Electrolytic hydrogen production and ammonia synthesis system, method, equipment and medium for thermal power plant

Abstract

The invention provides a thermal power plant electrolytic hydrogen production ammonia synthesis system, method, equipment and medium, and belongs to the technical field of thermal power plants. The system comprises a data processing unit, an electrolytic hydrogen production device, an air separation unit and an ammonia gas synthesis device. The data processing unit monitors supply and demand of a power grid, calculates distributable electric quantity, generates hydrogen production and nitrogen production instructions and controls power supply of the thermal power generating unit. The electrolytic hydrogen production device utilizes electric energy to electrolyze water to generate hydrogen, and the air separation unit separates nitrogen in air. Hydrogen and nitrogen generated by the two ammonia gases are synthesized in an ammonia gas synthesis device according to a user instruction. The energy utilization efficiency is improved, renewable energy consumption and hydrogen energy economic development are promoted, carbon emission is reduced, the stability of a power grid is enhanced, and economic benefits are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power plants, and in particular to a thermal power plant electrolytic hydrogen production and ammonia synthesis system, a thermal power plant electrolytic hydrogen production and ammonia synthesis method, an electronic device and a computer-readable storage medium. Background Art

[0002] With the continuous growth of global energy demand and the increasing requirements for environmental protection, the position of traditional thermal power generation in the energy structure has been challenged. During the operation of thermal power units, due to load fluctuations and peak-shaving requirements, the power generation of thermal power units often exceeds the power consumption of the power grid system, resulting in energy waste. In addition, carbon dioxide emissions generated by thermal power generation are one of the main causes of the greenhouse effect. Therefore, how to effectively utilize the excess power generation capacity of thermal power units, reduce energy waste, and reduce carbon emissions has become an urgent problem to be solved in the current energy field.

[0003] At present, the main focus is on developing electric hydrogen production technology, which uses excess electricity to electrolyze water to generate hydrogen. Hydrogen, as a clean energy source, can be used in applications in fuel cells, synthetic ammonia and other fields.

[0004] However, existing electrolysis hydrogen production systems often operate independently of thermal power plants and lack direct linkage with the power generation of thermal power units, resulting in low hydrogen production efficiency and high system operating costs. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a system, method, equipment and medium for producing ammonia by electrolysis of hydrogen in a thermal power plant to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned object, an embodiment of the present invention provides a system for synthesizing ammonia by electrolyzing hydrogen in a thermal power plant, comprising: a data processing unit, an electrolytic hydrogen production device, an air separation unit, and an ammonia synthesis device; the data processing unit is respectively connected to the electrolytic hydrogen production device and the air separation unit for communication, the output end of the electrolytic hydrogen production device is connected to the first input end of the ammonia synthesis device, and the output end of the air separation unit is connected to the second input end of the ammonia synthesis device; A data processing unit is used to calculate the difference between the power generation of the thermal power unit and the power consumption of the power grid system when the power generation of the thermal power unit is greater than the power consumption of the power grid system, obtain the allocable power, and determine the power required for hydrogen production and the power required for nitrogen separation based on the allocable power; The data processing unit is also used to generate a hydrogen production instruction based on the amount of electricity required for hydrogen production, and to generate a nitrogen production instruction based on the amount of electricity required for nitrogen separation; The data processing unit is also used to send hydrogen production instructions and nitrogen production instructions to the thermal power unit to control the thermal power unit to deliver the electricity required for hydrogen production and the electricity required for nitrogen separation to the electrolytic hydrogen production device and the air separation unit; The electrolytic hydrogen production device is used to receive the electricity required for hydrogen production and electrolyze water to generate hydrogen gas corresponding to the electricity required for hydrogen production; An air separation unit is used to receive the electricity required for nitrogen separation to separate nitrogen from air, and obtain nitrogen with the electricity required for nitrogen separation; The ammonia synthesis device is used to synthesize ammonia by using the hydrogen output corresponding to the electricity required for hydrogen production and the nitrogen output corresponding to the electricity required for nitrogen separation when receiving the ammonia synthesis instruction sent by the user terminal.

[0007] Optionally, the data processing unit is specifically used for: Obtain the power consumption of the power grid system and the power generation of thermal power units; When the power generation of the thermal power unit is greater than the power consumption of the power grid system, the difference between the power generation of the thermal power unit and the power consumption of the power grid system is calculated to obtain the allocable power; Based on the allocable electricity, the electricity required for hydrogen production is obtained, and the difference between the allocable electricity and the electricity required by the electrolytic hydrogen production device is calculated to obtain the electricity required for nitrogen separation; Generate a hydrogen production instruction based on the power required for hydrogen production, and generate a nitrogen production instruction based on the power required for nitrogen separation; The hydrogen production instruction and the nitrogen production instruction are sent to the thermal power unit to control the thermal power unit to deliver the electricity required for hydrogen production and the electricity required for nitrogen separation to the electrolytic hydrogen production device and the air separation unit.

[0008] Optionally, the data processing unit (1) is further configured to: The following formula is used to calculate the allocable power and the energy consumption of the preset air separation unit to obtain the power required for hydrogen production; ;in, The amount of electricity required to produce hydrogen, Indicates the allocable power. Indicates the energy consumption of the preset air separation unit.

[0009] Optionally, it also includes: an oxygen purification device and an oxygen storage device; The first input end of the oxygen purification device is connected to the first output end of the electrolytic hydrogen production device, the output end of the oxygen purification device is connected to the input end of the oxygen storage device, and the second input end of the oxygen purification device is connected to the first output end of the air separation unit; The oxygen purification device is used to purify the oxygen produced corresponding to the electricity required for hydrogen production and the oxygen produced corresponding to the electricity required for nitrogen separation to obtain purified oxygen; The oxygen storage device is used to store the purified oxygen.

[0010] Optionally, it also includes: a hydrogen purification device and a hydrogen storage device; The input end of the hydrogen purification device is connected to the second output end of the electrolytic hydrogen production device, the output end of the hydrogen purification device is connected to the input end of the hydrogen storage device, and the output end of the hydrogen storage device is connected to the first input end of the ammonia synthesis device; The hydrogen purification device is used to purify the hydrogen produced corresponding to the amount of electricity required for hydrogen production to obtain purified hydrogen; The hydrogen storage device is used to store the purified hydrogen.

[0011] Optionally, it also includes: a nitrogen storage device and an ammonia storage device; The input end of the nitrogen storage device is connected to the second output end of the air separation unit, the output end of the nitrogen storage device is connected to the second input end of the ammonia synthesis device, and the output end of the ammonia synthesis device is connected to the input end of the ammonia storage device; The nitrogen storage device is used to store the nitrogen output corresponding to the electricity required for nitrogen separation; The ammonia storage device is used to store ammonia.

[0012] Optionally, the electrolytic hydrogen production device includes a protective shell and an electrolytic cell arranged in the protective shell, and the electrolytic cell is a vertical electrolytic cell or a horizontal electrolytic cell.

[0013] In a second aspect of the embodiment of the present invention, it is provided to obtain the power consumption of the power grid system and the power generation of the thermal power unit; When the power generation of the thermal power unit is greater than the power consumption of the power grid system, the difference between the power generation of the thermal power unit and the power consumption of the power grid system is calculated to obtain the allocable power; Based on the allocable electricity, the electricity required for hydrogen production is obtained, and the difference between the allocable electricity and the electricity required by the electrolytic hydrogen production device is calculated to obtain the electricity required for nitrogen separation; Generate a hydrogen production instruction based on the power required for hydrogen production, and generate a nitrogen production instruction based on the power required for nitrogen separation; The hydrogen production instruction is sent to the thermal power unit to control the thermal power unit to deliver the electricity required for hydrogen production to the electrolytic hydrogen production device, so that the electrolytic hydrogen production device receives the electricity required for hydrogen production to electrolyze water to generate hydrogen gas corresponding to the electricity required for hydrogen production; Sending a nitrogen production instruction to a thermal power unit to control the thermal power unit to deliver the power required for nitrogen separation to an air separation unit, so that the air separation unit receives the power required for nitrogen separation to separate nitrogen from air, and obtains nitrogen of the power required for nitrogen separation; When an ammonia synthesis instruction is received from a user terminal, ammonia is synthesized using hydrogen corresponding to the output of electricity required for hydrogen production and nitrogen corresponding to the output of electricity required for nitrogen separation.

[0014] In a third aspect of the embodiments of the present invention, an electronic device is provided, comprising: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the above-mentioned method for producing ammonia by electrolysis of hydrogen in a thermal power plant is executed.

[0015] In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, storing computer instructions, which, when executed on a computer, enable the computer to execute the above-mentioned method for producing ammonia by electrolysis of hydrogen in a thermal power plant.

[0016] Beneficial effects of the present invention: (1) Improving energy efficiency: The system can utilize the excess power generation capacity of thermal power units during low-load periods to produce hydrogen through water electrolysis and nitrogen through air separation, thereby improving overall energy efficiency and reducing energy waste.

[0017] (2) Promoting the consumption of renewable energy: When thermal power units use renewable energy to generate electricity, the system can better utilize this green electricity, promote the consumption of renewable energy, and reduce dependence on fossil energy.

[0018] (3) Reducing carbon emissions: Through the synthesis of ammonia, carbon dioxide emissions generated by direct combustion of fossil fuels can be reduced, which helps to achieve carbon reduction goals, improve environmental quality, and promote sustainable development.

[0019] (4) Improved economic benefits: Synthetic ammonia is an important chemical raw material, widely used in agricultural fertilizers, chemical production and other fields, and has high economic value. Through this system, thermal power plants can increase additional sources of income.

[0020] (5) Grid load regulation: The system can dynamically adjust the amount of hydrogen and nitrogen produced by electrolysis according to the real-time demand of the grid and the power generation of thermal power units, and provide auxiliary services for the grid, such as peak load regulation and energy storage, to enhance the stability and flexibility of the grid.

[0021] (6) Promoting the development of hydrogen economy: By producing hydrogen through electrolysis, the system provides a hydrogen source for the development of hydrogen economy, helping to promote the development of related industries such as hydrogen energy and fuel cells.

[0022] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings: Figure 1It is a structural schematic diagram of a system for producing ammonia by electrolysis of hydrogen in a thermal power plant provided by an embodiment of the present invention; Figure 2 It is a schematic flow diagram of a method for producing ammonia by electrolysis of hydrogen in a thermal power plant provided by an embodiment of the present invention.

[0024] Description of Reference Numerals 1-data processing unit; 2-electrolysis hydrogen production device; 3-oxygen purification device; 4- oxygen storage device; 5- hydrogen purification device; 6- hydrogen storage device; 7-air separation unit; 8-nitrogen storage device; 9-ammonia synthesis device; 10- Ammonia storage device. DETAILED DESCRIPTION

[0025] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0028] Embodiment 1 Please refer to Figure 1 , Figure 11 is a schematic diagram of the structure of a thermal power plant electrolytic hydrogen production and ammonia synthesis system provided by an embodiment of the present invention, the system comprising: a data processing unit 1, an electrolytic hydrogen production device 2, an air separation unit 7 and an ammonia synthesis device 9; the data processing unit 1 is respectively connected to the electrolytic hydrogen production device 2 and the air separation unit 7 for communication, the output end of the electrolytic hydrogen production device 2 is connected to the first input end of the ammonia synthesis device 9, and the output end of the air separation unit 7 is connected to the second input end of the ammonia synthesis device 9; the data processing unit 1 is used to calculate the difference between the power generation of the thermal power unit and the power consumption of the power grid system when the power generation of the thermal power unit is greater than the power consumption of the power grid system, to obtain the distributable power, and based on the distributable power, determine the power required for hydrogen production and the power required for nitrogen separation; the data processing unit 1 is also ... The data processing unit 1 is used to generate a hydrogen production instruction based on the amount of electricity required for hydrogen production, and to generate a nitrogen production instruction based on the amount of electricity required for nitrogen separation; the data processing unit 1 is also used to send the hydrogen production instruction and the nitrogen production instruction to the thermal power unit to control the thermal power unit to transport the amount of electricity required for hydrogen production and the amount of electricity required for nitrogen separation to the electrolytic hydrogen production device 2 and the air separation unit 7; the electrolytic hydrogen production device 2 is used to receive the amount of electricity required for hydrogen production to electrolyze water to generate hydrogen with a production corresponding to the amount of electricity required for hydrogen production; the air separation unit 7 is used to receive the amount of electricity required for nitrogen separation to separate nitrogen from air to obtain nitrogen with a production corresponding to the amount of electricity required for nitrogen separation; the ammonia synthesis device 9 is used to synthesize ammonia using the hydrogen with a production corresponding to the amount of electricity required for hydrogen production and the nitrogen with a production corresponding to the amount of electricity required for nitrogen separation when receiving the ammonia synthesis instruction sent by the user terminal.

[0029] It is understandable that the present invention will electrolyze water to generate hydrogen and separate nitrogen from the air to synthesize ammonia only when the power generation of the thermal power unit can meet the power consumption of the power grid system. The advantage of this is that it does not affect the peak load regulation of the thermal power unit and can ensure that the energy of the thermal power unit can be effectively consumed in a green way.

[0030] In one embodiment, the air separation unit 7 includes a compression device, a cooling device and an adsorbent.

[0031] In one embodiment, the ammonia synthesis device 9 includes a reactor, a catalyst and a heating device.

[0032] Specifically, the ammonia synthesis device 9 can communicate with the user terminal, so that when the ammonia synthesis device 9 receives the ammonia synthesis instruction sent by the user terminal, the fluid channel between the electrolytic hydrogen production device 2 and the air separation unit 7 and the ammonia synthesis device 9 will be opened, that is, the hydrogen and nitrogen in the electrolytic hydrogen production device 2 and the air separation unit 7 can flow to the ammonia synthesis device 9. In one embodiment, the data processing unit 1 is specifically used to: obtain the power consumption of the power grid system and the power generation of the thermal power unit; when the power generation of the thermal power unit is greater than the power consumption of the power grid system, calculate the difference between the power generation of the thermal power unit and the power consumption of the power grid system to obtain the allocable power; based on the allocable power, obtain the power required for hydrogen production, and calculate the difference between the allocable power and the power required by the electrolytic hydrogen production device 2 to obtain the power required for nitrogen separation; based on the power required for hydrogen production, generate a hydrogen production instruction, and based on the power required for nitrogen separation, generate a nitrogen production instruction; send the hydrogen production instruction and the nitrogen production instruction to the thermal power unit to control the thermal power unit to transport the power required for hydrogen production and the power required for nitrogen separation to the electrolytic hydrogen production device 2 and the air separation unit 7.

[0033] In one embodiment, the data processing unit (1) is further used to: calculate the allocable power and the energy consumption of the preset air separation unit 7 using the following formula to obtain the power required for hydrogen production; ;in, The amount of electricity required to produce hydrogen, Indicates the allocable power. Indicates the energy consumption of the preset air separation unit 7.

[0034] Specifically, in order to facilitate understanding of the formula, the formula is explained as follows: First, define the following variables: Q = total charge passing through the electrolytic cell (unit: coulomb, C) n H2 =Amount of hydrogen produced (unit: mole, mol) n O2 = Amount of oxygen produced (unit: mole, mol) F = Faraday constant (approximately 96485C / mol) According to the chemical reaction of water electrolysis: 2H2O=2H2+O2, we can know that 2 farads of electricity are required for each mol of hydrogen, and 4 farads of electricity are required for each mol of oxygen.

[0035] Therefore, the hydrogen production n H2 = , oxygen production n O2 = .

[0036] Based on the definition of electrical energy and the conversion relationship between basic electrical units, 1 kilowatt-hour (kWh) = 3,600,000 coulombs. We substitute the amount of electricity required for hydrogen production into it, so Q = *3600000.

[0037] Finally, the hydrogen production n H2 = , oxygen production n O2= .

[0038] To calculate the amount of nitrogen required to produce a certain amount of hydrogen to completely react to form ammonia (NH3).

[0039] The chemical reaction equation for synthesizing ammonia is: N2+3H2=2NH3. From the formula, we can see that every 1 mol of nitrogen requires 3 mol of hydrogen to completely react and produce 2 mol of ammonia.

[0040] As we know from the previous point, the hydrogen production n H2 = , so the nitrogen production required to completely react with hydrogen is n N2 = .

[0041] Furthermore, the calculated nitrogen production is in moles, so it needs to be converted into kg.

[0042] It is known that the molar mass of hydrogen is about 28 g / mol. To convert it to kg / mol, we divide 28 by 1000, so the molar mass of nitrogen is about 0.028 kg / mol. Then, the mass of nitrogen, m N2 =n N2 *0.028= .

[0043] It is known that nitrogen accounts for about 78% of the air, so when the mass of nitrogen is known, the mass of air corresponding to the mass of nitrogen can be calculated. Therefore, the mass of nitrogen divided by 78% can get the mass of air, that is, the mass of air m 空气 =m N2 / 0.78= .

[0044] Then, we set the energy consumption parameter of the air separation unit to (The unit is kWh / kg, which is the amount of electricity (kWh) required to process 1kg of air, and then according to Calculate the amount of electricity required for our air separation unit 7 to separate the mass of nitrogen we need from the calculated air mass, that is, the amount of electricity required for nitrogen separation ( ).

[0045] Electricity required for nitrogen separation: =m 空气* Energy consumption of air separation unit 7 = ;in, Represents the energy consumption of air separation unit 7.

[0046] Finally, what we want is that the sum of the electricity required for hydrogen production and the electricity required for nitrogen separation is equal to the distributable electricity. The distributable electricity is set to ,So ,and = , so the final formula is: .

[0047] Perform a final transformation on the formula to extract Common factors, then Moved aside alone, the formula becomes .

[0048] Specifically, regarding the energy consumption of the preset air separation unit, the embodiment of the present invention does not make any specific limitation on this, and it is determined according to the actually selected equipment.

[0049] In one embodiment, the electrolytic hydrogen production and ammonia synthesis system of a thermal power plant further includes: an oxygen purification device 3 and an oxygen storage device 4; the first input end of the oxygen purification device 3 is connected to the first output end of the electrolytic hydrogen production device 2, the output end of the oxygen purification device 3 is connected to the input end of the oxygen storage device 4, and the second input end of the oxygen purification device 3 is connected to the first output end of the air separation unit 7; the oxygen purification device 3 is used to purify the oxygen output corresponding to the electricity required for hydrogen production and the oxygen output corresponding to the electricity required for nitrogen separation to obtain purified oxygen; the oxygen storage device 4 is used to store the purified oxygen.

[0050] In one embodiment, the electrolytic hydrogen production and ammonia synthesis system of a thermal power plant also includes: a hydrogen purification device 5 and a hydrogen storage device 6; the input end of the hydrogen purification device 5 is connected to the second output end of the electrolytic hydrogen production device 2, the output end of the hydrogen purification device 5 is connected to the input end of the hydrogen storage device 6, and the output end of the hydrogen storage device 6 is connected to the first input end of the ammonia synthesis device 9; the hydrogen purification device 5 is used to purify the hydrogen produced corresponding to the amount of electricity required for hydrogen production to obtain purified hydrogen; the hydrogen storage device 6 is used to store the purified hydrogen.

[0051] In one embodiment, the thermal power plant electrolysis hydrogen production and ammonia synthesis system also includes: a nitrogen storage device 8 and an ammonia storage device 9; the input end of the nitrogen storage device 8 is connected to the second output end of the air separation unit 7, the output end of the nitrogen storage device 8 is connected to the second input end of the ammonia synthesis device 9, and the output end of the ammonia synthesis device 9 is connected to the input end of the ammonia storage device 9; the nitrogen storage device 8 is used to store the nitrogen output corresponding to the electricity required for nitrogen separation; the ammonia storage device 9 is used to store ammonia.

[0052] In one embodiment, the electrolytic hydrogen production device 2 includes a protective shell (not shown) and an electrolytic cell (not shown) disposed in the protective shell, and the electrolytic cell is a vertical electrolytic cell or a horizontal electrolytic cell.

[0053] Beneficial effects of the present invention: (1) Improving energy efficiency: The system can utilize the excess power generation capacity of thermal power units during low-load periods to produce hydrogen through water electrolysis and nitrogen through air separation, thereby improving overall energy efficiency and reducing energy waste.

[0054] (2) Promoting the consumption of renewable energy: When thermal power units use renewable energy to generate electricity, the system can better utilize this green electricity, promote the consumption of renewable energy, and reduce dependence on fossil energy.

[0055] (3) Reducing carbon emissions: Through the synthesis of ammonia, carbon dioxide emissions generated by direct combustion of fossil fuels can be reduced, which helps to achieve carbon reduction goals, improve environmental quality, and promote sustainable development.

[0056] (4) Improved economic benefits: Synthetic ammonia is an important chemical raw material, widely used in agricultural fertilizers, chemical production and other fields, and has high economic value. Through this system, thermal power plants can increase additional sources of income.

[0057] (5) Grid load regulation: The system can dynamically adjust the amount of hydrogen and nitrogen produced by electrolysis according to the real-time demand of the grid and the power generation of thermal power units, and provide auxiliary services for the grid, such as peak load regulation and energy storage, to enhance the stability and flexibility of the grid.

[0058] (6) Promoting the development of hydrogen economy: By producing hydrogen through electrolysis, the system provides a hydrogen source for the development of hydrogen economy, helping to promote the development of related industries such as hydrogen energy and fuel cells.

[0059] Embodiment 2 Based on the same inventive concept, Figure 2 As shown, the embodiment of the present invention further provides a method for synthesizing ammonia by electrolysis of hydrogen in a thermal power plant, which is implemented based on the above-mentioned system for synthesizing ammonia by electrolysis of hydrogen in a thermal power plant, and includes: S100, obtaining the power consumption of the power grid system and the power generation of the thermal power units; S200, when the power generation of the thermal power unit is greater than the power consumption of the power grid system, the difference between the power generation of the thermal power unit and the power consumption of the power grid system is calculated to obtain the allocable power; S300, based on the allocable electricity, the electricity required for hydrogen production is obtained, and the difference between the allocable electricity and the electricity required by the electrolytic hydrogen production device is calculated to obtain the electricity required for nitrogen separation; S400, generating a hydrogen production instruction based on the power required for hydrogen production, and generating a nitrogen production instruction based on the power required for nitrogen separation; S500, sending a hydrogen production instruction to a thermal power unit to control the thermal power unit to deliver the electricity required for hydrogen production to the electrolytic hydrogen production device, so that the electrolytic hydrogen production device receives the electricity required for hydrogen production to electrolyze water to generate hydrogen gas corresponding to the electricity required for hydrogen production; S600, sending a nitrogen production instruction to the thermal power unit to control the thermal power unit to deliver the power required for nitrogen separation to the air separation unit, so that the air separation unit receives the power required for nitrogen separation to separate nitrogen from air, and obtains nitrogen with the power required for nitrogen separation; S700, when receiving an ammonia synthesis instruction sent by a user terminal, synthesize ammonia using hydrogen corresponding to the output of electricity required for hydrogen production and nitrogen corresponding to the output of electricity required for nitrogen separation.

[0060] It should be understood that the method corresponds to the above-mentioned embodiment of the system for synthesizing ammonia by electrolysis of hydrogen in a thermal power plant. The specific functions of the method can be found in the description above. To avoid repetition, the detailed description is appropriately omitted here.

[0061] Embodiment 3 Based on the same inventive concept, an embodiment of the present invention also provides an electronic device, including: a processor and a memory, the memory storing machine-readable instructions executable by the processor, and the machine-readable instructions, when executed by the processor, execute the above-mentioned method for synthesizing ammonia by electrolyzing hydrogen in a thermal power plant.

[0062] In a typical configuration, an electronic device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0063] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0064] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0065] Embodiment 4 Based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium storing computer instructions. When the computer instructions are executed on a computer, the computer executes the above-mentioned method for synthesizing ammonia by electrolyzing hydrogen in a thermal power plant.

[0066] 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 contain computer-usable program code.

[0067] 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.

[0068] 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 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0069] 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.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0071] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0072] 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.

[0073] The above are only embodiments of the present application and are 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 within the scope of the claims of the present application.

Claims

1. A system for synthesizing ammonia by electrolysis of hydrogen in a thermal power plant, characterized in that: include: A data processing unit (1), an electrolytic hydrogen production device (2), an air separation unit (7) and an ammonia synthesis device (9); the data processing unit (1) is communicatively connected to the electrolytic hydrogen production device (2) and the air separation unit (7), respectively; the output end of the electrolytic hydrogen production device (2) is communicated with the first input end of the ammonia synthesis device (9), and the output end of the air separation unit (7) is communicated with the second input end of the ammonia synthesis device (9); The data processing unit (1) is used to calculate the difference between the power generation of the thermal power generation unit and the power consumption of the power grid system when the power generation of the thermal power generation unit is greater than the power consumption of the power grid system, obtain the allocable power, and determine the power required for hydrogen production and the power required for nitrogen separation based on the allocable power; The data processing unit (1) is further used to generate a hydrogen production instruction based on the amount of electricity required for hydrogen production, and to generate a nitrogen production instruction based on the amount of electricity required for nitrogen separation; The data processing unit (1) is also used to send a hydrogen production instruction and a nitrogen production instruction to the thermal power unit, so as to control the thermal power unit to transmit the electricity required for hydrogen production and the electricity required for nitrogen separation to the electrolytic hydrogen production device (2) and the air separation unit (7); The electrolytic hydrogen production device (2) is used to receive the electricity required for hydrogen production and electrolyze water to generate hydrogen gas with an output corresponding to the electricity required for hydrogen production; An air separation unit (7) is used to receive the electricity required for nitrogen separation and perform nitrogen separation on air to obtain nitrogen in an amount of the electricity required for nitrogen separation; The ammonia synthesis device (9) is used to synthesize ammonia by using hydrogen with an output corresponding to the electricity required for hydrogen production and nitrogen with an output corresponding to the electricity required for nitrogen separation when receiving an ammonia synthesis instruction sent by a user terminal.

2. The system for producing ammonia by electrolysis of hydrogen in a thermal power plant according to claim 1, characterized in that: The data processing unit (1) is specifically used for: Obtain the power consumption of the power grid system and the power generation of thermal power units; When the power generation of the thermal power unit is greater than the power consumption of the power grid system, the difference between the power generation of the thermal power unit and the power consumption of the power grid system is calculated to obtain the allocable power; Based on the allocable electricity, the electricity required for hydrogen production is obtained, and the difference between the allocable electricity and the electricity required by the electrolytic hydrogen production device (2) is calculated to obtain the electricity required for nitrogen separation; Generate a hydrogen production instruction based on the power required for hydrogen production, and generate a nitrogen production instruction based on the power required for nitrogen separation; The hydrogen production instruction and the nitrogen production instruction are sent to the thermal power generation unit to control the thermal power generation unit to deliver the electricity required for hydrogen production and the electricity required for nitrogen separation to the electrolytic hydrogen production device (2) and the air separation unit (7).

3. The system for producing ammonia by electrolysis of hydrogen in a thermal power plant according to claim 2, characterized in that: The data processing unit (1) is further specifically used for: The following formula is used to calculate the allocable power and the energy consumption of the preset air separation unit to obtain the power required for hydrogen production; ;in, The amount of electricity required to produce hydrogen, Indicates the allocable power. Indicates the energy consumption of the preset air separation unit.

4. The system for producing ammonia by electrolysis of hydrogen in a thermal power plant according to claim 1, characterized in that: Also includes: An oxygen purification device (3) and an oxygen storage device (4); The first input end of the oxygen purification device (3) is connected to the first output end of the electrolytic hydrogen production device (2), the output end of the oxygen purification device (3) is connected to the input end of the oxygen storage device (4), and the second input end of the oxygen purification device (3) is connected to the first output end of the air separation unit (7); The oxygen purification device (3) is used to purify the oxygen produced corresponding to the electricity required for hydrogen production and the oxygen produced corresponding to the electricity required for nitrogen separation to obtain purified oxygen; The oxygen storage device (4) is used to store the purified oxygen.

5. The system for producing ammonia by electrolysis of hydrogen in a thermal power plant according to claim 4, characterized in that: Also includes: A hydrogen purification device (5) and a hydrogen storage device (6); The input end of the hydrogen purification device (5) is connected to the second output end of the electrolytic hydrogen production device (2), the output end of the hydrogen purification device (5) is connected to the input end of the hydrogen storage device (6), and the output end of the hydrogen storage device (6) is connected to the first input end of the ammonia synthesis device (9); The hydrogen purification device (5) is used to purify the hydrogen produced corresponding to the amount of electricity required for hydrogen production to obtain purified hydrogen; The hydrogen storage device (6) is used to store the purified hydrogen.

6. The system for producing ammonia by electrolysis of hydrogen in a thermal power plant according to claim 5, characterized in that: Also includes: A nitrogen storage device (8) and an ammonia storage device (9); The input end of the nitrogen storage device (8) is connected to the second output end of the air separation unit (7), the output end of the nitrogen storage device (8) is connected to the second input end of the ammonia synthesis device (9), and the output end of the ammonia synthesis device (9) is connected to the input end of the ammonia storage device (9); The nitrogen storage device (8) is used to store nitrogen produced in an amount corresponding to the amount of electricity required for nitrogen separation; The ammonia storage device (9) is used to store ammonia.

7. The system for producing hydrogen and synthesizing ammonia by electrolysis in a thermal power plant according to claim 1, characterized in that: The electrolytic hydrogen production device (2) comprises a protective shell and an electrolytic cell arranged in the protective shell, wherein the electrolytic cell is a vertical electrolytic cell or a horizontal electrolytic cell.

8. A method for producing ammonia by electrolysis of hydrogen in a thermal power plant, which is implemented based on the system for producing ammonia by electrolysis of hydrogen in a thermal power plant according to any one of claims 1 to 7, characterized in that: include: Obtain the power consumption of the power grid system and the power generation of thermal power units; When the power generation of the thermal power unit is greater than the power consumption of the power grid system, the difference between the power generation of the thermal power unit and the power consumption of the power grid system is calculated to obtain the allocable power; Based on the allocable electricity, the electricity required for hydrogen production is obtained, and the difference between the allocable electricity and the electricity required by the electrolytic hydrogen production device is calculated to obtain the electricity required for nitrogen separation; Generate a hydrogen production instruction based on the power required for hydrogen production, and generate a nitrogen production instruction based on the power required for nitrogen separation; The hydrogen production instruction is sent to the thermal power unit to control the thermal power unit to deliver the electricity required for hydrogen production to the electrolytic hydrogen production device, so that the electrolytic hydrogen production device receives the electricity required for hydrogen production to electrolyze water to generate hydrogen gas corresponding to the electricity required for hydrogen production; Sending a nitrogen production instruction to a thermal power unit to control the thermal power unit to deliver the power required for nitrogen separation to an air separation unit, so that the air separation unit receives the power required for nitrogen separation to separate nitrogen from air, and obtains nitrogen of the power required for nitrogen separation; When an ammonia synthesis instruction is received from a user terminal, ammonia is synthesized using hydrogen corresponding to the output of electricity required for hydrogen production and nitrogen corresponding to the output of electricity required for nitrogen separation.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the method for producing ammonia by electrolysis of hydrogen in a thermal power plant according to any one of claims 1-7 is executed.

10. A computer-readable storage medium storing computer instructions, characterized in that: When the computer instructions are executed on a computer, the computer is enabled to execute the method for producing ammonia by electrolysis of hydrogen in a thermal power plant according to any one of claims 1 to 7.

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