Photocatalytic water splitting hydrogen production device
By using threaded connections to install the lamp and semiconductor column in the photocatalytic water splitting hydrogen production device, and by using a stirring mechanism to accelerate the reaction, the problems of inconvenient device disassembly and slow reaction speed are solved, thus improving the hydrogen production efficiency.
Patent Information
- Application Number
- CN202520261701.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing photocatalytic water splitting hydrogen production devices are inconvenient to disassemble and replace lamps and semiconductor columns, and the reaction speed is slow, which affects the hydrogen production efficiency.
A device comprising a reaction chamber, a cover plate, a semiconductor assembly, and a stirring mechanism was designed. The lamp and the semiconductor column are installed via a threaded connection, and the stirring mechanism is used to accelerate the reaction during the reaction process.
It enables convenient disassembly and replacement of the lamp and semiconductor column, improving the efficiency of photocatalytic water splitting for hydrogen production.
Smart Images
Figure CN223800510U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogen production technology field, concretely relates to a kind of photocatalytic water decomposition hydrogen production device. BACKGROUND
[0002] Hydrogen production technology by water photolysis Hydrogen production technology by water photolysis was first reported by Fujishima A and Honda K, who discovered that TiO2 single-crystal electrodes could photocatalytically decompose water to produce hydrogen. This discovery opened up the possibility of using solar energy to directly decompose water to produce hydrogen and paved the way for research into using solar energy to produce hydrogen by water photolysis. With the evolution of electrode electrolysis of water to semiconductor photocatalytic decomposition of water to produce hydrogen by multiphase photocatalysis and the subsequent discovery of photocatalysts other than TiO2, research into photocatalytic decomposition of water to produce hydrogen (referred to as water photolysis) has emerged, and significant progress has been made in the synthesis and modification of photocatalysts. The existing technology has the following problems:
[0003] The existing photocatalytic water decomposition hydrogen production device is inconvenient to disassemble and replace the lamp and semiconductor column used in the device, which is inconvenient for comparison with various experiments. In addition, the reaction speed in the photocatalytic reaction is slow, which affects the efficiency of hydrogen production. SUMMARY
[0004] The utility model provides a kind of photocatalytic water decomposition hydrogen production device to solve the problems in the above background technology.
[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:
[0006] A photocatalytic water decomposition hydrogen production device, comprising a reaction cylinder, a cover plate is connected to the top of the outer wall of the reaction cylinder, a catalyst conduit is fixedly connected to the top of the left side of the reaction cylinder, an exhaust pipe is fixedly connected to the top of the right side of the reaction cylinder, a discharge valve is provided on the outer wall of the catalyst conduit and the exhaust pipe, a water inlet pipe is fixedly connected to the top of the front side of the reaction cylinder, a rubber plug is movably connected to the front end of the water inlet pipe, a connecting pipe is fixedly connected to the center of the top of the cover plate, a semiconductor assembly is provided on the outer wall of the cover plate near the connecting pipe, and the outer wall of the semiconductor assembly penetrates into the interior of the reaction cylinder, an annular frame is fixedly connected to the outer wall of the bottom of the reaction cylinder, a plurality of legs are fixedly connected to the outer wall of the annular frame in an annular array, a lamp mounting assembly is provided on the bottom of the cover plate, a stirring mechanism is provided at the center of the bottom of the reaction cylinder, and the outer wall of the stirring mechanism penetrates into the lower side of the reaction cylinder near the lamp mounting assembly.
[0007] The further improvement in the technical scheme of the utility model lies in that the semiconductor assembly comprises a semiconductor column, a sealing ring pad and a nut, a threaded groove is formed at the top of the outer wall of the semiconductor column, the inner part of the sealing ring pad is sleeved with the outer wall of the semiconductor column, and the inner part of the nut is threadedly connected with the outer wall of the semiconductor column through the threaded groove.
[0008] The further improvement in the technical scheme of the utility model lies in that the reaction cylinder is made of transparent glass material, and the outer wall of the reaction cylinder is fixedly connected with a clamping ring on the upper side close to the water inlet pipe.
[0009] The further improvement in the technical scheme of the utility model lies in that the inner wall of the cover plate is fixedly connected with a sealing ring one, the outer wall of the sealing ring one is overlapped with the outer wall of the clamping ring, and the bottom of the cover plate is fixedly connected with a threaded sleeve on the inner side close to the four semiconductor columns.
[0010] The further improvement in the technical scheme of the utility model lies in that the light installation assembly comprises a transparent cover, a threaded clamping ring and a sealing ring two, the inner wall of the threaded clamping ring is fixedly connected with the top of the outer wall of the transparent cover, and the lower surface of the sealing ring two is fixedly connected with the top of the threaded clamping ring.
[0011] The further improvement in the technical scheme of the utility model lies in that the outer wall of the threaded clamping ring is threadedly connected with the inner wall of the threaded sleeve, and the upper surface of the sealing ring two is overlapped with the inner wall of the cover plate.
[0012] The further improvement in the technical scheme of the utility model lies in that the stirring mechanism comprises a motor, a rotating disc and a plurality of stirring blades, the output shaft of the motor is fixedly connected with the middle side of the bottom of the rotating disc, and one end of each of the plurality of stirring blades is fixedly connected with the outer wall of the rotating disc in an annular array.
[0013] The further improvement in the technical scheme of the utility model lies in that the top of the motor is fixedly connected with the bottom of the reaction cylinder, and the output shaft of the motor penetrates into the inner part of the reaction cylinder.
[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:
[0015] 1. The utility model provides a kind of photocatalytic decomposition water hydrogen production device, cooperation between reaction cylinder, cover plate, connecting pipe, semiconductor assembly and light installation component is adopted, by installing light into light installation component, and power cord on light is passed through the penetration of connecting pipe to device outside, then light installation component is installed in the bottom of cover plate in the way of screwing, while, semiconductor column is fixed on cover plate by nut, the photocatalytic decomposition water hydrogen production device of existing in use is not convenient to dismantle and replace light and semiconductor column used by device, it is not convenient to cooperate for a variety of experimental comparison problem, reach the beneficial effect that light and semiconductor column are conveniently dismantled and replaced, it is convenient to cooperate for a variety of experimental comparison.
[0016] 2, the utility model provides a kind of photocatalytic decomposition water hydrogen production device, cooperation between reaction cylinder and stirring mechanism is adopted, when reaction cylinder reacts, by operating stirring mechanism to stir in reaction cylinder, the reaction speed between catalyst and water is accelerated, further accelerate the efficiency of water photolysis hydrogen production, the problem that the speed of reaction in photocatalytic reaction is slow, influence hydrogen production efficiency is solved, reach the beneficial effect that the efficiency of water photolysis hydrogen production is improved. DRAWINGS
[0017] Figure 1 It is the three-dimensional structure schematic diagram of the photocatalytic decomposition water hydrogen production device of the utility model;
[0018] Figure 2 It is the three-dimensional split structure schematic diagram of the photocatalytic decomposition water hydrogen production device of the utility model;
[0019] Figure 3 It is the three-dimensional structure schematic diagram of the cover plate of the utility model;
[0020] Figure 4 It is the three-dimensional structure schematic diagram of the light installation component of the utility model;
[0021] Figure 5 It is the three-dimensional structure schematic diagram of the stirring mechanism of the utility model.
[0022] In the drawing: 1, reaction cylinder;101, snap ring;2, cover plate;21, sealing ring one;22, threaded sleeve;3, catalyst conduit;4, exhaust pipe;5, discharge valve;6, water inlet pipe;7, rubber plug;8, connecting pipe;9, semiconductor assembly;91, semiconductor column;910, thread groove;92, sealing ring pad;93, nut;10, annular frame;11, support leg;12, light installation component;121, transparent cover;122, threaded snap ring;123, sealing ring two;13, stirring mechanism;131, motor;132, turntable;133, stirring blade. DETAILED DESCRIPTION
[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0024] As shown in Figure 1 The utility model provides a kind of photocatalytic water decomposition hydrogen production device, including reaction cylinder 1, the top of the outer wall of reaction cylinder 1 is sleeved with cover plate 2, the left top of reaction cylinder 1 is fixedly connected with catalyst conduit 3, the right top of reaction cylinder 1 is fixedly connected with exhaust pipe 4, the outer wall of catalyst conduit 3 and exhaust pipe 4 is all provided with discharge valve 5, the top of the front side of reaction cylinder 1 is fixedly connected with water inlet pipe 6, the front end of water inlet pipe 6 is movably connected with rubber plug 7, the top of cover plate 2 is fixedly connected with connecting pipe 8 in the center end, the outer wall of cover plate 2 is all provided with semiconductor assembly 9 near connecting pipe 8, and the outer wall of semiconductor assembly 9 is all penetrated to the inside of reaction cylinder 1, the outer wall bottom of reaction cylinder 1 is fixedly connected with annular frame 10, the outer wall annular array of annular frame 10 is fixedly connected with several supporting legs 11, the middle side of the bottom of cover plate 2 is provided with light installation component 12, the center end of the bottom of reaction cylinder 1 is provided with stirring mechanism 13, and the outer wall top of stirring mechanism 13 is all penetrated to the downside of light installation component 12 in the inside of reaction cylinder 1;
[0025] Reaction cylinder 1, cover plate 2, catalyst conduit 3, exhaust pipe 4, discharge valve 5, water inlet pipe 6, rubber plug 7, connecting pipe 8, semiconductor assembly 9, light installation component 12 and stirring mechanism 13 are arranged, semiconductor assembly 9 and light installation component 12 are installed on cover plate 2 by thread, to facilitate the disassembly and assembly of the two, stirring mechanism 13 is installed at the bottom of reaction cylinder 1, to stir water and catalyst, and to speed up the reaction.
[0026] As shown in Figure 2 The utility model provides a kind of photocatalytic water decomposition hydrogen production device technical scheme: semiconductor assembly 9 includes semiconductor column 91, sealing ring pad 92 and nut 93, the outer wall top of semiconductor column 91 is provided with thread groove 910, sealing ring pad 92 is sleeved in the outer wall of semiconductor column 91, the inside of nut 93 is connected by thread groove 910 with the outer wall of semiconductor column 91, sealing ring pad 92 is arranged, to increase the sealing property of the connection between semiconductor column 91 and cover plate 2, reaction cylinder 1 is set to transparent glass material, the upper side of the outer wall of reaction cylinder 1 is fixedly connected with snap ring 101 near water inlet pipe 6.
[0027] As shown in Figure 3As shown in the technical scheme of the utility model provides a kind of photocatalytic decomposition water hydrogen production device: the inner wall of cover plate 2 is fixedly connected with sealing ring one 21, the outer wall of sealing ring one 21 and snap ring 101 outer wall lap joint, cover plate 2 bottom near the inner side of four semiconductor columns 91 is fixedly connected with threaded sleeve 22, set sealing ring one 21, sealing ring one 21 extrusion fit in the outer wall of snap ring 101, the sealing property of guaranteeing that reaction cylinder 1 is connected with cover plate 2.
[0028] As Figure 4 The utility model provides a kind of photocatalytic decomposition water hydrogen production device technical scheme: light installation component 12 includes transparent cover 121, threaded snap ring 122 and sealing ring two 123, the inner wall of threaded snap ring 122 is fixedly connected in the outer wall top of transparent cover 121, the lower surface of sealing ring two 123 is fixedly connected in the top of threaded snap ring 122, the outer wall of threaded snap ring 122 is connected in the inner wall of threaded sleeve 22 with screw, the upper surface of sealing ring two 123 lap joint in the inner wall of cover plate 2, transparent cover 121 is screwed in threaded sleeve 22 by threaded snap ring 122, so that sealing ring two 123 and the inner wall of cover plate 2 are extruded fit, increase the sealing property of transparent cover 121 and the installation of cover plate 2.
[0029] As Figure 5 The utility model provides a kind of photocatalytic decomposition water hydrogen production device technical scheme: stirring mechanism 13 includes motor 131, carousel 132 and several stirring vanes 133, the output shaft of motor 131 is fixedly connected with the middle side of carousel 132 bottom, and the one end of several stirring vanes 133 is respectively annular array fixedly connected in the outer wall of carousel 132, the top of motor 131 is fixedly connected in the bottom of reaction cylinder 1, and the output shaft of motor 131 penetrates to the inside of reaction cylinder 1, the output shaft of motor 131 drives carousel 132 to rotate, so that multiple stirring vanes 133 stir water and catalyst, further speed up the efficiency of photolysis water hydrogen production.
[0030] The working principle of the photocatalytic decomposition water hydrogen production device will be described in detail below.
[0031] As Figures 1-5As shown, in the experiment of photocatalytic decomposition of water to produce hydrogen using the device, first, the light used in the experiment is placed in the transparent cover 121, and then the power cord on the light is passed out to the outside along the connecting pipe 8, the transparent cover 121 is screwed into the threaded sleeve 22 through the threaded snap ring 122, the sealing ring 123 is tightly attached to the inner wall of the cover plate 2, and the sealing performance of the transparent cover 121 is improved, then the sealing ring pad 92 is sleeved on the cover plate 2 along the outer wall of the semiconductor column 91, and is fixed by screwing between the nut 93 and the semiconductor column 91, the installation of the semiconductor column 91 is completed, the light installation assembly 12 and the semiconductor column 91 are inserted into the reaction cylinder 1, so that the cover plate 2 is sleeved on the top of the reaction cylinder 1, the sealing ring 21 is tightly attached to the outer wall of the snap ring 101, and the sealing performance of the reaction cylinder 1 and the cover plate 2 is guaranteed, then water is injected into the reaction cylinder 1 through the water inlet pipe 6, and the opening of the water inlet pipe 6 is blocked by the rubber plug 7, then the discharge valve 5 on the catalyst conduit 3 is opened, the catalyst is sent into the reaction cylinder 1 through the catalyst conduit 3, and the water is catalyzed, the power cord of the light is connected to the external power supply of the motor 131, after the semiconductor column 91 absorbs photons, the electrons in the valence band are excited to the conduction band, and at the same time, holes are left in the valence band, the electrons migrate to the surface and combine with the protons adsorbed on the surface of the catalyst to generate hydrogen, in the process of reaction, the motor 131 output shaft drives the turntable 132 to rotate, so that the stirring blade 133 stirs the water and catalyst in the reaction cylinder 1, accelerates the reaction speed, and further accelerates the efficiency of the water photolysis to produce hydrogen, finally, the generated hydrogen is discharged from the exhaust pipe 4 by opening the discharge valve 5 on the exhaust pipe 4.
[0032] The specific types and structures of the discharge valve 5 and the motor 131 are existing products, and the specific circuit connection structure and control relationship of the motor 131 are prior art, which will not be described in detail here.
[0033] The above general description of the present application is described in detail, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the present application, the modifications or improvements are within the scope of the present application.
Claims
1. A device for photocatalytic decomposition of water for hydrogen production comprising a reaction cylinder (1), characterized in that: The top of the outer wall of the reaction cylinder (1) is sleeved with a cover plate (2), the left top of the reaction cylinder (1) is fixedly connected with a catalyst conduit (3), the right top of the reaction cylinder (1) is fixedly connected with an exhaust pipe (4), the outer walls of the catalyst conduit (3) and the exhaust pipe (4) are both provided with a discharge valve (5), the top of the front side of the reaction cylinder (1) is fixedly connected with a water inlet pipe (6), the front end of the water inlet pipe (6) is movably connected with a rubber plug (7), the top of the center end of the cover plate (2) is fixedly connected with a connecting pipe (8), the outer walls of the top of the cover plate (2) near the connecting pipe (8) are both provided with a semiconductor assembly (9), and the outer walls of the semiconductor assemblies (9) all penetrate into the inside of the reaction cylinder (1), the bottom of the outer wall of the reaction cylinder (1) is fixedly connected with an annular frame (10), the outer wall of the annular frame (10) is fixedly connected with a plurality of supporting legs (11) in an annular array, the bottom of the center side of the cover plate (2) is provided with a light installation assembly (12), the center end of the bottom of the reaction cylinder (1) is provided with a stirring mechanism (13), and the outer walls of the top of the stirring mechanism (13) all penetrate into the lower side of the inside of the reaction cylinder (1) near the light installation assembly (12).
2. The device for photocatalytic water splitting for hydrogen production according to claim 1, characterized in that: The semiconductor assembly (9) comprises a semiconductor column (91), a sealing ring pad (92) and a nut (93), the outer wall of the top of the semiconductor column (91) is provided with a threaded groove (910), the inside of the sealing ring pad (92) is sleeved on the outer wall of the semiconductor column (91), and the inside of the nut (93) is threadedly connected with the outer wall of the semiconductor column (91) through the threaded groove (910).
3. The device for photocatalytic water splitting for hydrogen production according to claim 1, characterized in that: The reaction cylinder (1) is made of transparent glass, and the upper side of the outer wall of the reaction cylinder (1) near the water inlet pipe (6) is fixedly connected with a snap ring (101).
4. The device for photocatalytic water splitting for hydrogen production according to claim 1, characterized in that: The inner wall of the cover plate (2) is fixedly connected with a sealing ring I (21), the outer wall of the sealing ring I (21) is overlapped with the outer wall of the snap ring (101), and the bottom of the cover plate (2) is fixedly connected with a threaded sleeve (22) on the inner side near the four semiconductor columns (91).
5. The device for photocatalytic water splitting for hydrogen production according to claim 1, characterized in that: The light installation assembly (12) comprises a transparent cover (121), a threaded snap ring (122) and a sealing ring II (123), the inner wall of the threaded snap ring (122) is fixedly connected to the outer wall of the top of the transparent cover (121), and the lower surface of the sealing ring II (123) is fixedly connected to the top of the threaded snap ring (122).
6. The device for photocatalytic water splitting for hydrogen production according to claim 5, characterized in that: The outer wall of the threaded snap ring (122) is threadedly connected with the inner wall of the threaded sleeve (22), and the upper surface of the sealing ring II (123) is overlapped on the inner wall of the cover plate (2).
7. The device for photocatalytic water splitting for hydrogen production according to claim 1, characterized in that: The stirring mechanism (13) comprises a motor (131), a rotating disc (132) and a plurality of stirring blades (133), the output shaft of the motor (131) is fixedly connected to the middle side of the bottom of the rotating disc (132), and one end of each of the plurality of stirring blades (133) is fixedly connected to the outer wall of the rotating disc (132) in an annular array.
8. The photocatalytic water splitting device according to claim 7, wherein: The top of the motor (131) is fixedly connected to the bottom of the reaction cylinder (1), and the output shaft of the motor (131) penetrates into the inside of the reaction cylinder (1).