Photoelectric hydrogen production device

Abstract

The invention discloses a photoelectric hydrogen production device which comprises a photovoltaic module, an electrolysis tank and a hydrogen storage tank, the photovoltaic module comprises a photovoltaic panel, the photovoltaic panel is used for supplying power to the electrolysis tank, the hydrogen storage tank is used for storing hydrogen prepared by the electrolysis tank, and a hydrogen discharge valve is arranged on the hydrogen storage tank; the photovoltaic assembly further comprises a support, a pneumatic device, a switching device and an air compressor, the photovoltaic panel is rotationally connected to the support, the pneumatic device is installed on the support and used for driving the photovoltaic panel to rotate, the air compressor is connected with the pneumatic device and the hydrogen storage pipe through a first air pipe and a second air pipe, and the switching device is located among the air compressor, the first air pipe and the second air pipe. And the air compressor is connected with the pneumatic device or the hydrogen storage tank. According to the photoelectric hydrogen production device, the angle of the photovoltaic panel can be adjusted, and hydrogen in the hydrogen storage tank can be rapidly emptied.

Description

Technical Field

[0001] The present invention relates to the technical field of photoelectric hydrogen production, and in particular to a photoelectric hydrogen production device. Background Art

[0002] Photovoltaic power generation uses the photoelectric effect to convert solar energy into electrical energy, which has the advantage of being pollution-free and can improve the city's power supply capacity. Using electricity to produce hydrogen can store excess electricity and release hydrogen energy through hydrogen fuel cells during peak electricity consumption to supply power to the city.

[0003] Existing photoelectric hydrogen production devices, such as the patent with application number CN2021207035967, include photovoltaic panels, electrolytic tanks, and hydrogen storage tanks. When producing hydrogen, the photovoltaic panels use solar energy to generate electricity, the electrolytic tank uses electricity to electrolyze the water inside to produce hydrogen, and the hydrogen storage tank stores the generated hydrogen for subsequent use.

[0004] Existing photovoltaic hydrogen production devices have the following disadvantages: first, the photovoltaic panels cannot adjust their angles to adapt to the solar altitude angles in different seasons; second, the photovoltaic hydrogen production devices cannot quickly empty the hydrogen in the hydrogen storage tanks during temporary operation or maintenance, posing a major safety hazard. Summary of the invention

[0005] In order to solve the above-mentioned defects of the existing photoelectric hydrogen production device, the present invention proposes a photoelectric hydrogen production device, which can adjust the angle of the photovoltaic panel and quickly empty the hydrogen in the hydrogen storage tank.

[0006] To achieve the above object, the present invention adopts the following technical solution: A photoelectric hydrogen production device comprises a photovoltaic assembly, an electrolytic tank and a hydrogen storage tank. The photovoltaic assembly comprises a photovoltaic panel, which is used to supply power to the electrolytic tank. The hydrogen storage tank is used to store hydrogen prepared by the electrolytic tank. The hydrogen storage tank is provided with a hydrogen discharge valve. The photovoltaic assembly also comprises a bracket, a pneumatic device, a switching device and an air compressor. The photovoltaic panel is rotatably connected to the bracket. The pneumatic device is installed on the bracket and is used to drive the photovoltaic panel to rotate. The air compressor is respectively connected to the pneumatic device and the hydrogen storage pipe through a first air pipe and a second air pipe. The switching device is located between the air compressor, the first air pipe and the second air pipe so that the air compressor is connected to the pneumatic device or to the hydrogen storage tank.

[0007] Through the above arrangement, first, when the switching device connects the air compressor to the pneumatic device, the angle of the photovoltaic panel can be adjusted through the pneumatic device to adapt to the solar altitude angle in different seasons; second, compared with the electric drive to rotate the photovoltaic panel, the pneumatic drive to rotate the photovoltaic panel can avoid hydrogen explosion and improve the safety of hydrogen production; third, when the switching device connects the air compressor to the hydrogen storage tank, the air compressor can blow air into the hydrogen storage tank to quickly empty the hydrogen in the hydrogen storage tank.

[0008] Furthermore, the switching device includes a shell, an air inlet is provided at the end of the shell, and two air outlets are circumferentially provided on the side of the shell, the air inlet is connected to the air compressor, and the two air outlets are respectively connected to the pneumatic device and the hydrogen storage tank through the first air pipe and the second air pipe. The switching device also includes an inner core with an air duct inside, the air inlet is connected to one of the air outlets through the air duct, the outer wall of the inner core closes the other air outlet, and the inner core is rotated, so that the air inlet is connected to the other air outlet through the air duct.

[0009] Through the above arrangement, the inner core is rotated to adjust the output direction of the switching device.

[0010] Furthermore, the switching device also includes a rotating shaft and a hand wheel. A rotating groove is provided at one end of the shell away from the air inlet. The rotating shaft passes through the rotating groove and is fixedly connected to the inner core. The hand wheel is fixedly connected to the outer end of the rotating shaft.

[0011] Through the above arrangement, it is convenient to rotate the inner core by hand.

[0012] Furthermore, the switching device also includes a mounting frame, which includes a base plate, a support column and a connecting sleeve. The base can be locked on the ground, and the connecting sleeve is fixedly connected to the top of the base plate through the support column, and the connecting sleeve hugs the shell.

[0013] Through the above arrangement, it is convenient to fix the switching device on the ground.

[0014] Furthermore, the bracket includes a support shaft and multiple columns, the lower ends of the multiple columns are fixed on the ground, the support shaft horizontally passes through the upper ends of the columns and is rotatably connected to the columns, and the photovoltaic panel is installed on the upper side of the support shaft.

[0015] Through the above settings, the photovoltaic panel has better stability.

[0016] Furthermore, the bracket is provided with two columns, which are arranged at both ends of the support shaft.

[0017] Furthermore, the pneumatic device includes a worm gear, a worm and an air motor. The worm gear is coaxially fixedly connected to the support shaft, the worm gear is rotatably connected to one side of the column and cooperates with the worm gear. The air motor is installed on the column and is connected to the worm gear transmission. The air compressor can be connected to the air motor through a switching device.

[0018] Through the above arrangement, the pneumatic motor drives the photovoltaic panel to rotate through the worm gear and the worm gear. The worm gear and the worm gear also have a self-locking feature, and can maintain the angle of the photovoltaic panel unchanged when there is no need to adjust the angle of the photovoltaic panel.

[0019] Furthermore, the hydrogen production device also includes a battery, the photovoltaic panel is electrically connected to the battery, and the battery is electrically connected to the air compressor.

[0020] Through the above arrangement, the circuit wiring of the hydrogen production device of the present application can be simplified, and the installation and construction can be facilitated.

[0021] Furthermore, the distance from the air compressor to the hydrogen storage tank, and the distance from the battery to the hydrogen storage tank are both greater than 20 meters.

[0022] Through the above settings, the safety of hydrogen production is further improved.

[0023] Furthermore, the hydrogen discharge valve is arranged at the upper end of the hydrogen storage tank and is a manual valve.

[0024] Through the above arrangement, the density of hydrogen is small, and setting the hydrogen discharge valve at the upper end of the hydrogen storage tank can further improve the hydrogen discharge efficiency. At the same time, it can also effectively keep the discharged hydrogen away from the ground, thereby improving the safety of hydrogen discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of a hydrogen production device according to an embodiment.

[0026] Figure 2 is a schematic diagram of a photovoltaic module according to an embodiment.

[0027] Figure 3 Schematic diagram of a switching device according to an embodiment.

[0028] Figure 4 2 is a cross-sectional view of a switching device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0030] like Figures 1 to 4 As shown, a photoelectric hydrogen production device includes a photovoltaic module, an electrolytic tank (not shown in the figure) and a hydrogen storage tank 2, the photovoltaic module includes a photovoltaic panel 3, the photovoltaic panel 3 is used to supply power to the electrolytic tank, the hydrogen storage tank 2 is used to store hydrogen prepared by the electrolytic tank, and the hydrogen storage tank 2 is provided with a hydrogen discharge valve 4; the photovoltaic module also includes a bracket 5, a pneumatic device 6, a switching device 7 and an air compressor 8, the photovoltaic panel 3 is rotatably connected to the bracket 5, the pneumatic device 6 is installed on the bracket 5, and is used to drive the photovoltaic panel 3 to rotate, the air compressor is connected to the pneumatic device and the hydrogen storage pipe respectively through the first air pipe and the second air pipe, and the switching device is located between the air compressor, the first air pipe and the second air pipe, so that the air compressor is connected to the pneumatic device, or to the hydrogen storage tank.

[0031] Through the above arrangement, first, when the switching device connects the air compressor to the pneumatic device, the angle of the photovoltaic panel 3 can be adjusted by the pneumatic device to adapt to the solar altitude angle in different seasons; second, compared with the electric drive to rotate the photovoltaic panel, the pneumatic drive to rotate the photovoltaic panel 3 can avoid hydrogen explosion and improve the safety of hydrogen production; third, when the switching device connects the air compressor to the hydrogen storage tank, the air compressor 8 can blow air into the hydrogen storage tank 2 to quickly empty the hydrogen in the hydrogen storage tank 2.

[0032] The photovoltaic modules in the present application can be set to one or more, and adjusted according to the actual power generation needs; the photovoltaic panel 3 of the photovoltaic module uses solar energy to generate electricity according to the photoelectric effect, and the electrolysis tank uses electricity to electrolyze the alkaline water inside. The hydrogen produced by electrolysis enters the hydrogen storage tank 2 through a pipeline for storage; the lower end of the bracket 5 is fixed to the ground through a concrete foundation, the photovoltaic panel 3 is rotatably connected to the upper end of the bracket 5, the pneumatic device 6 is installed on the upper end of the bracket 5, and is connected to the switching device 7 through the first air pipe, and the lower end of the hydrogen storage tank 2 is connected to the switching device 7 through the second air pipe. The switching device 7 can switch the output direction of the air compressor 8. When the seasons change, the solar altitude angle changes, and the air compressor 8 outputs compressed air to the pneumatic device 6 through the switching device 7, and the pneumatic device 6 drives the photovoltaic panel 3 to rotate. The angle between the photovoltaic panel 3 and the horizontal plane increases or decreases to match the solar altitude angle; when the hydrogen production device is under maintenance or stops working, it is necessary to discharge the hydrogen in the hydrogen storage tank 2 to reduce safety hazards. The hydrogen discharge valve 4 on the hydrogen storage tank 2 is manually opened, and the air compressor 8 delivers compressed air to the hydrogen storage tank 2 through the switching device 7, and the compressed air squeezes out the hydrogen in the hydrogen storage tank 2; preferably, in order to prevent the high-pressure hydrogen in the hydrogen storage tank 2 from damaging the air compressor 8, a pressure sensor can be installed on the hydrogen storage tank 2 to detect the air pressure in the hydrogen storage tank 2. When discharging hydrogen, the hydrogen discharge valve 4 is opened first, and after the air pressure in the hydrogen storage tank 2 drops to a certain value, the switching device 7 is operated, the air compressor 8 is started, and compressed air is delivered to the hydrogen storage tank 2 through the switching device 7, and the compressed air empties the remaining hydrogen in the hydrogen storage tank 2.

[0033] As an implementation method, the switching device 7 includes a shell 71, an air inlet 711 is provided at the end of the shell 71, and two air outlets 712 are circumferentially provided on the side of the shell 71, the air inlet 711 is connected to the air compressor 8, and the two air outlets 712 are respectively connected to the pneumatic device 6 and the hydrogen storage tank 2 through the first air pipe and the second air pipe, and the switching device 7 also includes an inner core 72 with an air channel 721 inside, the air inlet 711 is connected to one of the air outlets 712 through the air channel 721, and the outer wall of the inner core 72 closes the other air outlet 712, and the inner core 72 is rotated, and the air inlet 711 is connected to the other air outlet 712 through the air channel 721.

[0034] Through the above arrangement, the inner core 72 is rotated to adjust the output direction of the switching device 7 .

[0035] In the present application, the shell 71 is basically a cylindrical hollow structure, the inner core 72 is a cylindrical structure adapted to the inner cavity of the shell 71, the inner core 72 and the shell 71 are coaxially arranged, and the inner core 72 can rotate around the axis; the outer surface of the inner core 72 fits the inner wall of the shell 71 to ensure the air tightness between the inner core 72 and the inner wall of the shell 71; in the initial state, the air inlet 711 is arranged at the center of one end of the shell 71, one end of the air duct 721 coincides with the air inlet 711, the other end of the air duct 721 coincides with one of the air outlets 712, and the other end of the air outlet 712 coincides with the air outlet 712. 12 is closed by the inner core 72, the air compressor is connected to the pneumatic device through the airway and the first air pipe, and the air path between the air compressor and the hydrogen storage tank is disconnected; when it is necessary to switch the output direction of the air compressor 8, the inner core 72 rotates around the axis, the air inlet 711 and one end of the airway 721 always coincide with each other, the other end of the airway 721 rotates to another air outlet 712, and is connected to the other air outlet 712, while the initial air outlet 712 is blocked by the inner core 72, the air compressor is connected to the hydrogen storage tank through the airway and the second air pipe, and the air path between the air compressor and the pneumatic device is disconnected.

[0036] As an implementation method, the switching device 7 also includes a rotating shaft 73 and a hand wheel 74. A rotating groove is provided at one end of the shell 71 away from the air inlet 711. The rotating shaft 73 passes through the rotating groove and is fixedly connected to the inner core 72. The hand wheel 74 is fixedly connected to the outer end of the rotating shaft 73.

[0037] Through the above arrangement, it is convenient to rotate the inner core 72 by hand.

[0038] In the present application, the inner core 72 is manually rotated to make hydrogen production safer; the rotating shaft 73 is coaxially fixedly connected to the end of the inner core 72 through a rotating groove. In order to increase the airtightness between the shell 71 and the rotating shaft 73, a sealing ring can be installed between the shell 71 and the rotating shaft 73; the hand wheel 74 facilitates the manual rotation of the inner core 72 through the rotating shaft 73.

[0039] As an implementation method, the switching device 7 also includes a mounting frame, which includes a base plate 75, a support column 76 and a connecting sleeve 77. The base can be locked on the ground, and the connecting sleeve 77 is fixedly connected above the base plate 75 through the support column 76. The connecting sleeve 77 holds the shell 71 tightly.

[0040] Through the above arrangement, it is convenient to fix the switching device 7 on the ground.

[0041] As an implementation method, the bracket 5 includes a support shaft 51 and multiple columns 52. The lower ends of the multiple columns 52 are fixed on the ground. The support shaft 51 horizontally passes through the upper ends of the columns 52 and is rotatably connected to the columns 52. The photovoltaic panel 3 is installed on the upper side of the support shaft 51.

[0042] Through the above arrangement, the photovoltaic panel 3 has better stability.

[0043] In the present application, the column 52 can be made of square steel pipe, which has a lighter weight while ensuring structural strength, which is beneficial to saving construction costs; the lower end of the column 52 is fixed to the ground through a concrete foundation, and has good stability; the support shaft 51 passes through the upper end of the column 52 and is rotatably connected to the column 52, so that the photovoltaic panel 3 can stably rotate around the axis of the support shaft 51.

[0044] As an implementation method, the bracket 5 is provided with two upright posts 52 , which are arranged at both ends of the support shaft 51 .

[0045] As an implementation method, the pneumatic device 6 includes a worm gear 61, a worm 62 and an air motor 63. The worm gear 61 is coaxially fixedly connected to the support shaft 51, the worm 62 is rotatably connected to one side of the column 52 and cooperates with the worm gear 61. The air motor 63 is installed on the column 52 and is transmission-connected to the worm 62. The air compressor 8 can be connected to the air motor 63 via the switching device 7.

[0046] Through the above arrangement, the pneumatic motor 63 drives the photovoltaic panel 3 to rotate through the worm gear 61 and the worm 62. The worm gear 61 and the worm 62 also have a self-locking property, and can maintain the angle of the photovoltaic panel 3 unchanged when there is no need to adjust the angle of the photovoltaic panel 3.

[0047] As an implementation method, the hydrogen production device also includes a battery (not shown in the figure), the photovoltaic panel 3 is electrically connected to the battery, and the battery is electrically connected to the air compressor 8.

[0048] Through the above arrangement, the circuit wiring of the hydrogen production device of the present application can be simplified, and the installation and construction can be facilitated.

[0049] When the photovoltaic panel 3 generates electricity, it can also charge the battery, and the battery can power the air compressor 8, so that the air compressor 8 does not need to draw electricity from the power grid, reducing the cabling at the location of the hydrogen production device, thereby improving the safety of hydrogen production and simplifying the construction.

[0050] As an implementation method, the distance from the air compressor 8 to the hydrogen storage tank 2, and the distance from the battery to the hydrogen storage tank 2 are both greater than 20 meters.

[0051] Through the above settings, the safety of hydrogen production is further improved.

[0052] In the present application, when the hydrogen storage tank 2 discharges hydrogen, hydrogen is discharged into the atmosphere, and the battery and the air compressor 8 may be charged. Increasing the distance between the air compressor 8 and the battery can effectively prevent hydrogen from coming into contact with electricity and exploding.

[0053] As an implementation method, the hydrogen discharge valve 4 is arranged at the upper end of the hydrogen storage tank 2 and is a manual valve.

[0054] Through the above arrangement, the density of hydrogen is small, and the hydrogen discharge valve 4 is arranged at the upper end of the hydrogen storage tank 2 to further improve the hydrogen discharge efficiency. At the same time, the discharged hydrogen can be effectively kept away from the ground, thereby improving the safety of hydrogen discharge.

[0055] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A photoelectric hydrogen production device, characterized in that: It includes a photovoltaic assembly, an electrolytic tank and a hydrogen storage tank, the photovoltaic assembly includes a photovoltaic panel, the photovoltaic panel is used to supply power to the electrolytic tank, the hydrogen storage tank is used to store the hydrogen prepared by the electrolytic tank, and the hydrogen storage tank is provided with a hydrogen discharge valve; the photovoltaic assembly also includes a bracket, a pneumatic device, a switching device and an air compressor, the photovoltaic panel is rotatably connected to the bracket, the pneumatic device is installed on the bracket and is used to drive the photovoltaic panel to rotate, the air compressor is connected to the pneumatic device and the hydrogen storage pipe respectively through a first air pipe and a second air pipe, and the switching device is located between the air compressor, the first air pipe and the second air pipe, so that the air compressor is connected to the pneumatic device or to the hydrogen storage tank.

2. A photoelectric hydrogen production device according to claim 1, characterized in that: The switching device includes a shell, an air inlet is provided at the end of the shell, and two air outlets are circumferentially provided on the side of the shell, the air inlet is connected to the air compressor, and the two air outlets are respectively connected to the pneumatic device and the hydrogen storage tank through the first air pipe and the second air pipe, and the switching device also includes an inner core with an air channel provided inside, the air inlet is connected to one of the air outlets through the air channel, the outer wall of the inner core closes the other air outlet, and the inner core is rotated, so that the air inlet is connected to the other air outlet through the air channel.

3. A photoelectric hydrogen production device according to claim 2, characterized in that: The switching device also includes a rotating shaft and a hand wheel. A rotating groove is provided at one end of the shell away from the air inlet. The rotating shaft passes through the rotating groove and is fixedly connected to the inner core. The hand wheel is fixedly connected to the outer end of the rotating shaft.

4. A photoelectric hydrogen production device according to claim 2, characterized in that: The switching device also includes a mounting frame, which includes a base plate, a support column and a connecting sleeve. The base can be locked on the ground, and the connecting sleeve is fixedly connected above the base plate through the support column, and the connecting sleeve hugs the shell.

5. The photovoltaic hydrogen production device according to claim 1, characterized in that: The bracket includes a support shaft and multiple columns, the lower ends of the multiple columns are fixed on the ground, the support shaft horizontally passes through the upper ends of the columns and is rotatably connected to the columns, and the photovoltaic panel is installed on the upper side of the support shaft.

6. A photoelectric hydrogen production device according to claim 5, characterized in that: The support is provided with two columns, which are arranged at two ends of the support shaft.

7. The photovoltaic hydrogen production device according to claim 1, characterized in that: The pneumatic device includes a worm gear, a worm and an air motor. The worm gear is coaxially fixedly connected to the support shaft, the worm is rotatably connected to one side of the column and cooperates with the worm gear. The air motor is installed on the column and is transmission-connected to the worm gear. The air compressor can be connected to the air motor via the switching device.

8. The photovoltaic hydrogen production device according to claim 1, characterized in that: The hydrogen production device also includes a battery, the photovoltaic panel is electrically connected to the battery, and the battery is electrically connected to the air compressor.

9. The photovoltaic hydrogen production device according to claim 8, characterized in that: The distance from the air compressor to the hydrogen storage tank, and the distance from the battery to the hydrogen storage tank are both greater than 20 meters.

10. The photovoltaic hydrogen production device according to claim 1, characterized in that: The hydrogen exhaust valve is arranged at the upper end of the hydrogen storage tank and is a manual valve.

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