Converging nozzle for vanadium redox flow battery

Abstract

The confluence nozzle for the vanadium redox flow battery comprises an electrode column used for use and further comprises a backflow prevention assembly, and the backflow prevention assembly is installed on the electrode column; the anti-backflow assembly comprises a cylinder, a first annular groove, an insertion hole and a clamping groove, the cylinder sleeves the electrode column, the first annular groove is formed in the inner side of the cylinder, a first annular air bag is mounted in the first annular groove, a first inflation pipe is connected to one side of the first annular air bag, and a second annular groove is formed in the position, located on one side of the first annular groove, in the cylinder; a second annular air bag is installed in the second annular groove, a second inflation tube is connected to the second annular air bag, a plurality of clamping columns are installed at one end of the cylinder, mushroom heads are fixed to one ends of the clamping columns, the fixing ring is fixed to the electrode column, and a plurality of insertion holes are formed in the fixing ring. The sealing performance is good, the service life of the sealing structure is prolonged, and large-range disassembly operation is not needed.

Description

Technical Field

[0001] This utility model relates to a manifold, specifically a manifold for vanadium redox flow batteries. Background Technology

[0002] Vanadium redox batteries are redox batteries that use vanadium as the active material in a circulating liquid state. The electrical energy of a vanadium battery is stored as chemical energy in a sulfuric acid electrolyte containing vanadium ions in different valence states. An external pump forces the electrolyte into the battery stack, where it circulates within closed loops of different storage tanks and half-cells under mechanical power. A proton exchange membrane is used as the separator in the battery pack. The electrolyte solution flows parallel across the electrode surfaces and undergoes an electrochemical reaction. Current is collected and conducted through dual electrode plates, thus converting the chemical energy stored in the solution into electrical energy. However, the electrolyte inside the battery can easily flow back out at the terminal points, polluting the battery installation environment and reducing battery life. Furthermore, fixing the terminals is inconvenient. While some manifold sealing structures exist, leaks require disassembly and replacement of the sealing ring, which is cumbersome and the lifespan of the seals needs improvement. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a manifold for vanadium redox flow batteries, which effectively solves the problem that if leakage occurs in the existing manifold sealing structure, the manifold needs to be disassembled and the sealing ring replaced, which is cumbersome and the service life of the sealing components needs to be improved, which is not conducive to use.

[0004] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes an electrode post for use, and also includes an anti-backflow component, wherein the anti-backflow component is installed on the electrode post;

[0005] The anti-backflow assembly includes a cylinder, a first annular groove, a first annular airbag, a first inflation tube, a first inflation valve, a second annular groove, a second annular airbag, a second inflation tube, a second inflation valve, locking posts, mushroom heads, a fixing ring, insertion holes, and locking grooves. The cylinder is sleeved on the electrode post. The first annular groove is formed on the inner side of the cylinder. The first annular airbag is installed inside the first annular groove. The first inflation tube is connected to one side of the first annular airbag. A second annular groove is formed on one side of the first annular groove inside the cylinder. The second annular airbag is installed inside the second annular groove. The second inflation tube is connected to the second annular airbag. Several locking posts are installed at one end of the cylinder. A mushroom head is fixed at one end of each locking post. The fixing ring is fixed to the electrode post. Several insertion holes are formed on the fixing ring. A locking groove communicating with the insertion hole is formed on one side of the insertion hole.

[0006] Preferably, a first inflation valve is installed at one end of the first inflation tube.

[0007] Preferably, a second inflation valve is installed at one end of the second inflation tube.

[0008] Preferably, both the first inflation tube and the second inflation tube are embedded inside the cylinder.

[0009] Preferably, the diameter of the insertion hole is slightly larger than the diameter of the mushroom head.

[0010] Preferably, the diameter of the snap-fit ​​groove is smaller than the diameter of the mushroom head.

[0011] Beneficial Effects: During installation, the fixing ring is fixed at the electrode post installation position, and then the cylinder is sleeved onto the electrode post. Pushing the cylinder causes the mushroom-shaped head on one end of the cylinder to pass through the insertion hole on the fixing ring, allowing the mushroom-shaped head to pass through the fixing ring. After the mushroom-shaped head passes through, rotating the cylinder causes the stick to enter the locking groove, with the mushroom-shaped head positioned at the bottom of the locking groove for limiting its position, thus completing the installation. In use, an external air pump inflates the second inflation tube, which inflates the second annular airbag, resulting in a good seal at the connection between the cylinder and the electrode post. When battery fluid leaks at the electrode post connection, the first inflation tube inflates the first annular airbag, causing it to expand and reseal the connection. This eliminates the need for extensive disassembly, extending the service life of the sealing structure and improving usability. This invention features a novel and ingenious structure, facilitating the sealing of the manifold, providing excellent sealing performance, extending the service life of the sealing structure, and eliminating the need for extensive disassembly. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0014] Figure 2 This is a sectional view of the present invention;

[0015] Figure 3 This is a top view of the fixing ring of this utility model;

[0016] The following are the labels in the diagram: 1. Electrode post; 2. Anti-backflow assembly; 3. Cylinder; 4. First annular groove; 5. First annular airbag; 6. First inflation tube; 7. First inflation valve; 8. Second annular groove; 9. Second annular airbag; 10. Second inflation tube; 11. Second inflation valve; 12. Locking post; 13. Mushroom head; 14. Fixing ring; 15. Insertion hole; 16. Locking groove. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-3 The specific embodiments of this utility model will be described in further detail.

[0018] Example 1, by Figure 1-3 The present invention provides a manifold for a vanadium redox flow battery, including an electrode post 1 for use and an anti-backflow component 2, wherein the anti-backflow component 2 is installed on the electrode post 1.

[0019] The anti-backflow assembly 2 includes a cylinder 3, a first annular groove 4, a first annular airbag 5, a first inflation tube 6, a first inflation valve 7, a second annular groove 8, a second annular airbag 9, a second inflation tube 10, a second inflation valve 11, a locking post 12, a mushroom head 13, a fixing ring 14, a insertion hole 15, and a locking groove 16. The cylinder 3 is sleeved on the electrode post 1. The first annular groove 4 is formed on the inner side of the cylinder 3. The first annular airbag 5 is installed inside the first annular groove 4. One side of the first annular airbag 5... A first inflation tube 6 is connected to the cylinder 3. A second annular groove 8 is opened on one side of the first annular groove 4. A second annular airbag 9 is installed in the second annular groove 8. A second inflation tube 10 is connected to the second annular airbag 9. Several locking posts 12 are installed at one end of the cylinder 3. A mushroom head 13 is fixed at one end of the locking post 12. A fixing ring 14 is fixed on the electrode post 1. Several insertion holes 15 are opened on the fixing ring 14. A locking groove 16 communicating with the insertion hole 15 is opened on one side of the insertion hole 15.

[0020] A first inflation valve 7 is installed at one end of the first inflation tube 6 to facilitate the control of the first inflation tube 6.

[0021] A second inflation valve 11 is installed at one end of the second inflation tube 10 to facilitate the control of the second inflation tube 10.

[0022] The first inflation tube 6 and the second inflation tube 10 are both embedded inside the cylinder 3, which facilitates the installation and use of the first inflation tube 6 and the second inflation tube 10.

[0023] The diameter of the insertion hole 15 is slightly larger than the diameter of the mushroom head 13, so that the mushroom head 13 can pass through easily.

[0024] The diameter of the snap-fit ​​groove 16 is smaller than the diameter of the mushroom head 13, which facilitates snap-fit ​​and positioning of the mushroom head 13.

[0025] Working principle: During installation, the fixing ring 14 is fixed at the installation position of the electrode post 1, and then the cylinder 3 is sleeved on the electrode post 1. The cylinder 3 is pushed, and the mushroom head 13 on the locking post 12 at one end of the cylinder 3 passes through the insertion hole 15 opened on the fixing ring 14, so that the mushroom head 13 passes through the fixing ring 14. After the mushroom head 13 passes through, the cylinder 3 is rotated so that the locking post 12 enters into the locking groove 16, and the mushroom head 13 is located at the bottom of the locking groove 16 for limiting, thus completing the installation. In use, the second inflation tube 10 is inflated by an external air pump, thereby inflating the second annular airbag 9 through the second inflation tube 10, so that the connection between the cylinder 3 and the electrode post 1 has good sealing performance. When there is battery fluid leakage at the connection of the electrode post 1, the first annular airbag 5 is inflated by the first inflation tube 6, and the first annular airbag 5 is inflated and expanded for resealing. There is no need for extensive disassembly, which improves the service life of the sealing structure and is beneficial to use.

[0026] Beneficial effects: This utility model has a novel structure and ingenious design, which facilitates the sealing of the manifold, provides good sealing performance, and extends the service life of the sealing structure without the need for extensive disassembly.

[0027] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A manifold for a vanadium redox flow battery, comprising an electrode post (1) for use, characterized in that: It also includes an anti-backflow component (2), which is installed on the electrode post (1); The anti-backflow assembly (2) includes a cylinder (3), a first annular groove (4), a first annular airbag (5), a first inflation tube (6), a first inflation valve (7), a second annular groove (8), a second annular airbag (9), a second inflation tube (10), a second inflation valve (11), a locking post (12), a mushroom head (13), a fixing ring (14), a insertion hole (15), and a locking groove (16). The cylinder (3) is sleeved on the electrode post (1). The inner side of the cylinder (3) is provided with a first annular groove (4). The first annular airbag (5) is installed inside the first annular groove (4). 5) is connected to a first inflation tube (6) on one side. A second annular groove (8) is opened in the cylinder (3) on one side of the first annular groove (4). A second annular airbag (9) is installed in the second annular groove (8). A second inflation tube (10) is connected to the second annular airbag (9). Several locking pins (12) are installed at one end of the cylinder (3). A mushroom head (13) is fixed at one end of the locking pin (12). A fixing ring (14) is fixed on the electrode post (1). Several insertion holes (15) are opened on the fixing ring (14). A locking groove (16) communicating with the insertion hole (15) is opened on one side.

2. A manifold for a vanadium redox flow battery as described in claim 1, characterized in that: A first inflation valve (7) is installed at one end of the first inflation tube (6).

3. A manifold for a vanadium redox flow battery as described in claim 1, characterized in that: A second inflation valve (11) is installed at one end of the second inflation tube (10).

4. A manifold for a vanadium redox flow battery as described in claim 1, characterized in that: The first inflation tube (6) and the second inflation tube (10) are both embedded in the cylinder (3).

5. A manifold for a vanadium redox flow battery as described in claim 1, characterized in that: The diameter of the insertion hole (15) is slightly larger than the diameter of the mushroom head (13).

6. A manifold for a vanadium redox flow battery as described in claim 1, characterized in that: The diameter of the snap-fit ​​groove (16) is smaller than the diameter of the mushroom head (13).

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