Light-by-light solar-driven carbon dioxide conversion device and circulation system

Abstract

The utility model discloses a light-by-light solar driven carbon dioxide conversion device and circulation system, which comprises a photocatalytic reaction tube, a photocatalytic column is arranged in the photocatalytic reaction tube, a spiral part is arranged on the surface of the photocatalytic column, and one end of the photocatalytic column is connected with a rotating motor. A gas inlet pipeline and a gas outlet pipeline are arranged on the surfaces of the two ends of the photocatalytic reaction pipe respectively, a first reflecting plate is arranged below the photocatalytic reaction pipe, and a second reflecting plate is arranged above the photocatalytic reaction pipe; the photocatalytic reaction tube, the first reflecting plate and the second reflecting plate are all fixed on the connecting bracket, the connecting bracket is fixedly connected with the holder, and a four-quadrant sun tracking sensor is also arranged on the connecting bracket; the circulating system corresponds to a factory, and a conversion device is adopted to carry out photocatalytic conversion on carbon dioxide. The catalytic reactor has the advantages of high catalytic efficiency and no reaction product retention.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of photocatalysis technology, specifically relates to a light-driven carbon dioxide conversion device and circulating system of solar energy. BACKGROUND

[0002] The photocatalysis technology is based on the photogenerated carrier effect of semiconductor material under light conditions, so that the material and other substances have oxidation-reduction reaction, so as to achieve energy conversion, environmental management and other purposes, the common idea has the photocatalysis technology to convert carbon dioxide into other organic matter to reach waste gas treatment.

[0003] But in practical application, most of the light-driven carbon dioxide conversion device of solar energy is at rest state, since the sun moves, the sunlight angle changes, which can cause the system to not receive the strongest sunlight in real time, the photocatalytic efficiency is greatly reduced, and the converted substances often have part of the system to be retained and not be recycled, and long-term accumulation can cause device blockage and corrosion.

[0004] Therefore, it is urgent to provide a light-driven carbon dioxide conversion device and circulating system of solar energy to solve the above problems. SUMMARY

[0005] The utility model solves the technical problem to provide a light-driven carbon dioxide conversion device and circulating system of solar energy, which has the advantages of high catalytic efficiency and no reaction product retention.

[0006] In order to solve the above technical problem, the utility model provides a light-driven carbon dioxide conversion device of solar energy, which comprises a photocatalytic reaction tube, a photocatalytic column is arranged in the photocatalytic reaction tube, the surface of the photocatalytic column is provided with a spiral part, one end of the photocatalytic column is connected with a rotating motor, the surfaces of the two ends of the photocatalytic reaction tube are respectively provided with an air inlet pipe and an air outlet pipe, a first reflecting plate is arranged below the photocatalytic reaction tube, and a second reflecting plate is arranged above the photocatalytic reaction tube.

[0007] The photocatalytic reaction tube, the first reflecting plate and the second reflecting plate are all fixed on a connecting bracket, the connecting bracket is fixedly connected with a holder, and a four-quadrant sun tracking sensor is further arranged on the connecting bracket.

[0008] Further, the two ends of the photocatalytic reaction tube are provided with plugs, a rubber sealing layer is arranged between the plug and the photocatalytic reaction tube, and the two ends of the photocatalytic column are connected with the corresponding plugs through airtight bearings.

[0009] Further, at least two lugs are arranged on each of the two plugs, and the lugs on the two plugs are matched with each other and fixed through connecting bolts.

[0010] Further, the rubber sealing layer surface is provided with at least two annular convex parts.

[0011] Further, the first and second light-reflecting plates each comprise a mask plate, an adhesive plate and a light-reflecting aluminum plate connected in sequence, the light-reflecting aluminum plate faces the photocatalysis column, and the first and second light-reflecting plates each are in an arc structure.

[0012] Further, the photocatalysis column comprises a graphene inner core and a photocatalysis nano-film covering the outer layer of the graphene inner core.

[0013] Further, the photocatalysis reaction tube is made of quartz glass.

[0014] A circulating system comprises the photocatalysis carbon dioxide conversion device.

[0015] Further, the system comprises a waste gas pretreatment device, a first storage tank, a photocatalysis device array and a second storage tank, the waste gas pretreatment device is used for collecting carbon dioxide generated by a factory and storing the carbon dioxide in the first storage tank, the photocatalysis device array comprises a plurality of photocatalysis carbon dioxide conversion devices, the photocatalysis device array is used for photocatalysis processing the carbon dioxide in the first storage tank to generate methane and storing the methane in the second storage tank, and the second storage tank is used for supplying the factory.

[0016] Further, the first storage tank is connected with an air inlet pipeline, and the second storage tank is connected with an air outlet pipeline.

[0017] The photocatalysis carbon dioxide conversion device has the advantages that:

[0018] 1. The cooperation of the holder and the four-quadrant sun tracking sensor can make the first light-reflecting plate always face the sunlight, the sunlight is reflected and converged on the photocatalysis column, the photocatalysis efficiency is greatly improved, the second light-reflecting plate arranged above the photocatalysis reaction tube is used to reflect and converge the unused light on the photocatalysis column, the energy utilization efficiency is further improved, and the catalysis efficiency is improved.

[0019] 2. The spiral part arranged on the surface of the photocatalysis column and the rotating motor can make the photocatalysis column continuously rotate, form a pushing effect, the carbon dioxide entering the photocatalysis reaction tube is pushed to the air outlet by the rotation of the photocatalysis column, the material transportation is accelerated, and the influence of blockage and corrosion caused by material residues in the tube is avoided.

[0020] 3. The spiral part can also improve the contact area between the carbon dioxide and the catalytic layer, and improve the catalysis efficiency. DRAWINGS

[0021] Figure 1 is the overall structure schematic view of the utility model.

[0022] Figure 2 is a schematic diagram of the internal structure of the photocatalytic reaction tube of the present application;

[0023] Figure 3 is a schematic diagram of the assembly structure of the photocatalytic reaction tube and the photocatalytic column of the present application;

[0024] Figure 4 is a schematic diagram of the explosion structure of the present application Figure 3 ;

[0025] Figure 5 is a schematic diagram of the reflection path of the first reflective plate of the present application;

[0026] Figure 6 is a schematic diagram of the circulation system of the present application. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it, but the embodiments are not intended to limit the present application.

[0028] Referring to Figure 1 and Figure 2 , an embodiment of the photocatalytic solar-driven carbon dioxide conversion device of the present application comprises a photocatalytic reaction tube 1, the material of the photocatalytic reaction tube is quartz glass, which has high light transmittance, a photocatalytic column 2 is arranged in the photocatalytic reaction tube, the surface of the photocatalytic column is provided with a spiral part 3, the photocatalytic column comprises a graphene inner core and a photocatalytic nanomembrane covering the outer layer of the graphene inner core, the graphene inner core has good stability, and the photocatalytic nanomembrane can convert carbon dioxide into methane under the action of sunlight, the photocatalytic nanomembrane is a conventional membrane material, which will not be described in detail. One end of the photocatalytic column is connected with a rotary motor 4, the rotary motor drives the photocatalytic column to rotate, an air inlet pipe 5 and an air outlet pipe 6 are respectively arranged on the surfaces of the two ends of the photocatalytic reaction tube, a first reflective plate 7 is arranged below the photocatalytic reaction tube, and a second reflective plate 8 is arranged above the photocatalytic reaction tube; the photocatalytic reaction tube, the first reflective plate and the second reflective plate are all fixed on a connecting bracket 9, the connecting bracket is fixedly connected with a holder 111, a four-quadrant sun tracking sensor 10 is further arranged on the connecting bracket, the four-quadrant sun tracking sensor can detect the direction of the sun, the holder synchronously adjusts the orientation of the connecting bracket according to the signal of the four-quadrant sun tracking sensor, so that the first reflective plate can always face the sun, the light chasing effect is achieved, and it is ensured that the sunlight with the strongest energy can be received in real time.

[0029] Specifically, in use, the four-quadrant sun tracking sensor detects the position of the sun in real time, and the connecting support is moved by the control connection of the holder to make the first reflecting plate face the sun, and the sunlight is reflected to the photocatalytic reaction tube after being reflected to the first reflecting plate. The photocatalytic reaction tube is of transparent material, so it will be reflected to the photocatalytic column. At this time, the carbon dioxide is introduced into the photocatalytic reaction tube from the air inlet pipe, and the carbon dioxide is converted into methane through the action of light and the photocatalytic column. Of course, by setting different photocatalytic nanometer membranes, different substances such as carbon monoxide can also be converted. At the same time of conversion, the photocatalytic column is driven to rotate by the rotating motor, and the spiral part on the surface of the photocatalytic column plays a pushing role to push the photocatalytic products towards the air outlet pipe direction, and finally the photocatalytic products are discharged from the air outlet pipe to avoid blockage and corrosion caused by material retention.

[0030] In order to better reflect the sunlight on the photocatalytic column, a second reflecting plate is also provided, which is arranged opposite to the first reflecting plate. The sunlight reflected by the first reflecting plate and not irradiated on the photocatalytic column will irradiate on the surface of the second reflecting plate, and the second reflecting plate will reflect the sunlight again to the photocatalytic column, so that the sunlight is irradiated on the photocatalytic column in all directions, and the catalytic efficiency is greatly improved. The function of the holder can increase the energy of the absorbed light of the whole catalytic device to improve the catalytic efficiency.

[0031] The spiral part on the photocatalytic column can also increase the contact area with carbon dioxide and improve the catalytic efficiency.

[0032] The connecting support includes a bottom total support frame and an upper connection support. The bottom total support frame is welded by a plurality of transverse connecting pipes 113 and a plurality of longitudinal arc-shaped pipes 114, so as to form a structure capable of supporting the first reflecting plate. The transverse connecting pipes located directly below the photocatalytic reaction tube are extended to both sides of the first reflecting plate, and are connected and fixed with the upper connection support. The second reflecting plate and the photocatalytic reaction tube are fixed on the upper connection support, so as to form an overall structure which is synchronously driven and adjusted by the holder.

[0033] Reference Figure 3 and Figure 4 Since the photocatalytic column needs to rotate and the photocatalytic reaction tube is of quartz material, a structure for fixing the photocatalytic column and sealing the photocatalytic reaction tube is also designed. Specifically, a plug 11 is arranged at each end of the photocatalytic reaction tube, a rubber sealing layer 12 is arranged between the plug and the photocatalytic reaction tube, and the ends of the photocatalytic column are connected with the corresponding plugs through airtight bearings 112.

[0034] The rubber sealing layer is provided with at least two annular protrusions arranged in the radial direction, and the rubber sealing layer is sleeved on the end portion of the plug, thereby achieving effective sealing between the plug and the photocatalytic reaction tube.

[0035] In order to further improve the overall effect of assembly, at least two supporting ears 13 are arranged on the two plugs, the supporting ears on the two plugs are matched with each other and fixed by connecting bolts 14, and the plugs are fixed by mutual pulling, so that the plugs cannot be loosened and a limiting effect is achieved.

[0036] Referring to Figure 5 The first and second light-reflecting plates each include a mask 15, an adhesive plate 16 and a light-reflecting aluminum plate 17 connected in sequence, and the light-reflecting aluminum plate is arranged towards the photocatalytic column. The first and second light-reflecting plates are each in an arc shape, thereby achieving a light-converging effect. Specifically, the first light-reflecting plate is in a parabolic shape with a focal length of 0.5 m, a major diameter of 1.3 m, a minor diameter of 0.6 m and a curvature of 0.5 m. The lower end of the photocatalytic reaction tube is 0.5 m away from the surface of the first light-reflecting plate, and light is incident on the first light-reflecting plate and finally converges on the photocatalytic column through reflection to a high degree. The second light-reflecting plate above the photocatalytic reaction tube re-converges the unused light on the photocatalytic column through mirror reflection, thereby improving the energy utilization efficiency and further improving the catalytic efficiency.

[0037] Referring to Figure 6 The application further discloses a circulating system adopting the photocatalytic solar-driven carbon dioxide conversion device.

[0038] Specifically, the waste gas is discharged from the factory, filtered by the waste gas pretreatment device a to obtain pure carbon dioxide gas, stored in the storage tank b, and then delivered to the photocatalytic device array c through a switch. The carbon dioxide gas is delivered to the photocatalytic device array c through a pipeline, and the methane gas generated after the reaction is stored in the storage tank d. Finally, the methane gas is delivered to the power plant through a pipeline for power generation and used as industrial fuel for the factory. The generated carbon dioxide can be applied to the system, achieving a carbon cycle and excellent energy-saving and emission-reducing benefits.

[0039] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or transformations made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A photo-actuated solar-driven carbon dioxide conversion device, comprising: The application relates to a photocatalytic reaction tube, which is internally provided with a photocatalytic column, the surface of the photocatalytic column is provided with a spiral part, one end of the photocatalytic column is connected with a rotating motor, the surfaces of two ends of the photocatalytic reaction tube are respectively provided with an air inlet pipeline and an air outlet pipeline, a first light reflection plate is arranged below the photocatalytic reaction tube, and a second light reflection plate is arranged above the photocatalytic reaction tube. The photocatalytic reaction tube, the first light reflection plate and the second light reflection plate are all fixed on a connecting support, the connecting support is fixedly connected with a holder, and a four-quadrant sun tracking sensor is further arranged on the connecting support.

2. The light-by-light solar-driven carbon dioxide conversion device of claim 1, wherein, The two ends of the photocatalytic reaction tube are provided with plugs, a rubber sealing layer is arranged between the plugs and the photocatalytic reaction tube, and the two ends of the photocatalytic column are connected with the corresponding plugs through air-tight bearings.

3. The light-by-light solar-driven carbon dioxide conversion device of claim 2, wherein, At least two lugs are arranged on the two plugs, the lugs on the two plugs are matched with each other and fixed through connecting bolts.

4. The photo-thermal solar driven carbon dioxide conversion apparatus of claim 2, wherein, At least two annular convex parts are arranged on the surface of the rubber sealing layer.

5. The light-by-light solar-driven carbon dioxide conversion device of claim 1, wherein, The first light reflection plate and the second light reflection plate both comprise a mask plate, a bonding plate and a light reflection aluminum plate which are sequentially connected, the light reflection aluminum plate is arranged towards the photocatalytic column, and the first light reflection plate and the second light reflection plate are both in arc structures.

6. The light-by-light solar-driven carbon dioxide conversion device of claim 1, wherein, The photocatalytic column comprises a graphene inner core and a photocatalytic nano film covering the outer layer of the graphene inner core.

7. The light-by-light solar-driven carbon dioxide conversion device of claim 1, wherein, The material of the photocatalytic reaction tube is quartz glass.

8. A circulation system characterized by, The application further discloses a photocatalytic device array and a second storage tank.

9. The circulation system of claim 8, wherein, The application further discloses a photocatalytic device array and a second storage tank.

10. The circulation system of claim 9, wherein, The first storage tank is connected with the air inlet pipeline, and the second storage tank is connected with the air outlet pipeline.

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