Electric energy hydrogen production and hydrogen energy power generation combined device
By designing a combined device for hydrogen production and hydrogen power generation, and integrating wind power, solar power supply and heat dissipation system, the problem of using water electrolysis hydrogen production device and hydrogen fuel cell separately was solved. This achieved efficient separation and utilization of hydrogen and oxygen, reduced power consumption and improved energy utilization efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-06
- Publication Date
- 2026-04-10
AI Technical Summary
Existing water electrolysis hydrogen production devices and hydrogen fuel cells are usually used separately and cannot be effectively combined. Furthermore, water electrolysis hydrogen production consumes a large amount of electricity and is costly.
A combined device for hydrogen production and hydrogen power generation was designed, integrating wind power generation, solar power supply, battery energy storage and heat dissipation system. It produces hydrogen through electrolyte and separates oxygen using proton exchange membrane fuel cell, achieving efficient utilization of hydrogen and oxygen.
It achieves efficient separation and utilization of hydrogen and oxygen, reduces power consumption, improves energy utilization efficiency, and extends the service life of energy storage batteries.
Smart Images
Figure CN121839949A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of hydrogen production by electric energy and hydrogen energy power generation, in particular to a combined device for hydrogen production by electric energy and hydrogen energy power generation. BACKGROUND
[0002] Hydrogen has high volatility and high energy, and is an energy carrier and fuel. Hydrogen is widely used in industrial production, and is also applied to gasoline refining processes, glass polishing, gold welding, weather balloon detection, and food industries. Liquid hydrogen can be used as rocket fuel. In particular, in the face of the current oil crisis, people are constantly increasing the development of oil and natural gas, vigorously developing solar and wind energy, and constantly increasing the development and utilization of green renewable resources. Even so, from the current situation, there is no and it is impossible to have a greater effect on solving the oil crisis, because the reserves of oil and natural gas are limited, wind and solar energy are affected by the climate, and green renewable resources are limited by land and time. They are semi-weather resources, and only hydrogen energy is a full-weather resource. Therefore, the current development of hydrogen energy has an unparalleled huge advantage and unlimited broad prospects.
[0003] With the rapid development of social science and technology, the power supply device for hydrogen energy power generation is now widely used. As long as hydrogen is supplied to the hydrogen fuel cell, the hydrogen fuel cell will generate electricity. However, the water electrolysis hydrogen production device and the hydrogen fuel cell are not combined for use. Hydrogen is a high-density energy source. Generally, a large amount of energy is consumed to produce hydrogen. Currently, 97% of hydrogen in China is produced from fossil fuels, and the rest is produced by water electrolysis, solar hydrogen production, and biological hydrogen production. However, the production of hydrogen from fossil fuels emits a large amount of greenhouse gases into the atmosphere, which is harmful to the environment. Although water electrolysis does not produce greenhouse gases, it consumes a large amount of electricity and has a high production cost. In summary, the existing hydrogen production by electric energy still has the following problems:
[0004] 1. The water electrolysis hydrogen production device and the hydrogen fuel cell are often used separately without good combination; 2. Although water electrolysis does not produce greenhouse gases, it consumes a large amount of electricity and has a high production cost. Therefore, we propose a combined device for hydrogen production by electric energy and hydrogen energy power generation. SUMMARY
[0005] The main purpose of the present application is to provide a combined device for hydrogen production by electric energy and hydrogen energy power generation, which can effectively solve the problems in the background art.
[0006] To achieve the above purpose, the technical scheme adopted by the present application is as follows:
[0007] The utility model provides a combined device of hydrogen production by electric energy and hydrogen energy power generation, including base, the left part and right part of lower extreme of base are equipped with two movable wheels, the right part two movable wheels between the installation has drive arrangement, the left part of upper end of base is equipped with wind power generation device and battery box respectively, the left part of upper end of battery box is equipped with solar power supply device, the middle part of front end of battery box is equipped with heat abstractor, the right end of battery box is equipped with box board, the upper end of middle part of base is equipped with hydrogen production by electric energy device, the right part of upper end of base is equipped with separate hydrogen extraction device, the right end of upper part of hydrogen production by electric energy device and the upper part of front end of separate hydrogen extraction device are equipped with a connecting pipeline.
[0008] Preferably, the hydrogen production by electric energy device includes a hydrogen production box, a box cover is installed on the left upper end of the hydrogen production box, a connecting groove is opened on the right upper end of the hydrogen production box, two electrodes are installed on the left inner wall of the hydrogen production box, wires are installed on the upper ends of the two electrodes, the ends of the two wires away from the electrodes are connected with the battery box, a first interface and a second interface are installed on the left front end of the battery box, energy storage batteries are installed inside the battery box, and the hydrogen production box is installed on the upper middle part of the base. Open the box cover, pour the appropriate amount of alkaline electrolyte or pure water into the hydrogen production box, then pass electricity to the two electrodes on the hydrogen production box through the battery box, the water molecules undergo electrochemical reaction on the electrodes, and then decompose into hydrogen and oxygen in the hydrogen production box.
[0009] Preferably, the separate hydrogen extraction device includes a separation kettle and a proton exchange membrane fuel cell, a liquid nitrogen inlet pipe is installed on the upper right end of the separation kettle, a discharge port is installed on the lower liquid nitrogen part of the separation kettle, a second connecting pipeline is installed between the separation kettle and the proton exchange membrane fuel cell, a control valve is installed on the outer surface of the first connecting pipeline, the proton exchange membrane fuel cell is installed on the front upper end of the base, and the separation kettle is installed on the rear upper end of the base. Pour liquid nitrogen into the separation kettle through the liquid nitrogen inlet pipe, since the boiling point of hydrogen is -252°C, the boiling point of oxygen is -183°C, and the boiling point of nitrogen is -195°C, cooling the gas with liquid nitrogen will obtain liquid oxygen, thereby separating oxygen to obtain hydrogen, and finally the hydrogen enters the proton exchange membrane fuel cell through the second connecting pipeline, thereby enabling the electrolytic water hydrogen production and the hydrogen fuel cell to be combined for use.
[0010] Preferably, the wind power generation device includes a cabin, a support cylinder is installed on the lower end of the cabin, a connecting line is installed on the lower front end of the support cylinder, a generator is installed inside the cabin, a mounting cover is installed on the right end of the cabin, a hub is installed on the left end of the cabin, blades are installed on the outer surface of the hub, and the cabin is installed on the left upper end of the base through the support cylinder. The wind will drive the blades on the wind power generation device to rotate, which in turn will drive the generator to generate electricity, at which time the electricity will enter the energy storage batteries in the battery box through the connecting line.
[0011] Preferably, the driving device comprises a motor, a first gear wheel is installed at the front end of the motor, a second gear wheel is engagedly connected to the left end of the first gear wheel, a driving shaft is installed at the front end of the second gear wheel, the driving shaft is installed between the two movable wheels at the right part, a connecting seat is installed at the upper end of the motor, and the motor is installed at the right part of the lower end of the base through the connecting seat.
[0012] Preferably, the heat dissipation device comprises a support frame, two fans are installed at the front end of the support frame, a filter screen is installed at the middle of the front end of the battery box, and the support frame is installed at the middle of the front end of the battery box.
[0013] Preferably, the solar power supply device comprises a mounting frame, mounting frames are installed at the front end and the rear end of the mounting frame, a solar panel is installed at the upper end of the mounting frame, and the mounting frame is installed at the left part of the upper end of the battery box.
[0014] Preferably, the electrode is electrically connected to the battery box through a wire.
[0015] Preferably, the fan and the filter screen are in front and back correspondence, and there is a gap between the fan and the filter screen.
[0016] Compared with the prior art, the present application has the following beneficial effects:
[0017] 1、First open the box cover of the electric energy hydrogen production device, pour the appropriate amount of alkaline electrolyte or pure water into the hydrogen production tank, then pass electricity to the two electrodes on the hydrogen production tank through the battery tank, the water molecules on the electrode undergo electrochemical reaction, and then decompose into hydrogen and oxygen in the hydrogen production tank, at this time the hydrogen and oxygen enter the separation tank of the separation hydrogen extraction device through the No. 1 connecting pipeline, then pour liquid nitrogen into the separation tank through the liquid nitrogen inlet pipe, because the boiling point of hydrogen is-252℃, the boiling point of oxygen is-183℃, and the boiling point of nitrogen is-195℃, so cooling the gas with liquid nitrogen will get liquid oxygen, so as to separate the oxygen to obtain hydrogen, and the liquid oxygen is discharged through the discharge port, which is convenient for the use of liquid oxygen, finally the hydrogen enters the proton exchange membrane fuel cell through the No. 2 connecting pipeline, which is a kind of fuel cell, and its principle is equivalent to the "reverse" device of water electrolysis, the single cell is composed of anode, cathode and proton exchange membrane, the anode is the place where hydrogen fuel is oxidized, the cathode is the place where the oxidant is reduced, both poles contain catalysts to accelerate the electrochemical reaction of the electrode, and the proton exchange membrane acts as an electrolyte, so that the electrolytic water hydrogen production and hydrogen fuel cell can be combined for use.
[0018] 2、When the wind blows, the wind will drive the blades on the wind power generation device to rotate, and the blades will drive the generator to generate electricity when rotating, at this time the electricity will enter the energy storage battery in the battery tank through the connecting line, at the same time when the sunlight shines, the solar panel on the solar power supply device converts the solar energy into electric energy and stores it in the energy storage battery, so as to provide a certain amount of electricity for electrolytic water hydrogen production, reduce the consumption of electric energy and improve the utilization efficiency of energy.
[0019] 3、When the energy storage battery is charged for a long time through the No. 2 interface or the battery tank is irradiated by sunlight for a long time, the two fans on the heat dissipation device rotate and blow, the wind enters the battery tank through the filter screen, and then the energy storage battery is cooled, so as to prolong its service life, and the motor on the driving device drives the No. 1 gear, the No. 1 gear drives the No. 2 gear and the driving shaft, at this time the movable wheels on both sides of the driving shaft push the device, so as to move the device and charge the energy storage battery better. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the overall structure diagram of the electric energy hydrogen production and hydrogen energy power generation combined device of the application;
[0021] Figure 2 It is the structure schematic diagram of the electric energy hydrogen production device of the electric energy hydrogen production and hydrogen energy power generation combined device of the application;
[0022] Figure 3 It is the structure schematic diagram of the separation hydrogen extraction device of the electric energy hydrogen production and hydrogen energy power generation combined device of the application;
[0023] Figure 4 Structure diagram of wind power generation device of the combined device for electric energy hydrogen production and hydrogen energy power generation of the application;
[0024] Figure 5 Structure diagram of driving device of the combined device for electric energy hydrogen production and hydrogen energy power generation of the application;
[0025] Figure 6 Structure diagram of heat dissipation device of the combined device for electric energy hydrogen production and hydrogen energy power generation of the application;
[0026] Figure 7 Structure diagram of solar power supply device of the combined device for electric energy hydrogen production and hydrogen energy power generation of the application.
[0027] In the figure: 1, base; 2, electric energy hydrogen production device; 3, hydrogen separation and extraction device; 4, wind power generation device; 5, driving device; 6, heat dissipation device; 7, solar power supply device; 8, battery box; 9, box plate; 10, movable wheel; 11, No. 1 connecting pipeline; 20, hydrogen production box; 21, box cover; 22, electrode; 23, wire; 24, No. 1 interface; 25, No. 2 interface; 26, connecting groove; 27, energy storage battery; 30, separation kettle body; 31, proton exchange membrane fuel cell; 32, control valve; 33, No. 2 connecting pipeline; 34, liquid nitrogen inlet pipe; 35, discharge port; 40, engine room; 41, hub; 42, blade; 43, generator; 44, mounting cover; 45, support cylinder; 46, connecting wire; 50, motor; 51, driving shaft; 52, No. 1 gear; 53, No. 2 gear; 54, connecting seat; 60, support frame; 61, fan; 62, filter screen; 70, mounting frame; 71, solar panel; 72, mounting frame. DETAILED DESCRIPTION
[0028] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application will be further described below in combination with specific embodiments.
[0029] In the description of the application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0031] like Figures 1-7 As shown, the combined device for hydrogen production by electricity and hydrogen power generation includes a base 1. Two movable wheels 10 are installed on the lower left and lower right sides of the base 1. A drive device 5 is installed between the two movable wheels 10 on the right side. A wind power generation device 4 and a battery box 8 are installed on the upper left side of the base 1. A solar power supply device 7 is installed on the upper left side of the battery box 8. A heat dissipation device 6 is installed in the middle of the front end of the battery box 8. A box plate 9 is installed on the right end of the battery box 8. An electric hydrogen production device 2 is installed in the middle of the upper end of the base 1. A hydrogen separation and extraction device 3 is installed on the upper right side of the base 1. A No. 1 connecting pipe 11 is installed on the upper right side of the electric hydrogen production device 2 and the upper front end of the hydrogen separation and extraction device 3.
[0032] The electro-hydrogen generation device 2 includes a hydrogen generation tank 20. A cover 21 is installed on the upper left side of the tank 20. A connection groove 26 is opened on the upper right side of the tank 20. Two electrodes 22 are installed on the inner left wall of the tank 20. Wires 23 are installed on the upper ends of both electrodes 22. The ends of the wires 23 furthest from the electrodes 22 are connected to a battery housing 8. A first interface 24 and a second interface 25 are respectively installed on the front left side of the battery housing 8. A storage battery 27 is installed inside the battery housing 8. The hydrogen generation tank 20 is installed in the middle of the upper part of the base 1. The electrodes 22 are electrically connected to the battery housing 8 via the wires 23. When the cover 21 is opened, an appropriate amount of alkaline electrolyte or pure water is poured into the hydrogen generation tank 20. Then, electricity is passed through the battery housing 8 to the two electrodes 22 on the hydrogen generation tank 20. Water molecules undergo an electrochemical reaction on the electrodes 22, thus decomposing into hydrogen and oxygen within the hydrogen generation tank 20.
[0033] The hydrogen separation and extraction device 3 includes a separation vessel 30 and a proton exchange membrane fuel cell 31. A liquid nitrogen inlet pipe 34 is installed on the upper right end of the separation vessel 30, and an outlet 35 is installed at the lower part of the liquid nitrogen inlet 30. A second connecting pipe 33 is installed between the separation vessel 30 and the proton exchange membrane fuel cell 31. A control valve 32 is installed on the outer surface of the first connecting pipe 11. The proton exchange membrane fuel cell 31 is installed at the front upper end of the base 1, and the separation vessel 30 is installed at the rear upper end of the base 1. Liquid nitrogen is poured into the separation vessel 30 through the liquid nitrogen inlet pipe 34. Since the boiling point of hydrogen is -252℃, the boiling point of oxygen is -183℃, and the boiling point of nitrogen is -195℃, cooling the gas with liquid nitrogen will produce liquid oxygen, thereby separating the oxygen to obtain hydrogen. Finally, the hydrogen enters the proton exchange membrane fuel cell 31 through the second connecting pipe 33, thus enabling the combined use of water electrolysis for hydrogen production and the hydrogen fuel cell.
[0034] The wind power generation device 4 includes a nacelle 40, a support cylinder 45 mounted on the lower end of the nacelle 40, a connecting line 46 mounted on the lower front end of the support cylinder 45, a generator 43 installed inside the nacelle 40, a mounting cover 44 mounted on the right end of the nacelle 40, and a hub 41 mounted on the left end of the nacelle 40. Blades 42 are mounted on the outer surface of the hub 41. The nacelle 40 is mounted on the upper left side of the base 1 via the support cylinder 45. Wind will drive the blades 42 on the wind power generation device 4 to rotate, and the rotation of the blades 42 will drive the generator 43 to generate electricity. At this time, the electricity will enter the energy storage battery 27 in the battery box 8 through the connecting line 46.
[0035] The drive unit 5 includes a motor 50. A first gear 52 is mounted on the front end of the motor 50. A second gear 53 is meshed with the left end of the first gear 52. A drive shaft 51 is mounted on the front end of the second gear 53. The drive shaft 51 is installed between two movable wheels 10 on the right side. A connecting seat 54 is mounted on the upper end of the motor 50, and the motor 50 is mounted on the lower right side of the base 1 through the connecting seat 54. The motor 50 drives the first gear 52, which in turn drives the second gear 53 and the drive shaft 51. At this time, the movable wheels 10 on both sides of the drive shaft 51 push the device, thereby facilitating the movement of the device to better charge the energy storage battery 27.
[0036] The heat dissipation device 6 includes a support frame 60, with two fans 61 mounted on the front end of the support frame 60. A filter 62 is mounted on the middle of the front end of the battery housing 8. The support frame 60 is mounted on the middle of the front end of the battery housing 8. The fans 61 and the filter 62 are positioned correspondingly, with a gap between them. By rotating the two fans 61 on the heat dissipation device 6, air is blown through the filter 62 and into the battery housing 8, thereby dissipating heat from the energy storage battery 27 and improving its service life.
[0037] The solar power supply device 7 includes a mounting frame 70, with mounting brackets 72 installed at both the front and rear ends of the mounting frame 70. A solar panel 71 is installed on the upper end of the mounting frame 70, which is mounted on the upper left side of the battery box 8. When sunlight shines, the solar panel 71 on the solar power supply device 7 converts solar energy into electrical energy and stores it in the energy storage battery 27, thereby providing a certain amount of electricity for the electrolysis of water to produce hydrogen.
[0038] It should be noted that this invention is a combined device for producing hydrogen from electricity and generating hydrogen from hydrogen. Firstly, the motor 50 on the drive unit 5 drives the first gear 52, which in turn drives the second gear 53 and the drive shaft 51. The movable wheels 10 on both sides of the drive shaft 51 then propel the device, facilitating its movement and better charging of the energy storage battery 27. When wind blows, it drives the blades 42 on the wind turbine 4 to rotate, which in turn drives the generator 43 to generate electricity. The energy will enter the energy storage battery 27 inside the battery box 8 through the connecting cable 46. Simultaneously, when exposed to sunlight, the solar panels 71 on the solar power supply device 7 convert solar energy into electrical energy and store it in the energy storage battery 27, thereby providing a certain amount of electricity for hydrogen production through water electrolysis, reducing energy consumption and improving energy utilization efficiency. Furthermore, when the energy storage battery 27 is charged for an extended period through the second interface 25, or when the battery box 8 is exposed to sunlight for a long time, the two fans 61 on the heat dissipation device 6 rotate to blow air through the battery. The energy storage battery 27 is cooled by passing through filter 62 into battery housing 8, thus improving its lifespan. When hydrogen production via water electrolysis is required, the cover 21 on the electric hydrogen production device 2 is first opened, and an appropriate amount of alkaline electrolyte or pure water is poured into the hydrogen production tank 20. Then, electricity is supplied to the two electrodes 22 on the hydrogen production tank 20 through battery housing 8. Water molecules undergo an electrochemical reaction at the electrodes 22, decomposing into hydrogen and oxygen within the hydrogen production tank 20. At this time, the hydrogen and oxygen enter the hydrogen separation and extraction device 3 through the first connecting pipe 11. The separation vessel 30 is then filled with liquid nitrogen through the liquid nitrogen inlet pipe 34. Since the boiling point of hydrogen is -252℃, the boiling point of oxygen is -183℃, and the boiling point of nitrogen is -195℃, cooling the gas with liquid nitrogen will produce liquid oxygen, which will then be separated to obtain hydrogen. The liquid oxygen will be discharged through the outlet 35 for easy utilization. Finally, the hydrogen enters the proton exchange membrane fuel cell 31 through the second connecting pipe 33, thus enabling the combination of water electrolysis to produce hydrogen and the hydrogen fuel cell for use.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A combined device for producing hydrogen from electricity and generating hydrogen from hydrogen, comprising a base (1), characterized in that: Two movable wheels (10) are installed on the lower left and lower right sides of the base (1). A drive device (5) is installed between the two movable wheels (10) on the right side. A wind power generation device (4) and a battery box (8) are installed on the upper left side of the base (1). A solar power supply device (7) is installed on the upper left side of the battery box (8). A heat dissipation device (6) is installed in the middle of the front end of the battery box (8). A box plate (9) is installed on the right end of the battery box (8). An electric hydrogen production device (2) is installed in the middle of the upper end of the base (1). A hydrogen separation and extraction device (3) is installed on the upper right side of the base (1). A No. 1 connecting pipe (11) is installed on the upper right side of the electric hydrogen production device (2) and the upper front end of the hydrogen separation and extraction device (3).
2. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 1, characterized in that: The electric hydrogen production device (2) includes a hydrogen production tank (20), a tank cover (21) is installed on the upper left side of the hydrogen production tank (20), a connecting groove (26) is opened on the upper right side of the hydrogen production tank (20), two electrodes (22) are installed on the left inner wall of the hydrogen production tank (20), wires (23) are installed on the upper end of the two electrodes (22), and the ends of the two wires (23) away from the electrodes (22) are connected to the battery box (8). The front left side of the battery box (8) is equipped with a first interface (24) and a second interface (25), respectively. An energy storage battery (27) is installed inside the battery box (8), and the hydrogen production tank (20) is installed in the middle of the upper end of the base (1).
3. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 1, characterized in that: The hydrogen separation and extraction device (3) includes a separation vessel (30) and a proton exchange membrane fuel cell (31). A liquid nitrogen inlet pipe (34) is installed on the upper right end of the separation vessel (30). A discharge port (35) is installed on the lower part of the liquid nitrogen in the separation vessel (30). A second connecting pipe (33) is installed between the separation vessel (30) and the proton exchange membrane fuel cell (31). A control valve (32) is installed on the outer surface of the first connecting pipe (11). The proton exchange membrane fuel cell (31) is installed on the front upper end of the base (1), and the separation vessel (30) is installed on the rear upper end of the base (1).
4. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 1, characterized in that: The wind power generation device (4) includes a nacelle (40), a support cylinder (45) is installed at the lower end of the nacelle (40), a connecting line (46) is installed at the lower front end of the support cylinder (45), a generator (43) is installed inside the nacelle (40), an installation cover (44) is installed at the right end of the nacelle (40), a hub (41) is installed at the left end of the nacelle (40), blades (42) are installed on the outer surface of the hub (41), and the nacelle (40) is installed on the upper left part of the base (1) through the support cylinder (45).
5. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 1, characterized in that: The drive device (5) includes a motor (50), a first gear (52) is installed at the front end of the motor (50), a second gear (53) is meshed at the left end of the first gear (52), a drive shaft (51) is installed at the front end of the second gear (53), the drive shaft (51) is installed between two movable wheels (10) on the right side, a connecting seat (54) is installed at the upper end of the motor (50), and the motor (50) is installed at the lower right side of the base (1) through the connecting seat (54).
6. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 1, characterized in that: The heat dissipation device (6) includes a support frame (60), two fans (61) are installed at the front end of the support frame (60), a filter screen (62) is installed at the middle of the front end of the battery box (8), and the support frame (60) is installed at the middle of the front end of the battery box (8).
7. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 1, characterized in that: The solar power supply device (7) includes a mounting frame (70), with mounting brackets (72) installed at both the front and rear ends of the mounting frame (70), and a solar panel (71) installed at the upper end of the mounting frame (70). The mounting frame (70) is installed on the upper left side of the battery box (8).
8. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 2, characterized in that: The electrode (22) is electrically connected to the battery box (8) via a wire (23).
9. The combined device for hydrogen production from electricity and hydrogen power generation according to claim 6, characterized in that: The fan (61) and the filter (62) are positioned in a front-to-back correspondence, and there is a gap between the fan (61) and the filter (62).