Movable all-vanadium redox flow battery pile test platform

Abstract

The utility model discloses a movable all-vanadium redox flow battery pile test platform which comprises a test pile, a rack, a liquid receiving tank, a pedal device, universal brake wheels, a pile lifting device, anti-slip strips, a pile fixing device and directional wheels, the test galvanic pile is placed on the rack and fixed through the galvanic pile fixing device, the galvanic pile lifting device and the liquid receiving tank are arranged below the test galvanic pile, the pedal device is arranged on one side of the rack, and the test platform is further provided with universal brake wheels and directional wheels. The movable galvanic pile test platform is simple in integral processing and installation, after the movable test platform is adopted, the use of a forklift in a laboratory is reduced, some unnecessary risks are avoided to a certain extent, in the galvanic pile test process, electrolyte in a pile is emptied in each cycle, so that self-discharge can be reduced to a certain extent, and the service life of the galvanic pile is prolonged. After the test is completed, the electrolyte in the galvanic pile can be better emptied through the lifting device and flows back into the storage barrel, so that the condition that the electrolyte flows out in the dismounting process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid flow batteries, and in particular relates to a movable test platform applied to an all-vanadium liquid flow battery stack. Background Art

[0002] As a secondary energy source, electric energy plays a vital role in social development and human production. With the continuous advancement of science and technology, renewable energy sources such as solar energy, wind energy, and tidal energy have been successfully applied to power generation facilities, providing a more environmentally friendly and sustainable energy option for our lives. The application of these renewable energy sources not only enriches the form of production capacity, but also helps to reduce dependence on traditional fossil energy and reduce greenhouse gas emissions. However, renewable energy is affected by the weather environment and has the disadvantages of random discontinuity and large volatility, which may lead to reduced power quality and reliability of the distribution network, thereby affecting the stability and safety of the power system. Therefore, it is necessary to store and release electric energy in the form of energy conversion.

[0003] All-vanadium liquid flow batteries are safe and reliable and can withstand deep discharge. They have a long life and can support nearly 20,000 cycles of charge and discharge. The system design is flexible and parameters such as battery power and capacity can be flexibly designed. The cost of the entire life cycle is low and the electrolyte will not be degraded during battery operation. The electrolyte can be recycled and reused. Therefore, they are very suitable for large-capacity, long-term energy storage systems.

[0004] After the design and assembly of the battery stack is completed, performance and life tests are required to provide a theoretical data basis for the subsequent mass production of the battery stack. When the existing all-vanadium liquid flow battery stack is undergoing performance and life tests, the stack is fixed to a wooden frame with a strapping tape and then placed directly on the ground. This method will increase the self-discharge of the battery stack during the battery stack test because the electrolyte is not completely discharged, causing errors in the test results. After the battery stack is tested, the electrolyte in the battery stack and the electrolyte in the pipeline still remains inside and cannot flow back into the storage tank. When the pipeline is disassembled, the electrolyte will flow out, bringing certain risks to the operator. In addition, if the electrolyte is not discharged for a long time, it will remain inside the battery stack, which poses certain safety hazards. Utility Model Content

[0005] The utility model discloses an all-vanadium liquid flow battery stack test platform. After the height of the tested stack is raised, the electrolyte in the stack is emptied in each cycle, which can reduce self-discharge to a certain extent. After the test is completed, the electrolyte flows back into the storage barrel, avoiding the outflow of electrolyte during the disassembly process.

[0006] The utility model adopts the following technical scheme, a movable all-vanadium liquid flow battery stack test platform, including a test stack, a frame, a liquid receiving tank, a pedal device, a universal brake wheel, a stack lifting device, an anti-slip strip, a stack fixing device, and a directional wheel;

[0007] The test stack is placed on a frame and fixed by a stack fixing device. A stack lifting device and a liquid receiving tank are provided below the test stack. A pedal device is provided on one side of the frame. The test platform is also provided with a universal brake wheel and a directional wheel.

[0008] As a preferred embodiment, the pedal device includes: a pedal, a pedal support plate, a buckle ball, a cotter pin, a buckle, and a pedal support frame. The pedal support plate is welded under the pedal, the pedal support frame is fixed to both sides of the pedal support plate by cotter pins, the buckle is fixed to both sides of the pedal by bolts, and the buckle ball is also fixed to the frame by bolts. The pedal is fixed when retracted by the buckle and the buckle ball. When the pedal is laid flat, it maintains a certain angle with the frame and is supported by the limit of the pedal support frame and the frame.

[0009] As a preferred embodiment, the battery stack lifting device includes: a lifting pad, a lifting beam, a screw pair, a lifting base, a screw, a handle, and a lifting bracket. The lifting bracket is fixed on the frame, the lifting base is fixed on the lifting bracket, the handle is connected to the screw, and the screw is driven by rotating the handle to make the screw move axially, and the lifting beam located on the screw pair opens and closes to realize the lifting and lowering of the test battery stack.

[0010] As another preferred embodiment, the battery stack fixing device includes: a fastening plate, a rubber pad, a nut, and an adjusting screw. The nut is fixed under the fastening plate by welding, and the base wooden frame of the test battery stack is tightened by the nut, rubber pad and adjusting screw.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The movable battery stack test platform described in the utility model is simple to process and install as a whole. After adopting the mobile test platform, the use of forklifts in the laboratory is reduced, and some unnecessary risks are avoided to a certain extent. During the battery stack test, emptying the electrolyte in the stack in each cycle can reduce self-discharge to a certain extent. After the test is completed, the lifting device can better empty the electrolyte in the battery stack and return it to the storage barrel, avoiding the outflow of electrolyte during the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a design schematic diagram of an all-vanadium liquid flow battery stack test platform;

[0014] Figure 2 It is a schematic diagram of the main axonometric view of a full-vanadium liquid flow battery stack test platform;

[0015] Figure 3 It is a rear axonometric diagram of a vanadium liquid flow battery stack test platform;

[0016] Figure 4 This is a schematic diagram of the test battery stack;

[0017] Figure 5 It is a schematic diagram of the pedal structure;

[0018] Figure 6 It is a schematic diagram of the structure of the battery stack lifting device;

[0019] Figure 7 This is a schematic diagram of the battery stack lifting angle;

[0020] Figure 8 It is a schematic diagram of the fixed structure of the test battery stack.

[0021] Markings in the figure: 1-test battery stack, 2-frame, 3-liquid receiving tank, 4-pedal device, 5-universal brake wheel, 6-battery stack lifting device, 7-anti-slip strip, 8-battery stack fixing device, 9-directional wheel, 11-battery stack fastening structure, 12-battery stack internal battery assembly, 13-battery stack end plate, 14-binding belt, 15-wooden frame, 41-pedal, 42-pedal support plate, 43-buckle bead, 44-cotter pin, 45-buckle, 46-pedal support frame, 61-lifting pad, 62-lifting beam, 63-screw pair, 64-lifting base, 65-screw, 66-handle, 67-lifting bracket, 81-fastening pressure plate, 82-rubber pad, 83-nut, 84-adjusting screw. DETAILED DESCRIPTION

[0022] In order to more clearly explain the purpose, technical solutions and advantages of the present disclosure, the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the following description of the embodiments is intended to explain and illustrate the overall concept of the present disclosure and should not be understood as a limitation of the present disclosure. In the specification and the drawings, the same or similar reference numerals refer to the same or similar parts or components. For the sake of clarity, the drawings are not necessarily drawn to scale, and some well-known parts and structures may be omitted in the drawings.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The wording "one" or "an" does not exclude multiple. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right", "top" or "bottom" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. When an element such as a layer, a film, a region or a substrate substrate is referred to as being "on" or "under" another element, the element may be "directly" located "on" or "under" another element, or there may be an intermediate element.

[0026] Example 1

[0027] As attached Figure 1 The figure shows a schematic diagram of the design of an all-vanadium liquid flow battery stack test platform. Placing the test stack higher is conducive to the electrolyte flowing back into the electrolyte storage tank, so as to reduce the problem of self-discharge and electrolyte outflow during disassembly.

[0028] As attached Figure 2 and attached Figure 3 As shown, a vanadium liquid flow battery stack test platform mainly includes: a test stack 1, a frame 2, a liquid receiving tank 3, a pedal device 4, a universal brake wheel 5, a stack lifting device 6, an anti-slip strip 7, a stack fixing device 8, and a directional wheel 9.

[0029] The test stack 1 is placed on the frame 2 and fixed by a stack fixing device 8. A stack lifting device 6 and a liquid receiving tank 3 are provided below the test stack 1. A pedal device 4 is provided on one side of the frame 2. The test platform is also provided with a universal brake wheel 5 and a directional wheel 9. An anti-slip strip 7 is also provided on the frame 2 where the test stack base is placed to assist in fixing the test stack.

[0030] As attached Figure 4 The figure shows a schematic diagram of a test battery stack, which mainly includes: a battery stack fastening structure 11, a battery stack internal battery assembly 12, a battery stack end plate 13, a strapping belt 14, and a wooden frame 15. The battery stack is assembled by the battery stack fastening structure 11, the battery stack internal battery assembly 12, and the battery stack end plate 13. After the assembly is completed, it is fixed to the wooden frame 15 by the strapping belt 14 to facilitate forklift transportation.

[0031] Example 2

[0032] A vanadium liquid flow battery stack test platform mainly includes: a test stack 1, a frame 2, a liquid receiving tank 3, a pedal device 4, a universal brake wheel 5, a stack lifting device 6, an anti-slip strip 7, a stack fixing device 8, and a directional wheel 9.

[0033] The test stack 1 is placed on the frame 2 and fixed by a stack fixing device 8. A stack lifting device 6 and a liquid receiving tank 3 are provided below the test stack 1. A pedal device 4 is provided on one side of the frame 2. The test platform is also provided with a universal brake wheel 5 and a directional wheel 9.

[0034] As attached Figure 5 The figure shows a schematic diagram of the pedal device structure, which mainly includes: a pedal 41, a pedal support plate 42, a buckle ball 43, a cotter pin 44, a buckle 45, and a pedal support frame 46. The pedal device is designed to facilitate circuit connection here. In order to increase the pedaling strength, the pedal support plate 42 is welded under the pedal 41, and the pedal support frame 46 is fixed to both sides of the pedal support plate 42 through the cotter pin 44. The buckle 45 is fixed to both sides of the pedal 41 by bolt connection. The buckle ball 43 is also fixed to the frame 2 by bolt connection. The pedal 41 is fixed when it is retracted by the buckle 45 and the buckle ball 43. When the pedal 41 is laid flat, it maintains an angle of 85° with the frame and is supported by the limit of the pedal support frame 46 and the frame 2.

[0035] Example 3

[0036] A vanadium liquid flow battery stack test platform mainly includes: a test stack 1, a frame 2, a liquid receiving tank 3, a pedal device 4, a universal brake wheel 5, a stack lifting device 6, an anti-slip strip 7, a stack fixing device 8, and a directional wheel 9.

[0037] The test stack 1 is placed on the frame 2 and fixed by a stack fixing device 8. A stack lifting device 6 and a liquid receiving tank 3 are provided below the test stack 1. A pedal device 4 is provided on one side of the frame 2. The test platform is also provided with a universal brake wheel 5 and a directional wheel 9.

[0038] As attached Figure 6The figure shows a schematic diagram of the structure of the stack lifting device, which mainly includes: a lifting pad 61, a lifting beam 62, a screw pair 63, a lifting base 64, a lead screw 65, a handle 66, and a lifting bracket 67. The function of the stack lifting device is to lift the end of the stack to a certain height after the stack test is completed, in order to further drain the electrolyte in the stack. The lifting bracket 67 is fixed on the frame 2, and the lifting base 64 is fixed on the lifting bracket 67. By rotating the handle 66, the lead screw 65 is driven to make the screw pair 63 move axially, and the lifting beam 62 located on the screw pair 63 opens and closes to realize the lifting and lowering of the stack. The function of the lifting pad 61 is to increase the effective area and reduce stress concentration. Figure 7 The figure shows a schematic diagram of the lifting angle of the battery stack. The residual electrolyte in the battery stack varies with the size of the battery stack, so the lifting angle can be adjusted by 1° to 5° according to the size of the battery stack to discharge the electrolyte in the stack more completely.

[0039] Example 4

[0040] A vanadium liquid flow battery stack test platform mainly includes: a test stack 1, a frame 2, a liquid receiving tank 3, a pedal device 4, a universal brake wheel 5, a stack lifting device 6, an anti-slip strip 7, a stack fixing device 8, and a directional wheel 9.

[0041] The test stack 1 is placed on the frame 2 and fixed by a stack fixing device 8. A stack lifting device 6 and a liquid receiving tank 3 are provided below the test stack 1. A pedal device 4 is provided on one side of the frame 2. The test platform is also provided with a universal brake wheel 5 and a directional wheel 9.

[0042] As attached Figure 8 The figure shows a schematic diagram of the test stack fixing device 8, which mainly includes: a fastening plate 81, a rubber pad 82, a nut 83, and an adjusting screw 84. The nut 83 is fixed under the fastening plate 81 by welding. The base wooden frame 15 of the test stack is compressed by the nut 83, the rubber pad 82 and the adjusting screw 84. The function of the rubber pad 82 is to increase friction and prevent deformation caused by direct contact between metals.

[0043] Example 5

[0044] A vanadium liquid flow battery stack test platform, the specific structure is as follows:

[0045] The test stack 1 is assembled by a stack fastening structure 11, a battery pack assembly 12 inside the stack, and a stack end plate 13, and is fixed to a wooden frame 15 by a strapping tape 14. The test stack 1 fixed to the wooden frame is placed on a rack 2 having an anti-slip strip 7 on the surface, and is fixed by a stack fixing device 8, wherein the stack fixing device 8 has a "concave"-shaped fastening plate 81, a rubber pad 82 is located on the inner wall of one side of the fastening plate 81, and a nut 83 is fixed under the fastening plate 81 by welding, and the base wooden frame 15 of the test stack 1 is pressed by the nut 83, the rubber pad 82 and the adjusting screw 84.

[0046] A stack lifting device 6 is provided below the end of the test stack 1. A lifting bracket 67 of the lifting device 6 is fixed on the frame 2. A lifting base 64 is fixed on the lifting bracket 67. A handle 66 is provided at one end of the lifting base 64. Rotating the handle 66 drives the lead screw 65 to move the screw pair 63 axially. A plurality of groups of lifting beams 62 capable of opening and closing movements are provided on the screw pair 63. A lifting pad 61 is also provided on the top of each group of lifting beams 62. The lifting pad 61 is in contact with the base wooden frame 15 of the test stack 1.

[0047] A pedal device 4 is provided on one side of the frame 2, a pedal support plate 42 is welded under the pedal 41, a pedal support frame 46 is fixed to both sides of the pedal support plate 42 by cotter pins 44, buckles 45 are fixed to both sides of the pedal 41 by bolts, and buckle bumpers 43 are also fixed to the frame 2 by bolts. The pedal 41 is fixed when retracted by the buckle 45 and the buckle bumper 43. When the pedal 41 is laid flat, it maintains an angle of 85° with the frame and is supported by the limit of the pedal support frame 46 and the frame 2.

[0048] A liquid receiving tank 3 is also arranged below the stack lifting device 6 of the test platform, and a universal brake wheel 5 and a directional wheel 9 are arranged at the bottom of the frame 2.

[0049] The test platform provided by the utility model can efficiently discharge the liquid in the tested battery stack to prevent the electrolyte from flowing out during disassembly. At the same time, the device can reduce the use of forklifts in the laboratory, and emptying the electrolyte in the stack in each cycle can reduce self-discharge to a certain extent and improve the accuracy of the test results.

[0050] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A portable all-vanadium liquid flow battery stack test platform, characterized in that: It comprises a test battery stack (1), a frame (2), a liquid receiving tank (3), a pedal device (4), a universal brake wheel (5), a battery stack lifting device (6), an anti-slip strip (7), a battery stack fixing device (8), and a directional wheel (9); The test stack (1) is placed on a frame (2) and fixed by a stack fixing device (8); a stack lifting device (6) and a liquid receiving tank (3) are provided below the test stack (1); a pedal device (4) is provided on one side of the frame (2); and the test platform is also provided with a universal brake wheel (5) and a directional wheel (9).

2. The portable all-vanadium liquid flow battery stack test platform according to claim 1 is characterized in that: The pedal device (4) comprises: a pedal (41), a pedal support plate (42), a buckle bumping ball (43), a split pin (44), a buckle (45), and a pedal support frame (46). The pedal support plate (42) is welded below the pedal (41). The pedal support frame (46) is fixed to both sides of the pedal support plate (42) through the split pin (44). The buckle (45) is fixed to both sides of the pedal (41) by bolt connection. The buckle bumping ball (43) is also fixed to the frame (2) by bolt connection. The pedal (41) is fixed when it is retracted by the buckle (45) and the buckle bumping ball (43). When the pedal (41) is laid flat, it maintains a certain angle with the frame and is supported by the limit of the pedal support frame (46) and the frame (2).

3. The portable all-vanadium liquid flow battery stack test platform according to claim 1 is characterized in that: The stack lifting device (6) comprises: a lifting pad (61), a lifting beam (62), a screw pair (63), a lifting base (64), a lead screw (65), a handle (66), and a lifting bracket (67). The lifting bracket (67) is fixed on the frame (2), the lifting base (64) is fixed on the lifting bracket (67), the handle (66) is connected to the lead screw (65), and the handle (66) is rotated to drive the lead screw (65) to make the screw pair (63) move axially, and the lifting beam (62) located on the screw pair (63) opens and closes, thereby realizing the lifting and lowering of the test stack (1).

4. The portable all-vanadium liquid flow battery stack test platform according to claim 1 is characterized in that: The battery stack fixing device (8) comprises: a fastening plate (81), a rubber pad (82), a nut (83), and an adjusting screw (84); the nut (83) is fixed below the fastening plate (81) by welding, and the base wooden frame (15) of the test battery stack is pressed by the nut (83), the rubber pad (82), and the adjusting screw (84).

5. The portable all-vanadium liquid flow battery stack test platform according to claim 1 is characterized in that: The test stack (1) is assembled from a stack fastening structure (11), a battery assembly (12) inside the stack, and a stack end plate (13), and is fixed to a wooden frame (15) by means of a strapping tape (14); the test stack (1) fixed to the wooden frame is placed on a rack (2) having an anti-slip strip (7) on the surface, and is fixed by means of a stack fixing device (8); the stack fixing device (8) has a "concave"-shaped fastening plate (81), a nut (83) is fixed under the fastening plate (81) by means of welding, and the wooden frame (15) of the base of the test stack (1) is pressed by means of the nut (83), a rubber pad (82), and an adjusting screw (84); A stack lifting device (6) is provided below the end of the test stack (1); a lifting bracket (67) of the lifting device (6) is fixed on the frame (2); a lifting base (64) is fixed on the lifting bracket (67); a rotating handle (66) is provided at one end of the lifting base (64); the rotating handle (66) drives a lead screw (65) to make the screw pair (63) move axially; a plurality of groups of lifting beams (62) capable of opening and closing are provided on the screw pair (63); a lifting pad (61) is also provided on the top of each group of lifting beams (62); the lifting pad (61) is in contact with a wooden frame (15) of the base of the test stack (1); A pedal device (4) is provided on one side of the frame (2), a pedal support plate (42) is welded below the pedal (41), a pedal support frame (46) is fixed to both sides of the pedal support plate (42) through a split pin (44), a buckle (45) is fixed to both sides of the pedal (41) by bolt connection, and a buckle bumper (43) is also fixed to the frame (2) by bolt connection, the pedal (41) is fixed when retracted by the buckle (45) and the buckle bumper (43), and the pedal (41) is kept at an angle of 85° with the frame when laid flat, and is supported by the limit of the pedal support frame (46) and the frame (2); A liquid receiving tank (3) is also provided below the battery stack lifting device (6) of the test platform, and a universal brake wheel (5) and a directional wheel (9) are provided at the bottom of the frame (2).

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