A device for detecting the bus-to-ground voltage of an aluminum electrolysis cell

Abstract

The utility model discloses a device for aluminum electrolysis cell bus voltage detection, it is by following component composition: box cover, with the bottom plate that box cover links to each other, be located in the first end push -pull type electromagnet of bottom plate top side, with the contact plate that push -pull type electromagnet one end links to each other, conductive sheet, conductive bolt passes through conductive sheet and contact plate in proper order, and then links to each other with the electric contact, with the second end of the top side of bottom plate links to each other two conductive spring leaf, be located in the main control board of mainboard, two high -voltage -resistant conducting wires, with the power cord of main control board electric connection, with the box body that box cover links to each other, the utility model has the following beneficial effects: 1, device is intermittent contact, and durable cycle is long, and flexible and reliable, 2, device inside fills up transformer oil, has the insulation capacity above 200KV, can effectively avoid lightning damage measuring equipment, 3, most of the device is standard spare, and the manufacturing cost is low, and easy maintenance.

Description

Technical Field

[0001] This utility model relates to a device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell. Background Technology

[0002] Electrolytic aluminum is aluminum obtained through electrolysis. Modern industrial production of electrolytic aluminum uses the cryolite-alumina molten salt electrolysis method. Molten cryolite is used as the solvent, alumina as the solute, carbonaceous material as the anode, and molten aluminum as the cathode. After a strong direct current is applied, an electrochemical reaction, i.e., electrolysis, takes place at the two electrodes in the electrolytic cell at 950℃-970℃.

[0003] Aluminum smelting electrolytic cells generally employ a series structure, with the voltage across the busbars exceeding 1000 volts and the busbar distribution distance exceeding 1000 meters. Leakage to ground at any point within this structure can cause serious damage. Furthermore, during production, foreign objects inevitably fall between the aluminum smelting electrolytic cell and the ground, causing a decrease in the cell's insulation performance and leading to the following adverse consequences:

[0004] (1) A short circuit in a faulty conductor will cause additional energy consumption;

[0005] (2) Short circuits in poor conductors can lead to explosions and fires, causing safety accidents.

[0006] Therefore, in order to eliminate the risk of leakage, it is necessary to regularly measure the voltage to ground of the busbar of the aluminum electrolytic cell and use the voltage distribution to analyze and find the short circuit point.

[0007] Currently, the main methods for periodically measuring the voltage to ground of the busbar in aluminum electrolytic cells include manual testing and online voltage testing. However, these technical solutions have some shortcomings:

[0008] (1) Manual inspection: Using a voltmeter to inspect point by point. Its disadvantages are low efficiency, high workload, and inability to detect problems in time.

[0009] (2) Online voltage detection: The voltmeter will form a path between the bus and the ground. The simultaneous grounding of multiple voltmeters will reduce the insulation resistance of the bus to the ground, resulting in large measurement data errors, and will damage the voltmeter when struck by lightning. Utility Model Content

[0010] Purpose of the utility model: This utility model addresses the problems existing in the prior art by disclosing a device for detecting the voltage to ground of the busbar in an aluminum electrolytic cell. This utility model provides an intermittent device for detecting the voltage to ground of the busbar in an aluminum electrolytic cell, which is grounded only during the moment of measurement and not at other times; it does not reduce the insulation resistance of the busbar to ground; it has an insulation capacity of over 200kV, effectively preventing damage to the measuring equipment from lightning strikes.

[0011] Technical solution: A device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell, comprising the following components:

[0012] The lid has at least four nylon posts mounted on it;

[0013] The base plate is fixedly connected to the nylon column;

[0014] A push-pull electromagnet is fixed to the first end of the top side of the base plate, and the push-pull electromagnet is provided with a movable guide rod;

[0015] The contact plate is connected to one end of the movable guide rod;

[0016] A conductive sheet has through holes at both ends. A conductive bolt passes through the conductive sheet and the contact plate in sequence, and is then connected to the conductive contact by a threaded connection.

[0017] Two conductive spring sheets, the conductive spring sheets being L-shaped in general, are connected to the second end of the top side of the base plate by means of screws, and the positions of the two conductive spring sheets are adapted to the positions of the two conductive contacts;

[0018] The main control board is fixedly connected to the base plate by bolts. The output end of the main control board is connected to the input end of the push-pull electromagnet and is used to control the push-pull electromagnet to be in a powered-on or powered-off state.

[0019] Two high-voltage resistant wires are used. One end of one high-voltage resistant wire is electrically connected to a conductive spring sheet, and one end of the other high-voltage resistant wire is first electrically connected to the main control board. The main control board is electrically connected to another conductive spring sheet through the wire.

[0020] The power cord extends to the outside of the box cover through a waterproof connector, and one end of the power cord is electrically connected to the main control board.

[0021] The box body is connected to the box cover by screws. A sealing ring is provided between the box body and the box cover. The cavity formed by the box body and the box cover is filled with transformer oil that can completely soak the entire push-pull electromagnet and the two conductive contacts.

[0022] Furthermore, the base plate is fixedly connected to the nylon column by screws.

[0023] Furthermore, the conductive sheet is one of copper sheet, silver sheet, aluminum sheet, brass sheet, and nickel-chromium alloy sheet.

[0024] Furthermore, the conductive bolt is one of the following: copper bolt, silver bolt, aluminum bolt, brass bolt, or nickel-chromium alloy bolt.

[0025] Furthermore, the conductive contact is one of copper contacts, silver contacts, aluminum contacts, brass contacts, and nickel-chromium alloy contacts.

[0026] Furthermore, the conductive spring sheet is one of the following: copper spring sheet, silver spring sheet, aluminum spring sheet, brass spring sheet, and nickel-chromium alloy spring sheet.

[0027] Furthermore, the main control board consists of a power supply module, a control module, a detection module, and a wireless communication module, with the output terminal of the detection module connected to the input terminal of the control module;

[0028] The output terminal of the control module is connected to the input terminal of the push-pull electromagnet, and is used to control the push-pull electromagnet to be in a powered-on state or a powered-off state.

[0029] The control module is interconnected with the wireless communication module.

[0030] The power supply module is electrically connected to the control module, the detection module, and the wireless communication module, respectively.

[0031] Furthermore, the wireless communication module is one of the following: Bluetooth module, Wi-Fi module, ZigBee module, and 4G module.

[0032] Beneficial effects: The device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell disclosed in this utility model has the following beneficial effects:

[0033] 1. The device is an intermittent contact device, which is grounded only during the measurement moment and not grounded at other times. This will not reduce the insulation resistance of the cell busbar to ground, will not affect the normal operation of the electrolytic cell, and is durable, flexible and reliable.

[0034] 2. The device is filled with transformer oil and has an insulation capacity of over 200KV, which can effectively prevent lightning strikes from damaging the measuring equipment;

[0035] 3. Most of the components in the device are standard parts, resulting in low manufacturing costs, easy maintenance, and an extremely low probability of damage from lightning strikes or other means during operation, making it reliable and durable. Attached Figure Description

[0036] Figure 1 This is a three-dimensional schematic diagram of a device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell, as disclosed in this utility model.

[0037] Figure 2 This is an internal schematic diagram of the device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell, after the casing has been removed and the device is in standby mode.

[0038] Figure 3This is an internal schematic diagram of the device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell after removing the casing, as disclosed in this utility model.

[0039] Figure 4 This is a front sectional view of a device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell, as disclosed in this utility model. Figure 4 The dashed line indicated by the middle arrow is the lowest level line for transformer oil.

[0040] Figure 5 This is an exploded schematic diagram of a device for detecting the voltage to ground of the busbar of an aluminum electrolysis cell, as disclosed in this utility model.

[0041] Figure 6 This is a schematic diagram of the box lid.

[0042] Figure 7 This is a schematic diagram of a nylon column.

[0043] Figure 8 This is a schematic diagram of the base plate.

[0044] Figure 9 This is a schematic diagram of a push-pull electromagnet.

[0045] Figure 10 This is a schematic diagram of the contact plate.

[0046] Figure 11 This is a schematic diagram of a conductive sheet.

[0047] Figure 12 This is a schematic diagram of a conductive contact.

[0048] Figure 13 This is a schematic diagram of a conductive spring sheet.

[0049] Figure 14 This is a schematic diagram of the box.

[0050] in:

[0051] Detailed Implementation

[0052] The specific embodiments of this utility model are described in detail below.

[0053] The "range" disclosed in this utility model is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10–50 is listed for a specific parameter, it is also expected that ranges of 10–40 and 20–50 are also included. Furthermore, if the minimum range values ​​are listed as 1 and 2, and the maximum range values ​​are listed as 3, 4, and 5, then the following ranges are all expected: 1–3, 1–4, 1–5, 2–3, 2–4, and 2–5. In this application, unless otherwise stated, the numerical range "a–b" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0–5" means that all real numbers between "0–5" have been listed herein; "0–5" is merely a shortened representation of these numerical combinations.

[0054] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0055] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0056] Unless otherwise specified, all steps in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0057] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0058] Unless otherwise specified, the reaction will proceed under normal temperature and pressure conditions.

[0059] Unless otherwise specified, all parts or percentages are by weight or by weight percentage.

[0060] In this invention, all the substances used are known substances that can be purchased or synthesized by known methods.

[0061] In this invention, all the devices or equipment used are conventional devices or equipment known in the art and are readily available.

[0062] A device for detecting the voltage to ground of the busbar in an aluminum electrolysis cell comprises the following components:

[0063] Box lid 1, on which at least 4 nylon pillars 2 are installed;

[0064] The base plate 3 is fixedly connected to the nylon column 2;

[0065] A push-pull electromagnet 4 is fixed to the first end of the top side of the base plate 3, and the push-pull electromagnet 4 is provided with a movable guide rod;

[0066] Contact plate 5 is connected to one end of the movable guide rod;

[0067] The conductive sheet 6 has through holes at both ends. The conductive bolt passes through the conductive sheet 6 and the contact plate 5 in sequence, and is then connected to the conductive contact 7 by a threaded connection.

[0068] Two conductive spring sheets 8 are L-shaped in general. The two conductive spring sheets 8 are connected to the second end of the top side of the base plate 3 by screw connection. The positions of the two conductive spring sheets 8 are adapted to the positions of the two conductive contacts 7.

[0069] The main control board 12 is fixedly connected to the base plate 3 by bolts. The output terminal of the main control board 12 is connected to the input terminal of the push-pull electromagnet 4, and is used to control the push-pull electromagnet 4 to be in a powered-on state or a powered-off state.

[0070] Two high-voltage resistant wires 9, one end of one high-voltage resistant wire 9 is electrically connected to a conductive spring sheet 8, and one end of the other high-voltage resistant wire 9 is first electrically connected to the main control board 12. The main control board 12 is electrically connected to the other conductive spring sheet 8 through the wires.

[0071] The power cord 10 is led out to the outside of the cover 1 through a waterproof connector, and one end of the power cord 10 is electrically connected to the main control board 12.

[0072] The box body 11 is connected to the box cover 1 by screws. A sealing ring is provided between the box body 11 and the box cover 1. The cavity formed by the box body 11 and the box cover 1 is filled with transformer oil that can completely soak the entire push-pull electromagnet 4 and the two conductive contacts 7. Figure 4 The dashed line indicated by the middle arrow represents the minimum transformer oil level line, 13. (For example...) Figure 4As shown, the lowest level line 13 of the transformer oil is located between the base plate 3 and the main control board 12.

[0073] Furthermore, the base plate 3 is fixedly connected to the nylon column 2 by means of screws.

[0074] Those skilled in the art will understand that the push-pull electromagnet 4 is a commonly used standard part in the field, such as the push-pull electromagnet of Jiexiang Electric with model number JX1264B-34.

[0075] Those skilled in the art will understand that the contact plate 5 is made of bakelite board, an insulating material.

[0076] In one embodiment, the conductive sheet 6 is a copper sheet. In another embodiment, the conductive sheet 6 is a silver sheet. In another embodiment, the conductive sheet 6 is an aluminum sheet. In another embodiment, the conductive sheet 6 is a brass sheet. In yet another embodiment, the conductive sheet 6 is a nickel-chromium alloy sheet.

[0077] In one embodiment, the conductive bolt is a copper bolt. In another embodiment, the conductive bolt is a silver bolt. In another embodiment, the conductive bolt is an aluminum bolt. In another embodiment, the conductive bolt is a brass bolt. In yet another embodiment, the conductive bolt is a nickel-chromium alloy bolt.

[0078] In one embodiment, the conductive contact 7 is a copper contact. In another embodiment, the conductive contact 7 is a silver contact. In another embodiment, the conductive contact 7 is an aluminum contact. In another embodiment, the conductive contact 7 is a brass contact. In yet another embodiment, the conductive contact 7 is a nickel-chromium alloy contact.

[0079] In one embodiment, the conductive spring sheet 8 is a copper spring sheet. In another embodiment, the conductive spring sheet 8 is a silver spring sheet. In another embodiment, the conductive spring sheet 8 is an aluminum spring sheet. In another embodiment, the conductive spring sheet 8 is a brass spring sheet. In yet another embodiment, the conductive spring sheet 8 is a nickel-chromium alloy spring sheet.

[0080] Furthermore, the main control board 12 consists of a power supply module, a control module, a detection module, and a wireless communication module, with the output terminal of the detection module connected to the input terminal of the control module;

[0081] The output terminal of the control module is connected to the input terminal of the push-pull electromagnet 4, and is used to control the push-pull electromagnet 4 to be in a powered-on state or a powered-off state.

[0082] The control module is interconnected with the wireless communication module.

[0083] The power supply module is electrically connected to the control module, the detection module, and the wireless communication module, respectively.

[0084] In one embodiment, the wireless communication module is a Bluetooth module. In another embodiment, the wireless communication module is a Wi-Fi module. In yet another embodiment, the wireless communication module is a ZigBee module. In still another embodiment, the wireless communication module is a 4G module.

[0085] like Figure 1-14 As shown, two high-voltage resistant wires 9 are led out from the cover 1. One end of each high-voltage resistant wire 9 is electrically connected to two conductive spring plates 8, the other end of one high-voltage resistant wire 9 is electrically connected to the busbar of the electrolytic cell, and the other end of the other high-voltage resistant wire 9 is grounded.

[0086] Working Principle: When it is necessary to detect the voltage to ground of the aluminum electrolysis cell busbar, the main control board 12 controls the push-pull electromagnet 4 to be energized. The movable guide rod on the push-pull electromagnet 4 is quickly pushed out, causing the two conductive contacts 7 on the movable guide rod to contact the two conductive spring plates 8. This establishes a connection between the cell busbar and the ground through the main control board 12, thus enabling the detection of the voltage to ground of the aluminum electrolysis cell busbar. The detection module on the main control board 12 runs a program to detect the voltage data, and the communication module transmits the detected data to the host computer in real time via wireless signal transmission, completing one detection process. Because this detection device does not have a long-term fixed contact and connection between the cell busbar and the ground, it will not cause changes in the resistance of the electrolysis cell, will not affect the normal operation of the electrolysis cell, and the probability of being struck by lightning is also greatly reduced.

[0087] The embodiments of this utility model have been described in detail above. However, this utility model is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of this utility model.

Claims

1. A device for detecting the voltage to ground of the busbar of an aluminum electrolytic cell, characterized in that, Composed of the following components composition: The lid has at least four nylon posts mounted on it; The base plate is fixedly connected to the nylon column; A push-pull electromagnet is fixed to the first end of the top side of the base plate, and the push-pull electromagnet is provided with a movable guide rod; The contact plate is connected to one end of the movable guide rod; A conductive sheet has through holes at both ends. A conductive bolt passes through the conductive sheet and the contact plate in sequence, and is then connected to the conductive contact by a threaded connection. Two conductive spring sheets, the conductive spring sheets being L-shaped in general, are connected to the second end of the top side of the base plate by means of screws, and the positions of the two conductive spring sheets are adapted to the positions of the two conductive contacts; The main control board is fixedly connected to the base plate by bolts. The output end of the main control board is connected to the input end of the push-pull electromagnet and is used to control the push-pull electromagnet to be in a powered-on state or a powered-off state. Two high-voltage resistant wires are used. One end of one high-voltage resistant wire is electrically connected to a conductive spring sheet, and one end of the other high-voltage resistant wire is first electrically connected to the main control board. The main control board is electrically connected to another conductive spring sheet through the wire. The power cord extends to the outside of the box cover through a waterproof connector, and one end of the power cord is electrically connected to the main control board. The box body is connected to the box cover by screws. A sealing ring is provided between the box body and the box cover. The cavity formed by the box body and the box cover is filled with transformer oil that can completely soak the entire push-pull electromagnet and the two conductive contacts.

2. The device for detecting the bus-to-ground voltage of an aluminum electrolytic cell as described in claim 1, characterized in that, The main control board consists of a power supply module, a control module, a detection module, and a wireless communication module. The output terminal of the detection module is connected to the input terminal of the control module. The output terminal of the control module is connected to the input terminal of the push-pull electromagnet, and is used to control the push-pull electromagnet to be in a powered-on state or a powered-off state. The control module is interconnected with the wireless communication module. The power supply module is electrically connected to the control module, the detection module, and the wireless communication module, respectively.

3. The device for detecting the bus-to-ground voltage of an aluminum electrolytic cell as described in claim 2, characterized in that, The wireless communication module is one of the following: Bluetooth module, Wi-Fi module, ZigBee module, and 4G module.

4. The device for detecting the voltage to ground of the busbar of an aluminum electrolytic cell as described in claim 1, characterized in that, The base plate is fixedly connected to the nylon column by screws.

5. The device for detecting the bus-to-ground voltage of an aluminum electrolytic cell as described in claim 1, characterized in that, The conductive sheet is one of copper sheet, silver sheet, aluminum sheet, brass sheet, or nickel-chromium alloy sheet.

6. The device for detecting the bus-to-ground voltage of an aluminum electrolytic cell as described in claim 1, characterized in that, The conductive bolt is one of the following: copper bolt, silver bolt, aluminum bolt, brass bolt, or nickel-chromium alloy bolt.

7. The device for detecting the voltage to ground of the busbar of an aluminum electrolytic cell as described in claim 1, characterized in that, The conductive contact is one of the following: copper contact, silver contact, aluminum contact, brass contact, and nickel-chromium alloy contact.

8. The device for detecting the voltage to ground of the busbar of an aluminum electrolytic cell as described in claim 1, characterized in that, The conductive spring sheet is one of the following: copper spring sheet, silver spring sheet, aluminum spring sheet, brass spring sheet, or nickel-chromium alloy spring sheet.

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