A crossover bus device for reducing black voltage during aluminum electrolysis cell shutdown

Abstract

This utility model belongs to the field of aluminum electrolysis technology and relates to a bridging bus device for reducing black voltage during aluminum electrolysis cell shutdown. The device includes two sets of parallel bridging devices; each set includes a first connector and several bridging components, as well as a second connector; each bridging component includes several first arc-shaped bridging assemblies, a main bridging bus, and a second arc-shaped bridging assembly. This utility model connects the main bridging bus to the electrolytic cell bus system through the arc-shaped bridging assemblies and connectors. The arc-shaped structure adapts to the thermal expansion and contraction of the bus due to temperature changes, reducing the risk of connection failure or breakage caused by mechanical stress; the parallel arc-shaped components reduce power loss and improve current transmission efficiency, thereby reducing abnormal voltage during cell shutdown, ensuring system stability, and avoiding voltage anomalies caused by local overheating or current concentration; a temperature monitoring device collects bus temperature data in real time, directly reflecting the operating status of the conductive circuit.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum electrolysis technology, specifically, it relates to a crossover bus device for reducing black voltage during aluminum electrolysis shutdown. Background Technology

[0002] During aluminum electrolysis production, electrolytic cells may need to be shut down for various reasons. When an electrolytic cell is shut down, the current distribution in the bus system changes, resulting in black voltage at the shutdown point. The presence of black voltage not only causes additional energy loss but may also damage the bus system and related equipment, affecting the stability and safety of the entire aluminum electrolysis production system.

[0003] Currently, existing crossover busbar devices are not very effective in reducing black voltage during aluminum electrolysis cell shutdown. They suffer from problems such as complex structure, inconvenient installation, and high crossover resistance, failing to effectively meet the needs of actual production. Therefore, developing a crossover busbar device that can effectively reduce black voltage during aluminum electrolysis cell shutdown is of significant practical importance. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a bridging busbar device for reducing black voltage during aluminum electrolysis cell shutdown, comprising two sets of parallel bridging devices; each set of bridging devices includes a first connector and several bridging components, as well as a second connector; each bridging component includes several first arc-shaped bridging assemblies, a main bridging busbar, and a second arc-shaped bridging assembly; both the first and second arc-shaped bridging assemblies include several arc-shaped components arranged in parallel; one end of the arc-shaped component of the first arc-shaped bridging assembly is fixedly connected to the first connector, and the other end is fixedly connected to the main bridging busbar; one end of the arc-shaped component of the second arc-shaped bridging assembly is fixedly connected to the second connector, and the other end is fixedly connected to the main bridging busbar;

[0005] A temperature monitoring device is installed on the main bridging busbar; the temperature monitoring device includes a housing, a temperature sensor, a microcontroller, and a display; one side of the temperature sensor is fixed to the main bridging busbar; the microcontroller is located inside the housing; the display is located outside the housing; the temperature sensor is electrically connected to the input terminal of the microcontroller; the display is electrically connected to the output terminal of the microcontroller.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the arc-shaped component is a telescopic structure; the telescopic structure includes a first arc-shaped component, an intermediate connecting component, and a second arc-shaped component;

[0008] One end of the first arc-shaped member of the first arc-shaped jumper assembly is fixedly connected to the first connector; the other end of the first arc-shaped member of the first arc-shaped jumper assembly is provided with a first opening structure; one end of the second arc-shaped member of the first arc-shaped jumper assembly is provided with a second opening structure; one end of the intermediate connector of the first arc-shaped jumper assembly is disposed in the first opening structure, and the other end of the intermediate connector of the first arc-shaped jumper assembly is disposed in the second opening structure.

[0009] One end of the first arc-shaped member of the second arc-shaped jumper assembly is fixedly connected to the first connector; the other end of the first arc-shaped member of the second arc-shaped jumper assembly is provided with a third opening structure; one end of the second arc-shaped member of the second arc-shaped jumper assembly is provided with a fourth opening structure; one end of the intermediate connector of the second arc-shaped jumper assembly is provided in the third opening structure, and the other end of the intermediate connector of the second arc-shaped jumper assembly is provided in the fourth opening structure.

[0010] Furthermore, the first opening structure, the second opening structure, the third opening structure, and the fourth opening structure all include multiple openings arranged in parallel, and adjacent openings are connected.

[0011] Furthermore, the intermediate connector is an arc-shaped plate, and the arc-shaped plate is provided with several protrusions that cooperate with multiple parallel openings; the number of protrusions is the same as the number of openings, and each protrusion enters the corresponding opening.

[0012] Furthermore, the arc-shaped component includes several arc-shaped crossover components arranged in parallel, and the distance between the arc-shaped crossover components arranged in parallel is less than a set threshold.

[0013] Furthermore, thermally conductive adhesive is provided on one side of the temperature sensor; one side of the temperature sensor is fixed to the main bridging busbar by the thermally conductive adhesive.

[0014] Furthermore, sleeves are fixedly provided on the sides of both the first and second connecting members; one end of each arc-shaped member is fixedly installed inside the sleeve.

[0015] Furthermore, grooves are provided at both ends of the main bridging busbar; the end of each arc-shaped component closest to the main bridging busbar is placed in the groove.

[0016] Furthermore, a protective cover is installed on the side of the temperature sensor away from the main bridging busbar.

[0017] Furthermore, an insulating protective layer is provided on the outside of the main bridging busbar.

[0018] The beneficial effects of this utility model are:

[0019] (1) The main crossover busbar is connected to the electrolytic cell busbar system through the arc-shaped crossover assembly and connector. The arc-shaped structure can effectively adapt to the thermal expansion and contraction of the busbar due to temperature changes during aluminum electrolysis, reduce the risk of connection failure or breakage caused by mechanical stress, and improve the durability and reliability of the device.

[0020] (2) The parallel arc-shaped components increase the conductive cross-sectional area, reduce contact resistance and overall impedance, reduce power loss, and improve current transmission efficiency, thereby reducing abnormal voltage when the tank is shut down; the two sets of parallel jumpers form a redundant structure. Even if a single jumper fails locally, the other set can still maintain its conductive function to ensure system stability. At the same time, the multi-path conductive design makes the current distribution more uniform and avoids voltage abnormalities caused by local overheating or current concentration.

[0021] (3) The temperature monitoring device integrated in the main crossover busbar can collect busbar temperature data in real time and directly reflect the operating status of the conductive circuit. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a cross-connection busbar device for reducing black voltage during aluminum electrolysis shutdown provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the telescopic structure;

[0024] Figure 3 This is a schematic diagram of the cross-sections of the first and second arc-shaped components.

[0025] Icons: 1-First connector; 2-First arc-shaped jumper assembly; 3-Main jumper busbar; 4-Second arc-shaped jumper assembly; 5-Second connector; 6-Temperature monitoring device; 7-First arc-shaped component; 8-Intermediate connector; 9-Second arc-shaped component; 10-Opening. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] As an example, see the attached document. Figure 1As shown, to solve the above-mentioned technical problems, this embodiment provides a bridging bus device for reducing the black voltage of aluminum electrolysis cell shutdown, including two sets of bridging devices arranged in parallel; each set of bridging devices includes a first connector 1 and several bridging components, and a second connector 5; the bridging components include several first arc-shaped bridging assemblies 2, a main bridging bus 3 and a second arc-shaped bridging assembly 4; both the first arc-shaped bridging assembly 2 and the second arc-shaped bridging assembly 4 include several arc-shaped components arranged in parallel; one end of the arc-shaped component of the first arc-shaped bridging assembly 2 is fixedly connected to the first connector 1, and the other end is fixedly connected to the main bridging bus 3; one end of the arc-shaped component of the second arc-shaped bridging assembly 4 is fixedly connected to the second connector 5, and the other end is fixedly connected to the main bridging bus 3;

[0028] A temperature monitoring device 6 is installed on the main bridging bus 3; the temperature monitoring device 6 includes a housing, a temperature sensor, a microcontroller, and a display; one side of the temperature sensor is fixed on the main bridging bus 3; the microcontroller is located inside the housing; the display is located outside the housing; the temperature sensor is electrically connected to the input terminal of the microcontroller; the display is electrically connected to the output terminal of the microcontroller.

[0029] The main bridging busbar is connected to the electrolytic cell busbar system via arc-shaped bridging components and connectors. The arc-shaped structure effectively accommodates the thermal expansion and contraction of the busbar due to temperature changes during aluminum electrolysis, reducing the risk of connection failure or breakage caused by mechanical stress and improving the durability and reliability of the equipment. The parallel arc-shaped components increase the conductive cross-sectional area, reduce contact resistance and overall impedance, reduce power loss, and improve current transmission efficiency, thereby reducing abnormal voltage during cell shutdown. The two sets of parallel bridging devices form a redundant structure; even if one set of bridging components experiences a partial failure, the other set can still maintain conductivity, ensuring system stability. At the same time, the multi-path conductive design makes the current distribution more uniform, avoiding voltage anomalies caused by local overheating or current concentration.

[0030] The temperature monitoring device integrated into the main busbar can collect busbar temperature data in real time, directly reflecting the operating status of the conductive circuit.

[0031] The aluminum electrolysis environment is characterized by high temperature, high current, and strong magnetic field. The mechanical flexibility of the arc-shaped structure, combined with the stable connection of conductive components, allows for long-term resistance to vibration and thermal deformation, reducing the risk of cell shutdown due to structural failure and ensuring continuous production. This invention systematically solves the black voltage problem caused by increased contact resistance, uneven conductivity, and abnormal temperature during aluminum electrolysis cell shutdowns, and features high reliability, low energy consumption, easy maintenance, and intelligent monitoring.

[0032] Optionally, the curved component is a telescopic structure; as shown in the attached document. Figure 2 As shown, the telescopic structure includes a first arc-shaped component 7, an intermediate connecting component 8, and a second arc-shaped component 9;

[0033] One end of the first arc-shaped member 7 of the first arc-shaped bridging assembly is fixedly connected to the first connector; the other end of the first arc-shaped member 7 of the first arc-shaped bridging assembly is provided with a first opening structure; one end of the second arc-shaped member 9 of the first arc-shaped bridging assembly is provided with a second opening structure; one end of the intermediate connector 8 of the first arc-shaped bridging assembly is disposed in the first opening structure, and the other end of the intermediate connector 8 of the first arc-shaped bridging assembly is disposed in the second opening structure.

[0034] One end of the first arc-shaped member 7 of the second arc-shaped jumper assembly is fixedly connected to the first connector; the other end of the first arc-shaped member 7 of the second arc-shaped jumper assembly is provided with a third opening structure; one end of the second arc-shaped member 9 of the second arc-shaped jumper assembly is provided with a fourth opening structure; one end of the intermediate connector 8 of the second arc-shaped jumper assembly is provided in the third opening structure, and the other end of the intermediate connector 8 of the second arc-shaped jumper assembly is provided in the fourth opening structure.

[0035] The telescopic structure makes the installation and disassembly of the device more convenient, and facilitates maintenance and replacement.

[0036] Optional, as shown in the appendix Figure 3 As shown, the first opening structure, the second opening structure, the third opening structure and the fourth opening structure all include multiple openings 10 arranged in parallel, and adjacent openings 10 are connected.

[0037] Optionally, the intermediate connector is an arc-shaped plate, and the arc-shaped plate is provided with several protrusions that cooperate with multiple parallel openings; the number of protrusions is the same as the number of openings, and each protrusion enters the corresponding opening.

[0038] The protrusions with parallel openings entering the corresponding openings can enhance the connection stability between the intermediate connector and the first arc-shaped component, as well as between the intermediate connector and the second arc-shaped component.

[0039] Optionally, the arc-shaped component includes several arc-shaped jumpers arranged in parallel, and the distance between the arc-shaped jumpers arranged in parallel is less than a set threshold.

[0040] Optionally, thermally conductive adhesive is provided on one side of the temperature sensor; one side of the temperature sensor is fixed to the main bridging busbar by the thermally conductive adhesive.

[0041] The temperature sensor contacts the busbar via thermally conductive adhesive to ensure data accuracy.

[0042] Optionally, sleeves are fixedly provided on the sides of both the first and second connectors; one end of each arc-shaped component is fixedly provided inside the sleeve.

[0043] Optionally, grooves are provided at both ends of the main bridging busbar; the end of each arc-shaped component closest to the main bridging busbar is placed in the groove.

[0044] Optionally, a protective cover is provided on the side of the temperature sensor away from the main bridging bus.

[0045] By installing a protective cover, the temperature detected by the temperature sensor is prevented from being affected by the environment, thus improving the accuracy of temperature monitoring.

[0046] Optionally, an insulating protective layer is provided on the outside of the main bridging busbar.

[0047] By installing an insulating protective layer and a temperature monitoring device, it is possible to effectively prevent safety accidents such as leakage and short circuit, and monitor the temperature of the device in real time to ensure that the device operates within a safe operating range.

[0048] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cross-connection busbar device for reducing black voltage during aluminum electrolysis cell shutdown, characterized in that, It includes two sets of parallel jumper devices; each set of jumper devices includes a first connector (1) and several jumper components, and a second connector (5); the jumper components include several first arc-shaped jumper assemblies (2), a main jumper bus (3) and a second arc-shaped jumper assembly (4); both the first arc-shaped jumper assembly (2) and the second arc-shaped jumper assembly (4) include several arc-shaped components arranged in parallel; one end of the arc-shaped component of the first arc-shaped jumper assembly (2) is fixedly connected to the first connector (1), and the other end is fixedly connected to the main jumper bus (3); one end of the arc-shaped component of the second arc-shaped jumper assembly (4) is fixedly connected to the second connector (5), and the other end is fixedly connected to the main jumper bus (3); A temperature monitoring device (6) is installed on the main bridging bus (3); the temperature monitoring device (6) includes a housing, a temperature sensor, a microcontroller and a display; one side of the temperature sensor is fixed on the main bridging bus (3); the microcontroller is installed inside the housing; the display is installed outside the housing; the temperature sensor is electrically connected to the input terminal of the microcontroller; the display is electrically connected to the output terminal of the microcontroller.

2. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, The arc-shaped component is a telescopic structure; the telescopic structure includes a first arc-shaped component (7), an intermediate connecting component (8), and a second arc-shaped component (9); One end of the first arc-shaped member (7) of the first arc-shaped bridging assembly (2) is fixedly connected to the first connector (1); the other end of the first arc-shaped member (7) of the first arc-shaped bridging assembly (2) is provided with a first opening structure; one end of the second arc-shaped member (9) of the first arc-shaped bridging assembly (2) is provided with a second opening structure; one end of the intermediate connector (8) of the first arc-shaped bridging assembly (2) is provided in the first opening structure, and the other end of the intermediate connector (8) of the first arc-shaped bridging assembly (2) is provided in the second opening structure; One end of the first arc-shaped member (7) of the second arc-shaped bridging assembly (4) is fixedly connected to the first connector (1); the other end of the first arc-shaped member (7) of the second arc-shaped bridging assembly (4) is provided with a third opening structure; one end of the second arc-shaped member (9) of the second arc-shaped bridging assembly (4) is provided with a fourth opening structure; one end of the intermediate connector (8) of the second arc-shaped bridging assembly (4) is provided in the third opening structure, and the other end of the intermediate connector (8) of the second arc-shaped bridging assembly (4) is provided in the fourth opening structure.

3. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 2, characterized in that, The first opening structure, the second opening structure, the third opening structure and the fourth opening structure each contain multiple openings (10) arranged in parallel, and adjacent openings (10) are connected to each other.

4. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 3, characterized in that, The intermediate connector (8) is an arc-shaped plate, and the arc-shaped plate is provided with several protrusions that cooperate with several parallel openings (10); the number of protrusions is the same as the number of openings (10), and each protrusion enters the corresponding opening (10).

5. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, The arc-shaped component includes several arc-shaped jumpers arranged in parallel, and the distance between the arc-shaped jumpers arranged in parallel is less than a set threshold.

6. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, Thermally conductive adhesive is provided on one side of the temperature sensor; one side of the temperature sensor is fixed to the main bridging busbar (3) by the thermally conductive adhesive.

7. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, Both the first connector (1) and the second connector (5) are fixedly provided with sleeves on their sides; one end of each arc-shaped component is fixedly provided inside the sleeve.

8. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, Both ends of the main bridging busbar (3) are provided with grooves; the end of each arc-shaped component near the main bridging busbar (3) is set in the groove.

9. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, A protective cover is provided on the side of the temperature sensor away from the main crossover busbar (3).

10. The bridging busbar device for reducing black voltage during aluminum electrolysis shutdown as described in claim 1, characterized in that, An insulating protective layer is provided on the outside of the main bridging busbar (3).

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