Leaked liquid diversion and collection device
By designing a leakage diversion and collection device in the vanadium redox flow battery container, the problem of electrolyte accumulation and structural corrosion was solved, thereby improving safety and durability.
Patent Information
- Application Number
- CN202423087214.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-12
AI Technical Summary
When vanadium redox flow battery containers leak, the electrolyte can easily accumulate and corrode the container structure, posing a safety hazard and polluting the environment.
Design a leakage diversion and collection device, including an electrolyte storage tank, a container and leakage collection pipeline. By setting multiple diversion channels between the storage tank and the container, the leakage can be quickly diverted and collected into a leakage pool, avoiding electrolyte corrosion of the container structure.
This effectively avoids corrosion of the container and its internal structure by the electrolyte, improves the safety and durability of the system, and reduces the risk of environmental pollution.
Smart Images
Figure CN223539620U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid flow energy storage, and in particular to a leakage diversion and collection device. Background Technology
[0002] Vanadium redox flow batteries are widely used in large-scale energy storage systems due to their high efficiency and long lifespan, offering significant advantages in scenarios such as grid peak shaving, renewable energy grid integration, and off-grid power supply. This battery system uses vanadium ions as the active material in the electrolyte, achieving energy storage and release through the redox reaction of vanadium ions. To meet the demands of large-capacity energy storage, a large amount of electrolyte is typically stored in specially designed tanks and flow pipeline systems, and ultimately integrated into a capacity container.
[0003] However, due to the complexity of the fluid pipeline system and the potential for unforeseen circumstances in the storage tanks, electrolyte leaks may occur inside the container during operation. Traditional flow battery containers are inadequate in terms of leak protection. Once a leak occurs, the electrolyte can easily accumulate at the bottom or inside of the container, directly contacting the steel structure and floor. Even with anti-corrosion treatment inside the container, prolonged contact with large amounts of electrolyte can still corrode the steel structure, leading to reduced equipment durability and even safety hazards. Moreover, because the electrolyte contains highly corrosive acidic substances such as sulfuric acid or hydrochloric acid, leaks not only cause potential damage to internal components but may also seep through corroded steel plates, polluting the surrounding environment or triggering secondary leaks. Utility Model Content
[0004] To address the aforementioned problems in the prior art, this utility model proposes a leakage diversion and collection device for effectively collecting leaked liquid and preventing leakage accidents.
[0005] Specifically, this utility model proposes a leakage diversion and collection device, comprising,
[0006] An electrolyte storage tank having multiple first grooves extending from the outer wall to the bottom surface;
[0007] A container includes a bottom plate and a side plate connected to the bottom plate. The bottom plate has a through-hole and multiple second grooves located on the inner surface of the bottom plate. The multiple second grooves converge into the through-hole. An electrolyte storage tank is disposed inside the container. The outer side wall and bottom surface of the electrolyte storage tank are fitted with the side plate and bottom plate of the container so that the multiple first grooves cooperate with the side plate and the multiple second grooves of the container to form multiple flow channels that converge into the through-hole.
[0008] A leakage collection pipeline is installed outside the container and connected to the manifold. The leakage collection pipeline is used to collect leakage flowing through the guide channel and the manifold.
[0009] According to one embodiment of the present invention, the electrolyte storage tank is a cuboid, and the first grooves in the vertical direction are formed on the surface of the four outer side walls, with the two first grooves on opposite outer side walls arranged symmetrically.
[0010] According to one embodiment of the present invention, the first groove is a semi-circular groove.
[0011] According to one embodiment of the present invention, each of the second grooves includes a bending groove formed on the inner surface of the base plate and a leakage groove disposed in the bending groove.
[0012] According to one embodiment of the present invention, sealant is filled between the leakage groove and the bending groove.
[0013] According to one embodiment of the present invention, the bottom of the leakage tank is inclined toward the manifold.
[0014] According to one embodiment of the present invention, the flow collection device further includes a leakage sensor and a leakage alarm. The leakage sensor is used to acquire a leakage signal and send it to the leakage alarm. The leakage sensor is disposed in the second groove, and the leakage alarm is disposed on the outer surface of the container.
[0015] According to one embodiment of the present invention, the leakage collection pipeline includes a leakage funnel, a leakage pipeline, and a leakage pool. The leakage funnel is disposed on the bottom plate of the container through the confluence hole. Its top is connected to the multiple guide channels, and its bottom is connected to the leakage pipeline. The leakage pipeline is connected to the leakage pool. The leakage flowing into the guide channels enters the leakage pool through the leakage funnel and the leakage pipeline.
[0016] According to one embodiment of the present invention, the leakage funnel passes through the base plate and is inserted into the leakage pipeline.
[0017] According to one embodiment of the present invention, the leakage pool and part of the leakage pipeline are buried in the foundation below the container.
[0018] This utility model provides a leakage diversion and collection device that quickly diverts leakage from the container and guides it to the leakage collection pipeline through multiple preset diversion channels, thereby avoiding corrosion of the container and its internal structure by the electrolyte and improving the safety and durability of the system.
[0019] It should be understood that the above general description and the following detailed description of the present invention are exemplary and illustrative, and are intended to provide further explanation of the present invention as described in the claims. Attached Figure Description
[0020] The accompanying drawings are included to provide a further explanation of the present invention. They are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present invention and, together with this specification, serve to explain the principles of the present invention. In the drawings:
[0021] Figure 1 A top view of a container according to an embodiment of the present invention is shown.
[0022] Figure 2 Is Figure 1 A top view of the container after the electrolyte storage tank has been filled.
[0023] Figure 3 A schematic diagram of the structure of an electrolyte storage tank according to an embodiment of the present invention is shown.
[0024] Figure 4 A schematic diagram of a leakage collection pipeline according to an embodiment of the present invention is shown.
[0025] Figure 5 yes Figure 1 A schematic diagram of the structure of the second groove in the image.
[0026] Figure 6 yes Figure 1 A schematic diagram of the base plate.
[0027] The above figures include the following reference numerals:
[0028] Electrolyte storage tank 100
[0029] lateral wall 110
[0030] Bottom 120
[0031] First groove 130
[0032] Electrolyte pipeline 140
[0033] Container 200
[0034] Base plate 210
[0035] Manifold 211
[0036] Second groove 212
[0037] Bending groove 2121
[0038] Leakage tank 2122
[0039] Protrusion 2123
[0040] Side panel 220
[0041] Flow channel 230
[0042] Leakage sensor 240
[0043] Leakage alarm 250
[0044] Leakage collection pipeline 300
[0045] Leakage funnel 310
[0046] Leaking pipe 320
[0047] Leakage Pool 330 Detailed Implementation
[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0052] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0053] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.
[0054] Figure 1 A top view of a container according to an embodiment of the present invention is shown. Figure 2 Is Figure 1 A top view of the container after the electrolyte storage tank has been filled. Figure 3 A schematic diagram of the structure of an electrolyte storage tank according to an embodiment of the present invention is shown. Figure 4 A schematic diagram of a leakage collection pipeline according to an embodiment of the present invention is shown. As shown in the figure, a leakage diversion and collection device mainly includes an electrolyte storage tank 100, a container 200, and a leakage collection pipeline 300.
[0055] refer to Figure 3 An electrolyte storage tank 100 is used to store prepared electrolyte. The electrolyte storage tank 100 is cuboid in shape and has four outer side walls 110 and a bottom surface 120. The electrolyte storage tank 100 has multiple first grooves 130 extending from the outer side walls 110 to the bottom surface 120.
[0056] refer to Figure 1 and 2Container 200 is used to house electrolyte storage tank 100. By way of example and not limitation, container 200 can be a container. Container 200 includes a bottom plate 210 and side plates 220 connected to the bottom plate 210. The bottom plate 210 has a through-hole 211 and multiple second grooves 212 located on the inner surface of the bottom plate 210. The multiple second grooves 212 converge to the through-hole 211. Electrolyte storage tank 100 is adapted to be disposed within container 200. In this example, container 200 has a side plate 220 disposed in the middle of the bottom plate 210, connected to the outer side plates 220, dividing the interior of container 200 into two side-by-side spaces, each capable of accommodating one electrolyte storage tank 100.
[0057] The outer wall 110 and bottom surface 120 of the electrolyte storage tank 100 are fitted with the side plate 220 and bottom plate 210 of the container 200, so that multiple first grooves 130 cooperate with the side plate 220 and multiple second grooves 212 of the container 200 to form multiple guide channels 230 that converge to the confluence hole 211.
[0058] refer to Figure 4 The leakage collection pipe 300 is located outside the container 200. The leakage collection pipe 300 is connected to the manifold 211. The leakage collection pipe 300 is used to collect leakage flowing through the guide channel 230 and the manifold 211.
[0059] Conventionally, the electrolyte storage tank 100 is a PE rotomolded tank. The inlet and outlet of the electrolyte storage tank 100 are located at the top of the tank and are connected to other components of the battery system via the electrolyte pipeline 140. Therefore, leakage from the electrolyte storage tank 100 typically only occurs at its top. Leakage from the top of the electrolyte storage tank 100 is collected through the guide channel 230 to the manifold 211, and then enters the leakage collection pipeline 300 through the manifold 211. This leakage guide and collection device prevents leaked electrolyte from corroding the container 200 and its internal structure, improving the overall safety and durability of the system.
[0060] In some examples, reference Figure 3 The electrolyte storage tank 100 has vertically oriented first grooves 130 formed on the surfaces of its four outer side walls 110. Two first grooves 130 located on opposite outer side walls 110 are symmetrically arranged. This design ensures that regardless of where the electrolyte leaks from the top of the tank, it can be guided into the first grooves 130. Furthermore, the vertically oriented first grooves 130 utilize gravity to efficiently guide the leaking liquid downwards, ensuring that the leaking liquid leaves the surface of the electrolyte storage tank 100 promptly and preventing electrolyte accumulation at the top of the tank. The first grooves 130 on the bottom surface 120 of the electrolyte storage tank 100 intersect each other, with the intersection located above the manifold 211.
[0061] In some examples, the first groove 130 is a semi-circular groove. A semi-circular groove can better distribute stress when subjected to external pressure or internal liquid pressure, and is easier to manufacture. The electrolyte experiences relatively low flow resistance within the semi-circular groove, allowing it to flow more smoothly downwards along the surface of the outer wall 110 of the first groove 130.
[0062] Figure 5 yes Figure 1 A schematic diagram of the structure of the second groove in the image. Figure 6 yes Figure 1 A schematic diagram of the base plate. In some examples, each second groove 212 includes a bending groove 2121 and a drain groove 2122 disposed within the bending groove 2121. For example... Figure 6 As shown, the inner surface of the bottom plate 210 of container 200 has a bending groove 2121. A bent piece can be formed by bending the edge of a steel plate, and multiple bent pieces can be welded together to form a single bottom plate 210. The bending groove 2121 is recessed into the inner surface of the bottom plate 210, allowing the bottom surface 120 of the electrolyte storage tank 100 to fit more tightly against the bottom plate 210 of container 200. A leakage channel 2122 is shaped to match the bending groove 2121. The leakage channel 2122 is provided to drain leaked electrolyte, ensuring that the electrolyte does not directly contact the bottom plate 210 of container 200. This is because many electrolytes are corrosive, and direct contact with the bending groove 2121 could damage it. Preferably, sealant is filled between the leakage channel 2122 and the bending groove 2121 to seal the gap between them and prevent electrolyte seepage. Even better, the drain tank 2122 is made of PPH material, which can prevent electrolyte corrosion.
[0063] In some examples, the bottom of the drain trough 2122 is inclined towards the manifold 211. When the bottom of the drain trough 2122 is inclined towards the manifold 211, the liquid can flow to the manifold 211 more quickly under the influence of gravity, while reducing the amount of liquid remaining in the drain trough 2122. This design improves the overall efficiency of the drain collection. In this example, the four drain troughs 2122 have approximately 1 / 4 circle protrusions 2123 at the ends facing the manifold 211, and the four protrusions 2123 can be joined together to form a drain passage above the manifold 211.
[0064] In some examples, the leakage diversion and collection device also includes a leakage sensor 240 and a leakage alarm 250. The leakage sensor 240 is used to acquire a leakage signal and send it to the leakage alarm 250; the leakage sensor 240 is disposed within the second recess 212. The leakage alarm 250 is disposed on the outer surface of the container 200, for example, on the top of the side plate 220. The leakage alarm 250 receives the signal from the leakage sensor 240. Once a signal is received, the leakage alarm 250 can issue an audible and visual alarm to alert personnel that there is a leakage in the electrolyte storage tank 100, so that appropriate measures can be taken to avoid potential safety hazards and environmental damage caused by continuous leakage.
[0065] In some examples, such as Figure 4 As shown, the leakage collection pipeline 300 includes a leakage funnel 310, a leakage pipeline 320, and a leakage pool 330. The leakage funnel 310 is mounted on the bottom plate 210 of the container 200 through a manifold 211. The top of the leakage funnel 310 is connected to multiple guide channels 230, and its bottom is connected to the leakage pipeline 320. The leakage pipeline 320 is connected to the leakage pool 330. The leakage flowing into the guide channels 230 passes through the leakage funnel 310 and the leakage pipeline 320 and enters the leakage pool 330.
[0066] In some examples, the leakage funnel 310 passes through the base plate 210 and is inserted into the leakage conduit 320 to ensure that the electrolyte flows directly into the leakage collection conduit 300 when it flows out of the leakage funnel 310.
[0067] In some examples, the leakage pool 330 and part of the leakage conduit 320 are buried in the foundation below the container 200. Specifically, the leakage pool 330 is pre-buried in the foundation where the flow battery system is placed, one end of the leakage conduit 320 is connected to the leakage pool 330, and the other end extends upwards out of the ground and is close to the manifold 211. The leakage funnel 310 passes downwards through the base plate 210 and is inserted into the leakage conduit 320 to ensure that when the electrolyte flows out of the leakage funnel 310, it flows directly into the leakage collection conduit 300 and then into the leakage pool 330.
[0068] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.
Claims
1. A leakage diversion and collection device, characterized in that, include, An electrolyte storage tank having multiple first grooves extending from the outer wall to the bottom surface; A container includes a bottom plate and a side plate connected to the bottom plate. The bottom plate has a through-hole and multiple second grooves located on the inner surface of the bottom plate. The multiple second grooves converge into the through-hole. An electrolyte storage tank is disposed inside the container. The outer side wall and bottom surface of the electrolyte storage tank are fitted with the side plate and bottom plate of the container so that the multiple first grooves cooperate with the side plate and the multiple second grooves of the container to form multiple flow channels that converge into the through-hole. A leakage collection pipeline is installed outside the container and connected to the manifold. The leakage collection pipeline is used to collect leakage flowing through the guide channel and the manifold.
2. The flow guiding and collecting device as described in claim 1, characterized in that, The electrolyte storage tank is rectangular, and the first grooves in the vertical direction are formed on the surface of the four outer side walls. The two first grooves on opposite outer side walls are arranged symmetrically.
3. The flow guiding and collecting device as described in claim 1, characterized in that, The first groove is a semi-circular groove.
4. The flow guiding and collecting device as described in claim 1, characterized in that, Each of the second grooves includes a bending groove formed on the inner surface of the base plate and a leakage groove disposed within the bending groove.
5. The flow guiding and collecting device as described in claim 4, characterized in that, Sealant is filled between the leakage groove and the bending groove.
6. The flow guiding and collecting device as described in claim 4, characterized in that, The bottom of the leakage tank is inclined toward the manifold.
7. The flow guiding and collecting device as described in claim 1, characterized in that, It also includes a leak sensor and a leak alarm. The leak sensor is used to acquire a leak signal and send it to the leak alarm. The leak sensor is disposed in the second groove, and the leak alarm is disposed on the outer surface of the container.
8. The flow guiding and collecting device as described in claim 1, characterized in that, The leakage collection pipeline includes a leakage funnel, a leakage pipeline, and a leakage pool. The leakage funnel is installed on the bottom plate of the container through the confluence hole. Its top is connected to the multiple flow channels, and its bottom is connected to the leakage pipeline. The leakage pipeline is connected to the leakage pool. The leakage flowing into the flow channels passes through the leakage funnel and the leakage pipeline into the leakage pool.
9. The flow guiding and collecting device as described in claim 8, characterized in that, The leakage funnel passes through the base plate and is inserted into the leakage pipeline.
10. The flow guiding and collecting device as described in claim 8, characterized in that, The leakage pool and part of the leakage pipeline are buried in the foundation below the container.