Porous medium air floatation experimental device

Abstract

This application relates to a porous media air flotation experimental device. The device includes a base, an air flotation roller, a cover, a first clamp, a second clamp, and a tension adjustment component. The air flotation roller, the first clamp, and the second clamp are mounted on the base. The air flotation roller includes a roller body, an air inlet, and an air outlet pipe. Multiple air outlet holes are formed on the surface of the roller body, and an air cavity is formed inside the roller body. The air outlet pipe is used to connect porous media slices, and the air cavity is connected to the air inlet, air outlet holes, and air outlet pipe, respectively. The cover is detachably placed over the pipe opening. The first and second clamps are located on the side of the roller body opposite to the air outlet holes, and are used to clamp the electrode slices. The tension adjustment component is located on the side of the first clamp away from the roller body, and is used to pull the electrode slices and adjust the tension on them. The solution provided in this application enables multiple tests and experiments to be performed on a single device, thereby reducing the space occupied by the device and simplifying the electrode slice testing process.

Description

Technical Field

[0001] This application relates to the field of air flotation experimental device technology, and in particular to porous media air flotation experimental device. Background Technology

[0002] During the production process, electrode sheets typically undergo multiple inspections, such as tension testing. Tension testing utilizes air-bearing rollers, where the electrode sheet is placed on the roller for further testing. These air-bearing rollers usually have multiple air outlets on their outer periphery. Airflow blows the electrode sheet through these outlets. To ensure more uniform and stable airflow, a porous dielectric mesh is added to the outside of the roller. The gas exiting the outlets is then regulated by the porous dielectric mesh, resulting in a more uniform flow.

[0003] In related technologies, in order to select a suitable porous media mesh for the outer skin of the roller, it is also necessary to test the porous media slices to select the porous media slice with the least pressure loss to make the porous media mesh. However, since the testing device for the porous media slices is different from the tension testing device for the electrode, at least two testing devices are required to inspect the electrode. This results in the testing devices occupying too much space in the experimental area, and the more testing devices there are, the more complicated the testing process becomes, which affects the production efficiency of the electrode. Summary of the Invention

[0004] To address or partially address the problems existing in related technologies, this application provides a porous media air flotation experimental device that can perform multiple tests and experiments on a single device, thereby reducing the space occupied by the device and simplifying the electrode testing process.

[0005] This application provides a porous media air flotation experimental device, comprising a base, an air flotation roller, a cover, a first clamp, a second clamp, and a tension adjusting component. The air flotation roller is mounted on the base and includes a roller body, an air inlet, and an air outlet pipe. The roller body has multiple air outlet holes on its surface and an air cavity inside its body. The air inlet is connected to the roller body, and the air outlet pipe is connected to the roller body. The air outlet pipe has an opening for connecting a porous media slice. The air cavity is connected to the air inlet and the air outlet pipe. The air vent is connected to the air outlet pipe; the cover is detachably placed over the pipe opening; the first clamp is mounted on the base, located on the side of the roller body opposite to the air outlet, and is used to clamp the electrode sheet; the second clamp is mounted on the base, located on the side of the roller body opposite to the air outlet, and is used to clamp the electrode sheet; the tension adjusting component is located on the side of the first clamp away from the roller body, and is used to pull the electrode sheet and adjust the tension on the electrode sheet.

[0006] Furthermore, the porous media air flotation experimental device also includes a hanging rod, the central axis of the roller extends horizontally, the hanging rod is located below the first clamp, the hanging rod is used to fix the electrode and hang weights, and the hanging rod moves vertically.

[0007] Furthermore, the base includes a guide rod, which is mounted on the base and extends perpendicularly to the axial direction of the roller. The first clamp and the second clamp are respectively connected to the guide rod. The first clamp slides or is fixed to the guide rod along the extension direction of the guide rod, and the second clamp slides or is fixed to the guide rod along the extension direction of the guide rod.

[0008] Furthermore, the porous medium air flotation experimental device also includes multiple air seals, each corresponding to one of the air outlets, and the air seals are detachably plugged into the air outlets.

[0009] Furthermore, the porous medium air flotation experimental device also includes a barometer, one end of which extends into the air outlet pipe. The barometer is located between the seal and the air chamber and is used to detect the air pressure in the air outlet pipe.

[0010] Furthermore, the porous media air flotation experimental device also includes a porous media mesh, which is detachably draped over the surface of the roller and covers the air outlet.

[0011] Furthermore, it also includes a relaxation adjustment component and a pressure plate. The relaxation adjustment component is installed on the base and is located on the side of the roller body facing away from the air outlet. The pressure plate is installed on the relaxation adjustment component or the base. The pressure plate is used to fix one end of the porous media mesh, and the relaxation adjustment component is used to clamp the other end of the porous media mesh and adjust the tightness of the porous media mesh.

[0012] Furthermore, the relaxation adjustment component includes a slider and a groove, the groove being located on the side of the roller body opposite to the air outlet, the groove extending radially away from the roller body, and the slider sliding along the extension direction of the groove, the slider being used to pull the porous media mesh.

[0013] Furthermore, the relaxation adjustment member also includes a limiting plate, which is located on the side of the chute opposite to the roller body and is located in the extending direction of the chute.

[0014] Furthermore, the relaxation adjustment member also includes a guide roller located between the roller body and the slider.

[0015] The technical solution provided in this application can include the following beneficial results: By opening multiple openable and closable air outlets on the surface of the roller body and opening an air cavity inside the roller body, the air cavity is connected to the air inlet, air outlet, and air outlet pipe respectively. When it is necessary to conduct experiments on porous media slices, the porous media slices can be connected to the air outlet pipe, the air outlet can be closed, and air can be sent into the air cavity by a blower to conduct air pressure tests on the porous media slices, making it convenient for staff to select the porous media slice with the least pressure loss; when it is necessary to conduct air flotation tests on the electrode sheets, the air outlet can be opened and the pipe opening closed, and the electrode sheets can be draped outside the roller body to conduct air flotation tests on the electrode sheets; when it is necessary to conduct tension tests on the electrode sheets, the tension adjustment component can be used to adjust the tension on the electrode sheets and collect the effect of different tension on the electrode sheets in the air-floating state; by using one device, air pressure tests on porous media slices, air flotation tests on electrode sheets, and tension tests on electrode sheets can be realized, thereby reducing the space occupied by the entire device, simplifying the electrode sheet testing process, and improving the production efficiency of electrode sheets.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0018] Figure 1 This is a schematic diagram of the porous media air flotation experimental device shown in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the roller body shown in the embodiments of this application; Figure 3 This is another structural schematic diagram of the porous media air flotation experimental device shown in the embodiments of this application; Figure 4 This is a bottom schematic diagram of the porous media air flotation experimental device shown in the embodiments of this application.

[0019] Reference numerals: Base 1; Guide rod 11; Base 12; Support 13; Air flotation roller 2; Roller body 21; Air outlet 211; Air inlet 22; Air outlet pipe 23; Pipe opening 231; Insertion hole 24; Porous media mesh 3; Relaxation adjustment component 4; Slider 41; Slide groove 42; Limiting plate 43; Guide roller 44; First clamp 5; First upper clamping plate 51; First lower clamping plate 52; Second clamp 6; Second upper clamping plate 61; Second lower clamping plate 62; Hanging rod 7; Cover 8; Electrode 9; Pressure plate 10; Porous media slice 100. Detailed Implementation

[0020] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0021] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In related technologies, to select a suitable porous media mesh for the outer skin of the roller, it is necessary to inspect the porous media slices to choose the one with the least pressure loss for fabricating the porous media mesh. However, since the inspection device for the porous media slices differs from the tension inspection device for the electrode, at least two inspection devices are required to inspect the electrode. This results in the inspection devices occupying excessive space in the experimental area, and the more inspection devices there are, the more cumbersome the inspection process becomes, affecting the production efficiency of the electrode. To address the above problems, this application provides a porous media air flotation experimental device that can perform multiple inspections and experiments on a single device, thereby reducing the space occupied by the device and simplifying the electrode inspection process.

[0025] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] See Figure 1 and Figure 2 The porous media air flotation experimental device includes a base 1, an air flotation roller 2, a cover 8, a first clamp 5, a second clamp 6, and a tension adjustment component. The air flotation roller 2 is mounted on the base 1 and includes a roller body 21, an air inlet 22, and an air outlet 23. The roller body 21 is cylindrical, and its surface has multiple openable and closable air outlets 211 located on the arc surface of the roller body 21. An air chamber is formed inside the roller body 21, connected to the air outlets 211. When the air outlets 211 are open, gas can flow between the air chamber and the air outlets 211, and the gas within the air chamber can flow into the atmosphere through the air outlets 211. The air inlet 22 is connected to the roller body 21 and communicates with the air chamber. The air inlet 22 can be connected to an external blower, which can deliver gas into the air chamber through the air inlet 22.

[0027] See Figure 1-3The vent pipe 23 is connected to the roller body 21 and communicates with the air chamber. The vent pipe 23 has a cavity inside, and a blower delivers gas into the air chamber through the air inlet 22. Gas can flow from the air chamber into the cavity. The vent pipe 23 has an opening 231, allowing gas to flow from the cavity to the opening 231. The vent pipe 23 is used to connect to the porous media slice 100, which is installed in the cavity. When the porous media slice 100 is installed in the cavity, the vent outlet 211 can be closed, and gas is delivered into the air chamber by the blower, allowing the gas to pass through the porous media slice 100. The testing personnel can measure the gas pressure or flow rate on the side of the porous media slice 100 facing away from the air chamber to obtain experimental data about the porous media slice 100. In actual experiments, the blower can be adjusted to different frequencies, and the gas flow rate and pressure in the vent pipe 23 can be measured. Multiple sets of data can be recorded and compared with different porous media. This application can detect the fluid pressure difference between the inlet and outlet of the porous media slice 100 and select the porous media with the least pressure loss as the porous media mesh 3 draped over the roller body 21.

[0028] See Figure 1 and Figure 2 The cover 8 is detachably placed on the pipe opening 231. When it is necessary to conduct an air flotation experiment on the electrode 9, the cover 8 can be placed on the pipe opening 231 so that the gas in the pipe cavity cannot pass through the pipe opening 231 and flow into the atmosphere. At the same time, each air outlet 211 is opened, and the electrode 9 to be tested is placed on the outer surface of the roller body 21. When the blower blows air into the air cavity, the gas in the air cavity can be discharged out through the air outlet 211. The gas is discharged out through the air outlet 211, thereby realizing the air flotation experiment on the electrode 9.

[0029] See Figure 1-3 The first clamp 5 is installed on the base 1 and is located on the side of the roller body 21 facing away from the air outlet 211. The first clamp 5 is used to clamp the electrode 9. The second clamp 6 is installed on the base 1 and is located on the side of the roller body 21 facing away from the air outlet 211. The second clamp 6 is used to clamp the electrode 9. The air chamber includes a static pressure chamber and an air outlet chamber. The static pressure chamber is connected to the air inlet 22 and is used to stabilize the airflow. The air outlet chamber is connected to the static pressure chamber and is connected to the air outlet 211. After the airflow is blown out from the air outlet 211, it forms an air film between the electrode 9 and the roller body 21, realizing the non-contact suspension of the electrode 9. The differentiated fixing of the first clamp 5 and the second clamp 6 supports the quick disassembly of the electrode 9.

[0030] See Figure 1-3When the experimenter needs to conduct an air flotation experiment on the electrode 9, the air outlet 211 can be opened, and the electrode 9 can be clamped by the first clamp 5 and the second clamp 6 respectively, so that a section of the electrode 9 between the first clamp 5 and the second clamp 6 is draped over the outside of the roller body 21. The air inlet 22 is connected to a blower, and the blower is used to deliver gas into the air chamber. The gas flows from the air chamber to the outside of the air outlet 211. The electrode 9 floats outside the roller body 21 under the blowing of the gas. The experimenter measures the floating condition of the electrode 9 under different blower frequencies, such as wrinkling and floating height.

[0031] See Figure 1-3 The tension adjustment component is located on the side of the first clamp 5 away from the roller 21. The tension adjustment component is used to pull the electrode 9 and adjust the tension on the electrode 9. When the experimenter needs to conduct an air flotation experiment on the electrode 9, the experimenter can adjust the tension on one end of the electrode 9 so that the experimenter can collect the effect of the electrode 9 being subjected to different tensions in the air flotation state, detect the relationship between wind frequency, suspension height and tension, and achieve the experimental purpose of measuring the floating of the electrode 9 under different wind frequencies.

[0032] This application creates multiple openable and closable air outlets 211 on the surface of the roller body 21 and an air chamber inside the roller body 21, connecting the air chamber to the air inlet 22, the air outlets 211, and the air outlet pipe 23. When it is necessary to conduct experiments on the porous media slice 100, the porous media slice 100 can be connected to the air outlet pipe 23, the air outlets 211 can be closed, and air can be sent into the air chamber by a blower to conduct air pressure tests on the porous media slice 100, making it convenient for staff to select the porous media slice 100 with the least pressure loss; when it is necessary to conduct air flotation experiments on the electrode 9... By opening the air outlet 211 and closing the pipe 231, the electrode 9 can be draped over the roller body 21 to perform an air flotation test on the electrode 9. When it is necessary to test the tension of the electrode 9, the tension on the electrode 9 can be adjusted by the tension adjustment component to collect the effect of the electrode 9 under different tension in the air-floating state. The air pressure test of the porous medium slice 100, the air flotation test of the electrode 9 and the tension test of the electrode 9 can be realized by one device, thereby reducing the space occupied by the whole device, simplifying the testing process of the electrode 9 and improving the production efficiency of the electrode 9.

[0033] See Figure 1-3In some embodiments, the tension adjustment component includes a hanging rod 7 and a weight. The central axis of the roller body 21 extends horizontally. The first clamp 5 is located above the second clamp 6. The first clamp 5 can clamp the upper half of the electrode 9, and the second clamp 6 can clamp the lower half of the electrode 9. The first clamp 5 clamps the upper half of the electrode 9 and guides the electrode 9, while the second clamp 6 clamps the lower half of the electrode 9 and guides the electrode 9. The hanging rod 7 is located below the first clamp 5 and is used to fix the electrode 9 and hang the weight. One end of the electrode 9 can be wrapped around the hanging rod 7, and the hanging rod 7 can move vertically. When a weight is hung on the hanging rod 7, the hanging rod 7 can pull the upper half of the electrode 9, thereby generating tension on the electrode 9. By adjusting the weight of the weight, the experimenter can collect the effect of different magnitudes of tension on the electrode 9 in the air-floating state, detect the relationship between wind frequency, suspension height, and tension, and achieve the experimental purpose of measuring the floating condition of the electrode 9 under different wind frequencies.

[0034] See Figure 2 and Figure 3The base 1 includes a guide rod 11, which is mounted on the base 1 and located on the side of the roller body 21 facing away from the air outlet 211. The extension direction of the guide rod 11 is perpendicular to the axial direction of the roller body 21. Taking the axial direction of the roller body 21 as the horizontal direction, the guide rod 11 extends in a vertical direction. The first clamp 5 and the second clamp 6 are respectively connected to the guide rod 11. The first clamp 5 slides or is fixed to the guide rod 11 along the extension direction of the guide rod 11, and the second clamp 6 slides or is fixed to the guide rod 11 along the extension direction of the guide rod 11. By setting the guide rod 11, the first clamp 5 and the second clamp 6 are slidably connected to the guide rod 11, which makes it convenient for the experimenter to adjust the height of the first clamp 5 and the second clamp 6, thereby adjusting the tightness of the electrode 9 on the roller body 21. Specifically, the first clamping member 5 includes a first upper clamping plate 51 and a first lower clamping plate 52. The first upper clamping plate 51 is located above the first lower clamping plate 52. The electrode 9 can pass through the gap between the first upper clamping plate 51 and the first lower clamping plate 52. The upper surface of the first lower clamping plate 52 has a first chamfer on both the side facing the roller body 21 and the side away from the roller body 21. The first chamfer makes the electrode 9 move more smoothly when it is transmitted on the upper surface of the first lower clamping plate 52. The first lower clamping plate 52 is provided with a first fixing ring and a first fixing bolt. The guide rod 11 passes through the first fixing ring, and the first fixing bolt passes through the first fixing ring and abuts against the guide rod 11. When it is necessary to adjust the height of the first clamping member 5, the experimenter can loosen the first fixing bolt, then slide the first fixing ring along the guide rod 11 until the first clamping member 5 reaches the required height, and then tighten the first fixing bolt to increase the friction between the first fixing bolt and the guide rod 11. This fixes the first fixing ring relative to the guide rod 11. The second clamp 6 includes a second upper clamp 61 and a second lower clamp 62. The second upper clamp 61 is located above the second lower clamp 62. The electrode 9 can pass through the gap between the second upper clamp 61 and the second lower clamp 62. The upper surface of the second lower clamp 62 is provided with a second chamfer on both the side facing the roller 21 and the side away from the roller 21. The second chamfer can make the electrode 9 move more smoothly when it is driven on the upper surface of the second lower clamp 62. The second lower clamp 62 is provided with a second fixing ring and a second fixing bolt. The guide rod 11 passes through the second fixing ring, and the second fixing bolt passes through the second fixing ring and abuts against the guide rod 11. When it is necessary to adjust the height of the second clamp 6, the experimenter can loosen the second fixing bolt and then slide the second fixing ring along the guide rod 11 until the second clamp 6 reaches the required height. Then tighten the second fixing bolt to increase the friction between the second fixing bolt and the guide rod 11, thereby fixing the second fixing ring relative to the guide rod 11. Preferably, the gap between the first upper clamping plate 51 and the first lower clamping plate 52 is flush with the top of the roller body 21, and the gap between the second upper clamping plate 61 and the second lower clamping plate 62 is flush with the bottom of the roller body 21, so that the top of the electrode 9 can extend horizontally and the bottom of the electrode 9 can extend horizontally, which makes it convenient for the experimenter to adjust the tightness and position of the electrode 9.

[0035] See Figure 1-3 In some embodiments, the porous media air flotation experimental device also includes multiple air seals, each corresponding to an air outlet 211. The air seals are detachably plugged into the air outlet 211. When the porous media slice 100 needs to be tested, each air outlet 211 is plugged with an air seal, so that the gas in the air chamber can only flow to the air outlet pipe.

[0036] In some embodiments, the air flotation roller also includes an air valve installed at the air outlet 211. The air valve may be a solenoid valve, and the experimenter controls the opening and closing of the air outlet 211 by switching the air valve on and off.

[0037] See Figure 1-3 The air flotation roller 2 also includes an insertion hole 24, into which a barometer or flow meter can be inserted. The insertion hole 24 is located on the outlet pipe 23 and is connected to the pipe cavity. The porous media air flotation experimental device also includes a barometer, which is inserted into the insertion hole 24. One end of the barometer extends into the outlet pipe 23, and the barometer is located between the seal and the air cavity. The barometer is used to detect the air pressure in the outlet pipe 23. After the porous media slice 100 is inserted into the outlet pipe 23, the barometer is located between the porous media slice 100 and the pipe opening 231. The barometer can detect the air pressure after the gas passes through the porous media slice 100. When performing an air flotation experiment on electrode 9, cover 8 is placed over pipe opening 231. Porous media slice 100 does not need to be inserted into air outlet pipe 23. At this time, the pipe cavity and air cavity are integrated. The barometer can detect the air pressure in the air cavity, which allows the experimenter to measure the flow pressure difference between the inlet and outlet of porous media mesh 3 in real time. The experimenter can adjust the airflow of the blower in a timely manner according to the test results to ensure stable air pressure and guarantee the stability and uniformity of the air film.

[0038] See Figure 1-3 The porous media air flotation experimental device also includes a porous media mesh 3, which is detachably draped over the surface of the roller body 21. Specifically, the porous media mesh 3 can be a skin on the outer surface of the roller body 21. The porous media mesh 3 covers the air outlet holes 211. The porous media mesh 3 is a woven mesh with a regular microporous structure. The air outlet holes 211 are covered by the fine pores of the porous media mesh 3, which can stably and uniformly act the airflow from the initial air holes 211 on the air flotation roller 2 onto the surface of the electrode 9, thereby forming an air film between the electrode 9 and the roller body 21. This reduces deformation, wrinkling, and displacement caused by uneven airflow, reduces the risk of surface damage to the electrode 9, improves processing accuracy, avoids local high or low pressure areas, and ensures that the electrode 9 is subjected to consistent force during transmission or flipping.

[0039] See Figure 1-4The porous media air flotation experimental device also includes a relaxation adjustment component 4 and a pressure plate 10. The pressure plate 10 is installed on the base 1 or the relaxation adjustment component 4. Preferably, the pressure plate 10 is installed on the relaxation adjustment component 4. The pressure plate 10 is used to fix one end of the porous media mesh 3. Specifically, a clamping bolt is screwed onto the pressure plate 10. When it is necessary to fix the porous media mesh 3, one end of the porous media mesh 3 can be inserted into the gap between the relaxation adjustment component 4 and the pressure plate 10. By tightening the clamping bolt, the gap between the relaxation adjustment component 4 and the pressure plate 10 is narrowed, so that the relaxation adjustment component 4 and the pressure plate 10 clamp and fix one end of the porous media mesh 3. The relaxation adjustment component 4 is installed on the base 1. The relaxation adjustment component 4 is used to clamp the other end of the porous media mesh 3. The relaxation adjustment component 4 can adjust the tightness of the porous media mesh 3 on the surface of the roller 21 by cooperating with the pressure plate 10, thereby simplifying the process of cleaning, replacement or adaptation to different process requirements and reducing downtime. Furthermore, the relaxation adjustment component 4, in conjunction with the pressure plate 10, can verify whether the porous media mesh 3 skin of different thicknesses and densities can completely adhere to the surface of the roller body 21. By setting the pressure plate 10 to fix one end of the porous media mesh 3 and the relaxation adjustment component 4 to fix the other end of the porous media mesh 3, the tension of the porous media mesh 3 can be adjusted by the relaxation adjustment component 4. After a long period of air flotation experiment, the tension of the porous media mesh 3 can be adjusted to compensate for the effects of material deformation or wear, thereby ensuring that the output airflow remains uniform over a long period of time, avoiding local air loss due to the loosening of the porous media mesh 3, and ensuring the normal conduct of the electrode 9 air flotation experiment.

[0040] See Figure 1 and Figure 2 The base 1 includes a base 12 and two supports 13. The bottom end of the guide rod 11 is fixed to the base 12, and the supports 13 are fixed to the upper surface of the base 12. The two supports 13 are arranged in parallel. The roller body 21 is fixed between the two supports 13. The air outlet pipe 23 is installed on one of the supports 13. The air outlet pipe 23 is located on the side of the support 13 facing away from the roller body 21. The air inlet 22 is located at the end of the roller body 21 facing away from the air outlet pipe 23.

[0041] See Figure 1 and Figure 2In some embodiments, one end of the roller body 21 is provided with a first flange, and one end of the air outlet pipe 23 is provided with a second flange. The first flange and the second flange are fixedly connected by screws. The space between the first flange and the second flange is used to insert the porous media slice 100. When it is necessary to place the porous media slice 100 in the air outlet pipe 23, the screws on the second flange can be loosened, the porous media slice 100 can be attached to the end of the air outlet pipe 23 away from the pipe opening 231, the second flange can be aligned with the first flange and attached together, and the first flange and the second flange can be fixed together with bolts, so that the porous media slice 100 is sandwiched between the first flange and the second flange. The porous media slice 100 is fixed in the air outlet pipe 23 by the first flange and the second flange, ensuring that the porous media slice 100 has sufficient airtightness in the experiment and making it easy for the experimenter to disassemble the porous media slice 100.

[0042] See Figure 1-3 The relaxation adjustment component 4 includes a slider 41 and a groove 42. The groove 42 is located on the side of the roller body 21 opposite to the air outlet 211 and extends radially away from the roller body 21. Preferably, the groove 42 extends horizontally. The slider 41 slides along the extension direction of the groove 42. The slider 41 is used to pull the porous media mesh 3. When the slider 41 pulls the porous media mesh 3, the slider 41 moves on the groove 42 in the direction opposite to the roller body 21. The slider 41 can pull one end of the porous media mesh 3 in the direction opposite to the roller body 21, thereby adjusting the tension of the porous media mesh 3 on the roller body 21. The slider 41 can fix the porous medium mesh 3. In some embodiments, the slider 41 can be provided with a hook, which hooks the porous medium mesh 3 to fix one end of the porous medium mesh 3. In some embodiments, the slider 41 is provided with a clamping member, which clamps the porous medium mesh 3 to fix one end of the porous medium mesh 3. The clamping member can be two clamping pieces and an adjusting bolt. The adjusting bolt passes through the two clamping pieces, and the clamping pieces adjust the gap between the clamping pieces through the bolt to clamp the porous medium mesh 3. In some embodiments, a hook bolt can be screwed onto the slider 41, which extends into the mesh of the porous medium mesh 3 and hooks the porous medium mesh 3.

[0043] In some embodiments, there are multiple sliders 41 and multiple grooves 42, with one slider 41 corresponding to one groove 42. Multiple grooves 42 are arranged side-by-side. Each slider 41 includes a first slider and a second slider. The first slider is used to pull the porous dielectric mesh 3, and the second slider is used to pull the electrode 9. The first slider is located on the side of the second slider closer to the roller body 21 to avoid mutual interference between the porous dielectric mesh 3 and the electrode 9. The first slider and the second slider are staggered along the width direction of the groove 42 to ensure uniform force on the porous dielectric mesh 3 when pulled by the first slider and uniform force on the electrode 9 when pulled by the second slider. Specifically, the relaxation adjustment member 4 also includes a reversing roller, which is mounted on the guide rod 11. A tension sensor is provided between the guide roller and the second slider. After the electrode passes through the first clamp 5... Extending towards the reversing roller, and then guided by the reversing roller, it extends to the tension sensor. One end of the electrode 9 is connected to the tension sensor, which is connected to the second slider. The second slider pulls the electrode 9 through the tension sensor. When it is necessary to adjust the tension of the electrode 9, the movement distance of the second slider in the slide groove 42 can be finely adjusted to change the tension of the second slider on the electrode 9. The tension value of the electrode 9 is then obtained through the tension sensor. Adjusting the tension on the electrode 9 by sliding the second slider allows for a gentler adjustment of the tension, facilitating the collection of more sets of data from electrode 9 tension experiments, expanding the experimental range, and making the experimental data more accurate. In addition, by combining the second slider and the first slider, the overall size of the device can be reduced, making the experimental device more compact.

[0044] See Figure 1 and Figure 2 The slack adjustment member 4 also includes a limiting plate 43, which is located on the side of the slide groove 42 facing away from the roller body 21 and is located in the extending direction of the slide groove 42. The limiting plate 43 can prevent the slider 41 from sliding out of the slide groove 42. In some embodiments, the limiting plate 43 is provided with a clearance groove and an adjusting bolt. The slider 41 is provided with a screw hole on the side facing the limiting plate 43. The head of the adjusting bolt is located on the side of the limiting plate 43 away from the slider 41. The adjusting bolt passes through the clearance groove from the side of the limiting plate 43 away from the slider 41 and is screwed into the screw hole. When it is necessary for the slider 41 to slide on the slide groove 42, the adjusting bolt on the slider 41 can be rotated to make the slider 41 slide relative to the slide groove 42. In some embodiments, the slider 41 is provided with a third fixing bolt and a fixing through hole. The third fixing bolt is screwed into the fixing through hole. When it is necessary to fix the relative position of the slider 41 and the slide groove 42, the third fixing bolt can be rotated to make the third fixing bolt pass through the fixing through hole and abut against the surface of the slide groove 42, thereby making the slider 41 stuck on the slide groove 42.

[0045] See Figure 2 and Figure 3The relaxation adjustment component 4 also includes two guide rollers 44. The guide rollers 44 are located between the roller body 21 and the slider 41. The guide rollers 44 are located on the side of the roller body 21 facing away from the air outlet 211 and above the slide groove 42. When the porous dielectric mesh 3 is covered on the roller body 21, the end of the porous dielectric mesh 3 away from the first clamp 5 can be guided to the slider 41 by the guide rollers 44, ensuring that the slider 41 can better pull the porous dielectric mesh 3 and prevent the porous dielectric mesh 3 from scratching the electrode 9.

[0046] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0047] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A porous media air flotation experimental device, characterized in that, include: Base; An air flotation roller is mounted on the base. The air flotation roller includes a roller body, an air inlet, and an air outlet pipe. The surface of the roller body has multiple openable and closable air outlet holes. An air cavity is formed inside the roller body. The air inlet is connected to the roller body. The air outlet pipe is connected to the roller body and has a pipe opening. The air outlet pipe is used to connect to a porous media slice. The air cavity is connected to the air inlet, the air outlet holes, and the air outlet pipe respectively. A cover, which is detachably attached to the pipe opening; A first clamp is mounted on the base and is located on the side of the roller body facing away from the air outlet. The first clamp is used to hold the electrode sheet. The second clamp is mounted on the base and is located on the side of the roller body facing away from the air outlet. The second clamp is used to hold the electrode sheet. A tension adjusting component is located on the side of the first clamp away from the roller body. The tension adjusting component is used to pull the electrode sheet and adjust the tension on the electrode sheet.

2. The porous media air flotation experimental apparatus according to claim 1, characterized in that: The tension adjustment component includes a hanging rod, the central axis of the roller body extends horizontally, the hanging rod is located below the first clamp, the hanging rod is used to fix the electrode and hang weights, and the hanging rod moves vertically.

3. The porous media air flotation experimental apparatus according to claim 2, characterized in that: The base includes a guide rod, which is mounted on the base. The extension direction of the guide rod is perpendicular to the axial direction of the roller. A first clamp and a second clamp are respectively connected to the guide rod. The first clamp slides or is fixed to the guide rod along the extension direction of the guide rod, and the second clamp slides or is fixed to the guide rod along the extension direction of the guide rod.

4. The porous media air flotation experimental apparatus according to claim 1, characterized in that: It also includes multiple air seals, each corresponding to one of the air outlets, and the air seals are detachably plugged into the air outlets.

5. The porous media air flotation experimental apparatus according to claim 4, characterized in that: It also includes a barometer, one end of which extends into the air outlet pipe. The barometer is located between the seal and the air chamber and is used to detect the air pressure in the air outlet pipe.

6. The porous media air flotation experimental apparatus according to claim 1, characterized in that: It also includes a porous medium mesh, which is detachably draped over the surface of the roller body and covers the air outlet.

7. The porous media air flotation experimental apparatus according to claim 6, characterized in that: It also includes a relaxation adjustment component and a pressure plate. The relaxation adjustment component is installed on the base and is located on the side of the roller body facing away from the air outlet. The pressure plate is installed on the relaxation adjustment component or the base. The pressure plate is used to fix one end of the porous media mesh, and the relaxation adjustment component is used to clamp the other end of the porous media mesh and adjust the tightness of the porous media mesh.

8. The porous media air flotation experimental apparatus according to claim 7, characterized in that: The relaxation adjustment component includes a slider and a groove. The groove is located on the side of the roller body opposite to the air outlet. The groove extends radially away from the roller body. The slider slides along the extension direction of the groove. The slider is used to pull the porous media mesh.

9. The porous media air flotation experimental apparatus according to claim 8, characterized in that: The relaxation adjustment component further includes a limiting plate, which is located on the side of the chute opposite to the roller body and is located in the extending direction of the chute.

10. The porous media air flotation experimental apparatus according to claim 8, characterized in that: The relaxation adjustment component also includes a guide roller located between the roller body and the slider.

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