Rapid flux testing device for zinc-bromine flow battery diaphragm

Abstract

The utility model relates to the technical field of diaphragm flux testing, and discloses a rapid flux testing device for a zinc-bromine flow battery diaphragm, which comprises a base, a supporting seat arranged on the base, a first through hole arranged on the supporting seat, an exhaust pipe arranged at the bottom of the supporting seat and communicated with the first through hole, and a flowmeter arranged on the exhaust pipe. The top of the base is fixedly connected with a back plate, the top end of the back plate is connected with a control box, the bottom of the control box is provided with an outer pipe corresponding to the supporting seat, the base is internally provided with an air supply assembly communicated with the outer pipe, and the interior of the outer pipe is slidably connected with an inner pipe. Therefore, the diaphragm at the folding part of the pressing plate and the supporting seat is kept flat, the influence of wrinkles on the flux of the diaphragm is avoided, and the flattening structure replaces manual work, so that the flux measurement efficiency of the diaphragm is high, and the accuracy of a measurement result is high.

Description

Technical Field

[0001] This utility model relates to the field of membrane flux testing technology, specifically a rapid flux testing device for zinc-bromine flow battery membranes. Background Technology

[0002] Membrane flux refers to the amount of gas passing through a unit membrane area per unit time. In lithium-ion batteries and zinc-bromine flow batteries, the membrane flux has a significant impact on battery performance and lifespan. Therefore, strict measurements of the membrane are required before actual production.

[0003] The technical solution disclosed in Chinese Patent No. CN212207021U involves setting up a test unit tube assembly with a fixed cavity space. Upper and lower connectors are provided at both ends of the test liquid storage tube of the test unit tube assembly, employing a quick-connect sealing structure to prevent leakage. The one-to-one correspondence between the test tube assembly and the flux metering device enables simultaneous and rapid flux measurement of multiple diaphragms under test. The test time and pressure are controlled by applying a fixed external air pressure using a control valve and an external compressed air supply device.

[0004] However, the device still has shortcomings: it requires the installation of diaphragms one by one, and it is also necessary to ensure that the section of the diaphragm being tested is flat, which is time-consuming and labor-intensive. At the same time, the existing diaphragm flux measurement equipment requires manual placement of the diaphragm, which can easily cause wrinkles in the part of the diaphragm being tested, thus affecting the test data results. Utility Model Content

[0005] (a) Technical problems to be solved:

[0006] To address the shortcomings of existing technologies, this invention provides a rapid flux testing device for zinc-bromine flow battery separators, which has advantages such as automatic separator smoothing. It solves the problem that in existing separator flux measurement devices, the separator is manually placed, which can easily cause wrinkles in the tested area of ​​the separator, thus affecting the test data results.

[0007] (II) Technical Solution:

[0008] To achieve the aforementioned purpose of automatically smoothing the diaphragm, this utility model provides the following technical solution: it includes a base, a support seat on the base, a first through hole on the support seat, an exhaust pipe communicating with the first through hole at the bottom of the support seat, and a flow meter on the exhaust pipe, a back plate fixedly connected to the top of the base, a control box connected to the top of the back plate, an outer pipe corresponding to the support seat at the bottom of the control box, an air supply component communicating with the outer pipe inside the base, an inner pipe slidably connected inside the outer pipe, and a flattening component fixedly connected to the bottom of the inner pipe.

[0009] Preferably, the flattening assembly includes a pressure plate and vertical plates slidably connected to both sides of the pressure plate. The pressure plate is provided with a second through hole that is opposite to the first through hole and communicates with the inner tube. An annular sealing ring coaxial with the second through hole is provided on the outer periphery of the second through hole. Slide grooves are provided on both sides of the pressure plate and the vertical plates are not connected. Connecting rods are symmetrically provided on opposite sides of the two vertical plates. Two sliders are slidably connected in each of the two slide grooves. The two connecting rods are respectively inserted into the slide grooves on the corresponding sides and fixedly connected to the sliders on the corresponding sides. Springs are respectively sleeved on the outside of the two connecting rods between the two sliders and the inner wall of the slide groove on the adjacent side.

[0010] Preferably, each of the two vertical plates is rotatably connected to a rotating roller, and each of the two narrow sides of the two vertical plates is provided with a wheel hole. Each of the four wheel holes is rotatably connected to a roller shaft that is fixedly connected to the rotating roller. Each of the four roller shafts is fixedly connected to a ratchet. Each of the two narrow sides of the two vertical plates is provided with a storage hole that matches the wheel hole. A spring rod is provided in the storage groove. The movable end of the spring rod is connected to a ratchet tooth. The ratchet tooth is slidably connected to the inner wall of the storage groove, and the ratchet tooth matches the ratchet wheel.

[0011] Preferably, the support base has two vertical sides symmetrically arranged about the center of the first through hole, and an inclined side is provided between the upper end face of the support base and the vertical side on the corresponding side.

[0012] Preferably, the gas supply assembly includes a compressor, the output end of which is connected to an outlet pipe, the other end of which is connected to the interior of an outer pipe, and the connection between the outlet pipe and the outer pipe is located above the opening at the upper end of the inner pipe.

[0013] Preferably, an electric push rod is fixedly connected to the inner wall of the back plate, and the output end of the electric push rod is fixedly connected to the pressure plate.

[0014] Preferably, two dust covers are symmetrically arranged on the back plate and rotatably connected thereto. When closed, the dust covers on both sides work with the back plate to seal the operating space between the base and the control box.

[0015] Preferably, the dust cover is equipped with a handle, and both sides of the dust cover are equipped with iron plates. The base is equipped with a magnet corresponding to the magnet. When the dust cover is closed, the magnet and the iron plate are attracted to each other.

[0016] (III) Beneficial Effects:

[0017] Compared with the prior art, this utility model provides a rapid flux testing device for zinc-bromine flow battery separators, which has the following advantages:

[0018] This rapid flux testing device for zinc-bromine flow battery separators utilizes a support base with an inclined edge and two sets of elastically sliding vertical plates and rotating rollers symmetrically arranged on a pressure plate. The vertical plates also incorporate ratchet and ratchet teeth structures to restrict the unidirectional rotation of the rotating rollers. After the separator is placed on the support base, the pressure plate is pressed down, causing the rotating rollers to preferentially contact the separator. As the pressure plate decreases in height, the rotating rollers slide along the inclined edge, flattening the separator. When the rollers disengage from the inclined edge, they remain in contact with the vertical edge, effectively ensuring the separator remains taut. This ensures the separator remains flat at the point where the pressure plate and support base meet, preventing wrinkles from affecting the separator's flux. Furthermore, this smoothing structure replaces manual labor, resulting in high efficiency and accuracy in separator flux measurement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the support base and the exhaust pipe;

[0021] Figure 3 This is a schematic diagram of the connection structure of the various components on the pressure plate;

[0022] Figure 4 for Figure 3 Enlarged view of section A.

[0023] Reference numerals: 1. Base; 2. Support base; 201. First through hole; 202. Inclined side; 203. Vertical side; 3. Exhaust pipe; 4. Flow meter; 5. Back plate; 51. Dust cover; 6. Control box; 7. Outer pipe; 8. Compressor; 9. Outlet pipe; 10. Inner pipe; 11. Electric push rod; 12. Pressure plate; 121. Second through hole; 122. Slide groove; 13. Annular sealing ring; 14. Vertical plate; 15. Connecting rod; 16. Slider; 17. Spring; 18. Rotating roller; 181. Roller shaft; 19. Ratchet; 20. Spring rod; 21. Ratchet tooth. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1, please refer to Figure 1-4The system includes a base 1, a support 2 on the base 1, a first through hole 201 on the support 2, two vertical sides 203 symmetrically arranged about the center of the first through hole 201 on the support 2, and a bevel 202 between the upper end face of the support 2 and the corresponding vertical side 203. An exhaust pipe 3 communicating with the first through hole 201 is provided at the bottom of the support 2, and a flow meter 4 is installed on the exhaust pipe 3. A back plate 5 is fixedly connected to the top of the base 1, and a control box 6 is connected to the top of the back plate 5. An outer pipe 7 corresponding to the support 2 is provided at the bottom of the control box 6. An air supply assembly communicating with the outer pipe 7 is provided inside the base 1. An inner tube 10 is slidably connected inside the inner tube 10. The air supply assembly includes a compressor 8. The output end of the compressor 8 is connected to an outlet pipe 9. The other end of the outlet pipe 9 is connected to the inside of an outer tube 7. The connection between the outlet pipe 9 and the outer tube 7 is located above the opening at the upper end of the inner tube 10. A flattening assembly is fixedly connected to the bottom of the inner tube 10. Two sets of flattening assemblies cooperate with the support base 2 to flatten the diaphragm placed on the upper surface of the support base 2 during the process of the pressure plate 12 lowering in height. The flattening assembly includes a pressure plate 12 and vertical plates 14 slidably connected to both sides of the pressure plate 12. An electric push rod 11 is fixedly connected to the inner wall of the back plate 5. The output end of the electric push rod 11 is connected to the pressure plate 12. 2. Fixed connection: The pressure plate 12 is provided with a second through hole 121 that is opposite to the first through hole 201 and communicates with the inner tube 10. An annular sealing ring 13 coaxial with the second through hole 121 is provided on the outer periphery of the second through hole 121. The pressure plate 12 is provided with sliding grooves 122 on both sides of the vertical plate 14. Connecting rods 15 are symmetrically provided on opposite sides of the two vertical plates 14. Two sliders 16 are slidably connected in each of the two sliding grooves 122. The two connecting rods 15 are respectively inserted into the corresponding sliding grooves 122 and fixedly connected to the corresponding sliders 16. The two sliders 16 and the inner wall of the sliding groove 122 on the adjacent side are respectively provided with two connecting rods 15. 5. An external spring 17, two vertical plates 14 are rotatably connected to rollers 18 inside, two narrow sides of the two vertical plates 14 are provided with wheel holes, four wheel holes are rotatably connected to roller shafts 181 fixedly connected to rollers 181, four roller shafts 181 are fixedly connected to the outside of the four roller shafts 181, two narrow sides of the two vertical plates 14 are provided with storage holes that match the wheel holes, a spring rod is provided in the storage groove, the movable end of the spring rod is connected to a ratchet 21, the ratchet 21 is slidably connected to the inner wall of the storage groove, and the ratchet 21 is matched with the ratchet 19 to restrict the rollers 18 to rotate freely only when they go up along the surface of the inclined side 202.

[0026] In this embodiment, the rapid flux testing device for the zinc-bromine flow battery diaphragm first places the diaphragm to be tested directly on the upper surface of the support base 2 using the compressor 8, with both sides resting on the corresponding inclined sides 202. The electric push rod 11 is then activated to press down the pressure plate 12. The pressure plate 12 descends, causing the vertical plate 14 and the rotating roller 18 to descend as well. After the rotating roller 18 contacts the diaphragm on the inclined side 202, the pressure plate 12 continues to descend. At this point, the rotating roller 18 cannot rotate due to being locked by the ratchet 19 and ratchet 21, causing it to slide along the inclined side 202. The two rotating rollers 18 move in opposite directions, thus pulling the diaphragm from both sides. The diaphragm is stretched, and then the roller 18 squeezes the edge of the diaphragm and fits it against the vertical edge 203. The pressure plate 12 contacts the support base 2 and the two are pressed tightly together. The compressor 8 is started. When the pressure value of the compressor 8 reaches the set amount, gas is injected into the outer pipe 7 through the gas outlet pipe 9. The gas passes through the second through hole 121 and permeates the diaphragm. Then the gas that has permeated the diaphragm is discharged through the exhaust pipe 3. When the gas is discharged, the flow meter 4 automatically measures the discharge volume. The flow rate of the diaphragm can be obtained according to the discharge volume within the set time. After the measurement is completed, the pressure plate 12 moves upward, the roller rolls along the surface of the support base 2, and the two vertical plates 14 move closer to the reset state under the tension of the spring 17.

[0027] Example 2, as Figure 1 As shown, this utility model proposes a rapid flux testing device for a zinc-bromine flow battery separator. Compared to Embodiment 1, two dust covers 51 symmetrically arranged on the back plate 5 and rotatably connected thereto are provided. When closed, the dust covers 51, together with the back plate 5, seal the operating space between the base 1 and the control box 6. Each dust cover 51 has a handle, and each dust cover 51 has an iron plate. A magnet corresponding to the magnet is provided on the base 1. When the dust covers 51 are closed, the magnet and the iron plate are attracted to each other.

[0028] In this embodiment, when the equipment is not in use, closing the dust cover 51 can prevent dust from accumulating on the surface of the support base 2 and pressure plate 12 in the operating space, thereby preventing dust and other debris from affecting the subsequent diaphragm flux measurement.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flux rapid testing device for zinc-bromine flow battery separator, comprising a base (1), a supporting seat (2) is arranged on the base (1), characterized in that: The support base (2) is provided with a first through hole (201), the bottom of the support base (2) is provided with an exhaust pipe (3) communicated with the first through hole (201), and the exhaust pipe (3) is provided with a flow meter (4), the top of the base (1) is fixedly connected with a back plate (5), the top end of the back plate (5) is connected with a control box (6), the bottom of the control box (6) is provided with an outer pipe (7) corresponding to the support base (2), the inside of the base (1) is provided with a gas supply assembly communicated with the outer pipe (7), the inside of the outer pipe (7) is slidably connected with an inner pipe (10), and the bottom of the inner pipe (10) is fixedly connected with a flattening assembly.

2. A rapid flux testing device for a zinc-bromine flow battery separator according to claim 1, characterized in that: The flattening assembly comprises a pressing plate (12) and vertical plates (14) slidably connected to the two sides of the pressing plate (12), the pressing plate (12) is provided with a second through hole (121) opposite to the first through hole (201) and communicated with the inner pipe (10), the outer periphery of the second through hole (121) is provided with an annular sealing ring (13) coaxial with the second through hole (121), the two sides of the pressing plate (12) not connected with the vertical plates (14) are provided with sliding grooves (122), the opposite sides of the two vertical plates (14) are symmetrically provided with connecting rods (15), the two sliding grooves (122) are slidably connected with two sliding blocks (16), the two connecting rods (15) are respectively inserted into the sliding grooves (122) on the corresponding sides and fixedly connected with the sliding blocks (16) on the corresponding sides, and the two sliding blocks (16) and the inner walls of the sliding grooves (122) on the adjacent sides thereof are provided with springs (17) respectively sleeved on the outer sides of the two connecting rods (15).

3. A rapid flux testing device for a zinc-bromine flow battery separator according to claim 2, characterized in that: The inside of each vertical plate (14) is rotatably connected with a rotating roller (18), the two narrow sides of each vertical plate (14) are provided with wheel holes, the four wheel holes are rotatably connected with roller shafts (181) fixedly connected with the rotating rollers (18), the outer sides of the four roller shafts (181) are fixedly connected with ratchets (19), the two narrow sides of each vertical plate (14) are provided with storage holes matched with the wheel holes, the storage grooves are provided with spring rods, the movable ends of the spring rods are connected with ratchets (21), the ratchets (21) are slidably connected with the inner walls of the storage grooves, and the ratchets (21) are matched with the ratchets (19).

4. The rapid flux testing device for a zinc-bromine flow battery separator of claim 1, wherein: The support base (2) is provided with two vertical edges (203) symmetrically arranged about the center of the first through hole (201), and the support base (2) is provided with an inclined edge (202) between the upper end face and the vertical edge (203) on the corresponding side.

5. The rapid flux testing device for a zinc-bromine flow battery separator of claim 1, wherein: The gas supply assembly comprises a compressor (8), the output end of the compressor (8) is communicated with an air outlet pipe (9), the other end of the air outlet pipe (9) is communicated with the inside of the outer pipe (7), and the communication position of the air outlet pipe (9) and the outer pipe (7) is located above the upper end opening of the inner pipe (10).

6. A rapid flux testing device for a zinc-bromine flow battery separator according to claim 2, characterized in that: The inner wall of the back plate (5) is fixedly connected with an electric push rod (11), and the output end of the electric push rod (11) is fixedly connected with the pressing plate (12).

7. The rapid flux testing device for a zinc-bromine flow battery separator of claim 1, wherein: The back plate (5) is symmetrically provided with two dust covers (51) rotatably connected thereto, and the two dust covers (51) in the closed state cooperate with the back plate (5) to close the operation space between the base (1) and the control box (6).

8. A rapid flux testing device for a zinc-bromine flow battery separator according to claim 7, characterized in that: The dustproof cover (51) is provided with a handle, and iron sheets are arranged on both sides of the dustproof cover (51); a magnet corresponding to the magnet is arranged on the base (1), and the magnet and the iron sheet are attracted to each other in the closed state of the dustproof cover (51).

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