Special drying device for ion exchange membrane based on fluid mechanics optimization

Abstract

The utility model relates to a special drying device for an ion exchange membrane based on fluid mechanics optimization. The problems that in the prior art, the ion exchange membrane drying process is uneven in air volume, and local overheating is likely to be caused are solved. The drying device comprises a drying outer shell, an air inlet cavity and an air outlet cavity are formed in the drying outer shell, an air inlet and guide structure arranged in a stacked mode is arranged in the air inlet cavity, an air outlet and guide structure is arranged in the air outlet cavity, an air direction guiding and adjusting assembly is arranged at one end of the air inlet and guide structure, and a balance plate structure is arranged at one end of the air direction guiding and adjusting assembly and one end of the air outlet and guide structure. Compared with the prior art, the ion exchange membrane drying device has the advantages that a modularized multi-air-duct array structure is adopted, and the airflow speed is accurately controlled within a certain adjustable range through the composite flow guide design that the multi-stage air inlet guide plates, the air guide seats and the air outlet shutter guide plates are arranged, so that local overheating of an ion exchange membrane during drying is avoided, and the drying efficiency is improved. Fluctuation of interface bonding force of the membrane and a base material before coating is reduced, and stability of conduction performance of the ion exchange membrane is improved.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a special drying device for ion exchange membranes based on fluid dynamics optimization. Background Technology

[0002] Ion exchange membranes are polymeric materials with ion-selective permeability. They achieve the directional transport and separation of specific ions by fixing charged groups on their surface. They are mainly used in water treatment (such as seawater desalination and wastewater recycling), chlor-alkali industry (high-efficiency alkali production), new energy (fuel cells, flow batteries), and biomedicine (hemodialysis). Due to its high-efficiency separation and low-energy consumption characteristics, this technology has become one of the core materials for resource recycling and clean energy development.

[0003] In the preparation of ion exchange membranes, the substrate membrane needs to be dried to remove surface moisture before coating to ensure the uniformity of the subsequent coating. However, traditional drying equipment generally adopts top-blowing direct-flow hot air conduction technology, whose airflow structure is a one-way straight-through air duct, resulting in poor uniformity of hot air distribution and significant thermal gradients on the membrane. Specifically, in the early stage of drying, the edges of the membrane shrink first due to airflow impact, while the central area forms a humidity gradient due to the lag in hot air transfer, causing uneven stress distribution on the membrane surface and ultimately producing wavy morphology defects at the edges. At the same time, the direct-blowing high-speed airflow is prone to local overheating, exacerbating the fluctuation of the interfacial adhesion between the membrane and the substrate before coating, resulting in inconsistent penetration depth of the coating solution and affecting the stability of ion conduction performance.

[0004] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a drying device for ion exchange membranes [CN202220257930.5], which includes an oven, and a support assembly, a heating assembly, a drying assembly, and a control assembly disposed inside the oven; the support assembly includes multiple brackets and multiple clamps, the brackets are mounted on the inner bottom of the oven, and the clamps are disposed at the end of the brackets away from the oven, and the clamps are serrated opening and closing clamps.

[0005] The above solution has solved the problem of uneven hot air distribution in the drying process of ion exchange membranes in the prior art to a certain extent. However, the solution still has many shortcomings, such as: it is easy to cause local overheating, which aggravates the fluctuation of the bonding force between the membrane and the substrate before coating, resulting in inconsistent penetration depth of the coating liquid and affecting the stability of ion conduction performance. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a dedicated drying device for ion exchange membranes based on fluid dynamics optimization.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a special drying device for ion exchange membranes based on fluid dynamics optimization, comprising a drying shell, wherein an air inlet chamber and an air outlet chamber are respectively provided inside the drying shell, an air inlet guide structure is provided in the air inlet chamber, an air outlet guide structure is provided in the air outlet chamber, and an air direction guiding adjustment component is provided at one end of the air inlet guide structure near the air outlet guide structure, and a balancing air plate structure is provided at one end of the air direction guiding adjustment component and the air outlet guide structure.

[0008] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the air inlet guide structure includes several stacked air inlet guide plates, and an air inlet gap is formed between two adjacent air inlet guide plates. One end of the air inlet guide plate is provided with an air inlet adjustment baffle that can be adjusted up and down.

[0009] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, a stainless steel air guide swing plate is provided on the lower side of the air inlet guide plate at the bottom.

[0010] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the airflow direction adjustment component includes an airflow guide plate connected to the end of the airflow guide plate away from the airflow adjustment baffle. The end of the airflow guide plate is provided with an arc-shaped airflow guide seat that can be adjusted for bending curvature.

[0011] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the lower end of the air inlet guide structure is provided with an inclined air outlet louver guide plate, and one end of the air outlet louver guide plate is provided with an adjustable telescopic plate extending toward the guide seat.

[0012] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the air outlet guide structure includes several strip-shaped air outlet louvers arranged on the air outlet louver guide plate, and the bottom of the drying shell is provided with an air outlet plate located on the upper side of the membrane roll. The air outlet plate is provided with several air outlet holes arranged in a matrix.

[0013] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, an air outlet channel is formed between the air outlet louver guide plate and the air outlet plate.

[0014] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the balance air plate structure includes a swing-type perforated plate, the middle of which is rotated and positioned by a positioning shaft, and a wire mesh pressure plate is provided at the upper end of the swing-type perforated plate.

[0015] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the left end of the swing-type perforated plate is provided with an adjustable bending section, and the left and right sides of the front and rear sections of the swing-type perforated plate are provided with air passage slots.

[0016] In the aforementioned ion exchange membrane drying device based on fluid dynamics optimization, the air inlet chamber and the air outlet chamber are interconnected, and an air inlet is provided at one end of the air inlet chamber.

[0017] Compared with the prior art, the advantages of this utility model are: optimized heat field distribution and airflow control performance, adopting a modular multi-channel array structure, and through the composite airflow guiding design of arranging multi-stage air inlet guide plates, air guide seats and air outlet louver guide plates, the airflow speed is precisely controlled within a certain adjustable range, thereby avoiding local overheating of the ion exchange membrane during drying, reducing fluctuations in the interface bonding force between the membrane and the substrate before coating, ensuring consistent penetration depth of the coating liquid, and improving the stability of the conductivity performance of the ion exchange membrane. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0020] In the diagram: 1. Drying outer shell; 11. Air inlet chamber; 111. Air outlet chamber; 12. Air inlet guide structure; 2. Air inlet guide plate; 21. Air inlet gap; 22. Air inlet adjustment baffle; 23. Stainless steel air guide swing plate; 24. Air outlet guide structure; 3. Strip-shaped air outlet louver; 31. Air outlet plate; 32. Air outlet hole; 33. Air outlet channel; 34. Air direction guide adjustment component; 4. Air direction guide plate; 41. Air guide seat; 42. Air outlet louver guide plate; 43. Adjustable telescopic plate; 44. Balance air plate structure; 5. Swinging perforated plate; 51. Positioning shaft; 52. Steel wire mesh pressure plate; 53. Adjustable bending part; 54. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-2 As shown, a special drying device for ion exchange membranes based on fluid dynamics optimization includes a drying shell 1. The drying shell 1 is provided with an air inlet chamber 11 and an air outlet chamber 12. The air inlet chamber 11 is provided with an air inlet guide structure 2 arranged in layers. The air outlet chamber 12 is provided with an air outlet guide structure 3. The end of the air inlet guide structure 2 near the air outlet guide structure 3 is provided with a wind direction adjustment component 4. The wind direction adjustment component 4 and the end of the air outlet guide structure 3 are provided with a balancing air plate structure 5.

[0023] The air inlet guide structure 2 includes several stacked air inlet guide plates 21, and an air inlet gap 22 is formed between two adjacent air inlet guide plates 21. One end of the air inlet guide plate 21 is provided with an air inlet adjustment baffle 23 that can be adjusted up and down.

[0024] The air inlet regulating baffle 23 is flipped up and down to adjust the air intake volume of each air inlet gap 22. The length of the air inlet regulating baffle 23 is 2-3CM, and the rear end of the air inlet guide plate 21 is slightly bent backward to lead out part of the air.

[0025] The air inlet regulating baffles 23 are arranged in parallel and the width of the air inlet gap 22 gradually increases from top to bottom.

[0026] As can be seen, a stainless steel air guide swing plate 24 is provided on the lower side of the air inlet guide plate 21 located at the bottom.

[0027] The stainless steel air guide swing plate 24 gradually increases in height from front to back and the angle is adjustable.

[0028] Furthermore, the wind direction adjustment assembly 4 includes a wind direction guide plate 41 connected to the end of the air inlet guide plate 21 away from the air inlet adjustment baffle 23, and the end of the wind direction guide plate 41 is provided with an air guide seat 42 that is arc-shaped and can be adjusted for bending curvature.

[0029] The air guide seat 42 is used to change the direction of airflow.

[0030] Specifically, the lower end of the air inlet guide structure 2 is provided with an inclined air outlet louver guide plate 43, and one end of the air outlet louver guide plate 43 is provided with an adjustable telescopic plate 44 extending toward the guide seat 42.

[0031] The adjustable telescopic plate 44 is used to adjust the air intake volume, that is, to control the air intake volume by adjusting the gap between the adjustable telescopic plate 44 and the air guide seat 42.

[0032] In detail, the air outlet guide structure 3 includes several strip-shaped air outlet louvers 31 arranged on the air outlet louver guide plate 43, and the bottom of the drying outer shell 1 is provided with an air outlet plate 32 located on the upper side of the film roll, and the air outlet plate 32 is provided with several air outlet holes 33 arranged in a matrix.

[0033] An air outlet channel 34 is formed between the air outlet louver guide plate 43 and the air outlet plate 32.

[0034] More specifically, the balancing wind plate structure 5 includes a swing-type perforated plate 51, the middle of which is rotated and positioned by a positioning shaft 52, and a wire mesh pressure plate 53 is provided at the upper end of the swing-type perforated plate 51.

[0035] Preferably, the left end of the swing-type perforated plate 51 is provided with an adjustable bending part 54, and the left and right sides of the front and rear sections of the swing-type perforated plate 51 are provided with air passage slots.

[0036] To facilitate on-site wind speed adjustment, the adjustable bending part 54 is used to bend upwards when adjusting the wind speed, preventing the air guide plate from causing wind direction blockage and air volume loss.

[0037] The purpose of the balancing wind vane structure 5 is to make the wind speed more uniform and reduce the occurrence of localized high wind speeds.

[0038] In addition, the air inlet chamber 11 and the air outlet chamber 12 are interconnected, and one end of the air inlet chamber 11 is provided with an air inlet 111.

[0039] In summary, the principle of this embodiment is as follows: when air is introduced, the angle of the air inlet regulating baffle 23 is adjusted to control the air volume, and the airflow direction is changed by the air guide seat 42. Secondly, the air volume is controlled by the telescopic plate 44. The air outlet uniformity is automatically adjusted by the balancing air plate structure 5. Finally, the air outlet guide structure 3 evenly distributes the air volume. The air is blown towards the ion exchange membrane roll located at the bottom of the air outlet plate 32 through the strip-shaped air outlet louvers 31 and the air outlet holes 33. This application, through the composite airflow guiding design of the multi-stage air inlet guide plate 21, air guide seat 42 and air outlet louver guide plate 43, accurately controls the airflow speed within a certain adjustable range, making the air volume more uniform and improving the overall drying effect of the ion exchange membrane.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0041] Although this document frequently uses terms such as drying outer shell 1, air inlet 11, air inlet 111, air outlet 12, air inlet guide structure 2, air inlet guide plate 21, air inlet gap 22, air inlet adjusting baffle 23, stainless steel air guide swing plate 24, air outlet guide structure 3, strip-shaped air outlet louver 31, air outlet plate 32, air outlet hole 33, air outlet channel 34, air direction guiding adjustment component 4, air direction guide plate 41, air guide seat 42, air outlet louver guide plate 43, adjustable telescopic plate 44, balancing air plate structure 5, swing-type perforated plate 51, positioning shaft 52, wire mesh pressure plate 53, and adjustable bending part 54, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A dedicated drying device for ion exchange membranes based on fluid dynamics optimization, comprising a drying shell (1), wherein the drying shell (1) is provided with an air inlet chamber (11) and an air outlet chamber (12), characterized in that, The air inlet cavity (11) is provided with an air inlet guide structure (2) arranged in layers, and the air outlet cavity (12) is provided with an air outlet guide structure (3). The air inlet guide structure (2) is provided with a wind direction adjustment component (4) at one end near the air outlet guide structure (3). The wind direction adjustment component (4) and the air outlet guide structure (3) are provided with a balancing wind plate structure (5).

2. The ion exchange membrane drying device based on fluid dynamics optimization according to claim 1, characterized in that, The air inlet guide structure (2) includes several stacked air inlet guide plates (21), and an air inlet gap (22) is formed between two adjacent air inlet guide plates (21). One end of the air inlet guide plate (21) is provided with an air inlet adjustment baffle (23) that can be adjusted up and down.

3. The ion exchange membrane drying device based on fluid dynamics optimization according to claim 2, characterized in that, A stainless steel air guide swing plate (24) is provided on the lower side of the air inlet guide plate (21) located at the bottom.

4. The ion exchange membrane drying device based on fluid dynamics optimization according to claim 3, characterized in that, The wind direction adjustment component (4) includes a wind direction guide plate (41) connected to the end of the air inlet guide plate (21) away from the air inlet adjustment baffle (23). The end of the wind direction guide plate (41) is provided with an air guide seat (42) that is arc-shaped and can be adjusted by bending.

5. A dedicated drying device for ion exchange membranes based on fluid dynamics optimization according to claim 4, characterized in that, The air inlet guide structure (2) is provided with an inclined air outlet louver guide plate (43) at the lower end, and an adjustable telescopic plate (44) extending toward the air guide seat (42) is provided at one end of the air outlet louver guide plate (43).

6. The ion exchange membrane drying device based on fluid dynamics optimization according to claim 5, characterized in that, The air outlet guide structure (3) includes several strip-shaped air outlet louvers (31) arranged on the air outlet louver guide plate (43). The bottom of the drying outer shell (1) is provided with an air outlet plate (32) located on the upper side of the film roll. The air outlet plate (32) is provided with several air outlet holes (33) arranged in a matrix.

7. A dedicated drying device for ion exchange membranes based on fluid dynamics optimization according to claim 6, characterized in that, An air outlet channel (34) is formed between the air outlet louver guide plate (43) and the air outlet plate (32).

8. A dedicated drying device for ion exchange membranes based on fluid dynamics optimization according to claim 1, characterized in that, The balance wind plate structure (5) includes a swing mesh plate (51), the middle part of which is rotated and positioned by a positioning shaft (52), and a wire mesh pressure plate (53) is provided at the upper end of the swing mesh plate (51).

9. A dedicated drying device for ion exchange membranes based on fluid dynamics optimization according to claim 8, characterized in that, The left end of the swing-type perforated plate (51) is provided with an adjustable bending part (54), and the left and right sides of the front and rear sections of the swing-type perforated plate (51) are provided with air passage slots.

10. A dedicated drying device for ion exchange membranes based on fluid dynamics optimization according to claim 1, characterized in that, The air inlet cavity (11) and the air outlet cavity (12) are interconnected, and one end of the air inlet cavity (11) is provided with an air inlet (111).

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