A carbon felt electrode pore structure testing device for flow batteries

Abstract

This utility model discloses a testing device for the porosity of carbon felt electrodes used in flow batteries. The device includes a test shell with a liquid storage tank mounted on its bottom wall, and a self-testing mechanism. The self-testing mechanism includes an electronic scale, a weighing base, a test moving component, and a flipping component. The electronic scale is located on the left end of the bottom wall of the test shell, and the weighing base is located on the upper side of the electronic scale. The test moving component is located inside the test shell, and the flipping component is located inside the test moving component. A microcontroller and a display screen are located on the inclined surface of the test shell. The input terminal of the microcontroller is electrically connected to an external power supply, and the output terminal of the microcontroller is electrically connected to the input terminal of the display screen. This testing device for the porosity of carbon felt electrodes used in flow batteries, through the cooperation of its components, can automatically test the porosity of the carbon felt electrodes used in flow batteries, reducing the labor intensity of workers and exhibiting a high degree of automation.

Description

Technical Field

[0001] This utility model relates to the field of carbon felt electrode testing technology, specifically a device for testing the pore structure of carbon felt electrodes for flow batteries. Background Technology

[0002] Flow batteries, proposed by Thaller in 1974, are an electrochemical energy storage technology and a new type of battery. During the production of carbon felt electrodes for flow batteries, pore structure testing is required. This testing mainly includes detecting porosity, pore size distribution, and specific surface area. Currently, for some flow battery carbon felt electrodes, workers manually dry the sample and weigh it, recording the mass. Then, they manually immerse the electrode in a liquid for a certain period, allowing the liquid to penetrate the pores. Afterward, the electrode is removed and weighed again. The difference in mass before and after immersion, combined with the liquid density, is used to calculate the pore volume of the carbon felt electrode, thus determining its porosity. However, this method requires frequent manual intervention, increasing workload and resulting in low automation. Therefore, we propose a device for testing the pore structure of carbon felt electrodes for flow batteries. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a device for testing the porosity of carbon felt electrodes for flow batteries. This device can automatically test the porosity of carbon felt electrodes for flow batteries through the cooperation of various components, reducing the labor intensity of workers, and has a high degree of automation, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a test device for the pore structure of carbon felt electrode for flow batteries, comprising a test shell, wherein a liquid storage tank is installed on the bottom wall of the test shell, and a self-testing mechanism is also included.

[0005] The self-testing mechanism includes an electronic scale, a weighing base, a test moving component, and a flipping component. The electronic scale is located on the left side of the bottom wall of the test housing, and the weighing base is located on the upper side of the electronic scale. The test moving component is located inside the test housing, and the flipping component is located inside the test moving component. Through the cooperation of various components, this device can automatically test the porosity of carbon felt electrodes for flow batteries, reducing the labor intensity of workers and achieving a high degree of automation.

[0006] Furthermore, a microcontroller and a display screen are provided on the inclined surface of the test shell. The input terminal of the microcontroller is electrically connected to an external power supply, and the output terminal of the microcontroller is electrically connected to the input terminal of the display screen. The microcontroller is bidirectionally electrically connected to the electronic scale, which facilitates the control of the electrical components in the device.

[0007] Furthermore, the bottom wall of the test shell is provided with four locking seats, and the corners of the liquid storage tank are engaged with the adjacent locking seats to limit the position of the liquid storage tank.

[0008] Furthermore, the test moving assembly includes an electro-hydraulic actuator one, a pusher seat, a timer, an electro-hydraulic actuator two, a connecting seat one, an electro-hydraulic actuator three, a connecting seat two, a laser sensor one, and a laser sensor two. The pusher seat is set on the left wall of the test shell via the electro-hydraulic actuator one. The right wall of the test shell is provided with the connecting seat one via the telescopic end of the electro-hydraulic actuator two. The electro-hydraulic actuator three is located on the upper side of the connecting seat one. The telescopic end of the electro-hydraulic actuator three is provided with the connecting seat two. The input ends of the electro-hydraulic actuator one, electro-hydraulic actuator two, and electro-hydraulic actuator three are all electrically connected to the output end of the microcontroller. The laser sensor one is located on the right side of the connecting seat one, and the laser sensor two is located on the upper side of the connecting seat two. The front wall of the test shell is provided with a timer. The timer, laser sensor one, and laser sensor two are all bidirectionally electrically connected to the microcontroller, enabling the movement operation for porosity testing of the carbon felt electrode for the flow battery.

[0009] Furthermore, the flipping assembly includes a rotating shaft one, a flipping plate, a flipping seat, an electro-hydraulic actuator four, a synchronizing seat, a rotating shaft two, and a connecting rod. The flipping plate is rotatably connected to the lower right end of the connecting seat two via the rotating shaft one. The flipping seat is provided on the upper side of the flipping plate. The synchronizing seat is provided on the upper side of the connecting seat two via the telescopic end of the electro-hydraulic actuator four. The synchronizing seat and the flipping seat are rotatably connected by a connecting rod via the rotating shaft two. The input end of the electro-hydraulic actuator four is electrically connected to the output end of the microcontroller, and the carbon felt electrode for the immersed flow battery is tested and fed.

[0010] Furthermore, the flipping assembly also includes filter holes, which are uniformly opened on the upper surface of the flipping plate, so that excess liquid on the carbon felt electrode of the flow battery on the flipping plate can fall through the filter holes into the storage tank.

[0011] Furthermore, the upper rear end of the test shell is hinged to a flip cover by symmetrically distributed hinges, and a handle is provided on the upper side of the flip cover to facilitate the opening and closing of the flip cover of the test device for the pore structure of carbon felt electrode for flow battery.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This carbon felt electrode pore structure testing device for flow batteries has the following advantages:

[0013] When using the carbon felt electrode pore structure testing device for flow batteries, the electronic scale, weighing base, test moving component, and flipping component work together to automatically measure the initial mass of the carbon felt electrode for flow batteries and the subsequent mass measurement after immersion in liquid. By combining the control element with the liquid density data, the porosity of the carbon felt electrode for flow batteries can be automatically tested, reducing the labor intensity of the staff and achieving a high degree of automation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the rear internal structure of this utility model;

[0017] Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0018] In the diagram: 1 Test housing, 2 Microcontroller, 3 Display screen, 4 Card slot, 5 Liquid storage tank, 6 Self-testing mechanism, 61 Electronic scale, 62 Weighing seat, 63 Test moving component, 631 Electro-hydraulic actuator one, 632 Pusher seat, 633 Timer, 634 Electro-hydraulic actuator two, 635 Connecting seat one, 636 Electro-hydraulic actuator three, 637 Connecting seat two, 638 Laser sensor one, 639 Laser sensor two, 64 Flip assembly, 641 Rotating shaft one, 642 Flip plate, 643 Filter hole, 644 Flip seat, 645 Electro-hydraulic actuator four, 646 Synchronizing seat, 647 Rotating shaft two, 648 Connecting rod, 7 Flip cover, 8 Handle. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4This embodiment provides a technical solution: a test device for the porosity of carbon felt electrodes for flow batteries, including a test shell 1, a liquid storage tank 5 installed on the bottom wall of the test shell 1, a microcontroller 2 and a display screen 3 provided on the inclined surface of the test shell 1, the input end of the microcontroller 2 being electrically connected to an external power supply, the output end of the microcontroller 2 being electrically connected to the input end of the display screen 3, four card holders 4 provided on the bottom wall of the test shell 1, the corners of the liquid storage tank 5 being engaged with adjacent card holders 4, a flip cover 7 being hinged to the upper rear end of the test shell 1 by symmetrically distributed hinges, a handle 8 provided on the upper side of the flip cover 7, the position and distance data between the internal components of the device being input into the microcontroller 2, when testing the porosity of the carbon felt electrodes for flow batteries, firstly the operator places the dry carbon felt electrode on the upper middle part of the weighing base 62, then the operator drives the flip cover 7 to rotate around the hinge by the handle 8, thereby sealing the top of the device, and also includes a self-testing mechanism 6;

[0021] Self-testing mechanism 6: It includes an electronic scale 61, a weighing base 62, a test moving component 63, and a flipping component 64. The electronic scale 61 is located on the left side of the bottom wall of the test housing 1. The weighing base 62 is located on the upper side of the electronic scale 61. The test moving component 63 is located inside the test housing 1. The flipping component 64 is located inside the test moving component 63. The microcontroller 2 is bidirectionally electrically connected to the electronic scale 61. The test moving component 63 includes an electro-hydraulic actuator 631, a pusher seat 632, a timer 633, an electro-hydraulic actuator 634, a connecting seat 635, an electro-hydraulic actuator 636, a connecting seat 637, a laser sensor 638, and a laser sensor 639. The pusher seat 632 is located on the left wall of the test housing 1 via the electro-hydraulic actuator 631. The right wall of test housing 1 is provided with a connecting seat 635 via the telescopic end of electro-hydraulic actuator 2 634. An electro-hydraulic actuator 3 636 is located on the upper side of the connecting seat 1 635. A connecting seat 2 637 is located on the telescopic end of electro-hydraulic actuator 3 636. The input ends of electro-hydraulic actuator 1 631, electro-hydraulic actuator 2 634, and electro-hydraulic actuator 3 636 are all electrically connected to the output end of microcontroller 2. A laser sensor 1 638 is located on the right side of the connecting seat 1 635, and a laser sensor 2 639 is located on the upper side of the connecting seat 2 637. A timer 633 is located on the front wall of test housing 1. The timer 633, laser sensor 1 638, and laser sensor 2 639 are all bidirectionally electrically connected to microcontroller 2. The flipping assembly 64 includes a rotating shaft 1 641, a flipping plate 642, a flipping seat 644, and an electro-hydraulic actuator 3 636. The system includes a hydraulic actuator 645, a synchronizing seat 646, a rotating shaft 647, and a connecting rod 648. A tilting plate 642 is rotatably connected to the lower right end of a connecting seat 637 via a rotating shaft 641. A tilting seat 644 is located on the upper side of the tilting plate 642. A synchronizing seat 646 is located on the upper side of the connecting seat 637 via the telescopic end of the electro-hydraulic actuator 645. A connecting rod 648 rotatably connects the synchronizing seat 646 and the tilting seat 644 via a rotating shaft 647. The input end of the electro-hydraulic actuator 645 is electrically connected to the output end of the microcontroller 2. The tilting assembly 64 also includes filter holes 643, which are evenly distributed on the upper surface of the tilting plate 642. The microcontroller 2 activates an electronic scale 61 to measure the mass of the carbon felt electrode and transmits the measurement result as an electrical signal. The data is transmitted to the microcontroller 2, which then activates the electro-hydraulic actuator 634, causing its telescopic end to indirectly move the tilting plate 642 to the left via the connecting seat 635. During this process, the microcontroller 2 activates the laser sensor 638, which emits a light signal that illuminates the right side of the fixed end of the electro-hydraulic actuator 634 and reflects back to its initial position. Based on the propagation time and speed of the light signal, the lateral movement distance of the connecting seat 635 is measured. The laser sensor 638 then transmits the measurement result to the microcontroller 2 as an electrical signal. The microcontroller 2, based on the measurement result and the entered data, adjusts the extension distance of the telescopic end of the electro-hydraulic actuator 634 so that the left side of the tilting plate 642 is vertically aligned with the right side of the weighing seat 62.Subsequently, the microcontroller 2 activates the electro-hydraulic actuator 3 636, causing its extension end to indirectly drive the tilting plate 642 vertically downwards via the connecting seat 2 637. Simultaneously, the microcontroller 2 activates the laser sensor 2 639, which emits a light signal that illuminates the top wall of the connecting seat 1 635 and reflects back to its initial position. Using the same principle, the vertical movement distance of the connecting seat 2 637 is determined. The laser sensor 2 639 then transmits the measured result to the microcontroller 2 via an electrical signal. The microcontroller 2 adjusts the extension distance of the electro-hydraulic actuator 3 636 based on the measured result and the entered data, thereby ensuring that the upper side of the tilting plate 642 is horizontally aligned with the upper surface of the weighing seat 62. Then, the microcontroller 2 activates the electro-hydraulic actuator 1 636... 31. The telescopic end of the device drives the pusher seat 632 to move to the right, pushing the carbon felt electrode on the weighing seat 62 onto the tilting plate 642. Then, the microcontroller 2, using the same principle in conjunction with laser sensor 1 638 and laser sensor 2 639, controls the electro-hydraulic actuators 2 634 and 3 636, causing the tilting plate 642 to immerse the carbon felt electrode into the storage tank 5. At this time, the microcontroller 2 starts the timer 633 to time the immersion of the carbon felt electrode and transmits the timing to the microcontroller 2 via an electrical signal. When the microcontroller 2 detects that the carbon felt electrode has been immersed for a certain time, the microcontroller 2 starts the electro-hydraulic actuator 3 636 to move upward, causing the tilting plate 642 to move the carbon felt electrode out of the storage tank 5, and then allows it to stand still. Excess liquid on the surface of the carbon felt electrode falls off through the filter holes 643. Then, using the same principle, the microcontroller 2 moves the flip plate 642, which in turn moves the carbon felt electrode above the weighing base 62. The microcontroller 2 then activates the electro-hydraulic actuator 645, whose extension end moves the synchronous seat 646 downwards. During the downward movement of the synchronous seat 646, the flip plate 642 rotates downwards around the axis of the rotating shaft 641 via the rotating shaft 647, connecting rod 648, and flip plate 644. As the flip plate 642 rotates downwards, the wetted carbon felt electrode falls down the inclined surface of the flip plate 642 onto the weighing base 62. The microcontroller 2 then activates the electronic scale 61 to measure the mass of the wetted carbon felt electrode and transmits the measurement result electronically. The signal is transmitted to microcontroller 2. Microcontroller 2 subtracts the initial mass of the carbon felt electrode from the result and combines it with the density of the liquid to calculate the pore volume of the carbon felt electrode, thus achieving the porosity test of the carbon felt electrode. Microcontroller 2 then transmits this test result as an electrical signal to display screen 3 for easy data viewing by operators. Operators can then repeat the porosity test on the carbon felt electrode using the same principle and calculate the average value, thereby improving the accuracy of the porosity test for the carbon felt electrode in the flow battery. This device, through the coordinated operation of its components, can automatically test the porosity of carbon felt electrodes used in flow batteries, reducing the labor intensity of operators and exhibiting a high degree of automation.

[0022] The working principle of the carbon felt electrode pore structure testing device for flow batteries provided by this utility model is as follows: Data such as the positional distances between the various components inside the device are input into the microcontroller 2. When testing the porosity of the carbon felt electrode for flow batteries, the operator first places the dry carbon felt electrode on the upper center of the weighing base 62. Then, the operator drives the flip cover 7 to rotate around the hinge using the handle 8, thereby sealing the top of the device. The microcontroller 2 activates the electronic scale 61 to measure the mass of the carbon felt electrode and transmits the measurement result to the microcontroller 2 via an electrical signal. Subsequently, the microcontroller 2 activates the electro-hydraulic push rod 634, causing its extension end to indirectly drive the flip plate 642 to move to the left via the connecting seat 635. During this process, the microcontroller 2 activates the laser sensor. The laser sensor 638 emits a light signal that illuminates the right side of the fixed end of the electro-hydraulic actuator 634 and reflects back to its initial position. Based on the propagation time and speed of the light signal, the lateral movement distance of the connecting seat 635 is measured. The laser sensor 638 then transmits the measured result to the microcontroller 2 as an electrical signal. The microcontroller 2, based on the measured result and the entered data, adjusts the extension distance of the telescopic end of the electro-hydraulic actuator 634 so that the left side of the tilting plate 642 is vertically aligned with the right side of the weighing seat 62. Then, the microcontroller 2 activates the electro-hydraulic actuator 636, causing its telescopic end to indirectly move the tilting plate 642 vertically downwards via the connecting seat 637. Simultaneously, the microcontroller 2 activates the laser sensor 639. 39 emits a light signal that illuminates the top wall of connector 635 and reflects back to its initial position. Using the same principle, the vertical movement distance of connector 637 is determined. Then, laser sensor 639 transmits the measured result to microcontroller 2 as an electrical signal. Microcontroller 2 adjusts the extension distance of the telescopic end of electro-hydraulic actuator 636 based on the measured result and input data, thereby ensuring that the upper side of the tilting plate 642 is horizontally aligned with the upper surface of the weighing seat 62. Microcontroller 2 then activates electro-hydraulic actuator 631, causing its telescopic end to move the pusher seat 632 to the right, pushing the carbon felt electrode on the weighing seat 62 onto the tilting plate 642. Subsequently, microcontroller 2, using the same principle in conjunction with laser sensors 638 and 639, controls electro-hydraulic actuator 634 and the electro-hydraulic actuator... The third electro-hydraulic actuator 636 is adjusted so that the tilting plate 642 moves the carbon felt electrode into the storage tank 5. At this time, the microcontroller 2 starts the timer 633 to time the immersion of the carbon felt electrode and transmits the timing to the microcontroller 2 as an electrical signal. When the microcontroller 2 detects that the carbon felt electrode has been immersed for a certain time, the microcontroller 2 starts the third electro-hydraulic actuator 636 to move upward, so that the tilting plate 642 moves the carbon felt electrode out of the storage tank 5. Then it is left to stand, so that the excess liquid on the surface of the carbon felt electrode falls off along itself through the filter hole 643. Then, the microcontroller 2 uses the same principle to move the tilting plate 642 to move the carbon felt electrode above the weighing seat 62. Then, the microcontroller 2 starts the fourth electro-hydraulic actuator 645 so that its extension end moves the synchronous seat 646 downward. During the downward movement of the synchronous seat 646...The rotating plate 642 is rotated downwards around the axis of the rotating shaft 641 via the second rotating shaft 647, connecting rod 648, and rotating base 644. As the rotating plate 642 rotates downwards, the wetted carbon felt electrode falls along the inclined surface of the rotating plate 642 onto the weighing base 62. The microcontroller 2 then activates the electronic scale 61 to measure the mass of the wetted carbon felt electrode and transmits the measurement result to the microcontroller 2 as an electrical signal. The microcontroller 2 subtracts the initial mass of the carbon felt electrode from this result and combines it with the density of the liquid to calculate the pore volume of the carbon felt electrode, thus achieving a porosity test. The microcontroller 2 then transmits this test result to the display screen 3 as an electrical signal for display, facilitating data viewing by the operator. The operator can then repeat the porosity test on the carbon felt electrode using the same principle and calculate the average value, thereby improving the accuracy of the porosity test for the carbon felt electrode in the flow battery.

[0023] It is worth noting that the microcontroller 2 disclosed in the above embodiments can be an MCS-51, the display screen 3 can be a JBH686N002, the electronic scale 61 can be a RANGER7000, the electro-hydraulic actuators 631, 634, 636, and 645 can all be DYZW integral straight micro electro-hydraulic actuators, the timer 633 can be an H7ET small timer, and the laser sensor 638 and 639 can both be EE-SB5-B reflective photoelectric sensors. The microcontroller 2 controls the operation of the display screen 3, the electronic scale 61, the electro-hydraulic actuators 631, 634, 636, 645, the timer 633, the laser sensor 638, and the laser sensor 639 using methods commonly used in the prior art.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A carbon felt electrode pore structure testing device for flow batteries, characterized by: It includes a test shell (1), the bottom wall of which is equipped with a liquid storage tank (5), and also includes a self-testing mechanism (6); The self-testing mechanism (6) includes an electronic scale (61), a weighing seat (62), a test moving component (63), and a flipping component (64). The electronic scale (61) is located on the left side of the bottom wall of the test shell (1). The weighing seat (62) is located on the upper side of the electronic scale (61). The test moving component (63) is located inside the test shell (1). The flipping component (64) is located inside the test moving component (63).

2. A device for testing the pore structure of carbon felt electrodes for flow batteries according to claim 1, characterized in that: The test shell (1) has a microcontroller (2) and a display screen (3) on its inclined surface. The input terminal of the microcontroller (2) is electrically connected to an external power supply, and the output terminal of the microcontroller (2) is electrically connected to the input terminal of the display screen (3). The microcontroller (2) is bidirectionally electrically connected to the electronic scale (61).

3. The carbon felt electrode pore structure testing device for liquid flow batteries of claim 1, wherein: The bottom wall of the test shell (1) is provided with four card holders (4), and the corners of the liquid storage tank (5) are all engaged with the adjacent card holders (4).

4. The carbon felt electrode pore structure testing device for liquid flow batteries of claim 2, wherein: The test moving assembly (63) includes an electro-hydraulic actuator (631), a pusher seat (632), a timer (633), an electro-hydraulic actuator (634), a connecting seat (635), an electro-hydraulic actuator (636), a connecting seat (637), a laser sensor (638), and a laser sensor (639). The pusher seat (632) is mounted on the left wall of the test housing (1) via the electro-hydraulic actuator (631). The right wall of the test housing (1) is provided with a connecting seat (635) via the telescopic end of the electro-hydraulic actuator (634). An electro-hydraulic actuator (639) is mounted on the upper side of the connecting seat (635). 636), the telescopic end of the electro-hydraulic actuator three (636) is provided with a connecting seat two (637), the input ends of the electro-hydraulic actuator one (631), the electro-hydraulic actuator two (634) and the electro-hydraulic actuator three (636) are all electrically connected to the output end of the microcontroller (2), the right side of the connecting seat one (635) is provided with a laser sensor one (638), the upper side of the connecting seat two (637) is provided with a laser sensor two (639), the front wall of the test shell (1) is provided with a timer (633), the timer (633), the laser sensor one (638) and the laser sensor two (639) are all bidirectionally electrically connected to the microcontroller (2).

5. The device for testing the pore structure of a carbon felt electrode for a flow battery according to claim 4, characterized in that: The flipping assembly (64) includes a rotating shaft (641), a flipping plate (642), a flipping seat (644), an electro-hydraulic actuator (645), a synchronizing seat (646), a rotating shaft (647), and a connecting rod (648). The flipping plate (642) is rotatably connected to the lower right end of the connecting seat (637) via the rotating shaft (641). The flipping seat (644) is provided on the upper side of the flipping plate (642). The synchronizing seat (646) is provided on the upper side of the connecting seat (637) via the telescopic end of the electro-hydraulic actuator (645). The synchronizing seat (646) and the flipping seat (644) are rotatably connected by a connecting rod (648) via the rotating shaft (647). The input end of the electro-hydraulic actuator (645) is electrically connected to the output end of the microcontroller (2).

6. A carbon felt electrode pore structure testing device for liquid flow batteries according to claim 5, characterized in that: The flipping assembly (64) also includes filter holes (643), which are evenly distributed on the upper surface of the flipping plate (642).

7. The carbon felt electrode pore structure testing device for liquid flow batteries of claim 1, wherein: The test shell (1) has a flip cover (7) hinged to its upper rear end by symmetrically distributed hinges, and a handle (8) is provided on the upper side of the flip cover (7).

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