Photocatalytic reduction CO2 reaction device

Abstract

The utility model relates to a reaction device, and particularly discloses a photocatalytic reduction CO2 reaction device which comprises a water tank, a light source emitter and a heating seat, a heating cylinder is arranged at the upper end of the heating seat, a reaction container is arranged at the upper end of the water tank, a first flow guide pipe and a second flow guide pipe are arranged between the heating seat and the reaction container, and a support is arranged in the reaction container. A catalyst cylinder is arranged at the upper end of the support, and spiral blades are arranged on the outer side of the catalyst cylinder, fixedly connected with the catalyst cylinder and arranged on one side of the first flow guide pipe and one side of the second flow guide pipe. Carbon dioxide and water vapor are input into the reaction container through the two flow guide pipes, and the carbon dioxide and the water vapor entering the reaction container spirally flow along the surfaces of the spiral blade and the catalyst cylinder under the guidance of the spiral blade, so that the carbon dioxide can be in full contact with the water vapor, and the carbon dioxide can fully react with the catalyst cylinder; and the reaction efficiency of the photocatalytic reduction CO2 reaction device is improved.

Description

Technical Field

[0001] The utility model relates to a reaction device, in particular to a photocatalytic reduction CO2 reaction device. Background Art

[0002] Among the many ways to eliminate CO2, photocatalytic CO2 reduction can fix solar energy and convert CO2 into a series of energy substances such as CH4, CO, and CH3OH, which can not only reduce the concentration of CO2 in the atmosphere, but also alleviate the current energy crisis. Therefore, it is of great significance to study the CO2 hydrogenation reaction process. At the same time, solar energy, as an inexhaustible clean energy, is an important form of energy in the future society.

[0003] The photocatalytic reduction of CO2 reaction devices on the market mainly include light source emitters, catalysts, reactors, gas circulation systems, and temperature control systems. The light source emitters emit photons through LED lights, lasers, or sunlight, and the photons are absorbed by the catalyst. After the catalyst absorbs light energy, the electrons in the photocatalyst jump from the valence band to the conduction band, generating electron-hole pairs that react with carbon dioxide molecules in the environment. Common catalysts are mostly cylindrical structures and are installed in the center of the container. The gas injected into the container from the side of the container is mostly blown to the catalyst from the side of the catalyst. Therefore, when the catalyst reacts with the gas, the reaction area will be unevenly distributed, affecting the conversion efficiency. Utility Model Content

[0004] In view of the above problems, the utility model proposes a photocatalytic reduction of CO2 reaction device to solve the disadvantage that in the existing photocatalytic reduction of CO2 reaction device, when the catalyst reacts with the gas during use, the reaction area distribution is uneven, which affects the conversion efficiency.

[0005] In order to achieve the purpose of the utility model, the utility model is implemented through the following technical solutions:

[0006] A photocatalytic reduction CO2 reaction device comprises a first water tank, a light source emitter and a heating seat, a heating cylinder is arranged at the upper end of the heating seat, a reaction container is arranged at the upper end of the water tank, a first guide pipe for conveying carbon dioxide into the reaction container and a second guide pipe for infusing water vapor into the reaction container are arranged between the heating seat and the reaction container;

[0007] A bracket is provided in the reaction container, the lower end of the bracket is fixedly connected to the bottom of the reaction container, the upper end of the bracket is provided with a catalyst tube, the outer side of the catalyst tube is provided with a spiral blade, the spiral blade is fixedly connected to the catalyst tube, and the spiral blade is placed on one side of the gas injection port of the first guide tube and the second guide tube.

[0008] Furthermore, an exhaust port is provided on the outer side of the light source emitter, and the exhaust port is communicated with the reaction container.

[0009] Furthermore, a second water tank is provided at the upper end of the first water tank, the second water tank is placed below the catalyst cartridge, the second water tank is communicated with a liquid discharge port provided outside the first water tank, and the second water tank is communicated with the reaction container.

[0010] Furthermore, a cylinder cover is provided at the upper end of the heating cylinder, the cylinder cover is detachably connected to the heating cylinder, an air injection port is provided on the cylinder cover, and a rubber plug is provided at the lower end of the cylinder cover, which is buckled into the upper port of the heating cylinder.

[0011] Furthermore, clean water is contained in the heating cylinder, and the air inlet of the first guide pipe is placed on the top of the heating cylinder.

[0012] Furthermore, a hose is provided in the heating cylinder, the upper end of the hose is connected to the air injection port, the lower end of the hose is connected to the second flow guide pipe, and the air inlet of the second flow guide pipe is placed at the bottom of the first flow guide pipe.

[0013] Furthermore, support legs are provided at the lower ends of the first water tank and the heating seat, the upper ends of the support legs are fixedly connected to the first water tank or the heating seat, and the lower ends of the support legs are provided with rubber washers.

[0014] Furthermore, there are a plurality of supporting legs, and the plurality of supporting legs are arranged in sequence and at intervals.

[0015] Furthermore, the cross section of the light source emitter is rectangular.

[0016] Furthermore, the hose is a serpentine hose.

[0017] The beneficial effects of the utility model are:

[0018] 1. Carbon dioxide and water vapor are input into the reaction vessel through two guide pipes. The carbon dioxide and water vapor entering the reaction vessel will flow in a spiral along the surface of the spiral blades and the catalyst tube under the guidance of the spiral blades, so that carbon dioxide can fully contact with water vapor and react with the catalyst tube, thereby improving the reaction efficiency of the photocatalytic reduction CO reaction device.

[0019] 2. By connecting the exhaust port to the reaction container, these harmful gases or steam can be discharged in time to avoid accumulation inside the light source emitter, thereby reducing the risk of safety accidents such as explosion or poisoning.

[0020] 3. When the catalyst in the catalyst cylinder generates heat during the reaction, the liquid in the water tank (such as water) can absorb this heat through heat exchange, thereby effectively cooling the catalyst to prevent it from overheating and being damaged or losing activity.

[0021] 4. The detachable connection between the cylinder cover and the heating cylinder allows the user to easily open or close the heating cylinder to add reactants, remove products or perform cleaning operations. This design improves the usability and operating efficiency of the equipment; the rubber plug is buckled into the upper port of the heating cylinder to ensure the sealing of the heating cylinder during the heating process, which can not only prevent heat loss and improve heating efficiency, but also prevent reactants or products from leaking out during the heating process, ensuring the safety and accuracy of the reaction.

[0022] 5. Clean water can act as a temperature buffer layer in the heating cylinder to help stabilize and control the temperature inside the heating cylinder. When the external heat source heats the heating cylinder, the clean water can absorb part of the heat and slow down the rate of temperature rise, thereby providing a more uniform and stable heating environment. Due to the presence of clean water, even if the outside of the heating cylinder is heated at high temperature, the internal temperature will not rise rapidly to an excessively high level, thereby preventing equipment damage or runaway reaction caused by overheating.

[0023] 6. The design of the serpentine hose increases the flow path and residence time of the gas in the heating cylinder, allowing the gas to more fully exchange heat with the clean water or other media in the heating cylinder, thereby improving the preheating effect of the gas. The preheated gas can reach a more suitable temperature before entering the reaction vessel, which is conducive to the reaction.

[0024] 7. The presence of supporting legs enables the entire device to be placed stably on the ground, reducing the safety risks caused by shaking or tilting of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural diagram of a heating seat in a photocatalytic reduction CO2 reaction device provided by the utility model.

[0027] Figure 2 It is a structural diagram of spiral blades in a photocatalytic reduction CO2 reaction device provided by the utility model.

[0028] Figure 3 It is a diagram of the internal structure of a heating cylinder in a photocatalytic reduction CO2 reaction device provided by the utility model.

[0029] Among them: 1. first water tank; 2. supporting legs; 3. heating seat; 4. heating tube; 5. tube cover; 6. reaction container; 7. light source emitter; 8. exhaust port; 9. drain port; 10. catalyst tube; 11. bracket; 12. second water tank; 13. gas injection port; 14. first guide tube; 15. second guide tube; 16. rubber plug; 17. hose; 18. spiral blade. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] according to Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a photocatalytic reduction CO2 reaction device is proposed, including a first water tank 1, a light source emitter 7 and a heating seat 3, a heating cylinder 4 is provided at the upper end of the heating seat 3, a reaction container 6 is provided at the upper end of the first water tank 1, and a first guide tube 14 for conveying carbon dioxide into the reaction container 6 and a second guide tube 15 for infusing water vapor into the reaction container 6 are provided between the heating seat 3 and the reaction container 6; the cross section of the light source emitter 7 is rectangular, and the light source at the lower end of the light source emitter 7, such as an LED lamp, a laser or sunlight, emits photons, which are absorbed by the catalyst tube 10. After the catalyst tube 10 absorbs light energy, the electrons in the photocatalyst jump from the valence band to the conduction band, generating electron-hole pairs. Carbon dioxide molecules in the environment are adsorbed onto the surface of the catalyst tube 10. The electrons in the conduction band and the holes in the valence band participate in the reduction and oxidation reactions respectively, wherein the electrons participate in the reduction process of carbon dioxide and convert it into the desired product. The generated product is desorbed and released from the catalyst surface, and the catalyst re-enters the next round of reaction. A bracket 11 is provided in the reaction container 6, and the lower end of the bracket 11 is fixedly connected to the bottom of the reaction container 6. A catalyst cartridge 10 is provided at the upper end of the bracket 11. A spiral blade 18 is provided on the outside of the catalyst cartridge 10. The spiral blade 18 is fixedly connected to the catalyst cartridge 10 and is placed on one side of the first guide tube 14 and the second guide tube 15.

[0037] Carbon dioxide and water vapor used to assist carbon dioxide in reacting are input into the reaction vessel 6 through the first guide tube 14 and the second guide tube 15. The carbon dioxide and water vapor entering the reaction vessel 6 will flow in a spiral along the surface of the spiral blade 18 and the catalyst cartridge 10 under the guidance of the spiral blade 18, so that carbon dioxide can fully contact with water vapor, carbon dioxide can fully react with the catalyst cartridge 10, and the reaction efficiency of the photocatalytic reduction CO2 reaction device is improved. An exhaust port 8 is provided on the outside of the light source emitter 7, and the exhaust port 8 is connected to the reaction vessel 6. The gas molecules decomposed in the reaction vessel 6 are discharged outward through the exhaust port 8. The first and second water tanks 12 are provided at the upper end of the first water tank 1, and the first and second water tanks 12 are placed below the catalyst cartridge 10. The first and second water tanks 12 are connected to the drainage port 9 provided on the outside of the first water tank 1, and the first and second water tanks 12 are connected to the reaction vessel 6. The liquid decomposed in the reaction vessel 6 flows into the first water tank 1 and the second water tank 12, and then is discharged through the drainage port 9. In order to facilitate the operator to add liquid into the heating seat 3, a cylinder cover 5 is provided at the upper end of the heating cylinder 4, and the cylinder cover 5 is detachably connected to the heating cylinder 4. A gas injection port 13 is provided on the cylinder cover 5, and a rubber plug 16 is provided at the lower end of the cylinder cover 5. The rubber plug 16 is buckled into the upper end of the heating cylinder 4. When the cylinder cover 5 covers the upper end of the heating cylinder 4, the rubber plug 16 at the lower end of the cylinder cover 5 is inserted into the upper end edge of the heating cylinder 4. The rubber plug 16 fixes the cylinder cover 5 by cooperating with the heating cylinder 4, and the rubber plug 16 can also play a sealing role. Clean water is contained in the heating cylinder 4, and the air inlet of the first guide tube 14 is placed at the top of the heating cylinder 4. The heating element in the heating cylinder 4 heats the clean water injected into the heating cylinder 4, and the water vapor generated by the heating of the clean water is transported to the reaction container 6 through the first guide tube 14 as a reaction auxiliary gas of carbon dioxide to accelerate the reaction between the carbon dioxide gas and the catalyst cylinder 10. A hose 17 is provided in the heating cylinder 4. The hose 17 is a serpentine structure. The upper end of the hose 17 is connected to the gas injection port 13, and the lower end of the hose 17 is connected to the second guide tube 15. The air inlet of the second guide tube 15 is placed at the bottom of the first guide tube 14. Carbon dioxide gas is injected into the hose 17 through the gas injection port 13. The clean water in the heating cylinder 4 heats the hose 17 to maintain the temperature required for the carbon dioxide gas reaction. The heated carbon dioxide gas is passed into the reaction container 6 through the second guide tube 15 to react with the catalyst cylinder 10. In order to improve the stability of the first water tank 1 and the heating seat 3 when placed on the table, a support leg 2 is provided at the lower end of the first water tank 1 and the lower end of the heating seat 3. The number of the support legs 2 is set in multiples, and the multiple support legs 2 are arranged in sequence. The upper end of the support leg 2 is fixedly connected to the first water tank 1 or the heating seat 3, and the lower end of the support leg 2 is provided with a rubber gasket. The rubber gasket can play an anti-skid role. At the same time, since the supporting legs 2 support the first water tank 1 and the heating seat 3, the water stains on the table will not wet the bottom of the first water tank 1 and the heating seat 3, ensuring the safety of the equipment.

[0038] During specific operation, the light source at the lower end of the light source emitter 7, such as an LED lamp, a laser or sunlight, emits photons, which are absorbed by the catalyst cartridge 10. After the catalyst cartridge 10 absorbs light energy, the electrons in the photocatalyst transition from the valence band to the conduction band, generating electron-hole pairs. Carbon dioxide molecules in the environment are adsorbed onto the surface of the catalyst cartridge 10. The electrons in the conduction band and the holes in the valence band participate in the reduction and oxidation reactions, respectively, wherein the electrons participate in the reduction process of carbon dioxide, converting it into the desired product. The generated product is desorbed and released from the catalyst surface, and the catalyst re-enters the next round of reaction. Carbon dioxide and water vapor used to assist carbon dioxide in reacting are input into the reaction vessel 6 through the first guide tube 14 and the second guide tube 15. The carbon dioxide and water vapor entering the reaction vessel 6 will flow in a spiral along the surface of the spiral blade 18 and the catalyst cartridge 10 under the guidance of the spiral blade 18, so that carbon dioxide can fully contact with water vapor, carbon dioxide can fully react with the catalyst cartridge 10, and the reaction efficiency of the photocatalytic reduction CO2 reaction device is improved.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photocatalytic reduction CO2 reaction device, characterized in that: It comprises a first water tank (1), a light source emitter (7) and a heating seat (3), wherein a heating cylinder (4) is provided at the upper end of the heating seat (3), a reaction container (6) is provided at the upper end of the first water tank (1), and a first flow guide pipe (14) for conveying carbon dioxide into the reaction container (6) and a second flow guide pipe (15) for injecting water vapor into the reaction container (6) are provided between the heating seat (3) and the reaction container (6); A support (11) is provided in the reaction container (6), the lower end of the support (11) is fixedly connected to the bottom of the reaction container (6), the upper end of the support (11) is provided with a catalyst cartridge (10), the outer side of the catalyst cartridge (10) is provided with a spiral blade (18), the spiral blade (18) is fixedly connected to the catalyst cartridge (10), and the spiral blade (18) is placed on one side of the first flow guide tube (14) and the second flow guide tube (15).

2. The device according to claim 1, characterized in that An exhaust port (8) is provided on the outside of the light source emitter (7), and the exhaust port (8) is in communication with the reaction container (6).

3. The device according to claim 1, characterized in that A second water tank (12) is provided at the upper end of the first water tank (1), the second water tank (12) is placed below the catalyst cartridge (10), the second water tank (12) is connected to a liquid discharge port (9) provided on the outside of the first water tank (1), and the second water tank (12) is connected to the reaction container (6).

4. The device according to claim 1, characterized in that A cylinder cover (5) is provided at the upper end of the heating cylinder (4), the cylinder cover (5) being detachably connected to the heating cylinder (4), a gas injection port (13) being provided on the cylinder cover (5), and a rubber plug (16) being provided at the lower end of the cylinder cover (5), the rubber plug (16) being buckled into the upper port of the heating cylinder (4).

5. The device according to claim 3, characterized in that The heating cylinder (4) contains clean water, and the air inlet of the first flow guide pipe (14) is placed at the top of the heating cylinder (4).

6. The device according to claim 4, characterized in that A hose (17) is provided in the heating cylinder (4); the upper end of the hose (17) is connected to the gas injection port (13); the lower end of the hose (17) is connected to the second flow guide pipe (15); and the air inlet of the second flow guide pipe (15) is located at the bottom of the first flow guide pipe (14).

7. The device according to claim 1, characterized in that Support legs (2) are provided at the lower ends of the first water tank (1) and the heating seat (3); the upper ends of the support legs (2) are fixedly connected to the first water tank (1) or the heating seat (3); and the lower ends of the support legs (2) are provided with rubber gaskets.

8. The device according to claim 7, characterized in that The number of the supporting legs (2) is provided in plurality, and the plurality of supporting legs (2) are arranged in sequence and at intervals.

9. The device according to claim 1, characterized in that The cross section of the light source emitter (7) is rectangular.

10. The device according to claim 6, characterized in that The hose (17) is a serpentine hose.

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