Heat recovery method and device for electrolytic cell array, storage medium and electronic device

Abstract

The present application discloses a heat recovery method and device, storage medium and electronic device for an electrolytic cell array, the method comprising: determining energy information for providing electrolytic energy to the electrolytic cell array, the energy information at least comprising: the energy type corresponding to the electrolytic energy, and the predicted power value of the energy type in the target cycle content; determining the operation information of multiple sub-electrolytic cells in the electrolytic cell array according to the energy information, the operation information being used to indicate the first number of sub-electrolytic cells of the first type in the electrolytic cell array in operation and the target operation power corresponding to each electrolytic cell, as well as the second number of sub-electrolytic cells of the second type in the shutdown state; monitoring the electrolytic cell array in real time based on the operation information to obtain the target monitoring result; determining the target sub-electrolytic cell to be heat recovered in the electrolytic cell array according to the target monitoring result. The problem that the heat generated during the operation of the electrolytic cell array cannot be effectively recycled is solved.

Description

Technical Field

[0001] The present application relates to the field of heat recovery technology, and in particular to a heat recovery method and device for an electrolytic cell array, a storage medium, and an electronic device. Background Art

[0002] Alkaline water electrolysis is the most commercially promising renewable energy hydrogen production method. With the development of large-scale hydrogen production technology, electrolytic hydrogen production equipment has a development trend from a single electrolyzer to a multi-electrolyzer array. Since the output power of wind power and photovoltaic power generation is fluctuating, in order to meet the load change requirements, the multi-electrolyzer hydrogen production system needs to be operated and controlled. For example, some electrolyzers are running at rated speed, and some electrolyzers are shut down, that is, there is a phenomenon of frequent start and stop of electrolyzers. However, due to the slow dynamic response of the alkaline water electrolysis system, especially the cold start usually takes several hours; at the same time, heating the electrolyte in advance helps to speed up the cold start time of the electrolyzer; on the other hand, the electrolyzer in the rated production state will generate a lot of heat, which is wasteful; there is an urgent need for a comprehensive heat management system to use the heat generated by some electrolyzers to heat other electrolyzers to increase the startup rate.

[0003] With regard to the problem in the related art that the heat generated during the operation of the electrolytic cell array cannot be effectively recycled, no effective solution has been proposed so far.

[0004] Therefore, it is necessary to improve the existing related technologies to overcome the above-mentioned defects in the related technologies and meet the needs of current actual production. Summary of the invention

[0005] The embodiments of the present application provide a heat recovery method and device for an electrolytic cell array, a storage medium, and an electronic device to at least solve the problem in the related art that the heat generated during the operation of the electrolytic cell array cannot be effectively recovered and utilized.

[0006] According to one aspect of an embodiment of the present application, a heat recovery method for an electrolytic cell array is provided, comprising: determining energy information for providing electrolytic energy for the electrolytic cell array, wherein the energy information at least includes: an energy type corresponding to the electrolytic energy, and a predicted power value of the energy type in a target cycle content; determining operation information of a plurality of sub-electrolytic cells in the electrolytic cell array according to the energy information, wherein the operation information is used to indicate a first number of first-type sub-electrolytic cells in operation and a target operating power corresponding to each electrolytic cell in the electrolytic cell array, as well as a second number of second-type sub-electrolytic cells in shutdown; monitoring the electrolytic cell array in real time based on the operation information to obtain a target monitoring result; and determining a target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

[0007] In an exemplary embodiment, after real-time monitoring of the electrolytic cell array is performed based on the operating information and the target monitoring results are obtained, the method further includes: determining the load power of each first-class sub-electrolytic cell based on the target monitoring results; sorting the power of the first number of sub-electrolytic cells according to the power corresponding to the load power; determining the target priority for heat exchange of the first-class sub-electrolytic cells through the sorting results; and controlling the electrolyte circulation loops of the first-class sub-electrolytic cells of different powers to be connected to the heat storage system in sequence based on the target priority, wherein the heat storage system is used for circulating heat exchange of the electrolyte.

[0008] In an exemplary embodiment, after the electrolyte circulation loops of first-type sub-electrolyzers of different powers are controlled to be connected to a heat storage system in sequence based on target priorities, the method includes: connecting the heat storage system to the electrolyte circulation loops of second-type sub-electrolyzers; when it is determined that there are sub-electrolyzers to be preheated that are about to be started among the second number of second-type sub-electrolyzers, using the heat energy of the heat storage system to preheat the sub-electrolyzers to be preheated; and / or, when there are sub-electrolyzers to be stationary that are about to be shut down among the first number of first-type sub-electrolyzers, controlling the heat storage system to deheat the sub-electrolyzers to be stationary.

[0009] In an exemplary embodiment, a target sub-electrolyzer to be subjected to heat recovery in an electrolyzer array is determined based on target monitoring results, including: when the target monitoring results also include: the temperature value of the sub-electrolyzer, the pressure value of the sub-electrolyzer, and the real-time load value of the sub-electrolyzer, calculating the allowable recovery heat value of each sub-electrolyzer in operation in the electrolyzer array; when the recovery heat value is less than a preset recovery value, marking the current sub-electrolyzer as an electrolyzer that does not temporarily recover heat; when the recovery heat value is greater than or equal to the preset recovery value, marking the current sub-electrolyzer as an electrolyzer that recovers heat; and screening and determining the target sub-electrolyzer to be subjected to heat recovery from the electrolyzer array based on the identification.

[0010] In an exemplary embodiment, after determining the energy information for providing electrolytic energy to the electrolytic cell array, the method further includes: obtaining a historical power demand value corresponding to the electrolytic cell array; when the historical power demand value is greater than the predicted power value, sending a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells; when the historical power demand value is equal to the predicted power value, sending a second prompt message to the management object of the electrolytic cell array to maintain the current state of the array; when the historical power demand value is less than the predicted power value, sending a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells.

[0011] In an exemplary embodiment, before sending a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells, the method further includes: determining a third number of sub-electrolytic cells that are allowed to be enabled by the predicted power value; calculating a first difference between the third number and the first number, and sending a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells based on the first difference.

[0012] In an exemplary embodiment, before sending a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells, the method further includes: determining a fourth number of enabled sub-electrolytic cells corresponding to the historical required power value; calculating a second difference between the fourth number and the first number, and sending a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells based on the second difference.

[0013] According to another aspect of an embodiment of the present application, a heat recovery device for an electrolytic cell array is also provided, comprising: a first determination module, used to determine energy information for providing electrolytic energy to the electrolytic cell array, wherein the energy information at least includes: the energy type corresponding to the electrolytic energy, and the predicted power value of the energy type in the target cycle content; a second determination module, used to determine the operation information of multiple sub-electrolytic cells in the electrolytic cell array according to the energy information, wherein the operation information is used to indicate a first number of first-type sub-electrolytic cells in the electrolytic cell array that are in operation and a target operating power corresponding to each electrolytic cell, as well as a second number of second-type sub-electrolytic cells that are in shutdown; a monitoring module, used to monitor the electrolytic cell array in real time based on the operation information to obtain a target monitoring result; and a third determination module, used to determine the target sub-electrolytic cells to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

[0014] According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the heat recovery method of the electrolytic cell array when running.

[0015] According to another aspect of an embodiment of the present application, there is also provided an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the heat recovery method of the electrolytic cell array through the computer program.

[0016] According to another aspect of the embodiment of the present application, a computer program product is also provided, including a computer program, and when the computer program is executed by a processor, the heat recovery method of the electrolytic cell array is implemented.

[0017] Through the present application, energy information for providing electrolytic energy to the electrolytic cell array is determined, wherein the energy information includes at least: the energy type corresponding to the electrolytic energy, and the predicted power value of the energy type in the target cycle content; the operation information of multiple sub-electrolytic cells in the electrolytic cell array is determined according to the energy information, wherein the operation information is used to indicate the first number of the first type of sub-electrolytic cells in the electrolytic cell array in operation and the target operation power corresponding to each electrolytic cell, as well as the second number of the second type of sub-electrolytic cells in shutdown; the electrolytic cell array is monitored in real time based on the operation information to obtain the target monitoring result; the target sub-electrolytic cell to be heat recovered in the electrolytic cell array is determined according to the target monitoring result. The above technical solution is adopted to solve the problem that the heat generated during the operation of the electrolytic cell array cannot be effectively recycled. Furthermore, according to the energy prediction, the operation parameters of the electrolytic cell array are dynamically adjusted, and the system status is monitored in real time to achieve efficient heat recovery and optimize the operation efficiency of the electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a hardware structure block diagram of a computer terminal of a heat recovery method for an electrolytic cell array according to an embodiment of the present application;

[0021] Figure 2 is a flow chart of a heat recovery method for an electrolytic cell array according to an embodiment of the present application;

[0022] Figure 3 is a structural schematic diagram of an electrolytic cell array energy recovery and utilization system according to an embodiment of the present application;

[0023] Figure 4 is a flow chart of an electrolytic cell array energy recovery and utilization system and its operation method according to an embodiment of the present application;

[0024] Figure 5 It is a structural block diagram of a heat recovery device for an electrolytic cell array according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, 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 only 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 ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal, a mobile terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 1 is a hardware structure block diagram of a computer terminal for a heat recovery method for an electrolytic cell array according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or N ( Figure 1 The computer terminal includes a processor 102 (only one is shown) (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, CPU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the computer terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0028] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the adjustment method of the monitoring network point in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or N magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal 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.

[0029] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0030] In this embodiment, a heat recovery method for an electrolytic cell array is provided. Figure 2 is a flow chart of a heat recovery method for an electrolytic cell array according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps S202-S208:

[0031] Step S202: determining energy information for providing electrolytic energy to the electrolytic cell array, wherein the energy information at least includes: an energy type corresponding to the electrolytic energy and a predicted power value of the energy type in a target period;

[0032] Step S204: determining the operation information of the plurality of sub-electrolyzers in the electrolyzer array according to the energy information, wherein the operation information is used to indicate a first number of sub-electrolyzers of the first type in the electrolyzer array that are in operation and a target operation power corresponding to each electrolyzer, and a second number of sub-electrolyzers of the second type that are in shutdown;

[0033] Step S206: performing real-time monitoring on the electrolytic cell array based on the operation information to obtain a target monitoring result;

[0034] Step S208: determining the target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

[0035] The above steps determine the energy information for providing electrolytic energy to the electrolytic cell array, wherein the energy information at least includes: the energy type corresponding to the electrolytic energy, and the predicted power value of the energy type in the target cycle content; determine the operation information of multiple sub-electrolytic cells in the electrolytic cell array according to the energy information, wherein the operation information is used to indicate the first number of sub-electrolytic cells of the first type in the electrolytic cell array in operation and the target operation power corresponding to each electrolytic cell, as well as the second number of sub-electrolytic cells of the second type in the shutdown state; monitor the electrolytic cell array in real time based on the operation information to obtain the target monitoring result; determine the target sub-electrolytic cell to be heat recovered in the electrolytic cell array according to the target monitoring result. The above technical solution solves the problem that the heat generated during the operation of the electrolytic cell array cannot be effectively recycled. Furthermore, according to the energy forecast, the operation parameters of the electrolytic cell array are dynamically adjusted, and the system status is monitored in real time to achieve efficient heat recovery and optimize the operation efficiency of the electrolytic cell.

[0036] In an exemplary embodiment, after real-time monitoring of the electrolytic cell array is performed based on the operating information and the target monitoring results are obtained, the method further includes: determining the load power of each first-class sub-electrolytic cell based on the target monitoring results; sorting the power of the first number of sub-electrolytic cells according to the power corresponding to the load power; determining the target priority for heat exchange of the first-class sub-electrolytic cells through the sorting results; and controlling the electrolyte circulation loops of the first-class sub-electrolytic cells of different powers to be connected to the heat storage system in sequence based on the target priority, wherein the heat storage system is used for circulating heat exchange of the electrolyte.

[0037] Optionally, there is an array of 10 electrolyzers, of which 5 first-class sub-electrolyzers are in high-load operation. Based on the target monitoring results, the load powers of the first-class sub-electrolyzers are determined to be 100kW, 80kW, 70kW, 60kW and 50kW respectively. The system sorts the 5 electrolyzers in descending order according to the load power, and the sorting results are: 100kW, 80kW, 70kW, 60kW, 50kW. Next, the target priority of heat recovery is determined according to the sorting results, and the priorities from high to low are: 100kW, 80kW, 70kW, 60kW, 50kW. Based on the target priority, the system controls the electrolyzers of different powers to be connected to the heat storage system in turn. First, the electrolyte circulation loop of the 100kW electrolyzer is connected to the heat storage system for heat exchange, and then the 80kW, 70kW, 60kW and 50kW electrolyzers are connected in turn until all first-class sub-electrolyzers complete heat recovery. During this process, the thermal storage system collects and stores heat recovered from the operating electrolyzers, improving the energy utilization efficiency and operational flexibility of the entire electrolyzer array.

[0038] In an exemplary embodiment, after the electrolyte circulation loops of first-type sub-electrolyzers of different powers are controlled to be connected to a heat storage system in sequence based on target priorities, the method includes: connecting the heat storage system to the electrolyte circulation loops of second-type sub-electrolyzers; when it is determined that there are sub-electrolyzers to be preheated that are about to be started among the second number of second-type sub-electrolyzers, using the heat energy of the heat storage system to preheat the sub-electrolyzers to be preheated; and / or, when there are sub-electrolyzers to be stationary that are about to be shut down among the first number of first-type sub-electrolyzers, controlling the heat storage system to deheat the sub-electrolyzers to be stationary.

[0039] Optionally, the system connects the heat storage system to the electrolyte circulation loop of the second type of sub-electrolyzer. If 5 of the second type of sub-electrolyzers are about to start and are marked as sub-electrolyzers to be preheated, the heat storage system will use the stored thermal energy to preheat these 5 electrolyzers, accelerate their startup process, reduce the cold start time, and thus improve the response speed of the entire array. At the same time, if there is an electrolyzer that is about to shut down among the first type of sub-electrolyzers, the heat storage system will perform heat removal treatment for it to help the electrolyzer cool down smoothly, avoid thermal shock caused by sudden shutdown, protect the equipment, extend the service life, and also pretreat for the next startup to reduce startup energy consumption. The above embodiment not only improves the operating efficiency of the electrolyzer array through the intelligent management and reuse of thermal energy, but also achieves the environmental protection goal of energy conservation and emission reduction.

[0040] In an exemplary embodiment, a target sub-electrolyzer to be subjected to heat recovery in an electrolyzer array is determined based on target monitoring results, including: when the target monitoring results also include: the temperature value of the sub-electrolyzer, the pressure value of the sub-electrolyzer, and the real-time load value of the sub-electrolyzer, calculating the allowable recovery heat value of each sub-electrolyzer in operation in the electrolyzer array; when the recovery heat value is less than a preset recovery value, marking the current sub-electrolyzer as an electrolyzer that does not temporarily recover heat; when the recovery heat value is greater than or equal to the preset recovery value, marking the current sub-electrolyzer as an electrolyzer that recovers heat; and screening and determining the target sub-electrolyzer to be subjected to heat recovery from the electrolyzer array based on the identification.

[0041] Optionally, in an array of 50 electrolyzers, the real-time monitoring system continuously collects the temperature value, pressure value and real-time load value of each sub-electrolyzer. If at a certain point in time, 30 electrolyzers in the array are in operation, the load range is from 50kW to 200kW. The monitoring system calculates the allowable recovery heat value for each operating electrolyzer according to a preset algorithm. For example, for an electrolyzer with a real-time load of 180kW, a temperature of 85°C and a pressure of 2bar, the system calculates that its allowable recovery heat value is 15kW. If this recovery heat value is less than the preset recovery value (for example, 20kW), the electrolyzer is identified as an electrolyzer that does not recover heat temporarily; conversely, if the recovery heat value is greater than or equal to 20kW, the electrolyzer is identified as a heat recovery electrolyzer. Through this process, if 15 electrolyzers are finally identified as heat recovery electrolyzers, and the recovery heat value meets or exceeds the preset standard. These electrolyzers will then become the primary targets for heat recovery in the system, and their electrolyte circulation loops will be connected to the heat storage system for heat recovery. Other electrolyzers that have not reached the preset recovery value will be temporarily excluded from the heat recovery process to ensure that their operating status is not affected. This intelligent screening and heat recovery process not only avoids improper heat recovery from electrolyzers with unstable operating conditions, but also ensures that sufficient heat energy can be safely and efficiently transferred to electrolyzers that need to be preheated, speeding up the startup process and improving the operating efficiency and response speed of the entire electrolyzer array.

[0042] In an exemplary embodiment, after determining the energy information for providing electrolytic energy to the electrolytic cell array, the method further includes: obtaining a historical power demand value corresponding to the electrolytic cell array; when the historical power demand value is greater than the predicted power value, sending a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells; when the historical power demand value is equal to the predicted power value, sending a second prompt message to the management object of the electrolytic cell array to maintain the current state of the array; when the historical power demand value is less than the predicted power value, sending a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells.

[0043] Optionally, an electrolyzer array of a factory consists of 100 electrolyzers. The system obtains the historical power demand value from the operation data of the past week. If the historical power demand value is 1500kW, the predicted power value is 1200kW. Since the historical power demand value is greater than the predicted power value, the system decides to send a first prompt message to the management object of the electrolyzer array to reduce the number of sub-electrolyzers in operation. For example, if the number of sub-electrolyzers currently in operation is 80, based on the predicted power of 1200kW, the system will prompt to reduce to 60 or 70 electrolyzers in operation to be closer to the actual demand. If the predicted power is increased to 1800kW, the system compares the updated predicted power value of 1800kW with the historical power demand value of 1500kW. Since the historical power demand value is less than the predicted power value, the system decides to send a third prompt message to the management object of the electrolyzer array to increase the number of sub-electrolyzers in operation. For example, the prompt is to increase from the current 60 or 70 operating electrolyzers to 80 or 90 to make full use of the additional energy. When the predicted power is equal to the historical power demand value, for example, the predicted power value is 1500kW, the system will send a second prompt message to maintain the current state of the array, ensuring the continuous and stable operation of the electrolyzer array, avoiding unnecessary startup and shutdown operations, and maintaining the best operating efficiency. Through this series of dynamic scheduling and intelligent decision-making, the electrolyzer array energy recovery and utilization system effectively improves energy utilization efficiency.

[0044] In an exemplary embodiment, before sending a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells, the method further includes: determining a third number of sub-electrolytic cells that are allowed to be enabled by the predicted power value; calculating a first difference between the third number and the first number, and sending a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells based on the first difference.

[0045] Optionally, an electrolyzer array consists of 100 electrolyzers, of which 80 electrolyzers (the first number) are currently in operation, with an average power consumption of 25kW for each electrolyzer and a predicted power of 1500kW. According to the predicted power value of 1500kW, the number of sub-electrolyzers that can support operation (the third number) is calculated. Taking 25kW as the average power of a single electrolyzer, 1500kW can support 60 electrolyzers to operate at full load. Comparing the third number (60 electrolyzers) with the first number (80 electrolyzers), the first difference is 20 electrolyzers. In view of the fact that the first difference is 20, the system recognizes that there is a risk of excess electricity, that is, the operating power of 20 electrolyzers is not covered by the predicted power supply. Therefore, the system sends a first prompt message to the management object to reduce the number of sub-electrolyzers in operation, and it is recommended to shut down 20 electrolyzers to avoid waste of electricity. Through this process, the system not only avoids the waste of electricity resources, but also realizes the efficient operation of the electrolyzer array through intelligent scheduling, reduces operating costs, but also protects the equipment and extends its service life, demonstrating its important value in modern energy management and production automation.

[0046] In an exemplary embodiment, before sending a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells, the method further includes: determining a fourth number of enabled sub-electrolytic cells corresponding to the historical required power value; calculating a second difference between the fourth number and the first number, and sending a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells based on the second difference.

[0047] Optionally, there are 60 electrolytic cells (the first number) in operation, with an average power of 25kW per electrolytic cell, a current total operating power of 1500kW, and a historical power demand of 2000kW. Based on the historical power demand data, the system determines that the optimal operating state is 80 electrolytic cells. The difference between the 60 currently operating electrolytic cells and the 80 electrolytic cells recommended by the historical data is 20 electrolytic cells (the second difference), indicating that the current number of operations is insufficient to meet the historical average demand. Therefore, the system sends a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells, suggesting that 20 electrolytic cells be added to achieve the operating state corresponding to the historical power demand value. Through the above steps, the system realizes intelligent operation scheduling based on historical power demand, which not only meets the power demand but also improves energy utilization efficiency.

[0048] Obviously, the embodiments described above are only some embodiments of the present application, not all embodiments. In order to better understand the method, the above process is described below in conjunction with the embodiments, but it is not intended to limit the technical solutions of the embodiments of the present application, specifically:

[0049] The optional embodiment of the present application provides an electrolyzer array energy recovery and utilization system and its operation method to solve the problem that the heat generated by the electrolyzer array during operation cannot be effectively recovered and utilized. The method first uses the electrolyzer array scheduling control system to intelligently adjust the operation strategy of the electrolyzer array according to the real-time power output and predicted value of wind and solar power generation, including determining the number of running and shutting down electrolyzers and the operating power of each electrolyzer, to ensure that the total power load of the array matches the fluctuating output of new energy. Secondly, through the electrolyzer array state monitoring system, the operating state data of the electrolyzer, such as temperature, pressure and real-time load, is collected and analyzed in real time to provide real-time feedback for scheduling control and ensure accurate adjustment of operating parameters. Finally, the excess heat generated by the high-load electrolyzer in operation is effectively recovered through the heat storage system, and this part of the heat is transferred to the electrolyzer that is about to start or shut down through the heat exchanger and the circulating pump for preheating the electrolyte, significantly accelerating the startup process of the electrolyzer, reducing the cold start time, and improving energy utilization efficiency.

[0050] As an optional implementation, Figure 3 It is a structural schematic diagram of an electrolytic cell array energy recovery and utilization system according to an embodiment of the present application. The system includes: an electrolytic cell array scheduling control system 32, an electrolytic cell array state monitoring system 34, and a heat storage system 36.

[0051] Optionally, the electrolyzer array scheduling control system 32 controls the subsequent operation scheduling of the electrolyzer array according to the wind and solar output power characteristics and predicted values, so that the overall power load of the electrolyzer array matches the output power of the new energy fluctuation. The control system is used to determine the number of electrolyzers in operation and shutdown, and the operating power of each electrolyzer.

[0052] Optionally, the electrolytic cell array status monitoring system 34 is used to monitor the operating status of each electrolytic cell in real time, such as temperature, pressure, real-time load, etc.

[0053] Optionally, the heat storage system 36 is used to recover the heat generated by the running electrolytic cell, and to exchange heat for the electrolyte of the electrolytic cell that is shut down or about to be started, so as to accelerate the start-up of the electrolytic cell. The heat storage system mainly includes a controller, a heat exchanger, a pump and corresponding pipelines; the controller is mainly used to monitor and control the flow rate, temperature and other states of the working fluid of the heat storage system; the working fluid can be water, air, or organic solvent, etc.

[0054] Optional, Figure 4 This is a flow chart of an electrolytic cell array energy recovery and utilization system and its operation method according to an embodiment of the present application, which specifically includes the following steps:

[0055] Step 1: First, the power monitoring and dispatching system controls the subsequent operation and dispatching of the electrolyzer array according to the wind and solar output power characteristics and predicted values, so that the overall power load of the electrolyzer array matches the fluctuating output power of renewable energy. The control system is used to determine the number of electrolyzers in operation and shutdown, and the operating power of each electrolyzer.

[0056] Step 2: According to the operating status of the electrolytic cells, the load power is arranged from large to small to determine the heat exchange priority for the thermal storage system: the electrolytic cells with larger power loads produce more heat, can provide more heat to the thermal storage system, and have a higher heat exchange priority.

[0057] Step 3: According to the priority of the electrolytic cells, the alkali solution circulation loop of the electrolytic cells is connected to the heat storage system in turn, and the heat storage system is used to exchange heat for the alkali solution circulation, and the heat flows from the alkali solution circulation into the heat storage system.

[0058] Step 4: Use the heat storage system to exchange heat with the alkali solution circulation loop of the electrolytic cell that is shut down or about to be started, preheat the electrolytic cell and speed up its startup rate.

[0059] It should be noted that the power forecast of wind and solar power generation needs to consider multiple factors such as weather forecast, seasonal changes, and geographical location. Ensuring the accuracy and real-time performance of the prediction model is crucial to dispatching and controlling. The startup and shutdown costs, operating efficiency, and power matching of the entire array of the electrolyzer need to be fully considered to achieve the optimal allocation of energy. At the same time, the communication network between the dispatching control system and the electrolyzer and status monitoring system must also be safe and reliable to avoid data transmission interruption or interference and ensure the accurate execution of commands. Encryption measures should be used to protect data security, and redundant communication paths should be set up to improve system reliability. In addition, the working fluids used in the thermal storage system (such as water, air, organic solvents, etc.) should have good thermal stability and chemical inertness to avoid reactions with the electrolyte, affecting the electrolysis efficiency or causing equipment corrosion.

[0060] In summary, the optional embodiments of the present application realize the dynamic matching of the electrolyzer array with the fluctuating output of wind and solar power generation, as well as the intelligent reuse of the operating heat of the electrolyzer through intelligent scheduling, real-time status monitoring and efficient heat recovery technology. Specifically, the scheduling and control system intelligently adjusts the operating strategy of the electrolyzer array, including the start and stop of the electrolyzer and power distribution, according to the real-time power output and predicted value of wind and solar power generation, to ensure that the total power of the array matches the fluctuation of new energy. The status monitoring system collects the operating status data of the electrolyzer in real time, such as temperature, pressure and real-time load, to provide accurate decision-making basis for scheduling control and ensure real-time optimization of operating parameters. The heat storage system recovers the excess heat generated by the high-load electrolyzer, and transmits this part of the energy to the electrolyzer that is about to start or shut down through the heat exchanger and the circulating pump, which is used for preheating the electrolyte, accelerating the startup process of the electrolyzer, and reducing the cold start time, thereby significantly improving energy utilization efficiency and response speed.

[0061] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0062] In this embodiment, a heat recovery device for an electrolytic cell array is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0063] Figure 5 : is a structural block diagram of a heat recovery device for an electrolytic cell array according to an embodiment of the present application, the device comprising:

[0064] A first determination module is used to determine energy information for providing electrolysis energy to the electrolytic cell array, wherein the energy information at least includes: an energy type corresponding to the electrolysis energy and a predicted power value of the energy type in a target cycle content;

[0065] a second determination module, configured to determine operation information of a plurality of sub-electrolyzers in the electrolyzer array according to the energy information, wherein the operation information is used to indicate a first number of sub-electrolyzers of a first type in the electrolyzer array that are in operation and a target operation power corresponding to each electrolyzer, and a second number of sub-electrolyzers of a second type that are in shutdown;

[0066] A monitoring module, used to monitor the electrolytic cell array in real time based on the operation information to obtain a target monitoring result;

[0067] The third determination module is used to determine the target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

[0068] The above device determines the energy information for providing electrolytic energy to the electrolytic cell array, wherein the energy information at least includes: the energy type corresponding to the electrolytic energy, and the predicted power value of the energy type in the target cycle content; determines the operation information of multiple sub-electrolytic cells in the electrolytic cell array according to the energy information, wherein the operation information is used to indicate the first number of sub-electrolytic cells of the first type in the electrolytic cell array in operation and the target operation power corresponding to each electrolytic cell, and the second number of sub-electrolytic cells of the second type in the shutdown state; monitors the electrolytic cell array in real time based on the operation information to obtain the target monitoring result; determines the target sub-electrolytic cell to be heat recovered in the electrolytic cell array according to the target monitoring result. The above technical solution solves the problem that the heat generated by the electrolytic cell array during operation cannot be effectively recycled. Furthermore, according to the energy prediction, the operation parameters of the electrolytic cell array are dynamically adjusted, and the system status is monitored in real time to achieve efficient heat recovery and optimize the operation efficiency of the electrolytic cell.

[0069] In an exemplary embodiment, the above-mentioned device also includes: a sorting module, which is used to monitor the electrolytic cell array in real time based on operating information, and after obtaining the target monitoring results, determine the load power of each first-type sub-electrolytic cell based on the target monitoring results; sort the power of the first number of sub-electrolytic cells according to the power size corresponding to the load power; determine the target priority of heat exchange for the first-type sub-electrolytic cells through the sorting results; and control the electrolyte circulation loops of the first-type sub-electrolytic cells with different powers to connect to the heat storage system in sequence based on the target priority, wherein the heat storage system is used to circulate and exchange heat for the electrolyte.

[0070] In an exemplary embodiment, the above-mentioned sorting module also includes: a connection unit, which is used to control the electrolyte circulation loops of the first type of sub-electrolyzers with different powers to be connected to the heat storage system in sequence based on the target priority, and then connect the heat storage system to the electrolyte circulation loop of the second type of sub-electrolyzer; when it is determined that there are sub-electrolyzers to be preheated that are about to be started among the second number of second-type sub-electrolyzers, use the heat energy of the heat storage system to preheat the sub-electrolyzers to be preheated; and / or, when there are sub-electrolyzers to be stationary that are about to be shut down among the first number of first-type sub-electrolyzers, control the heat storage system to perform deheating treatment on the sub-electrolyzers to be stationary.

[0071] In an exemplary embodiment, the third determination module is also used to calculate the allowable heat recovery value for each sub-electrolyzer in operation in the electrolyzer array when the target monitoring result also includes: the temperature value of the sub-electrolyzer, the pressure value of the sub-electrolyzer, and the real-time load value of the sub-electrolyzer; when the heat recovery value is less than a preset recovery value, the current sub-electrolyzer is identified as an electrolyzer that does not temporarily recover heat; when the heat recovery value is greater than or equal to the preset recovery value, the current sub-electrolyzer is identified as an electrolyzer that recovers heat; and the target sub-electrolyzer to be subjected to heat recovery is screened and determined from the electrolyzer array according to the identification.

[0072] In an exemplary embodiment, the above-mentioned device also includes: an acquisition module, which is used to obtain the historical power demand value corresponding to the electrolytic cell array after determining the energy information that provides electrolytic energy for the electrolytic cell array; when the historical power demand value is greater than the predicted power value, send a first prompt message to the management object of the electrolytic cell array to reduce the number of operating sub-electrolytic cells; when the historical power demand value is equal to the predicted power value, send a second prompt message to the management object of the electrolytic cell array to maintain the current state of the array; when the historical power demand value is less than the predicted power value, send a third prompt message to the management object of the electrolytic cell array to increase the number of operating sub-electrolytic cells.

[0073] In an exemplary embodiment, the acquisition module further includes: a calculation unit for determining a third number of sub-electrolyzers that are allowed to be enabled by the predicted power value before sending a first prompt message to the management object of the electrolyzer array to reduce the number of running sub-electrolyzers; calculating a first difference between the third number and the first number, and sending a first prompt message to the management object of the electrolyzer array to reduce the number of running sub-electrolyzers based on the first difference.

[0074] In an exemplary embodiment, the acquisition module further includes: a sending unit, for determining a fourth number of enabled sub-electrolyzers corresponding to the historical required power value before sending a third prompt message to the management object of the electrolyzer array to increase the number of operating sub-electrolyzers; calculating a second difference between the fourth number and the first number, and sending a third prompt message to the management object of the electrolyzer array to increase the number of operating sub-electrolyzers based on the second difference.

[0075] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0076] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0077] S1. Determine energy information for providing electrolysis energy to the electrolytic cell array, wherein the energy information at least includes: energy type corresponding to the electrolysis energy and predicted power value of the energy type in the target cycle content;

[0078] S2. Determine the operation information of the plurality of sub-electrolyzers in the electrolyzer array according to the energy information, wherein the operation information is used to indicate a first number of sub-electrolyzers of the first type in the electrolyzer array that are in operation and a target operation power corresponding to each electrolyzer, and a second number of sub-electrolyzers of the second type that are in shutdown;

[0079] S3, monitoring the electrolytic cell array in real time based on the operation information to obtain a target monitoring result;

[0080] S4. Determine the target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

[0081] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0082] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0083] An embodiment of the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps in any one of the above method embodiments are performed.

[0084] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0085] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0086] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0087] S1. Determine energy information for providing electrolysis energy to the electrolytic cell array, wherein the energy information at least includes: energy type corresponding to the electrolysis energy and predicted power value of the energy type in the target cycle content;

[0088] S2. Determine the operation information of the plurality of sub-electrolyzers in the electrolyzer array according to the energy information, wherein the operation information is used to indicate a first number of sub-electrolyzers of the first type in the electrolyzer array that are in operation and a target operation power corresponding to each electrolyzer, and a second number of sub-electrolyzers of the second type that are in shutdown;

[0089] S3, monitoring the electrolytic cell array in real time based on the operation information to obtain a target monitoring result;

[0090] S4. Determine the target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

[0091] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0092] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0093] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of N computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that here, or they can be made into individual integrated circuit modules, or N of the modules or steps can be made into a single integrated circuit module for implementation. In this way, the present application is not limited to any specific combination of hardware and software.

[0094] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A heat recovery method for an electrolytic cell array, characterized in that: include: Determine energy information for providing electrolysis energy to the electrolytic cell array, wherein the energy information at least includes: an energy type corresponding to the electrolytic energy and a predicted power value of the energy type in a target cycle content; determine operation information of a plurality of sub-electrolytic cells in the electrolytic cell array according to the energy information, wherein the operation information is used to indicate a first number of sub-electrolytic cells of a first type in operation in the electrolytic cell array and a target operation power corresponding to each electrolytic cell, and a second number of sub-electrolytic cells of a second type in shutdown state; Based on the operation information, the electrolytic cell array is monitored in real time to obtain a target monitoring result; and a target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array is determined according to the target monitoring result.

2. The heat recovery method of the electrolytic cell array according to claim 1, characterized in that: After real-time monitoring of the electrolytic cell array based on the operation information and obtaining a target monitoring result, the method further includes: Determine the load power of each first-type sub-electrolyzer based on the target monitoring result; sorting the power of the first number of sub-electrolyzers according to the power corresponding to the load power; Determining the target priority of heat exchange for the first type of sub-electrolyzers according to the sorting results; Based on the target priority, the electrolyte circulation loops of the first type of sub-electrolyzers with different powers are sequentially controlled to be connected to a heat storage system, wherein the heat storage system is used for heat exchange of the electrolyte circulation.

3. The heat recovery method of the electrolytic cell array according to claim 2, characterized in that: After the electrolyte circulation loops of the first type of sub-electrolyzers with different powers are sequentially controlled to be connected to the heat storage system based on the target priority, the method includes: connecting the heat storage system to the electrolyte circulation loop of the second type of sub-electrolyzer; When it is determined that there is a sub-electrolyzer to be preheated that is about to be started among the second number of sub-electrolyzers of the second type, using the heat energy of the heat storage system to preheat the sub-electrolyzer to be preheated; And / or, when there is a sub-electrolyzer to be stopped that is about to be shut down among the first number of first-type sub-electrolyzers, the heat storage system is controlled to perform a heat removal treatment on the sub-electrolyzer to be stopped.

4. The heat recovery method of the electrolytic cell array according to claim 1, characterized in that: Determining a target sub-electrolyzer to be subjected to heat recovery in the electrolyzer array according to the target monitoring result includes: The target monitoring result also includes: the temperature value of the sub-electrolyzer, the pressure value of the sub-electrolyzer, and the real-time load value of the sub-electrolyzer, calculating the allowed recovery heat value of each sub-electrolyzer in the electrolyzer array in operation; When the recovered heat value is less than the preset recovery value, the current sub-electrolyzer is marked as an electrolyzer that does not temporarily recover heat; When the recovered heat value is greater than or equal to a preset recovery value, the current sub-electrolyzer is identified as a heat recovery electrolyzer; The target sub-electrolytic cell to be subjected to heat recovery is screened and determined from the electrolytic cell array according to the identifier.

5. The heat recovery method of the electrolytic cell array according to claim 1, characterized in that: After determining the energy information for providing electrolysis energy to the electrolytic cell array, the method further includes: Obtaining a historical power demand value corresponding to the electrolytic cell array; When the historical power demand value is greater than the predicted power value, sending a first prompt message for reducing the number of operating sub-electrolytic cells to the management object of the electrolytic cell array; When the historical required power value is equal to the predicted power value, sending a second prompt message for maintaining the current state of the array to the management object of the electrolytic cell array; When the historical required power value is less than the predicted power value, third prompt information for increasing the number of operating sub-electrolytic cells is sent to the management object of the electrolytic cell array.

6. The heat recovery method of the electrolytic cell array according to claim 5, characterized in that: Before sending the first prompt information of reducing the number of operating sub-electrolytic cells to the management object of the electrolytic cell array, the method further includes: determining a third number of sub-electrolyzers that are enabled by the predicted power value; A first difference between the third number and the first number is calculated, and based on the first difference, a first prompt message for reducing the number of operating sub-electrolytic cells is sent to a management object of the electrolytic cell array.

7. The heat recovery method of the electrolytic cell array according to claim 5, characterized in that: Before sending the third prompt information for increasing the number of operating sub-electrolytic cells to the management object of the electrolytic cell array, the method further includes: Determining a fourth number of sub-electrolyzers enabled corresponding to the historical required power value; A second difference between the fourth number and the first number is calculated, and based on the second difference, a third prompt message for increasing the number of operating sub-electrolytic cells is sent to a management object of the electrolytic cell array.

8. A heat recovery device for an electrolytic cell array, characterized in that: include: A first determination module is used to determine energy information for providing electrolysis energy to the electrolytic cell array, wherein the energy information at least includes: an energy type corresponding to the electrolysis energy and a predicted power value of the energy type in a target cycle content; a second determination module, configured to determine operation information of a plurality of sub-electrolyzers in the electrolyzer array according to the energy information, wherein the operation information is used to indicate a first number of sub-electrolyzers of a first type in the electrolyzer array that are in operation and a target operation power corresponding to each electrolyzer, and a second number of sub-electrolyzers of a second type that are in shutdown; A monitoring module, used to monitor the electrolytic cell array in real time based on the operation information to obtain a target monitoring result; The third determination module is used to determine the target sub-electrolytic cell to be subjected to heat recovery in the electrolytic cell array according to the target monitoring result.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 7 when executed.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 7 through the computer program.

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