Electrolytic cell temperature control method and device, storage medium and electronic equipment

Abstract

The present disclosure relates to a method and device for controlling temperature of an electrolytic cell, a storage medium and an electronic device, and relates to the technical field of hydrogen production by water electrolysis. The method comprises: obtaining a power supply parameter of the electrolytic cell, a first outlet temperature of the electrolytic cell, an ambient temperature and an electrolyte flow rate flowing into the electrolytic cell; determining a target adjustment heat corresponding to the electrolytic cell according to the power supply parameter, the first outlet temperature and the ambient temperature; determining a first target temperature of the electrolyte flowing into the electrolytic cell according to the electrolyte flow rate and the target adjustment heat; and adjusting an opening degree of a cooling medium adjusting valve according to the first target temperature to adjust a flow rate of the cooling medium, so that the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature, the cooling medium being used to adjust the temperature of the electrolyte. In this way, the temperature of the electrolyte can be adjusted in a timely manner according to fluctuations in hydrogen production power, and the electrolytic cell can be kept at a suitable working temperature to maximize the operating performance and operating efficiency of the electrolytic cell.

Description

Technical Field

[0001] This disclosure relates to the field of water electrolysis for hydrogen production technology, and more specifically, to a method, apparatus, storage medium, and electronic equipment for controlling the temperature of an electrolyzer. Background Technology

[0002] With the continuous development of new energy technologies, the preparation of hydrogen, as a new energy source, has received much attention. Currently, hydrogen is often produced through water electrolysis.

[0003] In current preparation methods, a preset temperature for the alkaline solution entering the electrolyzer is established, and this temperature is monitored during the preparation process. If the alkaline solution temperature does not meet the preset value, the flow rate of cooling water is controlled by adjusting the cooling valve to bring the alkaline solution back to the preset temperature. However, since the adjustment process generally takes a considerable amount of time, the temperature inside the electrolyzer has already changed during this period. The temperature inside the electrolyzer significantly impacts its operating efficiency and performance. Therefore, this control method exhibits a certain degree of lag and cannot guarantee the optimal operating performance of the electrolyzer. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides a method, apparatus, storage medium, and electronic device for controlling the temperature of an electrolytic cell.

[0005] According to a first aspect of the present disclosure, a method for controlling the temperature of an electrolytic cell is provided. The method includes: acquiring power supply parameters of the electrolytic cell, a first outlet temperature of the electrolytic cell, an ambient temperature, and an electrolyte flow rate flowing into the electrolytic cell; determining a target adjustment heat corresponding to the electrolytic cell based on the power supply parameters, the first outlet temperature, and the ambient temperature; determining a first target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target adjustment heat; and adjusting the opening of a cooling medium regulating valve based on the first target temperature to regulate the flow rate of the cooling medium, such that the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature, wherein the cooling medium is used to regulate the temperature of the electrolyte.

[0006] Optionally, determining the target adjustment heat corresponding to the electrolytic cell based on the power supply parameters, the first outlet temperature, and the ambient temperature includes: determining the target heat generation of the electrolytic cell within a future preset time period based on the power supply parameters; determining the heat dissipation of the electrolytic cell based on the first outlet temperature and the ambient temperature; and determining the target adjustment heat based on the target heat generation and the heat dissipation.

[0007] Optionally, the power supply parameters include power supply voltage and power supply current. Determining the target heat generation of the electrolytic cell within a future preset time period based on the power supply parameters includes: determining the number of reaction chambers in the electrolytic cell and the preset decomposition voltage corresponding to each reaction chamber; determining the target voltage based on the power supply voltage, the number of chambers, and the preset decomposition voltage; the target voltage being a voltage capable of generating heat in the electrolytic cell; and determining the target heat generation based on the target voltage and the power supply current.

[0008] Optionally, determining the first target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target adjustment heat includes: determining the target temperature difference corresponding to the electrolytic cell based on the electrolyte flow rate and the target adjustment heat; determining the first preset outlet temperature corresponding to the electrolytic cell; and determining the first target temperature based on the target temperature difference and the first preset outlet temperature.

[0009] Optionally, the method further includes: obtaining a second outlet temperature of the electrolytic cell; if the second outlet temperature is not equal to a second preset outlet temperature, repeatedly performing a temperature adjustment step until the second outlet temperature is equal to the second preset outlet temperature; the temperature adjustment step includes: determining a second target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the first target temperature, the second outlet temperature, and the second preset outlet temperature; adjusting the opening of the cooling medium regulating valve according to the second target temperature to regulate the flow rate of the cooling medium, so that the temperature of the electrolyte flowing into the electrolytic cell reaches the second target temperature; if a preset cycle time has elapsed since the time elapsed between adjusting the opening of the cooling medium regulating valve according to the second target temperature, obtaining a third outlet temperature of the electrolytic cell; if the third outlet temperature is not equal to the second preset outlet temperature, using the third outlet temperature as the new second outlet temperature, and using the second target temperature as the new first target temperature.

[0010] Optionally, determining the second target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the first target temperature, the second outlet temperature, and the second preset outlet temperature includes: determining the temperature difference between the second outlet temperature and the second preset outlet temperature; and determining the second target temperature based on the first target temperature and the temperature difference.

[0011] Optionally, determining the second target temperature based on the first target temperature and the temperature difference includes: determining the second target temperature based on the first target temperature and a first preset temperature when the temperature difference is greater than or equal to a preset difference; or determining the second target temperature based on the first target temperature and a second preset temperature when the temperature difference is less than the preset difference.

[0012] According to a second aspect of the present disclosure, an electrolytic cell temperature control device is provided, the device comprising:

[0013] The first acquisition module is used to acquire the power supply parameters of the electrolytic cell, the first outlet temperature of the electrolytic cell, the ambient temperature, and the flow rate of the electrolyte flowing into the electrolytic cell.

[0014] The first determining module is used to determine the target adjustment heat corresponding to the electrolytic cell based on the power supply parameters, the first outlet temperature and the ambient temperature;

[0015] The second determining module is used to determine the first target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target adjustment heat.

[0016] The first regulating module is used to adjust the opening of the cooling medium regulating valve according to the first target temperature, so as to regulate the flow rate of the cooling medium and make the temperature of the electrolyte flowing into the electrolytic cell reach the first target temperature. The cooling medium is used to regulate the temperature of the electrolyte.

[0017] Optionally, the first determining module is configured to determine, based on the power supply parameters, the target heat generation of the electrolytic cell within a future preset time period; determine the heat dissipation of the electrolytic cell based on the first outlet temperature and the ambient temperature; and determine the target adjustment heat based on the target heat generation and the heat dissipation.

[0018] Optionally, the first determining module is used to determine the number of reaction chambers in the electrolytic cell and the preset decomposition voltage corresponding to each reaction chamber; determine a target voltage based on the power supply voltage, the number of chambers, and the preset decomposition voltage; the target voltage is a voltage that can generate heat in the electrolytic cell; and determine the target heat generation based on the target voltage and the power supply current.

[0019] Optionally, the second determining module is configured to determine the target temperature difference corresponding to the electrolytic cell based on the electrolyte flow rate and the target adjustment heat; determine the first preset outlet temperature corresponding to the electrolytic cell; and determine the first target temperature based on the target temperature difference and the first preset outlet temperature.

[0020] Optionally, the device further includes:

[0021] The second acquisition module is used to acquire the second outlet temperature of the electrolytic cell;

[0022] The second adjustment module, when the second outlet temperature is not equal to the second preset outlet temperature, cyclically executes the temperature adjustment steps until the second outlet temperature is equal to the second preset outlet temperature;

[0023] The temperature regulation steps include:

[0024] Based on the first target temperature, the second outlet temperature, and the second preset outlet temperature, determine the second target temperature corresponding to the electrolyte flowing into the electrolytic cell;

[0025] According to the second target temperature, the opening of the cooling medium regulating valve is adjusted to regulate the flow rate of the cooling medium so that the temperature of the electrolyte flowing into the electrolytic cell reaches the second target temperature.

[0026] If the time between adjusting the opening of the cooling medium regulating valve according to the second target temperature and the preset cycle time is reached, the third outlet temperature of the electrolytic cell is obtained.

[0027] If the third outlet temperature is not equal to the second preset outlet temperature, the third outlet temperature is taken as the new second outlet temperature, and the second target temperature is taken as the new first target temperature.

[0028] Optionally, determining the second target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the first target temperature, the second outlet temperature, and the second preset outlet temperature includes: determining the temperature difference between the second outlet temperature and the second preset outlet temperature; and determining the second target temperature based on the first target temperature and the temperature difference.

[0029] Optionally, determining the second target temperature based on the first target temperature and the temperature difference includes: determining the second target temperature based on the first target temperature and a first preset temperature when the temperature difference is greater than or equal to a preset difference; or determining the second target temperature based on the first target temperature and a second preset temperature when the temperature difference is less than the preset difference.

[0030] According to a third aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps of the electrolytic cell temperature control method provided in the first aspect of the present disclosure.

[0031] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising: a memory storing a computer program thereon; and a processor for executing the computer program in the memory to implement the steps of the electrolytic cell temperature control method provided in the first aspect of the present disclosure.

[0032] The above technical solution involves first obtaining the power supply parameters of the electrolytic cell, the first outlet temperature of the electrolytic cell, the ambient temperature, and the electrolyte flow rate into the electrolytic cell. Then, based on the power supply parameters, the first outlet temperature, and the ambient temperature, the target adjustment heat for the electrolytic cell is determined. Next, based on the electrolyte flow rate and the target adjustment heat, the first target temperature of the electrolyte flowing into the electrolytic cell is determined. Finally, based on the first target temperature, the opening of the cooling medium regulating valve is adjusted to regulate the flow rate of the cooling medium, ensuring that the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature. The cooling medium is used to regulate the electrolyte temperature. This method allows for the prediction of the amount of heat (target adjustment heat) that needs to be carried away by the electrolyte in the electrolytic cell over a future period, based on the power supply parameters, the first outlet temperature, and the ambient temperature. Then, based on the target adjustment heat and the electrolyte flow rate, the first target temperature that meets the temperature requirements of the electrolytic cell can be determined. Finally, based on the first target temperature, the opening of the cooling medium regulating valve is adjusted to ensure that the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature. In this way, the temperature of the electrolyte can be adjusted in a timely manner according to the fluctuation of hydrogen production power, so as to ensure that the electrolyzer is at a suitable operating temperature and maximize the operating performance and efficiency of the electrolyzer.

[0033] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a diagram illustrating a water electrolysis hydrogen production system according to an exemplary embodiment;

[0036] Figure 2 This is a flowchart illustrating a method for controlling the temperature of an electrolytic cell according to an exemplary embodiment;

[0037] Figure 3 This is a flowchart illustrating another method for controlling the temperature of an electrolytic cell according to an exemplary embodiment;

[0038] Figure 4 This is a flowchart illustrating another method for controlling the temperature of an electrolytic cell according to an exemplary embodiment;

[0039] Figure 5 This is a flowchart illustrating another method for controlling the temperature of an electrolytic cell according to an exemplary embodiment;

[0040] Figure 6 This is a block diagram illustrating a temperature control device for an electrolytic cell according to an exemplary embodiment;

[0041] Figure 7 This is a block diagram illustrating another electrolytic cell temperature control device according to an exemplary embodiment;

[0042] Figure 8 This is a block diagram illustrating an electronic device according to an exemplary embodiment.

[0043] Explanation of reference numerals in the attached figures

[0044] 100-Electrolytic cell; 101-Alkali heat exchanger; 110-Alkali flow meter; 111-Alkali temperature sensor; 112-Alkali circulation pump; 113-Oxygen side temperature sensor; 115-Oxygen side separator; 116-Hydrogen side separator; 121-Oxygen side regulating valve; 122-Hydrogen side regulating valve; 123-Cooling medium regulating valve. Detailed Implementation

[0045] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0046] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily construed as referring to a specific order or sequence. Furthermore, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same elements.

[0047] In the description of this disclosure, unless otherwise stated, "multiple" means two or more, and other quantifiers are similar; "at least one," "one or more," or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one 'a' can represent any number of 'a's; as another example, one or more of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0048] Before introducing the electrolytic cell temperature control method, apparatus, storage medium and electronic equipment provided in this disclosure, the application scenarios involved in the various embodiments of this disclosure will be introduced first. Figure 1 This is a diagram illustrating a water electrolysis hydrogen production system according to an exemplary embodiment. Figure 1 As shown, the water electrolysis hydrogen production system includes an electrolyzer 100, an alkaline heat exchanger 101, an alkaline flow meter 110, an alkaline temperature sensor 111, an alkaline circulation pump 112, an oxygen-side temperature sensor 113, an oxygen-side separator 115, a hydrogen-side separator 116, an oxygen-side regulating valve 121, a hydrogen-side regulating valve 122, and a cooling medium regulating valve 123.

[0049] The flow rate of the cooling medium can be adjusted by the cooling medium regulating valve 123, which in turn changes the temperature of the alkaline solution flowing through the alkaline solution heat exchanger 101. The alkaline solution circulation pump 112 controls the flow rate of the alkaline solution flowing into the electrolytic cell 100, the alkaline solution temperature sensor 111 detects the temperature of the alkaline solution flowing into the electrolytic cell 100, and the alkaline solution flow meter 110 detects the flow rate of the alkaline solution flowing into the electrolytic cell 100. In the electrolytic cell 100, electrical energy is used to decompose water into hydrogen and oxygen, which are then output in two separate streams. The temperature of the oxygen outlet of the electrolytic cell can be detected by the oxygen-side temperature sensor 113. Hydrogen and oxygen can be separated by the oxygen-side separator 115 and the hydrogen-side separator 116, respectively, and the output pressures of hydrogen and oxygen can be further adjusted by the oxygen-side regulating valve 121 and the hydrogen-side regulating valve 122, respectively.

[0050] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0051] Figure 2 This is a flowchart illustrating a method for controlling the temperature of an electrolytic cell according to an exemplary embodiment, such as... Figure 2 As shown, the method may include the following steps:

[0052] In step S101, the power supply parameters of the electrolytic cell, the first outlet temperature of the electrolytic cell, the ambient temperature, and the flow rate of the electrolyte flowing into the electrolytic cell are obtained.

[0053] The power supply parameters may include the electrolyzer's power supply current I and power supply voltage U. For example, these can be acquired through a power supply system or a current and voltage detection circuit. The first outlet temperature of the electrolyzer can be understood as the temperature of the electrolyzer, which can be obtained by detecting the temperature of the gas flowing out of the electrolyzer. For example, the temperature at any point on the pipeline from the hydrogen outlet of the electrolyzer to the hydrogen-side gas-liquid separator, or the temperature at any point on the pipeline from the oxygen outlet of the electrolyzer to the oxygen-side gas-liquid separator, can be detected. In practical scenarios, since the temperature on the oxygen side is often higher than the temperature on the hydrogen side, it can be obtained through... Figure 1 The oxygen-side temperature sensor 113 is used to obtain the first outlet temperature of the electrolyzer; that is, the temperature value collected by the oxygen-side temperature sensor 113 is taken as the first outlet temperature. The ambient temperature can be obtained by a temperature sensor. In this embodiment, the electrolyte may include, for example, an alkaline solution, such as 30% KOH. The electrolyte flow rate can be, for example, determined by... Figure 1 The alkaline flow meter 110 is used to detect it.

[0054] In step S102, the target adjustment heat corresponding to the electrolytic cell is determined based on the power supply parameters, the first outlet temperature, and the ambient temperature.

[0055] The target adjustment heat can be understood as the heat that the electrolyte needs to carry away from the electrolyzer over a period of time in order to keep the temperature inside the electrolyzer within a certain range, thereby maximizing the working efficiency of the electrolyzer.

[0056] For example, the target heat generation of the electrolyzer over a future period can be determined first based on the power supply parameters, i.e., the predicted heat that the electrolyzer will theoretically generate within time t. Then, the heat dissipation of the electrolyzer can be determined based on the first outlet temperature and the ambient temperature. Afterward, based on the target heat generation and heat dissipation, the heat that needs to be carried away by the electrolyte, i.e., the target adjustment heat, can be determined.

[0057] In step S103, the first target temperature corresponding to the electrolyte flowing into the electrolytic cell is determined based on the electrolyte flow rate and the target adjustment heat.

[0058] For example, the temperature that the electrolyzer needs to be adjusted for over a future period of time (i.e., the target temperature difference) can be determined based on the electrolyte flow rate and the target adjustment heat. In other words, the temperature value that the electrolyzer needs to be raised or lowered can be determined. Then, based on this target temperature difference, the first target temperature corresponding to the electrolyte flowing into the electrolyzer can be determined.

[0059] In step S104, the opening of the cooling medium regulating valve is adjusted according to the first target temperature.

[0060] In this step, the cooling medium regulating valve (e.g.) can be adjusted. Figure 1 The opening degree of the cooling medium regulating valve 123) is adjusted to regulate the flow rate of the cooling medium, so that the temperature of the electrolyte flowing into the electrolytic cell can reach the first target temperature. The cooling medium is used to regulate the temperature of the electrolyte. The cooling medium can be a liquid or a gas, and this disclosure does not specifically limit it. In this way, the temperature of the electrolyte can be pre-adjusted before further temperature fluctuations occur within the electrolytic cell, ensuring that the temperature within the electrolytic cell is maintained at a suitable level.

[0061] For example, if the first target temperature is greater than the temperature of the electrolyte flowing into the inlet of the electrolyzer at the current moment (e.g., by means of...), Figure 1If the electrolyte temperature is detected by the alkaline solution temperature sensor 111, it indicates that the electrolyte temperature needs to be increased. In this case, the opening of the cooling medium regulating valve can be reduced to raise the electrolyte temperature to reach the first target temperature. If the first target temperature is lower than the temperature of the electrolyte flowing into the electrolytic cell inlet at the current moment, it indicates that the electrolyte temperature needs to be decreased. In this case, the opening of the cooling medium regulating valve can be increased to lower the electrolyte temperature to reach the first target temperature.

[0062] In this way, by adjusting the opening of the cooling medium regulating valve, the required cooling medium flow rate is obtained, and then it passes through the alkaline heat exchanger ( Figure 1 The alkaline solution heat exchanger 101) adjusts the temperature of the electrolyte to the first target temperature.

[0063] Using the above method, the amount of heat that needs to be carried away by the electrolyte in the electrolyzer over a future period can be predicted based on the power supply parameters, the first outlet temperature, and the ambient temperature. This is the target regulating heat. Then, based on the target regulating heat and the electrolyte flow rate, the first target temperature that meets the electrolyzer's temperature requirements can be determined. Furthermore, based on the first target temperature, the opening of the cooling medium regulating valve is adjusted to ensure that the temperature of the electrolyte flowing into the electrolyzer reaches the first target temperature. In this way, the electrolyte temperature can be adjusted in a timely manner according to fluctuations in hydrogen production power, ensuring that the electrolyzer is at a suitable operating temperature to maximize its operational performance and efficiency.

[0064] The following section provides a detailed explanation of step S102, which involves determining the target adjustment heat for the electrolytic cell based on the power supply parameters, the first outlet temperature, and the ambient temperature.

[0065] Figure 3 This is a flowchart illustrating another method for controlling the temperature of an electrolyzer according to an exemplary embodiment, such as... Figure 3 As shown, step S102 may include the following steps:

[0066] In step S1021, the target heat generation of the electrolytic cell within a future preset time period is determined based on the power supply parameters.

[0067] In practical applications, a decomposition reaction can occur when the decomposition voltage of each reaction chamber is greater than or equal to a preset decomposition voltage, yielding hydrogen and oxygen. Therefore, in this embodiment, given the power supply parameters including the power supply voltage U and the power supply current I, the number of reaction chambers n in the electrolytic cell and the preset decomposition voltage E corresponding to each reaction chamber can be determined first. CELLThen, the target voltage can be determined based on the power supply voltage, the number of reaction chambers, and the preset decomposition voltage. The target voltage is the voltage at which heat can be generated within the electrolytic cell. It is understood that in the electrolytic cell, part of the power supply voltage is used for the decomposition reaction in each reaction chamber, and another part is used for the remaining circuitry. This latter part of the circuitry generates heat during operation; therefore, the target voltage that generates heat can be determined first. For example, the total voltage required for all reaction chambers, i.e., nE, can be determined first. CELL Then, the target voltage is obtained by the difference between the power supply voltage and the total voltage. For example, the target voltage U1 can be obtained using the following formula:

[0068] U1=U-nE CELL

[0069] Where U1 is the target voltage, U is the power supply voltage, n is the number of cells, and E CELL The preset decomposition voltage is used.

[0070] Furthermore, the target heat generation can be determined based on the target voltage and the power supply current. For example, the target heat generation Q of the electrolytic cell within time t can be obtained using the following formula. CELL :

[0071] Q CELL =U1*I*t=(U-nE CELL )*I*t

[0072] Among them, Q CELL Let U1 be the target heat output, I be the power supply current, U be the power supply voltage, n be the number of chambers, and E be the power supply voltage. CELL The preset decomposition voltage is used.

[0073] In step S1022, the heat dissipation of the electrolytic cell is determined based on the first outlet temperature and the ambient temperature.

[0074] For example, a first difference between the first outlet temperature and the ambient temperature can be determined first. Then, the heat dissipation can be determined based on this first difference. For instance, the heat dissipation Q corresponding to the electrolytic cell can be determined using the following formula. AIR :

[0075] Q AIR =KFΔT1

[0076] Among them, Q AIR Where is the heat dissipation, K is the heat transfer coefficient, F is the surface area of ​​the heat sink of the electrolytic cell, and ΔT1 is the first difference.

[0077] In step S1023, the target adjustment heat is determined based on the target heat generation and the heat dissipation.

[0078] For example, the second difference between the target heat generation and the heat dissipation can be used as the target adjustment heat. For instance, the target adjustment heat Q can be determined using the following formula:

[0079] Q = Q CELL -Q AIR

[0080] Where Q is the target adjustment heat, Q CELL For the target heat output, Q AIR This refers to heat dissipation.

[0081] The following is a detailed explanation of step S103 above, which determines the first target temperature of the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target heat adjustment.

[0082] Figure 4 This is a flowchart illustrating another method for controlling the temperature of an electrolyzer according to an exemplary embodiment, such as... Figure 4 As shown, step S103 may include the following steps:

[0083] In step S1031, the target temperature difference corresponding to the electrolytic cell is determined based on the electrolyte flow rate and the target adjustment heat.

[0084] For example, the target temperature difference ΔT2 can be determined using the following formula:

[0085]

[0086] Where ΔT2 is the target temperature difference, Q is the target adjustment heat, C is the specific heat capacity of the electrolyte, and V LYE This represents the electrolyte flow rate.

[0087] In step S1032, the first preset outlet temperature corresponding to the electrolytic cell is determined.

[0088] The normal operating temperature of the gas-liquid mixture at the outlet of the electrolyzer (usually around 90°C) can be used as the first preset outlet temperature of the electrolyzer. This first preset outlet temperature can be, for example, but not limited to, 90°C.

[0089] In step S1033, the first target temperature is determined based on the target temperature difference and the first preset outlet temperature.

[0090] For example, the difference between the first preset outlet temperature and the target temperature can be used as the first target temperature. For instance, the first target temperature T can be obtained using the following formula. IN :

[0091] T IN = OUT -ΔT2

[0092] Among them, T IN The first target temperature, T OUT ΔT2 is the first preset outlet temperature, and ΔT2 is the target temperature difference.

[0093] Figure 5 This is a flowchart illustrating another method for controlling the temperature of an electrolytic cell according to an exemplary embodiment. To further ensure that the temperature within the electrolytic cell is within a suitable range, such as... Figure 5 As shown, after the inlet temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature, the method may further include the following steps:

[0094] In step S105, the second outlet temperature of the electrolytic cell is obtained.

[0095] After the electrolyte inlet temperature reaches the first target temperature, to further ensure that the temperature inside the electrolytic cell remains within a suitable range, thereby maximizing the electrolytic cell's operating performance and efficiency, in this embodiment, the electrolyte inlet temperature can be further fine-tuned based on the electrolytic cell temperature. Specifically, the second outlet temperature of the electrolytic cell can be obtained first; this second outlet temperature is the outlet temperature of the electrolytic cell obtained when the electrolyte inlet temperature reaches the first target temperature. Similarly, it can be achieved through... Figure 1 The oxygen-side temperature sensor 113 is used to obtain the second outlet temperature of the electrolyzer.

[0096] In step S106, if the second outlet temperature is not equal to the second preset outlet temperature, the temperature adjustment step is executed cyclically until the second outlet temperature is equal to the second preset outlet temperature.

[0097] In this step, the second preset outlet temperature can be the same as or different from the first preset outlet temperature; this disclosure does not specifically limit this. If the second outlet temperature is not equal to the second preset outlet temperature, it indicates that the current temperature inside the electrolyzer has not yet reached the optimal operating temperature. At this time, the temperature adjustment step can be repeated cyclically to further adjust the temperature of the electrolyte flowing into the electrolyzer, thereby maximizing the performance of the electrolyzer.

[0098] The temperature regulation step may include the following steps:

[0099] S1, based on the first target temperature, the second outlet temperature and the second preset outlet temperature, determine the second target temperature corresponding to the electrolyte flowing into the electrolytic cell.

[0100] Specifically, the temperature difference between the second outlet temperature and the second preset outlet temperature can be determined first. Then, the second target temperature is determined based on the first target temperature and the temperature difference.

[0101] For example, if the temperature difference is greater than or equal to a preset difference (e.g., but not limited to, it can be 0), the second target temperature is determined based on the first target temperature and the first preset temperature K1. For instance, if the temperature difference is greater than or equal to the preset difference, it indicates that the electrolyte temperature flowing into the electrolyzer is currently high. In this case, the difference between the first target temperature and the first preset temperature K1 can be used as the second target temperature. If the temperature difference is less than the preset difference, the second target temperature is determined based on the first target temperature and the second preset temperature K2. For instance, if the temperature difference is less than the preset difference, it indicates that the electrolyte temperature flowing into the electrolyzer is currently low. In this case, the sum of the first target temperature and the second preset temperature K2 can be used as the second target temperature.

[0102] For example, the first preset temperature K1 can be set to a negative value, and the second preset temperature K2 can be set to a positive value. Then, if the temperature difference is greater than or equal to the preset difference, the sum of the first target temperature and the first preset temperature K1 is used as the second target temperature. If the temperature difference is less than the preset difference, the sum of the first target temperature and the second preset temperature K2 is used as the second target temperature.

[0103] For example, the number of cycles for performing the temperature adjustment step can be determined, and a target coefficient can be determined based on the number of cycles (for example, this can be obtained through a preset correspondence, which includes the correspondence between the number of cycles and the coefficient). If the temperature difference is greater than or equal to the preset difference, the target coefficient is multiplied by a first preset temperature K1 to obtain a first product. Then, based on the first product and the first target temperature, a second target temperature is determined (the method for determining the second target temperature based on the first target temperature and the first preset temperature K1 in the two examples above can be referred to, and will not be repeated here). If the temperature difference is less than the preset difference, the target coefficient is multiplied by a second preset temperature K2 to obtain a second product. Then, based on the second product and the first target temperature, the second target temperature is determined (again, the method for determining the second target temperature based on the first target temperature and the second preset temperature K2 in the two examples above can be referred to, and will not be repeated here). In this way, as the number of cycles increases, the first preset temperature K1 or the second preset temperature K2 can be flexibly adjusted to make the temperature inside the electrolytic cell closer to the optimal operating temperature.

[0104] It should be noted that the above examples are for illustrative purposes only, and this disclosure is not limited thereto.

[0105] S2, according to the second target temperature, adjust the opening of the cooling medium regulating valve to regulate the flow rate of the cooling medium so that the temperature of the electrolyte flowing into the inlet of the electrolytic cell reaches the second target temperature.

[0106] S3, when the time between adjusting the opening of the cooling medium regulating valve according to the second target temperature reaches a preset cycle time, the third outlet temperature of the electrolytic cell is obtained.

[0107] The preset circulation time can be calculated in advance based on the electrolyte flow rate and the volume of electrolyte in the electrolytic cell. For example, the preset circulation time can be obtained by dividing the volume of electrolyte in the electrolytic cell (which can be a preset value) by the electrolyte flow rate (which can be a preset value). Alternatively, the preset circulation time can be slightly longer than the quotient obtained by dividing the volume of electrolyte by the electrolyte flow rate; this disclosure does not specifically limit this. The preset circulation time is the time required for the electrolyte in the electrolytic cell to be completely replaced. Therefore, when the preset circulation time has elapsed since the time required to adjust the opening of the cooling medium regulating valve according to the second target temperature, that is, when it is determined that the electrolyte in the electrolytic cell has been completely replaced, the third outlet temperature of the electrolytic cell can be obtained to further determine whether the temperature in the electrolytic cell is within a suitable temperature range.

[0108] In another possible implementation, the electrolyte flow rate and the volume of electrolyte in the electrolytic cell can be acquired in real time, and the target cycle time can be determined based on the real-time acquired electrolyte flow rate and the volume of electrolyte in the electrolytic cell. Then, when the target cycle time is reached after adjusting the opening of the cooling medium regulating valve according to the second target temperature, the third outlet temperature of the electrolytic cell can be acquired.

[0109] S4, if the third outlet temperature is not equal to the second preset outlet temperature, the third outlet temperature is taken as the new second outlet temperature, and the second target temperature is taken as the new first target temperature.

[0110] If the third outlet temperature is not equal to the second preset outlet temperature, it can be determined that the temperature inside the electrolytic cell has not yet reached the optimal working temperature. At this time, the third outlet temperature can be used as the new second outlet temperature, and the second target temperature can be used as the new first target temperature. Steps S1 to S3 are executed again until the second outlet temperature is equal to the second preset outlet temperature, so as to ensure that the temperature inside the electrolytic cell is controlled at an optimal working temperature and to fully utilize the efficiency of the electrolytic cell.

[0111] Using the above method, the amount of heat that needs to be carried away by the electrolyte in the electrolyzer over a future period can be predicted based on the power supply parameters, the first outlet temperature, and the ambient temperature. This is the target regulating heat. Then, based on the target regulating heat and the electrolyte flow rate, the first target temperature that meets the electrolyzer's temperature requirements can be determined. Furthermore, based on the first target temperature, the opening of the cooling medium regulating valve is adjusted to ensure that the temperature of the electrolyte flowing into the electrolyzer reaches the first target temperature. In this way, the electrolyte temperature can be adjusted in a timely manner according to fluctuations in hydrogen production power, ensuring that the electrolyzer is at a suitable operating temperature to maximize its operational performance and efficiency.

[0112] Figure 6 This is a block diagram illustrating a temperature control device for an electrolytic cell according to an exemplary embodiment, such as... Figure 6 As shown, the device 200 includes:

[0113] The first acquisition module 201 is used to acquire the power supply parameters of the electrolytic cell, the first outlet temperature of the electrolytic cell, the ambient temperature, and the flow rate of the electrolyte flowing into the electrolytic cell.

[0114] The first determining module 202 is used to determine the target adjustment heat corresponding to the electrolytic cell based on the power supply parameters, the first outlet temperature and the ambient temperature.

[0115] The second determining module 203 is used to determine the first target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target adjustment heat.

[0116] The first adjustment module 204 is used to adjust the opening of the cooling medium adjustment valve according to the first target temperature, so as to adjust the flow rate of the cooling medium, so that the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature, and the cooling medium is used to adjust the temperature of the electrolyte.

[0117] Optionally, the first determining module 202 is used to determine the target heat generation of the electrolytic cell within a future preset time period based on the power supply parameters; determine the heat dissipation of the electrolytic cell based on the first outlet temperature and the ambient temperature; and determine the target adjustment heat based on the target heat generation and the heat dissipation.

[0118] Optionally, the first determining module 202 is used to determine the number of reaction chambers in the electrolytic cell and the preset decomposition voltage corresponding to each reaction chamber; determine the target voltage based on the power supply voltage, the number of chambers and the preset decomposition voltage; the target voltage is the voltage that can generate heat in the electrolytic cell; and determine the target heat generation based on the target voltage and the power supply current.

[0119] Optionally, the second determining module 203 is used to determine the target temperature difference corresponding to the electrolytic cell based on the electrolyte flow rate and the target adjustment heat; determine the first preset outlet temperature corresponding to the electrolytic cell; and determine the first target temperature based on the target temperature difference and the first preset outlet temperature.

[0120] Optionally, such as Figure 7 As shown, the device 200 also includes:

[0121] The second acquisition module 205 is used to acquire the second outlet temperature of the electrolytic cell;

[0122] The second adjustment module 206, when the second outlet temperature is not equal to the second preset outlet temperature, cyclically executes the temperature adjustment steps until the second outlet temperature is equal to the second preset outlet temperature;

[0123] The temperature regulation process includes:

[0124] The second target temperature corresponding to the electrolyte flowing into the electrolytic cell is determined based on the first target temperature, the second outlet temperature, and the second preset outlet temperature.

[0125] Based on the second target temperature, the opening of the cooling medium regulating valve is adjusted to regulate the flow rate of the cooling medium, so that the temperature of the electrolyte flowing into the electrolytic cell reaches the second target temperature.

[0126] If the time between adjusting the opening of the cooling medium regulating valve according to the second target temperature and the preset cycle time is reached, the third outlet temperature of the electrolytic cell is obtained.

[0127] If the third outlet temperature is not equal to the second preset outlet temperature, the third outlet temperature is taken as the new second outlet temperature, and the second target temperature is taken as the new first target temperature.

[0128] Optionally, determining the second target temperature corresponding to the electrolyte flowing into the electrolyzer based on the first target temperature, the second outlet temperature, and the second preset outlet temperature includes:

[0129] Determine the temperature difference between the second outlet temperature and the second preset outlet temperature;

[0130] The second target temperature is determined based on the first target temperature and the temperature difference.

[0131] Optionally, determining the second target temperature based on the first target temperature and the temperature difference includes:

[0132] If the temperature difference is greater than or equal to a preset difference, the second target temperature is determined based on the first target temperature and the first preset temperature; or,

[0133] If the temperature difference is less than the preset difference, the second target temperature is determined based on the first target temperature and the second preset temperature.

[0134] Using the aforementioned device, the amount of heat that needs to be removed by the electrolyte within the electrolyzer over a future period can be predicted based on the electrolyzer's power supply parameters, first outlet temperature, and ambient temperature—that is, the target regulating heat. Then, based on the target regulating heat and electrolyte flow rate, a first target temperature is determined to meet the electrolyzer's temperature requirements. Subsequently, based on this first target temperature, the opening of the cooling medium regulating valve is adjusted to ensure that the electrolyte flowing into the electrolyzer reaches the first target temperature. In this way, the electrolyte temperature can be adjusted in a timely manner according to fluctuations in hydrogen production power, ensuring the electrolyzer operates at a suitable temperature to maximize its performance and efficiency.

[0135] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0136] Figure 8 This is a block diagram illustrating an electronic device 300 according to an exemplary embodiment. For example, the electronic device 300 may be provided as a server. (Refer to...) Figure 8 The electronic device 300 includes a processor 322, which may be one or more, and a memory 332 for storing computer programs executable by the processor 322. The computer program stored in the memory 332 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processor 322 may be configured to execute the computer program to perform the aforementioned method for controlling the temperature of the electrolytic cell.

[0137] Additionally, the electronic device 300 may also include a power supply component 326 and a communication component 350. The power supply component 326 can be configured to perform power management of the electronic device 300, and the communication component 350 can be configured to enable communication of the electronic device 300, such as wired or wireless communication. Furthermore, the electronic device 300 may also include an input / output (I / O) interface 358. The electronic device 300 can operate on an operating system stored in the memory 332.

[0138] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the electrolytic cell temperature control method described above. For example, the non-transitory computer-readable storage medium may be the memory 332 including the program instructions described above, which may be executed by the processor 322 of the electronic device 300 to complete the electrolytic cell temperature control method described above.

[0139] In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described method for controlling the temperature of the electrolytic cell when executed by the programmable device.

[0140] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0141] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0142] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A method for controlling the temperature of an electrolytic cell, characterized in that, The method includes: The power supply parameters of the electrolyzer, the first oxygen outlet temperature of the electrolyzer, the ambient temperature, and the electrolyte flow rate into the electrolyzer are obtained. Determining the target adjustment heat corresponding to the electrolytic cell based on the power supply parameters, the first oxygen outlet temperature, and the ambient temperature includes: determining the target heat generation of the electrolytic cell within a future preset time period based on the power supply parameters; determining the heat dissipation of the electrolytic cell based on the first oxygen outlet temperature and the ambient temperature; and determining the target adjustment heat based on the target heat generation and the heat dissipation. Based on the electrolyte flow rate and the target adjustment heat, determine the first target temperature corresponding to the electrolyte flowing into the electrolytic cell; According to the first target temperature, the opening of the cooling medium regulating valve is adjusted to regulate the flow rate of the cooling medium, so that the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature. The cooling medium is used to regulate the temperature of the electrolyte. After the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature, the second oxygen outlet temperature of the electrolytic cell is obtained. If the second oxygen outlet temperature is not equal to the second preset outlet temperature, the temperature adjustment step is executed cyclically until the second oxygen outlet temperature is equal to the second preset outlet temperature. The temperature regulation steps include: Based on the first target temperature, the second oxygen outlet temperature, and the second preset outlet temperature, determine the second target temperature corresponding to the electrolyte flowing into the electrolytic cell; According to the second target temperature, the opening of the cooling medium regulating valve is adjusted to regulate the flow rate of the cooling medium so that the temperature of the electrolyte flowing into the electrolytic cell reaches the second target temperature. When the time between adjusting the opening of the cooling medium regulating valve according to the second target temperature and the preset cycle time is reached, the third oxygen outlet temperature of the electrolytic cell is obtained; the preset cycle time is the time required for all the electrolyte in the electrolytic cell to be replaced once. If the third oxygen outlet temperature is not equal to the second preset outlet temperature, the third oxygen outlet temperature is taken as the new second oxygen outlet temperature, and the second target temperature is taken as the new first target temperature.

2. The method according to claim 1, characterized in that, The power supply parameters include power supply voltage and power supply current. Determining the target heat generation of the electrolytic cell within a preset time period based on the power supply parameters includes: Determine the number of reaction chambers in the electrolytic cell and the preset decomposition voltage corresponding to each reaction chamber; The target voltage is determined based on the power supply voltage, the number of chambers, and the preset decomposition voltage; the target voltage is the voltage at which heat can be generated in the electrolytic cell. The target heat generation is determined based on the target voltage and the power supply current.

3. The method according to claim 1, characterized in that, The step of determining the first target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target adjustment heat includes: The target temperature difference corresponding to the electrolytic cell is determined based on the electrolyte flow rate and the target adjustment heat. Determine the first preset outlet temperature corresponding to the electrolytic cell; The first target temperature is determined based on the target temperature difference and the first preset outlet temperature.

4. The method according to claim 1, characterized in that, The step of determining the second target temperature corresponding to the electrolyte flowing into the electrolyzer based on the first target temperature, the second oxygen outlet temperature, and the second preset outlet temperature includes: Determine the temperature difference between the second oxygen outlet temperature and the second preset outlet temperature; The second target temperature is determined based on the first target temperature and the temperature difference.

5. The method according to claim 4, characterized in that, Determining the second target temperature based on the first target temperature and the temperature difference includes: If the temperature difference is greater than or equal to a preset difference, the second target temperature is determined based on the first target temperature and the first preset temperature; or, If the temperature difference is less than the preset difference, the second target temperature is determined based on the first target temperature and the second preset temperature.

6. A device for controlling the temperature of an electrolytic cell, characterized in that, The device includes: The first acquisition module is used to acquire the power supply parameters of the electrolytic cell, the first oxygen outlet temperature of the electrolytic cell, the ambient temperature, and the electrolyte flow rate flowing into the electrolytic cell. The first determining module is used to determine the target adjustment heat corresponding to the electrolytic cell based on the power supply parameters, the first oxygen outlet temperature and the ambient temperature. The second determining module is used to determine the first target temperature corresponding to the electrolyte flowing into the electrolytic cell based on the electrolyte flow rate and the target adjustment heat. The first regulating module is used to adjust the opening of the cooling medium regulating valve according to the first target temperature, so as to regulate the flow rate of the cooling medium and make the temperature of the electrolyte flowing into the electrolytic cell reach the first target temperature. The cooling medium is used to regulate the temperature of the electrolyte. The second acquisition module is used to acquire the second oxygen outlet temperature of the electrolytic cell after the temperature of the electrolyte flowing into the electrolytic cell reaches the first target temperature. The second adjustment module, when the second oxygen outlet temperature is not equal to the second preset outlet temperature, cyclically executes the temperature adjustment steps until the second oxygen outlet temperature is equal to the second preset outlet temperature; The temperature regulation steps include: Based on the first target temperature, the second oxygen outlet temperature, and the second preset outlet temperature, determine the second target temperature corresponding to the electrolyte flowing into the electrolytic cell; According to the second target temperature, the opening of the cooling medium regulating valve is adjusted to regulate the flow rate of the cooling medium so that the temperature of the electrolyte flowing into the electrolytic cell reaches the second target temperature. When the time between adjusting the opening of the cooling medium regulating valve according to the second target temperature and the preset cycle time is reached, the third oxygen outlet temperature of the electrolytic cell is obtained; the preset cycle time is the time required for all the electrolyte in the electrolytic cell to be replaced once. If the third oxygen outlet temperature is not equal to the second preset outlet temperature, the third oxygen outlet temperature is taken as the new second oxygen outlet temperature, and the second target temperature is taken as the new first target temperature. The first determining module is used to determine the target heat generation of the electrolytic cell within a future preset time period based on the power supply parameters; determine the heat dissipation of the electrolytic cell based on the first oxygen outlet temperature and the ambient temperature; and determine the target adjustment heat based on the target heat generation and the heat dissipation.

7. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the method according to any one of claims 1 to 5.

8. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the method according to any one of claims 1 to 5.

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