described below in combination with specific test steps. The specific test steps are as follows: First, connect the computer acquisition end to the acquisition end interface of the multi-channel charge and discharge tester 1 with a protective insertion and connection mechanism. At the same time, connect the electrode tab at the upper end of the single battery block 11 to the single-channel connecting wire with integrated positive and negative double wiring on the multi-channel charge and discharge tester 1 with a protective insertion and connection mechanism. And a protective insertion and connection mechanism 3 is provided on the positive and negative connections of each channel. That is, assemble the device according to the example in Figure 1, and connect each channel of the multi-channel charge and discharge tester 1 with a protective insertion and connection mechanism to the positive and negative tabs of each single battery 11 of the stack. It not only supports constant current / constant voltage charge and discharge tests on a single battery, accurately controls parameters (such as current, voltage), and independently analyzes performance data (such as capacity, efficiency), but also can avoid the risk of cross-battery short circuit and ensure test safety.

[0033] Second, perform a full battery test on the single battery. Inject the electrolyte into each battery, and at the same time set the same charge and discharge program for each channel. Ambient temperature: room temperature, keep constant temperature and humidity during the test During the experiment, the electrolyte flow rate is set to 0.5, 1.0, 1.5, 2.0 ml / min / cm 2, the current density is set to 50, 100, 150, 200 mA / cm 2 , repeat the above process. In each process, record the current and voltage data of each channel of the multi-channel charge and discharge tester with a protective plug-in mechanism as the basis for fault diagnosis.

[0034] Third, fault monitoring Analyze the voltage data during the charge and discharge cycle. When a fault occurs in the flow battery stack, measure the voltage of each single cell in the stack and compare it with the voltage of the single cell 11 at the corresponding position in the device. When the difference between the two is greater than the maximum allowable deviation, it can be considered that the single cell at this position in the stack has a fault.

[0035] The following is the specific implementation process of quickly installing the single cell block 11 in the U-shaped base 21 in the embodiment as follows: Specifically, as Figure 3 shown, first evenly place the single single cell block 11 between the clamping plates 25. When the single cell block 11 is evenly placed in the clamping plates 25 and the bottom of the single cell block 11 slides on the guiding slide rail 27, at this time, the operator manually rotates the tension bolt on the single cell fixing base 22. Since the bolt is threadedly connected to the single cell fixing base 22 and the bottom of the bolt rotates on the U-shaped base 21, when the bolt is rotated clockwise, it will drive the single cell fixing base 22 to slide downward along the outer surface of the U-shaped base 21. At this time, due to the extrusion grooves 23 symmetrically opened on the outer side of the U-shaped base 21, they start to squeeze the extrusion columns 24 downward. Since the extrusion columns 24 are fixedly connected to the clamping plates 25 and the clamping plates 25 slide evenly on the outer surface of the slide rod 26, the downward extrusion through the extrusion grooves 23 will drive the clamping plates 25 to start clamping the surface of the single cell block 11. When the single cell block 11 is fixed, stop rotating the bolt. This solution can easily adjust the distance between each component through the sliding and extrusion methods, making the fixation more flexible and accurate, and greatly improving the installation efficiency.

[0036] The following is the specific process of connecting the interface of the protective cover 12 on the multi-channel charge and discharge tester 1 with a protective plug-in mechanism to the positive and negative electrode interfaces of the single cell block 11 in the following implementation steps: When the single cell block 11 is evenly installed and fixed in the U-shaped base 21, at this time, when the operator connects the protective cover 12 in the multi-channel charge and discharge tester 1 with a protective plug-in mechanism to the positive and negative electrodes on the single cell block 11, as Figure 7As shown, at this time, the operator manually presses the pressing plate 31, which causes the pressing plate 31 to start moving to the left, and the pressing plate 31 drives the n-shaped plate 32 to slide to the left synchronously. At this time, the return springs 36 fixed on both sides of the n-shaped plate 32 begin to be compressed. At this time, since one end of the V-shaped plate 35 rotates on the n-shaped plate 32 and the other end rotates in the push plate 34, and since the middle part of the V-shaped plate 35 rotates on the protective cover 12, when the n-shaped plate 32 is pushed to the left, the V-shaped plate 35 drives the push plate 34 to slide to the right in the protective cover 12. At this time, since the arc-shaped slider 37 rotates on the push plate 34, and the arc-shaped slider 37 rotates symmetrically in the arc-shaped slider 37, when the electrode connector of the single battery block 11 is inserted into the protective cover 12, the operator releases the pressing plate 31 again, and the elastic extension of the return spring 36 and the buffer spring 33 drives the crocodile clip 38 to clamp on the electrode connector. In this solution, by setting an arc The shaped slider 37 slides in the arc groove of the push plate 34, and the crocodile clip 38 slides symmetrically in the arc slider 37. The crocodile clip 38 can be rotated to clamp different interfaces. At the same time, the anti-slip groove provided in the arc slider 37 can prevent the crocodile clip 38 from falling off the crocodile clip 38 and the connector when connected to the connector. The setting of this scheme can not only clamp different interface types, but also prevent the interface from falling off. At the same time, in this scheme, the pushing plate 34 can be driven to move in the opposite direction by setting a pressing plate 31. The user only needs to gently press the pressing plate 31 to open the pushing plate 34. Compared with the prior art, the user can not only quickly plug and unplug the interface, but also the elastic action of the reset spring 36 and the buffer spring 33 in the present invention can make the pressure on the pressing plate 31 more uniform and linear when pressed, and the protective cover outside the protective cover 12 can reduce the pollution of dust to the interface, thereby reducing safety hazards.

[0037] Please refer to the above process Figures 1 to 7 shown.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and permutations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for fault diagnosis of a flow battery, comprising a multi-channel charge and discharge tester (1) with a protective insertion mechanism. A protective cover (12) is installed on the multi-channel charge and discharge tester (1) with the protective insertion mechanism. Single battery blocks (11) are evenly arranged on one side of the multi-channel charge and discharge tester (1) with the protective insertion mechanism. An inlet and outlet liquid pipeline (13) is connected to the single battery blocks (11), and it is characterized in that, It also includes a quick installation and adjustment mechanism (2) and a protective insertion mechanism (3); The quick installation and adjustment mechanism (2) is arranged outside the liquid inlet and outlet pipeline (13), and the quick installation and adjustment mechanism (2) is used for the quick installation and fixation of the single battery block (11); The protective insertion mechanism (3) is arranged in the protective cover (12), and the protective insertion mechanism (3) is used for the quick connection and protection of the electrode joints of the single battery block (11).

2. The device for diagnosing faults in a flow battery according to claim 1, characterized in that: The quick installation and adjustment mechanism (2) includes a U-shaped base (21), a single battery fixing base (22) is slidably connected to the outer surface of the U-shaped base (21), extrusion grooves (23) are evenly formed in the single battery fixing base (22), an extrusion column (24) is slidably connected in the extrusion grooves (23), a clamping plate (25) is fixedly connected to one end of the extrusion column (24) away from the extrusion grooves (23), and sliding rods (26) are symmetrically and fixedly connected in the U-shaped base (21).

3. The device for diagnosing faults in a flow battery according to claim 2, characterized in that: The clamping plate (25) is evenly slidably connected to the outer surface of the sliding rod (26), guiding slide rails (27) are symmetrically and fixedly connected to the bottom of the U-shaped base (21), guiding grooves are symmetrically formed at the bottom of the single battery block (11), and the outer surfaces of the guiding slide rails (27) are slidably connected in the guiding grooves formed at the bottom of the single battery block (11).

4. The device for diagnosing faults in a flow battery according to claim 1, characterized in that: The protective insertion mechanism (3) includes a pressing plate (31), an n-shaped plate (32) is fixedly connected to the pressing plate (31), the bottom of the n-shaped plate (32) is slidably connected in the protective cover (12), and a buffer spring (33) is fixedly connected to one side of the n-shaped plate (32) away from the pressing plate (31).

5. The device for diagnosing faults in a flow battery according to claim 4, wherein: One end of the buffer spring (33) away from the n-shaped plate (32) is fixedly connected to a push plate (34), the bottom of the push plate (34) is slidably connected in the protective cover (12), arc-shaped grooves are formed at both ends of the push plate (34), and V-shaped plates (35) are rotatably connected in the arc-shaped grooves at both ends of the push plate (34).

6. The device for diagnosing faults in a flow battery according to claim 5, characterized in that: The middle of the V-shaped plate (35) is rotatably connected to the protective cover (12), one end of the V-shaped plate (35) away from the push plate (34) is rotatably connected to the n-shaped plate (32), reset springs (36) are arranged on both sides of the push plate (34), and one end of the reset spring (36) is fixedly connected to the push plate (34).

7. The device for diagnosing faults in a flow battery according to claim 6, characterized in that: The other end of the reset spring (36) is fixedly connected in the protective cover (12), and an arc-shaped slider (37) is slidably connected to one side of the push plate (34) away from the buffer spring (33).

8. The device for fault diagnosis of a flow battery according to claim 7, wherein: Crocodile clips (38) are symmetrically and slidably connected to one end of the arc-shaped slider (37) away from the push plate (34), and anti-slip grooves are evenly formed on one side of the crocodile clip (38) away from the arc-shaped slider (37).

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