Leakage protection structure for all-vanadium redox flow battery

Abstract

The utility model relates to the technical field of battery energy storage, and discloses a leakage protection structure for an all-vanadium redox flow battery, which comprises a cover plate arranged on a battery box, a battery body is arranged in the battery box, a collecting device is arranged in the battery box, and the collecting device comprises a flow guide plate, a flow guide plate and a flow guide plate, the connecting pipe is arranged on the guide plate; the liquid leakage box is arranged in the battery box, and the liquid leakage box is connected with the flow guide plate through the connecting pipe; the liquid leakage detector is arranged on the flow guide plate; the electric valve is arranged on the connecting pipe, and a separating device is arranged in the battery box. The protection structure can collect leaked liquid when the battery leaks liquid, and can avoid the problems of corrosion caused by soaking the battery body due to accumulation of the leaked liquid, influence on the health and the service life of the battery and potential safety hazards.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage, in particular to a leakage protection structure for an all-vanadium liquid flow battery. Background Art

[0002] The all-vanadium liquid flow battery is a redox battery with vanadium as the active substance in a circulating flowing liquid state. It has good charging and discharging performance, can be deeply discharged without damaging the battery, and the battery components are mostly made of cheap carbon materials and engineering plastics, with abundant material sources and easy recycling.

[0003] However, when the all-vanadium liquid flow battery leaks accidentally due to various reasons during use, it is currently mostly protected by an outer shell to prevent the leaked liquid from flowing in. However, this will cause the leaked liquid to accumulate in the outer shell, come into contact with the battery, and then corrode the battery, affecting the battery's service life and causing safety problems.

[0004] Therefore, we propose a leakage protection structure for all-vanadium liquid flow batteries to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a leakage protection structure for an all-vanadium liquid flow battery, which has the advantages of being able to collect the leaked liquid when the battery leaks and protect the battery, thereby solving the problem that when the all-vanadium liquid flow battery leaks, the battery itself is corroded, affecting its service life and causing safety hazards.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage protection structure for an all-vanadium liquid flow battery, comprising: a battery box with a cover plate arranged on it; a battery body arranged in the battery box, a collecting device arranged in the battery box, the collecting device comprising: a guide plate arranged on the inner wall of the battery box; a connecting pipe arranged on the guide plate; a leakage box arranged in the battery box, and the leakage box and the guide plate are connected through the connecting pipe; a leakage detector arranged on the guide plate; an electric valve arranged on the connecting pipe, and a separation device is arranged in the battery box.

[0009] In some embodiments, the separation device includes: a slide groove 1, which is opened on the inner wall of the battery box; a slider 1, which is slidably connected in the slide groove 1, and the battery body is located on the slider 1; a threaded rod, which is threadedly connected to the slider 1, and one end of the threaded rod passes through the battery box.

[0010] In some embodiments, a handle is provided at one end of the threaded rod passing through the battery box.

[0011] In some embodiments, the threaded rod is rotatably connected to the slide slot via a bearing.

[0012] In some embodiments, an alarm is provided on the side wall of the battery box.

[0013] In some embodiments, a support column is provided between the guide plate and the liquid leakage box.

[0014] In some embodiments, the guide plate is arranged in a "V"-shaped structure.

[0015] In some embodiments, a heat dissipation vent is provided on the cover plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a leakage protection structure for all-vanadium liquid flow battery, which has the following beneficial effects:

[0018] The leakage protection structure of the all-vanadium liquid flow battery is that when the battery leaks, the leaked liquid drips onto the guide plate, and a battery leakage alarm is issued through the leakage detector. At this time, the electric valve is opened to allow the leaked liquid to enter the leakage box through the connecting pipe. When the amount of leakage is large and the flow rate is greater than that of the connecting pipe and accumulates on the guide plate, the slider can be driven to move in the slide groove by rotating the threaded rod, and the battery body can be lifted and separated from the guide plate to avoid damage to the battery caused by the accumulation of leakage, affecting the service life and causing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0022] In the figure:

[0023] 110, battery box; 120, cover plate; 130, battery body;

[0024] 200, collecting device; 210, guide plate; 220, connecting pipe; 230, liquid leakage box; 240, liquid leakage detector; 250, electric valve; 260, alarm; 270, supporting column;

[0025] 300, separation device; 310, slide groove 1; 320, slider 1; 330, threaded rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] The electrical energy of vanadium batteries is stored in the form of chemical energy in a sulfuric acid electrolyte containing vanadium ions of different valence states. The electrolyte is pressed into the battery stack by an external pump and circulated in a closed loop of different storage tanks and half-cells under the action of mechanical power. A proton exchange membrane is used as the diaphragm of the battery pack. The electrolyte solution flows in parallel over the electrode surface and an electrochemical reaction occurs. The current is collected and conducted through the double electrode plates, thereby converting the chemical energy stored in the solution into electrical energy.

[0031] In the related art, when an all-vanadium liquid flow battery leaks, the leaking liquid is only protected by the shell to prevent it from flowing out. However, this will cause the leaked liquid to accumulate in the battery and corrode the battery itself inside the shell, thereby affecting the battery's service life and safety.

[0032] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a leakage protection structure for an all-vanadium liquid flow battery. When the all-vanadium liquid flow battery leaks, the leakage can be collected through the setting of the guide plate 210. The leakage detector 240 on the guide plate 220 generates an alarm to notify personnel that the battery is leaking. The electric valve 250 is opened, and the leakage flows into the leakage box 230 through the connecting pipe 220, so that the leakage can be collected. At this time, the threaded rod 330 can be rotated to drive the slider 320 to move in the slide groove 310, driving the battery body 130 to rise and separate from the guide plate 210, so as to avoid the leakage on the guide plate 210 from immersing the battery when a large amount of leakage occurs, corroding it, affecting the battery life and causing safety problems.

[0033] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0034] Combination Figure 1-Figure 3 The embodiment of the present application provides a leakage protection structure for an all-vanadium liquid flow battery, comprising: a cover plate 120 arranged on a battery box 110; a battery body 130 arranged in the battery box 110, a collecting device 200 is arranged in the battery box 110, and the collecting device 200 comprises: a guide plate 210 arranged on the inner wall of the battery box 110; a connecting pipe 220 arranged on the guide plate 210; a leakage box 230 arranged in the battery box 110, and the leakage box 230 and the guide plate 210 are connected through the connecting pipe 220; a leakage detector 240 is arranged on the guide plate 210; an electric valve 250 is arranged on the connecting pipe 220, and a separation device 300 is arranged in the battery box 110.

[0035] Specifically, the battery box 110 and the cover plate 120 are connected by a hinge, the guide plate 210 is glued and fixed to the battery box 110, the connecting pipe 220 and the leakage box 230 and the guide plate 210 are welded and connected, the leakage box 230 is glued and fixed in the battery box 110, and the leakage detector 240 is glued and fixed on the guide plate 210. When battery leakage passes through the leakage detector 240, an alarm will be sounded, and the electric valve 250 can be controlled to open and close by an external button.

[0036] During use, when the battery body 130 in the battery box 110 leaks, the leaked liquid falls onto the guide plate 210, and a leakage alarm is generated through the leakage detector 240. At this time, the electric valve 250 is opened, and the leaked liquid falls into the leakage box 230 through the connecting pipe 220 for collection, thereby preventing erosion and corrosion of the battery body 130, affecting the battery life and causing safety hazards.

[0037] In some embodiments, the separation device 300 includes: a slide groove 310 opened on the inner wall of the battery box 110; a slider 320 slidably connected in the slide groove 310, and the battery body 130 is located on the slider 320; a threaded rod 330 is threadedly connected to the slider 320, and one end of the threaded rod 330 passes through the battery box 110.

[0038] Specifically, one end of the threaded rod 330 is located in the slide groove 1 310 , and the battery body 130 is placed on the slide block 1 320 .

[0039] During use, when leakage accumulates on the guide plate 210, the threaded rod 330 can be rotated to drive the slider 320 to slide in the slide groove 310, thereby driving the battery body 130 to rise and separate from the guide plate 210, so as to prevent the leakage on the guide plate 210 from soaking the battery body 130 and causing corrosion, thereby affecting the health of the battery.

[0040] In some embodiments, the threaded rod 330 passes through one end of the battery box 110 and is provided with a handle.

[0041] Specifically, the turning handle is fixed to the threaded rod 330 by welding.

[0042] When in use, the threaded rod 330 can be driven to rotate more conveniently by turning the handle.

[0043] In some embodiments, the threaded rod 330 is rotatably connected to the slide slot 1 310 via a bearing.

[0044] When in use, the bearing can ensure that the threaded rod 330 rotates more smoothly in the slide groove 1 310 when the threaded rod 330 rotates.

[0045] In some embodiments, an alarm 260 is disposed on the side wall of the battery box 110 .

[0046] When in use, the alarm 260 can allow the leakage detector 240 to produce a better warning effect when it detects leakage, reminding personnel that the battery is leaking.

[0047] In some embodiments, a support column 270 is disposed between the guide plate 210 and the liquid leakage box 230 .

[0048] The support column 270 can better ensure the support stability of the guide plate 210 .

[0049] In some embodiments, the guide plate 210 is arranged in a "V"-shaped structure.

[0050] When in use, this structure allows the leaked liquid to flow better on the guide plate 210 and enter the connecting pipe 220 .

[0051] In some embodiments, a heat dissipation vent is disposed on the cover plate 120 .

[0052] When in use, the heat dissipation vents can ensure that the battery body 130 is not overheated and thus causes cracking, leakage, etc. when in operation.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0054] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leakage protection structure for an all-vanadium redox flow battery, characterized in that: include: A battery box (110) with a cover plate (120) disposed thereon; The battery body (130) is arranged in the battery box (110), and a collecting device (200) is arranged in the battery box (110), and the collecting device (200) comprises: A guide plate (210) is arranged on the inner wall of the battery box (110); A connecting pipe (220) is arranged on the guide plate (210); A liquid leakage box (230) is arranged inside the battery box (110), and the liquid leakage box (230) is connected to the guide plate (210) via the connecting pipe (220); A liquid leakage detector (240) is arranged on the guide plate (210); The electric valve (250) is arranged on the connecting pipe (220), and a separation device (300) is arranged in the battery box (110).

2. A leakage protection structure for an all-vanadium redox flow battery according to claim 1, characterized in that: The separation device (300) comprises: A slide groove (310) is provided on the inner wall of the battery box (110); A slider (320) is slidably connected to the slide groove (310), and the battery body (130) is disposed on the slider (320); A threaded rod (330) is threadedly connected to the slider (320), and one end of the threaded rod (330) passes through the battery box (110).

3. A leakage protection structure for an all-vanadium redox flow battery according to claim 2, characterized in that: One end of the threaded rod (330) that passes through the battery box (110) is provided with a turning handle.

4. A leakage protection structure for all-vanadium redox flow battery according to claim 2, characterized in that: The threaded rod (330) is rotatably connected to the slide groove 1 (310) via a bearing.

5. The leakage protection structure for all-vanadium redox flow battery according to claim 1, characterized in that: An alarm (260) is provided on the side wall of the battery box (110).

6. The leakage protection structure for all-vanadium redox flow battery according to claim 1, characterized in that: A support column (270) is provided between the guide plate (210) and the liquid leakage box (230).

7. The leakage protection structure for all-vanadium redox flow battery according to claim 1, characterized in that: The guide plate (210) is arranged in a "V"-shaped structure.

8. The leakage protection structure for all-vanadium redox flow battery according to claim 1, characterized in that: The cover plate (120) is provided with a heat dissipation opening.

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