Anode film horizontal overflow port anti-blocking device and anode film system

Abstract

The utility model relates to electrophoresis equipment device technical field more specifically, relate to an anode film horizontal overflow port anti -blocking device and anode film system, including device body, device body is the pipe fitting structure of both ends open, device body includes first pipe body and second pipe body, one end of first pipe body and one end of second pipe body are linked together, the included angle of first pipe body and second pipe body is 90 DEG, and one end of first pipe body away from second pipe body is connected with overflow port. The utility model makes the anode overflow port of electrophoresis system not easy to take place the blockage, reduced the impurity deposition, has stronger low flow rate ability.

Description

Technical Field

[0001] This utility model relates to the technical field of electrophoresis equipment, and more specifically, to an anti-clogging device for a horizontal overflow port of an anode membrane and an anode membrane system. Background Technology

[0002] Electrophoretic coating is a coating method that uses an external electric field to cause pigments and resin particles suspended in an electrophoretic solution to migrate directionally and deposit onto the surface of a substrate, one of the electrodes. Developed over the past 30 years, electrophoretic coating is a special film-forming method and is the most practically significant construction process for water-based coatings. It features water solubility, non-toxicity, and ease of automation, leading to its rapid and widespread application in the automotive, building materials, hardware, and home appliance industries. Compared to anodic electrophoresis and dip coating, cathodic electrophoresis is a more advanced coating process. It is a primary means of extending the service life of coated objects and is widely used in the automotive, home appliance, machinery, and hardware industries, imparting excellent decorative, corrosion-resistant, and weather-resistant properties to processed parts. In cathodic electrophoresis, the electrophoretic coating used is a cationic resin and pigment paste, with the substrate serving as the cathode. The initial reaction at the cathode is the electrolysis of water to form hydrogen and hydroxide ions. This reaction creates a highly alkaline interface layer on the cathode surface, causing positively charged particles to aggregate on the cathode. The cations react with the hydroxide ions to produce a coating film. Organic acids are continuously generated in the anode region. If these acids are not removed in time, they will cause the pH value of the bath to drop, affecting the stability of process parameters, impacting the penetration power, increasing the resolubility of the coating, and accelerating the consumption of positively charged electrodes. Therefore, the anode system needs to release the acid radical ions generated during the electrophoresis process from the electrophoresis tank into the anolyte, and then remove the acid radical ions from the system by adding water to the anode tank to dilute the anolyte through controlled conductivity. Existing arc-shaped anode membrane technology for electrophoretic coating has shortcomings. The overflow port for anolyte circulation and renewal is a horizontal straight discharge type. During daily use, the flow rate of anolyte is low when it flows through this port, and impurities and bacteria in the anolyte can easily settle and cause blockage. Consequently, the anolyte cannot overflow smoothly into the electrophoresis tank, causing abnormalities in key parameters such as pH, conductivity, and MEQ of the electrophoresis tank. At the same time, it leads to ineffective anolyte circulation, a continuous increase in the concentration of acid radical ions in the electrode solution inside the anode membrane, and a decrease in ion exchange efficiency, resulting in poor electrophoretic quality. To prevent overflow port blockage, the anode membrane needs to be inspected and cleaned for bacteria. When anolyte overflows into the electrophoresis tank, it is necessary to use reagents to recombine the anolyte and adjust the electrophoresis tank parameters by increasing water replenishment and wastewater discharge. These tasks significantly impact the working efficiency of the electrophoresis apparatus, increase the workload of operators, and seriously affect the safety of using the electrophoresis apparatus. Utility Model Content

[0003] To address the technical problem of easy clogging of the anode membrane overflow port in the prior art, this utility model provides an anti-clogging device for the horizontal overflow port of the anode membrane and an anode membrane system, which makes the anode overflow port of the electrophoresis system less prone to clogging, reduces impurity deposition, and has a strong resistance to low flow rates.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an anti-clogging device for a horizontal overflow port of an arc-shaped anode film, comprising a device body, wherein the device body is an "L"-shaped pipe structure with open ends, the device body includes a first pipe and a second pipe, one end of the first pipe is connected to one end of the second pipe, the angle between the first pipe and the second pipe is 90°, and the end of the first pipe away from the second pipe is connected to the overflow port.

[0005] In this technical solution, the device body is installed at the existing anode membrane overflow port. The device body includes a first tube and a second tube, with the first tube connected to the overflow port. After installation, the first tube and the overflow port are in the same direction, i.e., horizontal, while the second tube is at a 90° angle to the first tube, i.e., vertical. When the anolyte overflows, it first enters the second tube. Only after the anolyte has overflowed the top of the second tube can it enter the first tube. Finally, the anolyte flows through the first tube to the overflow port and overflows. Throughout the process, the anolyte that does not enter the second tube is separated from the overflow port by the device body and cannot overflow. Therefore, the anolyte that can overflow must pass through the second tube, and it can only be discharged from the overflow port when the anolyte overflows the top of the second tube and is higher than the bottom of the inner wall of the first tube. On the one hand, during the process of the anolyte entering the first tube from the second tube, impurities and bacteria in the anolyte must first overcome the influence of their own gravity. In this process, the anolyte and the suspended matter within it are confined within the internal space of the second tube. This makes it easier for the suspended matter in the second tube to collide and entangle with each other, increasing their weight and preventing them from moving upwards with the anolyte under their own gravity. This allows for gravity-assisted slag removal, preventing impurities and bacteria from entering the first tube and settling there or at the overflow port. Lighter suspended matter can overflow directly with the anolyte without settling in the first tube or overflow port. On the other hand, lighter suspended matter generally floats on the surface of the anolyte. When the anolyte is discharged from the overflow port, its surface level must be higher than that of the second tube. The inlet of the second tube is located at the bottom of the second tube. Therefore, when the overflow port is operating, the inlet of the second tube must be below the surface of the anolyte. Most of the lighter suspended matter floating on the surface of the anolyte cannot enter the inlet of the second tube, thus reducing the amount of suspended matter that can enter the overflow port and lowering the risk of blockage.

[0006] Preferably, the length of the second tube is not less than 1.5 times the inner diameter of the second tube.

[0007] Preferably, the first tube body is further provided with a plug-in portion at one end away from the second tube body. The plug-in portion is a hollow tubular structure and is plugged into the overflow port.

[0008] Preferably, the outer diameter of the insertion part is smaller than the outer diameter of the first tube body, the outer diameter of the first tube body is larger than the diameter of the overflow port, and an abutting surface is formed between the outer wall surface of the insertion part and the outer wall surface of the first tube body, the abutting surface abutting against the external structure of the overflow port.

[0009] Preferably, the insertion part is a conical structure whose outer radial direction decreases in the direction of the first tube body.

[0010] Preferably, an inspection port is also provided on the top of the second pipe body.

[0011] Preferably, the inspection port is a slanted opening structure that slopes downward away from the first pipe body, and the lower end of the inspection port is higher than the bottom end of the inner wall of the first pipe body.

[0012] Preferably, the diameter of the second tube decreases downwards.

[0013] Preferably, the surface of the device body also has a smooth hydrophobic layer, which is a PVC material structure or a PTFE material structure.

[0014] This utility model also provides an anode membrane system, including an ion exchange membrane, an anode tank, a water injection pipe, an electrode, and the aforementioned anode membrane horizontal overflow anti-clogging device. The ion exchange membrane is the tank wall surface on one side of the anode tank. The electrode is fixed inside the anode tank. The two ends of the water injection pipe are respectively connected to the bottom of the anode tank and an external water source. An overflow port is also provided on the tank wall surface of the anode tank. The overflow port is higher than the water injection pipe and is horizontally arranged. The anode membrane horizontal overflow anti-clogging device is installed at the end of the overflow port facing the inside of the anode tank.

[0015] In this technical solution, acid radical ions in the electrophoresis tank pass through the ion exchange membrane into the anode tank. The electrode is connected to the power supply and ionizes to generate hydrogen ions in the anode tank, which attract acid radical ions. Water is injected into the anode tank through the water injection pipe to reduce the acid concentration in the anode tank. The liquid level of the anolyte rises from the bottom of the anode tank until it reaches the overflow port and overflows. An anode membrane horizontal overflow anti-clogging device is installed at the overflow port to prevent suspended solids and impurities in the anolyte from settling and causing blockage.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the device body can be directly installed at the existing overflow port, making full use of the existing structure. The device body includes a second tube, which, on the one hand, ensures that the anolyte must pass through the vertically positioned second tube before entering the overflow port, thereby achieving gravity-assisted separation; on the other hand, the inlet of the second tube is located below the surface of the anolyte, preventing light suspended matter suspended on the surface of the anolyte from flowing in, reducing the possibility of blockage between the overflow port and the first tube. Attached Figure Description

[0017] Figure 1 This is a front view of the anti-clogging device for the horizontal overflow port of the arc-shaped anode membrane of this utility model;

[0018] Figure 2 This is a top view of the anti-clogging device for the horizontal overflow port of the arc-shaped anode membrane of this utility model;

[0019] Figure 3 This is a left view of the anti-clogging device for the horizontal overflow port of the arc-shaped anode membrane of this utility model.

[0020] In the attached diagram: 1. Device body; 2. Connecting part; 3. Inspection port; 11. First tube body; 12. Second tube body; 13. Abutting surface. Detailed Implementation

[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0024] Example 1

[0025] like Figure 1 , 2 As shown, an anti-clogging device for a horizontal overflow port of an anode membrane includes a device body 1, which is a pipe structure open at both ends. The device body 1 includes a first pipe 11 and a second pipe 12. One end of the first pipe 11 is connected to one end of the second pipe 12, and the angle between the first pipe 11 and the second pipe 12 is 90°. The end of the first pipe 11 away from the second pipe 12 is connected to the overflow port. The device body 1 is installed at an existing anode membrane overflow port. When the anolyte overflows, it first enters the second pipe 12. Only after the anolyte has overflowed past the top of the second pipe 12 can it enter the first pipe 11. Finally, the anolyte flows through the first pipe 11 to the overflow port and overflows. Throughout the process, the anolyte that does not enter the treatment section is separated from the overflow port by the device body 1 and cannot overflow. Therefore, the anolyte that can overflow from the overflow port must pass through the second tube 12, and the anolyte can only be discharged from the overflow port when the top of the second tube 12 is higher than the bottom of the first tube 11. On the one hand, during the process of the anolyte entering the first tube 11 from the second tube 12, impurities and bacteria in the anolyte must first overcome the influence of their own gravity. In this process, the anolyte and the suspended matter inside the anolyte are confined in the internal space of the second tube 12, making it easy for the suspended matter in the second tube 12 to collide and entangle with each other, increasing the weight of the suspended matter, so that it cannot continue to move upward with the anolyte under its own gravity. This achieves gravity-assisted slag discharge, preventing impurities and bacteria from entering the first tube 11 and settling in the first tube 11 or the overflow port, while the light suspended matter can be directly overflowed and discharged with the anolyte without settling in the first tube 11 or the overflow port. On the other hand, light suspended matter generally floats on the surface of the anolyte. When the anolyte is discharged from the overflow port, its surface height must be higher than that of the second tube 12. The inlet of the second tube 12 is located at the bottom of the second tube 12. Therefore, when the overflow port is working, the inlet of the second tube 12 must be below the surface of the anolyte. Most of the light suspended matter floating on the surface of the anolyte cannot enter the inlet of the second tube 12, thereby reducing the suspended matter that can enter the overflow port and reducing the risk of blockage.

[0026] like Figure 1As shown, the length of the second tube 12 is not less than 1.5 times its inner diameter. The lower end of the second tube 12 is the liquid inlet of the entire device body 1. The inner diameter of the second tube 12 determines the amount of liquid entering the device; the larger the liquid entering the device, the more suspended solids and impurities are introduced, and the longer the length of the second tube 12 is required to achieve the same separation effect. To ensure the gravity separation effect of the second tube 12, the length of the second tube 12 should match its inner diameter. Setting the length of the second tube 12 to at least 1.5 times its inner diameter ensures that the second tube 12 can meet the separation requirements of the anolyte.

[0027] like Figure 1 As shown, the end of the first tube 11 away from the second tube 12 is also provided with a plug-in part 2. The plug-in part 2 is a hollow tubular structure and is plugged into the overflow port. The device body 1 is installed by inserting the plug-in part 2 into the overflow port, which facilitates quick installation and disassembly. It also makes full use of the existing overflow port without requiring any structural modification to the existing overflow port. This allows workers to quickly disassemble and replace the anode membrane overflow port device, enabling inspection and maintenance of the overflow port, improving the efficiency of overflow port maintenance and reducing the workload of workers.

[0028] like Figure 1 , 3 As shown, the outer diameter of the insertion part 2 is smaller than the outer diameter of the first tube 11, and the outer diameter of the first tube 11 is larger than the diameter of the overflow port. An abutment surface 13 is formed between the outer wall surface of the insertion part 2 and the outer wall surface of the first tube 11, and this abutment surface 13 abuts against the external structure of the overflow port. When installing the device body 1, the insertion part 2 can be inserted into the overflow port. However, the diameter of the first tube 11 is larger than the diameter of the overflow port, preventing the first tube 11 from entering the insertion part. Due to the difference between the diameters of the first tube 11 and the insertion part 2, an abutment surface 13 is formed between the outer wall surface of the first tube 11 and the outer wall surface of the insertion part 2. When the insertion part 2 is fully inserted into the overflow port, the abutment surface 13 abuts against the external structure of the overflow port, thus restricting further insertion of the first tube 11 into the overflow port, thereby ensuring the stability of the entire device body 1 during use.

[0029] like Figure 1As shown, the insertion part 2 is a conical structure whose outer radial direction decreases in the direction of the first tube 11. In daily use, to ensure the seal between the device body 1 and the overflow port, a sealing ring is usually fixed to the overflow port to abut against the outer wall of the insertion part 2, thereby sealing the gap between the overflow port and the insertion part 2 and preventing accidental inflow of electrode liquid. The sealing ring is generally made of an elastic material. With the insertion part 2 configured as a conical structure, the end of the insertion part 2 connected to the first tube 11 has a smaller diameter. When the device body 1 is installed on the overflow port, the sealing ring abuts against the outer wall of the smaller-diameter end of the insertion part 2. If an external force drives the insertion part 2 out of the overflow port, as the insertion part 2 moves, its diameter increases, and the space between the insertion part 2 and the overflow port decreases, causing the sealing ring to be compressed. The elasticity of the sealing ring itself resists compression, ultimately preventing the insertion part 2 from being further pulled out of the overflow port.

[0030] Example 2

[0031] This embodiment is similar to Embodiment 1 above, except that, as Figure 2 As shown, an inspection port 3 is also provided directly above the second pipe body 12. Although a second pipe body 12 is provided, it is still impossible to completely prevent the overflow port or the inside of the device body 1 from becoming blocked. Therefore, an inspection port 3 is provided directly above the second pipe body 12. During daily work, the staff can directly observe the inside of the device body 1 through the inspection port 3. During maintenance, the staff can also directly clear the blockage inside the device body 1 through the inspection port 3 without having to disassemble the entire device body 1, which improves the maintenance efficiency of the staff and reduces the workload of the staff.

[0032] like Figure 1 As shown, the inspection port 3 is a sloping structure that slopes downwards away from the first pipe body 11, with its lower end higher than the bottom of the inner wall of the first pipe body 11. This design not only facilitates maintenance by personnel, but also allows the anolyte level to rise when the drainage capacity of the inlet of the second pipe body 12 is insufficient. When the anolyte level rises to the lowest point of the inspection port 3, the anolyte can be directly discharged into the device body 1 through the inspection port 3, thereby improving drainage efficiency. Although the anolyte entering the device body 1 through the inspection port 3 does not undergo vertical separation by the second pipe body 12, the flow rate and velocity of the anolyte are high, making sedimentation less likely.

[0033] like Figure 1As shown, the diameter of the second tube 12 decreases downwards. Light suspended matter in the anolyte floats on the surface of the anolyte. The area of ​​the anolyte surface that can enter the second tube 12 is determined by the inlet at the bottom of the treatment section. The smaller the inlet at the bottom of the second tube 12, the less surface area of ​​the anolyte enters the second tube 12, and thus fewer light suspended matter enters the second tube 12. By setting the second tube 12 to have a decreasing diameter at its lower end, the inlet at the lower end of the second tube 12 is also smaller, thereby reducing the amount of light suspended matter entering the second tube 12.

[0034] like Figure 1 As shown, the surface of the device body 1 also has a smooth hydrophobic layer. By providing this smooth hydrophobic layer, the probability of deposits and bacteria adhering to the surface of the device body 1 can be reduced, thereby reducing the possibility of blockage within the device body 1. The smooth hydrophobic layer is made of PVC or PTFE material. Both PVC and PTFE are hydrophobic materials, making it difficult for liquids to remain on their surfaces. Furthermore, their smooth surfaces make it difficult for adhering substances to re-anchor themselves, thus reducing the probability of deposits and bacteria adhering to the surface.

[0035] Example 3

[0036] An anode membrane system includes an ion exchange membrane, an anode tank, a water injection pipe, electrodes, and an anti-clogging device for the horizontal overflow port of the anode membrane as described in the above embodiments. The ion exchange membrane forms one side of the tank wall of the anode tank. The electrodes are fixed inside the anode tank. The two ends of the water injection pipe are connected to the bottom of the anode tank and an external water source, respectively. An overflow port is also provided on the tank wall of the anode tank, higher than the water injection pipe, and horizontally positioned. The anti-clogging device for the horizontal overflow port of the anode membrane is installed at the end of the overflow port facing the anode tank. Acid radical ions located in the electrophoresis tank pass through the ion exchange membrane into the anode tank. The electrodes are connected to a power source and ionize in the anode tank to generate hydrogen ions that attract acid radical ions. Water is injected into the anode tank through the water injection pipe to reduce the acid concentration in the anode tank. The liquid level of the anolyte rises from the bottom of the anode tank until it reaches the overflow port and overflows. The anti-clogging device for the horizontal overflow port of the anode membrane is installed at the overflow port to prevent suspended solids and impurities in the anolyte from settling and causing blockage.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for preventing blockage of a horizontal overflow port of an anode membrane, characterized in that, The device includes a device body (1), which is a pipe structure with open ends. The device body (1) includes a first pipe (11) and a second pipe (12). One end of the first pipe (11) is connected to one end of the second pipe (12). The angle between the first pipe (11) and the second pipe (12) is 90°. The end of the first pipe (11) away from the second pipe (12) is connected to an overflow port.

2. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 1, characterized in that, The length of the second tube (12) is not less than 1.5 times the inner diameter of the second tube (12).

3. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 1, characterized in that, The first tube (11) is provided with a plug-in part (2) at one end away from the second tube (12). The plug-in part (2) is a hollow tubular structure and is plugged into the overflow port.

4. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 3, characterized in that, The outer diameter of the plug part (2) is smaller than the outer diameter of the first tube body (11), and the outer diameter of the first tube body (11) is larger than the diameter of the overflow port. An abutting surface (13) is formed between the outer wall surface of the plug part (2) and the outer wall surface of the first tube body (11), and the abutting surface (13) abuts against the external structure of the overflow port.

5. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 3, characterized in that, The outer radial direction of the plug (2) decreases in the direction of the first tube (11).

6. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 1, characterized in that, An inspection port (3) is also provided directly above the second tube (12).

7. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 6, characterized in that, The inspection port (3) is a slanted structure that slopes downward away from the first pipe body (11), and the lower end of the inspection port (3) is higher than the bottom end of the inner wall of the first pipe body (11).

8. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 1, characterized in that, The diameter of the second tube (12) decreases downward.

9. The anti-clogging device for a horizontal overflow port of an anode membrane according to claim 1, characterized in that, The surface of the device body (1) also has a smooth hydrophobic layer, which is a PVC material structure or a PTFE material structure.

10. An anode film system, characterized in that, The invention includes an ion exchange membrane, an anode tank, a water injection pipe, an electrode, and an anti-clogging device for the horizontal overflow port of the anode membrane as described in any one of claims 1 to 9. The ion exchange membrane is the tank wall surface on one side of the anode tank. The electrode is fixed inside the anode tank. The two ends of the water injection pipe are respectively connected to the bottom of the anode tank and an external water source. An overflow port is also provided on the tank wall surface of the anode tank. The overflow port is higher than the water injection pipe and is horizontally arranged. The anti-clogging device for the horizontal overflow port of the anode membrane is installed at the end of the overflow port facing the inside of the anode tank.

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