Hydrogen production system

Abstract

The application discloses a hydrogen production system, which comprises a liquid supply mechanism and an electrolytic hydrogen production assembly. The liquid supply mechanism comprises a water inlet channel, a liquid storage tank, a main flow channel and a plurality of branch flow channels. The water inlet channel and the main flow channel are both communicated with the liquid storage tank, and each branch flow channel is communicated with the main flow channel. The electrolytic hydrogen production assembly comprises a plurality of electrolytic components, a plurality of hydrogen outlet channels and a plurality of backflow channels. Each electrolytic component is one-to-one communicated with each branch flow channel, each hydrogen outlet channel is one-to-one communicated with each electrolytic component, the first end of each backflow channel is one-to-one communicated with each electrolytic component, the second end of each backflow channel is communicated with the liquid storage tank, and each electrolytic component works independently. The hydrogen production system solves the problem that the hydrogen production system needs to be maintained after the whole machine is stopped in the prior art.

Description

Technical Field

[0001] This application relates to the field of hydrogen production technology, and more specifically, to a hydrogen production system. Background Technology

[0002] Existing hydrogen production technologies include solar photocatalytic hydrogen production, natural gas steam reforming hydrogen production, biomass hydrogen production, and water electrolysis hydrogen production. Although water electrolysis hydrogen production is more expensive, its recyclable nature has made it a hot research topic in hydrogen production technology.

[0003] Existing hydrogen production devices, such as the hydrogen-oxygen fuel cell energy regeneration and recycling device disclosed in Chinese patent CN112993362A, achieve the recycling of hydrogen and oxygen. However, if the electrolysis hydrogen production component in the existing hydrogen production system is damaged, the entire system needs to be shut down for maintenance, resulting in a significant reduction in the hydrogen production efficiency of the system. Utility Model Content

[0004] The main objective of this application is to provide a hydrogen production system that at least solves the problem in the prior art that the entire system needs to be shut down for maintenance.

[0005] According to one aspect of this application, a hydrogen production system is provided, the hydrogen production system comprising:

[0006] A liquid supply mechanism, comprising an inlet channel, a storage tank, a main channel, and multiple branch channels, wherein the inlet channel and the main channel are both connected to the storage tank, and each branch channel is connected to the main channel;

[0007] An electrolytic hydrogen production assembly includes multiple electrolytic components, multiple hydrogen outlet channels, and multiple reflux channels. Each electrolytic component is connected to each of the branch channels in a one-to-one correspondence. Each hydrogen outlet channel is connected to each of the electrolytic components in a one-to-one correspondence. The first end of each reflux channel is connected to each of the electrolytic components in a one-to-one correspondence. The second end of each reflux channel is connected to the liquid storage tank. Each electrolytic component operates independently.

[0008] Furthermore, the hydrogen production system also includes a controller;

[0009] The electrolysis hydrogen production assembly also includes multiple power supply components, each of which is electrically connected to each of the electrolysis components in a one-to-one correspondence, and each of the power supply components is electrically connected to the controller.

[0010] Furthermore, the electrolysis hydrogen production assembly also includes:

[0011] The first pressure sensor includes multiple first pressure sensors, each of which is disposed in a corresponding manner in one of the multiple hydrogen outlet channels.

[0012] The control valve includes multiple valves, each of which is correspondingly disposed in one of the multiple branch channels;

[0013] Each of the first pressure sensors and each of the control valves are electrically connected to the controller. The controller controls the control valves on the corresponding branch channels to open or close based on the electrical signals transmitted by the first pressure sensors.

[0014] Furthermore, the electrolysis component includes multiple clusters of electrolytic stacks, each cluster of electrolytic stacks includes multiple electrolytic stacks, the multiple electrolytic stacks in each cluster are connected in series, and each cluster of electrolytic stacks is connected to the corresponding hydrogen outlet channel, the reflux channel and the branch channel;

[0015] The power supply component includes multiple power sources, each of which is electrically connected to each cluster of electrolytic cells.

[0016] Furthermore, the liquid supply mechanism also includes a temperature maintenance component and multiple adjustment components. The temperature maintenance component is disposed in the main flow channel and each of the branch channels, and each of the adjustment components is disposed in each of the branch channels in a corresponding manner. Both the temperature maintenance component and the adjustment components are electrically connected to the controller. The adjustment components are used to adjust the flow rate or pressure of the fluid in the branch channels.

[0017] Furthermore, the temperature maintaining component includes:

[0018] A heat exchanger is disposed in the main flow channel;

[0019] Temperature sensors, including multiple temperature sensors, are arranged one-to-one in multiple branch channels;

[0020] The heat exchanger and each of the temperature sensors are electrically connected to the controller. The controller controls the heat exchanger to heat or cool the fluid in the main flow channel based on the electrical signals transmitted by the temperature sensors.

[0021] Furthermore, the adjustment component includes:

[0022] A circulating pump body is disposed in the tributary channel;

[0023] A flow sensor is disposed in the tributary channel and located between the circulating pump body and the electrolysis component;

[0024] The circulating pump and the flow sensor are both electrically connected to the controller. The controller controls the circulating pump according to the electrical signal transmitted by the flow sensor to adjust the flow rate of the fluid in the tributary channel.

[0025] Furthermore, the adjustment component also includes:

[0026] A pressure regulating valve is disposed in the branch channel and located between the circulating pump body and the electrolysis component;

[0027] A second pressure sensor is disposed in the branch channel and located between the pressure regulating valve and the electrolysis component;

[0028] The pressure regulating valve and the second pressure sensor are both electrically connected to the controller. The controller controls the circulating pump to regulate the flow rate of the fluid in the tributary channel and controls the pressure regulating valve to regulate the pressure of the fluid in the tributary channel based on the electrical signals transmitted by the flow sensor and the second pressure sensor.

[0029] Furthermore, the electrolysis component includes an electrolytic stack, which includes a main body, an anode plate, a cathode plate, and an ion exchange membrane. An electrolysis chamber is provided within the main body. The anode plate and the cathode plate are spaced apart within the electrolysis chamber. The ion exchange membrane is located between the cathode plate and the anode plate, dividing the electrolysis chamber into an anode chamber and a cathode chamber. The main body has a liquid inlet, a liquid outlet, and a hydrogen outlet. The liquid inlet and the liquid outlet communicate with the anode chamber, and the liquid outlet communicates with the cathode chamber.

[0030] The tributary channel is connected to the liquid inlet, the reflux channel is connected to the liquid outlet, the hydrogen outlet channel is connected to the hydrogen outlet, and the power supply component is electrically connected to the anode plate and the cathode plate.

[0031] Furthermore, the liquid supply mechanism also includes multiple filter components, which are arranged one-to-one in the multiple branch channels.

[0032] Compared to existing technologies, this application features a one-to-one correspondence of multiple branch channels, multiple electrolysis components, multiple hydrogen outlet channels, and multiple reflux channels, with each electrolysis component operating independently. This means that if one electrolysis component in the hydrogen production system fails, the others can still function normally, improving the redundancy of the system to some extent. Furthermore, maintenance of the damaged component can be performed without shutting down the entire system. On the other hand, the modular design of the branch channels, electrolysis components, hydrogen outlet channels, and reflux channels enhances the scalability of the hydrogen production system to a certain extent. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0034] Figure 1 This is a schematic diagram of the hydrogen production system disclosed in this application from a first-person perspective.

[0035] Figure 2 This is a schematic diagram of the hydrogen production system disclosed in this application from a second-view perspective.

[0036] Figure 3 This is a simplified diagram of the hydrogen production system disclosed in this application.

[0037] The above figures include the following reference numerals:

[0038] 11. Inlet water channel; 12. Storage tank; 13. Main stream channel; 14. Tributary channel; 15. Temperature maintenance component; 16. Control valve; 17. Regulating component; 18. Filter component; 21. Electrolysis component; 22. Hydrogen outlet channel; 23. Reflux channel; 24. First pressure sensor; 25. Power supply component; 30. Controller; 151. Heat exchanger; 152. Temperature sensor; 171. Circulating pump body; 172. Flow sensor; 173. Second pressure sensor; 174. Pressure regulating valve. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0042] See Figures 1 to 3 As shown, according to an embodiment of this application, a hydrogen production system is provided, which includes a liquid supply mechanism and an electrolysis hydrogen production component.

[0043] The liquid supply mechanism includes an inlet channel 11, a storage tank 12, a main channel 13, and multiple branch channels 14. The inlet channel 11 and the main channel 13 are both connected to the storage tank 12, and each branch channel 14 is connected to the main channel 13. The electrolytic hydrogen production assembly includes multiple electrolytic components 21, multiple hydrogen outlet channels 22, and multiple reflux channels 23. Each electrolytic component 21 is connected to each branch channel 14 in a one-to-one correspondence. Each hydrogen outlet channel 22 is connected to each electrolytic component 21 in a one-to-one correspondence. The first end of each reflux channel 23 is connected to each electrolytic component 21 in a one-to-one correspondence. The second end of each reflux channel 23 is connected to the storage tank 12, and each electrolytic component 21 operates independently.

[0044] In the hydrogen production process of the hydrogen production system, water enters the storage tank 12 through the water inlet channel 11, and then mixes with the catalyst in the storage tank 12 to form an electrolyte. The mixed electrolyte enters multiple branch channels 14 through the main channel 13, and then the electrolyte in each branch channel 14 flows into each electrolysis component 21, where it is electrolyzed into oxygen and hydrogen. The hydrogen electrolyzed in each electrolysis component 21 flows out of the hydrogen production system through each hydrogen outlet channel 22. The remaining electrolyte in each electrolysis component 21 and the oxygen produced by electrolysis flow back into the storage tank 12 through each return channel 23.

[0045] Compared to existing technologies, this embodiment features a one-to-one correspondence of multiple branch channels 14, multiple electrolysis components 21, multiple hydrogen outlet channels 22, and multiple reflux channels 23, with each electrolysis component 21 operating independently. This means that if one electrolysis component 21 in the hydrogen production system fails, the others can still function normally, improving the redundancy of the hydrogen production system to some extent. Furthermore, maintenance of the damaged electrolysis component 21 can be performed without shutting down the entire hydrogen production system. On the other hand, the modular arrangement of the branch channels 14, electrolysis components 21, hydrogen outlet channels 22, and reflux channels 23 enhances the scalability of the hydrogen production system to a certain extent.

[0046] Furthermore, the hydrogen production system also includes a controller 30. The electrolysis hydrogen production assembly also includes multiple power supply components 25, each power supply component 25 being electrically connected to each electrolysis component 21 in a one-to-one correspondence, and each power supply component 25 being electrically connected to the controller 30.

[0047] Specifically, when a failure is detected in an electrolysis component 21 of the hydrogen production system, the controller 30 can control the power supply component 25 that provides current to the electrolysis component 21, causing the power supply component 25 to stop supplying power to the electrolysis component 21, thereby stopping the electrolysis component 21 from operating. Furthermore, since there are multiple power supply components 25, and each power supply component 25 can adjust the power consumption of its corresponding electrolysis component 21, that is, when some electrolysis components 21 fail, the power of the undamaged electrolysis components 21 can be increased, allowing the hydrogen production system to still produce the same amount of hydrogen within a corresponding time, thus preventing the hydrogen production efficiency of the system from decreasing after the failure of some electrolysis components 21.

[0048] As attached Figure 3 As shown, the electrolysis hydrogen production assembly also includes a first pressure sensor 24 and a control valve 16. Multiple first pressure sensors 24 are arranged one-to-one in multiple hydrogen outlet channels 22. Multiple control valves 16 are arranged one-to-one in multiple branch channels 14. Each first pressure sensor 24 and each control valve 16 is electrically connected to a controller 30. The controller 30 controls the opening or closing of the corresponding control valve 16 on the branch channel 14 based on the electrical signal transmitted by the first pressure sensor 24.

[0049] In this embodiment, each first pressure sensor 24 is used to monitor the pressure of hydrogen in each hydrogen outlet channel 22. In actual operation of the hydrogen production system, the pressure of the electrolyzed hydrogen should be within the calibrated pressure range, based on the calibrated hydrogen production parameters. If the pressure of the hydrogen in the outlet channel 22 exceeds the calibrated pressure range, for example, if the pressure is lower than the calibrated pressure range, it may be due to damage to the electrolysis component 21, resulting in hydrogen leakage; or it may be due to a leak in the outlet channel 22, causing a decrease in hydrogen pressure. When the pressure of the hydrogen in the outlet channel 22 is higher than the calibrated pressure range, it may be due to blockage of the outlet channel 22, excessive current supplied by the power supply component 25 to the electrolysis component 21, or aging of the electrolysis component 21, causing hydrogen and oxygen to mix within the electrolysis component 21, resulting in excessive pressure of the gas flow in the outlet channel 22. Therefore, when the first pressure sensor 24 detects that the gas pressure in the hydrogen outlet channel 22 exceeds the calibrated pressure range, the first pressure sensor 24 transmits a first electrical signal to the controller 30. After receiving the first electrical signal, the controller 30 controls the control valve 16 on the branch channel 14 connected to the hydrogen outlet channel 22 to close, preventing electrolyte from entering the electrolysis unit 21. It is understood that the calibrated pressure range can be set to different ranges depending on the hydrogen production requirements and the size of the electrolysis unit 21. Therefore, this embodiment does not impose specific limitations on the calibrated pressure range.

[0050] In some embodiments, the hydrogen production system also includes multiple alarm elements, each of which is electrically connected to each control valve 16. When the control valve 16 is closed, the alarm element sends an alarm signal to alert the operator that there is an abnormality in the hydrogen production of the electrolysis unit 21.

[0051] In some embodiments, the electrolysis unit 21 includes multiple clusters of electrolytic stacks, each cluster comprising multiple electrolytic stacks connected in series. Each cluster of electrolytic stacks is connected to a corresponding hydrogen outlet channel 22, reflux channel 23, and branch channel 14. The power supply component 25 includes multiple power sources, each power source being electrically connected to a corresponding cluster of electrolytic stacks.

[0052] Specifically, in this embodiment, since each power source is electrically connected to each cluster of electrolytic stacks in a one-to-one correspondence, when one or more electrolytic stacks in a cluster are damaged, the controller 30 can control the power source electrically connected to that cluster to stop supplying current to that cluster, while the stacks in other clusters can still produce hydrogen normally. Simultaneously, since the electrolytic stacks in each cluster are connected in series, changing the current supplied by the power source connected to a cluster can alter the hydrogen production power of each electrolytic stack in that cluster, thereby improving the adaptability of the hydrogen production system.

[0053] Furthermore, the liquid supply mechanism also includes a temperature maintenance component 15 and multiple regulating components 17. The temperature maintenance component 15 is disposed in the main flow channel 13 and each branch channel 14, and each regulating component 17 is disposed in each branch channel 14 in a corresponding manner. Both the temperature maintenance component 15 and the regulating components 17 are electrically connected to the controller 30. The regulating components 17 are used to regulate the flow rate or pressure of the gas in the branch channel 14.

[0054] Specifically, the temperature maintenance component 15 maintains the temperature of the electrolyte entering each branch channel 14 within the optimal electrolysis temperature range, thereby improving the hydrogen production efficiency of the hydrogen production system. Similarly, the regulating component 17 regulates the flow rate or pressure of the fluid within the branch channel 14, ensuring that the flow rate or pressure of the fluid entering the electrolytic stack remains within the optimal electrolysis flow rate or optimal electrolysis pressure range, thereby improving electrolysis efficiency. Furthermore, when a portion of the electrolytic stack is damaged, to improve the hydrogen production efficiency of the undamaged portion, the regulating component 17 needs to regulate the pressure and flow rate of the fluid within that branch channel 14 to meet the increased optimal electrolysis pressure and flow rate ranges of the electrolyte. For example, if there are only two electrolytic stacks in the entire system, and one electrolytic stack is damaged, to maintain the hydrogen production rate per unit time, it is necessary not only to increase the current supplied to that electrolytic stack but also to increase the flow rate and pressure of the electrolyte entering the electrolytic stack through the regulating component 17, thereby increasing the unit hydrogen production of the electrolytic stack.

[0055] In this embodiment, to ensure that the electrolyte entering each branch channel 14 has the same temperature and that the electrolyte temperature is within the optimal electrolysis temperature range, the temperature maintenance component 15 includes a heat exchanger 151 and temperature sensors 152. The heat exchanger 151 is disposed in the main flow channel 13. Multiple temperature sensors 152 are disposed in corresponding locations in each of the multiple branch channels 14. Both the heat exchanger 151 and each temperature sensor 152 are electrically connected to the controller 30. The controller 30 controls the heat exchanger 151 to heat or cool the fluid in the main flow channel 13 based on the electrical signals transmitted by the temperature sensors 152.

[0056] In other words, when the temperature sensor 152 detects that the electrolyte temperature is outside the optimal electrolysis temperature range, for example, when the electrolyte temperature is below the minimum value of the optimal electrolysis temperature range, the temperature sensor 152 transmits a second electrical signal to the controller 30. The controller 30 then controls the heat exchanger 151 to heat the electrolyte, thereby raising the electrolyte temperature to within the optimal electrolysis temperature range. Conversely, when the electrolyte temperature is above the maximum value of the optimal electrolysis temperature range, the temperature sensor 152 transmits a third electrical signal to the controller 30. The controller 30 then controls the heat exchanger 151 to cool the electrolyte, thereby lowering the electrolyte temperature back to within the optimal electrolysis temperature range to ensure the hydrogen production efficiency of the hydrogen production system.

[0057] Furthermore, the regulating assembly 17 includes a circulating pump body 171 and a flow sensor 172. The circulating pump body 171 is disposed in the branch channel 14, and the flow sensor 172 is disposed in the branch channel 14, located between the circulating pump body 171 and the electrolysis unit 21. Both the circulating pump body 171 and the flow sensor 172 are electrically connected to the controller 30. The controller 30 controls the circulating pump body 171 to regulate the flow rate of the fluid in the branch channel 14 based on the electrical signal transmitted by the flow sensor 172.

[0058] Specifically, when the flow sensor 172 detects that the electrolyte flow rate in the branch channel 14 is not within the optimal electrolysis flow rate range, for example, when the electrolyte flow rate is too high, the flow sensor 172 sends a fourth electrical signal to the controller 30. The controller 30 then controls the circulating pump 171 to reduce the electrolyte flow rate, thereby bringing the electrolyte flow rate within the optimal electrolysis flow rate range. Conversely, when the electrolyte flow rate is too low, the flow sensor 172 sends a fifth electrical signal to the controller 30. The controller 30 then controls the circulating pump 171 to increase the electrolyte flow rate, so that the electrolyte flow rate is within the optimal electrolysis flow rate range.

[0059] Since the flow rate of the electrolyte is regulated by the circulating pump 171 in this embodiment, the pressure of the electrolyte will also change when the flow rate is adjusted. To more precisely control the flow rate and pressure of the electrolyte, the regulating component 17 in this embodiment also includes a pressure regulating valve 174 and a second pressure sensor 173. The pressure regulating valve 174 is disposed in the branch channel 14 and located between the circulating pump 171 and the electrolysis component 21. The second pressure sensor 173 is disposed in the branch channel 14 and located between the pressure regulating valve 174 and the electrolysis component 21. Both the pressure regulating valve 174 and the second pressure sensor 173 are electrically connected to the controller 30. The controller 30 controls the circulating pump 171 to regulate the flow rate of the fluid in the branch channel 14 and controls the pressure regulating valve 174 to regulate the pressure of the fluid in the branch channel 14 based on the electrical signals transmitted by the flow sensor 172 and the second pressure sensor 173.

[0060] In other words, this embodiment uses the cooperation of the second pressure sensor 173, the flow sensor 172, the pressure regulating valve 174 and the circulating pump body 171 to regulate the pressure and flow rate of the electrolyte in the branch channel 14, so that the pressure and flow rate of the electrolyte are kept within the range of the optimal electrolysis pressure and the optimal electrolysis flow rate.

[0061] Furthermore, the electrolytic stack includes a main body, an anode plate, a cathode plate, and an ion exchange membrane. An electrolysis chamber is provided within the main body, with the anode and cathode plates spaced apart within it. The ion exchange membrane is located between the cathode and anode plates, dividing the electrolysis chamber into an anode chamber and a cathode chamber. The main body has an inlet, an outlet, and a hydrogen outlet. The inlet and outlet communicate with the anode chamber, and the outlet communicates with the cathode chamber. A branch channel 14 communicates with the inlet, a reflux channel 23 communicates with the outlet, and a hydrogen outlet channel 22 communicates with the hydrogen outlet. The power supply assembly 25 is electrically connected to the anode and cathode plates.

[0062] Specifically, in the hydrogen production process of this embodiment, the electrolyte flows into the inlet through the branch channel 14 and then enters the anode chamber. Water in the electrolyte passes through the ion exchange membrane and enters the cathode chamber. When both the anode plate and the cathode plate are connected to an external power source, the water receives electrons under the action of the cathode plate and undergoes a hydrogen evolution reaction to produce hydrogen gas. That is, the reaction 4H2O + 4e- occurs on the cathode plate. - →4OH - +2H2, and the resulting hydrogen gas flows from the hydrogen outlet into the hydrogen outlet channel 22. The generated OH... - Ions pass through the ion exchange membrane back into the anode chamber and react on the anode plate: 4OH- - →2H₂O + O₂ + 4e - Oxygen is thus evolved on the anode plate, and the evolved oxygen and electrolyte flow together from the outlet into the reflux channel 23. In some embodiments, the ion exchange membrane can be an anion exchange membrane, and a gas diffusion layer is also provided in the electrolysis chamber to guide the produced gas and electrolyte. A cathode catalyst layer is provided in the cathode chamber, and an anode catalyst layer is provided in the anode chamber, thereby improving hydrogen production efficiency. In addition, in this embodiment, the outlet of each electrolysis stack is connected to the reflux channel 23, the inlet is connected to the branch channel 14, and the hydrogen outlet is connected to the hydrogen outlet channel 22, so as to ensure that when some electrolysis stacks are damaged, the other undamaged electrolysis stacks can still produce hydrogen normally.

[0063] Furthermore, the liquid supply mechanism also includes multiple filter components 18, which are arranged one-to-one in multiple branch channels 14.

[0064] In some embodiments, the filtration assembly 18 includes a filter for filtering impurities in the electrolyte flowing into the electrolytic stack, preventing impurities from affecting the electrolysis efficiency of the electrolyte. In some embodiments, the filtration assembly 18 further includes a differential pressure sensor disposed in the branch channel 14 and located on both sides of the filter. A switching valve is disposed on the filter, and both the differential pressure sensor and the switching valve are electrically connected to the controller 30. When the differential pressure sensor detects excessive pressure on both sides of the filter, indicating that the filter is clogged, the differential pressure sensor sends an electrical signal to the controller 30, which then controls the switching valve to open, thereby discharging impurities from the filter.

[0065] In summary, the hydrogen production system of this application improves the redundancy of the system by setting up multiple branch channels 14, multiple electrolysis components 21, multiple reflux channels 23, and multiple hydrogen outlet channels 22 in a one-to-one correspondence. This allows the hydrogen production system to continue operating even if some electrolysis components 21 are damaged, and the system can still maintain the damaged electrolysis components 21 while in operation. On the other hand, the hydrogen production system of this application includes a controller 30, multiple first pressure sensors 24, and multiple control valves 16. The first pressure sensors 24 are used to monitor the operating conditions of the corresponding hydrogen outlet channels 22 and the corresponding electrolysis components 21. When a problem occurs in an electrolysis component 21 or a hydrogen outlet channel 22, the controller 30 closes the control valve 16, thereby stopping the operation of the electrolysis component 21. Furthermore, the electrolysis component 21 in this application includes multiple clusters of electrolytic stacks, each cluster comprising multiple electrolytic stacks connected in parallel, and multiple electrolytic stacks within each cluster connected in series. The power supply component 25 includes multiple power sources, each corresponding to one of the multiple clusters of electrolytic stacks. This means that if one or more electrolytic stacks in a cluster are damaged, only the power supply to that cluster can be stopped, while the electrolytic stacks in other clusters can continue to operate normally. Finally, this application also improves the hydrogen production efficiency of the hydrogen production system by providing a regulating component 17 and a temperature maintaining component 15 on the main flow channel 13 and the branch flow channel 14.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hydrogen production system, characterized in that, include: The liquid supply mechanism includes an inlet channel (11), a storage tank (12), a main channel (13), and multiple branch channels (14). The inlet channel (11) and the main channel (13) are both connected to the storage tank (12), and each branch channel (14) is connected to the main channel (13). An electrolytic hydrogen production assembly includes multiple electrolytic components (21), multiple hydrogen outlet channels (22), and multiple reflux channels (23). Each electrolytic component (21) is connected to each branch channel (14) in a one-to-one correspondence. Each hydrogen outlet channel (22) is connected to each electrolytic component (21) in a one-to-one correspondence. The first end of each reflux channel (23) is connected to each electrolytic component (21) in a one-to-one correspondence. The second end of each reflux channel (23) is connected to the liquid storage tank (12). Each electrolytic component (21) operates independently.

2. The hydrogen production system according to claim 1, characterized in that, The hydrogen production system also includes a controller (30); The electrolysis hydrogen production assembly also includes multiple power supply components (25), each power supply component (25) is electrically connected to each electrolysis component (21) in a one-to-one correspondence, and each power supply component (25) is electrically connected to the controller (30).

3. The hydrogen production system according to claim 2, characterized in that, The electrolysis hydrogen production assembly also includes: The first pressure sensor (24) includes multiple first pressure sensors (24), and the multiple first pressure sensors (24) are respectively disposed in the multiple hydrogen outlet channels (22); Control valve (16), the control valve (16) includes a plurality of them, and the plurality of control valves (16) are respectively arranged in the plurality of branch channels (14); Each of the first pressure sensors (24) and each of the control valves (16) are electrically connected to the controller (30). The controller (30) controls the control valves (16) on the corresponding branch channels (14) to open or close based on the electrical signals transmitted by the first pressure sensors (24).

4. The hydrogen production system according to claim 2, characterized in that, The electrolysis unit (21) includes multiple clusters of electrolytic stacks, each cluster of electrolytic stacks includes multiple electrolytic stacks, the multiple electrolytic stacks in each cluster are connected in series, and each cluster of electrolytic stacks is connected to the corresponding hydrogen outlet channel (22), the reflux channel (23) and the branch channel (14); The power supply component (25) includes multiple power sources, each of which is electrically connected to each cluster of electrolytic cells.

5. The hydrogen production system according to claim 2, characterized in that, The liquid supply mechanism further includes a temperature maintenance component (15) and a plurality of regulating components (17). The temperature maintenance component (15) is disposed in the main channel (13) and each of the branch channels (14). Each of the regulating components (17) is disposed in each of the branch channels (14). The temperature maintenance component (15) and the regulating components (17) are both electrically connected to the controller (30). The regulating components (17) are used at least to regulate the flow rate or pressure of the fluid in the branch channels (14).

6. The hydrogen production system according to claim 5, characterized in that, The temperature maintaining component (15) includes: Heat exchanger (151), the heat exchanger (151) is disposed in the main channel (13); Temperature sensor (152), the temperature sensor (152) includes a plurality of them, and the plurality of temperature sensors (152) are disposed one-to-one in the plurality of the branch channels (14); The heat exchanger (151) and each of the temperature sensors (152) are electrically connected to the controller (30). The controller (30) controls the heat exchanger (151) to heat or cool the fluid in the main channel (13) according to the electrical signal transmitted by the temperature sensor (152).

7. The hydrogen production system according to claim 5, characterized in that, The adjustment component (17) includes: A circulating pump body (171) is disposed in the branch channel (14); A flow sensor (172) is disposed in the branch channel (14) and located between the circulating pump body (171) and the electrolysis component (21); The circulating pump body (171) and the flow sensor (172) are both electrically connected to the controller (30). The controller (30) controls the circulating pump body (171) according to the electrical signal transmitted by the flow sensor (172) to adjust the flow rate of the fluid in the branch channel (14).

8. The hydrogen production system according to claim 7, characterized in that, The adjustment component (17) further includes: A pressure regulating valve (174) is disposed in the branch channel (14) and located between the circulating pump body (171) and the electrolysis component (21); The second pressure sensor (173) is disposed in the branch channel (14) and located between the pressure regulating valve (174) and the electrolysis component (21); The pressure regulating valve (174) and the second pressure sensor (173) are both electrically connected to the controller (30). The controller (30) controls the circulating pump (171) to regulate the flow rate of the fluid in the branch channel (14) and controls the pressure regulating valve (174) to regulate the pressure of the fluid in the branch channel (14) according to the electrical signals transmitted by the flow sensor (172) and the second pressure sensor (173).

9. The hydrogen production system according to any one of claims 2 to 3, 5 to 8, characterized in that, The electrolysis component (21) includes an electrolytic stack, which includes a main body, an anode plate, a cathode plate, and an ion exchange membrane. An electrolysis chamber is provided inside the main body. The anode plate and the cathode plate are spaced apart in the electrolysis chamber. The ion exchange membrane is located between the cathode plate and the anode plate and divides the electrolysis chamber into an anode chamber and a cathode chamber. The main body is provided with a liquid inlet, a liquid outlet, and a hydrogen outlet. The liquid inlet and the liquid outlet are connected to the anode chamber, and the liquid outlet is connected to the cathode chamber. The branch channel (14) is connected to the liquid inlet, the reflux channel (23) is connected to the liquid outlet, the hydrogen outlet channel (22) is connected to the hydrogen outlet, and the power supply component (25) is electrically connected to the anode plate and the cathode plate.

10. The hydrogen production system according to any one of claims 1 to 8, characterized in that, The liquid supply mechanism also includes multiple filter components (18), which are arranged one-to-one in the multiple branch channels (14).

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