Electrochemical tank refilling method, electrochemical tank device, equipment and storage medium

Abstract

The present invention belongs to the technical field of equipment control, and specifically discloses an electrochemical tank refilling method, an electrochemical tank device, equipment and a storage medium, wherein the electrochemical tank refilling method includes obtaining the amount of solution and pH value in the tank body after the reaction, determining the total replenishment amount of the electrochemical solution and the dilution solution respectively, determining the total amount of the second intermediate replenishment solution according to the comparison result of the actual intermediate pH value and the preset intermediate pH value, and controlling the refilling unit to refill and stir to reach the target pH value. The present invention detects the ion concentration in the tank body to achieve automatic refilling, sets an intermediate concentration gradient during the refilling process, and ensures that the replenishing solution can reach the corresponding ion concentration when the set amount is reached. At the same time, through the electrochemical tank refilling equipment set, the solution added to the tank body can be mixed evenly with the original solution in the tank body, effectively avoiding the situation of uneven local ion concentration inside the tank body, and improving product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment system control, and in particular to an electrochemical tank refilling method, an electrochemical tank device, equipment and a storage medium. Background Art

[0002] In the electrochemical industry, as production progresses, the electrochemical liquid will undergo certain changes. Due to the consumption of ions in the electrochemical liquid, the required solution needs to be supplemented in the electrochemical cell to meet the amount of ions and solution required in the next batch of production. The existing solution is replenished into the electrochemical cell through a manual ratio-controlled replenishment mechanism. However, when the solution is added manually, the ratio of the electrochemical liquid and the dilution solution cannot be accurately controlled, resulting in too much or too little solution, which requires constant adjustments, wasting a lot of time and affecting subsequent production. In addition, after the traditional replenishment mechanism adds new solution, there will be local uneven ion concentration, which can easily affect the production quality. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an electrochemical cell refilling method, an electrochemical cell device, equipment and a storage medium, which are used to solve the problem in the prior art that the amount of solution in the electrochemical cell cannot be accurately controlled by artificial refilling.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a method for replenishing an electrochemical cell, comprising:

[0005] Obtaining a current solution volume and a current pH value of the solution in the electrochemical tank, and determining the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical tank respectively based on the current solution volume, the current pH value, and a preset target solution volume and target pH value;

[0006] Based on the current solution volume and the target solution volume, determining a first intermediate replenishing solution total amount that satisfies a preset intermediate pH value between the current solution volume and the target solution volume, and controlling the liquid replenishing unit to replenish the liquid, wherein the preset intermediate pH value is between the current pH value and the target pH value;

[0007] During the rehydration process, the solution in the electrochemical tank is stirred, and an actual preset intermediate pH value is obtained after the stirring is performed for a preset time;

[0008] Comparing the preset intermediate pH value with the actual preset intermediate pH value, and determining the total amount of the second intermediate replenishment solution required to reach the target pH value according to the total replenishment amount and the comparison result, and controlling the replenishment of the liquid replenishment unit;

[0009] During the rehydration process, the solution in the electrochemical tank is stirred so that the solution in the electrochemical tank reaches the target solution volume and the target pH value.

[0010] Optionally, the determining the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical tank respectively comprises:

[0011] Compare the current solution volume with the target solution volume to obtain the total amount of supplementary solution required;

[0012] Compare the current pH value with the target pH value to determine the concentration difference between the current ion concentration and the target ion concentration;

[0013] Determining the total replenishment amount of the electrochemical solution according to the concentration difference;

[0014] The total replenishment amount of the dilution solution is determined according to the total replenishment amount of the electrochemical solution and the total amount of replenishment solution required.

[0015] Optionally, after obtaining the required total amount of replenishing solution, the method further comprises:

[0016] Determine the actual sediment volume based on the electrochemical reaction;

[0017] Determine a first liquid level value in the current electrochemical tank according to the current solution amount and the actual sediment volume;

[0018] Obtaining a second liquid level value in the electrochemical tank after the filtration cycle, and determining the volume of the sediment in the electrochemical tank according to the second liquid level value and the first liquid level value;

[0019] If the total amount of the required supplementary solution is less than the preset maximum liquid level after it is added, a liquid replenishment operation is performed;

[0020] If the total amount of the required supplementary solution added is greater than the preset maximum liquid level, the filtration cycle is performed again.

[0021] Optionally, the method for determining the total amount of the first intermediate supplementary solution that satisfies a preset intermediate pH value between the current solution amount and the target solution amount includes:

[0022] Establishing one or more preset intermediate pH values ​​between the current pH value and the target pH value and determining the intermediate ion concentration according to the preset intermediate pH values;

[0023] Calculating an ion concentration difference according to a current pH value and a preset intermediate pH value, and determining a first intermediate replenishment amount of the electrochemical liquid according to the ion concentration difference;

[0024] determining a first intermediate replenishment amount of the dilution solution based on the first intermediate replenishment amount of the electrochemical solution and a proportional relationship between the total replenishment amounts of the electrochemical solution and the dilution solution;

[0025] The total amount of the first intermediate replenishment solution is determined based on the first intermediate replenishment amount of the electrochemical solution and the first intermediate replenishment amount of the dilution solution.

[0026] Optionally, the method for determining the total amount of the second intermediate replenishment solution required to reach the target pH value according to the total replenishment amount and the comparison result includes:

[0027] Determining an intermediate ion concentration after adding the total amount of the first intermediate supplement solution according to a preset intermediate pH value, and determining an intermediate concentration difference between the intermediate ion concentration and the target ion concentration;

[0028] determining a second intermediate replenishment amount of the electrochemical liquid according to the intermediate concentration difference;

[0029] determining a second intermediate replenishment amount of the dilution solution based on the total replenishment amount, the total amount of the first intermediate replenishment solution, and the second intermediate replenishment amount of the electrochemical solution;

[0030] The second intermediate replenishment solution total amount is determined according to the second intermediate replenishment amount of the electrochemical solution and the second intermediate replenishment amount of the dilution solution.

[0031] The present invention also provides an electrochemical cell, which uses the above-mentioned electrochemical cell refilling method, comprising:

[0032] A tank body, wherein an air blowing pipe is provided at the bottom of the tank body, the air blowing pipe comprises an outer layer tube and an inner layer tube, the outer layer tube is provided with a first air guide block, and the inner layer tube is provided with a plurality of second air guide blocks;

[0033] A fluid replenishment mechanism, the fluid replenishment mechanism comprising a fluid replenishment tank and a fluid guide assembly, the fluid replenishment tank being used to replenish solution into the tank body, the fluid guide assembly being arranged on one side of the tank body close to the fluid replenishment tank, and the fluid guide assembly being used to disperse the replenishment solution into the electrochemical tank;

[0034] The filtering circulation mechanism is arranged outside the tank body, and the input end of the filtering circulation mechanism is communicated with the inside of the tank body, and is used for filtering the solution in the tank body and re-entering the tank body.

[0035] Optionally, the liquid guiding assembly includes a liquid guiding plate and a liquid guiding block, the liquid guiding plate extending horizontally along the inner wall of the trough body, the liquid guiding block being arranged between the inner wall of the trough body and the liquid guiding plate, the liquid guiding block being provided with a liquid guiding groove extending along the length direction of the liquid guiding plate, a connecting groove being provided at the bottom of the liquid guiding block, a plurality of liquid guiding holes being opened on the liquid guiding groove, and the liquid guiding holes passing through the liquid guiding block to be connected with the connecting groove.

[0036] Optionally, the liquid guide plate includes a first guide portion and a second guide portion, the second guide portion is integrally arranged with the first guide portion and the second guide portion is inclined with respect to the first guide portion, the angle between the second guide portion and the horizontal direction is greater than the angle between the first guide portion and the horizontal direction, the first guide portion is provided with a first guide groove connected to the connecting groove, and the second guide portion is provided with a second guide groove connected to the first guide groove.

[0037] The present invention also provides a device, comprising:

[0038] one or more processors and memory,

[0039] The memory stores a computer program, and when the one or more processors execute the computer program, the device executes the above method.

[0040] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by one or more processors, enables a device to execute the above method.

[0041] As described above, the electrochemical tank refilling method proposed by the present invention has the following beneficial effects:

[0042] (1) Compared with the prior art, the present invention compares the current pH value with the preset target pH value, calculates the required ion concentration, sets an intermediate pH value between the current pH value and the target pH value, determines the amount of solution to be added when the preset intermediate pH value is reached, calculates the remaining amount of solution to be added by the target solution amount and the amount of solution already added, controls the corresponding fluid replenishment mechanism to perform the corresponding action, thereby realizing automatic control of the operation of the entire fluid replenishment mechanism, and can reach the required solution amount when the required pH value is reached, thereby effectively avoiding the problem of too much or too little solution, speeding up the time required for fluid replenishment, and improving production efficiency.

[0043] (2) Compared with the prior art, the present invention can control the amount of solution added when the electrochemical fluid reaches each concentration gradient by setting more than one preset intermediate pH value, thereby performing multiple fine-tuning, thereby achieving more accurate fluid replenishment and realizing more accurate control of the fluid replenishment mechanism.

[0044] (3) Compared with the prior art, the present invention can divert the solution entering the tank body by setting up an electrochemical tank, so that the added solution is dispersed, the contact surface with the original solution in the tank body is increased, and the local concentration unevenness in the tank body is effectively avoided.

[0045] (4) Compared with the prior art, the present invention divides the original solution in the tank body into an inner layer and an outer layer. When the air is blown through the air pipe, the solution added to the outer layer is disturbed along a first direction, and the original solution in the inner layer is disturbed along a second direction. During the disturbance process, the two are in full contact, thereby achieving uniform mixing of the supplementary solution and the solution in the tank body, so that the ion concentration of the solution in the tank body after replenishment is as consistent as possible, effectively avoiding the problem of uneven local ion concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Shown is a schematic diagram of a method according to an embodiment of the present invention;

[0047] Figure 2 Shown is a schematic diagram of a system in one embodiment of the present invention;

[0048] Figure 3 Shown is a schematic structural diagram of an embodiment of the present invention;

[0049] Figure 4 Shown is a cross-sectional view of a tank body in one embodiment of the present invention;

[0050] Figure 5 Display as Figure 4 A in the enlarged view;

[0051] Figure 6 Shown is a schematic diagram of the structure of an air blowing pipe in one embodiment of the present invention;

[0052] Figure 7 Shown is a schematic structural diagram of a liquid guide plate in one embodiment of the present invention.

[0053] Description of reference numerals:

[0054] Trough body 1, air blowing pipe 2, outer tube 201, first air guide block 202, first air guide hole 203, inner tube 204, second air guide block 205, second air guide hole 206, liquid preparation chamber 3, auxiliary pH meter 4, auxiliary liquid level gauge 5, pressure valve 6, liquid outlet pipe 7, liquid guide plate 8, liquid guide block 9, liquid guide groove 901, liquid guide hole 902, connecting groove 903, first guide part 10, first guide groove 1001, second guide part 11, second guide groove 1101; liquid extraction pipe 12, auxiliary pipe 13, filter 14, temporary storage box 15, main pipe 16, liquid distribution pipe 17, dilution solution tank 18, electrochemical liquid tank 19, main pH meter 20, main liquid level gauge 21. DETAILED DESCRIPTION

[0055] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0056] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The type, quantity and ratio of each component during actual implementation can be a random change, and the component layout type may also be more complicated. The structure, ratio, size, etc. illustrated in the drawings of the present specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the present invention. The change or adjustment of its relative relationship should also be regarded as the scope of the present invention without substantially changing the technical content.

[0057] Before describing the present embodiment in detail, the present embodiment is explained. The electrochemical cell in the present embodiment is mainly used for electrochemical reactions on large sheet products. For example, the electrochemical cell deposits an electrode sheet. A layer of sediment is deposited on the electrode sheet to make the electrode sheet reach a corresponding thickness to achieve the desired purpose. During the deposition process, the required thickness of the sediment can be adjusted by reaction time, temperature, and ion concentration. After the reaction, the solution in the electrochemical cell is filtered. After filtering, the electrochemical cell is replenished so that the solution in the electrochemical cell meets the required solution volume and ion concentration required for the next production. Therefore, the ion concentration of the electrochemical liquid in the electrochemical cell is more important. In order to adjust the ion concentration in the electrochemical cell, a replenishment unit is mainly used to replenish the electrochemical cell to replenish the consumed ions. During the replenishment process, the electrochemical liquid and the dilution solution are mixed and added to finally make the amount of ions in the electrochemical cell reach the required amount of ions. During the replenishment process, the ions come from the electrochemical liquid, which is diluted with a dilution solution to increase the volume of the replenishment liquid so that the overall amount of the solution reaches the amount required for the next production. During the replenishment process, the ion amount is measured by pH.

[0058] like Figure 1-Figure 7As shown, the present invention proposes a method for replenishing liquid in an electrochemical tank;

[0059] In an exemplary embodiment, a method for replenishing an electrochemical cell includes:

[0060] Obtaining a current solution volume and a current pH value of the solution in the electrochemical tank, and determining a total replenishment volume of the electrochemical solution and the dilution solution in the electrochemical tank based on the current solution volume, the current pH value, and a preset target solution volume and target pH value;

[0061] Based on the current solution volume and the target solution volume, determining a total amount of a first intermediate supplementary solution that satisfies a preset intermediate pH value between the current solution volume and the target solution volume, and controlling the liquid replenishment unit to replenish the solution, wherein the preset intermediate pH value is between the current pH value and the target pH value;

[0062] During the rehydration process, the solution in the electrochemical tank is stirred, and the actual preset intermediate pH value is obtained after the stirring is performed for a preset time;

[0063] Comparing the preset intermediate pH value with the actual preset intermediate pH value, and determining the total amount of the second intermediate replenishment solution required to reach the target pH value according to the total replenishment amount and the comparison result, and controlling the replenishment of the liquid replenishment unit;

[0064] During the rehydration process, the solution in the electrochemical tank is stirred so that the solution in the electrochemical tank reaches the target solution volume and the target pH value.

[0065] In this embodiment, the current pH value is compared with the preset target pH value, and after the required ion concentration is calculated, an intermediate pH value is set between the current pH value and the target pH value, and the amount of solution added when the preset intermediate pH value is reached is determined. The remaining amount of solution to be added is calculated by the target solution amount and the amount of solution already added, and the corresponding fluid replenishment mechanism is controlled to perform the corresponding action, thereby realizing automatic control of the operation of the entire fluid replenishment mechanism, and being able to reach the required solution amount when the required pH value is reached, thereby effectively avoiding the problem of too much or too little solution, speeding up the time required for fluid replenishment, and improving production efficiency.

[0066] In this embodiment, one or more preset intermediate pH values ​​can be set, and multiple preset intermediate pH values ​​can be set to control the amount of solution replenished when the electrochemical fluid reaches each concentration gradient, so as to perform multiple fine-tuning, thereby achieving more precise fluid replenishment and more precise control of the fluid replenishment mechanism, thereby achieving the corresponding ion concentration and solution volume.

[0067] It is worth noting that in this embodiment, the preset intermediate pH value is a value preset in the controller, which is between the current pH value and the target pH value. In a specific implementation, the preset intermediate pH value can be manually input, for example, more than two average concentration gradients are set between the current pH value and the target pH value, or it can be set randomly, and the averagely set concentration gradient has a better effect.

[0068] For example, if the pH difference is 2, 1 intermediate pH value, 3 intermediate pH values, and 4 intermediate pH values ​​can be set between 0-2, and the number of intermediate pH values ​​can be controlled according to actual needs.

[0069] In an exemplary embodiment, determining the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical cell includes:

[0070] Compare the current solution volume with the target solution volume to obtain the total amount of supplementary solution required;

[0071] Compare the current pH value with the target pH value to determine the concentration difference between the current ion concentration and the target ion concentration;

[0072] Determine the total replenishment amount of the electrochemical solution according to the concentration difference;

[0073] The total replenishment amount of the dilution solution is determined based on the total replenishment amount of the electrochemical solution and the total amount of replenishment solution required.

[0074] In this embodiment, after determining the concentration difference between the current ion concentration and the target ion concentration, the total replenishment amount of the required electrochemical liquid can be determined based on the concentration difference. After determining the total replenishment amount of the electrochemical liquid, the total replenishment amount of the diluted solution can be obtained by the liquid level difference and the total replenishment amount of the electrochemical liquid.

[0075] In an exemplary embodiment, after obtaining the required total amount of replenishing solution, the method further comprises:

[0076] Determine the actual sediment volume based on the electrochemical reaction;

[0077] Determine a first liquid level value in the current electrochemical tank according to the current solution volume and the actual sediment volume;

[0078] Obtaining a second liquid level value in the electrochemical tank after the filtration cycle, and determining the volume of the sediment in the electrochemical tank according to the second liquid level value and the first liquid level value;

[0079] If the total amount of the required supplementary solution is less than the preset maximum liquid level after adding, the liquid replenishment operation is performed;

[0080] If the total amount of required supplementary solution added is greater than the preset maximum liquid level, the filtration cycle is performed again.

[0081] In this embodiment, since solid precipitates are generated during the electrochemical reaction, even if they are filtered and circulated into the electrochemical cell, the solution inside the electrochemical cell cannot be completely extracted under actual circumstances, and residual precipitates still exist in the electrochemical cell. Therefore, the actual amount of solution in the electrochemical cell body 1 is less than the amount determined by the sensor (such as a liquid level meter), and the volume of the precipitates remaining in the electrochemical cell after the filtration cycle needs to be calculated. If the total amount of the required replenishment solution plus the volume of the remaining precipitates is greater than the preset maximum liquid level value, the final liquid level height will be greater than the preset liquid level height, which proves that the filtration is not thorough enough and needs to be filtered again and circulated for verification until the volume of the precipitates in the electrochemical cell meets the requirements, then the refilling operation can be controlled.

[0082] It is worth noting that in this embodiment, the total amount of supplementary solution required is:

[0083] V3=V0-V1-V2

[0084] Among them, V3 is the total amount of supplementary solution required, V0 is the target solution volume, V1 is the solution volume in the electrochemical cell after the reaction, and V2 is the actual precipitate volume.

[0085] It should also be noted that in this embodiment, the total amount of electrochemical liquid replenished is:

[0086] V4=V3(C0-C2) / C1;

[0087] Among them, V4 is the total amount of electrochemical liquid replenished, C0 is the target concentration, C1 is the ion concentration of the electrodeposition replenishing liquid, and C2 is the ion concentration of the solution in the electrochemical tank after the filtration cycle. According to the total amount of replenished liquid and the total amount of replenished electrochemical liquid, the total amount of replenished diluted solution V5=V3-V4 can be obtained; if

[0088] V4+V5+(V2-V1)>V6;

[0089] Then the filtration cycle is performed again, where V6 is the preset liquid level value; if

[0090] V4+V5+(V2-V1)<V6;

[0091] Then perform fluid refilling.

[0092] In an exemplary embodiment, a method for determining a first intermediate replenishment solution total amount between a current solution amount and a target solution amount that satisfies a preset intermediate pH value includes:

[0093] Establishing one or more preset intermediate pH values ​​between the current pH value and the target pH value and determining the intermediate ion concentration according to the preset intermediate pH values;

[0094] Calculating an ion concentration difference according to a current pH value and a preset intermediate pH value, and determining a first intermediate replenishment amount of the electrochemical fluid according to the ion concentration difference;

[0095] determining a first intermediate replenishment amount of the dilution solution based on the first intermediate replenishment amount of the electrochemical solution and a proportional relationship between the total replenishment amounts of the electrochemical solution and the dilution solution;

[0096] The total amount of the first intermediate replenishment solution is determined based on the first intermediate replenishment amount of the electrochemical solution and the first intermediate replenishment amount of the dilution solution.

[0097] In this embodiment, after the first intermediate replenishment amount of the electrochemical liquid is added, the first intermediate replenishment amount of the dilution solution needs to be added in accordance with the calculated ratio of the total replenishment amounts of the electrochemical liquid and the dilution solution in the electrochemical cell to meet the volume requirement.

[0098] It is worth noting that the method for determining the total amount of the second intermediate replenishment solution required to reach the target pH value according to the total replenishment amount and the comparison result in this embodiment includes:

[0099] Determining an intermediate ion concentration after adding the total amount of the first intermediate supplement solution according to a preset intermediate pH value, and determining an intermediate concentration difference between the intermediate ion concentration and the target ion concentration;

[0100] determining a second intermediate replenishment amount of the electrochemical fluid according to the intermediate concentration difference;

[0101] determining a second intermediate replenishment amount of the dilution solution based on the total replenishment amount, the total amount of the first intermediate replenishment solution, and the second intermediate replenishment amount of the electrochemical solution;

[0102] The total amount of the second intermediate replenishment solution is determined based on the second intermediate replenishment amount of the electrochemical solution and the second intermediate replenishment amount of the dilution solution.

[0103] The present invention also provides an electrochemical tank refilling system, which includes a storage module, a detection module, a calculation module, a control module, an execution unit and a human-computer interaction module;

[0104] The storage module is used to store the parameters set for the electrochemical reaction, including the thickness of the deposit, the total amount of the solution, the deposition time, the ion concentration of the electrochemical solution, and the target pH value. It should be noted that the thickness of the deposit is the thickness of the ions deposited on the sheet during the reaction, and the thickness of the deposit can be adjusted according to the type of sheet production. Therefore, each deposition thickness parameter corresponds to the deposition time, the ion concentration of the electrochemical solution, and the target pH value.

[0105] The detection module is used to detect the pH value and liquid level information in the electrochemical tank.

[0106] The calculation module is used to calculate the difference between the current pH value and the real-time pH value according to the detection module, obtain the ion concentration difference, and thus calculate the total amount of electrochemical liquid replenishment and the total amount of dilution solution replenishment required.

[0107] The control module is used to control the operation of the filtering circulation equipment, and is also used to control the liquid replenishing unit to replenish liquid into the electrochemical tank according to the calculation module.

[0108] The execution units are the electrochemical liquid tank 19 and the dilution solution tank 18, which are controlled by the control module to control the liquid output amount and liquid output rate.

[0109] The human-computer interaction module is used to select the sediment thickness, and the system automatically selects the setting parameters according to the sediment thickness.

[0110] The above modules and execution units all process information and execute corresponding actions through the central processing unit.

[0111] The present invention also provides an electrochemical tank device, using the above electrochemical tank refilling method, comprising:

[0112] A tank body 1, a blowing pipe 2 is provided at the bottom of the tank body 1, the blowing pipe 2 includes an outer layer tube 201 and an inner layer tube 204, a first air guide block 202 is provided on the outer layer tube 201, a plurality of second air guide blocks 205 are provided on the inner layer tube 204, the air guide direction of the first air guide block 202 is arranged in a clockwise direction, and the air guide direction of the second air guide block 205 is arranged in a counterclockwise direction;

[0113] The liquid replenishing mechanism includes a liquid replenishing tank and a liquid guiding assembly. The liquid replenishing tank is used to replenish the solution into the tank body 1. The liquid guiding assembly is arranged on one side of the tank body 1 close to the liquid replenishing tank. The liquid guiding assembly is used to disperse the replenishing solution into the electrochemical tank.

[0114] The filtering circulation mechanism is arranged outside the tank body 1 , and the input end of the filtering circulation mechanism is connected with the inside of the tank body 1 , and is used for filtering the solution in the tank body 1 and letting the solution enter the tank body 1 again.

[0115] In this embodiment, the electrochemical cell is provided to divert the solution entering the cell body 1 , so that the added solution is dispersed, the contact surface with the original solution in the cell body 1 is increased, and the local concentration unevenness in the cell body 1 is effectively avoided.

[0116] In this embodiment, the original solution in the tank body 1 is divided into an inner layer and an outer layer. When the air pipe 2 blows, the solution added to the outer layer is disturbed along the first direction, and the original solution in the inner layer is disturbed along the second direction. During the disturbance process, the two are in full contact to achieve uniform mixing, thereby avoiding the problem of uneven local ion concentration.

[0117] It is worth mentioning that Figure 4As shown, the air blowing tube 2 in this embodiment is arranged in a "U" shape, the part located in the outer circle is the outer layer tube 201, the part located in the inner circle is the inner layer tube 204, a plurality of first air holes are arranged on the outer circle, a first air guide block 202 is arranged on the first air hole, a first air guide hole 203 is arranged on the first air guide block 202, a plurality of second air holes are arranged on the inner circle, a second air guide block 205 is arranged on the second air hole, a second air guide hole 206 is arranged on the second air guide block 205, and the first air guide block 202 has a plurality of second air holes, a first air guide block 206 is arranged on the second air guide block 206, and the first air guide block 202 has a plurality of second air holes, a first air guide block 206 has a plurality of second air holes, a first air guide block 206 has a plurality of second air holes, and a second air guide block 206 has a plurality of second air holes, a first air guide block 206 has a plurality of second air holes, and a second air guide block 206 has a plurality of second air holes, a first air guide block 206 has a plurality of second air holes, and a second air guide block 206 has a plurality of second air holes, a first air guide block 206 has a plurality of second air holes, and a first air guide block 206 has a plurality of second air holes, ... The first air guide hole 203 is generally arranged in a clockwise direction, and the second air guide hole 206 in the second air guide block 205 is generally arranged in a counterclockwise direction. Therefore, when the air guide pipe is ventilated, the airflow coming out of the first air guide hole 203 will push the liquid in the electrochemical tank to rotate clockwise, and the airflow coming out of the second air guide hole 206 will push the liquid in the electrochemical tank to rotate counterclockwise, so that the inner layer counterclockwise rotating solution and the outer layer supplemented solution are fully stirred to make the solution concentrations in various places consistent.

[0118] It should also be noted that in the present embodiment, the first air guide hole 203 and the second air guide hole 206 both have an elevation angle. Therefore, when the outer solution forms a clockwise vortex and the inner solution forms a counterclockwise vortex for uniform mixing, the set elevation angle can also push the lower solution to move toward the upper solution in the height direction, so as to achieve the ion balance of the solution in the electrochemical cell in the height direction during the rehydration process.

[0119] It should also be noted that in this embodiment, one end of the air blowing pipe 2 passes through the tank body 1 and is connected to a fan, which can blow air into the air blowing pipe 2 to provide positive pressure, and the gas is blown out from the first air guide hole 203 and the second air guide hole 206.

[0120] In an exemplary embodiment, the liquid guiding component includes a liquid guiding plate 8 and a liquid guiding block 9. The liquid guiding plate 8 is horizontally extended along the inner wall of the trough body 1. The liquid guiding block 9 is arranged on the inner wall of the liquid guiding plate 8 and is located between the inner wall of the trough body 1 and the liquid guiding plate 8. A liquid guiding groove 901 is provided on the liquid guiding block 9. The liquid guiding groove 901 is extended along the length direction of the liquid guiding plate 8. A connecting groove 903 is provided at the bottom of the liquid guiding block 9. A plurality of liquid guiding holes 902 are opened on the liquid guiding groove 901. The liquid guiding holes 902 pass through the liquid guiding block 9 and are connected with the connecting groove 903.

[0121] In the prior art, the supplementary electrochemical liquid and the diluted solution are mainly introduced directly into the electrochemical cell through pipelines, which causes a high ion concentration at the corresponding part of the pipeline and forms a local uneven concentration. In this embodiment, the liquid guiding component is set to disperse the supplementary liquid entering the electrochemical cell, increase the contact area between the supplementary liquid and the original solution in the electrochemical cell, improve the balance of concentration, and avoid local concentration differences.

[0122] Exemplarily, in this embodiment, the side surface of the liquid guiding block 9 is fan-shaped, and its arc surface faces the inner wall of the tank body 1 .

[0123] Exemplarily, in this embodiment, a liquid preparation chamber 3 is further provided, and the liquid preparation chamber 3 is connected to the liquid replenishment tank. The liquid preparation chamber 3 is arranged on the outer wall of the tank body 1. The liquid replenishment tank includes an electrochemical liquid replenishment tank and a dilution solution replenishment tank. When the control module controls the electrochemical liquid replenishment tank and the dilution solution replenishment tank to add a certain amount of liquid to the liquid preparation chamber 3, the liquid is mixed evenly in the liquid preparation chamber 3. A liquid outlet pipe 7 is provided at the bottom of the liquid preparation chamber 3, and a pressure valve 6 is provided on the liquid outlet pipe 7. The pressure valve 6 is controlled by the control module. After the required pH value is reached, the liquid is replenished into the tank body 1 through the liquid outlet pipe 7. The liquid outlet port of the liquid outlet pipe 7 is inclined. , facing the liquid guiding groove 901, when the supplementary liquid flows out from the end of the liquid outlet pipe 7, most of the liquid enters the liquid guiding groove 901, flows along the extension direction of the liquid guiding groove 901 in the liquid guiding groove 901, and flows to the bottom from the multiple liquid guiding holes 902 opened on the liquid guiding groove 901, and the excess supplementary liquid in the liquid guiding groove 901 will overflow, and finally be guided to the liquid guiding plate 8 along the curved surface of the liquid guiding block 9, realizing the diversion function of the liquid, thereby realizing the dispersion of the supplementary liquid in the liquid outlet pipe 7, increasing the contact area with the original solution in the tank body 1, and improving the balance of the local concentration of the solution.

[0124] It is worth noting that in this embodiment, an auxiliary liquid level meter 5 and an auxiliary pH meter can be set in the liquid preparation chamber 3 to be electrically connected to the detection module. When the required ion concentration is reached, the liquid outlet pipe 7 can be opened to replenish the liquid in the tank body 1.

[0125] It should also be noted that in this embodiment, a stirring unit may be further provided in the liquid preparation chamber 3 to stir the supplemented electrochemical liquid and the diluted solution to facilitate detection by the auxiliary pH meter.

[0126] In an exemplary embodiment, the liquid guide plate 8 includes a first guide portion 10 and a second guide portion 11. The second guide portion 11 is integrally arranged with the first guide portion 10 and is inclined between the second guide portion 11 and the first guide portion 10. The angle between the second guide portion 11 and the horizontal direction is greater than the angle between the first guide portion 10 and the horizontal direction. The first guide portion 10 is provided with a first guide groove 1001 connected to the connecting groove 903, and the second guide portion 11 is provided with a second guide groove connected to the first guide groove 1001.

[0127] It is worth noting that in this embodiment, since the electrode sheet needs to be placed in the tank body 1 in a static environment of the solution to carry out an electrochemical reaction, the method of adding the solution adopts a method of adding liquid in a fast-first-and-slow manner. Specifically, the control module controls the opening and closing size of the pressure valve 6 according to the amount of replenishing liquid sensed by the first liquid level gauge. When the replenishing liquid starts, the pressure is relatively high. When the subsequent replenishing liquid gradually decreases, the pressure provided by the pressure valve 6 gradually decreases. When the pressure is relatively high, the flow rate is greater. Due to the greater pressure, the replenishing liquid directly enters the tank body 1 from the first guide part 10 when it flows out from the liquid guide plate 8. At this time, the liquid rushes The impact force is also greater, and it can fully contact the solution in the tank body 1. When the pressure of the supplementary liquid is gradually reduced, the flow rate is reduced synchronously. The supplementary liquid will not flow directly from the first guide part 10 into the tank body 1, but will flow from the first guide groove 1001 into the second guide groove, and enter the tank body 1 through the guiding effect of the second guide groove. In the specific setting, the first guide part 10 is located above the liquid surface, and the bottom end of the second guide part 11 is always located below the liquid surface. When guided by the second guide part 11, the supplementary liquid enters the tank body 1 from below the liquid surface, thereby reducing the disturbance of the liquid surface by the supplementary liquid. Synchronously, the blowing pressure in the blowing pipe 2 will decrease synchronously with the liquid replenishment situation, and the stirring will be stopped immediately after the liquid replenishment is completed to reduce the continuous disturbance of the liquid surface by stirring.

[0128] It should also be noted that in this embodiment, the total amount of solution in the tank body 1 is always lower than the liquid outlet end of the liquid outlet pipe 7 to prevent the solution in the tank body 1 from entering the liquid outlet pipe 7 .

[0129] In an exemplary embodiment, the filtration circulation mechanism includes a filter 14 and a temporary storage box 15. The input end of the filter 14 is provided with a liquid extraction pipe connected to the interior of the tank body 1. The air blowing pipe 2 is provided with a connecting pipe, and the free end of the connecting pipe is connected to the liquid extraction pipe. The filter 14 can be used to extract the liquid in the tank body 1 into the temporary storage box 15. The temporary storage box 15 is provided with a circulation pipe for introducing the solution in the temporary storage box 15 into the tank body 1.

[0130] In this embodiment, the filtering circulation mechanism is used to filter the solution after the reaction in the tank body 1, filter out most of the sediment, and through the temporary storage box 15, all the solution in the tank body 1 can be extracted and then introduced into the tank body 1, so as to achieve complete filtration.

[0131] Exemplarily, in this embodiment, the input end of the filter 14 is provided with a suction pipe, which can extract the solution in the tank body 1. An auxiliary pipe 13 is provided near the free end of the suction pipe. The auxiliary pipe 13 passes through the bottom of the tank body 1 and is connected to the suction pipe. The two pipes are specifically connected by a three-way joint. During the filtration cycle, the blowing pipe 2 and the filter 14 are opened synchronously. The blowing pipe 2 can stir the solution in the tank body 1 to prevent the sediment from being deposited at the bottom of the tank body 1. At the same time, the sediment that may enter the blowing pipe 2 can be blown into the auxiliary pipe 13. The pump structure on the filter 14 enables the suction pipe to extract the solution in the tank body 1, and the auxiliary pipe 13 can be set to synchronously increase the amount of solution in the tank body 1 entering the filter 14, thereby improving the suction efficiency.

[0132] It is worth noting that the circulation pipe in this embodiment includes a main pipe 16 and a plurality of liquid distribution pipes 17 arranged on the main pipe 16. The output end of the liquid distribution pipe 17 is aligned with the interior of the tank body 1. The main pipe 16 is used to export the solution inside the temporary storage box 15, and the liquid distribution pipe 17 is used to improve the efficiency of introducing the solution into the interior of the tank body 1.

[0133] In an exemplary embodiment, a plurality of main pH meters are disposed in the tank body 1 . The plurality of main pH meters are located at different heights in the tank body 1 . A main liquid level meter 21 is disposed in the tank body 1 .

[0134] In this embodiment, multiple main pH meters are set up to monitor the pH values ​​at different positions in the tank body 1, so as to measure the local ion concentration and determine whether the stirring is uniform. The main liquid level meter 21 is used to monitor the liquid level in the tank body 1, reflect the solution volume, and feed back to the detection module.

[0135] The present invention also provides a device, comprising:

[0136] one or more processors and memory,

[0137] A computer program is stored in the memory, and when the one or more processors execute the computer program, the device executes the above method.

[0138] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by one or more processors, enables a device to execute the above method.

[0139] In summary, the present invention detects the ion concentration, realizes the automatic replenishment of the electrochemical cell by the replenishment unit, and sets an intermediate concentration gradient during the replenishment process to ensure that the replenished solution can reach the corresponding ion concentration when the set amount is reached. At the same time, through the set electrochemical cell replenishment equipment, the solution added to the cell body 1 can be mixed evenly with the original solution in the cell body 1, effectively avoiding the occurrence of local uneven ion concentration inside the cell body 1, thereby improving product quality.

[0140] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for replenishing an electrochemical cell, characterized in that: include: Obtaining a current solution volume and a current pH value of the solution in the electrochemical tank, and determining the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical tank respectively based on the current solution volume, the current pH value, and a preset target solution volume and target pH value; Based on the current solution volume and the target solution volume, determining a first intermediate replenishing solution total amount that satisfies a preset intermediate pH value between the current solution volume and the target solution volume, and controlling the liquid replenishing unit to replenish the liquid, wherein the preset intermediate pH value is between the current pH value and the target pH value; The method for determining the total amount of the first intermediate supplementary solution that satisfies the preset intermediate pH value between the current solution amount and the target solution amount includes: Establishing one or more preset intermediate pH values ​​between the current pH value and the target pH value and determining the intermediate ion concentration according to the preset intermediate pH values; Calculating an ion concentration difference according to a current pH value and a preset intermediate pH value, and determining a first intermediate replenishment amount of the electrochemical liquid according to the ion concentration difference; determining a first intermediate replenishment amount of the dilution solution based on the first intermediate replenishment amount of the electrochemical solution and a proportional relationship between the total replenishment amounts of the electrochemical solution and the dilution solution; determining a first intermediate replenishment solution total amount based on a first intermediate replenishment amount of the electrochemical solution and a first intermediate replenishment amount of the dilution solution; During the rehydration process, the solution in the electrochemical tank is stirred, and an actual preset intermediate pH value is obtained after the stirring is performed for a preset time; Comparing the preset intermediate pH value with the actual preset intermediate pH value, and determining the total amount of the second intermediate replenishment solution required to reach the target pH value according to the total replenishment amount and the comparison result, and controlling the replenishment of the liquid replenishment unit; The method for determining the total amount of the second intermediate replenishment solution required to reach the target pH value according to the total replenishment amount and the comparison result includes: Determining an intermediate ion concentration after adding the total amount of the first intermediate supplement solution according to a preset intermediate pH value, and determining an intermediate concentration difference between the intermediate ion concentration and the target ion concentration; determining a second intermediate replenishment amount of the electrochemical liquid according to the intermediate concentration difference; determining a second intermediate replenishment amount of the dilution solution based on the total replenishment amount, the total amount of the first intermediate replenishment solution, and the second intermediate replenishment amount of the electrochemical solution; determining the second intermediate replenishment solution total amount according to the second intermediate replenishment amount of the electrochemical solution and the second intermediate replenishment amount of the dilution solution; During the rehydration process, the solution in the electrochemical tank is stirred so that the solution in the electrochemical tank reaches the target solution volume and the target pH value.

2. The electrochemical tank refilling method according to claim 1, characterized in that: The determining of the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical tank comprises: Compare the current solution volume with the target solution volume to obtain the total amount of supplementary solution required; Compare the current pH value with the target pH value to determine the concentration difference between the current ion concentration and the target ion concentration; Determining the total replenishment amount of the electrochemical solution according to the concentration difference; The total replenishment amount of the dilution solution is determined according to the total replenishment amount of the electrochemical solution and the total amount of replenishment solution required.

3. The electrochemical tank refilling method according to claim 2, characterized in that: After obtaining the required total amount of replenishing solution, the method further comprises: Determine the actual sediment volume based on the electrochemical reaction; Determine a first liquid level value in the current electrochemical tank according to the current solution amount and the actual sediment volume; Obtaining a second liquid level value in the electrochemical tank after the filtration cycle, and determining the volume of the sediment in the electrochemical tank according to the second liquid level value and the first liquid level value; If the total amount of the required supplementary solution is less than the preset maximum liquid level after it is added, a liquid replenishment operation is performed; If the total amount of the required supplementary solution added is greater than the preset maximum liquid level, the filtration cycle is performed again.

4. An electrochemical cell device, using the electrochemical cell refilling method according to any one of claims 1 to 3, characterized in that: include: A tank body, wherein an air blowing pipe is provided at the bottom of the tank body, the air blowing pipe comprises an outer layer tube and an inner layer tube, the outer layer tube is provided with a first air guide block, and the inner layer tube is provided with a plurality of second air guide blocks; A fluid replenishment mechanism, the fluid replenishment mechanism comprising a fluid replenishment tank and a fluid guide assembly, the fluid replenishment tank being used to replenish solution into the tank body, the fluid guide assembly being arranged on one side of the tank body close to the fluid replenishment tank, and the fluid guide assembly being used to disperse the replenishment solution into the electrochemical tank; The filtering circulation mechanism is arranged outside the tank body, and the input end of the filtering circulation mechanism is communicated with the inside of the tank body, and is used for filtering the solution in the tank body and re-entering the tank body.

5. The electrochemical cell device according to claim 4, characterized in that: The liquid guiding assembly includes a liquid guiding plate and a liquid guiding block, wherein the liquid guiding plate is horizontally extended along the inner wall of the trough body, the liquid guiding block is arranged between the inner wall of the trough body and the liquid guiding plate, the liquid guiding block is provided with a liquid guiding groove, the liquid guiding groove is extended along the length direction of the liquid guiding plate, a connecting groove is provided at the bottom of the liquid guiding block, a plurality of liquid guiding holes are opened on the liquid guiding groove, and the liquid guiding holes penetrate the liquid guiding block and are connected with the connecting groove.

6. The electrochemical cell device according to claim 5, characterized in that: The liquid guide plate includes a first guide portion and a second guide portion, the second guide portion is integrally arranged with the first guide portion and the second guide portion is inclined with the first guide portion, the angle between the second guide portion and the horizontal direction is greater than the angle between the first guide portion and the horizontal direction, the first guide portion is provided with a first guide groove connected with the connecting groove, and the second guide portion is provided with a second guide groove connected with the first guide groove.

7. A device, characterized in that: include: one or more processors and memory, A computer program is stored in the memory, and when the one or more processors execute the computer program, the device executes the method according to any one of claims 1 to 3.

8. A computer-readable storage medium, characterized in that: A computer program is stored thereon, which, when executed by one or more processors, causes the device to perform the method according to any one of claims 1 to 3.

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