Quick connector for vanadium redox flow battery module
The socket connection design using male and female connectors, clamps, and O-rings solves the problems of loose connections and poor sealing in vanadium redox flow battery modules, enabling fast and stable electrolyte pipeline connections and ensuring the safety and scalability of the battery system.
Patent Information
- Application Number
- CN202520040254.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Traditional vanadium redox flow battery module connection methods suffer from loose connections, easy loosening, and poor sealing, resulting in low energy transfer efficiency of the battery system and the risk of electrolyte leakage. Furthermore, existing connection methods make it difficult to achieve rapid connection and disconnection between pipes of different materials and between pipes and equipment.
The design incorporates a male and female connector, a connector clamp, and an O-ring. It achieves quick connection through a socket connection. The O-ring and female connector are interference-fitted, and the connector clamp is used for limiting and ensuring sealing. The one-time injection molding process improves connection accuracy and corrosion resistance.
It enables rapid and stable connection and disconnection of vanadium redox flow battery modules, reduces operation and maintenance costs, ensures the sealing and modular design of the electrolyte pipeline system, and facilitates expansion and maintenance.
Smart Images
Figure CN223595366U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of liquid flow battery, specifically relates to a quick connector for vanadium liquid flow battery module. BACKGROUND
[0002] In practical application, all-vanadium redox flow battery shows multiple advantages, such as long cycle life, easy to scale, fast response, free site selection and the like.These advantages make all-vanadium redox flow battery be successfully applied in many large-scale solar energy storage, wind power storage equipment, large-scale emergency power supply system and power system peak load shifting.However, with the continuous development and commercialization of vanadium flow battery technology, higher requirements are put forward for the connection efficiency and reliability of battery module.
[0003] As a key component for connecting battery modules, the performance of the quick connector directly affects the energy transmission efficiency between battery modules and the overall stability of the battery system.The traditional joint connection mode has problems such as loose connection, easy loosening and poor sealing, which not only reduces the energy transmission efficiency of the battery system, but also may cause safety hazards such as electrolyte leakage.
[0004] Generally, the elastic rubber ring is put on the sealing port of the pipe socket, and then the pipe end is inserted by applying force, forming a closed pipe that can adapt to a certain range of displacement and vibration.
[0005] Generally, the socket connection joint cannot be applied to pressure pipelines and cannot realize the connection between pipelines of different materials and between pipelines and equipment.The existing liquid flow battery module often has complex pipeline system, various materials and pressure-bearing pipeline, which needs to be bonded or heat fused, resulting in a long installation time.Therefore, a structure capable of quickly and stably connecting and disconnecting the pipelines between modules is needed to realize the scalability and easy maintenance of the modules. SUMMARY
[0006] To solve the above technical problems, the present application relates to a quick connector for vanadium liquid flow battery module, which includes a male head, a female head, a joint clamp and an O-ring, serves as a quick connection accessory for electrolyte pipeline system, realizes quick connection between different modules of battery system, and aims to simplify the installation, maintenance and expansion of electrolyte flow pipeline.
[0007] The technical scheme of the utility model is as follows:
[0008] A quick connector for vanadium liquid flow battery module includes a male head, a female head, a joint clamp and an O-ring, the male head and the female head adopt a socket connection form, the male head has two grooves for placing the O-ring.
[0009] Further, the male head is inserted into the female head concentrically, and the O-ring is in close contact with the inner wall of the female head to enhance the sealing effect.
[0010] Further, the O-ring is in interference fit with the female head.
[0011] Further, the material of the O-ring is fluororubber.
[0012] Further, the compression rate of the O-ring is controlled to be 15%-30%.
[0013] Further, the gap a between the joint clamp and the flange of the male head is ≤0.5mm.
[0014] Further, the gap b between the joint clamp and the flange of the female head is ≤0.5mm.
[0015] Further, the male head and the female head are connected with the pipeline and are both one-time injection molded.
[0016] The utility model has the beneficial effects compared with the prior art:
[0017] 1. Quick connection fitting:
[0018] The male head and the female head and the O-ring are respectively installed at both ends of the required connecting pipeline, and the pipeline is connected or disassembled in a concentric socket joint manner; the joint clamp is installed or removed before or after the connection, so that the quick connection or disconnection of the electrolyte flow path pipeline can be realized, without the need of complex tools, the installation operation time is shortened, and the operation and maintenance cost is significantly reduced.
[0019] 2. Modular design:
[0020] The quick joint can realize the modular design of the vanadium flow battery system, facilitates the expansion, and installs the female head at the inlet and outlet pipeline of each stack of the vanadium flow battery, installs the male head and the O-ring at the corresponding electrolyte inlet and outlet pipeline, connects the pipeline in a concentric socket joint manner, and installs and fixes the joint clamp after the connection. With the increase of the stacks, the adjacent modules can be easily connected. Each module can be easily integrated without interference.
[0021] 3. Pressure-proof and leakage-proof connection:
[0022] The quick joint ensures that the pipeline of the pressurized electrolyte pipeline system module is leakage-proof, and even during the rapid deployment or expansion of the system, the form of the socket joint and the double O-rings can also well maintain the sealing property of the electrolyte pipeline system. BRIEF DESCRIPTION OF DRAWINGS
[0023] The utility model will be further described in connection with the drawings and embodiments.
[0024] Figure 1 It is a quick joint assembly drawing;
[0025] Figure 2is a fast joint cross-sectional view;
[0026] Figure 3 is a fast joint exploded view;
[0027] Figure 4 is a joint gap schematic diagram, a represents the joint clip and the male head flange gap, and b represents the joint clip and the female head flange gap.
[0028] In the figure: 1. male head, 2. female head, 3. joint clip, 4. O-ring. DETAILED DESCRIPTION
[0029] The utility model will be described in detail below through specific embodiments, but it does not limit the protection scope of the utility model. Unless otherwise specified, the experimental methods used in the utility model are conventional methods, and the experimental equipment, materials, reagents, etc. used can be obtained from commercial channels.
[0030] Example 1
[0031] 1. Fast joint development
[0032] The purpose of the present application is to solve the problem of quick connection of vanadium flow battery module pipeline, which can be disassembled by simple operation, while ensuring the sealing of the connection without liquid leakage. Therefore, a kind of fast joint is provided, as shown in Figures 1-4 The figure shows that it includes male head 1, female head 2, O-ring 4 and joint clip 3. Male head 1 and female head 2 adopt socket connection form, in which male head 1 has two grooves for placing O-ring 4. The O-ring 4 of this structure selects the commonly used specifications on the market, not only the O-ring 4 outer diameter and female head 2 interference fit, but also the socket process smooth, after male head 1 concentrically inserted into female head 2, O-ring 4 can tightly contact the inner wall of female head 2 to enhance the sealing effect. Through experimental test, the results show that the material is fluorine rubber and the compression rate is best controlled in the range of 15%-30%, the sealing effect is best.
[0033] In order to avoid the vibration caused by the change of pipeline pressure or the factor of artificial collision, which causes the loose or separation of fast joint connection, and affects the normal use of the system, the joint clip 3 is needed to limit the connection of male head 1 and female head 2. Joint clip 3 is specially designed to prevent male head 1 and female head 2 from loosening. Through research test, when the flange gap a between joint clip 3 and male head 1 is ≤0.5mm, and the flange gap b between joint clip 3 and female head 2 is ≤0.5mm, the design requirements and convenient construction installation are met.
[0034] 2. Joint processing technology
[0035] Male head 1 and female head 2 are connected with pipeline, which adopts injection molding one-time forming, not only corrosion resistant, but also high cooperation precision, at the same time, product serialization and standardization can be realized, and the cost of parts is reduced. The parts with high precision requirements are processed twice.
[0036] 3. Joint performance
[0037] Performance test results: electrolyte pipeline system containing quick joint, no leakage of joint was found under the operation of 0-0.8 MPa experimental pressure range.
[0038] 4. Mainly solved pipe fitting technology and innovation
[0039] (1) Quick socket, better solve the need for bonding, hot melt and other complex operation in the process of installation and disassembly to shorten the installation operation time.
[0040] (2) Because of the socket connection, the male head 1 and the female head 2 can be different in connecting pipe material, which expands the pipe material selection range.
[0041] (3) Quick joint can be used for pressure pipeline.
[0042] The above described embodiments are only preferred embodiments of the present application, rather than all the embodiments of the present application which can be implemented. Any obvious changes made by those skilled in the art without departing from the principles and spirit of the present application should be considered to be included in the protection scope of the claims of the present application.
Claims
1. A quick connector for a vanadium flow battery module, characterized by, The utility model relates to a pipe joint, which comprises a male head (1), a female head (2), a joint clamp (3) and an O-ring (4), the male head (1) and the female head (2) are connected in the form of a socket joint, the male head (1) has two grooves for placing the O-ring (4).
2. The quick connect for a vanadium flow battery module of claim 1, characterized in that, The male head (1) is concentrically inserted into the female head (2), and the O-ring (4) is in close contact with the inner wall of the female head (2) to enhance the sealing effect.
3. The quick connect for a vanadium flow battery module of claim 1, characterized in that, The O-ring (4) is in interference fit with the female head (2) in terms of the outer diameter.
4. The quick connect for a vanadium flow battery module of claim 1, characterized by, The material of the O-ring (4) is fluorine rubber.
5. The quick connect for a vanadium flow battery module of claim 4, characterized by, The compression rate of the O-ring (4) is controlled to be 15%-30%.
6. The quick connect for a vanadium flow battery module of claim 1, characterized by, The gap a between the joint clamp (3) and the flange of the male head (1) is less than or equal to 0.5 mm.
7. The quick connect for a vanadium flow battery module of claim 1, characterized by, The gap b between the joint clamp (3) and the flange of the female head (2) is less than or equal to 0.5 mm.
8. The quick connect for a vanadium flow battery module of claim 1, characterized by, The male head (1) and the female head (2) are connected with pipes and are integrally formed by injection molding.