Thermal balance control system, method, device and electronic equipment for electrolytic cell

Abstract

The application provides a heat balance control system, method and device of an electrolytic cell and electronic equipment, wherein the heat balance control system of the electrolytic cell comprises a liquid storage device, a water pump, a heat exchange device, a condenser and a negative pressure exhaust fan; the heat exchange device comprises an atomizing nozzle and a variable intake valve, and is arranged on a shell of the electrolytic cell; an outlet of the liquid storage device is connected with an inlet of the water pump, an outlet of the water pump is connected with an inlet of the atomizing nozzle, atomized liquid discharged from the atomizing nozzle is sprayed in the heat exchange device, the variable intake valve is through-connected with an inlet of the condenser, and an outlet of the condenser is through-connected with an inlet of the negative pressure exhaust fan. Thus, the latent heat of liquid vaporization can be used to dissipate heat of the shell of the electrolytic cell, and the heat dissipation capacity of the electrolytic cell is enhanced; in addition, the steam can be cooled through the condenser, and the unliquefied steam can be discharged through the negative pressure exhaust fan, so that the steam can be prevented from accumulating around the electrolytic cell, and the operation safety is improved.

Description

Technical Field

[0001] This application relates to the field of electrolytic cell technology, and in particular to a thermal balance control system, method, apparatus, electronic equipment and storage medium for an electrolytic cell. Background Technology

[0002] In related technologies, electrolytic cells have relatively weak heat dissipation capabilities. For example, the heat dissipation rate and volume of electrolytic cells are both small, which cannot meet the heat dissipation requirements of large electrolytic cells, easily leading to overheating problems inside the cells when production capacity is high. In addition, electrolytic cells also have the problem of low operational safety. Summary of the Invention

[0003] This application aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the first objective of this application is to provide a thermal balance control system for an electrolytic cell.

[0005] The second objective of this application is to propose a method for controlling the thermal balance of an electrolytic cell.

[0006] The third objective of this application is to provide a thermal balance control device for an electrolytic cell.

[0007] The fourth objective of this application is to propose an electronic device.

[0008] The fifth objective of this application is to provide a computer-readable storage medium.

[0009] The sixth objective of this application is to provide a computer program product.

[0010] To achieve the above objectives, a first aspect of this application provides a thermal balance control system for an electrolytic cell, comprising: a liquid storage device, a water pump, a heat exchange device, a condenser, and a negative pressure exhaust fan; wherein, the heat exchange device includes an atomizing nozzle and a variable air inlet valve, and the heat exchange device is arranged on the shell of the electrolytic cell; the outlet of the liquid storage device is connected to the inlet of the water pump, the outlet of the water pump is connected to the inlet of the atomizing nozzle, the atomized liquid discharged from the atomizing nozzle is sprayed into the interior of the heat exchange device, the variable air inlet valve is connected to the inlet of the condenser, and the vapor outlet of the condenser is connected to the inlet of the negative pressure exhaust fan.

[0011] To achieve the above objectives, a second aspect of this application provides a thermal balance control method for an electrolytic cell, applicable to the thermal balance control system of the electrolytic cell described in the first aspect of the embodiment. The method includes: in response to the electrolytic cell meeting a first set condition, opening an atomizing nozzle and opening a variable air intake valve; and adjusting at least one parameter of the spray volume of the atomizing nozzle and the opening degree of the variable air intake valve.

[0012] To achieve the above objectives, a third aspect of this application provides a thermal balance control device for an electrolytic cell, applicable to the thermal balance control system of the electrolytic cell described in the first aspect embodiment. The device includes: a control module for opening an atomizing nozzle and opening a variable air intake valve in response to the electrolytic cell meeting a first set condition; and an adjustment module for adjusting at least one parameter among the spray volume of the atomizing nozzle and the opening degree of the variable air intake valve.

[0013] To achieve the above objectives, a fourth aspect of this application provides an electronic device, including: a processor and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method described in the second aspect of the above embodiment.

[0014] To achieve the above objectives, a fifth aspect of this application provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, are used to implement the method described in the second aspect of the above application.

[0015] To achieve the above objectives, a sixth aspect of this application provides a computer program product including a computer program that, when executed by a processor, implements the method described in the second aspect of the above-described embodiment.

[0016] The thermal balance control system, method, apparatus, electronic equipment, and storage medium for electrolytic cells provided in this application include a water storage device, a water pump, a heat exchange device, a condenser, and a negative pressure exhaust fan. The thermal balance control system utilizes the latent heat of vaporization of the liquid to dissipate heat from the electrolytic cell shell, enhancing its heat dissipation capacity and meeting the heat dissipation requirements of large electrolytic cells. This prevents overheating within the cell during high-capacity production, thereby increasing the electrolytic cell's production capacity. Furthermore, the condenser cools the steam, and the negative pressure exhaust fan removes any unliquefied steam, preventing steam accumulation around the electrolytic cell and improving operational safety. This system is suitable for thermal balance control scenarios in prebaked anode aluminum electrolytic cells.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a thermal balance control system for an electrolytic cell provided in an embodiment of this application;

[0020] Figure 2 A schematic flowchart illustrating a heat balance control method for an electrolytic cell provided in an embodiment of this application;

[0021] Figure 3 A schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application;

[0022] Figure 4 A schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application;

[0023] Figure 5 This is a schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application.

[0024] Figure 6 A schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the structure of a thermal balance control device for an electrolytic cell provided in an embodiment of this application. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0027] In related technologies, electrolytic cells have relatively weak heat dissipation capabilities. For example, the heat dissipation rate and volume of electrolytic cells are both small, which cannot meet the heat dissipation requirements of large electrolytic cells. This can easily lead to overheating inside the cell when the production capacity is high, thus affecting the cell's production capacity. In addition, electrolytic cells also have the problem of low operational safety.

[0028] For example, taking aluminum electrolysis cells as an example, the current aluminum electrolysis industry generally adopts the prebaked anode electrolysis process. The aluminum electrolysis cell is connected to a DC power supply, and molten alumina is electrolyzed at high temperatures with a constant voltage and current to obtain primary aluminum metal. Currently, prebaked anode aluminum electrolysis cells all use natural cooling, dissipating heat through heat conduction, convection, and radiation between the electrolysis cell flue gas and the cell shell and the natural environment, achieving a thermal equilibrium state inside the electrolysis cell. However, in order to increase production and improve efficiency, aluminum electrolysis cells are still becoming larger, with 500kA (kiloamperes) large electrolysis cells already in operation. Natural cooling can no longer meet the heat dissipation requirements of large electrolysis cells. At the same time, to further utilize the existing capacity of small and medium-sized electrolysis cells, increasing current density is one of the main measures to increase production. However, natural cooling methods easily lead to overheating inside the cell under high current density, which is not conducive to achieving a thermal equilibrium state. Therefore, it is necessary to improve the heat dissipation method of the electrolysis cell and enhance its heat dissipation capacity.

[0029] Modern electrolytic aluminum production of primary aluminum employs the cryolite-alumina molten salt electrolysis method. Molten cryolite acts as the solvent, alumina as the solute, and carbon anodes and cathodes are used. Direct current is applied, and at 950-970℃, electrochemical reactions primarily occur at the electrodes within the electrolytic cell. As the reaction continues, the alumina and solid carbon anodes in the electrolyte melt are continuously consumed. Therefore, alumina and carbon anodes must be continuously added to the electrolyte melt to ensure continuous production. While cryolite, as the solvent, is theoretically not consumed, it undergoes volatilization and other mechanical losses at high temperatures, necessitating replenishment during electrolysis. In addition, a large amount of direct current is required to power the reaction process. The direct current energy consumption for aluminum is 13,000–15,000 kWh / t (kilowatt-hours per ton), while theoretically, primary aluminum production only requires 6,000 kWh / t of electricity.

[0030] Because the electrolyte has very low conductivity, the heat in the aluminum electrolysis cell is mainly generated in the electrolyte between the electrodes, accounting for about 75% of the total heat generation of the cell. Driven by the flow of electrolyte and molten aluminum, heat is transferred to the lining material or furnace sides via convection, and then through the heat conduction of the lining material to the upper, sides and bottom of the cell. Finally, the heat is dissipated to the external environment through the surface of the cell, thus achieving a macroscopic thermal equilibrium.

[0031] During normal production, the heat generated by the electrolytic cell equals the heat dissipated, maintaining a stable electrolysis temperature; that is, the electrolytic cell has established a normal thermal balance. If the heat generated by the electrolytic cell is greater than the heat dissipated, the electrolysis temperature will rise; conversely, if the heat generated is less than the heat dissipated, the electrolysis temperature will decrease. In modern aluminum electrolysis production, approximately 50% of the total energy input is lost to the environment as heat. Of this heat loss, 50% is lost from the top of the electrolytic cell, including 30% of the flue gas heat loss and heat loss from steel claws, busbars, and crusts; heat loss from the sides and bottom accounts for 35% and 7%, respectively.

[0032] To address the aforementioned issues, this application provides a thermal balance control system for an electrolytic cell, including a water storage device, a water pump, a heat exchange device, a condenser, and a negative pressure exhaust fan. This system utilizes the latent heat of vaporization of the liquid to dissipate heat from the electrolytic cell's shell, enhancing its heat dissipation capacity and meeting the heat dissipation requirements of large electrolytic cells. This prevents overheating within the cell during periods of high production capacity, thereby increasing the electrolytic cell's output. Furthermore, the condenser cools the steam, and the negative pressure exhaust fan removes any unliquefied steam, preventing steam accumulation around the electrolytic cell and improving operational safety. This system is suitable for thermal balance control scenarios in prebaked anode aluminum electrolytic cells.

[0033] Furthermore, this application embodiment also provides a thermal balance control method for an electrolytic cell. In response to the electrolytic cell meeting a first set condition, an atomizing nozzle is activated, and a variable air intake valve is opened. At least one parameter among the atomizing nozzle's spray volume and the variable air intake valve's opening degree is adjusted. Thus, when the electrolytic cell meets the first set condition, activating the atomizing nozzle and opening the variable air intake valve utilizes the latent heat of vaporization of the liquid to dissipate heat from the electrolytic cell's shell, enhancing the electrolytic cell's heat dissipation capacity. This meets the heat dissipation requirements of large electrolytic cells, preventing overheating during high-capacity production and thereby increasing the electrolytic cell's production capacity. Additionally, adjusting at least one parameter among the atomizing nozzle's spray volume and the variable air intake valve's opening degree allows for flexible adjustment of the electrolytic cell's heat dissipation capacity, meeting the heat dissipation needs of the electrolytic cell under different operating conditions. This improves the accuracy of temperature control and thermal balance control of the electrolytic cell and is applicable to thermal balance control scenarios for prebaked anode aluminum electrolytic cells.

[0034] In addition, the steam can be cooled by a condenser and the unliquefied steam can be discharged by a negative pressure exhaust fan, which can prevent the steam from accumulating around the electrolytic cell and improve operational safety.

[0035] The following description, with reference to the accompanying drawings, describes an embodiment of the electrolytic cell's thermal balance control system, method, apparatus, electronic device, and storage medium.

[0036] Figure 1 This is a schematic diagram of a thermal balance control system for an electrolytic cell provided in an embodiment of this application.

[0037] like Figure 1 As shown, the thermal balance control system 100 of the electrolytic cell includes a liquid storage device 1, a water pump 2, a heat exchange device 3, a condenser 8, and a negative pressure exhaust fan 9.

[0038] The heat exchanger 3 includes an atomizing nozzle 4 and a variable intake valve 5, and is arranged on the shell of the electrolytic cell 10.

[0039] The outlet of the liquid storage device 1 is connected to the inlet of the water pump 2, and the outlet of the water pump 2 is connected to the inlet of the atomizing nozzle 4. The atomized liquid discharged from the atomizing nozzle 4 is sprayed inside the heat exchange device 3. The variable air inlet valve 5 is connected to the inlet of the condenser 8, and the steam outlet of the condenser 8 is connected to the inlet of the negative pressure exhaust fan 9.

[0040] It should be noted that, Figure 1 The arrows in the diagram indicate the direction of vapor flow. Liquid storage device 1 is used to store liquids (such as water, refrigerant, liquefied air, liquefied carbon dioxide, etc.).

[0041] The liquid discharged from the storage device 1 enters the atomizing nozzle 4 through the water pump 2. The atomizing nozzle 4 can atomize the liquid. The atomized liquid discharged from the atomizing nozzle 4 is sprayed inside the heat exchange device 3 and absorbs heat from the air inside the heat exchange device 3. That is, the heat exchange device 3 can use the liquid to cool the air, thereby realizing heat dissipation of the electrolytic cell 10 and heating of the liquid with the air. The liquid absorbs heat and evaporates to form steam.

[0042] The steam discharged from the variable intake valve 5 enters the condenser 8 to release heat. Part of the released steam condenses into liquid, while the other part of the released steam (i.e., unliquefied steam) enters the negative pressure exhaust fan 9 through the steam outlet of the condenser 8, and is then discharged from the negative pressure exhaust fan 9, for example, to the outside.

[0043] Optionally, the liquid outlet of the condenser 8 is connected to the inlet of the liquid storage device 1, that is, the vapor after partial heat release is condensed into liquid, and then returned to the liquid storage device 1 through the liquid outlet of the condenser 8, so that the liquid can be recycled.

[0044] It is understandable that liquids have high specific heat capacity and good thermal conductivity, which can effectively absorb and conduct heat. In this solution, the latent heat of vaporization of the liquid can be used to dissipate heat from the shell of the electrolytic cell, thereby enhancing the heat dissipation capacity of the electrolytic cell. For example, increasing the heat dissipation rate and heat dissipation volume of the electrolytic cell can meet the heat dissipation requirements of large electrolytic cells, avoid overheating inside the cell when the production capacity is large, and thus improve the production capacity of the electrolytic cell.

[0045] In related technologies, the thickness of the furnace wall of the electrolytic cell is often reduced to enhance its heat dissipation capacity. However, if the furnace wall thickness is too small, the corrosion of the lining will be accelerated, and accidents such as perforation will easily occur. In this solution, there is no need to reduce the thickness of the furnace wall of the electrolytic cell, which helps to extend the life of the electrolytic cell.

[0046] Optionally, the liquid is water, which has a thermal conductivity of 0.6 W / (m·K), which is 20 times that of air, and also has a large latent heat of phase change, reaching 2257.2 kJ / kg (0.1 MPa, 100℃).

[0047] Optionally, the flue gas overflowing from the electrolytic cell 10 can enter the variable intake valve 5, then enter the condenser 8 to release heat and come into contact with the liquid inside the condenser 8. That is, the condenser 8 can use the liquid to purify the flue gas, thereby purifying the flue gas overflowing from the electrolytic cell, which is more environmentally friendly.

[0048] Optionally, such as Figure 1 As shown, there are multiple heat exchange devices 3.

[0049] Optionally, such as Figure 1 As shown, the heat exchanger 3 is arranged on the side shell of the electrolytic cell 10. For example, multiple heat exchangers 3 are arranged on both sides shell of the electrolytic cell 10.

[0050] Optionally, the heat balance control system 100 of the electrolytic cell further includes a first pipe, the first port of which is connected to the variable intake valve 5, and the second port of which is connected to the inlet of the condenser 8, that is, the variable intake valve 5 and the inlet of the condenser 8 are connected through the first pipe. It should be noted that the steam discharged from the variable intake valve 5 enters the condenser 8 through the first pipe to release heat.

[0051] Optionally, the first pipeline includes multiple branch pipelines and a main pipeline. The first port of each branch pipeline is connected to the variable intake valve 5, the second port of each branch pipeline is connected to the first port of the main pipeline, and the second port of the main pipeline is connected to the inlet of the condenser 8. Thus, the variable intake valve 5 and the inlet of the condenser 8 are connected through the branch pipelines and the main pipeline. It should be noted that the steam discharged from the variable intake valve 5 enters the condenser 8 to release heat through the branch pipelines and the main pipeline.

[0052] Optionally, the branch pipes are arranged at an angle to the horizontal direction, i.e., the branch pipes are arranged at an angle, which can prevent blockage and make them easier to clean.

[0053] For example, such as Figure 1As shown, the heat balance control system 100 of the electrolytic cell also includes a branch pipe 6 and a main pipe 7. The first port of the branch pipe 6 is connected to the variable intake valve 5, the second port of the branch pipe 6 is connected to the first port of the main pipe 7, and the second port of the main pipe 7 is connected to the inlet of the condenser 8. The branch pipe 6 is arranged at an angle to the horizontal direction.

[0054] It should be noted that, for the sake of simplicity, Figure 1 Only one branch pipe 6 is shown in the diagram. In actual scenarios, multiple branch pipes can be arranged. For example, taking the arrangement of two branch pipes as an example, the first set of heat exchange equipment 3 and branch pipe A are arranged on the first side shell of the electrolytic cell 10, and the second set of heat exchange equipment 3 and branch pipe B are arranged on the second side shell of the electrolytic cell 10. The first port of branch pipe A is connected to the variable intake valve 5 in the first set of heat exchange equipment 3, and the second port of branch pipe A is connected to the first port of the main pipe 7. The first port of branch pipe B is connected to the variable intake valve 5 in the second set of heat exchange equipment 3, and the second port of branch pipe B is connected to the first port of the main pipe 7. The second port of the main pipe 7 is connected to the inlet of the condenser 8.

[0055] Steam discharged from the variable intake valve 5 in the first heat exchanger 3 enters the condenser 8 to release heat through branch pipe A and main pipe 7. Steam discharged from the variable intake valve 5 in the second heat exchanger 3 enters the condenser 8 to release heat through branch pipe B and main pipe 7.

[0056] Optionally, the thermal balance control system 100 of the electrolytic cell further includes a second pipe, a third pipe, and a fourth pipe. The first port of the second pipe is connected to the outlet of the liquid storage device 1, and the second port of the second pipe is connected to the inlet of the water pump 2, meaning that the outlet of the liquid storage device 1 and the inlet of the water pump 2 are connected through the second pipe. The first port of the third pipe is connected to the outlet of the water pump 2, and the second port of the third pipe is connected to the first port of the fourth pipe. The second port of the fourth pipe is connected to the inlet of the atomizing nozzle 4, meaning that the water pump 2 and the atomizing nozzle 4 are connected through the third and fourth pipes. It should be noted that the liquid discharged from the liquid storage device 1 enters the water pump 2 through the second pipe, and the liquid discharged from the water pump 2 enters the atomizing nozzle 4 through the third and fourth pipes.

[0057] It should be noted that the electrolytic cell 10 is not limited in many ways, and may include aluminum electrolytic cells, chlor-alkali electrolytic cells, water electrolytic cells, etc. Among them, aluminum electrolytic cells include prebaked anode aluminum electrolytic cells.

[0058] In summary, the thermal balance control system for the electrolytic cell in this embodiment includes a water storage device, a water pump, a heat exchange device, a condenser, and a negative pressure exhaust fan. It utilizes the latent heat of vaporization of the liquid to dissipate heat from the electrolytic cell shell, enhancing its heat dissipation capacity. This meets the heat dissipation requirements of large electrolytic cells, preventing overheating during high-capacity production and thus increasing the cell's production capacity. Furthermore, the condenser cools the steam, and the negative pressure exhaust fan removes any unliquefied steam, preventing steam accumulation around the electrolytic cell and improving operational safety. This system is suitable for thermal balance control scenarios in prebaked anode aluminum electrolytic cells.

[0059] This application provides a method for controlling the thermal balance of an electrolytic cell. This method is applicable to the thermal balance control system for the electrolytic cell provided in the foregoing embodiments.

[0060] like Figure 2 As shown, the method may include the following steps:

[0061] S201, in response to the electrolytic cell meeting the first set condition, the atomizing nozzle is opened and the variable intake valve is opened.

[0062] It should be noted that the first condition is not subject to many restrictions.

[0063] Optionally, in response to the electrolytic cell meeting a first preset condition, including when the temperature of the electrolytic cell is greater than a third threshold, or when the temperature of the electrolytic cell is greater than the third threshold and the temperature change trend of the electrolytic cell is upward, it is determined that the electrolytic cell meets the first preset condition. It should be noted that the third threshold is not subject to excessive limitation. Therefore, when the temperature of the electrolytic cell is high, or when the temperature of the electrolytic cell is high and the temperature of the electrolytic cell is rising, the atomizing nozzle can be opened and the variable air intake valve can be opened, that is, the latent heat of vaporization of the liquid can be used to dissipate heat from the shell of the electrolytic cell, thereby enhancing the heat dissipation capacity of the electrolytic cell.

[0064] It should be noted that there are no strict restrictions on the specific methods for opening the atomizing nozzles and the variable intake valve.

[0065] Optionally, turning on the atomizing nozzle includes directly adjusting the spray volume of the atomizing nozzle from zero to a first set value to quickly enhance the heat dissipation capacity of the electrolytic cell, or gradually adjusting the spray volume of the atomizing nozzle from zero to the first set value, that is, gradually increasing the spray volume of the atomizing nozzle, which improves the smoothness of the spray volume adjustment of the atomizing nozzle and slowly enhances the heat dissipation capacity of the electrolytic cell.

[0066] Optionally, opening the variable intake valve includes directly adjusting the opening of the variable intake valve from zero to a second set value to quickly enhance the heat dissipation capacity of the electrolytic cell, or gradually adjusting the opening of the variable intake valve from zero to the second set value, that is, gradually increasing the opening of the variable intake valve, which improves the smoothness of the variable intake valve opening adjustment and slowly enhances the heat dissipation capacity of the electrolytic cell.

[0067] Optionally, the atomizing nozzle is turned on and the variable intake valve is opened, including in response to the temperature of the electrolytic cell being greater than a fourth threshold, and / or the temperature of the electrolytic cell being greater than a third threshold and the rate of temperature rise of the electrolytic cell being greater than a fifth threshold, the spray volume of the atomizing nozzle is directly adjusted from zero to a first set value, and the opening of the variable intake valve is directly adjusted from zero to a second set value.

[0068] Alternatively, in response to the temperature of the electrolytic cell being less than or equal to a fourth threshold and greater than a third threshold, and the rate of temperature rise of the electrolytic cell being less than or equal to a fifth threshold, the spray volume of the atomizing nozzle is gradually adjusted from zero to a first set value, and the opening of the variable intake valve is gradually adjusted from zero to a second set value.

[0069] It should be noted that the fourth threshold is greater than the third threshold, and no further restrictions are imposed on the fourth and fifth thresholds.

[0070] Therefore, when the temperature of the electrolytic cell is high and / or rises rapidly, requiring more heat dissipation, the spray volume of the atomizing nozzle can be directly adjusted from zero to a first set value, and the opening of the variable intake valve can be directly adjusted from zero to a second set value to quickly enhance the heat dissipation capacity of the electrolytic cell, thereby achieving rapid heat dissipation. Alternatively, when the temperature of the electrolytic cell is high but rises slowly, requiring less heat dissipation, the spray volume of the atomizing nozzle and the opening of the variable intake valve can be gradually increased to slowly enhance the heat dissipation capacity of the electrolytic cell, thereby achieving slow heat dissipation and avoiding excessive heat dissipation, thus meeting the heat dissipation requirements of the electrolytic cell under different operating conditions.

[0071] S202, adjusting at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening.

[0072] It is understandable that adjusting at least one parameter, such as the spray volume of the atomizing nozzle and the opening of the variable intake valve, can flexibly adjust the heat dissipation capacity of the electrolytic cell, for example, flexibly adjust the heat dissipation rate and heat dissipation volume of the electrolytic cell.

[0073] In the embodiments of this application, adjusting at least one parameter among the spray volume of the atomizing nozzle and the opening of the variable intake valve includes the following possible implementation methods:

[0074] Method 1: In response to an upward trend in the electrical power of the electrolytic cell and / or an upward trend in the temperature of the electrolytic cell, increase at least one parameter of the spray volume of the atomizing nozzle and the opening of the variable intake valve; or, in response to a downward trend in the electrical power of the electrolytic cell and a downward trend in the temperature of the electrolytic cell, decrease at least one parameter of the spray volume of the atomizing nozzle and the opening of the variable intake valve.

[0075] Therefore, when the electrical power and / or temperature of the electrolytic cell rise, at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening can be increased to enhance the heat dissipation capacity of the electrolytic cell, thereby achieving rapid heat dissipation. Alternatively, when the electrical power and temperature of the electrolytic cell decrease, at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening can be decreased to weaken the heat dissipation capacity of the electrolytic cell, thereby achieving slow heat dissipation and avoiding excessive heat dissipation.

[0076] Method 2: Obtain the difference between the temperature of the electrolytic cell and the set temperature, and based on the difference, adjust at least one parameter of the spray volume of the atomizing nozzle and the opening of the variable intake valve.

[0077] Therefore, taking into account the difference between the temperature of the electrolytic cell and the set temperature, at least one parameter among the spray volume of the atomizing nozzle and the opening of the variable intake valve can be adjusted to keep the temperature of the electrolytic cell within a certain temperature range.

[0078] Optionally, based on the difference, at least one of the parameters of the spray volume of the atomizing nozzle and the opening of the variable intake valve is adjusted, including increasing at least one of the parameters of the spray volume of the atomizing nozzle and the opening of the variable intake valve in response to the absolute value of the difference being greater than a sixth threshold and the temperature of the electrolytic cell being greater than a set temperature.

[0079] Alternatively, in response to the absolute value of the difference being greater than the sixth threshold and the temperature of the electrolytic cell being less than the set temperature, at least one of the parameters, namely the spray volume of the atomizing nozzle and the opening of the variable intake valve, is reduced.

[0080] Therefore, when the temperature of the electrolytic cell is higher than the set temperature and the difference between the two is significant, increasing at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening can enhance the heat dissipation capacity of the electrolytic cell, enabling rapid heat dissipation. Alternatively, when the temperature of the electrolytic cell is higher than the set temperature and the difference between the two is small, decreasing at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening can weaken the heat dissipation capacity of the electrolytic cell, thereby enabling slow heat dissipation and preventing excessive heat dissipation.

[0081] Optionally, the method further includes maintaining the spray volume of the atomizing nozzle and the opening of the variable intake valve in response to the absolute value of the difference being less than a sixth threshold. Thus, when the temperature of the electrolytic cell differs slightly from the set temperature, the spray volume of the atomizing nozzle and the opening of the variable intake valve can be maintained, thereby keeping the temperature of the electrolytic cell within a certain temperature range.

[0082] It should be noted that the sixth threshold is not subject to many restrictions; for example, it can be 3℃ (degrees Celsius).

[0083] Optionally, in response to the electrolytic cell meeting the first set condition, the method further includes reducing at least one of the following parameters: voltage, current, and anode cover material thickness. Therefore, reducing the voltage and / or current of the electrolytic cell can reduce heat generation, which helps to further lower the temperature of the electrolytic cell. Additionally, reducing the anode cover material thickness helps to enhance the heat dissipation capacity of the electrolytic cell.

[0084] Optionally, the voltage of the electrolytic cell can be reduced, including by reducing the electrode spacing. It should be noted that there is a seventh threshold for the electrode spacing of the electrolytic cell. If the electrode spacing is less than this threshold, it will cause strong secondary reactions and anode short circuits, affecting current efficiency and hindering production. In other words, the reduced electrode spacing should be greater than or equal to the seventh threshold.

[0085] In summary, the electrolytic cell heat balance control method according to the embodiments of this application, in response to the electrolytic cell meeting a first set condition, activates the atomizing nozzle and opens the variable air intake valve, adjusting at least one parameter among the atomizing nozzle's spray volume and the variable air intake valve's opening degree. Thus, when the electrolytic cell meets the first set condition, activating the atomizing nozzle and opening the variable air intake valve allows for heat dissipation of the electrolytic cell's shell using the latent heat of vaporization of the liquid, enhancing the electrolytic cell's heat dissipation capacity. This meets the heat dissipation requirements of large electrolytic cells, preventing overheating during high-capacity production and thereby increasing the electrolytic cell's production capacity. Furthermore, adjusting at least one parameter among the atomizing nozzle's spray volume and the variable air intake valve's opening degree allows for flexible adjustment of the electrolytic cell's heat dissipation capacity, meeting the heat dissipation requirements of the electrolytic cell under different operating conditions. This improves the accuracy of temperature control and heat balance control of the electrolytic cell, making it suitable for heat balance control scenarios in prebaked anode aluminum electrolytic cells.

[0086] In addition, the steam can be cooled by a condenser and the unliquefied steam can be discharged by a negative pressure exhaust fan, which can prevent the steam from accumulating around the electrolytic cell and improve operational safety.

[0087] In the above embodiments, regarding step S201, in response to the electrolytic cell meeting the first set condition, it can be combined with Figure 3 To understand further. Figure 3 This is a schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application. Figure 3As shown, the method may include the following steps:

[0088] S301, obtain the first moment when the electric power of the electrolytic cell begins to increase, wherein the first moment is after the current moment.

[0089] S302, in response to the time interval between the current time and the first time being less than the first threshold, it is determined that the electrolytic cell meets the first set condition.

[0090] S303, turn on the atomizing nozzle and open the variable intake valve.

[0091] S304, in response to the current moment reaching the first moment, increases the electrical power of the electrolytic cell.

[0092] It should be noted that the first moment refers to the moment after the current moment when the electrolytic cell's electrical power begins to increase; that is, the moment within a future time period when the electrolytic cell's electrical power most recently began to increase. No strict limitations are placed on the first threshold; for example, it could be 10 minutes.

[0093] In this embodiment, the atomizing nozzle can be turned on and the variable air intake valve can be opened in advance before the trigger power increases. That is, the latent heat of liquid vaporization can be used to dissipate heat from the shell of the electrolytic cell in advance, thereby enhancing the heat dissipation capacity of the electrolytic cell in advance before the trigger power increases.

[0094] Since the heat generation and heat transfer processes in the electrolytic cell lag behind electrical changes—that is, the increase in electrical power always outpaces the increase in electrolytic cell temperature—there is a first lag between the time when the electrolytic cell temperature rises and the time when the electrical power increases. In this scheme, the heat dissipation capacity of the electrolytic cell can be enhanced in advance, which can prolong the first lag time and avoid overheating in the electrolytic cell after the electrical power is increased. This allows the electrolytic cell to quickly reach thermal equilibrium after the electrical power is increased.

[0095] Optionally, electrolytic cells (such as aluminum electrolytic cells) consume a lot of electricity. During off-peak hours, the power output of the electrolytic cells can be increased, thereby increasing their capacity and reducing costs. Additionally, increasing off-peak electricity consumption can improve the utilization and absorption rate of intermittent renewable energy, enhancing the grid's demand-side response capabilities. Renewable energy, also known as green electricity, refers to electricity generated from renewable energy sources.

[0096] Optionally, activating the atomizing nozzle includes directly adjusting the spray volume of the atomizing nozzle from zero to a first set value, and opening the variable intake valve includes directly adjusting the opening degree of the variable intake valve from zero to a second set value. It is understood that when the electrical power of the electrolytic cell increases, the temperature of the electrolytic cell will rise rapidly. At this time, the electrolytic cell needs to dissipate a large amount of heat. Therefore, directly adjusting the spray volume of the atomizing nozzle from zero to the first set value and directly adjusting the opening degree of the variable intake valve from zero to the second set value can quickly enhance the heat dissipation capacity of the electrolytic cell, thereby achieving rapid heat dissipation of the electrolytic cell.

[0097] S305, adjusting at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening.

[0098] It should be noted that there are no strict restrictions on the execution order of steps S304 and S305. For example, steps S304 and S305 can be executed sequentially or in parallel.

[0099] For details regarding steps S303 and S305, please refer to the above embodiments; they will not be repeated here.

[0100] In summary, according to the thermal balance control method for the electrolytic cell in this application embodiment, the first moment when the electrical power of the electrolytic cell begins to increase is obtained, wherein the first moment is after the current moment. In response to the time interval between the current moment and the first moment being less than a first threshold, it is determined that the electrolytic cell meets a first set condition, the atomizing nozzle is opened, and the variable air intake valve is opened. In response to the current moment reaching the first moment, the electrical power of the electrolytic cell is increased. Therefore, the atomizing nozzle and the variable air intake valve can be opened in advance before the electrical power increase is triggered, that is, the latent heat of liquid vaporization can be used to dissipate heat from the shell of the electrolytic cell in advance. This enhances the heat dissipation capacity of the electrolytic cell before the electrical power increase is triggered, avoiding overheating inside the electrolytic cell after the electrical power is increased, and allowing the electrolytic cell to quickly reach thermal balance after the electrical power is increased.

[0101] In the above embodiments, regarding step S201, in response to the electrolytic cell meeting the first set condition, it can be combined with Figure 4 To understand further. Figure 4 This is a schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application. Figure 4 As shown, the method may include the following steps:

[0102] S401, in response to the rising trend of ambient temperature, it is determined that the electrolytic cell meets the first set condition.

[0103] S402, gradually adjusts the spray volume of the atomizing nozzle from zero to a first set value, and gradually adjusts the opening of the variable intake valve from zero to a second set value.

[0104] It is understandable that when the ambient temperature rises, the temperature of the electrolytic cell will rise. In this embodiment, when the ambient temperature rises, the atomizing nozzle can be turned on and the variable air intake valve can be opened. That is, the latent heat of liquid vaporization is used to dissipate heat from the shell of the electrolytic cell, thereby enhancing the heat dissipation capacity of the electrolytic cell and thus avoiding overheating of the electrolytic cell when the ambient temperature rises.

[0105] It is understandable that when the ambient temperature rises, the temperature of the electrolytic cell will rise slowly. At this time, the electrolytic cell needs to dissipate less heat, so the spray volume of the atomizing nozzle is gradually increased, and the opening of the variable intake valve is gradually increased to slowly enhance the heat dissipation capacity of the electrolytic cell, thereby achieving slow heat dissipation of the electrolytic cell and avoiding excessive heat dissipation of the electrolytic cell.

[0106] S403, adjusting at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening.

[0107] For details regarding steps S402-S403, please refer to the above embodiments, which will not be repeated here.

[0108] In summary, according to the thermal balance control method for the electrolytic cell according to the embodiments of this application, in response to an upward trend in ambient temperature, the electrolytic cell is determined to meet a first set condition. The spray volume of the atomizing nozzle is gradually adjusted from zero to a first set value, and the opening of the variable intake valve is gradually adjusted from zero to a second set value. Therefore, when the ambient temperature rises, the atomizing nozzle is opened and the variable intake valve is opened, utilizing the latent heat of vaporization of the liquid to dissipate heat from the electrolytic cell shell, preventing overheating of the electrolytic cell when the ambient temperature rises. Furthermore, gradually increasing the spray volume of the atomizing nozzle and gradually increasing the opening of the variable intake valve slowly enhances the heat dissipation capacity of the electrolytic cell, thereby achieving slow heat dissipation and preventing excessive heat dissipation.

[0109] Based on any of the above embodiments, the method further includes closing the atomizing nozzle and the variable air intake valve in response to the electrolytic cell meeting the second preset condition. Thus, when the electrolytic cell meets the second preset condition, the atomizing nozzle and the variable air intake valve can be closed, i.e., the latent heat of vaporization of the liquid is no longer used to dissipate heat from the electrolytic cell shell, thereby weakening the electrolytic cell's heat dissipation capacity.

[0110] It should be noted that no excessive restrictions are placed on the second condition.

[0111] Optionally, in response to the electrolyzer meeting a second preset condition, including in response to the electrolyzer temperature being less than an eighth threshold, or in response to the electrolyzer temperature being less than the eighth threshold and the temperature change trend of the electrolyzer being downward, it is determined that the electrolyzer meets the second preset condition. It should be noted that the eighth threshold is less than a third threshold, and no further limitations are imposed on the eighth threshold. Therefore, when the temperature of the electrolyzer is low, or when the temperature of the electrolyzer is low and the temperature of the electrolyzer is decreasing, the atomizing nozzle and the variable air intake valve can be closed, i.e., the use of the latent heat of vaporization of the liquid to dissipate heat from the electrolyzer shell can be stopped.

[0112] It should be noted that there are no specific restrictions on the methods for closing the atomizing nozzles and the variable intake valve.

[0113] Optionally, the atomizing nozzle can be turned off, including directly adjusting the spray volume of the atomizing nozzle to zero to quickly reduce the heat dissipation capacity of the electrolytic cell, or gradually adjusting the spray volume of the atomizing nozzle to zero, that is, gradually reducing the spray volume of the atomizing nozzle, which improves the smoothness of the spray volume adjustment of the atomizing nozzle and slowly reduces the heat dissipation capacity of the electrolytic cell.

[0114] Optionally, the variable intake valve can be closed, including directly adjusting the opening of the variable intake valve to zero to quickly reduce the heat dissipation capacity of the electrolytic cell, or gradually adjusting the opening of the variable intake valve to zero, that is, gradually reducing the opening of the variable intake valve, which improves the smoothness of the variable intake valve opening adjustment and slowly reduces the heat dissipation capacity of the electrolytic cell.

[0115] Optionally, the atomizing nozzle and the variable intake valve are closed, including in response to the temperature of the electrolytic cell being less than a ninth threshold, and / or the temperature of the electrolytic cell being less than an eighth threshold and the rate of temperature drop of the electrolytic cell being greater than a tenth threshold, the spray volume of the atomizing nozzle is directly adjusted to zero, and the opening of the variable intake valve is directly adjusted to zero.

[0116] Alternatively, in response to the temperature of the electrolytic cell being less than the eighth threshold and the rate of temperature decrease of the electrolytic cell being less than or equal to the tenth threshold, the spray volume of the atomizing nozzle is gradually adjusted to zero, and the opening of the variable intake valve is gradually adjusted to zero.

[0117] It should be noted that the ninth threshold is less than the eighth threshold, and no further restrictions are imposed on the ninth and tenth thresholds.

[0118] Therefore, when the temperature of the electrolytic cell is low and / or the temperature of the electrolytic cell drops rapidly, and the electrolytic cell needs to be kept warm, the spray volume of the atomizing nozzle and the opening of the variable intake valve can be directly adjusted to zero to quickly reduce the heat dissipation capacity of the electrolytic cell and avoid the electrolytic cell temperature from becoming too low. Alternatively, when the temperature of the electrolytic cell is low and the temperature drops slowly, and the electrolytic cell needs to dissipate less heat, the spray volume of the atomizing nozzle and the opening of the variable intake valve can be gradually reduced to slowly reduce the heat dissipation capacity of the electrolytic cell, thereby achieving slow heat dissipation of the electrolytic cell and meeting the heat dissipation requirements of the electrolytic cell under different operating conditions.

[0119] Optionally, in response to the electrolytic cell meeting the second set condition, the method further includes increasing at least one of the following parameters: voltage, current, anode cover material thickness, and airflow of the negative pressure exhaust fan. Increasing the voltage and / or current of the electrolytic cell increases its heat generation, which helps to further raise its temperature. Reducing the anode cover material thickness helps weaken the electrolytic cell's heat dissipation capacity, thus preventing excessive heat dissipation. Increasing the airflow of the negative pressure exhaust fan helps create a negative pressure environment with a certain degree of vacuum in the heat exchange equipment, significantly reducing the convective heat transfer process and creating resistance to prevent heat dissipation from the electrolytic cell. This helps to weaken the electrolytic cell's heat dissipation capacity; for example, if the heat exchange equipment is arranged on the side shell of the electrolytic cell, it can prevent heat from escaping from the side shell.

[0120] Optionally, the voltage of the electrolytic cell can be increased, including by increasing the electrode spacing of the electrolytic cell.

[0121] In the above embodiments, regarding the response of the electrolytic cell to meet the second preset condition, it can be combined with Figure 5 To understand further. Figure 5 This is a schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application. Figure 5 As shown, the method may include the following steps:

[0122] S501, obtain the second moment when the electric power of the electrolytic cell begins to decrease, wherein the second moment is after the current moment.

[0123] S502, in response to the time interval between the current time and the second time being less than the second threshold, it is determined that the electrolytic cell meets the second set condition.

[0124] S503, close the atomizing nozzles and variable intake valves.

[0125] S504, in response to the arrival of the second time step at the current time step, reduces the electrical power of the electrolytic cell.

[0126] It should be noted that the second moment refers to the moment after the current moment when the electrolytic cell's power begins to decrease; that is, the moment within a future time period when the electrolytic cell's power begins to decrease most recently. No strict limitations are placed on the second threshold; for example, it could be 10 minutes.

[0127] In this embodiment, the atomizing nozzle and variable air intake valve can be closed in advance before the trigger power decreases, that is, the heat dissipation of the electrolytic cell shell using the latent heat of liquid vaporization can be stopped in advance, thereby weakening the heat dissipation capacity of the electrolytic cell in advance before the trigger power decreases.

[0128] Since the heat dissipation and heat transfer processes of the electrolytic cell lag behind the electrical change, i.e., the decrease in electrical power always outpaces the decrease in electrolytic cell temperature, there is a second lag between the moment the electrolytic cell temperature decreases and the moment the electrical power decreases. In this scheme, the heat dissipation capacity of the electrolytic cell can be weakened in advance, which can prolong the second lag. This can prevent the electrolytic cell from becoming too cold after the electrical power is reduced, allowing the electrolytic cell to quickly reach thermal equilibrium after the electrical power is reduced.

[0129] Optionally, the atomizing nozzle can be shut off, including adjusting the spray volume of the atomizing nozzle directly to zero, and the variable intake valve can be shut off, including adjusting the opening of the variable intake valve directly to zero. It is understood that when the electrical power of the electrolytic cell decreases, the temperature of the electrolytic cell will drop rapidly. In this case, the electrolytic cell needs to be kept warm. Therefore, adjusting the spray volume of the atomizing nozzle directly to zero and the opening of the variable intake valve directly to zero quickly reduces the heat dissipation capacity of the electrolytic cell, thus preventing the electrolytic cell temperature from becoming too low.

[0130] In summary, according to the thermal balance control method for the electrolytic cell according to the embodiments of this application, a second moment when the electrical power of the electrolytic cell begins to decrease is obtained, wherein the second moment is after the current moment. In response to the time interval between the current moment and the second moment being less than a second threshold, it is determined that the electrolytic cell meets a second set condition, and the atomizing nozzle and variable air intake valve are closed. In response to the current moment reaching the second moment, the electrical power of the electrolytic cell is reduced. Therefore, the atomizing nozzle and variable air intake valve can be closed in advance before the electrical power decrease is triggered, i.e., the heat dissipation of the electrolytic cell shell using the latent heat of liquid vaporization is stopped in advance. This weakens the heat dissipation capacity of the electrolytic cell before the electrical power decrease is triggered, avoiding overcooling of the cell after the electrical power decrease, and allowing the electrolytic cell to quickly reach thermal balance after the electrical power decrease.

[0131] In the above embodiments, regarding the response of the electrolytic cell to meet the second preset condition, it can be combined with Figure 6 To understand further. Figure 6 This is a schematic flowchart illustrating another method for controlling the heat balance of an electrolytic cell provided in an embodiment of this application. Figure 6 As shown, the method may include the following steps:

[0132] S601, in response to the decreasing trend of ambient temperature, it is determined that the electrolytic cell meets the second set condition.

[0133] S602 gradually adjusts the spray volume of the atomizing nozzle to zero and gradually adjusts the opening of the variable intake valve to zero.

[0134] It is understandable that when the ambient temperature drops, the temperature of the electrolytic cell will drop. In this embodiment, when the ambient temperature drops, the atomizing nozzle and the variable air intake valve can be closed, that is, the latent heat of vaporization of the liquid can be stopped to dissipate heat from the shell of the electrolytic cell, thereby weakening the heat dissipation capacity of the electrolytic cell and thus avoiding the situation where the electrolytic cell becomes too cold when the ambient temperature drops.

[0135] It is understandable that when the ambient temperature drops, the temperature of the electrolytic cell will drop slowly. At this time, the electrolytic cell needs to dissipate less heat, so the spray volume of the atomizing nozzle is gradually reduced, and the opening of the variable intake valve is gradually reduced, so as to slowly weaken the heat dissipation capacity of the electrolytic cell, thereby achieving slow heat dissipation of the electrolytic cell and avoiding excessive heat dissipation of the electrolytic cell.

[0136] For details regarding step S602, please refer to the above embodiments, which will not be repeated here.

[0137] In summary, according to the thermal balance control method of the electrolytic cell according to the embodiments of this application, in response to the decreasing trend of the ambient temperature, it is determined that the electrolytic cell meets the second preset condition. The spray volume of the atomizing nozzle is gradually adjusted to zero, and the opening of the variable intake valve is gradually adjusted to zero. Therefore, when the ambient temperature decreases, the atomizing nozzle and the variable intake valve can be closed, i.e., the latent heat of vaporization of the liquid can be stopped from dissipating heat from the electrolytic cell shell, avoiding overcooling of the electrolytic cell when the ambient temperature decreases. Furthermore, by gradually reducing the spray volume of the atomizing nozzle and the opening of the variable intake valve, the heat dissipation capacity of the electrolytic cell is slowly weakened, thereby achieving slow heat dissipation of the electrolytic cell and avoiding excessive heat dissipation.

[0138] For ease of understanding, an exemplary embodiment is provided:

[0139] Scene 1:

[0140] Electrolytic aluminum is a major electricity consumer, and electricity prices directly affect its cost. During off-peak hours, the voltage and current of the electrolytic cell can be increased to boost power consumption and increase output. This also increases the utilization rate of intermittent photovoltaic power generation, improving the green energy consumption rate. However, increasing the power of a single cell inevitably leads to a rise in temperature, potentially causing overheating. Furthermore, since heat generation and transfer lag behind electrical changes, the increase in voltage and current always outpaces the temperature rise. Therefore, to ensure the aluminum electrolytic cell quickly reaches thermal equilibrium under increased power, a water atomization spraying system can be implemented before the power increase, based on the known lag time. This pre-cools the cell shell, increases heat transfer speed, and allows for precise control of the water atomization rate to manage temperature fluctuations. For example, initial pre-cooling with a very small amount of atomized spraying can be used, and as power increases, the atomization rate can be gradually increased to enhance heat dissipation. Simultaneously, this process can be combined with reducing the thickness of the anode covering material to increase heat loss at the top of the aluminum electrolysis cell, further enhancing heat dissipation capacity. This water atomization spray cooling process can also control the furnace wall thickness, protect the furnace chamber, and increase the lifespan of the electrolysis cell.

[0141] The higher the electrical power, the higher the temperature inside the electrolytic cell. To control the temperature within a certain range, under normal conditions without considering water spray, the air intake can be controlled by adjusting the opening angle of the variable valve to achieve heat dissipation. A larger opening angle results in a larger air intake, greater heat dissipation, and faster heat dissipation. When the valve is completely closed and the fan is at its maximum speed, a relative vacuum negative pressure is created, which isolates heat dissipation, i.e., it serves as insulation. Considering water spray, since the maximum exhaust volume of the fan is fixed, to ensure stable system gas pressure, and in extreme heat dissipation conditions, where water vaporization causes significant volume expansion during water spray, the opening angle of the variable valve should be reduced to decrease the partial pressure of the air and increase the proportion of water vapor, thereby increasing heat dissipation.

[0142] Scene 2:

[0143] For aluminum electrolytic cells to operate normally, a certain high temperature needs to be maintained inside the cell. When the electrical power suddenly decreases, and the heat generated by the electrolytic cell is less than the heat dissipated, the cell will gradually cool down, a phenomenon known in production as a "cold cell." To maintain the temperature of the aluminum electrolytic cell and reduce side heat loss, the atomizing nozzles and variable air inlet valves can be closed, while simultaneously increasing the airflow of the negative pressure exhaust fan. This creates a negative pressure environment with a certain degree of vacuum in the heat exchange equipment, significantly weakening the convective heat transfer process and generating resistance to prevent heat from escaping from the sides of the cell. Additionally, the cell voltage can be appropriately increased, the electrolyte level increased, and alumina added to increase the thickness of the anode covering material, thereby increasing the heat generated by the cell, reducing heat dissipation, and gradually restoring the cell temperature to normal.

[0144] Scene 3:

[0145] If the cooling of the electrolytic cell is due to climatic factors, with the ambient temperature gradually decreasing, it is a slow process. In this case, the electrolytic cell needs to be kept warm to save energy, which can be achieved by slowly adjusting and closing the variable intake valve.

[0146] Scene 4:

[0147] If the heating is due to climate factors, with the ambient temperature gradually rising, the electrolytic cell heats up slowly. In this case, the electrolytic cell needs to dissipate heat, so the intake valve can be adjusted to gradually increase its opening.

[0148] To achieve the above embodiments, this application also proposes a thermal balance control device for an electrolytic cell. This device is applicable to the thermal balance control system for the electrolytic cell provided in the foregoing embodiments.

[0149] Figure 7 This is a schematic diagram of the structure of a thermal balance control device for an electrolytic cell provided in an embodiment of this application.

[0150] like Figure 7 As shown, the thermal balance control device 200 of the electrolytic cell includes a control module 210 and an adjustment module 220.

[0151] The control module 210 is used to activate the atomizing nozzle and open the variable air intake valve in response to the electrolytic cell meeting the first set condition.

[0152] The adjustment module 220 is used to adjust at least one parameter of the spray volume of the atomizing nozzle and the opening of the variable intake valve.

[0153] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: obtain a first moment when the electrical power of the electrolytic cell begins to increase, wherein the first moment is after the current moment; and determine that the electrolytic cell meets the first set condition in response to the time interval between the current moment and the first moment being less than a first threshold.

[0154] Furthermore, in one possible implementation of this application embodiment, after the atomizing nozzle is turned on and the variable intake valve is opened, the control module 210 is further configured to: increase the electrical power of the electrolytic cell in response to the current time reaching the first time.

[0155] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: determine that the electrolytic cell meets the first set condition in response to an upward trend in the ambient temperature.

[0156] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: gradually adjust the spray volume of the atomizing nozzle from zero to a first set value; and gradually adjust the opening of the variable intake valve from zero to a second set value.

[0157] Furthermore, in one possible implementation of this application embodiment, after the electrolytic cell meets the first set condition, the control module 210 is further configured to: reduce at least one parameter among the voltage, current and anode cover material thickness of the electrolytic cell.

[0158] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: close the atomizing nozzle and the variable air intake valve in response to the electrolytic cell meeting the second set condition.

[0159] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: obtain a second moment when the electrical power of the electrolytic cell begins to decrease, wherein the second moment is after the current moment; and determine that the electrolytic cell meets the second set condition in response to the time interval between the current moment and the second moment being less than a second threshold.

[0160] Furthermore, in one possible implementation of this application embodiment, after closing the atomizing nozzle and the variable intake valve, the control module 210 is further configured to: reduce the electrical power of the electrolytic cell in response to the current time reaching the second time.

[0161] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: determine that the electrolytic cell meets the second set condition in response to a decreasing trend in ambient temperature.

[0162] Furthermore, in one possible implementation of this application embodiment, the control module 210 is further configured to: gradually adjust the spray volume of the atomizing nozzle to zero; and gradually adjust the opening of the variable intake valve to zero.

[0163] Furthermore, in one possible implementation of this application embodiment, after the electrolytic cell meets the second set condition, the control module 210 is further configured to: increase at least one of the following parameters of the electrolytic cell: voltage, current, anode cover material thickness, and air volume of the negative pressure exhaust fan.

[0164] It should be noted that the foregoing explanation of the embodiment of the heat balance control method for the electrolytic cell also applies to the heat balance control device of the electrolytic cell in this embodiment, and will not be repeated here.

[0165] In summary, the thermal balance control device for the electrolytic cell in this embodiment of the application, in response to the electrolytic cell meeting a first set condition, activates the atomizing nozzle and opens the variable air intake valve, adjusting at least one parameter among the spray volume of the atomizing nozzle and the opening degree of the variable air intake valve. Thus, when the electrolytic cell meets the first set condition, activating the atomizing nozzle and opening the variable air intake valve utilizes the latent heat of vaporization of the liquid to dissipate heat from the electrolytic cell shell, enhancing the electrolytic cell's heat dissipation capacity. This meets the heat dissipation requirements of large electrolytic cells, preventing overheating during high-capacity production and thereby increasing the electrolytic cell's production capacity. Furthermore, adjusting at least one parameter among the spray volume of the atomizing nozzle and the opening degree of the variable air intake valve allows for flexible adjustment of the electrolytic cell's heat dissipation capacity, meeting the heat dissipation requirements of the electrolytic cell under different operating conditions. This improves the accuracy of temperature control and thermal balance control of the electrolytic cell, making it suitable for thermal balance control scenarios in prebaked anode aluminum electrolytic cells.

[0166] In addition, the steam can be cooled by a condenser and the unliquefied steam can be discharged by a negative pressure exhaust fan, which can prevent the steam from accumulating around the electrolytic cell and improve operational safety.

[0167] To implement the above embodiments, this application also proposes an electronic device, including: a processor and a memory communicatively connected to the processor; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to implement the thermal balance control method for the electrolytic cell provided in the foregoing embodiments.

[0168] To implement the above embodiments, this application also proposes a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the thermal balance control method for the electrolytic cell provided in the foregoing embodiments.

[0169] To implement the above embodiments, this application also proposes a computer program product, including a computer program that, when executed by a processor, implements the thermal balance control method for the electrolytic cell provided in the foregoing embodiments.

[0170] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in this application comply with relevant laws and regulations and do not violate public order and good morals.

[0171] It should be noted that personal information collected from users should be used for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. Furthermore, such collection / sharing should only be conducted after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign an agreement / authorization that includes authorization of relevant user information before the user uses the function. In addition, any necessary steps must be taken to protect and safeguard access to such personal information data and ensure that others with access to personal information data comply with their privacy policies and procedures.

[0172] This application is intended to provide an implementation scheme for users to selectively prevent the use or access to their personal information data. Specifically, this disclosure is intended to provide hardware and / or software to prevent or block access to such personal information data. Once personal information data is no longer needed, risks can be minimized by restricting data collection and deleting data. Furthermore, where applicable, such personal information is de-identified to protect user privacy.

[0173] In the foregoing descriptions of the embodiments, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0174] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as controlling or implying relative importance or implicitly specifying the number of technical features controlled. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0175] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0176] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0177] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0178] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0179] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0180] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A thermal balance control system for an electrolytic cell, characterized in that, include: Liquid storage equipment, water pumps, heat exchange equipment, condensers, and negative pressure exhaust fans; among them, The heat exchange device includes an atomizing nozzle and a variable air inlet valve, and the heat exchange device is arranged on the shell of the electrolytic cell; The outlet of the liquid storage device is connected to the inlet of the water pump, the outlet of the water pump is connected to the inlet of the atomizing nozzle, and the atomized liquid discharged from the atomizing nozzle is sprayed into the interior of the heat exchange device. The variable air inlet valve is connected to the inlet of the condenser, and the steam outlet of the condenser is connected to the inlet of the negative pressure exhaust fan.

2. The system according to claim 1, characterized in that, Also includes: A first pipe, the first port of which is connected to the variable intake valve, and the second port of which is connected to the inlet of the condenser.

3. The system according to claim 2, characterized in that, The first pipeline includes multiple branch pipelines and a main pipeline. The first port of the branch pipeline is connected to the variable intake valve, the second port of the branch pipeline is connected to the first port of the main pipeline, and the second port of the main pipeline is connected to the inlet of the condenser.

4. The system according to claim 3, characterized in that, The branch pipes are arranged at an angle to the horizontal direction.

5. The system according to any one of claims 1-4, characterized in that, The heat exchange equipment is arranged on the side shell of the electrolytic cell.

6. A method for controlling the heat balance of an electrolytic cell, characterized in that, The method, applicable to the thermal balance control system of the electrolytic cell as described in any one of claims 1-5, comprises: In response to the electrolytic cell meeting the first set condition, the atomizing nozzle is turned on and the variable air intake valve is opened; Adjust at least one parameter of the atomizing nozzle spray volume and the variable intake valve opening.

7. The method according to claim 6, characterized in that, The response to the electrolyzer satisfying a first preset condition includes: The first moment when the electrical power of the electrolytic cell begins to increase is obtained, wherein the first moment is after the current moment; In response to the time interval between the current time and the first time being less than a first threshold, it is determined that the electrolytic cell meets the first set condition.

8. The method according to claim 7, characterized in that, After opening the atomizing nozzle and opening the variable intake valve, the method further includes: In response to the arrival of the first time at the current time, the electrical power of the electrolytic cell is increased.

9. The method according to claim 6, characterized in that, The response to the electrolyzer satisfying a first preset condition includes: In response to the increasing trend of ambient temperature, it is determined that the electrolytic cell meets the first set condition.

10. The method according to claim 9, characterized in that, The process of opening the atomizing nozzle includes: The spray volume of the atomizing nozzle is gradually adjusted from zero to a first set value; The opening of the variable intake valve includes: The opening of the variable intake valve is gradually adjusted from zero to the second set value.

11. The method according to claim 6, characterized in that, The response after the electrolyzer meets the first preset condition further includes: Reduce at least one of the following parameters of the electrolytic cell: voltage, current, and anode cover thickness.

12. The method according to any one of claims 6-11, characterized in that, The method further includes: In response to the electrolytic cell meeting the second preset condition, the atomizing nozzle and the variable air intake valve are closed.

13. The method according to claim 12, characterized in that, The response to the electrolyzer satisfying the second preset condition includes: The second moment when the electrical power of the electrolytic cell begins to decrease is obtained, wherein the second moment is after the current moment; In response to the time interval between the current time and the second time being less than a second threshold, it is determined that the electrolytic cell meets the second set condition.

14. The method according to claim 13, characterized in that, After closing the atomizing nozzle and the variable intake valve, the method further includes: In response to the arrival of the second time at the current time, the electrical power of the electrolytic cell is reduced.

15. The method according to claim 12, characterized in that, The response to the electrolyzer satisfying the second preset condition includes: In response to the decreasing trend of ambient temperature, the electrolytic cell is determined to meet the second set condition.

16. The method according to claim 15, characterized in that, Closing the atomizing nozzle includes: The spray volume of the atomizing nozzle is gradually adjusted to zero; Closing the variable intake valve includes: The opening of the variable intake valve is gradually adjusted to zero.

17. The method according to claim 12, characterized in that, The response after the electrolytic cell meets the second preset condition further includes: Increase at least one of the following parameters: voltage, current, anode cover material thickness, and air volume of the negative pressure exhaust fan.

18. A thermal balance control device for an electrolytic cell, characterized in that, A thermal balance control system for an electrolytic cell as described in any one of claims 1-5, the device comprising: The control module is used to activate the atomizing nozzle and open the variable air intake valve in response to the electrolytic cell meeting the first set condition. An adjustment module is used to adjust at least one parameter of the spray volume of the atomizing nozzle and the opening of the variable intake valve.

19. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 6-17.

20. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 6-17.

21. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method as described in any one of claims 6-17.

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