Electrolytic hydrogen production device and hydrogen production system

Abstract

The application discloses an electrolytic hydrogen production device, namely, a hydrogen production system. The hydrogen production system comprises the electrolytic hydrogen production device, which comprises an outer shell, an electrolysis stack, a hydrogen outlet channel, a liquid inlet channel, a liquid outlet channel, a detection assembly, a power supply assembly and a controller. The electrolysis stack comprises a main body, an anode plate, a cathode plate and an ion exchange film. The main body is provided with a liquid inlet, a liquid outlet and a hydrogen outlet. The first end of the hydrogen outlet channel is in communication with the hydrogen outlet, and the second end of the hydrogen outlet channel extends to the outside of the outer shell. The first end of the liquid inlet channel is in communication with the liquid inlet, and the first end of the liquid outlet channel is in communication with the liquid outlet. The detection assembly comprises a first temperature sensor, a flow meter and a hydrogen sensor. The controller is electrically connected with at least the detection assembly and the power supply assembly. The controller is used for controlling the power supply assembly to be connected with or disconnected from at least one of the anode plate and the cathode plate according to the signals transmitted by the detection assembly. The application solves the problem that the electrolytic hydrogen production device is prone to damage in the prior art.

Description

Technical Field

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

[0002] Existing hydrogen electrolysis technologies include solid polymer anion exchange membrane (AEM) water electrolysis technology. AEM is usually implemented using an electrolysis hydrogen production device, which typically includes an electrolysis stack. Hydrogen is produced by transporting electrolyte into the electrolysis stack and decomposing the electrolyte into hydrogen and oxygen within the stack.

[0003] However, existing electrolysis stacks often lack protective measures, which can easily lead to damage to the electrolysis hydrogen production equipment. Utility Model Content

[0004] The main objective of this application is to provide an electrolytic hydrogen production device and system to at least solve the problem that electrolytic hydrogen production devices in the prior art are prone to damage.

[0005] According to one aspect of this application, an electrolytic hydrogen production apparatus is provided, the apparatus comprising:

[0006] outer shell;

[0007] An electrolytic cell stack is installed inside a housing. The electrolytic cell stack 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 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.

[0008] A hydrogen outlet channel, wherein the first end of the hydrogen outlet channel is connected to the hydrogen outlet port, and the second end of the hydrogen outlet channel extends to the outside of the outer casing;

[0009] A liquid inlet channel, wherein the first end of the liquid inlet channel is connected to the liquid inlet, and the second end of the liquid inlet channel extends to the outside of the outer shell;

[0010] A liquid outlet channel, wherein the first end of the liquid outlet channel is connected to the liquid outlet, and the second end of the liquid outlet channel extends to the outside of the outer shell;

[0011] A detection component is disposed within the housing. The detection component includes a first temperature sensor, a flow meter, and a hydrogen sensor. The hydrogen sensor is used to monitor the hydrogen content within the housing. The flow meter is used to monitor the flow rate of the electrolyte flowing into the inlet. The first temperature sensor is used to monitor the temperature of the electrolyte flowing into the outlet channel.

[0012] A power supply assembly is disposed in the housing and is electrically connected to the cathode plate and the anode plate;

[0013] A controller, which is electrically connected to at least the detection component and the power supply component, is configured to control the power supply component to connect or disconnect from at least one of the anode plate and the cathode plate based on a signal transmitted by the detection component.

[0014] Furthermore, the outer casing is provided with a first clearance hole and a second clearance hole;

[0015] The electrolytic hydrogen production device further includes a first pipeline assembly located within the outer casing. A first end of the first pipeline assembly is connected to the liquid inlet, and a second end of the first pipeline assembly passes through the outer casing via the first clearance hole. A flow meter is disposed at the end of the first pipeline near the liquid inlet. The first pipeline assembly has the liquid inlet channel; and / or...

[0016] The electrolytic hydrogen production device further includes a second pipeline assembly located within the outer casing. The first end of the second pipeline assembly is connected to the liquid outlet, and the second end of the second pipeline passes through the outer casing via the second clearance hole. The first temperature sensor is located at the end of the second pipeline near the liquid outlet, and the second pipeline assembly has the liquid outlet channel.

[0017] Furthermore, the first pipe assembly includes a first pipe, a first tee connector, and a first sealing connector. The first tee connector includes a first interface, a second interface, and a third interface. The first end of the first pipe is connected to the first interface, the second end of the first pipe passes through the first clearance hole into the outer casing, the first sealing connector is connected between the second interface and the liquid inlet, and the flow meter is connected to the third interface.

[0018] The second pipe assembly includes a second pipe and a second tee connector. The second tee connector includes a fourth interface, a fifth interface, and a sixth interface. The first end of the second pipe is connected to the fourth interface, and the second end of the second pipe passes through the second clearance hole into the outer casing. The fifth interface is connected to the liquid outlet, and the first temperature sensor is connected to the sixth interface.

[0019] Furthermore, the electrolytic hydrogen production apparatus also includes:

[0020] An insulating block is disposed within the outer casing, and a first channel is provided within the insulating block;

[0021] A first sealing connection component is located inside the housing and is connected between the first end of the first channel and the hydrogen outlet.

[0022] A second sealing connection component, one end of which is connected to the second end of the first channel, and the other end of which extends to the outside of the outer casing;

[0023] The hydrogen outlet channel is formed between the first sealing connection component, the first channel, and the second sealing connection component.

[0024] Furthermore, the detection component also includes a second temperature sensor, which is disposed on the insulating block and electrically connected to the controller.

[0025] Furthermore, the electrolytic hydrogen production device also includes a first fixing member and a second fixing member;

[0026] The outer casing includes a first casing and a second casing, with the first casing covering the second casing. The electrolytic stack is fixedly connected to the first casing via the first fixing member, and the electrolytic stack is fixedly connected to the second casing via the second fixing member. The hydrogen sensor is disposed on the inner wall surface of the first casing and / or the second casing.

[0027] Furthermore, the first housing is disposed on top of the second housing, and the first housing has heat dissipation holes; and / or,

[0028] The outer casing is provided with a plurality of heat dissipation holes. The electrolytic hydrogen production device further includes an adjustment unit, which is disposed on the outer casing and electrically connected to the controller. The adjustment unit is at least used to enable or close the heat dissipation holes to communicate with or close the outer casing, and to adjust the total area of ​​the plurality of heat dissipation holes communicating with the outside.

[0029] Furthermore, the second housing has a first mounting port and a second mounting port, the controller is embedded in the first mounting port, and the power supply component is embedded in the second mounting port.

[0030] Further, the outer casing includes at least one selected from polyvinyl chloride, polycarbonate, polyphenylene ether, and thermoplastic polyester; and / or,

[0031] The outer peripheral surface and / or inner wall surface of the outer shell are provided with a flame-retardant layer, which includes at least one of aluminum hydroxide coating, magnesium hydroxide coating, nano clay coating and nano alumina coating.

[0032] On the other hand, this application also provides a hydrogen production system, which includes the above-mentioned electrolytic hydrogen production device.

[0033] This embodiment includes a first temperature sensor, a flow meter, a hydrogen sensor, and a controller. The hydrogen sensor monitors the hydrogen content inside the casing, the flow meter monitors the flow rate of the electrolyte flowing into the inlet, and the first temperature sensor monitors the temperature of the electrolyte flowing into the outlet channel. Specifically, when the hydrogen sensor detects that the hydrogen content inside the casing is higher than a predetermined level, it indicates that the electrolytic cell is leaking hydrogen. At this time, the hydrogen sensor sends a first electrical signal to the controller. Upon receiving the first electrical signal, the controller controls the power supply component to stop supplying power to the anode and cathode plates, thereby preventing the leaked hydrogen from causing a safety accident. Conversely, when the first temperature sensor detects that the temperature of the electrolyte flowing into the outlet channel is higher than a predetermined first temperature, the operating temperature of the electrolytic cell is too high. To prevent damage to the electrolytic cell due to overheating, the first temperature sensor sends a second electrical signal to the controller. Upon receiving the second electrical signal, the controller controls the power supply component to stop supplying power to the anode and cathode plates. Furthermore, when the flow meter detects that the flow rate of the electrolyte flowing into the inlet exceeds a predetermined flow range, the flow meter sends a third electrical signal to the controller. Similarly, upon receiving the third electrical signal, the controller controls the power supply component to stop supplying power to the anode and cathode plates, preventing damage to the electrolytic stack or excessive electrolyte consumption. On the other hand, this application also provides an outer casing around the electrolytic stack. The outer casing further improves the protective performance of the electrolytic stack, preventing external water stains and dust from entering and affecting it. Compared to the prior art, this embodiment comprehensively considers three factors that make the electrolytic stack susceptible to damage: the flow rate of the electrolyte flowing into the electrolysis chamber, the operating temperature of the electrolytic stack, and whether the electrolytic stack is leaking hydrogen. It also adds protective measures to the electrolytic stack, thereby preventing easy damage. Attached Figure Description

[0034] 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:

[0035] Figure 1 This is a schematic diagram of the electrolytic hydrogen production device disclosed in this application from a first-view perspective.

[0036] Figure 2 This is a schematic diagram of the electrolytic hydrogen production device disclosed in this application from a second-view perspective.

[0037] Figure 3 This is a partial structural schematic diagram of the electrolytic hydrogen production device disclosed in this application (with the first pipeline assembly, the second pipeline assembly, the first housing, the insulating block, the first sealing connection component, and the second sealing connection component removed).

[0038] Figure 4 This is a partial structural schematic diagram of the electrolytic hydrogen production device disclosed in this application (with the first casing removed);

[0039] Figure 5 This is a schematic diagram of the structure of the second shell disclosed in this application;

[0040] Figure 6 This is a schematic diagram of the structure of the first shell disclosed in this application;

[0041] Figure 7 This is a schematic diagram of the structure of the first pipeline assembly disclosed in this application;

[0042] Figure 8 This is a schematic diagram of the structure of the second pipeline assembly disclosed in this application;

[0043] Figure 9 This is an assembly diagram of the first sealing connection component, the insulating block, the second sealing connection component, and the second temperature sensor disclosed in this application.

[0044] The above figures include the following reference numerals:

[0045] 10. Outer shell; 11. First shell; 12. Second shell; 20. Electrolytic cell stack; 21. Liquid inlet; 22. Liquid outlet; 23. Hydrogen outlet; 30. Liquid inlet channel; 31. First piping assembly; 40. Liquid outlet channel; 41. Second piping assembly; 50. Hydrogen outlet channel; 51. First sealing connection component; 52. Insulating block; 53. Second sealing connection component; 60. Power supply assembly; 70. Controller; 81. First fixing component; 82. Second fixing component; 91. Hydrogen sensor; 9 2. Flow meter; 93. First temperature sensor; 94. Second temperature sensor; 101. First clearance hole; 102. Second clearance hole; 111. Heat dissipation hole; 121. First mounting port; 122. Second mounting port; 311. First pipe; 312. First tee connector; 313. First sealing connector; 411. Second pipe; 412. Second tee connector; 511. First metal connector; 512. Metal connecting pipe; 513. Second metal connector; 531. Third metal connector. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] It is clear that in the electrolytic hydrogen production unit, the electrolytic stack 20 is the core component for hydrogen production, and its manufacturing cost is relatively high. Therefore, protective measures should be added to the electrolytic stack 20 to prevent damage. Specifically, on the one hand, it is necessary to ensure the electrolyte flow rate during electrolysis. If the electrolyte flow rate into the electrolytic stack 20 is lower than its electrolysis rate, it can easily lead to "dry burning," which can severely damage the stack. On the other hand, if the electrolyte flow rate is higher than the electrolysis rate, the electrolyte will not be fully electrolyzed and will be discharged from the stack, resulting in excessive electrolyte consumption and excessively high operating costs for the electrolytic stack 20. On the other hand, it is also necessary to ensure that the electrolytic stack 20 does not leak hydrogen during the hydrogen production process. If the electrolytic stack 20 leaks hydrogen, and the hydrogen electrolysis unit experiences an electrical leakage, the leaked hydrogen can easily cause a hydrogen safety accident, i.e., a hydrogen explosion, under the influence of the current. Furthermore, during electrolysis, the operating temperature of the electrolytic stack 20 should be prevented from becoming too high to avoid damage. However, existing hydrogen electrolysis units lack measures to prevent these situations, making the electrolytic stack 20 susceptible to damage.

[0050] See Figures 1 to 9 As shown, according to an embodiment of this application, an electrolytic hydrogen production device is provided, which includes a housing 10, an electrolytic stack 20, a hydrogen outlet channel 50, a liquid inlet channel 30, a liquid outlet channel 40, a detection component, a power supply component 60, and a controller 70.

[0051] The electrolytic stack 20 is installed inside the outer casing 10. The electrolytic stack 20 includes a main body, an anode plate (not shown), a cathode plate (not shown), and an ion exchange membrane (not shown). An electrolysis chamber (not shown) is provided within the main body. The anode and cathode plates are spaced apart within the electrolysis chamber. 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 21, an outlet 22, and a hydrogen outlet 23. The inlet 21 and outlet 22 communicate with the anode chamber, and the outlet 22 communicates with the cathode chamber. The first end of the hydrogen outlet channel 50 communicates with the hydrogen outlet 23, and the second end of the hydrogen outlet channel 50 extends to the outside of the outer casing 10. The first end of the inlet channel 30 communicates with the inlet 21, and the second end of the inlet channel 30 extends to the outside of the outer casing 10. The first end of the outlet channel 40 communicates with the outlet 22, and the second end of the outlet channel 40 extends to the outside of the outer casing 10. The detection component is housed within the housing 10 and includes a first temperature sensor 93, a flow meter 92, and a hydrogen sensor 91. The hydrogen sensor 91 monitors the hydrogen content within the housing 10, the flow meter 92 monitors the flow rate of the electrolyte flowing into the inlet 21, and the first temperature sensor 93 monitors the temperature of the electrolyte flowing into the outlet channel 40. A power supply component 60 is housed within the housing 10 and is electrically connected to the cathode and anode plates. A controller 70 is electrically connected to at least the detection component and the power supply component 60, and the controller 70 is used to control the connection or disconnection of the power supply component 60 with at least one of the anode and cathode plates based on signals transmitted from the detection component.

[0052] In the hydrogen production process of this embodiment, the electrolyte flows into the inlet 21 through the inlet channel 30 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 electrically connected to the power supply component 60, 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 hydrogen outlet 23 into hydrogen outlet channel 50. 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 generated on the anode plate, and the generated oxygen and electrolyte flow together from the outlet 22 into the outlet channel 40. 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 provide a guiding effect for 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 the hydrogen production efficiency.

[0053] In addition, this embodiment includes a first temperature sensor 93, a flow meter 92, a hydrogen sensor 91, and a controller 70. The hydrogen sensor 91 monitors the hydrogen content inside the outer casing 10, the flow meter 92 monitors the flow rate of the electrolyte flowing into the inlet 21, and the first temperature sensor 93 monitors the temperature of the electrolyte flowing into the outlet channel 40. Specifically, when the hydrogen sensor 91 detects that the hydrogen content inside the outer casing 10 is higher than a predetermined content, it indicates that the electrolytic cell stack 20 is leaking hydrogen. At this time, the hydrogen sensor 91 sends a first electrical signal to the controller 70. After receiving the first electrical signal, the controller 70 controls the power supply component 60 to stop supplying power to the anode and cathode plates, thereby preventing the leaked hydrogen from causing a safety accident. When the first temperature sensor 93 detects that the temperature of the electrolyte flowing into the outlet channel 40 is higher than a predetermined first temperature, the operating temperature of the electrolytic stack 20 is too high. To prevent damage to the electrolytic stack 20 due to overheating, the first temperature sensor 93 sends a second electrical signal to the controller 70. Upon receiving the second electrical signal, the controller 70 controls the power supply component 60 to stop supplying power to the anode and cathode plates. Furthermore, when the flow meter 92 detects that the flow rate of the electrolyte flowing into the inlet 21 is higher than a predetermined flow range, the flow meter 92 sends a third electrical signal to the controller 70. Similarly, upon receiving the third electrical signal, the controller 70 controls the power supply component 60 to stop supplying power to the anode and cathode plates, preventing damage to the electrolytic stack 20 or excessive electrolyte consumption. On the other hand, this application also provides an outer casing 10 around the electrolytic stack 20. The outer casing 10 further improves the protective performance of the electrolytic stack 20, preventing external water stains and dust from entering the electrolytic stack 20 and affecting it. Compared with the prior art, this embodiment comprehensively considers three aspects that make the electrolytic stack 20 prone to damage: the flow rate of the electrolyte flowing into the electrolysis chamber, the operating temperature of the electrolytic stack 20, and whether the electrolytic stack 20 is leaking hydrogen. It also adds protective measures to the electrolytic stack 20 to avoid easy damage to the electrolytic stack 20.

[0054] In some embodiments, the predetermined content is greater than 0, meaning that hydrogen gas is present inside the outer casing 10. In this case, the hydrogen sensor 91 will send a first electrical signal to the controller 70. The predetermined first temperature is 60°C. When the operating temperature of the electrolytic stack 20 exceeds 60°C, the electrolytic stack 20 should be shut down to prevent damage due to overheating. The predetermined flow range is not specifically limited in this embodiment and can be adaptively adjusted according to the size of the electrolytic stack 20. The power supply component 60 can be a connector electrically connected to the cathode plate and anode plate. When the power supply component 60 is a connector, an external power source is electrically connected to the connector, thereby enabling the power supply component 60 to provide current to the anode plate and cathode plate.

[0055] Furthermore, the outer casing 10 is provided with a first clearance hole 101 and a second clearance hole 102. The electrolytic hydrogen production device also includes a first pipe assembly 31, which is located inside the outer casing 10. The first end of the first pipe assembly 31 is connected to the liquid inlet 21, and the second end of the first pipe assembly 31 passes through the first clearance hole 101 into the outer casing 10. A flow meter 92 is located at the end of the first pipe 311 near the liquid inlet 21. The first pipe assembly 31 has a liquid inlet channel 30.

[0056] Optionally, the electrolytic hydrogen production device also includes a second pipe assembly 41, which is located inside the outer casing 10. The first end of the second pipe assembly 41 is connected to the liquid outlet 22, and the second end of the second pipe 411 passes through the outer casing 10 via a second clearance hole 102. A first temperature sensor 93 is disposed at one end of the second pipe 411 near the liquid outlet 22. The second pipe assembly 41 has a liquid outlet channel 40 inside.

[0057] Specifically, in this embodiment, the first pipeline assembly 31, the second pipeline assembly 41, the electrolytic stack 20, the controller 70, and the power supply assembly 60 are all integrated within the housing 10. One advantage of this design is that it facilitates rapid assembly of the electrolytic hydrogen production device. When electrolysis is required, the external electrolyte delivery pipeline is connected to the second end of the first pipeline assembly 31, the external hydrogen receiving pipeline is connected to the hydrogen outlet channel 50, and the external oxygen and electrolyte receiving channel is connected to the second end of the second pipeline assembly 41. The external power supply is then connected to the power supply assembly 60 to achieve electrolysis. Simultaneously, the housing 10 provides protection for the first pipeline assembly 31, the second pipeline assembly 41, the electrolytic stack 20, the controller 70, and the power supply assembly 60.

[0058] Further, the first pipeline assembly 31 includes a first pipeline 311, a first tee connector 312, and a first sealing connector 313. The first tee connector 312 includes a first interface, a second interface, and a third interface. The first end of the first pipeline 311 is connected to the first interface, and the second end of the first pipeline 311 passes through the outer casing 10 via a first clearance hole 101. The first sealing connector 313 connects the second interface and the liquid inlet 21. The flow meter 92 is connected to the third interface. The second pipeline assembly 41 includes a second pipeline 411 and a second tee connector 412. The second tee connector 412 includes a fourth interface, a fifth interface, and a sixth interface. The first end of the second pipeline 411 is connected to the fourth interface, and the second end of the second pipeline 411 passes through the second clearance hole 102 into the outer casing 10. The fifth interface is connected to the liquid outlet 22, and the first temperature sensor 93 is connected to the sixth interface.

[0059] Understandably, in order to accurately measure the flow rate of the electrolyte flowing into the inlet 21 and the temperature of the electrolyte flowing out of the outlet 22, a first tee connector 312 needs to be provided on the first pipe assembly 31, and a second tee connector 412 needs to be provided on the second pipe assembly 41. This allows the flow meter 92 to be positioned near the inlet 21, and the first temperature sensor 93 to be positioned near the outlet 22. Furthermore, this embodiment also employs a first sealing connector 313, and the second tee connector 412 is sealed to the outlet 22, thereby ensuring a sealing effect on the first pipe assembly 31 and preventing electrolyte leakage from the connections between the first tee connector 312 and the first sealing connector 313, the first sealing connector 313 and the inlet 21, and the second sealing connector and the outlet 22.

[0060] In some embodiments, the first pipe 311, the first tee connector 312, the first sealing connector 313, the second tee connector 412, the second sealing connector, and the second pipe 411 are all made of plastic insulating materials, thereby improving the insulation performance between the electrolyte in the first pipe assembly 31 and the second pipe assembly 41 and the electrolytic stack 20.

[0061] Furthermore, the electrolytic hydrogen production device also includes an insulating block 52, a first sealing connection component 51, and a second sealing connection component 53. The insulating block 52 is disposed within the outer casing 10, and a first channel is provided within the insulating block 52. The first sealing connection component 51 is located within the outer casing 10, connecting the first end of the first channel to the hydrogen outlet 23. One end of the second sealing connection component 53 communicates with the second end of the first channel, and the other end of the second sealing connection component 53 extends to the outside of the outer casing 10. A hydrogen outlet channel 50 is formed between the first sealing connection component 51, the first channel, and the second sealing connection component 53.

[0062] Specifically, the first sealing connection component 51 and the second sealing connection component 53 in this embodiment improve the sealing performance of the hydrogen outlet channel 50 and the connection between the hydrogen outlet channel 50 and the hydrogen outlet port 23, preventing hydrogen leakage from the hydrogen outlet channel 50 and the connection between the hydrogen outlet channel 50 and the hydrogen outlet port 23. The second sealing connection component 53 is used for a sealed connection with the external hydrogen receiving channel to ensure sealing performance. Simultaneously, an insulating block 52 is also provided in this embodiment. The design of the insulating block 52 prevents externally leaking electric arcs from entering the electrolysis chamber through the hydrogen outlet channel 50, or prevents leaking electric arcs from the electrolysis stack 20 from contacting the hydrogen in the hydrogen outlet channel 50, thereby preventing hydrogen safety accidents in the electrolytic hydrogen production device.

[0063] In some embodiments, the first sealing connection component 51 includes a first metal connector 511, a metal connecting pipe 512, and a second metal connector 513, and the second sealing connection component 53 includes a third metal connector 531. It is understood that because the hydrogen gas in the hydrogen outlet channel 50 has a high temperature, the high-temperature hydrogen gas is prone to react with non-metallic substances, thereby causing hydrogen safety accidents or degrading the performance of non-metallic substances, making hydrogen leakage easy. Therefore, considering both safety and manufacturing costs, both the first sealing connection component 51 and the second sealing connection component 53 are made of stainless steel. The insulating block 52 can be selected from at least one of mica block, alumina ceramic block, and polytetrafluoroethylene block.

[0064] Furthermore, the detection assembly also includes a second temperature sensor 94, which is disposed on the insulating block 52 and is electrically connected to the controller 70.

[0065] Specifically, because the insulating block 52 made of some materials may deform at high temperatures—that is, its insulating properties may become non-insulating or it may be damaged—the second temperature sensor 94 needs to constantly monitor the temperature of the insulating block 52 to prevent damage or deformation of the insulating block 52, which could lead to damage or safety accidents in the electrolytic hydrogen production device. In other words, when the temperature monitored by the second temperature sensor 94 is higher than a second predetermined temperature, the second temperature sensor 94 sends a fourth electrical signal to the controller 70. Upon receiving the fourth electrical signal, the controller 70 controls the power supply component 60 to stop supplying power to the anode and cathode plates, thereby stopping the hydrogen production operation of the electrolytic hydrogen production device. In some embodiments, the second predetermined temperature can be set to 160°C.

[0066] Furthermore, the electrolytic hydrogen production device also includes a first fixing member 81 and a second fixing member 82. The outer casing 10 includes a first housing 11 and a second housing 12, with the first housing 11 covering the second housing 12. The electrolytic stack 20 is fixedly connected to the first housing 11 via the first fixing member 81, and the electrolytic stack 20 is fixedly connected to the second housing 12 via the second fixing member 82. The hydrogen sensor 91 is disposed on the inner wall surface of the first housing 11 and / or the second housing 12.

[0067] In this embodiment, the first housing 11 is provided with a first concave-convex structure, and the second housing 12 is provided with a second concave-convex structure adapted to the first concave-convex structure. When the electrolytic stack 20 is connected to the first housing 11 and the second housing 12 respectively, the first concave-convex structure and the second concave-convex structure cooperate, so that the first housing 11 covers the second housing 12. In addition, the hydrogen sensor 91 can be disposed on the inner wall surface of the first housing 11 or on the inner wall surface of the second housing 12. Multiple hydrogen sensors 91 can also be included, with some spaced apart on the inner wall surface of the first housing 11 and some spaced apart on the inner wall surface of the second housing 12. When one hydrogen sensor 91 sends a first electrical signal to the controller 70, the controller 70 still needs to control the power supply component 60 to stop supplying power to the anode plate and cathode plate, thereby ensuring the safety of the electrolytic hydrogen production device.

[0068] In some embodiments, the first housing 11 is disposed on top of the second housing 12, and the first housing 11 has heat dissipation holes 111.

[0069] Specifically, since the second housing 12 is located at the bottom of the first housing 11, when the electrolytic stack 20 is fixed inside the outer casing 10, the second housing 12 is mainly affected by the gravity of the electrolytic stack 20. If the structural strength of the second housing 12 is low, it may cause the second housing 12 to crack and be damaged. Therefore, in order to avoid the above problem, this embodiment provides heat dissipation holes 111 on the first housing 11. The heat dissipation holes 111 can improve the heat dissipation capacity of the electrolytic stack 20 and prevent the operating temperature of the electrolytic stack 20 from being too high.

[0070] Optionally, the outer casing 10 is provided with a plurality of heat dissipation holes 111. The electrolytic hydrogen production device also includes an adjustment unit (not shown in the figure). The adjustment unit is disposed on the outer casing 10 and is electrically connected to the controller 70. The adjustment unit is at least used to make the heat dissipation holes 111 communicate with or close the outside of the outer casing 10, and to adjust the total area of ​​the plurality of heat dissipation holes 111 communicating with the outside.

[0071] In some embodiments, the first housing 11 is provided with a plurality of heat dissipation holes 111. The adjustment part includes a drive motor, a lead screw, and a baffle. The baffle is disposed on the outer periphery of the housing 10. The lead screw is connected to the drive motor and the baffle. The motor drives the lead screw to rotate, thereby causing the baffle to reciprocate on the outer peripheral surface of the housing 10, thereby adjusting the total area of ​​the plurality of heat dissipation holes 111 communicating with the outside. In some embodiments, when the temperature detected by the first temperature sensor 93 is higher than a third predetermined temperature but lower than a first predetermined temperature, the first temperature sensor 93 sends a fifth electrical signal to the controller 70, causing the controller 70 to control the drive motor to start, thereby causing the baffle to move in the direction of increasing the total area of ​​the plurality of heat dissipation holes 111 communicating with the outside, thereby improving the heat dissipation capacity of the electrolytic cell stack 20. In some embodiments, the third predetermined temperature can be set between 50°C and 55°C. In this embodiment, the first temperature sensor is a PT1000 temperature sensor, and the second temperature sensor is an NTC temperature sensor.

[0072] Furthermore, the second housing 12 has a first mounting port 121 and a second mounting port 122. The controller 70 is embedded in the first mounting port 121, and the power supply component 60 is embedded in the second mounting port 122.

[0073] Specifically, since the second housing 12 is located at the bottom of the first housing 11, when assembling the electrolysis hydrogen production device, the electrolysis stack 20 is first fixed to the second mounting port 122 of the first housing 11, and then the power supply component 60 needs to be connected to the electrolysis stack 20. Therefore, setting the power supply component 60 on the second housing 12 can improve the convenience of assembling the electrolysis hydrogen production device. Similarly, after assembling the power supply component 60 and the electrolysis stack 20, the controller 70 also needs to be connected to each sensor and the power supply component 60. Therefore, in this embodiment, the controller 70 is located in the first mounting port 121 of the second housing 12. It can be understood that since the controller 70 is embedded in the first mounting port 121 and the power supply component 60 is embedded in the second mounting port 122, when the controller 70 and the power supply component 60 need to be maintained, it is not necessary to disassemble the first housing 11 and the second housing 12; they can be maintained directly from the outside of the second housing 12.

[0074] In this embodiment, the outer casing 10 can be made of flame-retardant material to prevent the electrolytic hydrogen production device from easily igniting after high temperatures or short circuits. In other words, even if the electrolytic hydrogen production device spontaneously combusts, the flame-retardant outer casing 10 will prevent the flame from spreading to other external equipment. The outer casing 10 includes at least one of polyvinyl chloride (PVC), polycarbonate, polyphenylene ether (PPE), and thermoplastic polyester. Specifically, the outer casing 10 is preferably made of a flame-retardant and insulating material to prevent externally leaked electric arcs from affecting the electrolytic hydrogen production device.

[0075] Optionally, the outer peripheral surface and / or inner wall surface of the outer casing 10 are provided with a flame-retardant layer, which includes at least one of aluminum hydroxide coating, magnesium hydroxide coating, nano clay coating and nano alumina coating.

[0076] It is understood that the outer casing 10 can be made of ordinary plastic material, but a flame-retardant layer needs to be provided on the outer peripheral surface and / or inner wall surface of the outer casing 10 to prevent the spontaneous combustion of the electrolytic hydrogen production device from spreading to other external equipment, or to a certain extent prevent the electrolytic hydrogen production device from spontaneously combusting. Similarly, the coating can be an insulating flame-retardant coating, such as an aluminum hydroxide coating, a magnesium hydroxide coating, a nano-clay coating, or a nano-alumina coating. Preferably, the flame-retardant layer is nano-alumina, as the nano-scale coating provides better flame retardancy and insulation.

[0077] On the other hand, this application also provides a hydrogen production system, which includes the electrolytic hydrogen production device in the above embodiments. Therefore, this hydrogen production system includes all the technical effects of the electrolytic hydrogen production device in the above embodiments. Since the technical effects of the electrolytic hydrogen production device have been described in detail above, they will not be repeated here.

[0078] In summary, this application integrates the detection components, electrolytic stack 20, controller 70, and power supply component 60 into a single unit through the housing 10. The housing 10 provides protection for these components and facilitates the movement of the hydrogen electrolysis device, improving its convenience. Furthermore, by monitoring the hydrogen content inside the housing 10, the flow rate of the electrolyte flowing into the inlet 21, and the temperature of the electrolyte flowing out of the outlet 22, the controller 70 controls the hydrogen electrolysis device, providing triple protection to ensure its safety and prevent damage. In addition, to ensure the sealing and insulation performance of the hydrogen outlet channel 50 and the connection between the hydrogen outlet channel 50 and the hydrogen outlet 23, this application also includes a first sealing connection component 51, a second sealing connection component 53, and an insulating block 52 within the housing 10. In addition, this application provides a plurality of heat dissipation holes 111 on the outer casing 10, and provides an adjustment part to adjust the total area of ​​the plurality of heat dissipation holes 111 communicating with the outside, thereby adjusting the heat dissipation performance of the electrolytic stack 20. Finally, the outer casing 10 of this application is made of an insulating and flame-retardant outer casing 10, and / or the outer casing 10 is provided with an insulating and flame-retardant coating to prevent the electrolytic hydrogen production device from spontaneously combusting and affecting external components.

[0079] 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.

[0080] 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.

[0081] 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. An electrolytic hydrogen production apparatus, characterized in that, include: Outer shell (10); An electrolytic stack (20) is installed inside the outer casing (10). The electrolytic stack (20) 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 (21), a liquid outlet (22), and a hydrogen outlet (23). The liquid inlet (21) and the liquid outlet (22) are connected to the anode chamber, and the liquid outlet (22) is connected to the cathode chamber. Hydrogen outlet channel (50), the first end of which is connected to the hydrogen outlet (23), and the second end of which extends to the outside of the outer shell (10); Liquid inlet channel (30), the first end of which is connected to the liquid inlet (21), and the second end of which extends to the outside of the outer shell (10); A liquid outlet channel (40) is provided, the first end of which is connected to the liquid outlet (22), and the second end of which extends to the outside of the outer shell (10). The detection component is disposed inside the outer casing (10). The detection component includes a first temperature sensor (93), a flow meter (92), and a hydrogen sensor (91). The hydrogen sensor (91) is used to monitor the hydrogen content inside the outer casing (10), the flow meter (92) is used to monitor the flow rate of the electrolyte flowing into the inlet (21), and the first temperature sensor (93) is used to monitor the temperature of the electrolyte flowing into the outlet channel (40). A power supply assembly (60) is disposed in the housing (10) and is electrically connected to the cathode plate and the anode plate; A controller (70) is electrically connected to at least the detection component and the power supply component (60), and the controller (70) is at least used to control the power supply component (60) to connect or disconnect with at least one of the anode plate and the cathode plate according to the signal transmitted by the detection component.

2. The electrolytic hydrogen production apparatus according to claim 1, characterized in that, The outer casing (10) is provided with a first clearance hole (101) and a second clearance hole (102); The electrolytic hydrogen production device further includes a first pipe assembly (31), which is located inside the outer casing (10). A first end of the first pipe assembly (31) is connected to the liquid inlet (21), and a second end of the first pipe assembly (31) passes through the outer casing (10) via the first clearance hole (101). A flow meter (92) is located at one end of the first pipe (311) near the liquid inlet (21). The first pipe assembly (31) has a liquid inlet channel (30). And / or, The electrolytic hydrogen production device further includes a second pipe assembly (41), which is located inside the outer casing (10). The first end of the second pipe assembly (41) is connected to the liquid outlet (22), and the second end of the second pipe (411) passes through the outer casing (10) through the second clearance hole (102). The first temperature sensor (93) is located at one end of the second pipe (411) near the liquid outlet (22), and the second pipe assembly (41) has the liquid outlet channel (40).

3. The electrolytic hydrogen production apparatus according to claim 2, characterized in that, The first pipe assembly (31) includes a first pipe (311), a first tee connector (312), and a first sealing connector (313). The first tee connector (312) includes a first interface, a second interface, and a third interface. The first end of the first pipe (311) is connected to the first interface. The second end of the first pipe (311) passes through the outer casing (10) through the first clearance hole (101). The first sealing connector (313) is connected between the second interface and the liquid inlet (21). The flow meter (92) is connected to the third interface. The second pipe assembly (41) includes a second pipe (411) and a second tee connector (412). The second tee connector (412) includes a fourth interface, a fifth interface and a sixth interface. The first end of the second pipe (411) is connected to the fourth interface. The second end of the second pipe (411) passes through the second clearance hole (102) and is installed in the outer shell (10). The fifth interface is connected to the liquid outlet (22). The first temperature sensor (93) is connected to the sixth interface.

4. The electrolytic hydrogen production apparatus according to claim 1, characterized in that, The electrolytic hydrogen production device also includes: An insulating block (52) is disposed inside the outer casing (10), and a first channel is provided inside the insulating block (52); The first sealing connection component (51) is located inside the outer shell (10) and is connected between the first end of the first channel and the hydrogen outlet (23). The second sealing connection component (53) has one end connected to the second end of the first channel, and the other end of the second sealing connection component (53) extends to the outside of the outer casing (10); The hydrogen outlet channel (50) is formed between the first sealing connection component (51) and the first channel second sealing connection component (53).

5. The electrolytic hydrogen production apparatus according to claim 4, characterized in that, The detection component also includes a second temperature sensor (94), which is disposed on the insulating block (52) and electrically connected to the controller (70).

6. The electrolytic hydrogen production apparatus according to claim 1, characterized in that, The electrolytic hydrogen production device also includes a first fixing component (81) and a second fixing component (82); The outer casing (10) includes a first casing (11) and a second casing (12). The first casing (11) covers the second casing (12). The electrolytic stack (20) is fixedly connected to the first casing (11) through the first fixing member (81). The electrolytic stack (20) is fixedly connected to the second casing (12) through the second fixing member (82). The hydrogen sensor (91) is disposed on the inner wall surface of the first casing (11) and / or the second casing (12).

7. The electrolytic hydrogen production apparatus according to claim 6, characterized in that, The first housing (11) is disposed on top of the second housing (12), and the first housing (11) has heat dissipation holes (111); and / or, The outer casing (10) is provided with a plurality of heat dissipation holes (111). The electrolytic hydrogen production device also includes an adjustment unit, which is disposed on the outer casing (10) and electrically connected to the controller (70). The adjustment unit is at least used to make the heat dissipation holes (111) communicate with or close the outside of the outer casing (10), and to adjust the total area of ​​the plurality of heat dissipation holes (111) communicating with the outside.

8. The electrolytic hydrogen production apparatus according to claim 6, characterized in that, The second housing (12) has a first mounting port (121) and a second mounting port (122). The controller (70) is embedded in the first mounting port (121), and the power supply component (60) is embedded in the second mounting port (122).

9. The electrolytic hydrogen production apparatus according to any one of claims 1 to 8, characterized in that, The outer shell (10) comprises at least one of a polyvinyl chloride shell, a polycarbonate shell, a polyphenylene ether shell, and a thermoplastic polyester shell; and / or, The outer peripheral surface and / or inner wall surface of the outer shell (10) are provided with a flame-retardant layer, the flame-retardant layer including at least one of aluminum hydroxide coating, magnesium hydroxide coating, nano clay coating and nano alumina coating.

10. A hydrogen production system, characterized in that, The hydrogen production system includes the electrolytic hydrogen production apparatus according to any one of claims 1 to 9.

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