Electrochemical tank liquid supplementing system

Abstract

The invention belongs to the technical field of equipment control, and particularly discloses an electrochemical cell liquid supplementing system which comprises a storage module, a detection module, a calculation module and a control module. The calculation module is used for obtaining the solution amount and the pH value in the tank body after the reaction, respectively determining the total supplement amount of the electrochemical solution and the diluted solution, determining the total amount of a second intermediate supplement solution according to the comparison result of the actual intermediate pH value and the preset intermediate pH value, and controlling the liquid supplement unit to perform liquid supplement and stirring to reach the target pH value. The ion concentration in the tank body is detected, automatic liquid supplementing is achieved, the situation that the local ion concentration in the tank body is not uniform is effectively avoided, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment system control, and particularly to an electrochemical cell replenishing liquid system. Background Art

[0002] In the electrochemical industry, as production progresses, the electrochemical liquid will change to a certain extent. Due to the consumption of ions in the electrochemical liquid, it is necessary to replenish the required solution in the electrochemical cell to meet the ion amount and solution amount required in the next batch of production. The existing solution replenishes the electrochemical cell through a manually proportioned control replenishing mechanism. However, when adding the solution manually, since the proportion of the electrochemical liquid and the dilution solution cannot be accurately mastered, the amount of the solution is too much or too little, and continuous adjustment is required, wasting a lot of time and affecting subsequent production. Moreover, after adding a new solution with the traditional replenishing mechanism, there will be uneven local ion concentration, which is likely to affect the production quality. Summary of the Invention

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

[0004] To achieve the above object and other related objects, the present invention provides an electrochemical cell replenishing liquid system, including:

[0005] A storage module for storing the set parameters of the electrochemical reaction;

[0006] A detection module for detecting the pH value and liquid level information in the electrochemical cell;

[0007] A calculation module for calculating the difference between the current pH value and the real-time pH value according to the detection module to obtain the ion concentration difference, thereby calculating the total amount of electrochemical liquid to be replenished and the total amount of dilution solution to be replenished.

[0008] A control module for controlling the replenishing unit to replenish the electrochemical cell according to the calculation module;

[0009] Wherein, the detection module obtains the current solution amount and the current pH value of the solution in the electrochemical cell, and based on the current solution amount, the current pH value, the preset target solution amount and the target pH value, the calculation module respectively determines the total replenishment amounts of the electrochemical liquid and the dilution solution in the electrochemical cell;

[0010] The calculation module establishes one or more preset intermediate pH values between the current pH value and the target pH value based on the current solution amount and the target solution amount, and determines the intermediate ion concentration according to the preset intermediate pH values;

[0011] The calculation module calculates the ion concentration difference based on the current pH value and the preset intermediate pH value, and determines the first intermediate replenishment amount of the electrochemical solution according to the ion concentration difference;

[0012] The calculation module determines the first intermediate replenishment amount of the dilution solution based on the first intermediate replenishment amount of the electrochemical solution and the proportional relationship between the total replenishment amount of the electrochemical solution and the dilution solution;

[0013] The control module determines the total amount of the first intermediate replenishment solution according to the first intermediate replenishment amount of the electrochemical solution and the first intermediate replenishment amount of the dilution solution, and controls the liquid replenishment unit to replenish the liquid;

[0014] The control module controls the execution unit to stir the solution in the electrochemical cell during the liquid replenishment process, and obtains the actual preset intermediate pH value after the stirring is performed for a preset time;

[0015] The calculation module compares the preset intermediate pH value with the actual preset intermediate pH value, determines the intermediate ion concentration after adding the total amount of the first intermediate replenishment solution according to the preset intermediate pH value, and determines the intermediate concentration difference between the intermediate ion concentration and the target ion concentration;

[0016] The calculation module determines the second intermediate replenishment amount of the electrochemical solution according to the intermediate concentration difference;

[0017] The calculation module determines the second intermediate replenishment amount of the dilution solution according to the total replenishment amount, the total amount of the first intermediate replenishment solution, and the second intermediate replenishment amount of the electrochemical solution;

[0018] The calculation module determines the total amount of the second intermediate replenishment solution according to the second intermediate replenishment amount of the electrochemical solution and the second intermediate replenishment amount of the dilution solution, and the control module controls the liquid replenishment unit to replenish the liquid;

[0019] The control module controls the execution unit to stir the solution in the electrochemical cell during the liquid replenishment process, so that the solution in the electrochemical cell reaches the target solution volume and the target pH value.

[0020] In one embodiment, the calculation module compares the current solution volume with the target solution volume to obtain the total amount of the required replenishment solution;

[0021] The calculation module compares the current pH value with the target pH value to determine the concentration difference between the current ion concentration and the target ion concentration;

[0022] The calculation module determines the total replenishment amount of the electrochemical solution according to the concentration difference;

[0023] The calculation module determines the total replenishment amount of the dilution solution according to the total replenishment amount of the electrochemical solution and the total amount of the required replenishment solution.

[0024] In one embodiment, the electrochemical cell replenishing liquid system further includes an electrochemical cell device, which includes:

[0025] A cell body, a blowing pipe is provided at the bottom of the cell body, the blowing pipe includes an outer layer pipe and an inner layer pipe, a first air guiding block is provided on the outer layer pipe, and a plurality of second air guiding blocks are provided on the inner layer pipe;

[0026] A liquid replenishing mechanism, the liquid replenishing mechanism includes a liquid replenishing tank and a liquid guiding component, the liquid replenishing tank is used to replenish the solution into the cell body, the liquid guiding component is arranged on one side of the cell body close to the liquid replenishing tank, and the liquid guiding component is used to disperse the replenished solution into the electrochemical cell;

[0027] A filtering and circulating mechanism, which is arranged outside the cell body, and the input end of the filtering and circulating mechanism is communicated with the inside of the cell body, and is used to filter the solution in the cell body and then enter the cell body again.

[0028] In one embodiment, the liquid guiding component includes a liquid guiding plate and a liquid guiding block, the liquid guiding plate extends horizontally along the inner wall of the cell body, the liquid guiding block is arranged between the inner wall of the cell body and the liquid guiding plate, a liquid guiding groove is provided on the liquid guiding block, the liquid guiding groove extends along the length direction of the liquid guiding plate, a communicating 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 through the liquid guiding block and are communicated with the communicating groove.

[0029] In one embodiment, the liquid guiding plate includes a first guiding portion and a second guiding portion, the second guiding portion is integrally provided with the first guiding portion and the second guiding portion is inclined with respect to the first guiding portion, the included angle between the second guiding portion and the horizontal direction is greater than the included angle between the first guiding portion and the horizontal direction, a first guiding groove communicated with the communicating groove is provided on the first guiding portion, and a second guiding groove communicated with the first guiding groove is provided on the second guiding portion.

[0030] As described above, an electrochemical cell replenishing liquid system proposed by the present invention has the following beneficial effects:

[0031] (1) Compared with the prior art, by comparing the current pH value with the preset target pH value, calculating the required ion concentration, setting an intermediate pH value between the current pH value and the target pH value, judging the amount of solution added when reaching the preset intermediate pH value, calculating the remaining amount of solution to be added based on the target solution amount and the amount of solution already added, and controlling the corresponding liquid replenishing mechanism to perform corresponding actions, the present invention realizes the automatic control of the operation of the entire liquid replenishing mechanism, can reach the required solution amount when reaching the required pH value, thus effectively avoiding the problems of too much or too little solution amount, shortening the time required for liquid replenishment, and improving the production efficiency.

[0032] (2) Compared with the prior art, the present invention can control the amount of solution supplemented when the electrochemical solution reaches each concentration gradient by setting more than one preset intermediate pH value, so as to perform multiple fine-tuning, thereby achieving more accurate liquid replenishment and more accurate control of the liquid replenishment mechanism.

[0033] (3) Compared with the prior art, the electrochemical cell provided by the present invention can shunt the solution entering the cell body, disperse the added solution, increase the contact surface with the original solution in the cell body, and effectively avoid local concentration non-uniformity in the cell body.

[0034] (4) Compared with the prior art, in the present invention, the original solution in the cell body is divided into an inner layer and an outer layer. When the air pipe blows air, 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 fully contact, realizing uniform mixing of the supplemented solution and the solution in the cell body, so that the ion concentration everywhere in the cell body is as consistent as possible after the solution is supplemented, effectively avoiding the problem of local ion concentration imbalance. Description of the Drawings

[0035] Figure 1 Shown is a schematic diagram of the method according to an embodiment of the present invention;

[0036] Figure 2 Shown is a schematic diagram of the system according to an embodiment of the present invention;

[0037] Figure 3 Shown is a schematic structural diagram according to an embodiment of the present invention;

[0038] Figure 4 Shown is a cross-sectional view of the cell body according to an embodiment of the present invention;

[0039] Figure 5 Shown as Figure 4 the enlarged view of A in

[0040] Figure 6 Shown is a schematic structural diagram of the air pipe according to an embodiment of the present invention;

[0041] Figure 7 Shown is a schematic structural diagram of the liquid guide plate according to an embodiment of the present invention.

[0042] Explanation of the Reference Numerals in the Drawings:

[0043] Tank body 1, blowing pipe 2, outer layer pipe 201, first air guiding block 202, first air guiding hole 203, inner layer pipe 204, second air guiding block 205, second air guiding hole 206, liquid mixing chamber 3, secondary pH meter 4, secondary liquid level meter 5, pressure valve 6, liquid outlet pipe 7, liquid guiding plate 8, liquid guiding block 9, liquid guiding groove 901, liquid guiding hole 902, communicating groove 903, first guiding part 10, first guiding groove 1001, second guiding part 11, second guiding groove 1101; liquid suction pipe 12, auxiliary pipe 13, filter 14, temporary storage tank 15, main pipe 16, liquid distribution pipe 17, dilution solution tank 18, electrochemical solution tank 19, main pH meter 20, main liquid level meter 21. Detailed implementation mode

[0044] The following uses specific specific examples to illustrate the implementation mode of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0045] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components during actual implementation. The type, quantity, and proportion of each component during actual implementation can be arbitrarily changed, and the component layout type may also be more complex. The structures, proportions, sizes, etc. shown in the diagrams of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substance significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope that can be covered by the technical content disclosed in the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationship should also be regarded as the scope under which the present invention can be implemented without substantial change in the technical content.

[0046] Before a detailed description of this embodiment, an explanation of this embodiment is provided. The electrochemical cell in this embodiment is mainly used for electrochemically reacting on large sheet products. For example, the electrochemical cell deposits on the electrode sheet. By depositing a layer of sediment on the electrode sheet, the electrode sheet reaches the corresponding thickness to achieve the required purpose. During the deposition process, the thickness of the required sediment can be adjusted by the reaction time, temperature, and ion concentration. After the reaction, the solution in the electrochemical cell will be filtered, and after filtration, the electrochemical cell will be replenished with liquid to make the solution in the electrochemical cell meet the solution volume and ion concentration required for the next production. Therefore, the ion concentration of the electrochemical solution in the electrochemical cell is relatively important. To adjust the ion concentration in the electrochemical cell, a replenishing unit is mainly used to replenish the electrochemical cell to supplement the consumed ions. During the replenishing process, the electrochemical solution and the dilution solution are mixed and added. Finally, the ion amount in the electrochemical cell reaches the required ion amount. During the replenishing process, the ions come from the electrochemical solution and are diluted with the dilution solution to increase the volume of the replenishing solution, so that the overall amount of the solution reaches the amount required for the next production. During the replenishing process, the ion amount is measured by pH.

[0047] As Figures 1-7 shown, the present invention proposes a method for replenishing an electrochemical cell;

[0048] In an exemplary embodiment, a method for replenishing an electrochemical cell includes:

[0049] Obtain the current solution volume and the current pH value of the solution in the electrochemical cell, and respectively determine the total replenishment amounts of the electrochemical solution and the dilution solution in the electrochemical cell based on the current solution volume, the current pH value, and the preset target solution volume and target pH value;

[0050] Based on the current solution volume and the target solution volume, determine a first total intermediate replenishment solution amount that satisfies a preset intermediate pH value between the current solution volume and the target solution volume, and control the replenishing unit to replenish the liquid. The preset intermediate pH value is between the current pH value and the target pH value;

[0051] Stir the solution in the electrochemical cell during the replenishing process, and obtain the actual preset intermediate pH value after the stirring is performed for a preset time;

[0052] Compare the preset intermediate pH value with the actual preset intermediate pH value, and determine a second total intermediate replenishment solution amount required to reach the target pH value based on the total replenishment amount and the comparison result, and control the replenishing unit to replenish the liquid;

[0053] Stir the solution in the electrochemical cell during the replenishing process to make the solution in the electrochemical cell reach the target solution volume and the target pH value.

[0054] In this embodiment, by comparing the current pH value with the preset target pH value, after calculating the required ion concentration, an intermediate pH value is set between the current pH value and the target pH value, and the amount of solution added when reaching the preset intermediate pH value is judged. The remaining amount of solution to be added is calculated based on the target solution amount and the amount of solution already added, and the corresponding liquid replenishment mechanism is controlled to perform corresponding actions, thereby realizing the automatic control of the operation of the entire liquid replenishment mechanism, being able to reach the required solution amount when reaching the required pH value, effectively avoiding the problems of excessive or insufficient solution amount, shortening the time required for liquid replenishment, and improving production efficiency.

[0055] In this embodiment, one or more preset intermediate pH values can be set. Multiple preset intermediate pH values can be set to control the amount of solution replenished when the electrochemical solution reaches each concentration gradient, so as to perform multiple fine-tunings, thereby realizing more precise liquid replenishment, achieving more precise control of the liquid replenishment mechanism, and thus reaching the corresponding ion concentration and solution amount.

[0056] It should be noted that in this embodiment, the preset intermediate pH value is the value preset in the controller, which is located between the current pH value and the target pH value. In the specific implementation, the preset intermediate pH value can be input manually. For example, two or more average concentration gradients can be set between the current pH value and the target pH value, or they can be set randomly. The effect of the evenly set concentration gradients is better.

[0057] Exemplarily, if the pH difference is 2, 1 intermediate pH value, 3 intermediate pH values, or 4 intermediate pH values can be set between 0 and 2, and the number of intermediate pH values is controlled according to actual requirements.

[0058] In an exemplary embodiment, respectively determining the total replenishment amounts of the electrochemical solution and the dilution solution in the electrochemical cell includes:

[0059] Comparing the current solution amount with the target solution amount to obtain the total amount of solution to be replenished;

[0060] Comparing the current pH value with the target pH value to determine the concentration difference between the current ion concentration and the target ion concentration;

[0061] Determining the total replenishment amount of the electrochemical solution according to the concentration difference;

[0062] Determining the total replenishment amount of the dilution solution according to the total replenishment amount of the electrochemical solution and the total amount of solution to be replenished.

[0063] In this embodiment, after determining the concentration difference between the current ion concentration and the target ion concentration of the ions, the total replenishment amount of the required electrochemical solution can be determined according to the concentration difference. After determining the total replenishment amount of the electrochemical solution, the total replenishment amount of the dilution solution can be obtained through the liquid level difference and the total replenishment amount of the electrochemical solution.

[0064] In one exemplary embodiment, after obtaining the total amount of the required replenishment solution, the method further includes:

[0065] Determine the actual volume of the precipitate according to the electrochemical reaction;

[0066] Determine the first liquid level value in the current electrochemical cell according to the current solution volume and the actual volume of the precipitate;

[0067] Obtain the second liquid level value in the electrochemical cell after the filtration cycle, and determine the volume of the precipitate in the electrochemical cell according to the second liquid level value and the first liquid level value;

[0068] If the total amount of the required replenishment solution added is less than the preset maximum liquid level value, perform the liquid replenishment operation;

[0069] If the total amount of the required replenishment solution added is greater than the preset maximum liquid level value, perform the filtration cycle again.

[0070] In this embodiment, since solid precipitates are generated during the electrochemical reaction, even if they are filtered and recycled into the electrochemical cell, the solution inside the electrochemical cell cannot be completely pumped out in actual situations, and there is still a situation where residual precipitates remain in the electrochemical cell. Therefore, the actual amount of the solution in the electrochemical cell body 1 is less than the amount determined by the sensor (such as a liquid level gauge). It is necessary to calculate the volume of the precipitates remaining in the electrochemical cell after the filtration cycle. 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 the filtration needs to be performed again for cyclic verification until the volume of the precipitates in the electrochemical cell meets the requirements, and then the liquid replenishment operation can be controlled.

[0071] It should be noted that in this embodiment, the total amount of the required replenishment solution:

[0072] V3 = V0 - V1 - V2

[0073] Wherein, V3 is the total amount of the required replenishment solution, V0 is the target solution volume, V1 is the solution volume in the electrochemical cell after the reaction, and V2 is the actual volume of the precipitate.

[0074] It should also be noted that in this embodiment, the total replenishment amount of the electrochemical solution:

[0075] V4 = V3(C0 - C2) / C1;

[0076] Among them, V4 is the total amount of replenishment of the electrochemical solution, C0 is the target concentration, C1 is the ion concentration of the electroplating replenishing solution, C2 is the ion concentration of the solution in the electrochemical cell after filtration and circulation. According to the total amount of replenishment liquid and the total amount of replenishment of the electrochemical solution, the total amount of replenishment V5 of the dilution solution can be obtained as V5 = V3 - V4; if

[0077] V4 + V5 + (V2 - V1) > V6;

[0078] Then filter and circulate again, where V6 is the preset liquid value; if

[0079] V4 + V5 + (V2 - V1) < V6;

[0080] Then perform the replenishment operation.

[0081] In an exemplary embodiment, the method for determining the total amount of the first intermediate replenishment solution that satisfies the preset intermediate pH value between the current solution amount and the target solution amount includes:

[0082] Establish one or more preset intermediate pH values between the current pH value and the target pH value and determine the intermediate ion concentration according to the preset intermediate pH value;

[0083] Calculate the ion concentration difference according to the current pH value and the preset intermediate pH value, and determine the first intermediate replenishment amount of the electrochemical solution according to the ion concentration difference;

[0084] Determine the first intermediate replenishment amount of the dilution solution based on the proportional relationship between the first intermediate replenishment amount of the electrochemical solution and the total replenishment amount of the electrochemical solution and the dilution solution;

[0085] Determine the total amount of the first intermediate replenishment solution according to the first intermediate replenishment amount of the electrochemical solution and the first intermediate replenishment amount of the dilution solution.

[0086] In this embodiment, after adding the first intermediate replenishment amount of the electrochemical solution, it is necessary to add the first intermediate replenishment amount of the dilution solution correspondingly according to the ratio of the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical cell calculated to meet the volume requirement.

[0087] It should be noted that in this embodiment, 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:

[0088] Determine the intermediate ion concentration after adding the total amount of the first intermediate replenishment solution according to the preset intermediate pH value, and determine the intermediate concentration difference between the intermediate ion concentration and the target ion concentration;

[0089] Determine the second intermediate replenishment amount of the electrochemical solution according to the intermediate concentration difference;

[0090] Determine the 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;

[0091] Determine the total amount of the second intermediate replenishment solution based on the second intermediate replenishment amount of the electrochemical solution and the second intermediate replenishment amount of the dilution solution.

[0092] The present invention also provides an electrochemical cell replenishment system, which includes a storage module, a detection module, a calculation module, a control module, an execution unit, and a human-machine interaction module;

[0093] Among them, the storage module is used to store the set parameters for the electrochemical reaction. The set parameters include the sediment thickness, 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 sediment thickness is the thickness of the ions deposited on the sheet during the reaction. The sediment thickness can be adjusted according to the type of sheet production. Therefore, each sediment thickness parameter corresponds to a deposition time, an ion concentration of the electrochemical solution, and a target pH value.

[0094] The detection module is used to detect the pH value and the liquid level information in the electrochemical cell.

[0095] 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 to obtain the ion concentration difference, so as to calculate the total amount of the electrochemical solution to be replenished and the total amount of the dilution solution to be replenished.

[0096] The control module is used to control the operation of the filtration and circulation device, and is also used to control the replenishment unit to replenish the electrochemical cell according to the calculation module.

[0097] The execution unit is the electrochemical solution tank 19 and the dilution solution tank 18, which are controlled by the control module to control the liquid output amount and the liquid output rate.

[0098] The human-machine interaction module is used to select the sediment thickness, and the system automatically selects the set parameters according to the sediment thickness.

[0099] The above modules and the execution unit all perform information processing and execute corresponding actions through the central processing unit.

[0100] The present invention also provides an electrochemical cell device, which applies the above-mentioned electrochemical cell replenishment method, and includes:

[0101] The cell body 1, and a blowing pipe 2 is provided at the bottom of the cell body 1. The blowing pipe 2 includes an outer layer pipe 201 and an inner layer pipe 204. A first air guiding block 202 is provided on the outer layer pipe 201, and a plurality of second air guiding blocks 205 are provided on the inner layer pipe 204. The air guiding direction of the first air guiding block 202 is set clockwise, and the air guiding direction of the second air guiding block 205 is set counterclockwise;

[0102] Liquid replenishment mechanism. The liquid replenishment mechanism includes a liquid replenishment tank and a liquid guiding component. The liquid replenishment tank is used to replenish the solution into the tank 1, and the liquid guiding component is arranged on one side of the tank 1 close to the liquid replenishment tank. The liquid guiding component is used to disperse the replenished solution into the electrochemical cell;

[0103] Filtration and circulation mechanism, arranged outside the tank 1. The input end of the filtration and circulation mechanism is connected to the inside of the tank 1, and is used to filter the solution in the tank 1 and then enter the tank 1 again.

[0104] In this embodiment, through the provided electrochemical cell, the solution entering the tank 1 can be shunted, so that the added solution is dispersed, increasing the contact surface with the original solution in the tank 1, and effectively avoiding the uneven local concentration in the tank 1.

[0105] In this embodiment, by dividing the original solution in the tank 1 into an inner layer and an outer layer, when the air blowing pipe 2 blows air, 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 fully contact with each other to achieve uniform mixing, avoiding the problem of uneven local ion concentration.

[0106] It should be noted that, as Figure 4 shown, the air blowing pipe 2 in this embodiment is arranged in a "return" shape. The part located in the outer circle is the outer layer pipe 201, and the part located in the inner circle is the inner layer pipe 204. A plurality of first air holes are arranged on the outer circle, and first air guiding blocks 202 are arranged on each first air hole. First air guiding holes 203 are provided on the first air guiding blocks 202. A plurality of second air holes are arranged on the inner circle, and second air guiding blocks 205 are arranged on each second air hole. Second air guiding holes 206 are provided on the second air guiding blocks 205. And the first air guiding holes 203 in the first air guiding blocks 202 are arranged in a clockwise direction as a whole, and the second air guiding holes 206 in the second air guiding blocks 205 are arranged in a counterclockwise direction as a whole. Therefore, when the air pipe is ventilated, the air flow will push the liquid in the electrochemical cell to rotate clockwise after coming out of the first air guiding holes 203, and the air flow will push the liquid in the electrochemical cell to rotate counterclockwise after coming out of the second air guiding holes 206, fully stirring the solution rotating counterclockwise in the inner layer and the replenished solution in the outer layer, so that the solution concentrations at various places reach consistency.

[0107] It should also be noted that in this embodiment, both the first air guiding holes 203 and the second air guiding holes 206 have an elevation angle. Therefore, when the outer layer solution forms a clockwise swirl and the inner layer solution forms a counterclockwise swirl for uniform mixing, the set elevation angle can also push the lower layer solution to move towards the upper layer solution in the height direction to achieve the ion balance of the solution in the electrochemical cell in the height direction during the liquid replenishment process.

[0108] 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 blower. The blower can blow air into the air blowing pipe 2 to provide a positive pressure, and the gas is blown out from the first air guide holes 203 and the second air guide holes 206.

[0109] In an exemplary embodiment, the liquid guiding assembly includes a liquid guiding plate 8 and a liquid guiding block 9. The liquid guiding plate 8 extends horizontally along the inner wall of the tank 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 tank body 1 and the liquid guiding plate 8. The liquid guiding block 9 is provided with a liquid guiding groove 901 which extends along the length direction of the liquid guiding plate 8. A communication 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, and the liquid guiding holes 902 penetrate through the liquid guiding block 9 and communicate with the communication groove 903.

[0110] In the prior art, the supplementary electrochemical liquid and the dilution solution are directly introduced into the electrochemical cell mainly through pipelines, resulting in a high ion concentration at the corresponding part of the pipeline and forming a situation of uneven local concentration. In this embodiment, through the provided liquid guiding assembly, the supplementary liquid entering the electrochemical cell can be dispersed, the contact area between the supplementary liquid and the original solution in the electrochemical cell is increased, the balance of the concentration is improved, and the local concentration difference is avoided.

[0111] 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.

[0112] Exemplarily, a liquid preparation chamber 3 is further provided in this embodiment. The liquid preparation chamber 3 is connected to a liquid replenishment tank. The liquid preparation chamber 3 is arranged on the outer side 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 fixed amount of liquid into the liquid preparation chamber 3 and mix them evenly, a liquid outlet pipe 7 is provided at the bottom of the liquid preparation chamber 3, and a pressure valve 6 is arranged on the liquid outlet pipe 7. The pressure valve 6 is controlled by the control module. After reaching the required pH value, 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 and is directly opposite to the liquid guiding groove 901. When the supplementary liquid flows out from the port of the liquid outlet pipe 7, most of the liquid enters the liquid guiding groove 901 and flows along the extending direction of the liquid guiding groove 901 in the liquid guiding groove 901, and flows to the bottom from the plurality of liquid guiding holes 902 opened on the liquid guiding groove 901. The excess supplementary liquid in the liquid guiding groove 901 will overflow and finally be guided to the liquid guiding plate 8 along the arc surface of the liquid guiding block 9, realizing the liquid guiding function, 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.

[0113] It is worth noting that in this embodiment, a secondary liquid level gauge 5 and a secondary pH meter can be arranged in the liquid preparation chamber 3 and electrically connected to the detection module. After reaching the required ion concentration, the liquid outlet pipe 7 can be opened to replenish liquid into the tank body 1.

[0114] It should also be noted that in this embodiment, a stirring unit can also be provided in the liquid preparation chamber 3 to stir the supplemented electrochemical liquid and dilution solution, facilitating detection by the auxiliary pH meter.

[0115] In an exemplary embodiment, the liquid guide plate 8 includes a first guiding portion 10 and a second guiding portion 11. The second guiding portion 11 is integrally provided with the first guiding portion 10 and is inclined between the second guiding portion 11 and the first guiding portion 10. The included angle between the second guiding portion 11 and the horizontal direction is greater than the included angle between the first guiding portion 10 and the horizontal direction. A first guiding groove 1001 communicating with the communication groove 903 is provided on the first guiding portion 10, and a second guiding groove communicating with the first guiding groove 1001 is provided on the second guiding portion 11.

[0116] It is worth noting that in this embodiment, since the electrode sheet needs to be placed in the tank 1 in an environment where the solution is static for electrochemical reaction, the method of adding the solution is to add the liquid in a way of first fast and then slow. Specifically, the control module controls the opening and closing size of the pressure valve 6 according to the amount of the replenishing liquid sensed by the first liquid level gauge. When starting to replenish the liquid, the pressure is large. When the subsequent replenishing liquid gradually decreases, the pressure provided by the pressure valve 6 gradually decreases. When the pressure is large, the flow rate is more. Due to the greater pressure, the replenishing liquid directly enters the inside of the tank 1 from the first guiding portion 10 when flowing out from the liquid guide plate 8. At this time, the liquid impact force is also greater, and it can fully contact the solution in the tank 1. When the pressure of the replenishing liquid gradually decreases, the flow rate synchronously decreases. The replenishing liquid does not directly flow into the tank 1 from the first guiding portion 10, but will flow into the second guiding groove from the first guiding groove 1001 and enter the tank 1 through the guiding action of the second guiding groove. Specifically, the first guiding portion 10 is located above the liquid level, and the bottom end of the second guiding portion 11 is always located below the liquid level. When guiding through the second guiding portion 11, the replenishing liquid enters the tank 1 from below the liquid level to reduce the disturbance of the replenishing liquid to the liquid level. Synchronously, the blowing pressure in the blowing pipe 2 will synchronously decrease following the liquid replenishing situation, and the stirring will be immediately stopped after the liquid replenishing is completed to reduce the continuous disturbance of the stirring to the liquid level.

[0117] It should also be noted that in this embodiment, the total amount of the solution in the tank 1 is always lower than the liquid outlet end of the liquid outlet pipe 7 to prevent the solution in the tank 1 from entering the liquid outlet pipe 7.

[0118] In an exemplary embodiment, the filtration and circulation mechanism includes a filter 14 and a temporary storage tank 15. The input end of the filter 14 is provided with a liquid extraction pipe communicating with the inside of the tank 1. A connecting pipe is provided on the blowing pipe 2, and the free end of the connecting pipe is communicated with the liquid extraction pipe. The filter 14 can be used to extract the liquid in the tank 1 into the temporary storage tank 15, and a circulation pipe is provided on the temporary storage tank 15 for introducing the solution in the temporary storage tank 15 into the tank 1.

[0119] In this embodiment, the filtering and circulating mechanism is used to filter the solution after the reaction in the tank body 1, filter out most of the precipitates, and the temporarily stored tank 15 can pump out all the solution in the tank body 1 and then introduce it into the tank body 1, so as to achieve complete filtration.

[0120] Exemplarily, in this embodiment, a liquid extraction pipe is provided at the input end of the filter 14, which can pump out the solution in the tank body 1. An auxiliary pipe 13 is provided near the free end of the air extraction pipe. The auxiliary pipe 13 passes through the bottom of the tank body 1 and is connected to the liquid extraction pipe. The two pipes are specifically connected through a three-way joint. During the filtering and circulating process, the air blowing pipe 2 and the filter 14 are opened synchronously. The air blowing pipe 2 can stir the solution in the tank body 1 to prevent the precipitate from depositing at the bottom of the tank body 1, and at the same time, it can blow the precipitate that may enter the air blowing pipe 2 into the auxiliary pipe 13. The pump structure on the filter 14 enables the liquid extraction pipe to extract the solution in the tank body 1, and the provided auxiliary pipe 13 can synchronously increase the amount of the solution in the tank body 1 entering the filter 14, improving the liquid extraction efficiency.

[0121] It should be noted that the circulating pipe in this embodiment includes a main pipe 16 and a plurality of liquid distribution pipes 17 provided on the main pipe 16. The output end of the liquid distribution pipe 17 is aligned with the inside of the tank body 1. The main pipe 16 is used to export the solution inside the temporarily stored tank 15, and the liquid distribution pipe 17 is used to improve the efficiency of introducing the solution into the tank body 1.

[0122] In an exemplary embodiment, a plurality of main pH meters are provided in the tank body 1, and the plurality of main pH meters are located at different heights in the tank body 1. A main liquid level meter 21 is provided in the tank body 1.

[0123] In this embodiment, the plurality of main pH meters provided can monitor the pH values at different positions in the tank body 1, thereby measuring the local ion concentration and judging whether the stirring is uniform. The main liquid level meter 21 is used to monitor the liquid level height in the tank body 1, reflect the amount of the solution, and feed it back to the detection module.

[0124] The present invention also provides a device, which includes:

[0125] One or more processors and a memory,

[0126] A computer program is stored on the memory. When the one or more processors execute the computer program, the device executes the above-mentioned method.

[0127] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When executed by one or more processors, the device executes the above-mentioned method.

[0128] In summary, by detecting the ion concentration, the present invention realizes the automatic replenishment of the replenishment unit into the electrochemical cell, and sets an intermediate concentration gradient during the replenishment process to ensure that the replenished solution can reach the corresponding ion concentration when reaching the set amount. At the same time, through the provided electrochemical cell replenishment device, the solution added into the cell 1 can be evenly mixed with the original solution in the cell 1, effectively avoiding the situation of uneven local ion concentration inside the cell 1 and improving the product quality.

[0129] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An electrochemical tank refilling system, characterized in that: include: A storage module, used for storing the set parameters of the electrochemical reaction; Detection module, used to detect pH value and liquid level information in the electrochemical tank; 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. A control module, used for controlling a liquid replenishing unit to replenish liquid into the electrochemical tank according to the calculation module; The detection module obtains the current solution volume and the current pH value of the solution in the electrochemical tank, and based on the current solution volume, the current pH value and the preset target solution volume and target pH value, the calculation module determines the total replenishment amount of the electrochemical solution and the dilution solution in the electrochemical tank respectively; The calculation module establishes one or more preset intermediate pH values ​​between the current pH value and the target pH value based on the current solution volume and the target solution volume, and determines the intermediate ion concentration according to the preset intermediate pH values; The calculation module calculates an ion concentration difference according to a current pH value and a preset intermediate pH value, and determines a first intermediate replenishment amount of the electrochemical liquid according to the ion concentration difference; The calculation module determines 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; The control module determines the total amount of the first intermediate replenishment solution according to the first intermediate replenishment amount of the electrochemical solution and the first intermediate replenishment amount of the dilution solution, and controls the replenishment unit to replenish the solution; The control module controls the execution unit to stir the solution in the electrochemical tank during the rehydration process, and obtains the actual preset intermediate pH value after the stirring is performed for a preset time; The calculation module compares the preset intermediate pH value with the actual preset intermediate pH value, determines the intermediate ion concentration after the total amount of the first intermediate supplement solution is added according to the preset intermediate pH value, and determines the intermediate concentration difference between the intermediate ion concentration and the target ion concentration; The calculation module determines a second intermediate replenishment amount of the electrochemical liquid according to the intermediate concentration difference; The calculation module determines 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; The calculation module determines the total amount of the second intermediate replenishment solution according to the second intermediate replenishment amount of the electrochemical solution and the second intermediate replenishment amount of the dilution solution, and the control module controls the replenishment unit to replenish the solution; The control module controls the execution unit to stir the solution in the electrochemical tank during the liquid replenishment process so that the solution in the electrochemical tank reaches a target solution volume and a target pH value.

2. The electrochemical tank refilling system according to claim 1, characterized in that: The calculation module compares the current solution volume with the target solution volume to obtain the total amount of supplementary solution required; The calculation module compares the current pH value with the target pH value to determine the concentration difference between the current ion concentration and the target ion concentration; The calculation module determines the total replenishment amount of the electrochemical liquid according to the concentration difference; The calculation module determines the total replenishment amount of the dilution solution according to the total replenishment amount of the electrochemical solution and the total amount of replenishment solution required.

3. The electrochemical tank refilling system according to claim 1, characterized in that: Also included is an electrochemical cell device comprising: 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.

4. The electrochemical tank refilling system according to claim 3, 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.

5. The electrochemical tank refilling system according to claim 4, 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.

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