CN114196968A - Solid oxide water electrolysis hydrogen production device and operation control method thereof - Google Patents

Solid oxide water electrolysis hydrogen production device and operation control method thereof Download PDF

Info

Publication number
CN114196968A
CN114196968A CN202111489375.5A CN202111489375A CN114196968A CN 114196968 A CN114196968 A CN 114196968A CN 202111489375 A CN202111489375 A CN 202111489375A CN 114196968 A CN114196968 A CN 114196968A
Authority
CN
China
Prior art keywords
module
hydrogen production
solid oxide
electrolysis
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111489375.5A
Other languages
Chinese (zh)
Other versions
CN114196968B (en
Inventor
陈刚
马芳平
李林
姚福明
郭金婷
柳玉兰
孙延黎
彭放
杨国玉
王健馨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guodian Dadu River Hydropower Development Co Ltd
Original Assignee
Guodian Dadu River Hydropower Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guodian Dadu River Hydropower Development Co Ltd filed Critical Guodian Dadu River Hydropower Development Co Ltd
Priority to CN202111489375.5A priority Critical patent/CN114196968B/en
Publication of CN114196968A publication Critical patent/CN114196968A/en
Application granted granted Critical
Publication of CN114196968B publication Critical patent/CN114196968B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C25B1/042—Hydrogen or oxygen by electrolysis of water by electrolysis of steam
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C25B15/021—Process control or regulation of heating or cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/133—Renewable energy sources, e.g. sunlight

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The embodiment of the invention provides a solid oxide water electrolysis hydrogen production device and an operation control method thereof, relating to the technical field of water electrolysis hydrogen production. The apparatus includes a steam generator that can be electrically or gas heated simultaneously or separately and an electrolytic cell that can be electrically or gas heated simultaneously or separately. The operation control method can determine the hydrogen production operation mode of the solid oxide water electrolysis hydrogen production device and the thermal standby mode of the electrolytic cell and the steam generator according to the renewable energy power generation electricity discard quantity of the current working period or the predicted next working period and by combining the residual capacity of the hydrogen storage module and through the judgment conditions set in the operation control method, so that the solid oxide water electrolysis hydrogen production device works in a strong working mode, a weak working mode, an electric standby mode and an air standby mode or a closing device, the electricity discard is economically utilized, and the whole hydrogen production and storage system is in an economically optimal operation state.

Description

Solid oxide water electrolysis hydrogen production device and operation control method thereof
Technical Field
The invention relates to the technical field of hydrogen production by water electrolysis, in particular to a hydrogen production device by water electrolysis of solid oxide and an operation control method thereof.
Background
In recent years, with the increasing installed capacity of renewable energy sources, the problems of wind abandoning, light abandoning and water abandoning become more and more severe. Therefore, the consumption and storage of surplus renewable energy are important problems to be solved urgently in the current energy health development.
The energy storage technology is a necessary way for solving the problem of 'three abandons' — renewable energy power generation is stored and released when needed, so as to ensure the continuous and stable electric energy output of the renewable energy power generation and improve the capacity of a power grid for receiving intermittent renewable energy.
Compared with other energy storage technologies, hydrogen is used as an energy storage medium, has the advantages of high energy density, high energy supplementing speed, good low-temperature adaptability, greenness, cleanness, low carbon, high efficiency and the like, is very suitable for being used as a long-period energy storage means, and solves the problems of unbalanced time period, unbalanced season and the like of wind power generation and photovoltaic power generation. The hydrogen energy can be obtained by water electrolysis technology, and can also be converted into electric energy by fuel cell technology. Therefore, the hydrogen energy storage technology is large-scale, season-crossing, time-period-crossing and region-crossing energy storage which cannot be realized by the traditional power grid, and becomes a sharp instrument for promoting the consumption of renewable energy.
Electrolyzed water is an important component of hydrogen energy storage technology. The working temperature of the high-temperature solid oxide water electrolysis hydrogen production technology is 600-950 ℃, the high-temperature working environment enables the high-temperature solid oxide water electrolysis hydrogen production technology to have higher conversion efficiency than other water electrolysis hydrogen production technologies, but the problem of the need of maintaining the high-temperature working environment is also brought, especially when the high-temperature solid oxide water electrolysis hydrogen production technology is applied to intermittent renewable energy hydrogen production, frequent start-up and stop or temperature reduction causes the working temperature to be not constant, the start-up time is increased, the conversion efficiency is reduced, and the hydrogen production cost is increased.
Disclosure of Invention
The invention aims to provide a solid oxide water electrolysis hydrogen production device and an operation control method thereof, which can enable the whole hydrogen production and storage system to be in an economically optimal operation state.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a solid oxide water electrolysis hydrogen production device, which comprises a steam generator and an electrolytic cell, wherein the steam generator comprises a vaporization module, an electric heating module and a gas heat preservation module, the vaporization module can be heated by the electric heating module and the gas heat preservation module simultaneously or independently, the electrolytic cell comprises an electrolysis module, the electric heat preservation module and the gas heating module, and the electrolysis module can be heated by the electric heat preservation module and the gas heating module simultaneously or independently.
In an alternative embodiment, the gas heat preservation module comprises a main pipeline communicated with the gas heating module, capillary pipelines uniformly arranged at the bottom and the periphery of the vaporization module and a tail gas discharge pipeline.
In an optional embodiment, the main pipeline receives the residual heat generated after the gas heating module heats the electrolytic cell, and transmits heat energy to the bottom and the periphery of the vaporization module through the capillary pipeline so as to maintain the working environment of the vaporization module above 200 ℃, and exhausts tail gas through the exhaust pipeline.
In an alternative embodiment, the gas heating module comprises a pipeline communicated with the hydrogen storage module, capillary pipelines uniformly arranged around each electrolysis chamber of the electrolysis module, and a waste heat supply pipeline communicated with the gas heat preservation module.
In an optional embodiment, the gas heating module is used for being communicated with the hydrogen storage module through a pipeline, obtaining hydrogen with a constant flow from the hydrogen storage module and obtaining heat energy through combustion, transmitting the heat energy to the periphery of each electrolysis small chamber of the electrolysis module through a capillary pipeline, maintaining the working environment of the electrolysis module at the temperature of more than 600 ℃, and supplying the waste heat to the gas heat preservation module through a communication pipeline.
In an alternative embodiment, the maximum produced steam production of the steam generator is greater than the steam flow required to operate the electrolysis module at maximum power.
In a second aspect, the present invention provides a method for controlling the operation of a solid oxide water electrolysis hydrogen production apparatus, which is used for controlling the solid oxide water electrolysis hydrogen production apparatus according to any one of the foregoing embodiments.
In an alternative embodiment, the operation control method of the solid oxide electrolytic water hydrogen production apparatus comprises:
in an alternative embodiment, the operation control method of the solid oxide electrolytic water hydrogen production apparatus includes:
s1: judging whether the abandoned electric power of the current working period can maintain the electric standby mode; if yes, the process goes to S2, otherwise, the process goes to S6;
s2: judging whether the abandoned electric power of the current working period can enable the electric heating module, the electrolysis module and the compressor to operate at the maximum power;
s6: predicting and judging whether the electric power abandon of the next working period can maintain the electric standby mode, if so, entering S7, and if not, closing the device;
s7: judging whether the residual hydrogen storage capacity is larger than the minimum hydrogen consumption required by the maintenance gas standby mode, if so, entering S11: and executing the gas standby mode, and if not, closing the device.
In an alternative embodiment, the operation control method of the solid oxide electrolytic water hydrogen production apparatus comprises: if yes, the process proceeds to S3 at S2; otherwise, go to S5;
s3: judging whether the residual capacity of the hydrogen storage device is larger than the maximum hydrogen production amount of the working cycle, if so, entering S8: executing a strong working mode, if not, entering S4;
s4: judging whether the residual capacity of the hydrogen storage module is larger than the minimum hydrogen production in the working cycle, if so, entering S9: executing a weak working mode; otherwise, proceed to S10: executing an electrical standby mode;
s5: and judging whether the electric power abandoning of the current working period can enable the electric heating module, the electrolytic cell module and the compressor to operate at the minimum power.
In an alternative embodiment, the operation control method of the solid oxide electrolytic water hydrogen production apparatus comprises: if yes, the process proceeds to S4 at S5; otherwise, the process proceeds to S10.
The hydrogen production device by electrolyzing water by solid oxide and the operation control method thereof provided by the embodiment of the invention have the beneficial effects that:
1. the steam generator and the electrolytic cell can maintain a hot standby state by two modes of electricity heating and hydrogen combustion heat generation, so that the starting times of the solid oxide water electrolysis hydrogen production device can be reduced, the starting time is shortened, the conversion efficiency is improved, and the hydrogen production cost is reduced;
2. in the gas standby mode, the steam generator uses the waste heat generated by the gas heating module of the electrolytic cell to preserve heat of the vaporization module, so that the heat standby cost can be further reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a solid oxide hydrogen production apparatus by water electrolysis and related apparatus according to an embodiment of the present invention;
fig. 2 is a flowchart of an operation control method of a solid oxide water electrolysis hydrogen production apparatus according to an embodiment of the present invention.
Icon: 100-a hydrogen production device by water electrolysis of solid oxide; 110-a steam generator; 111-a vaporization module; 112-an electrical heating module; 113-a gas insulation module; 120-an electrolytic cell; 121-an electrolysis module; 122-an electrical insulation module; 123-a gas heating module; 200-a compressor; 300-hydrogen storage module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, the present embodiment provides a solid oxide electrolyzed water hydrogen production apparatus 100, where the solid oxide electrolyzed water hydrogen production apparatus 100 includes a steam generator 110 and an electrolytic cell 120. Among them, the steam generator 110 includes a vaporizing module 111, an electric heating module 112, and a gas insulation module 113. The electrolytic cell 120 includes an electrolysis module 121, an electrical incubation module 122, and a gas heating module 123. Other devices related to the operation of the solid oxide electrolytic water hydrogen production apparatus 100 include a compressor 200 and a hydrogen storage module 300. The vaporization module 111 is communicated with the electrolysis module 121 and the compressor 200 sequentially through gas circuits, the compressor 200, the hydrogen storage module 300 and the gas heating module 123 are communicated sequentially, the vaporization module 111 can be heated by the electric heating module 112 and the gas heat preservation module 113 simultaneously or independently, and the electrolysis module 121 can be heated by the electric heat preservation module 122 and the gas heating module 123 simultaneously or independently. In addition, the solid oxide electrolytic water hydrogen production apparatus 100 also includes conventional components, such as: the device comprises a water tank, a water pump, a rectifying device, a control device, a communication device, a gas drying and purifying assembly, a gas purity detection assembly, a gas leakage monitoring assembly and the like.
Specifically, the maximum produced steam production of steam generator 110 is greater than the steam flow required when electrolysis module 121 is operating at maximum power, so that steam production does not become a limiting condition for regulating hydrogen production.
The electric heating module 112 is mainly composed of electric heating wires, and is uniformly arranged at the bottom and around the vaporization module 111. Power of the electric heating module 112
Figure BDA0003398568590000051
The operating range of (c):
Figure BDA0003398568590000052
wherein the content of the first and second substances,
Figure BDA0003398568590000053
for the lowest power of the electrical heating module 112,
Figure BDA0003398568590000054
the highest power of the electrical heating module 112.
The gas heat preservation module 113 comprises a main pipeline communicated with the gas heating module 123 of the electrolytic cell 120, capillary pipelines uniformly arranged at the bottom and around the vaporization module 111, and a tail gas discharge pipeline. The main pipeline receives the residual heat generated after the gas heating module 123 heats the electrolytic cell 120, and transmits heat energy to the bottom and the periphery of the vaporization module 111 through a capillary pipeline, so as to maintain the working environment of the vaporization module 111 at more than 200 ℃, and finally, the tail gas is discharged through a discharge pipeline.
Power of electrolysis module 121
Figure BDA0003398568590000061
The operating range of (c):
Figure BDA0003398568590000062
wherein the content of the first and second substances,
Figure BDA0003398568590000063
is the lowest power of the electrolysis module 121,
Figure BDA0003398568590000064
the highest power of the electrolysis module 121.
Hydrogen production of the electrolysis module 121
Figure BDA0003398568590000065
The operating range of (c):
Figure BDA0003398568590000066
wherein the content of the first and second substances,
Figure BDA0003398568590000067
is the lowest hydrogen production of the electrolysis module 121,
Figure BDA0003398568590000068
is the highest hydrogen production of the electrolysis module 121.
Power of the electrical insulation module 122
Figure BDA0003398568590000069
The operating range of (c):
Figure BDA00033985685900000610
wherein the content of the first and second substances,
Figure BDA00033985685900000611
at the lowest power of the electrical keep-warm module 122,
Figure BDA00033985685900000612
the highest power of the electrical keep warm module 122.
The gas heating module 123 is communicated with the hydrogen storage module 300 through a pipeline, and obtains a constant flow Q from the hydrogen storage module 30033The hydrogen gas is combusted to obtain heat energy, and high-grade heat energy is transmitted to the periphery of each electrolysis cell of the electrolysis module 121 through a capillary pipeline to maintain the working environment of the electrolysis module 121 above 600 ℃, and low-grade waste heat is supplied to the gas heat-preservation module 113 of the steam generator 110 through a communication pipeline.
The maximum compressed hydrogen flow rate of compressor 200 is greater than the hydrogen flow rate produced when electrolysis module 121 is operating at maximum power so that the compression rate does not become a limiting condition for regulating hydrogen production. Power of compressor 200
Figure BDA00033985685900000613
The operating range of (c):
Figure BDA00033985685900000614
wherein the content of the first and second substances,
Figure BDA00033985685900000615
at the lowest operating power of the compressor 200,
Figure BDA00033985685900000616
the highest operating power of the compressor 200.
The hydrogen storage module 300 employs a high pressure gaseous hydrogen storage technology. The remaining available capacity of the hydrogen storage module 300 is
Figure BDA00033985685900000617
Other elements related to the operation of the solid oxide electrolyzed water hydrogen production apparatus 100 include: the renewable energy power station cannot timely consume the electric energy generated by the renewable energy source, so that electricity abandon without direct economic value is generated. Setting the electricity discard amount of the current working period as
Figure BDA00033985685900000618
The electricity discard amount of the next working cycle is
Figure BDA00033985685900000619
The working period t refers to a period of time specified according to the operating characteristics of the renewable energy sources and the working time of the production personnel, so that the enterprise can simplify the operation mode of the production organization. The working period t provided by this embodiment is: when the electricity is abandoned by utilizing hydroelectric power and solar power, the working period is 1 day; when the electricity abandoning generated by wind power is utilized, the work period is 8 hours.
The embodiment further provides an operation control method based on the solid oxide water electrolysis hydrogen production device 100, which includes determining a hydrogen production operation mode of the solid oxide water electrolysis hydrogen production device 100 and a thermal standby mode of the electrolytic cell 120 and the steam generator 110 according to a current working cycle or a predicted electricity discarding amount of a next working cycle and by combining with the residual capacity of the hydrogen storage module 300 and by setting a judgment condition, so that the solid oxide water electrolysis hydrogen production device 100 operates in four working modes, i.e., a strong working mode, a weak working mode, an electric standby mode, and a gas standby mode, or the device is turned off, so that the electricity discarding is economically utilized.
Wherein, the strong operation mode means that the electric heating module 112 of the steam generator 110, the electrolysis module 121 of the electrolysis cell 120 and the compressor 200 are all operated in a state adapted to the maximum hydrogen production, that is:
Figure BDA0003398568590000071
Figure BDA0003398568590000072
Figure BDA0003398568590000073
the weak operation mode refers to that the electric heating module 112 of the steam generator 110, the electrolysis module 121 of the electrolysis cell 120 and the compressor 200 are matched to obtain the optimal hydrogen production according to the power-flow curve of each device under the boundary limit of the total electric power, so as to realize that:
Figure BDA0003398568590000074
the hot standby state is a state in which a certain amount of energy is consumed to maintain a minimum operating temperature in order to enable the steam generator 110 and the electrolytic cell 120 in the solid oxide electrolytic water hydrogen production apparatus 100 to quickly enter a normal operating state from the standby state. The power required for the hot standby state is equal to the sum of the minimum power of the electric heating module 112 of the steam generator 110 and the minimum power of the electric keeping warm module 122 of the electrolytic cell 120. In the hot standby state, the hydrogen production apparatus 100 does not produce hydrogen gas by the solid oxide electrolysis of water.
The electric standby mode refers to an operation mode in which a thermal standby mode is maintained by heating using electric energy.
The gas standby mode is an operation mode in which a hot standby mode is maintained by using a hydrogen combustion heating method.
Referring to fig. 2, after the solid oxide hydrogen production apparatus 100 by electrolyzing water is started, the operation control method of the solid oxide hydrogen production apparatus 100 by electrolyzing water provided by the embodiment includes the following steps:
s1: judging whether the electric power abandoning of the current work period can maintain the electric standby mode, namely judging whether the electric power abandoning meets the requirement
Figure BDA0003398568590000075
If it is
Figure BDA0003398568590000076
Proceed to S2; otherwise, the process proceeds to S6.
S2: judging whether the electric power abandoning of the current working period can enable the electric heating module 112, the electrolysis module 121 and the compressor 200 to operate at the maximum power, namely judging whether the maximum power is met
Figure BDA0003398568590000081
If it is
Figure BDA0003398568590000082
Proceed to S3; otherwise, the process proceeds to S5.
S3: judging whether the residual capacity of the hydrogen storage device is larger than the maximum hydrogen production in the working period, namely judging whether the residual capacity meets the requirement
Figure BDA0003398568590000083
If it is
Figure BDA0003398568590000084
Proceed to S8: executing a strong working mode; otherwise, the process proceeds to S4.
S4: judging whether the residual capacity of the hydrogen storage module 300 is larger than the minimum hydrogen production amount of the work cycle, namely judging whether the residual capacity is satisfied
Figure BDA0003398568590000085
If it is
Figure BDA0003398568590000086
Proceed to S9: executing a weak working mode; otherwise, proceed to S10: an electrical standby mode is performed.
S5: judging whether the electric power abandonment of the current working period can enable the electric heating module 112, the electrolytic module 121 of the electrolytic cell 120 and the compressor 200 to operate at the minimum power, namely judging whether the minimum power is met
Figure BDA0003398568590000087
Figure BDA0003398568590000088
If it is
Figure BDA0003398568590000089
Proceed to S4; otherwise, proceed to S10: an electrical standby mode is performed.
S6: predicting whether the power-off power of the next working period can maintain the electric standby mode, i.e. determining whether the power-off power of the next working period satisfies
Figure BDA00033985685900000810
If it is
Figure BDA00033985685900000811
Proceed to S7; otherwise, the device is turned off.
S7: judging whether the residual hydrogen storage capacity is larger than the minimum hydrogen consumption required by the maintenance gas standby mode, namely judging whether the hydrogen storage capacity meets the requirement
Figure BDA00033985685900000812
If it is
Figure BDA00033985685900000813
Proceed to S11: executing a gas standby mode; otherwise, the device is turned off.
S12: when one work cycle is finished, the next work cycle is entered, and the process returns to S1.
The hydrogen production device 100 by electrolyzing water by solid oxide and the operation control method thereof provided by the embodiment of the invention have the beneficial effects that:
1. the hydrogen production operation mode of the solid oxide electrolyzed water hydrogen production device 100 and the thermal standby mode of the electrolytic cell 120 and the steam generator 110 can be determined according to the current working cycle or the predicted electricity discard amount of the next working cycle and by combining the residual capacity of the hydrogen storage module 300, so that the whole hydrogen production and storage system is in an economically optimal operation state;
2. the steam generator 110 and the electrolytic cell 120 can maintain a hot standby state by two modes of electric heating and hydrogen combustion heat generation, so that the starting times of the solid oxide water electrolysis hydrogen production device 100 can be reduced, the starting time is shortened, the conversion efficiency is improved, and the hydrogen production cost is reduced;
3. in the gas standby mode, the steam generator 110 uses the waste heat generated by the gas heating module 123 of the electrolytic cell 120 to keep the temperature of the vaporization module 111, so as to further reduce the heat standby cost.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A solid oxide electrolyzed water hydrogen production apparatus is characterized in that the apparatus comprises a steam generator (110) and an electrolytic cell (120), the steam generator (110) comprises a vaporization module (111), an electric heating module (112) and a gas heat preservation module (113), the vaporization module (111) can be heated by the electric heating module (112) and the gas heat preservation module (113) simultaneously or separately, the electrolytic cell (120) comprises an electrolysis module (121), an electric heat preservation module (122) and a gas heating module (123), and the electrolysis module (121) can be heated by the electric heat preservation module (122) and the gas heating module (123) simultaneously or separately.
2. The solid oxide electrolytic water hydrogen production plant according to claim 1, wherein the gas heat preservation module (113) comprises a main pipeline communicated with the gas heating module (123), capillary pipelines uniformly arranged at the bottom and around the vaporization module (111), and a tail gas discharge pipeline.
3. The solid oxide electrolytic water hydrogen production device as claimed in claim 2, wherein the main pipeline receives the residual heat of the gas heating module (123) after heating the electrolytic cell (120), and transmits the heat energy to the bottom and the periphery of the vaporization module (111) through the capillary pipeline so as to maintain the working environment of the vaporization module (111) above 200 ℃, and exhausts the tail gas through the exhaust pipeline.
4. The solid oxide electrolytic water hydrogen production device according to claim 1, wherein the gas heating module (123) comprises a pipeline communicated with the hydrogen storage module (300), a capillary pipeline uniformly arranged around each electrolysis chamber of the electrolysis module (121), and a residual heat supply pipeline communicated with the gas heat preservation module (113).
5. The solid oxide electrolytic water hydrogen production device according to claim 4, wherein the gas heating module (123) is used for communicating with the hydrogen storage module (300) through a pipeline, obtaining a constant flow of hydrogen from the hydrogen storage module (300) and obtaining heat energy through combustion, transmitting the heat energy to the periphery of each electrolysis chamber of the electrolysis module (121) through the capillary pipeline, maintaining the working environment of the electrolysis module (121) above 600 ℃, and supplying the residual heat to the gas heat insulation module (113) through a communication pipeline.
6. A solid oxide electrolytic water hydrogen plant according to claim 1, characterized in that the maximum production steam production of the steam generator (110) is larger than the steam flow required when the electrolysis module (121) is operated at maximum power.
7. An operation control method of a solid oxide water electrolysis hydrogen production device is characterized in that the operation control method of the solid oxide water electrolysis hydrogen production device is used for controlling the solid oxide water electrolysis hydrogen production device according to any one of claims 1 to 5.
8. The operation control method of a solid oxide electrolysis water hydrogen production apparatus according to claim 7, characterized by comprising:
s1: judging whether the abandoned electric power of the current working period can maintain the electric standby mode; if yes, the process goes to S2, otherwise, the process goes to S6;
s2: judging whether the abandoned electric power of the current working period can enable the electric heating module (112), the electrolysis module (121) and the compressor (200) to operate at the maximum power;
s6: predicting and judging whether the electric power abandon of the next working period can maintain the electric standby mode, if so, entering S7, and if not, closing the device;
s7: judging whether the residual hydrogen storage capacity is larger than the minimum hydrogen consumption required by the maintenance gas standby mode, if so, entering S11: and executing the gas standby mode, and if not, closing the device.
9. The operation control method of a solid oxide electrolysis water hydrogen production apparatus according to claim 8, characterized by comprising: if yes, the process proceeds to S3 at S2; otherwise, go to S5;
s3: judging whether the residual capacity of the hydrogen storage device is larger than the maximum hydrogen production amount of the working cycle, if so, entering S8: executing a strong working mode, if not, entering S4;
s4: judging whether the residual capacity of the hydrogen storage module (300) is larger than the minimum hydrogen production amount of the work cycle, if so, entering S9: executing a weak working mode; otherwise, proceed to S10: executing an electrical standby mode;
s5: and judging whether the electric power abandoning of the current work period can enable the electric heating module (112), the electrolytic cell (120), the electrolytic module (121) and the compressor (200) to operate at the minimum power.
10. The operation control method of a solid oxide electrolysis water hydrogen production apparatus according to claim 9, characterized by comprising: if yes, the process proceeds to S4 at S5; otherwise, the process proceeds to S10.
CN202111489375.5A 2021-12-08 2021-12-08 Solid oxide water electrolysis hydrogen production device and operation control method thereof Active CN114196968B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111489375.5A CN114196968B (en) 2021-12-08 2021-12-08 Solid oxide water electrolysis hydrogen production device and operation control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111489375.5A CN114196968B (en) 2021-12-08 2021-12-08 Solid oxide water electrolysis hydrogen production device and operation control method thereof

Publications (2)

Publication Number Publication Date
CN114196968A true CN114196968A (en) 2022-03-18
CN114196968B CN114196968B (en) 2023-11-24

Family

ID=80651150

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111489375.5A Active CN114196968B (en) 2021-12-08 2021-12-08 Solid oxide water electrolysis hydrogen production device and operation control method thereof

Country Status (1)

Country Link
CN (1) CN114196968B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114752950A (en) * 2022-05-16 2022-07-15 中国标准化研究院 Wave type power input hydrogen production method and device by electrolyzing water

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481617A (en) * 2014-11-03 2015-04-01 东南大学 Energy storing device based on redox reaction and energy storing method and generating method thereof
EP3168330A1 (en) * 2014-07-11 2017-05-17 Kabushiki Kaisha Toshiba Apparatus and method for hydrogen production using high-temperature water vapor electrolysis
CN107017634A (en) * 2017-04-11 2017-08-04 赫普热力发展有限公司 The system that a kind of electrolytic hydrogen production is combined with nuclear power station flexibility peak regulation
CN207603212U (en) * 2017-05-28 2018-07-10 赫普热力发展有限公司 The system that a kind of electrolytic hydrogen production is combined with nuclear power station flexibility peak regulation
CN113503191A (en) * 2021-06-18 2021-10-15 华南理工大学 Comprehensive utilization system for hydrogen production by nuclear power generation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168330A1 (en) * 2014-07-11 2017-05-17 Kabushiki Kaisha Toshiba Apparatus and method for hydrogen production using high-temperature water vapor electrolysis
CN104481617A (en) * 2014-11-03 2015-04-01 东南大学 Energy storing device based on redox reaction and energy storing method and generating method thereof
CN107017634A (en) * 2017-04-11 2017-08-04 赫普热力发展有限公司 The system that a kind of electrolytic hydrogen production is combined with nuclear power station flexibility peak regulation
CN207603212U (en) * 2017-05-28 2018-07-10 赫普热力发展有限公司 The system that a kind of electrolytic hydrogen production is combined with nuclear power station flexibility peak regulation
CN113503191A (en) * 2021-06-18 2021-10-15 华南理工大学 Comprehensive utilization system for hydrogen production by nuclear power generation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114752950A (en) * 2022-05-16 2022-07-15 中国标准化研究院 Wave type power input hydrogen production method and device by electrolyzing water

Also Published As

Publication number Publication date
CN114196968B (en) 2023-11-24

Similar Documents

Publication Publication Date Title
Wang et al. Hydrogen fuel and electricity generation from a new hybrid energy system based on wind and solar energies and alkaline fuel cell
Alirahmi et al. Electrolyzer-fuel cell combination for grid peak load management in a geothermal power plant: Power to hydrogen and hydrogen to power conversion
US10340693B2 (en) Systems and methods for generating energy using a hydrogen cycle
CN113249736B (en) Water electrolysis hydrogen and heat cogeneration system and method integrating renewable energy
CN106817067A (en) A kind of provide multiple forms of energy to complement each other co-generation unit and method of work based on fuel cell
US20130252121A1 (en) Systems and methods for generating oxygen and hydrogen for plant equipment
KR20120103777A (en) New renewable energy hybrid power generation system
Zheng et al. Multi-criteria performance analysis and optimization of a solar-driven CCHP system based on PEMWE, SOFC, TES, and novel PVT for hotel and office buildings
CN114150331A (en) Electrolytic hydrogen production waste heat utilization system
CN114318360A (en) Heat management's circulation heat transfer system
CN105757978B (en) A kind of boat-carrying heat pump water heater system and heating method
CN114196968B (en) Solid oxide water electrolysis hydrogen production device and operation control method thereof
CN110245863A (en) A kind of electrical association system based on electric conversion energy storage and regulate and control method online
CN110061696A (en) A kind of photovoltaic and photothermal integral device, CHP system and method
CN206686115U (en) A kind of co-generation unit of providing multiple forms of energy to complement each other based on fuel cell
CN205801489U (en) A kind of boat-carrying heat pump type air conditioning system
CN100532915C (en) Wind, solar energy and electricity integrated heating device and heating method for crude oil gathering and transportation
CN216639661U (en) Electrolytic hydrogen production waste heat utilization system
CN115323419A (en) Alkaline electrolyzed water hydrogen production equipment and control method thereof
CN105757979B (en) A kind of household heat pump water heater system and heating method
CN114000979B (en) Electric water-hydrogen-methanol multi-combined energy island and method
CN215799943U (en) Electrolytic hydrogen production system
CN112611011B (en) Heating method and heating system with coupling of biogas and auxiliary heating system
CN105752310B (en) A kind of boat-carrying heat pump type air conditioning system and heating refrigerating method
CN212838198U (en) Hot-melt salt heat storage ocean temperature difference energy-solar energy combined hydrogen energy production system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant