A fuel cell power plant based on a water-splitting hydrogen generation unit

Abstract

The present application relates to the technical fields of hydrogen production reaction device, in particular to a fuel cell power supply equipment based on hydrolysis hydrogen production unit, which comprises a shell, a reaction mechanism and a separation and purification mechanism are arranged in the shell; the reaction mechanism comprises a raw material liquid inlet tank and a fuel tank, both of which are connected through a first pipe body, and a peristaltic pump is arranged on the first pipe body; the separation and purification mechanism comprises an impurity separator, a drying and condensing mechanism and a dehumidifier which are sequentially connected through a second pipe body, a decontamination mechanism is arranged in the impurity separator, a dehumidification mechanism is arranged in the dehumidifier, the dehumidifier is connected with the fuel cell through a third pipe body, and a hydrogen buffer tank is arranged on the third pipe body; the fuel cell is connected with the raw material liquid inlet tank. The present application adopts a modular hydrogen production unit design, constructs an easy-to-disassemble fuel cell hydrogen supply system, and uses an on-site hydrogen production mode to stably and durably supply hydrogen for the fuel cell, which breaks through the limitations of hydrogen production and storage difficulties and high transportation cost.

Description

Technical Field

[0001] This invention relates to the field of water electrolysis hydrogen production reaction device technology, specifically a fuel cell power supply device based on a water electrolysis hydrogen production unit. Background Technology

[0002] In recent years, the traditional portable power bank industry has developed rapidly, making many improvements and enhancements in various aspects of its products. However, when faced with the rapid development of electronic products, existing portable power banks are limited by performance issues such as battery life, portability, and stability, making it difficult to keep pace with them. Faced with these pain points hindering industry development, the traditional portable power bank industry has yet to offer a proper solution. Currently, the mainstream energy storage power source is lithium-ion batteries. While these have high energy density and good cycle charging and discharging performance, they suffer from poor safety, posing an explosion risk, and exhibiting poor low-temperature performance and severe capacity decay. Furthermore, since energy storage batteries are rechargeable, increasing their capacity requires increasing the number of battery packs, making it difficult to balance portability and longevity. Other types of emergency power sources, such as solar cells, are greatly affected by environmental factors such as time, climate, and season, resulting in unstable power output and an inability to guarantee immediate and rapid power response. Traditional fuel generators generate severe noise and environmental pollution, are complex to operate, prone to malfunctions, and require long preheating times to reach maximum power, leading to significant resource waste.

[0003] The rapid development of hydrogen energy and fuel cells in recent years has provided a good solution to the current predicament faced by portable power banks. Hydrogen energy is a new type of energy with high calorific value and pollution-free combustion products; proton exchange membrane fuel cells, as a direct form of hydrogen energy utilization, can directly convert hydrogen and oxygen from chemical energy into electrical energy, featuring high energy density, high conversion efficiency, and environmental friendliness. Facing the current market demand for portable power banks that are lightweight, safe, and have long-lasting power, the high specific energy, high conversion efficiency, and stable operating performance of hydrogen fuel cells can well meet these needs.

[0004] However, hydrogen fuel cells have not yet achieved widespread civilian use, mainly due to difficulties in hydrogen production and storage, high transportation costs, and the lack of stable and efficient hydrogen supply technologies for fuel cells. Using hydrogen production materials such as alloys (hydrides) and borohydrides to react with water to produce hydrogen has many advantages, but currently reported water electrolysis hydrogen production devices both domestically and internationally suffer from drawbacks such as complex structure, poor integration, low system hydrogen production rate, and inability to be disassembled. Therefore, a safe, controllable, and structurally simple hydrogen production device is needed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a fuel cell power supply device based on a water electrolysis hydrogen production unit. This invention employs a modular hydrogen production unit design to construct an easily detachable fuel cell hydrogen supply system, providing a stable and continuous hydrogen supply to the fuel cell through on-site hydrogen production. This effectively overcomes the limitations of difficult hydrogen production and storage, and high transportation costs. Furthermore, based on the characteristics of fuel cells, this invention adopts a more scientific integrated and modular technology, with an integrated design of the reaction mechanism, impurity separator, drying and condensation mechanism, and dehumidifier. While ensuring high fuel utilization, it also significantly improves in terms of size and weight, resulting in a portable, detachable fuel cell power supply device based on a water electrolysis hydrogen production unit.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A fuel cell power device based on a water electrolysis hydrogen production unit includes a housing, within which a reaction mechanism and a separation and purification mechanism are disposed. The reaction mechanism is used for catalytic hydrogen production.

[0008] The reaction mechanism includes a raw material inlet tank and a fuel tank, which are connected through a first pipe body, on which a peristaltic pump is installed.

[0009] The separation and purification mechanism includes an impurity separator, a drying and condensing mechanism, and a dehumidifier that are sequentially connected through a second pipe. The impurity separator is connected to the fuel tank. The impurity separator is equipped with an impurity removal mechanism, and the dehumidifier is equipped with a dehumidification component.

[0010] The dehumidifier is connected to the fuel cell through a third tube, and a hydrogen buffer storage tank is provided on the third tube.

[0011] The fuel cell is also connected to the feed tank.

[0012] Preferably, the impurity removal mechanism includes an acid and alkali removal chamber and a particulate matter adsorption chamber. A resin layer is provided on the outlet of the acid and alkali removal chamber. The acid and alkali removal chamber is connected in a continuous manner to the particulate matter adsorption chamber. A solid adsorption layer is provided on the outlet of the particulate matter adsorption chamber.

[0013] Preferably, the drying and condensing mechanism includes a spherical drying tube and a filling tube, the filling tube being disposed on the spherical drying tube and filled with adsorbent contents, the adsorbent contents including but not limited to activated carbon and adsorbent cotton.

[0014] Preferably, the dehumidification component includes a dehumidification tube and a molecular sieve, wherein a plurality of the dehumidification tubes are arranged in an arc shape and connected in a continuous manner, the dehumidification tubes are disposed inside the dehumidifier, and the molecular sieve is filled inside the dehumidification tubes.

[0015] Preferably, a back pressure valve is also provided on the third pipe between the hydrogen buffer storage tank and the fuel cell, and a solenoid valve is also provided between the back pressure valve and the hydrogen buffer storage tank.

[0016] Preferably, the fuel cell and the feed tank are connected through a fourth pipe, and a gas-liquid separator is provided on the fourth pipe. The gas-liquid separator is also connected through the second pipe.

[0017] Preferably, the fuel tank is filled with conventional hydrolysis hydrogen production materials and catalysts. The hydrolysis hydrogen production materials include, but are not limited to, magnesium hydride and sodium borohydride. An atomizing nozzle is provided at the end of the first tube that extends into the fuel tank.

[0018] The raw material inlet tank is filled with raw material liquid, and a feed pipe is provided on the raw material inlet tank, and a switch is provided on the feed pipe.

[0019] Preferably, the outer casing has ventilation openings, and a heat sink is also provided on the side wall of the outer casing.

[0020] Preferably, a fifth pipe is also provided through the second pipe, the fifth pipe is provided with a safety valve, and the second pipe and the fuel tank can be detachably connected via a first sealing connector. A second sealing connector is detachably connected to the first pipe, and the second sealing connector has the same structure as the first sealing connector.

[0021] Preferably, the fuel tank is equipped with a liquid level sensor, the inner wall of the outer casing is also equipped with a controller and an energy storage battery, and the outer wall of the outer casing is equipped with an operation panel. The controller is electrically connected to the liquid level sensor, the operation panel, the peristaltic pump, the solenoid valve and the energy storage battery, respectively. The energy storage battery can also be electrically connected to the fuel cell.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention adopts a portable power system design composed of solid hydride online hydrogen production technology coupled with proton exchange membrane fuel cells. It adopts a modular hydrogen production unit design to construct an easily detachable fuel cell hydrogen supply system, providing a stable and continuous hydrogen supply to the fuel cell through on-site hydrogen production, which effectively overcomes the limitations of difficult hydrogen production and storage and high transportation costs. At the same time, based on the characteristics of fuel cells, this invention adopts more scientific integration and modular technology, with an integrated design of reaction mechanism, impurity separator, drying and condensation mechanism and dehumidifier, etc. While ensuring high fuel utilization, it also has significant improvements in volume and weight, resulting in a highly integrated, high system hydrogen production rate, simple structure, and portable and detachable fuel cell power system.

[0024] This invention has a high system hydrogen storage capacity. The device design of this invention maximizes the hydrogen production capacity of the hydrogen production material through hydrolysis, that is, the hydrogen production rate is controlled by the rate of adding the reaction liquid, avoiding the impact of excessive reaction liquid on the system hydrogen storage capacity. In addition, the water, a by-product of fuel cell operation, can be recycled to the feed liquid tank for further hydrolysis reaction.

[0025] 2. This invention creatively incorporates a reaction mechanism and a separation and purification mechanism, which are detachably connected via a first sealing connector and a second sealing connector. This facilitates the replacement of the fuel tank, increases hydrogen production, and extends the stable power supply time, enabling long-term, uninterrupted hydrogen production and power generation. Simultaneously, the fuel tank can be recycled and reused, reducing overall operating costs and overcoming the technical problem that current hydrogen production devices cannot be disassembled.

[0026] 3. The present invention provides a portable power system for hydrogen fuel cells, which produces hydrogen online by reacting water with hydrogen production materials, and supplies hydrogen to proton exchange membrane fuel cells for power generation. It has the characteristics of being ready to use immediately, having high energy density, providing power for a long time, and being free from noise or environmental pollution. It makes starting and stopping convenient, and the power generation of the fuel cell is adjustable. The amount and rate of hydrogen production can be controlled by controlling the reaction liquid delivery device, thereby controlling the power generation.

[0027] 4. The fuel cell provided by this invention is safe and controllable. The fuel cell power equipment integrates pressure detection devices and is equipped with an exhaust valve. There are no safety hazards. The equipment does not generate noise or other pollution during operation and is green and environmentally friendly. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the internal structure of a fuel cell power device based on a water electrolysis hydrogen production unit according to the present invention.

[0029] Figure 2 This is a schematic diagram of the internal structure of the impurity separator in a fuel cell power device based on a water electrolysis hydrogen production unit according to the present invention.

[0030] Figure 3 This is a schematic diagram of the internal structure of the dehumidifier in a fuel cell power device based on a water electrolysis hydrogen production unit according to the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Raw material inlet tank; 2. Peristaltic pump; 3. Hydrogen buffer tank; 4. Radiator; 5. Fuel tank; 6. Hydrogen production material and catalyst by hydrolysis; 7. First sealing connector; 8. Safety valve; 9. Spherical drying tube; 10. Atomizing nozzle; 11. Fuel cell; 12. Liquid level sensor; 13. Back pressure valve; 14. Dehumidifier; 15. Impurity separator; 16. Acid and alkali removal chamber; 17. Resin layer; 18. Particulate matter adsorption chamber; 19. Filling tube; 20. Vent; 21. Outer shell; 22. First tube body; 23. Gas-liquid separator; 24. Second tube body; 25. Third tube body; 26. Feed pipe; 27. Fifth tube body; 28. Solid adsorption layer; 29. ​​Fourth tube body; 30. Energy storage battery; 31. Dehumidifier tube; 32. Solenoid valve; 33. Control panel. Detailed Implementation

[0033] The specific embodiments of the present invention are described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Unless otherwise specified, the experimental methods in the embodiments of the present invention are conventional methods.

[0034] Example 1

[0035] A fuel cell power device based on a water electrolysis hydrogen production unit, such as Figure 1-2 As shown, the fuel cell includes a housing 21, which enables its portability. The housing 21 houses a reaction mechanism and a separation and purification mechanism. The reaction mechanism is used for catalytic hydrogen production, and the separation and purification mechanism is used for hydrogen purification and utilization.

[0036] The reaction mechanism includes a raw material inlet tank 1 and a fuel tank 5, which are connected through a first pipe 22. A peristaltic pump 2 is installed on the first pipe 22. The peristaltic pump 2 transports the raw material liquid in the raw material inlet tank 1 to the fuel tank 5. After the raw material liquid comes into contact with the hydrolysis hydrogen production material and the catalyst, a reaction occurs to start hydrogen production.

[0037] The separation and purification mechanism includes an impurity separator 15, a drying and condensing mechanism, and a dehumidifier 14, which are sequentially connected through a second pipe 24. The impurity separator 15 is connected to the fuel tank 5. The impurity separator 15 is equipped with a purification mechanism to remove acid and alkali products generated after the reaction or to remove acidic or alkaline raw materials. The dehumidifier 14 is equipped with a dehumidification mechanism for efficient water removal, thereby purifying the gas. The impurity separator 15, the drying and condensing mechanism, and the dehumidifier 14 work together to purify hydrogen.

[0038] The dehumidifier 14 is connected to the fuel cell 11 through the third tube 25. The third tube 25 is equipped with a hydrogen buffer tank 3, which is a buffer tank or air bag used for short-term storage of hydrogen.

[0039] The fuel cell 11 is also connected to the raw material inlet tank 1, and the water produced by the reaction of the fuel cell 11 flows back into the raw material inlet tank 1.

[0040] Furthermore, such as Figure 2 As shown, the impurity removal mechanism includes an acid and alkali removal chamber 16 and a particulate matter adsorption chamber 18. A resin layer 17 is provided at the outlet of the acid and alkali removal chamber 16. The resin layer 17 is a mixture of strong acid cation resin and strong base anion resin. The acid and alkali removal chamber 16 is connected to the particulate matter adsorption chamber 18. A solid adsorption layer 28 is provided at the outlet of the particulate matter adsorption chamber 18. The solid adsorption layer 28 is a solid adsorbent. When hydrogen enters the impurity separator 15, the resin layer 17 is used to remove the acid and alkali first, and then the solid adsorption layer 28 is used to remove the solid matter carried out with the hydrogen.

[0041] Furthermore, the drying and condensing mechanism includes a spherical drying tube 9 and a filling tube 19. The filling tube 19 is disposed on the spherical drying tube 9 and is filled with loose and porous adsorbent contents, including but not limited to activated carbon and adsorbent cotton. The hydrogen gas generated by the reaction first enters the spherical drying tube 9 for drying, and then the particulate matter is filtered out by the adsorbent contents in the filling tube 19 to achieve further impurity removal.

[0042] Furthermore, such as Figure 3 As shown, the dehumidification component includes a dehumidification tube 31 and a molecular sieve. Several dehumidification tubes 31 are arranged in an arc shape and connected in a continuous manner. The dehumidification tubes 31 are disposed in the dehumidifier 14. The molecular sieve is filled in the dehumidification tubes 31. The molecular sieve has a highly efficient water absorption effect. After the water is dried by the spherical drying tube 9, the molecular sieve is used for secondary water removal. Hydrogen gas flows in the pipeline of the dehumidification tube 31. During the flow, the contact area between the water and the molecular sieve is increased, thereby optimizing and controlling the water removal effect.

[0043] Furthermore, a back pressure valve 13 is also provided on the third pipe 25 between the hydrogen buffer tank 3 and the fuel cell 11. The back pressure valve 13 is used to control the hydrogen pressure input into the fuel cell 11. A solenoid valve 32 is also provided between the back pressure valve 13 and the hydrogen buffer tank 3. The solenoid valve 32 is powered by the energy storage battery 30 and controlled by a switch on the operation panel 33. That is, the peristaltic pump 2 switch and the solenoid valve 32 switch are connected in series and electrically connected to the operation panel 33. When the switch on the operation panel 33 is turned on, the peristaltic pump 2 discharges the water in the raw material inlet tank 1 into the fuel tank 5 to produce hydrogen. The solenoid valve 32 is connected, and hydrogen enters the fuel cell 11 to start generating electricity. When the switch on the operation panel 33 is turned off, the peristaltic pump 2 stops working, the solenoid valve 32 closes, and hydrogen stops entering the fuel cell 11. The hydrogen generated during this period enters the hydrogen buffer tank 3.

[0044] Furthermore, the fuel cell 11 is connected to the feed tank 1 via a fourth pipe 29. A gas-water separator 23 is installed on the fourth pipe 29. The gas-water separator 23 is also connected to the second pipe 24. The gas-water separator 23 is a small separator. After the gas-water mixture discharged from the fuel cell 11 is separated by the gas-water separator 23, the water enters the feed tank 1 for reuse, and the hydrogen is processed again by the impurity separator 15, the drying and condensing mechanism and the dehumidifier 14.

[0045] Furthermore, the fuel tank 5 is filled with conventional hydrolysis hydrogen production materials and catalysts. The hydrolysis hydrogen production materials include, but are not limited to, magnesium hydride and sodium borohydride. An atomizing nozzle 10 is provided at the end of the first tube 22 that extends into the fuel tank 5. The atomizing nozzle 10 increases the contact area between the raw material liquid and the hydrolysis hydrogen production materials and catalysts, making the reaction more efficient and complete. The raw material inlet tank 1 is filled with raw material liquid, which is deionized water or an aqueous solution containing catalyst. The raw material inlet tank 1 is provided with a feed pipe 26, which is equipped with a switch. The raw material liquid is added to the fuel tank 5 through the feed pipe 26, and the feed pipe 26 is closed by the switch to prevent the introduction of other impurities. The outlet of the fuel cell 11 is connected to the raw material inlet tank 1.

[0046] Furthermore, the outer casing 21 is provided with a vent 20, through which the depressurized hydrogen gas is discharged. A radiator 4 is also provided on the side wall of the outer casing 21, which realizes heat dissipation and cooling of the entire fuel cell power equipment.

[0047] Furthermore, a fifth pipe 27 is also provided through the second pipe 24. A safety valve 8 is provided on the fifth pipe 27. When the pressure inside the fuel cell exceeds the threshold, the amount of hydrogen is regulated by the safety valve 8. The second pipe 24 and the fuel tank 5 are detachably connected through a first sealing connector 7. A second sealing connector is detachably connected to the first pipe 22. The second sealing connector has the same structure as the first sealing connector 7. The first sealing connector 7 is a quick interface, which makes the fuel tank 5 independent of other systems and allows the fuel tank 5 to be replaced.

[0048] Furthermore, a liquid level sensor 12 is installed on the fuel tank 5, and a controller and an energy storage battery 30 are also installed on the inner wall of the outer shell 21. An operation panel 33 is installed on the outer wall of the outer shell 21. The controller is electrically connected to the liquid level sensor 12, the operation panel 33, the peristaltic pump 2, the solenoid valve 32, and the energy storage battery 30. When the liquid level sensor 12 senses that the liquid level in the fuel tank 5 has reached the maximum liquid level, the controller forces the peristaltic pump 2 to stop working, thereby regulating the hydrogen production. The energy storage battery 30 is also electrically connected to the fuel cell 11, and the fuel cell 11 can also supply power to the energy storage battery 30.

[0049] Usage method: When using this invention, the preparation work is as follows: First, add high-performance hydrolysis hydrogen production materials, such as alloys (hydrides), borohydrides and catalysts, to the fuel tank 5, and then add raw material liquid to the raw material liquid storage tank 1 to the appropriate water level.

[0050] Start working: Turn on the switch on the operation panel 33, and start the peristaltic pump 2 through the controller. Adjust the flow rate of the peristaltic pump 2. The peristaltic pump 2 delivers the raw material liquid in the raw material liquid storage tank 1 to the fuel tank 5. After the raw material liquid comes into contact with the catalyst, a reaction occurs to start hydrogen production. The hydrogen produced by the reaction first enters the impurity separator 15 for acid removal, alkali removal and solid particle removal. Then it enters the spherical drying tube 9 for drying. Then it passes through the adsorption contents in the filling tube 19 for secondary filtration to remove particulate matter. Finally, it enters the dehumidifier 14 for further dehumidification to obtain purified hydrogen. The purified hydrogen is first stored in the hydrogen buffer storage tank 3 and then used by the fuel cell.

[0051] Internal water circulation: Water, a byproduct of the operation of fuel cell 11, re-enters the feed liquid storage tank 1 from the fourth tube 29 to participate in hydrogen production again, thereby increasing the hydrogen storage density and material utilization rate of the system. The hydrogen mixed with water is separated by the gas-water separator 23 and then further purified for use.

[0052] Pressure control: The solenoid valve 32 is powered by the energy storage battery 30 and controlled by a switch on the operation panel 33. That is, the peristaltic pump 2 switch and the solenoid valve 32 switch are connected in series and electrically connected to the operation panel 33. When the switch on the operation panel 33 is turned on, the peristaltic pump 2 discharges the water in the feed tank 1 into the fuel tank 5 to produce hydrogen. The solenoid valve 32 is activated, and hydrogen enters the fuel cell 11 to start generating electricity. When the switch on the operation panel 33 is turned off, the peristaltic pump 2 stops working, the feed liquid stops being delivered to the fuel tank 5, the reaction stops, and the fuel cell stops working. At the same time, the solenoid valve 32 closes, and hydrogen stops entering the fuel cell 11. The hydrogen generated during this period enters the hydrogen buffer storage tank 3.

[0053] Pressure safety valve: Back pressure valve 13 is used to control the hydrogen pressure in the fuel cell 11. When the gas pressure in the pipeline reaches the safety set value, the back pressure valve 13 automatically opens and outputs hydrogen to the fuel cell 11.

[0054] When safety valve 8 detects that the pressure inside the entire power supply equipment has reached the high limit, safety valve 8 automatically opens to release the pressure and prevent the system from overpressure and causing danger.

[0055] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A fuel cell power supply device based on a water electrolysis hydrogen production unit, comprising a housing (21), characterized in that... The outer shell (21) is equipped with a reaction mechanism and a separation and purification mechanism. The reaction mechanism is used for catalytic hydrogen production. The reaction mechanism includes a raw material inlet tank (1) and a fuel tank (5), which are connected through a first pipe (22), and a peristaltic pump (2) is provided on the first pipe (22). The separation and purification mechanism includes an impurity separator (15), a drying and condensing mechanism and a dehumidifier (14) that are sequentially connected through a second tube (24), and the impurity separator (15) is connected through the fuel tank (5). The impurity separator (15) is provided with an impurity removal mechanism, and the dehumidifier (14) is provided with a dehumidification mechanism. The dehumidifier (14) is connected to the fuel cell (11) through a third tube (25), and a hydrogen buffer tank (3) is provided on the third tube (25). The fuel cell (11) is connected in a continuous manner to the raw material inlet tank (1); The fuel cell (11) is connected to the feed tank (1) through a fourth pipe (29). A gas-liquid separator (23) is provided on the fourth pipe (29). The gas-liquid separator (23) is also connected to the second pipe (24). The impurity removal mechanism includes an acid and alkali removal chamber (16) and a particulate matter adsorption chamber (18). A resin layer (17) is provided on the outlet of the acid and alkali removal chamber (16). The acid and alkali removal chamber (16) and the particulate matter adsorption chamber (18) are connected in a continuous manner. A solid adsorption layer (28) is provided on the outlet of the particulate matter adsorption chamber (18). The drying and condensing mechanism includes a spherical drying tube (9) and a filling tube (19). The filling tube (19) is disposed on the spherical drying tube (9) and is filled with adsorbent contents, including activated carbon and adsorbent cotton. The dehumidification mechanism includes a dehumidification tube (31) and a molecular sieve. A plurality of the dehumidification tubes (31) are arranged in an arc shape and connected in a continuous manner. The dehumidification tubes (31) are disposed in the dehumidifier (14), and the molecular sieve is filled in the dehumidification tubes (31).

2. The fuel cell power supply device based on a water electrolysis hydrogen production unit according to claim 1, characterized in that, A back pressure valve (13) is also provided on the third pipe (25) between the hydrogen buffer tank (3) and the fuel cell (11), and a solenoid valve (32) is also provided between the back pressure valve (13) and the hydrogen buffer tank (3).

3. A fuel cell power supply device based on a water electrolysis hydrogen production unit according to claim 2, characterized in that, The fuel tank (5) is filled with hydrolysis hydrogen production materials and catalysts. The hydrolysis hydrogen production materials include magnesium hydride and sodium borohydride. An atomizing nozzle (10) is provided on the end of the first tube (22) that extends into the fuel tank (5). The raw material inlet tank (1) is filled with raw material liquid, and a feed pipe (26) is provided on the raw material inlet tank (1), and a switch is provided on the feed pipe (26).

4. A fuel cell power supply device based on a water electrolysis hydrogen production unit according to claim 3, characterized in that, The outer casing (21) has a ventilation opening (20), and a radiator (4) is provided on the side wall of the outer casing (21).

5. A fuel cell power supply device based on a water electrolysis hydrogen production unit according to claim 4, characterized in that, A fifth pipe (27) is also provided through the second pipe (24), and a safety valve (8) is provided on the fifth pipe (27). The second pipe (24) and the fuel tank (5) are detachably connected through a first sealing connector (7). A second sealing connector is also detachably connected to the first pipe (22).

6. A fuel cell power supply device based on a water electrolysis hydrogen production unit according to claim 5, characterized in that, A liquid level sensor (12) is provided on the fuel tank (5). A controller and an energy storage battery (30) are also provided on the inner wall of the outer shell (21). An operation panel (33) is provided on the outer wall of the outer shell (21). The controller is electrically connected to the liquid level sensor (12), the operation panel (33), the peristaltic pump (2), the solenoid valve (32), and the energy storage battery (30). The energy storage battery (30) can also be electrically connected to the fuel cell (11).

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