Electrolytic hydrogen production system

Abstract

The invention discloses an electrolytic hydrogen production system. The electrolytic hydrogen production system comprises an ALK electrolysis assembly and an AEM electrolysis assembly. The ALK electrolysis assembly comprises an ALK anode reaction zone, an ALK cathode reaction zone, an ALK anode gas-liquid separation tank and an ALK cathode gas-liquid separation tank; the ALK anode reaction zone is communicated with the ALK anode gas-liquid separation tank, and the ALK cathode reaction zone is communicated with the ALK cathode gas-liquid separation tank; the AEM electrolysis assembly comprises an AEM anode reaction zone and an AEM anode gas-liquid separation tank; and the AEM anode reaction zone is communicated with the AEM anode gas-liquid separation tank. According to the technical scheme, the circulating alkali liquor in the ALK electrolytic cell and the circulating alkali liquor in the AEM electrolytic cell can complement each other, so that electrolyte concentration unbalance is avoided, the hydrogen production efficiency is improved, and the operation stability of an electrolytic hydrogen production system is guaranteed.

Description

Technical Field

[0001] This application relates to the field of hydrogen production technology, and in particular to an electrolytic hydrogen production system. Background Technology

[0002] An electrolytic hydrogen production system is a device that uses electricity to decompose water into hydrogen and oxygen. Its core consists of an electrolyzer, power supply, water treatment, and gas separation and purification units. It can be connected to renewable energy sources such as photovoltaic and wind power to achieve green hydrogen production, representing a key technology for renewable energy storage and conversion. One possible electrolytic hydrogen production system is an ALK+AEM composite electrolytic hydrogen production system. In existing ALK+AEM composite electrolytic hydrogen production systems, the ALK electrolyte circulation loop and the AEM electrolyte circulation loop are isolated from each other. The two types of electrolytes cannot be mutually supplemented and adjusted across components, easily leading to electrolyte concentration imbalance, reduced hydrogen production efficiency, and even affecting the operational stability of the electrolytic hydrogen production system. Summary of the Invention

[0003] This application proposes an electrolytic hydrogen production system to improve hydrogen production efficiency and reduce heat loss in the electrolytic hydrogen production system.

[0004] To achieve the above objectives, this application discloses the following technical solutions:

[0005] An electrolytic hydrogen production system, the electrolytic hydrogen production system comprising: an ALK electrolysis unit and an AEM electrolysis unit;

[0006] The ALK electrolysis assembly includes: an ALK anode reaction zone, an ALK cathode reaction zone, an ALK anode gas-liquid separator, and an ALK cathode gas-liquid separator; the ALK anode reaction zone and the ALK anode gas-liquid separator are connected, and the ALK cathode reaction zone and the ALK cathode gas-liquid separator are connected.

[0007] The AEM electrolysis assembly includes: an AEM anode reaction zone and an AEM anode gas-liquid separator; the AEM anode reaction zone and the AEM anode gas-liquid separator are connected.

[0008] The outlet of the ALK anode gas-liquid separator is connected to the inlet of the AEM anode reaction zone, and the outlet of the ALK cathode gas-liquid separator is connected to the inlet of the AEM anode reaction zone.

[0009] The outlet of the AEM anode gas-liquid separator is connected to the inlet of the ALK anode reaction zone, and also to the inlet of the ALK cathode reaction zone.

[0010] In some embodiments, the outlet of the ALK anode gas-liquid separator is also connected to the inlet of the ALK anode reaction zone; the outlet of the ALK cathode gas-liquid separator is also connected to the inlet of the ALK cathode reaction zone; and the AEM anode gas-liquid separator is also connected to the inlet of the AEM anode reaction zone.

[0011] In some embodiments, the electrolysis hydrogen production system further includes: a pump assembly;

[0012] The pump assembly includes: a first fluid pump;

[0013] The first fluid pump is located at the inlet of the ALK anode reaction zone and is capable of delivering liquid into the ALK anode reaction zone.

[0014] In some embodiments, the pump assembly further includes: a second fluid pump;

[0015] The second fluid pump is located at the inlet of the ALK cathode reaction zone and is capable of delivering liquid into the ALK cathode reaction zone.

[0016] In some embodiments, the pump assembly further includes: a third fluid pump;

[0017] The third fluid pump is located at the inlet of the AEM anode reaction zone and is capable of delivering liquid into the AEM anode reaction zone.

[0018] In some embodiments, the electrolytic hydrogen production system further includes: a valve assembly;

[0019] The valve assembly includes: a first valve and a second valve;

[0020] The first valve is provided between the liquid outlet of the ALK anode gas-liquid separator and the liquid inlet of the AEM anode reaction zone;

[0021] The second valve is installed between the liquid outlet of the ALK cathode gas-liquid separator and the liquid inlet of the AEM anode reaction zone.

[0022] In some embodiments, the valve assembly further includes: a third valve and a fourth valve;

[0023] The third valve is provided between the AEM anode gas-liquid separator and the liquid inlet of the ALK anode reaction zone;

[0024] The fourth valve is installed between the liquid inlet of the AEM anode gas-liquid separator and the ALK cathode reaction zone.

[0025] In some embodiments, the electrolytic hydrogen production system further includes: a liquid replenishment component;

[0026] The liquid replenishment component includes: a pure water source;

[0027] The inlets of the ALK anode reaction zone, the ALK cathode reaction zone, and the AEM anode reaction zone are all connected to the opening of the pure water source.

[0028] In some embodiments, a sixth valve is provided on the opening of the pure water source.

[0029] In some embodiments, the electrolytic hydrogen production system further includes: a heating component;

[0030] The heating assembly includes a heater; the heater is wrapped around the outer periphery of the ALK anode reaction zone, the ALK cathode reaction zone, and the AEM anode reaction zone.

[0031] As can be seen from the above technical solutions, the electrolytic hydrogen production system can achieve mutual replenishment of circulating alkaline solutions in the ALK electrolyzer and AEM electrolyzer, so as to avoid electrolyte concentration imbalance, improve hydrogen production efficiency, and ensure the operational stability of the electrolytic hydrogen production system. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings, all of which fall within the scope of protection of this invention. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structure or operation.

[0033] Figure 1 This is a schematic diagram of the overall structure of the electrolytic hydrogen production system provided in the embodiments of this application.

[0034] 11 is the ALK anode reaction zone, 12 is the ALK cathode reaction zone, 13 is the ALK anode gas-liquid separator, and 14 is the ALK cathode gas-liquid separator.

[0035] 21 is the AEM anode reaction zone, 22 is the AEM anode gas-liquid separator, and 23 is the AEM cathode reaction zone;

[0036] 31 is the first fluid pump, 32 is the second fluid pump, and 33 is the third fluid pump;

[0037] 41 is the first valve, 42 is the second valve, 43 is the third valve, 44 is the fourth valve, 45 is the fifth valve, 46 is the sixth valve, and 47 is the seventh valve;

[0038] 51 is a pure water source;

[0039] 61 is a heater. Detailed Implementation

[0040] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0041] For the purposes of this application, the following structures are described in detail with reference to the accompanying drawings:

[0042] like Figure 1 As shown, this application provides an electrolytic hydrogen production system, which may include an ALK electrolysis component and an AEM electrolysis component; wherein, ALK is alkaline water electrolysis for hydrogen production, and AEM is an anion exchange membrane water electrolysis for hydrogen production.

[0043] The ALK electrolysis assembly may include: ALK anode reaction zone 11, ALK cathode reaction zone 12, ALK anode gas-liquid separator 13, and ALK cathode gas-liquid separator 14; ALK anode reaction zone 11 and ALK anode gas-liquid separator 13 are connected, and ALK cathode reaction zone 12 and ALK cathode gas-liquid separator 14 are connected.

[0044] The AEM electrolysis assembly includes: an AEM anode reaction zone 21 and an AEM anode gas-liquid separator 22; the AEM anode reaction zone 21 and the AEM anode gas-liquid separator 22 are connected.

[0045] The outlet of the ALK anode gas-liquid separator 13 is connected to the inlet of the AEM anode reaction zone 21, and the outlet of the ALK cathode gas-liquid separator 14 is connected to the inlet of the AEM anode reaction zone 21.

[0046] The outlet of the AEM anode gas-liquid separator 22 is connected to the inlet of the ALK anode reaction zone 11, and also to the inlet of the ALK cathode reaction zone 12.

[0047] In the above technical solution, the gas-liquid outlet of the ALK anode reaction zone 11 is connected to the gas-liquid inlet of the ALK anode gas-liquid separator 13, the gas-liquid outlet of the ALK cathode reaction zone 12 is connected to the gas-liquid inlet of the ALK cathode gas-liquid separator 14, the liquid outlet of the ALK anode gas-liquid separator 13 is connected to the liquid inlet of the AEM anode reaction zone 21, the liquid outlet of the ALK cathode gas-liquid separator 14 is connected to the liquid inlet of the AEM anode reaction zone 21, the liquid outlet of the AEM anode gas-liquid separator 22 is connected to the liquid inlet of the ALK anode reaction zone 11, and the liquid outlet of the AEM anode gas-liquid separator 22 is also connected to the liquid inlet of the ALK cathode reaction zone 12. The interconnection relationship between the above components forms a network for the electrolytic hydrogen production system. During operation, the liquid separated in the ALK anode gas-liquid separator 13 flows into the AEM anode reaction zone 21, and the liquid separated in the ALK cathode gas-liquid separator 14 flows into the AEM anode reaction zone 21. Part of the liquid separated in the AEM anode gas-liquid separator 22 flows into the ALK anode reaction zone 11, and the other part flows into the ALK cathode reaction zone 12. This technical solution allows the circulating alkaline solutions in the ALK electrolyzer and the AEM electrolyzer to replenish each other, avoiding electrolyte concentration imbalance, improving hydrogen production efficiency, and ensuring the operational stability of the electrolytic hydrogen production system.

[0048] It should be noted that the gas outlet of the ALK anode gas-liquid separator 13 is oxygen, while the gas outlet of the ALK cathode gas-liquid separator 14 is hydrogen. Furthermore, the hydrogen production capacity ratio of the ALK electrolysis unit and the AEM electrolysis unit can be between 1:1 and 4:1.

[0049] It should also be noted that in the above technical solution, when water replenishment is required in the ALK anode reaction zone 11 and the ALK cathode reaction zone 12, water can be replenished from the AEM anode gas-liquid separator 22 instead of from a pure water source. This reduces control difficulty and minimizes heat loss from room temperature heating of the pure water source (i.e., reduces heat loss in the electrolysis hydrogen production system). Furthermore, the lower hydrogen production cost of the ALK electrolysis unit and the wider load range of the AEM electrolysis unit give the coupled system a greater advantage in handling fluctuating power input. Simultaneously, the similarity in electrolyte acidity and alkalinity between the ALK and AEM electrolysis units makes this coupled system more consistent and has a longer equipment lifespan than the ALK-PEM coupled system. In this technical field, the ALK electrolysis unit can be referred to as the ALK system, and the AEM electrolysis unit can be referred to as the AEM system.

[0050] To achieve self-replenishment of the ALK electrolytic cell, the outlet of the ALK anode gas-liquid separator 13 is also connected to the inlet of the ALK anode reaction zone 11. This allows a portion of the liquid in the ALK anode gas-liquid separator 13 to flow into the AEM anode reaction zone 21, and the remaining portion to flow into the ALK anode reaction zone 11. Similarly, the outlet of the ALK cathode gas-liquid separator 14 is also connected to the inlet of the ALK cathode reaction zone 12. This allows a portion of the liquid in the ALK cathode gas-liquid separator 14 to flow into the AEM anode reaction zone 21, and the remaining portion to flow into the ALK cathode reaction zone 12. Furthermore, to achieve self-replenishment of the AEM electrolytic cell, the AEM anode gas-liquid separator 22 is also connected to the inlet of the AEM anode reaction zone 21. This allows a portion of the liquid in the AEM anode gas-liquid separator 22 to flow into both the ALK anode reaction zone 11 and the ALK cathode reaction zone 12, and the remaining portion to flow into the AEM anode reaction zone 21.

[0051] To improve fluid transport efficiency, such as Figure 1 As shown, the electrolysis hydrogen production system may also include: a pump assembly.

[0052] The pump assembly includes: a first fluid pump 31.

[0053] The first fluid pump 31 is located at the inlet of the ALK anode reaction zone 11 and is capable of delivering liquid into the ALK anode reaction zone 11.

[0054] In this technical solution, the liquid from the ALK anode gas-liquid separator 13 and the liquid from the AEM anode gas-liquid separator 22 can be quickly drawn into the ALK anode reaction zone 11 under the action of the first fluid pump 31. In addition, the first fluid pump 31 is a constant flow pump and can be controlled to open and close by the control component.

[0055] To improve fluid transport efficiency, such as Figure 1 As shown, the pump assembly also includes a second fluid pump 32.

[0056] The second fluid pump 32 is located at the inlet of the ALK cathode reaction zone 12 and is capable of delivering liquid into the ALK cathode reaction zone 12.

[0057] In this technical solution, the liquid coming out of the ALK cathode gas-liquid separation tank 14 and the liquid coming out of the AEM anode gas-liquid separation tank 22 can be quickly drawn into the ALK cathode reaction zone 12 under the action of the second fluid pump 32. In addition, the second fluid pump 32 is a constant flow pump that can be controlled to open and close by a control component.

[0058] To improve fluid transport efficiency, such as Figure 1 As shown, the pump assembly also includes a third fluid pump 33.

[0059] The third fluid pump 33 is located at the inlet of the AEM anode reaction zone 21 and is capable of delivering liquid into the AEM anode reaction zone 21.

[0060] In this technical solution, the liquids from the ALK anode gas-liquid separator 13, the ALK cathode gas-liquid separator 14, and the AEM anode gas-liquid separator 22 are rapidly drawn into the AEM anode reaction zone 21 under the action of the third fluid pump 33. In addition, the second fluid pump 32 is a constant flow pump and can be controlled to open and close by the control component.

[0061] In order to open or close the passageway, such as Figure 1 As shown, the electrolysis hydrogen production system also includes: valve assemblies.

[0062] The valve assembly includes: a first valve 41 and a second valve 42.

[0063] A first valve 41 is installed between the liquid outlet of the ALK anode gas-liquid separator 13 and the liquid inlet of the AEM anode reaction zone 21.

[0064] A second valve 42 is installed between the liquid outlet of the ALK cathode gas-liquid separator 14 and the liquid inlet of the AEM anode reaction zone 21.

[0065] In this technical solution, the opening and closing of the first valve 41 controls the opening and closing of the flow path between the ALK anode gas-liquid separator 13 and the AEM anode reaction zone 21, and the opening and closing of the second valve 42 controls the opening and closing of the flow path between the ALK cathode gas-liquid separator 14 and the AEM anode reaction zone 21. This allows for the replenishment of liquid into the AEM anode reaction zone 21 according to actual production needs. Furthermore, both the first valve 41 and the second valve 42 can be flow control valves or back pressure valves, and their opening and closing can be controlled by a control assembly.

[0066] Similarly, the valve assembly may also include a third valve 43 and a fourth valve 44.

[0067] A third valve 43 is installed between the liquid inlet of the AEM anode gas-liquid separator 22 and the ALK anode reaction zone 11.

[0068] A fourth valve 44 is installed between the liquid inlet of the AEM anode gas-liquid separator 22 and the ALK cathode reaction zone 12.

[0069] In this technical solution, the opening and closing of the third valve 43 can control the opening and closing of the flow path between the AEM anode gas-liquid separator 22 and the ALK anode reaction zone 11, and the opening and closing of the fourth valve 44 can control the opening and closing of the flow path between the AEM anode gas-liquid separator 22 and the ALK cathode reaction zone 12, so as to replenish liquid into the ALK anode reaction zone 11 and the ALK cathode reaction zone 12 according to actual production needs. Furthermore, both the third valve 43 and the fourth valve 44 can be flow control valves or back pressure valves, and their opening and closing can be controlled by the control components.

[0070] Based on the above technical solution, the valve assembly may further include: a fifth valve 45, wherein the AEM anode gas-liquid separator 22, the fifth valve 45, and the fourth valve 44 are connected in sequence, and there is a branch between the fourth valve 44 and the fifth valve 45 flowing to the third valve 43.

[0071] To replenish the liquid in the ALK anode reaction zone 11, the ALK cathode reaction zone 12 and the AEM anode reaction zone 21, the electrolytic hydrogen production system also includes: a liquid replenishment component;

[0072] The liquid replenishment component includes: pure water source 51;

[0073] The liquid inlets of ALK anode reaction zone 11, ALK cathode reaction zone 12 and AEM anode reaction zone 21 are all connected to the opening of pure water source 51.

[0074] In the above technical solution, the pure water source 51 is used to replenish water to the ALK anode reaction zone 11, the ALK cathode reaction zone 12 and the AEM anode reaction zone 21. Specifically, the liquid from the pure water source 51 can be added to the flow channel between the ALK anode gas-liquid separator 13 and the AEM anode reaction zone 21, to the flow channel between the ALK cathode gas-liquid separator 14 and the AEM anode reaction zone 21, to the flow channel between the AEM anode gas-liquid separator 22 and the ALK anode reaction zone 11, and to the flow channel between the AEM anode gas-liquid separator 22 and the ALK cathode reaction zone 12.

[0075] To control the on / off state of the pure water source 51, a sixth valve 46 is provided on the opening of the pure water source 51. Furthermore, the sixth valve 46 can be a flow control valve, which can control the outflow of pure water from the pure water source 51 as needed. It should be noted that the sixth valve 46 can control the flow of water to the ALK anode reaction zone 11 and the ALK cathode reaction zone 12. It should also be noted that there is a seventh valve 47 between the opening of the pure water source 51 and the AEM anode reaction zone 21, which can control the flow of water to the AEM anode reaction zone 21.

[0076] To ensure the temperature of the electrolysis reaction, the electrolysis hydrogen production system also includes a heating component.

[0077] The heating assembly includes a heater 61. The heater 61 surrounds the ALK anode reaction zone 11, the ALK cathode reaction zone 12, and the AEM anode reaction zone 21 to achieve temperature rise and constant temperature control for each reaction zone. An alkali-resistant heat-insulating sealing layer is provided between the heater 61 and each reaction zone to isolate any alkaline media that may leak from the reaction zone, preventing corrosion and short circuits. The heater 61 is also covered with an insulation layer to reduce heat loss and improve heating efficiency. Temperature sensors are correspondingly installed between each reaction zone and the heater 61 to monitor the reaction zone temperature in real time, enabling precise control of the heater's output power and ensuring efficient electrochemical reactions under stable temperature conditions. Furthermore, the heater 61 maintains the electrolysis system formed by the ALK electrolysis assembly at a temperature of 80-110℃ and the electrolysis system formed by the AEM electrolysis assembly at a temperature of 60-80℃.

[0078] It should be noted that the AEM cathode reaction zone 23 of the AEM electrolysis unit is connected to a hydrogen pipeline, and a back pressure valve is also installed on the hydrogen pipeline. This back pressure valve is used to control the pressure in the AEM cathode reaction zone 23 and the flow rate of hydrogen.

[0079] In the electrolytic hydrogen production system, a high-pressure constant flow pump and a back pressure valve are used to control the ALK system to operate at 1-30 atm and the AEM system to operate at 1-1.5 atm.

[0080] This electrolytic hydrogen production system can be connected to new energy power input. This solution couples the ALK and AEM water electrolysis systems, making full use of the low-cost hydrogen production of the ALK system and the AEM system's ability to adapt to fluctuating power input, achieving efficient industrial integration, reducing system complexity and floor space, and effectively adapting to high-frequency fluctuating power from new energy sources.

[0081] In addition, this solution uses a new generation of ALK electrodes to meet the requirements for long-term decay rate and electrolytic cell energy consumption; and uses AEM non-precious metal / precious metal plated electrodes to meet the limits on precious metal content and electrochemical performance indicators.

[0082] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0083] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0084] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0085] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An electrolytic hydrogen production system, characterized in that, The electrolytic hydrogen production system includes: an ALK electrolysis unit and an AEM electrolysis unit; The ALK electrolysis assembly includes: an ALK anode reaction zone (11), an ALK cathode reaction zone (12), an ALK anode gas-liquid separator (13), and an ALK cathode gas-liquid separator (14); the ALK anode reaction zone (11) and the ALK anode gas-liquid separator (13) are connected, and the ALK cathode reaction zone (12) and the ALK cathode gas-liquid separator (14) are connected. The AEM electrolysis assembly includes: an AEM anode reaction zone (21) and an AEM anode gas-liquid separator (22); the AEM anode reaction zone (21) and the AEM anode gas-liquid separator (22) are connected. The outlet of the ALK anode gas-liquid separator (13) is connected to the inlet of the AEM anode reaction zone (21), and the outlet of the ALK cathode gas-liquid separator (14) is connected to the inlet of the AEM anode reaction zone (21). The outlet of the AEM anode gas-liquid separator (22) is connected to the inlet of the ALK anode reaction zone (11), and is also connected to the inlet of the ALK cathode reaction zone (12).

2. The electrolytic hydrogen production system as described in claim 1, characterized in that, The outlet of the ALK anode gas-liquid separator (13) is also connected to the inlet of the ALK anode reaction zone (11); the outlet of the ALK cathode gas-liquid separator (14) is also connected to the inlet of the ALK cathode reaction zone (12); and the AEM anode gas-liquid separator (22) is also connected to the inlet of the AEM anode reaction zone (21).

3. The electrolytic hydrogen production system as described in claim 2, characterized in that, The electrolysis hydrogen production system also includes: a pump assembly; The pump assembly includes: a first fluid pump (31); The first fluid pump (31) is located at the inlet of the ALK anode reaction zone (11) and is capable of delivering liquid into the ALK anode reaction zone (11).

4. The electrolytic hydrogen production system according to claim 3, characterized in that, The pump assembly also includes: a second fluid pump (32); The second fluid pump (32) is located at the inlet of the ALK cathode reaction zone (12) and is capable of delivering liquid into the ALK cathode reaction zone (12).

5. The electrolytic hydrogen production system according to claim 3, characterized in that, The pump assembly also includes: a third fluid pump (33). The third fluid pump (33) is located at the inlet of the AEM anode reaction zone (21) and is capable of delivering liquid into the AEM anode reaction zone (21).

6. The electrolytic hydrogen production system according to claim 2, characterized in that, The electrolytic hydrogen production system also includes: a valve assembly; The valve assembly includes: a first valve (41) and a second valve (42); The first valve (41) is provided between the liquid outlet of the ALK anode gas-liquid separator (13) and the liquid inlet of the AEM anode reaction zone (21). The second valve (42) is provided between the liquid outlet of the ALK cathode gas-liquid separator (14) and the liquid inlet of the AEM anode reaction zone (21).

7. The electrolytic hydrogen production system according to claim 6, characterized in that, The valve assembly further includes: a third valve (43) and a fourth valve (44); The third valve (43) is provided between the liquid inlet of the AEM anode gas-liquid separator (22) and the ALK anode reaction zone (11). The fourth valve (44) is provided between the liquid inlet of the AEM anode gas-liquid separator (22) and the ALK cathode reaction zone (12).

8. The electrolytic hydrogen production system according to claim 1, characterized in that, The electrolytic hydrogen production system also includes: a liquid replenishment component; The liquid replenishment component includes: a pure water source (51); The inlets of the ALK anode reaction zone (11), the ALK cathode reaction zone (12), and the AEM anode reaction zone (21) are all connected to the opening of the pure water source (51).

9. The electrolytic hydrogen production system according to claim 8, characterized in that, A sixth valve (46) is provided on the opening of the pure water source (51).

10. The electrolytic hydrogen production system according to claim 1, characterized in that, The electrolytic hydrogen production system also includes: a heating component; The heating assembly includes a heater (61); the heater (61) is wrapped around the periphery of the ALK anode reaction zone (11), the ALK cathode reaction zone (12) and the AEM anode reaction zone (21).

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