Method, device and equipment for improving stability of electrolytic tank and storage medium

Abstract

The invention relates to the technical field of electrolytic tanks, and discloses a method, device and equipment for improving the stability of an electrolytic tank and a storage medium. In response to the current increasing instruction, increasing an initial current value to a first current value, judging whether the electrolytic tank runs normally or not, comparing the first current value with a current threshold value under the condition of judging that the electrolytic tank runs normally, and judging whether optimization operation is carried out or not; and under the condition that optimization operation is judged to be carried out, after operation is carried out for a first specified duration under the state of the first current value, the current continues to be increased to a second current value, and after operation is carried out for a second specified duration under the state of the second current value, the current is reduced to the first current value. According to the technical scheme provided by one or more embodiments, the operation stability of the electrolytic tank can be improved through step-by-step adjustment of the current.

Description

Technical Field

[0001] The present application relates to the technical field of electrolytic cell hydrogen production, and in particular to a method, device, equipment and storage medium for improving the stability of an electrolytic cell. Background Art

[0002] PEM (Proton Exchange Membrance) electrolysis is an efficient water electrolysis hydrogen production technology, which uses a proton exchange membrane as an electrolyte to decompose water molecules by applying an external voltage to produce hydrogen and oxygen. PEM electrolysis cells are suitable for hydrogen production stations, hydrogen replenishment for fuel cell vehicles, and energy storage systems combined with renewable energy. Its high efficiency and environmentally friendly characteristics make it an important part of future clean energy solutions.

[0003] However, PEM electrolyzers often face some challenges in long-term high-current steady-state working environments, which affect their stable operation: the uneven distribution of reactant water inside the electrolyzer weakens the stability of the system; the accumulation of reaction gases in the catalyst active sites and water transmission channels causes the intensification of mass transfer polarization; in addition, a blind spot for gas discharge is formed inside the electrolyzer, which prevents the reaction gas from being effectively discharged, resulting in insufficient local heat dissipation and affecting the overall temperature balance of the electrolyzer.

[0004] In view of this, there is an urgent need for a method to improve the stability of an electrolytic cell, which can effectively improve the operating stability of a PEM electrolytic cell under high current steady-state working conditions. Summary of the invention

[0005] One or more embodiments of the present disclosure provide a method, device, equipment and storage medium for improving the stability of an electrolytic cell, which improves the stability of the operation of the electrolytic cell by step-by-step regulation of the current.

[0006] In a first aspect, one or more embodiments of the present disclosure provide a method for improving the stability of an electrolytic cell. The method comprises: receiving a current increase instruction from a requester; in response to the current increase instruction, increasing the initial current value to a first current value, judging whether the electrolytic cell is operating normally, and if the electrolytic cell is judged to be operating normally, comparing the first current value with the current threshold to judge whether to perform an optimization operation; if it is judged to perform an optimization operation, after running for a first specified time at the first current value, continuing to increase the current to a second current value, and after running for a second specified time at the second current value, reducing the current to the first current value; wherein the second current value is determined based on the first current value.

[0007] In a second aspect, one or more embodiments of the present disclosure provide a system for improving the stability of an electrolytic cell, the system comprising: a receiving unit for receiving a current increase instruction from a requester; a judging unit for, after receiving the current increase instruction from the requester, comparing a first current value with a current threshold to determine whether to perform an optimization operation; and an optimizing unit for performing step-by-step adjustment of the current when it is determined that an optimization operation is to be performed.

[0008] On the other hand, the present disclosure further provides an electronic device, which includes a memory and a processor, wherein the memory is used to store a computer program, and when the computer program is executed by the processor, the above-mentioned method for improving the stability of an electrolytic cell is implemented.

[0009] On the other hand, the present disclosure further provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the above-mentioned method for improving the stability of an electrolytic cell is implemented.

[0010] The technical solution provided by one or more embodiments of the present disclosure can improve the stability of the operation of the electrolytic cell by step-by-step adjustment of the current. Specifically, after receiving the instruction to increase the current, the current is increased to the first current value according to the preset current addition rate, and the size of the first current value and the current threshold is judged. If the first current value is less than or equal to the current threshold, the instruction is executed, and the electrolytic cell operates stably at the current of the first current value; if the first current value is greater than the current threshold, after running at the current of the first current value for a period of time, the current value is increased and operated for a period of time, so that the electrolytic cell is promoted to a better internal equilibrium state, and then the current value is reduced to the first current value, the instruction is executed, and the electrolytic cell operates stably at the current of the first current value. By performing step-by-step adjustment of the current, the internal equilibrium state of the electrolytic cell at the first current value is improved, which is more conducive to the electrolytic cell working at medium and high current values, and the operation stability of the electrolytic cell under high current steady-state working conditions is improved.

[0011] It can be seen that the technical solution provided by the present disclosure improves the equilibrium state of the electrolytic cell under medium and high currents, improves the distribution uniformity of the reactant water in the electrolytic cell, improves the temperature inside the electrolytic cell, and the equilibrium state of the gas, by performing step-by-step adjustment of the current, so that the electrolytic cell can operate more stably under the current state of the first current value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A schematic diagram of a method for improving the stability of an electrolytic cell in one embodiment of the present disclosure is shown; Figure 2 A schematic diagram showing different current value states in one embodiment of the present disclosure; Figure 3 A flowchart of steps for improving the stability of an electrolytic cell in one embodiment of the present disclosure is shown; Figure 4 A schematic diagram of a system functional unit for improving the stability of an electrolytic cell in one embodiment of the present disclosure is shown; Figure 5 A schematic structural diagram of an electronic device in one embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0015] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more. In addition, the use of "based on" or "according to" means openness and inclusiveness, because the process, steps, calculations or other actions "based on" or "according to" one or more of the conditions or values ​​can be based on additional conditions or beyond the described values ​​in practice.

[0016] PEM electrolyzers are usually used for the electrolysis of water to produce hydrogen and oxygen, converting electrical energy into chemical energy. During the electrolysis process, the passage of current forces water molecules to decompose, and the reactant water undergoes an oxidation reaction at the anode to produce oxygen, protons and electrons. The oxygen is discharged through the outlet of the anode, and the protons are transferred to the cathode for a reduction reaction to produce hydrogen, which is discharged through the outlet of the cathode. The electrolysis efficiency is optimized and the stable operation of the system is ensured by adjusting the current and voltage.

[0017] In some application scenarios, especially when the electrolytic cell is under medium and high current conditions, the stability and efficiency of the electrolytic cell may be affected. On the one hand, the uneven distribution of reactant water may lead to poor operating stability, and excessive current density may lead to accelerated water consumption in local areas, resulting in insufficient supply; on the other hand, the reaction gas may be retained in the catalyst active site and water transmission channel, resulting in increased mass transfer polarization, insufficient local cooling, increased ohmic resistance, and accelerated material degradation.

[0018] At present, in order to ensure the stable operation of electrolytic cells under medium and high current conditions, the following measures are usually taken: optimizing electrolytic cell design, improving cooling systems, using efficient gas emission strategies, and developing more durable electrode and membrane materials, etc. However, although these methods improve the stability of electrolytic cells, they also greatly increase costs and operational complexity, making them inconvenient for practical application.

[0019] In view of this, one or more embodiments of the present disclosure provide a method, device, equipment and storage medium for improving the stability of an electrolytic cell. The method can improve the equilibrium state of the electrolytic cell under medium and high currents by adjusting the current in steps, improve the uniformity of the distribution of reactant water in the electrolytic cell, improve the temperature inside the electrolytic cell, and the equilibrium state of the gas, so that the electrolytic cell can operate more stably under the current state of the first current value.

[0020] See also Figure 1 One embodiment of the present application provides a method for improving the stability of an electrolytic cell, the method being performed according to the following steps: S1: Receive the current increase instruction sent by the requester.

[0021] In this embodiment, a current increase instruction is received from a requesting party. The generation and sending of the current increase instruction can be selected according to different operation modes. For example, it can be a preset instruction. In this case, the requesting party is a computer device, and the computer device directly sends the current increase instruction. In addition, the current increase instruction can also be a manual instruction. In this case, the requesting party is an operator, and the operator decides whether to send a current increase instruction to manually control the current according to the operating status of the electrolytic cell.

[0022] In one embodiment, the current increase instruction can be preset. The preset instruction is usually automatically sent by the computer system at the start-up and specific operation stages of the electrolytic cell, and its parameters include the rate and time of adding current. These parameter settings are determined according to the design requirements of the electrolytic cell and the expected operation goals.

[0023] In one embodiment, a current increase instruction may be sent manually. The manual instruction is determined based on the judgment of the operator and the actual operating status of the electrolytic cell. When it is detected that the operating status inside the electrolytic cell needs to be improved, the operator may decide whether to send a current operation instruction based on the actual situation.

[0024] S2: In response to the current increase instruction, increase the initial current value to a first current value, determine whether the electrolytic cell is operating normally, and when it is determined that the electrolytic cell is operating normally, compare the first current value with the current threshold to determine whether to perform an optimization operation; In this embodiment, in response to the current increase instruction, the current is increased to a first current value. Optionally, the current increase can be performed according to different operation modes, and can be loaded according to a preset current addition rate, or can be manually regulated according to the power supply and the state of the electrolytic cell, and the current addition rate is set according to actual conditions. Specifically, if a preset current addition rate is used for loading, the current addition rate can be pre-set by a computer device as a parameter of the current increase instruction, and the current increases at the set rate to achieve a linear increase in the current; if manual regulation is used, the operator is required to manually adjust the current according to the state of the power supply and the electrolytic cell.

[0025] In this embodiment, in response to the current increase instruction, the first current value and the current threshold are compared to determine whether to perform the optimization operation, that is, whether to continue the step-by-step adjustment of the current. If the first current value is less than or equal to the current threshold, it is determined that the optimization operation is not performed, and if the first current value is greater than the current threshold, it is determined that the optimization operation needs to be performed.

[0026] In this embodiment, it is necessary to determine whether the electrolytic cell is in a normal operating state during the current adjustment process. Voltage instability may occur during the current adjustment process, and large voltage fluctuations may cause the electrolytic cell to fail to operate normally. For details, please refer to Figure 2 , obtain the first voltage fluctuation amplitude and the second voltage fluctuation amplitude under the first current value state and compare the two, wherein the first voltage fluctuation amplitude is a specified multiple of the voltage fluctuation amplitude under the initial current value state, for example, one. If the second voltage fluctuation amplitude is less than the first voltage fluctuation amplitude, it is determined that the electrolytic cell is operating normally; if the second voltage fluctuation amplitude is greater than or equal to the first voltage fluctuation amplitude, it is determined that the electrolytic cell is abnormal. In view of this, in order to solve the above-mentioned voltage abnormality problem and ensure the normal operation of the electrolytic cell, current regulation is required.

[0027] In one embodiment, if the second voltage fluctuation amplitude is greater than or equal to the first voltage fluctuation amplitude, it is determined that an abnormality has occurred in the electrolytic cell, and current regulation is required. Figure 2When the current is adjusted from the initial current value to the first current value, an abnormal voltage occurs. The voltage fluctuation amplitude of the current at the initial current value is A1, and the voltage fluctuation range of the current at the first current value is A2. A2 is greater than twice A1. At this time, the current value needs to be appropriately reduced. For example, the current is adjusted to a third current value. If the voltage can be stable at the third current value, the current is adjusted back to the first current value after the third current value runs for a third specified time. The third current value should be less than the first current value and greater than the initial current value. Preferably, the third specified time can be set to 0 to 5 minutes.

[0028] It should be noted that the current threshold is determined by repeated testing of the electrolytic cell. Different electrolytic cell products have different current thresholds. Optionally, taking an implementation of this case as an example, the current threshold may be 0.7 to 1.0 A / cm 2 .

[0029] In one embodiment, when the first current value is less than or equal to the current threshold, no optimization operation is required. Specifically, the current is increased to the first current value, the instruction is executed, and the electrolytic cell operates stably at the first current value.

[0030] In one embodiment, when the first current value is greater than the current threshold, additional optimization operations are required. Specifically, the current is increased to the first current value, and subsequent optimization and adjustment of the current is required.

[0031] S3: When it is determined that an optimization operation is to be performed, after running at the first current value for a first specified period of time, the current continues to be increased to a second current value, and after running at the second current value for a second specified period of time, the current is reduced to the first current value; wherein the second current value is determined based on the first current value.

[0032] In this embodiment, when it is determined that the optimization operation is to be performed, that is, the first current value I 1 When the current is greater than the current threshold, an optimization operation is performed. Specifically, the current is increased to a first current value I 1 , the electrolytic cell is in I 1 The first specified time period is preferably selected to be 0 to 5 minutes. The current value is continued to be increased to a second current value I 2 , the electrolytic cell operates at the second current value for a second specified time, preferably, the second specified time can be selected as 3 to 5 minutes. Then the current value is reduced to the first current value, the instruction is executed, and the electrolytic cell operates stably at the first current value. Wherein, the second current value I 2 The size of the first current value I 1 The size is determined, preferably, the second current value I can be set 2 0.05I 1~0.15I 1 .

[0033] In this embodiment, after the electrolytic cell runs for a first specified time under the state of the first current value, the electrolytic cell is in a first equilibrium state, and the first equilibrium state includes the equilibrium state of water, heat, and gas. At this time, the first equilibrium state may not be suitable for the electrolytic cell to run at the current of the first target value, which is easy to cause poor stability. For example, too high a current density may cause the water consumption rate in the local area to accelerate, and the water distribution is uneven, resulting in poor stability. Therefore, we choose to increase the water flow and increase the current value. Increasing the water flow increases the impact on the electrolytic cell. At this time, excessive water replenishment is promoted by increasing the current. The electrolytic cell runs for a second specified time under the state of the second current value. The electrolytic cell is in a second equilibrium state, and the second equilibrium state includes the equilibrium state of water, heat, and gas. After running for a period of time, the current value is reduced to the first current value. At this time, the water distribution inside the electrolytic cell after the equilibrium state is improved is more uniform than the original state.

[0034] In addition, in the first equilibrium state, the retention of reaction gas may cause increased mass transfer polarization and insufficient local cooling. At this time, increasing the water flow can quickly take away the residual gas inside the electrolytic cell. Continuing to increase the current promotes water consumption, and the electrolytic cell is elevated to the second equilibrium state. After running for a period of time, the current value is reduced to the first current value. At this time, the gas inside the electrolytic cell that has been improved to the equilibrium state is discharged in time, which improves the stability of the electrolytic cell operation.

[0035] In this embodiment, the equilibrium state inside the electrolytic cell includes the equilibrium state of water, heat, and gas. Among them, the equilibrium state of water refers to the water distribution state inside the electrolytic cell. In the equilibrium state, the water content inside the electrolytic cell is close to 100%. The equilibrium state of heat refers to the temperature state inside the electrolytic cell. In the equilibrium state, the working temperature of the electrolytic cell is 55°C to 65°C. The equilibrium state of gas refers to the discharge state of the gas inside the electrolytic cell. In the equilibrium state, the reaction product gas can be discharged from the inside of the electrode in a timely manner. Improving the equilibrium state of the electrolytic cell is to improve the state to make the distribution of the reactant water more uniform, the temperature more suitable, and the gas retention less.

[0036] See also Figure 3 The present application provides one or more embodiments of applying the above-mentioned method for improving the operating stability of an electrolytic cell, and the embodiments are according to Figure 3 The steps are as follows: In this embodiment, a current increase instruction is received, the current is increased to a first current value, and it is determined whether the first current value is greater than a current threshold value. If the first current value is less than or equal to the current threshold value, the instruction is executed, and the electrolytic cell operates stably at the first current value. If the first current value is greater than the current threshold value, an optimization operation is performed, first operating at the first current value for a first specified time, increasing the current value to a second current value and operating for a second specified time, and then reducing the current back to the first current value. The instruction is executed, and the electrolytic cell operates stably at the first current value.

[0037] In one embodiment, the current threshold of the electrolytic cell product is 0.7 to 1.0 A / cm 2 , set the first current value to 0.8A / cm 2 , set the preset current rate to 0.2A / cm per second 2 At this time, the first current value is less than the current threshold, and the current increase instruction is executed to increase the current value to 0.8A / cm 2 , the instruction is executed, the electrolytic cell is at 0.8A / cm 2 Stable operation.

[0038] In one embodiment, the current threshold of the electrolytic cell product is 0.7 to 1.0 A / cm 2 , set the first current value to 1.2A / cm 2 , set the preset current rate to 0.2A / cm per second 2 At this time, the first current value is greater than the current threshold, and optimization operation is required to increase the current value to 1.2A / cm 2 Run for 0 to 5 minutes, and then continue to increase the current to 1.26 to 1.38 A / cm 2 After running for 3 to 5 minutes, the internal equilibrium state of the electrolytic cell is improved. At this time, the internal equilibrium state of the electrolytic cell is more suitable for the electrolytic cell at 1.2A / cm 2 Then adjust the current back to the first value, i.e., reduce the current to 1.2A / cm 2 , the instruction is executed, the electrolytic cell is at 1.2A / cm 2 Stable operation.

[0039] In one embodiment, if an abnormality occurs in the electrolytic cell, for example, the initial current value is 0.6 A / cm 2 The voltage fluctuation amplitude is 1mV, and the first current value is 1.2A / cm 2 When the voltage fluctuation amplitude is 2mV, the current needs to be appropriately reduced to the third current value, which should be 0.6A / cm 2 ~1.2A / cm 2 Between, for example, 1.0A / cm 2, run for 0 to 5 minutes, ensure that the voltage fluctuation is less than 2mV, then adjust the current back to the second current value and continue the optimization operation.

[0040] In view of one or more embodiments provided above, the present solution improves the equilibrium state of the electrolytic cell under medium and high currents, improves the uniformity of the distribution of reactant water in the electrolytic cell, improves the temperature inside the electrolytic cell, and the equilibrium state of the gas, by performing step-by-step adjustment of the current, so that the electrolytic cell can operate more stably under the current state of the first current value.

[0041] According to an embodiment of the present application, a method embodiment for improving the stability of an electrolytic cell is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0042] Also, see Figure 4 One embodiment of the present application further provides a system for improving the stability of an electrolytic cell, the system comprising: The receiving unit 100 is used to receive a current increase instruction sent by a requesting party; The judgment unit 200 is used to compare the first current value with the current threshold value after receiving the current increase instruction sent by the requester to judge whether to perform the optimization operation; The optimization unit 300 is used to adjust the current in steps when it is determined that the optimization operation is to be performed; in, The receiving unit 100 is specifically used to receive a current increase instruction sent by a requesting party; The judgment unit 200 is specifically used to increase the initial current value to the first current value, compare the first current value with the current threshold, and judge whether an optimization operation is required. If the first current value is less than the current threshold, no optimization operation is required and the instruction execution is completed; if the first current value is greater than or equal to the current threshold, an optimization operation is required; The optimization unit 300 is specifically used to increase the current to the second current value if it is determined that the optimization operation needs to be performed, and reduce the current to the first current value after running for a specified period of time, and the instruction execution is completed.

[0043] In this embodiment, when the requesting party needs to increase the current output, the corresponding current increase instruction is sent to the receiving unit. After receiving the instruction to increase the current, the current is increased to the first current value according to the preset current increase rate. The judgment unit compares the first current value with the current threshold to determine whether an optimization operation is required. If the first current value is less than or equal to the current threshold, no optimization operation is required, and the instruction execution is completed; if the first current value is greater than the current threshold, the optimization unit is turned on to perform the optimization operation. After running for a period of time at the first current value, the current value is increased and run for a period of time to make the electrolytic cell reach a better internal balance state, and then the current value is reduced to the first current value, and the instruction execution is completed. By performing step-by-step adjustment of the current, the internal balance state of the electrolytic cell at the first current value is improved, which is more conducive to the electrolytic cell working at medium and high current values, and the operation stability of the electrolytic cell under high current steady-state working conditions is improved.

[0044] The further functional description of each of the above modules and units is the same as that of the above corresponding method embodiments and will not be repeated here.

[0045] In this embodiment, a system for improving the stability of an electrolytic cell is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0046] See also Figure 5 , Figure 5 is a schematic diagram of the structure of a computer device provided in an embodiment of the present application, such as Figure 5 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 5 A processor 10 is taken as an example.

[0047] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0048] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0049] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0050] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0051] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0052] The embodiment of the present application also provides a computer-readable storage medium. The above method according to the embodiment of the present application can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0053] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

[0054] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0055] For the convenience of description, the above device is described in various units according to their functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0056] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0057] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0058] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0059] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0060] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0061] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0062] The above is only the embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0063] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for improving the operating stability of an electrolytic cell, characterized in that: The method comprises: receiving a current increase instruction sent by a requesting party; In response to the current increase instruction, the initial current value is increased to a first current value, and it is determined whether the electrolytic cell is operating normally. If it is determined that the electrolytic cell is operating normally, the first current value is compared with the current threshold value to determine whether to perform an optimization operation; When it is determined that an optimization operation is to be performed, after running at the first current value for a first specified period of time, the current continues to be increased to a second current value, and after running at the second current value for a second specified period of time, the current is reduced to the first current value; wherein the second current value is determined based on the first current value.

2. The method according to claim 1, characterized in that In the process of increasing the initial current value to the first current value and continuing to increase the current to the second current value, increasing the current at a preset current adding rate, wherein the preset current adding rate is set according to the state of the electrolytic cell; Alternatively, the current adding rate is regulated according to the power supply status and the electrolytic cell status.

3. The method according to claim 1, characterized in that Comparing the first current value with the current threshold and determining whether to perform the optimization operation includes: If the first current value is less than the current threshold, it is determined that no optimization operation is performed; If the first current value is greater than the current threshold, it is determined to perform an optimization operation.

4. The method according to claim 1, characterized in that The step of determining whether the electrolytic cell is operating normally specifically includes: obtaining a first voltage fluctuation amplitude and a second voltage fluctuation amplitude under a first current value state, and comparing the first voltage fluctuation amplitude and the second voltage fluctuation amplitude, wherein the first voltage fluctuation amplitude is a specified multiple of the voltage fluctuation amplitude under an initial current value state; If the second voltage fluctuation amplitude is smaller than the first voltage fluctuation amplitude, it is determined that the electrolytic cell is operating normally; If the second voltage fluctuation amplitude is greater than or equal to the first voltage fluctuation amplitude, it is determined that an abnormal condition occurs in the electrolytic cell.

5. The method according to claim 4, characterized in that If the second voltage fluctuation amplitude is greater than or equal to the first voltage fluctuation amplitude, after determining that an abnormality occurs in the electrolytic cell, the method further includes: Reducing the current to a third current value, wherein the voltage fluctuation amplitude of the third current value is smaller than the first voltage fluctuation amplitude, and the third current value is smaller than the first current value and larger than the initial current value; The system operates for a third specified time period under the third current value, and then increases the current value to the first current value.

6. The method according to claim 1, characterized in that Running for a first specified time period under the state of the first current value includes: After operating for a first specified period of time at the first current value, the electrolytic cell is in a first equilibrium state, wherein the first equilibrium state includes an equilibrium state of water, heat, and gas.

7. The method according to claim 1, characterized in that Running for a second specified time period under the state of the second current value includes: After operating for a second specified period of time at the second current value, the electrolytic cell is in a second equilibrium state, wherein the second equilibrium state includes an equilibrium state of water, heat, and gas.

8. A device for improving the operating stability of an electrolytic cell, characterized in that: The device comprises: A receiving unit, used for receiving a current increase instruction sent by a requesting party; A judgment unit, configured to compare the first current value with the current threshold value after receiving the current increase instruction sent by the requester, and to judge whether to perform an optimization operation; The optimization unit is used to adjust the current in steps when it is determined that the optimization operation is to be performed.

9. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for improving the operating stability of an electrolytic cell according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute a method for improving the operating stability of an electrolytic cell according to any one of claims 1 to 7.

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