Energy supply system

Abstract

The present application relates to an energy supply system, which includes a concentrator, a reaction tube, a storage tank and a pump body. The concentrator and the reaction tube are arranged relatively from top to bottom. The reaction tube includes a first inlet end and a first outlet end. The storage tank includes a second inlet end and a second outlet end. The first inlet end and the second outlet end are connected through a first pipeline, and the first outlet end and the second inlet end are connected through a second pipeline. The third outlet end of the storage tank is used to connect to a hydrogen fuel cell to provide hydrogen for the hydrogen fuel cell. A pump body is provided on the first pipeline, and at least one baffle group is provided in the reaction tube. According to the energy supply system of the present application, the baffle group can disturb the particle suspension entering the reaction tube, thereby improving the dispersion of particles in the suspension per unit volume, effectively alleviating the agglomeration and aggregation of the particle group during the reaction process, and improving the light absorption rate of the suspension, thereby improving the utilization rate of solar energy.

Description

Technical Field

[0001] The present application relates to the field of solar-hydrogen-electricity complementary technology, and in particular to an energy supply system. Background Art

[0002] Converting intermittent, low-energy flux density solar radiation resources into typical secondary energy sources, such as hydrogen energy and electric energy, for efficient use is a key path for my country's current energy transformation. The current more mature green electricity or green hydrogen conversion paths on the market mainly use direct photovoltaic arrays to generate electricity. The main method for preparing hydrogen energy is to directly use photovoltaic direct current or convert it into direct current through grid electricity and then electrolyze water to produce hydrogen. In the laboratory-level research and development process, hydrogen can also be prepared by using solar energy-driven solar photocatalysis, photothermal catalysis or photoelectric water decomposition processes. However, whether it is to obtain green electricity or hydrogen energy, the core step is to use photons of different bands of solar energy for absorption and conversion, so as to obtain the potential difference of local photovoltaic materials, or to obtain photogenerated separated electrons to reduce water molecules to obtain hydrogen. However, due to the inappropriate allocation and utilization of the solar energy spectrum, the efficiency of current solar power generation and hydrogen production reactions is at a low level, and due to the fluctuation characteristics of solar energy itself, the directly generated electricity is very unstable and difficult to supply the normal operation of actual large-scale electrical appliances. In addition, in terms of solar photocatalytic hydrogen production or photothermal hydrogen production, the solar energy spectrum energy utilized is only about 30% at most, and the conversion and absorption of photons at the solar energy end is relatively limited. Therefore, for the overall energy conversion process, the hydrogen energy or electrical energy obtained at the corresponding terminal is also very small. Regardless of the actual industrial utilization and cost-effectiveness, the development of this type of technology is relatively limited.

[0003] Considering the objective spectral distribution characteristics of solar energy, orderly utilizing the energy types such as ultraviolet light, visible light, near-infrared light, infrared light, etc. in the solar spectrum is an important way to improve the low efficiency of the current single solar-driven reaction. To this end, previous studies have mainly developed experimental devices such as photovoltaic power generation coupled with solar thermal supply, concentrated photovoltaic power generation coupled with chemical synthesis gas reaction, etc. Although the improvement of the above technical methods can partially improve the conversion and utilization efficiency of solar energy, it is easy to form particle sedimentation and agglomeration during the reaction process, thereby causing optical absorption fluctuations and non-uniform dispersion of photons on the photovoltaic surface, resulting in a large amount of energy loss in the intermediate process of the reaction process, and a low conversion and utilization rate of solar energy. Summary of the invention

[0004] The present application provides an energy supply system to solve the problem of low solar energy conversion efficiency caused by optical absorption fluctuations caused by particle sedimentation and agglomeration of photothermal catalytic hydrogen production particles and suspension in a reaction tube and non-uniform dispersion of photons on a photovoltaic surface.

[0005] The energy supply system according to the present application includes a concentrator, a reaction tube, a storage tank and a pump body, the concentrator and the reaction tube are arranged opposite to each other from top to bottom, the reaction tube includes a first inlet end and a first outlet end, the storage tank includes a second inlet end and a second outlet end, the first inlet end and the second outlet end are connected through a first pipeline, the first outlet end and the second inlet end are connected through a second pipeline, the third outlet end of the storage tank is used to connect to a hydrogen fuel cell to provide hydrogen for the hydrogen fuel cell, the pump body is provided on the first pipeline, and at least one baffle group is provided in the reaction tube.

[0006] According to the energy supply system of the present application, the baffle plate group is arranged along the length direction of the reaction tube. When there are multiple baffle plate groups, the multiple baffle plate groups are spaced apart from each other, and the baffle plate group includes multiple baffle plates arranged in sequence along the length direction of the reaction tube.

[0007] Optionally, the plurality of baffle groups are divided into two sets, wherein the baffle groups in one set are arranged at the bottom, and the baffle groups in the other set are arranged at the top, and the baffle groups in the two sets are arranged at intervals up and down.

[0008] Optionally, the baffles in the upper set and the baffles in the lower set are staggered with each other.

[0009] Optionally, a plurality of guide holes are provided on the baffle plate.

[0010] Optionally, the baffle plate is provided with a plurality of guide holes, and the diameters of the plurality of guide holes gradually increase from top to bottom.

[0011] According to the energy supply system of the present application, a movable spoiler is provided in the reaction tube, and the spoiler is arranged along the length direction of the reaction tube.

[0012] Optionally, the energy supply system further comprises a driving component, an output end of which is arranged in the reaction tube and connected to the spoiler, and the driving component is used for driving the spoiler to move.

[0013] Optionally, the cross-sectional shape of the reaction tube is a regular hexagon, a group of baffles is provided on the upper wall surface of the reaction tube, another group of baffles is provided on the lower wall surface of the reaction tube, and the spoilers are provided on the upper side walls on both sides of the reaction tube.

[0014] According to the energy supply system of the present application, a first inlet pipe and a first outlet pipe are respectively provided at both ends of the length direction of the reaction tube, the first inlet pipe defines the first inlet end, the first outlet pipe defines the first outlet end, and the cross-sectional areas of the first inlet pipe and the first outlet pipe gradually increase along the axial direction of the reaction tube toward each other.

[0015] The energy supply system according to the present application also includes a concentrated photovoltaic, a DC transformer and an energy storage device. The concentrated photovoltaic is arranged below the reaction tube and opposite to the reaction tube. The concentrated photovoltaic, the DC transformer and the energy storage device are electrically connected in sequence.

[0016] According to the energy supply system of the present application, it also includes a hydrogen fuel cell, which is connected to the output end of the storage tank; and / or the energy supply system also includes a DC electrolyzer, which is connected to the output end of the energy storage device.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0018] The energy supply system provided in the embodiment of the present application comprises a concentrator for concentrating solar energy sources into a reaction tube, and a storage tank for storing a particle suspension for a photothermal catalytic hydrogen production reaction. When the energy supply system is in operation, the particle suspension in the storage tank is pumped by the pump body to flow out through the second outlet port and flow into the reaction tube through the first inlet port. The particle suspension in the reaction tube undergoes a photothermal hydrogen production reaction under the catalytic action of solar energy, and the obtained hydrogen can flow out of the reaction tube through the first outlet port and enter above the suspension in the storage tank through the second inlet port. When the hydrogen fuel cell needs to supplement the output of electrical energy, the hydrogen produced in the storage tank can be supplemented into the hydrogen fuel cell for reaction and converted into electrical energy to power the electrical equipment. The baffle group can disturb the particle suspension entering the reaction tube, thereby improving the dispersion of particles in the suspension per unit volume, effectively alleviating the agglomeration and aggregation of the particle group during the reaction, and improving the light absorption rate of the suspension, thereby improving the utilization rate of solar energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A schematic diagram of an energy supply system provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a radial cross-section of a reaction tube of an energy supply system provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of an axial cross-section of a reaction tube of an energy supply system provided in an embodiment of the present application.

[0025] Description of reference numerals:

[0026] Concentrator 1, reaction tube 2, concentrated photovoltaic 3, DC transformer 4, energy storage device 5, DC electrolyzer 6, hydrogen fuel cell 7, storage tank 8, pump body 9, first inlet pipe 10, first outlet pipe 11, baffle 12, spoiler 13, guide hole 14. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0029] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0030] like Figure 1 and Figure 3 As shown, the energy supply system according to the embodiment of the present application includes a concentrator 1, a reaction tube 2, a storage tank 8 and a pump body 9. The concentrator 1 and the reaction tube 2 are arranged opposite to each other from top to bottom. The reaction tube 2 includes a first inlet end and a first outlet end. The storage tank 8 includes a second inlet end and a second outlet end. The first inlet end and the second outlet end are connected through a first pipeline, and the first outlet end and the second inlet end are connected through a second pipeline. The third outlet end of the storage tank 8 is used to connect to the hydrogen fuel cell 7 to provide hydrogen for the hydrogen fuel cell 7. A pump body 9 is provided on the first pipeline, and at least one baffle group is provided in the reaction tube 2.

[0031] In detail, the concentrator 1 is used to concentrate the solar light source into the reaction tube 2, and the storage tank 8 is used to store the particle suspension of the photothermal catalyst hydrogen production reaction. When the energy supply system is running, the particle suspension in the storage tank 8 is pumped by the pump body 9 to flow out through the second outlet end and flow into the reaction tube 2 through the first inlet end. The particle suspension in the reaction tube 2 undergoes a photothermal hydrogen production reaction under the catalytic action of solar energy, and the obtained hydrogen can flow out of the reaction tube 2 through the first outlet end and enter the top of the suspension in the storage tank 8 through the second inlet end. When the hydrogen fuel cell 7 needs to supplement the power output, the hydrogen produced in the storage tank 8 can be supplemented to the hydrogen fuel cell 7 for reaction and converted into electrical energy to power the electrical equipment. Among them, the baffle group can disturb the particle suspension entering the reaction tube 2, thereby improving the dispersion of particles in the suspension per unit volume.

[0032] It should be noted that the number of baffles 12 and the diameter parameters of the interval width can be adjusted according to the actual surface free energy difference of the reaction particles.

[0033] The pump body 9 provides power for the particle suspension of the photothermal catalytic hydrogen production reaction to enter the reaction tube 2 from the storage tank 8. The working flow rate and start and stop mode of the pump body 9 can be adjusted according to the actual hydrogen production performance.

[0034] In addition, the concentrator 1 and the reaction tube 2 are arranged relative to each other from top to bottom, which can help to gather the solar light source into the reaction tube 2, thereby improving the utilization rate of the solar light source by the reaction tube 2. The radial cross-sectional shape of the reaction tube 2 includes but is not limited to a circle, a triangle, a square, a rectangle, an ellipse, and a polygon (more than four sides).

[0035] In addition, the photothermal catalyst can be a common composite material with obvious solar photothermal response such as Pt-TiO2, Au-TiO2, Cu-TiO2, Pt-C3N4, etc. The concentrator 1 is a linear concentrator 1, and its geometric concentration ratio is between 100-300.

[0036] According to the energy supply system of the embodiment of the present application, it is possible to effectively alleviate the agglomeration and aggregation of the particle group during the reaction process by setting up a baffle group, thereby increasing the light absorption rate of the suspension and thus improving the utilization rate of solar energy.

[0037] like Figure 3 As shown, according to the energy supply system of an embodiment of the present application, the baffle group is arranged along the length direction of the reaction tube 2. When the number of the baffle groups is multiple, the multiple baffle groups are spaced apart from each other, and the baffle group includes multiple baffles 12 arranged in sequence along the length direction of the reaction tube 2.

[0038] In detail, the baffle group is arranged along the length direction of the reaction tube 2, and multiple baffles 12 in each baffle group can be allowed to be arranged in sequence along the length direction of the reaction tube 2, so that the baffles 12 form a turbulent disturbance effect on the flow path of the particle suspension, increase the uniformity of particle distribution in the entire space of the reaction tube 2, and thus achieve stable absorption and separation of the solar energy spectrum.

[0039] Among them, the number of baffles 12 can be set as needed, for example, each baffle group includes three baffles 12, six baffles 12, seven baffles 12, eight baffles 12, nine baffles 12 and twenty baffles 12, etc. The shape of the baffle 12 can be set as needed, for example, it can be set to a circular, square, rectangular, elliptical, triangular and polygonal flat plate shape, etc.

[0040] The multiple baffle plate groups may be spaced such that the multiple baffle plate groups are all arranged on the bottom wall surface of the reaction tube 2; the multiple baffle plate groups may be all arranged on the side wall surface of the reaction tube 2; the multiple baffle plate groups may be all arranged on the top wall surface of the reaction tube 2; or some of the baffle plate groups may be arranged on the bottom wall surface of the reaction tube 2 and some of the baffle plate groups may be arranged on the top wall surface of the reaction tube 2; some of the baffle plate groups may be arranged on the side wall surface of one side of the reaction tube 2 and the other baffle plate groups may be arranged on the side wall surface of the other side of the reaction tube 2.

[0041] like Figure 3 As shown, in some embodiments, the plurality of baffle groups are divided into two sets, wherein the baffle groups of one set are arranged at the bottom, and the baffle groups of the other set are arranged at the top, and the baffle groups of the two sets are arranged at intervals up and down.

[0042] In detail, the multiple baffle groups are divided into two sets, that is, a part of the baffle groups are in one set, and the other part of the baffle groups are in another set. For example, the total number of baffle groups is five, one set includes two baffle groups, and the other set includes three baffle groups. Two baffle groups can be arranged on the lower wall surface of the reaction tube 2, and three baffle groups are arranged on the upper wall surface of the reaction tube 2; three baffle groups can also be arranged on the lower wall surface of the reaction tube 2, and two baffle groups are arranged on the upper wall surface of the reaction tube 2.

[0043] For another example, the total number of baffle groups is six, one set includes three baffle groups, and the other set includes three baffle groups; two baffle groups may be arranged on the upper wall surface of the reaction tube, and four baffle groups may be arranged on the lower wall surface of the reaction tube, or four baffle groups may be arranged on the upper wall surface of the reaction tube, and two baffle groups may be arranged on the lower wall surface of the reaction tube.

[0044] It is understandable that the two baffle groups are arranged at intervals up and down, which can intensify the turbulence of the particle suspension on the flow path, and is more conducive to preventing the aggregation of particle groups. At the same time, after the particle groups have aggregated, the stirring capacity in the flow process is increased, so as to disperse the agglomerated particle groups, increase the uniformity of particle distribution in the entire space of the reaction tube 2, increase the number of light-absorbing active sites on the particle surface, and ensure the continuation of the high-efficiency performance of photothermal catalytic hydrogen production in the reaction tube 2. At the same time, the storage tank 8 is half-filled with the particle suspension, so that there is enough space to accommodate the hydrogen prepared after the reaction.

[0045] like Figure 3 As shown, in some embodiments, the baffles 12 in the upper set and the baffles 12 in the lower set are staggered from each other.

[0046] It can be understood that the baffles 12 in the upper set are arranged in the vertical direction, and the baffles 12 in the lower set are arranged in the vertical direction, and along the length direction of the reaction tube 2, the baffles 12 located above and the adjacent baffles 12 located below are staggered with each other. This can increase more turbulence during the flow of the particle suspension, extend the flow path of a single particle, thereby increasing the number of light-absorbing active sites on the particle surface, making it easier to react fully, and thereby improving the photothermal catalytic hydrogen production performance.

[0047] like Figure 2 and Figure 3 As shown, in some embodiments, a plurality of guide holes 14 are provided on the baffle plate 12. When the particle suspension flows along the length direction of the reaction tube 2, some particles will pass through the guide holes 14 when passing through the baffle plate 12. At this time, the guide holes 14 can disperse the agglomerated particles that flow here after a period of reaction time, slow down the current situation of particle sedimentation and agglomeration, increase the distribution uniformity of particles in the entire space of the disturbable reaction tube 2, increase the number of light-absorbing active sites on the particle surface, avoid the decline of photothermal catalytic hydrogen production performance in the reaction tube 2, and thus achieve stable absorption and segmentation of the solar spectrum.

[0048] The guide holes 14 may be distributed at intervals according to a specific rule, for example, arranged in one or more rows from top to bottom on the baffle plate 12 .

[0049] In addition, the cross-sectional shape of the guide hole 14 includes but is not limited to a circle, a square, a rectangle, an ellipse, a triangle, a polygon, etc.

[0050] like Figure 2 As shown, in some embodiments, the baffle plate 12 is provided with a plurality of guide holes 14, and the diameters of the plurality of guide holes 14 gradually increase from top to bottom. It is understandable that due to the effect of gravity, the particles are deposited more seriously as they go downward, resulting in a larger mass. Therefore, the plurality of guide holes 14 are provided with a diameter gradually increasing from top to bottom to avoid the possibility that the guide holes 14 are too small in diameter so that the mass cannot pass through at all, resulting in the inability to play the role of guiding and breaking up, and thus causing an obstruction.

[0051] Among them, parameters such as the diameter of the flow-limiting hole can be adjusted according to the difference in surface free energy of the actual reaction particles.

[0052] The plurality of guide holes 14 are arranged in one or more rows from top to bottom on the baffle plate 12 .

[0053] like Figure 2As shown, according to the energy supply system of the embodiment of the present application, a movable spoiler 13 is provided in the reaction tube 2, and the spoiler 13 is arranged along the length direction of the reaction tube 2. In this way, the flowing particle suspension can be actively disturbed by controlling the movement of the spoiler 13, thereby enhancing the turbulence effect of the particle suspension, extending the movement path of the particle suspension in the reaction tube 2, and increasing the contact time of the particle suspension with the solar energy spectrum.

[0054] In addition, when the experiment uses photothermal catalytic reaction particles with higher surface energy, the spoiler 13 can compensate for the non-uniformity and consistency of photons transmitted on the surface of the concentrated photovoltaic 3 caused by insufficient flow turbulence intensity, thereby improving the stability of the system energy supply.

[0055] The spoiler 13 may move in the up-down direction of the reaction tube 2, in the left-right direction of the radial cross section of the reaction tube 2, or in the length direction of the reaction tube 2, for example, repeatedly moving against and along the flow direction of the suspension.

[0056] In addition, the movement of the spoiler 13 can be powered manually or by a mechanical power source. Similarly, the number of spoilers 13, the spacing between the spoilers 13 and the baffle 12, and the location of the spoilers 13 can also be set according to actual needs.

[0057] like Figure 2 As shown, in some embodiments, the spoiler 13 can move along the radial direction of the reaction tube 2. In this way, the movable range of the spoiler 13 can be increased, the effect of forming turbulent disturbance of the flowing particle suspension in the radial direction of the flow is enhanced, and the uniformity of particle distribution in the entire space of the reaction tube 2 is increased, thereby achieving stable absorption and segmentation of the solar energy spectrum.

[0058] For example, in Figure 2 In the embodiment shown in , the spoiler 13 can intermittently compress the particle suspension along the AA or BB direction according to the actual status of particle sedimentation and agglomeration. The AA or BB direction is perpendicular to the upper side wall of the reaction tube 2.

[0059] In some embodiments, the energy supply system further includes a driving component, the output end of which is disposed in the reaction tube 2 and connected to the spoiler 13 , and the driving component is used to drive the spoiler 13 to move.

[0060] Specifically, the driving component is used to drive the spoiler 13 to move in the reaction tube 2. The driving component provides power for the movement of the spoiler 13. The movement strategy of the spoiler 13 can be accurately controlled according to the actual status of particle sedimentation and agglomeration, thereby improving the uniformity of particle distribution in the entire space of the reaction tube 2, thereby achieving stable absorption and segmentation of the solar energy spectrum.

[0061] For example, in a specific embodiment, the spoiler 13 may be driven to intermittently compress the particle suspension according to the actual status of particle sedimentation and agglomeration.

[0062] The power providers of the driving components include but are not limited to cylinders and electric motors.

[0063] In some embodiments, the cross-sectional shape of the reaction tube 2 is a regular hexagon, a group of baffles are provided on the upper wall of the reaction tube 2, another group of baffles are provided on the lower wall of the reaction tube 2, and spoilers 13 are provided on the upper side walls on both sides of the reaction tube 2.

[0064] It can be understood that setting the cross-sectional shape of the reaction tube 2 to a regular hexagon is conducive to the symmetrical setting of the baffle group, so that the particle suspension can pass through all places at a uniform speed and avoid condensation caused by deposition. At the same time, it is also beneficial to have symmetrical space to set the spoilers 13 on both sides after the baffle group is installed, so that the suspension in the reaction tube 2 can be disturbed by the symmetrically set spoilers 13, thereby improving the uniformity of the particle suspension.

[0065] In some embodiments, the diameter of the inscribed circle of the reaction tube 2 is 10 cm, the aperture range of the guide hole 14 is 1-10 mm, for example: 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm and 10 mm, etc.; the stroke range of the spoiler 13 is 1-10 mm, for example: 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm and 10 mm, etc.

[0066] According to the energy supply system of the embodiment of the present application, a first inlet pipe 10 and a first outlet pipe 11 are respectively provided at both ends of the length direction of the reaction tube 2, the first inlet pipe 10 defines a first inlet end, the first outlet pipe 11 defines a first outlet end, and the cross-sectional areas of the first inlet pipe 10 and the first outlet pipe 11 gradually increase in the direction of approaching each other along the axial direction of the reaction tube 2.

[0067] It can be understood that according to the continuity equation ((A1v1= A2v2)), A1 and A2 are cross-sectional areas, v1 and v2 are flow velocities, and an increase in diameter can reduce the flow rate. The cross-sectional area of ​​the first inlet pipe 10 gradually increases along the axial direction of the reaction tube 2 toward the direction in which the first inlet pipe 10 and the first outlet pipe 11 approach each other, which can extend the residence time of the particle suspension in the reaction tube 2, thereby allowing the particle suspension to fully react. The cross-sectional area of ​​the first outlet pipe 11 gradually increases along the axial direction of the reaction tube 2 toward the direction in which the first inlet pipe 10 and the first outlet pipe 11 approach each other, which can gradually increase the flow rate and gradually enhance the turbulence intensity in the process of the particle suspension flowing out of the reaction tube 2, thereby allowing the particle suspension to fully react.

[0068] like Figure 1 As shown, the energy supply system according to the embodiment of the present application also includes a concentrated photovoltaic 3, a DC transformer 4 and an energy storage device 5. The concentrated photovoltaic 3 is arranged below the reaction tube 2 and opposite to the reaction tube 2. The concentrated photovoltaic 3, the DC transformer 4 and the energy storage device 5 are electrically connected in sequence.

[0069] In detail, after the solar energy passes through the reaction tube 2, part of the visible light and infrared light of the reaction tube 2 are radiated to the concentrated photovoltaic 3 to generate DC power. The power is stored in the energy storage device 5 through the voltage conversion of the DC transformer 4, thereby providing power to the end user. The use of concentrated photovoltaic 3 can improve the utilization rate of solar energy. At the same time, the turbulence effect on the particle suspension in the reaction tube 2 can effectively alleviate the agglomeration and aggregation of the particle group during the reaction process, and improve the light absorption rate of the suspension and the uniformity of the photon distribution on the concentrated photovoltaic 3. Among them, the energy storage device 5 can store the prepared electric energy for a long time, so as to facilitate the use of the end user at any time in the later stage.

[0070] According to the energy supply system of the embodiment of the present application, the reaction tube 2 can cooperate with the concentrated photovoltaic 3 to achieve accurate segmentation and distribution of the solar energy spectrum while completing its own photothermal hydrogen production reaction. At the same time, the reaction tube 2 is provided with a baffle 12 and a flow limiting hole, which can effectively improve the dispersion of the particle group of the photothermal catalytic hydrogen production particle suspension during the reaction process and avoid particle sedimentation and uneven optical distribution caused by processes such as sedimentation and agglomeration.

[0071] The solar energy described in this application is direct solar energy radiated from outdoor solar energy to the earth's surface.

[0072] like Figure 1 As shown, the energy supply system according to the embodiment of the present application further includes a hydrogen fuel cell 7, which is connected to the output end of the storage tank 8.

[0073] In detail, a hydrogen fuel cell 7 is arranged in the energy supply system, and when the end user needs electric energy output, the prepared hydrogen energy can be partially converted into electric energy for utilization.

[0074] like Figure 1 As shown, in some embodiments, the energy supply system further includes a DC electrolyzer 6, which is connected to the output end of the energy storage device 5. The electric energy in the energy storage device 5 can be converted into hydrogen energy for utilization through the electrolysis of the DC electrolyzer 6 according to the requirements of the end user, and can be complementary to the electric energy directly generated by the hydrogen fuel cell 7.

[0075] According to the energy supply system of the embodiment of the present application, by reasonably and actively controlling the two-phase flow of photothermal catalytic hydrogen production particles and suspension in the tube, the negative effects such as optical absorption fluctuations caused by particle sedimentation and agglomeration and non-uniform dispersion of photons on the photovoltaic surface are effectively avoided, the stability and reliability of the system's combined supply of hydrogen energy and electric energy are improved, and the orderly frequency division and distribution of the solar energy spectrum are achieved. At the same time, it is helpful for relevant technical personnel and scientific researchers to study the influence of the two-phase flow mechanism of micro-nano reaction particle working fluid and reaction liquid on the internal optical characteristics of the system and the active regulation mechanism, summarize relevant experimental experience, and improve the reliability of the system in industrial amplification and engineering applications.

[0076] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0077] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0078] The above is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. An energy supply system, characterized in that: It includes a concentrator, a reaction tube, a storage tank and a pump body, the concentrator and the reaction tube are arranged opposite to each other from top to bottom, the reaction tube is used for providing a particle suspension with a photothermal hydrogen production reaction under the catalytic action of solar energy, the reaction tube includes a first inlet end and a first outlet end, the storage tank includes a second inlet end and a second outlet end, the first inlet end and the second outlet end are connected through a first pipeline, the first outlet end and the second inlet end are connected through a second pipeline, the third outlet end of the storage tank is used to connect to a hydrogen fuel cell to provide hydrogen for the hydrogen fuel cell, the pump body is arranged on the first pipeline, at least one baffle plate group is arranged in the reaction tube, the baffle plate group is arranged along the length direction of the reaction tube, when the number of the baffle plate groups is multiple, the multiple baffle plate groups are spaced apart from each other, and the baffle group includes A plurality of baffles are arranged in sequence along the length direction of the reaction tube, the baffles are provided with a plurality of guide holes, and the diameters of the plurality of guide holes gradually increase from top to bottom. A movable baffle is provided in the reaction tube, and the baffle is arranged along the length direction of the reaction tube. The cross-sectional shape of the reaction tube is a regular hexagon. A group of baffle groups is provided on the upper wall surface of the reaction tube, and another group of baffle groups is provided on the lower wall surface of the reaction tube. The upper side walls on both sides of the reaction tube are provided with the baffles. A first inlet pipe and a first outlet pipe are respectively provided at both ends of the reaction tube in the length direction. The first inlet pipe defines the first inlet end, and the first outlet pipe defines the first outlet end. The cross-sectional areas of the first inlet pipe and the first outlet pipe gradually increase along the axial direction of the reaction tube toward each other.

2. The energy supply system according to claim 1, characterized in that: The plurality of baffle groups are divided into two sets, wherein the baffle groups in one set are arranged at the bottom, and the baffle groups in the other set are arranged at the top, and the baffle groups in the two sets are arranged at intervals up and down.

3. The energy supply system according to claim 2, characterized in that: The baffles in the upper set and the baffles in the lower set are staggered with each other.

4. The energy supply system according to claim 1, characterized in that: It also includes a driving component, the output end of which is arranged in the reaction tube and connected to the spoiler, and the driving component is used to drive the spoiler to move.

5. The energy supply system according to claim 1, characterized in that: It also includes a concentrated photovoltaic, a DC transformer and an energy storage device. The concentrated photovoltaic is arranged below the reaction tube and opposite to the reaction tube. The concentrated photovoltaic, the DC transformer and the energy storage device are electrically connected in sequence.

6. The energy supply system according to claim 5, characterized in that: It also includes a hydrogen fuel cell, which is connected to the output end of the storage tank; and / or, it also includes a direct current electrolyzer, which is connected to the output end of the energy storage device.

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