Temperature-regulated opening and closing device for electrolytic cell shell heat dissipation holes

Abstract

This utility model discloses a device for opening and closing heat dissipation holes in an electrolytic cell shell based on temperature regulation, relating to the field of electrolytic cell temperature control technology. It allows for convenient manual control of the opening and closing of heat dissipation holes in the electrolytic cell shell according to actual production needs. The device includes a slider, a return spring, a pull rod, and a housing. The slider slides up and down inside the housing, and its interior has a guide groove that pulls the pull rod within the groove. One end of the return spring is connected to the slider, and the other end is connected to the housing, providing power for the slider's reset. One end of the pull rod is fixed to the housing, and the other end moves within the guide groove, with the hook at point A in a locked state. The housing is welded below the heat dissipation holes, providing a fixing function and also serving as a guide rail for the slider's up and down movement. This utility model solves the problem of a fixed heat dissipation structure in the electrolytic cell shell, making timely adjustments impossible. It features a feature that allows for rapid manual opening and closing of the heat dissipation holes through an external structure, is compact, and easy to maintain, making it particularly suitable for production environments with limited space.

Description

Technical Field

[0001] This utility model relates to a device for opening and closing heat dissipation holes in an electrolytic cell shell based on temperature regulation, belonging to the technical field of aluminum electrolysis equipment. Background Technology

[0002] Currently, heat dissipation in aluminum electrolytic cells primarily relies on natural convection and radiation from the cell shell surface. The design of the cell shell, including its dimensions, material, and the arrangement of heat dissipation fins, is based on a predetermined thermal equilibrium point. However, in actual production, the thermal state of the electrolytic cell is dynamically disturbed by various factors, such as:

[0003] 1. Current fluctuations: Peak-valley electricity pricing and flexible production lead to current fluctuations, which directly affect the heat generation in the tank.

[0004] 2. Ambient temperature changes: Seasonal changes, such as winter and summer, cause changes in the ambient temperature of the workshop, which significantly alters the heat dissipation rate of the tank.

[0005] 3. Changes in cell age: As the electrolytic cell operates for longer periods, the cell lining material will change, and the thickness and shape of the side furnace walls will also change, thus affecting thermal resistance and heat loss.

[0006] The existing furnace shell structure is static and passive. Its heat dissipation capacity is fixed after design and construction, and it cannot respond to the aforementioned dynamic thermal disturbances. When the heat input in the furnace exceeds the heat output, it will cause the furnace temperature to rise, which may melt the side furnace walls, erode the furnace lining, and even cause serious safety accidents such as furnace leakage. Conversely, when the heat input is insufficient, it will cause the furnace walls to thicken excessively, causing the furnace chamber to shrink, uneven current distribution, and ultimately affecting current efficiency and energy consumption.

[0007] In terms of thermal balance control, the industry mainly focuses on adjusting heat input by modifying process parameters such as electrode spacing, aluminum level, and electrolyte level, while there is a severe lack of active adjustment methods for heat output (i.e., heat dissipation). The few attempts made are mostly manual interventions, such as manually closing some ventilation openings or installing insulation boards in winter. However, this method is slow to respond, has low precision, and cannot achieve accurate closed-loop control.

[0008] Therefore, developing a device that can actively and timely respond to changes in the temperature of the electrolytic cell and adjust the heat dissipation intensity in a timely manner is of great significance for achieving "precise thermal control" of aluminum electrolytic cells. Utility Model Content

[0009] The purpose of this invention is to provide a device for opening and closing heat dissipation holes in an electrolytic cell shell based on temperature regulation. This transforms the thermal management of the electrolytic cell from a passive, static mode to an active, dynamic mode. Its simple structure and rapid response enable automatic temperature regulation of the electrolytic cell shell, thus solving the aforementioned long-standing technical problems.

[0010] The technical solution of this utility model is: a heat dissipation hole opening and closing device for an electrolytic cell shell based on temperature regulation, including an outer shell, a slider movably installed in the outer shell, the upper end of the slider extending out of the outer shell, a return spring and a pull rod also provided in the outer shell, the two ends of the return spring being fixedly connected to the slider and the outer shell respectively, the bottom of the pull rod being connected to the outer shell, and its upper end being inserted into the loop-shaped guide groove of the slider.

[0011] The end of the slider that extends outside the housing is provided with a closed end cap;

[0012] Inside the outer shell, a raised rib and a groove are arranged adjacent to each other along its length. At the bottom of the slider, a protrusion and a slot are arranged adjacent to each other. The protrusion is inserted into the groove, and the raised rib is inserted into the slot.

[0013] In the aforementioned electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation, the slider includes an extension block and a slider body located on the left and right sides of the shell respectively. The surface of the extension block is provided with a left bottom inclined block, a middle V-shaped block and a top conical block. The surface of the extension block is provided with a guide groove, which is formed by the interconnection of a left side inclined guide groove, a top V-shaped guide groove and a right side vertical guide groove. The left side inclined guide groove is formed between the left bottom inclined block and the left side of the middle V-shaped block. The top V-shaped guide groove is formed between the top of the middle V-shaped block and the bottom of the top conical block. The right side vertical guide groove is formed between the right side of the middle V-shaped block and the slider body. When the return spring is not stretched, the end of the pull rod is inserted into the left side inclined guide groove.

[0014] In the aforementioned electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation, the bottom surface height of the top tail end of the left inclined guide channel is higher than the bottom surface height of the left head end of the top V-shaped guide channel. The top V-shaped guide channel is divided into left and right parts, with the bottom surface height of the left side being higher than the bottom surface height of the right side. The bottom surface height of the right end of the top V-shaped guide channel is higher than the bottom surface height of the top head end of the right vertical guide channel. The bottom end of the right vertical guide channel is also higher than the bottom head end of the right vertical guide channel. The pull rod has an elastic structure.

[0015] In the aforementioned electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation, both ends of the pull rod are provided with downward bending heads. The upper bending head is inserted into the guide groove, and the lower bending head is inserted into the limiting hole at the bottom of the shell.

[0016] In the aforementioned electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation, the upper left of the shell (4) is the reset spring mounting area, and a reset spring limiting post is provided on the top of the extension block and the top of the reset spring mounting area.

[0017] In the aforementioned electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation, the bottom surface of the extension block has an inwardly recessed structure in the middle.

[0018] The bottom of the slider on the right side of the protrusion is spaced apart from the inner surface of the outer shell.

[0019] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has the following advantages:

[0020] (1) The mechanical structure is simple and compact, which reduces manufacturing costs and process complexity, reduces potential failure points, and makes the device more reliable and longer in industrial environments such as high temperature and dust.

[0021] (2) The opening and closing state of the heat dissipation hole can be quickly switched by pressing the slider once.

[0022] (3) The pull rod and guide groove work together to achieve stable mechanical self-locking in the open state. The unique anti-reverse step design ensures that the pull rod will not accidentally come out of the locking position under vibration or external force interference, and the working state is safe and reliable.

[0023] (4) The device has a flat structure and can be directly welded to the bottom of the heat dissipation holes, occupying very little space and making it easy to lay out and install on electrolytic cells with limited space. At the same time, the closed end cap on the top of the slider can be flexibly adapted to the specific shape of the heat dissipation holes, expanding the application scope of this utility model.

[0024] (5) The position of the slider (pop-up or press-down) directly corresponds to the actual opening and closing state of the heat dissipation hole, which is clear and intuitive. Operators can quickly confirm the current working condition from a distance and avoid misjudgment. Attached Figure Description

[0025] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the slider's structure;

[0027] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0028] Figure 4 This is a schematic diagram of the tie rod structure;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the outer shell;

[0030] Figure 6 This is a cross-sectional view of the present invention when the heat dissipation holes are closed;

[0031] Figure 7 This is a cross-sectional view of the present invention with the heat dissipation holes open;

[0032] Figure 8 for Figure 6 3D diagram;

[0033] Figure 9 for Figure 7 A 3D diagram.

[0034] Reference numerals: 1-slider, 2-return spring, 3-pull rod, 4-outer shell, 5-guide groove, 6-closed end cap, 7-rib, 8-groove, 9-protrusion, 10-slot, 11-extension block, 12-slider body, 13-left bottom stop, 14-middle V-shaped block, 15-top conical block, 16-left oblique guide groove, 17-top V-shaped guide groove, 18-right vertical guide groove, 19-bend head, 20-limiting hole, 21-return spring limiting post, 22-step. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0036] An embodiment of this utility model: A device for opening and closing heat dissipation holes in an electrolytic cell shell based on temperature regulation, comprising a shell 4, a slider 1 movably installed in the shell 4, the upper end of the slider 1 extending out of the shell 4, a return spring 2 and a pull rod 3 also provided in the shell 4, the two ends of the return spring 2 being fixedly connected to the slider 1 and the shell 4 respectively, the bottom of the pull rod 3 being connected to the shell 4, and its upper end being inserted into the loop-shaped guide groove 5 of the slider 1.

[0037] The end of the slider 1 that extends outside the outer shell 4 is provided with a closed end cap 6. The shape and size of the closed end cap 6 are adapted to the heat dissipation hole. When the slider 1 slides upward to reset, the closed end cap 6 extends into the heat dissipation hole, thereby closing the heat dissipation hole.

[0038] Inside the outer shell 4, a raised rib 7 and a groove 8 are arranged adjacent to each other along its length. At the bottom of the slider 1, a raised 9 and a slot 10 are arranged adjacent to each other. The raised rib 7 is inserted into the groove 8 and the raised rib 7 is inserted into the slot 10. This structure enables the slider 1 to slide stably up and down, ensuring that after the slider 1 is reset upwards, the closed end cap 6 at its top just extends into the heat dissipation hole.

[0039] The slider 1 includes extension blocks 11 located on the left and right sides of the outer casing 4, and a slider body 12. The surface of the extension blocks 11 is provided with a left bottom inclined stop block 13, a middle V-shaped block 14, and a top conical block 15. The surface of the extension blocks 11 is provided with guide grooves 5, which consist of a left oblique guide groove 16, a top V-shaped guide groove 17, and a right vertical guide groove 18. The bottom of the left oblique guide groove 16 connects to the bottom of the right vertical guide groove 18, and its top connects to the left end of the top V-shaped guide groove 17. The right end of the top V-shaped guide groove 17 connects to the top of the right vertical guide groove 18. The left oblique guide groove 16 is formed between the left bottom inclined stop block 13 and the left oblique side of the middle V-shaped block 14; the top V-shaped guide groove 17 is formed between the top of the middle V-shaped block 14 and the bottom of the top conical block 15; and the right vertical guide groove 18 is formed between the right side of the middle V-shaped block 14 and the slider body 12. When the return spring 2 is not stretched, the end of the pull rod 3 is inserted into the left inclined guide groove 16.

[0040] like Figure 1 , 6 As shown in Figure 8, the return spring 2 is in an unstretched state at this time, and the closed end cap 6 of the slider 1 just extends into the heat dissipation hole. When the heat dissipation hole needs to be opened, press down on the slider 1 so that the slider 1 slides vertically downward in the outer shell 4. During the downward sliding of the slider 1, the return spring 2 will be stretched. At this time, the end of the pull rod 3 slides upward along the left inclined guide groove 16. During the sliding process, the pull rod 3 will rotate at a certain angle due to the compression. When the pull rod 3 enters the top V-shaped guide groove 17 from the left inclined guide groove 16 and contacts its top wall, the slider 1 can no longer continue to descend. Release the slider 1, and under the elastic force of the return spring 2, the slider 1 will be driven upward. At this time, the end of the pull rod 3 slides along the top V-shaped guide groove 17. When the end of the pull rod 3 moves to the lowest point (point A) of the top V-shaped guide groove 17, the end of the pull rod 3 blocks the middle V-shaped block 14, and the slider 1 can no longer move upward under the elastic force of the return spring 2. At this time, the slider 1 is just at the bottom. Figure 7 , Figure 9 As shown, the heat dissipation vents remain open. When it is necessary to close the heat dissipation vents, press slider 1 again. At this time, pull rod 3 slides upward along the right guide groove of the top V-shaped guide groove 17. When pull rod 3 enters the right vertical guide groove 18 and contacts its top wall, slider 1 can no longer descend. Release slider 1, and under the elastic force of the return spring 2, slider 1 moves upward. During this process, pull rod 3 slides along the right vertical guide groove 18. As slider 1 moves upward, pull rod 3 eventually moves from the top of the right vertical guide groove 18 to the head position of the left inclined guide groove 16, i.e. Figure 1 As shown in the image, the heat dissipation hole is currently closed.

[0041] The height of the bottom surface of the top tail end of the left inclined guide groove 16 is higher than the height of the bottom surface of the left head end of the top V-shaped guide groove 17. The top V-shaped guide groove 17 is further divided into left and right parts, with the bottom surface of the left side higher than that of the right side. The bottom surface of the right end of the top V-shaped guide groove 17 is higher than the bottom surface of the top head end of the right vertical guide groove 18, and the bottom end of the right vertical guide groove 18 is higher than the bottom head end of the right vertical guide groove 18. The bottom of each guide groove has a smooth surface. This structure forms a step 22 at each guide groove joint, meaning that the bottom surface of the tail end of the previous guide groove is higher than the bottom surface of the head end of the next guide groove connected to it. The pull rod 3 has an elastic structure, ensuring that the bottom of the head end of the pull rod 3 is always in contact with the bottom surface of the guide groove during movement. Due to the step 22, it is ensured that the pull rod 3 will not accidentally come out of the locking position and reverse movement under vibration or external force interference. Furthermore, during the process of releasing slider 1, when the return spring 2 drives slider 1 to slide upward, the bottom of pull rod 3 will contact the step 22 at the adjacent guide groove. Due to the obstruction of step 22, pull rod 3 can only slide in the next guide groove. For example, when the heat dissipation vent needs to be opened, slider 1 slides vertically downward in the outer casing 4. At this time, the head of pull rod 3 slides upward along the left inclined guide groove 16. When pull rod 3 enters the top V-shaped guide groove 17 from the left inclined guide groove 16 and contacts its top wall, slider 1 can no longer continue to descend. When slider 1 is released, it is driven upward by the elastic force of the return spring 2. Since the head of pull rod 3 is always in contact with the bottom of the guide groove, and pull rod 3 has already entered the top V-shaped guide groove 17, and the bottom surface of the top V-shaped guide groove 17 is lower than the bottom surface of the left inclined guide groove 16, when slider 1 slides upward, the head of pull rod 3 will be blocked by the step 22 at the joint of the left inclined guide groove 16 and the top V-shaped guide groove 17, so that pull rod 3 cannot enter the left inclined guide groove 16 and can only slide along the top V-shaped guide groove 17. After setting step 22, the pull rod 3 can only enter the left guide groove of the top V-shaped guide groove 17 from the left oblique guide groove 16, then enter the right guide groove from the left guide groove of the top V-shaped guide groove 17, then enter the right vertical guide groove 18 from the right guide groove, and finally enter the left oblique guide groove 16 from the right vertical guide groove 18, ensuring that the pull rod 3 will not go against the flow.

[0042] Both ends of the pull rod 3 are provided with downward bending heads 19. The upper bending head 19 is inserted into the guide groove 5, and the lower bending head 19 is inserted into the limiting hole 20 at the bottom of the outer shell 4. The limiting hole 20 fixes the pull rod 3 without restricting the rotation of the pull rod 3.

[0043] The upper left of the interior of the outer shell 4 is the installation area of ​​the reset spring 2. The top of the extension block 11 and the top of the installation area of ​​the reset spring 2 are each provided with a reset spring limiting post 21, which makes it convenient to attach the hooks at both ends of the reset spring 2 to the reset spring limiting post 21, so as to realize the quick installation of the reset spring 2.

[0044] The bottom surface of the extension block 11 has an inwardly recessed structure in the middle, which reduces the contact area between the bottom surface of the extension block 11 and the inner bottom surface of the outer shell 1, reduces the friction force on the slider 1 when it slides, and ensures that the slider 1 slides smoothly.

[0045] The bottom of the slider 1 on the right side of the protrusion 9 is spaced apart from the inner surface of the outer shell 4, which reduces the contact area between the bottom surface of the slider 1 and the inner bottom surface of the outer shell 1, reduces the friction force experienced by the slider 1 when sliding, and ensures that the slider 1 slides smoothly.

[0046] This utility model discloses a temperature-regulating electrolytic cell shell heat dissipation hole opening and closing device, mainly comprising a slider 1, a return spring 2, a pull rod 3, and a housing 4. The slider 1 can slide up and down within the housing 4. When the slider 1 slides up and down, one end of the pull rod 3 moves within the guide groove 5 of the slider 1. One end of the return spring 2 is connected to the housing 4, and the other end is connected to the slider 1, providing power for the slider 1 to return to its original position. One end of the pull rod 3 is fixed to the housing 4, and the other end moves within the guide groove 5 of the slider 1.

[0047] Press-lock process: When slider 1 is pressed down, pull rod 3 will automatically move along guide groove 5. After the press stops, pull rod 3 moves to point A. Slider 1 should return to its initial position under the action of return spring 2. However, because it is hooked at point A by pull rod 3, slider 1 cannot return to its initial position and is locked at this position. This position is also the position where the heat dissipation hole is open.

[0048] Pop-up process: When slider 1 is pressed again, lever 3 will automatically move along guide groove 5. After releasing, lever 3 returns to the starting position, and slider 1 returns to the initial position under the action of reset spring 3. This position is also the position where the heat dissipation hole is closed.

[0049] The guide groove 5 is designed with a step 22 at the turning point, so that the pull rod 3 can only move along a specific trajectory and cannot go backwards. This effectively prevents accidental disengagement or backward movement caused by vibration, spring force or other external forces during locking or resetting, thereby ensuring the stability and reliability of the locking and closing states.

[0050] The electrolytic cell shell heat dissipation hole opening and closing device of this utility model consists of only four core components: slider 1, return spring 2, pull rod 3, and outer shell 4. The number of components is small, and the structure is not complex. This means fewer potential points of failure, offering advantages in production, installation, and maintenance, and resulting in higher operational reliability.

[0051] The electrolytic cell shell heat dissipation hole opening and closing device of this utility model has a compact structure and can be easily welded below the heat dissipation hole without occupying too much extra space, making it very suitable for electrolytic cell environments with limited space.

[0052] The electrolytic cell shell heat dissipation hole opening and closing device of this utility model has a slider 1 that pops up or is pressed in different physical positions, which directly corresponds to the "closed" and "open" state of the heat dissipation hole. The operator can intuitively judge the current state.

[0053] The above description is merely a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims

1. A device for opening and closing heat dissipation holes in an electrolytic cell shell based on temperature regulation, characterized in that: It includes a housing (4), in which a slider (1) is movably installed. The upper end of the slider (1) extends out of the housing (4). The housing (4) also contains a return spring (2) and a pull rod (3). The two ends of the return spring (2) are fixedly connected to the slider (1) and the housing (4) respectively. The bottom of the pull rod (3) is connected to the housing (4), and its upper end is inserted into the loop-shaped guide groove (5) of the slider (1). The end of the slider (1) extending outside the outer shell (4) is provided with a closed end cap (6). Inside the outer shell (4), a rib (7) and a groove (8) are arranged adjacent to each other along its length. At the bottom of the slider (1), a protrusion (9) and a slot (10) are arranged adjacent to each other. The protrusion (9) is inserted into the groove (8), and the rib (7) is inserted into the slot (10).

2. The electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation according to claim 1, characterized in that: The slider (1) includes an extension block (11) located on the left and right sides of the outer shell (4) and a slider body (12). The surface of the extension block (11) is provided with a left bottom inclined block (13), a middle V-shaped block (14) and a top conical block (15). The surface of the extension block (11) is provided with a guide groove (5). The guide groove (5) is formed by the left side inclined guide groove (16), the top V-shaped guide groove (17) and the right side vertical guide groove (18) interconnected. The left side inclined guide groove (16) is formed between the left bottom inclined block (13) and the left side of the middle V-shaped block (14). The top V-shaped guide groove (17) is formed between the top of the middle V-shaped block (14) and the bottom of the top conical block (15). The right side vertical guide groove (18) is formed between the right side of the middle V-shaped block (14) and the slider body (12). When the reset spring (2) is not stretched, the end of the pull rod (3) is inserted into the left side inclined guide groove (16).

3. The electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation according to claim 2, characterized in that: The height of the bottom surface of the top tail end of the left inclined guide groove (16) is higher than the height of the bottom surface of the left head end of the top V-shaped guide groove (17). The top V-shaped guide groove (17) is divided into left and right parts. The height of the bottom surface of the left side is higher than the height of the bottom surface of the right side. The height of the bottom surface of the right end of the top V-shaped guide groove (17) is higher than the height of the bottom surface of the top head end of the right vertical guide groove (18). The height of the bottom end of the right vertical guide groove (18) is higher than the height of the bottom head end of the right vertical guide groove (18). The pull rod (3) is an elastic structure.

4. The electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation according to claim 1, characterized in that: Both ends of the pull rod (3) are provided with downward bending heads (19). The upper bending head (19) is inserted into the guide groove (5), and the lower bending head (19) is inserted into the limiting hole (20) at the bottom of the outer shell (4).

5. The electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation according to claim 2, characterized in that: The upper left of the inner shell (4) is the installation area of ​​the reset spring (2). A reset spring limiting post (21) is provided on the top of the extension block (11) and the top of the installation area of ​​the reset spring (2).

6. The electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation according to claim 2, characterized in that: The bottom surface of the extension block (11) has an inwardly recessed structure in the middle.

7. The electrolytic cell shell heat dissipation hole opening and closing device based on temperature regulation according to claim 1, characterized in that: The bottom of the slider (1) on the right side of the protrusion (9) is spaced apart from the inner surface of the outer shell (4).

Images