Flow battery small stack loading auxiliary device

Abstract

The utility model relates to liquid flow battery small electric pile loading technology field discloses a kind of liquid flow battery small electric pile loading auxiliary device, including base, the side surface of base is hinged with compression screw, compression nut is arranged on the compression screw;Upper pressing plate is movably arranged above the base, and accommodating groove is formed in the side wall of upper pressing plate;Electrode liquid inlet and outlet hole and fastening screw hole are formed in upper pressing plate and the base;When working, small electric pile is placed between the base and the upper pressing plate, the compression screw is folded along hinged point and placed into the accommodating groove, and the compression nut is rotated and abuts on the upper pressing plate to complete pre-compression operation;The utility model can improve the sealing performance of electric pile, reduce the probability of electrolyte leakage, and avoid the repeated disassembly caused by poor sealing performance, the emergence of the problem of time-consuming and labor-saving, simple structure, easy to operate and use, strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of flow battery stacking technology, and in particular to an auxiliary device for flow battery stacking. Background Technology

[0002] With the rapid development of renewable energy and the continuous growth in energy storage demand, the flow battery market will continue to expand. The flow battery stack is the core component of a flow battery energy storage system; it is composed of multiple individual cells stacked and secured together using a filter press. Sealing performance is crucial during the flow battery stacking process.

[0003] Currently, existing stacking auxiliary devices are mainly designed for large flow battery stacks, with little research on stacking auxiliary devices for experimental small flow battery stacks. This results in poor sealing performance of the assembled stacks, requiring repeated disassembly and reassembly, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a stacking auxiliary device for small flow battery stacks that is simple in structure, easy to operate, and can improve the sealing performance of the stack and reduce electrolyte leakage. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for stacking small flow battery stacks, which can improve the sealing performance of the stack and reduce the probability of electrolyte leakage. At the same time, it avoids the problems of repeated disassembly and assembly due to poor sealing performance, which is time-consuming and laborious. The device has a simple structure, is easy to operate and use, and is highly practical.

[0005] The present invention adopts the following technical solution:

[0006] A flow battery stack assembly auxiliary device includes a base, a clamping screw hinged to the side of the base, and a clamping nut on the clamping screw; an upper pressure plate movably disposed above the base, and a receiving groove formed on the side wall of the upper pressure plate; electrode liquid inlet / outlet holes and fastening screw holes are formed on both the upper pressure plate and the base; during operation, the small battery stack is placed between the base and the upper pressure plate, the clamping screw is folded up along the hinge point and inserted into the receiving groove, and the clamping nut is rotated to abut against the upper pressure plate to complete the pre-clamping operation.

[0007] Preferably, the clamping nut is a wing nut.

[0008] Preferably, the clamping screws are hinged to all four sides of the base.

[0009] Preferably, a plurality of clamping screws are hinged to each side wall of the base.

[0010] Preferably, both the base and the upper pressure plate are provided with positioning holes.

[0011] Preferably, end plate grooves are provided on the opposite end faces of the base and the upper pressure plate.

[0012] Preferably, the receiving groove is a U-shaped groove.

[0013] Preferably, the top of the pressure plate is provided with a positioning groove coaxial with the receiving groove.

[0014] Preferably, a support frame is provided at the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By placing the assembly of the small flow battery stack between the base and the upper pressure plate, the upper pressure plate can be pre-tightened using the cooperation of the clamping screws and clamping nuts, which facilitates the subsequent fastening of the small stack; it makes the assembly process of the small stack more convenient and faster, saving assembly time and greatly improving work efficiency; at the same time, it reduces the problem of electrolyte leakage caused by poor sealing performance of the small stack; it also reduces the waste caused by electrolyte leakage; and it avoids the repeated disassembly and assembly caused by poor sealing performance, which is time-consuming and laborious. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the base structure according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the structure of the upper pressure plate when it is upright, according to an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the structure of the upper pressure plate when it is inverted in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the small fuel cell stack according to an embodiment of this application;

[0020] Figure 5 This is a state diagram used in the embodiments of this application. Detailed Implementation

[0021] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0022] like Figures 1 to 5As shown, the present invention provides an auxiliary device for stacking a small flow battery stack, comprising a base 1. Clamping screws 2 are hinged to the sides of the base 1, preferably arranged on the four sides of the base 1, with multiple screws evenly spaced on each side. Clamping nuts 3 are provided on the clamping screws 2, preferably wing nuts, to improve the convenience of manual adjustment during pre-clamping. An upper pressure plate 4 is movably arranged above the base 1, and a receiving groove 5 is formed on the side wall of the upper pressure plate 4. The receiving groove 5 has a U-shaped structure to facilitate... The clamping screw 2 enters the receiving groove 5 along the hinge point, and the upper pressure plate 4 is pre-pressed by rotating the clamping nut 3. Electrolyte inlet and outlet holes 6 and fastening screw holes 7 are provided on the upper pressure plate 4 and the base 1. The base 1 has two positive electrolyte inlet and outlet holes, and the upper pressure plate 4 has two negative electrolyte inlet and outlet holes. The fastening screw holes 7 are used to tighten the fastening screws on the small fuel cell stack after the initial assembly of the small fuel cell stack is completed and the upper pressure plate 4 is pre-pressed. The fastening screw holes 7 are used to tighten the fastening screws on the small fuel cell stack to complete the tight installation of the small fuel cell stack.

[0023] During operation, the components of the small fuel cell stack are placed on the base 1. After the small fuel cell stack is initially assembled in sequence, the upper pressure plate 4 is placed above the small fuel cell stack. The control clamping screw 2 is folded up along the hinge point and inserted into the receiving groove 5. The clamping nut 3 is rotated to abut against the upper pressure plate 4 to complete the pre-clamping operation. Finally, the fastening screws on the small fuel cell stack are tightened through the fastening screw holes 7.

[0024] Furthermore, in this embodiment, positioning holes 13 are provided through both the base 1 and the upper pressure plate 4. The positioning holes 13 are used for the placement of positioning rods during the assembly of the small fuel cell stack, facilitating the positioning of each component during assembly and ensuring the effectiveness of the small fuel cell stack assembly. In addition, end plate grooves 8 are provided on the opposite end faces of the base 1 and the upper pressure plate 4 for placing and positioning the upper end plate 9 of the small fuel cell stack, ensuring the stability of the small fuel cell stack during assembly.

[0025] In addition, the top of the upper pressure plate 4 is also provided with a positioning groove 10 coaxial with the receiving groove 5, which is used to position the clamping nut 3 and prevent the clamping nut 3 from moving out of the receiving groove 5 along with the clamping screw 2. The bottom of the base 1 is also provided with a support frame 11. The support frame 11 can provide support for the base 1, so that there is a certain distance between the bottom of the base 1 and the support surface, which reserves space for the outlet of the positive electrode electrolyte on the small battery stack.

[0026] In use, the base 1 is first placed on a horizontal surface, and the butterfly clamping nut 3 on the clamping screw 2 is adjusted to its longest position to complete the preparation work before assembling the small fuel cell stack. Then, the small fuel cell stack is assembled. The fastening screws are pre-inserted into the end plate 9 of the small fuel cell stack, and the end plate 9 of the small fuel cell stack is placed in the groove 8 of the auxiliary device base 1. The fastening screws 12 are placed in the fastening screw holes 7. The small fuel cell stack is assembled according to the stacking sequence. The positioning pins are positioned through the positioning holes 13 until the assembly of the small fuel cell stack is completed.

[0027] Next, place the upper pressure plate 4, ensuring that the groove 8 on the bottom of the upper pressure plate 4 is upside down on the end plate 9 of the small fuel cell stack. Adjust the clamping screws 2 on the base 1 into the U-shaped receiving groove 5 of the upper pressure plate 4, and tighten the clamping screws 2 diagonally to pre-tighten the small fuel cell stack.

[0028] Finally, after ensuring the small fuel cell stack is pre-compressed, tighten the fastening screws 12 through the fastening screw holes 7, and remove the upper pressure plate 4, thus completing the assembly of the small fuel cell stack.

Claims

1. A stacking auxiliary device for a small flow battery stack, characterized in that: The device includes a base, on which a clamping screw is hinged, and a clamping nut is provided on the clamping screw; an upper pressure plate is movably disposed above the base, and a receiving groove is formed on the side wall of the upper pressure plate; electrode liquid inlet and outlet holes and fastening screw holes are formed on both the upper pressure plate and the base; during operation, the small electrode stack is placed between the base and the upper pressure plate, the clamping screw is folded up along the hinge point and placed into the receiving groove, and the clamping nut is rotated to abut against the upper pressure plate to complete the pre-clamping operation.

2. The auxiliary device for stacking small flow battery stacks according to claim 1, characterized in that: The clamping nut is a wing nut.

3. The auxiliary device for stacking small flow battery stacks according to claim 1, characterized in that: The clamping screws are hinged to all four sides of the base.

4. The auxiliary device for stacking small flow battery stacks according to claim 3, characterized in that: The base has multiple clamping screws hinged to each side wall.

5. The auxiliary device for stacking small flow battery stacks according to claim 1, characterized in that: Both the base and the upper pressure plate are provided with positioning holes.

6. The auxiliary device for stacking small flow battery stacks according to claim 1, characterized in that: The base and the upper pressure plate are both provided with end plate grooves on their opposite end faces.

7. The auxiliary device for stacking small flow battery stacks according to claim 1, characterized in that: The accommodating groove is a U-shaped groove.

8. The auxiliary device for stacking small flow battery stacks according to claim 7, characterized in that: The pressure plate has a positioning groove on its top that is coaxial with the receiving groove.

9. The auxiliary device for stacking small flow battery stacks according to claim 1, characterized in that: The base is equipped with a support frame at its bottom.

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