Full-spectrum solar frequency-division heat collector, system and working method of full-spectrum solar frequency-division heat collector

Abstract

The invention belongs to the field of solar energy utilization, and discloses a full-spectrum solar frequency division heat collector, a system and a working method of the full-spectrum solar frequency division heat collector. Four glass layers are arranged in a shell from top to bottom to form two vacuum cavities, and a closed cavity structure containing frequency division fluid is clamped. The two vacuum cavities are isolated through double-layer vacuum, so that the heat conduction loss of gas is remarkably reduced, the vacuum degree limit of a single vacuum cavity can be broken through under the synergistic effect of the double vacuum layers, and convection and conduction heat dissipation are effectively inhibited; the middle third cavity carries out wavelength selective absorption and heat transfer on sunlight through the frequency division fluid, and spectrum frequency division utilization is achieved. The heat collector has the advantages that the three-layer thermal resistance barrier and the frequency division function are coupled, the number of the vacuum layers is increased, the heat insulation performance can be enhanced, the total heat dissipation loss is reduced, the overall mechanical strength is improved through the four-layer glass composite structure, the system efficiency is greatly improved, and the reliability and the industrial application potential of a full-spectrum system are improved.

Description

Technical Field

[0001] This invention belongs to the field of solar energy utilization, specifically relating to a full-spectrum solar frequency divider collector, system, and its working method. Background Technology

[0002] Solar energy, as a clean and renewable energy source, plays a crucial role in the global energy transition. Full-spectrum solar energy utilization technology aims to improve overall efficiency by precisely matching different bands of the solar spectrum with the most suitable energy conversion methods through spectral dispersion. Among these, frequency-division co-generation technology is a typical application of full-spectrum solar energy utilization technology. In this technology, frequency-division fluid plays a core role, using visible light for photovoltaic power generation and infrared light for high-temperature heat collection, giving the system high overall efficiency.

[0003] However, the double-layered vacuum glass collector tubes widely used in conventional full-spectrum solar frequency division utilization systems have several drawbacks. Firstly, the glass tubes themselves have limited strength, making it difficult to achieve a high vacuum level in the vacuum chamber. At lower vacuum levels, heat is easily lost through gas conduction, resulting in significant heat dissipation losses and hindering further improvements in overall system efficiency. Secondly, since full-spectrum solar frequency division utilization systems are often installed in open areas with complex and variable environments, the low-strength glass is highly susceptible to breakage in the face of severe weather such as sandstorms and hail, or accidental impacts. Glass breakage not only damages the collectors and affects the normal operation of the system but also poses significant safety risks and substantially increases the system's maintenance costs. This significantly limits the large-scale industrial application of solar frequency division utilization systems.

[0004] It is evident that traditional double-layer vacuum glass collector tubes, due to their structure, have difficulty achieving a high degree of vacuum, resulting in significant heat loss and reducing the overall efficiency of the full-spectrum solar energy frequency division utilization system. Summary of the Invention

[0005] This invention provides a full-spectrum solar frequency divider collector, system, and its operating method to solve the technical problem that traditional double-layer vacuum glass collector tubes, due to their structure, are difficult to achieve a high vacuum level, resulting in severe heat loss and reduced overall efficiency of the full-spectrum solar frequency divider utilization system.

[0006] To achieve the above objectives, the present invention employs the following technical content:

[0007] A full-spectrum solar frequency divider collector includes a housing;

[0008] The housing contains, from top to bottom, a first glass layer, a second glass layer, a third glass layer, and a fourth glass layer;

[0009] A first closed cavity is formed between the first glass layer and the second glass layer, and the first closed cavity is a vacuum cavity;

[0010] A second sealed cavity is formed between the third glass layer and the fourth glass layer, and the second sealed cavity is a vacuum cavity;

[0011] A third closed cavity is formed between the second glass layer and the third glass layer;

[0012] The third enclosed cavity is used to contain the frequency-divided fluid. One end of the third enclosed cavity is provided with a frequency-divided fluid inlet, and the other end is provided with a frequency-divided fluid outlet.

[0013] Furthermore, the first glass layer, the second glass layer, the third glass layer, and the fourth glass layer are all made of high-transparency glass.

[0014] Furthermore, the surfaces of the first glass layer, the second glass layer, the third glass layer, and the fourth glass layer are all coated with a nano-coating.

[0015] Furthermore, the nano-coating is made of nano-titanium oxide or nano-zirconia material.

[0016] Furthermore, a gradient refractive index multilayer film is deposited on the lower surface of the second glass layer, wherein the gradient refractive index multilayer film is formed by alternating layers of nano-titanium oxide or nano-zirconia material to form a gradient refractive structure; and a microprism array is integrated on the upper surface of the third glass layer.

[0017] Furthermore, the third enclosed cavity adopts a fractal tree-shaped flow channel design, and the width of the flow channel gradually decreases from the frequency-divided fluid inlet to the frequency-divided fluid outlet.

[0018] Furthermore, the housing, the frequency-divided fluid inlet, and the frequency-divided fluid outlet are all made of metal.

[0019] A method for operating a full-spectrum solar frequency divider collector includes:

[0020] Sunlight enters the full-spectrum solar frequency divider collector through the first glass layer and then enters the first enclosed cavity between the first and second glass layers.

[0021] The frequency-divided fluid enters the third closed cavity formed between the second and third glass layers from the frequency-divided fluid inlet at one end of the third closed cavity;

[0022] When sunlight enters the third enclosed cavity, the frequency-splitting fluid divides the sunlight according to the absorption characteristics of different wavelengths of light, and converts the energy of long wavelengths of sunlight into heat energy. The frequency-splitting fluid carrying the heat energy flows out from the frequency-splitting fluid outlet.

[0023] The second enclosed cavity formed between the third and fourth glass layers can reduce heat loss to the outside through heat conduction.

[0024] A full-spectrum solar frequency division utilization system includes the aforementioned full-spectrum solar frequency division collector, and further includes:

[0025] The photovoltaic power generation unit is used to receive sunlight after it has been divided by the full-spectrum solar frequency collector and to convert the sunlight into photoelectric light.

[0026] The photothermal utilization unit is used to exchange heat between the input frequency-divided fluid and the working medium, thereby realizing the transfer and utilization of heat.

[0027] Furthermore, the photothermal utilization unit employs a heat exchanger;

[0028] The photovoltaic power generation unit is connected to an energy storage unit for storing excess electrical energy converted from photovoltaic power.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] This invention provides a full-spectrum solar frequency-division collector, which forms two vacuum chambers by arranging four glass layers from top to bottom within the casing, sandwiching a closed chamber containing a frequency-division fluid. The two vacuum chambers, through double-layer vacuum isolation, significantly reduce gas heat conduction loss. The synergistic effect of the two vacuum layers can overcome the vacuum limit of a single vacuum chamber, effectively suppressing convection and conduction heat dissipation. The middle third chamber uses the frequency-division fluid to selectively absorb and transfer sunlight at wavelengths, achieving frequency-division utilization of the spectrum. This collector possesses the advantages of a three-layer thermal barrier coupled with frequency-division functionality. The increased number of vacuum layers enhances insulation performance and reduces total heat loss, while the composite structure of the four glass layers improves overall mechanical strength. Simultaneously, the independently designed frequency-division fluid circulation channel avoids the risk of media leakage due to glass breakage in traditional structures, significantly improving system efficiency and enhancing the reliability and industrial application potential of the full-spectrum system.

[0031] Preferably, in this invention, high-transmittance glass is used to ensure efficient transmission of sunlight across all wavelengths, reduce the reflection and absorption loss of incident light in the glass layer, and allow more light energy to enter the frequency-dividing fluid cavity and the bottom photovoltaic unit, thereby improving the overall photothermal-photoelectric conversion efficiency of the system.

[0032] Preferably, in this invention, the nano-coating can enhance the anti-reflection and self-cleaning properties of the glass surface, reduce surface dust adhesion, and at the same time optimize the frequency division effect and improve the photothermal conversion efficiency through selective absorption / transmission modulation.

[0033] Preferably, in this invention, the nano-titanium oxide / zirconia coating has both high hardness and photocatalytic properties, which can decompose organic pollutants while improving wear resistance, maintaining the long-term stability of glass transmittance, and reducing maintenance requirements.

[0034] Preferably, in this invention, the gradient refractive index film system achieves broadband antireflection through the gradient refractive structure, while the microprism array redistributes the transmitted light, making the frequency-divided fluid more uniformly heated and avoiding local overheating.

[0035] Preferably, in this invention, the fractal tree-shaped flow channel increases the heat transfer area through biomimetic design, and the gradually narrowing width design accelerates the fluid velocity, enhances the turbulent heat transfer effect, and improves the temperature uniformity of the frequency-divided fluid.

[0036] Preferably, in this invention, the metal shell and interface provide mechanical support and sealing protection, extending the service life of the vacuum chamber; at the same time, the rapid thermal conductivity of the metal can assist in heat dissipation and reduce the risk of thermal stress cracking of the glass layer.

[0037] This invention also provides a method for operating a full-spectrum solar frequency-dividing collector. Based on the aforementioned full-spectrum solar frequency-dividing collector, the method achieves efficient frequency-divided utilization of sunlight through the coordinated operation of a four-layer glass structure. Incident sunlight first passes through the first glass layer into the first sealed cavity, and then enters the third sealed cavity to interact with the frequency-dividing fluid. The frequency-dividing fluid, based on its wavelength-selective absorption characteristics, converts long-wavelength light energy into heat energy while allowing short-wavelength light to continue to transmit. This operating mode achieves precise spectral separation and tiered energy utilization. The vacuum design of the second sealed cavity effectively blocks the outward conduction path of heat, significantly reducing heat loss. The entire operating process fully utilizes the advantages of the multi-layer structure for photothermal conversion, ensuring both photothermal conversion efficiency and system thermal stability. Simultaneously, the circulation of the frequency-dividing fluid achieves continuous energy output, significantly improving the overall utilization efficiency of full-spectrum solar energy.

[0038] This invention also provides a full-spectrum solar frequency-division utilization system, including the aforementioned full-spectrum solar frequency-division collector, coupled with a photovoltaic power generation unit and a photothermal utilization unit, constructing a spectral hierarchical utilization system. The frequency-division collector selectively absorbs mid- and far-infrared thermal energy through a frequency-division fluid in a third enclosed cavity, transmitting visible and near-infrared light to the photovoltaic unit, achieving precise spectral splitting. The photovoltaic unit utilizes high-energy short-wave power generation, while the photothermal unit recovers long-wave thermal energy through heat exchange between the frequency-division fluid and the working medium, forming a photoelectric-photothermal synergistic conversion link. This system breaks through the traditional single utilization mode. The combined action of the frequency-division fluid absorption section and the vacuum layer reduces heat loss at the photothermal end, while the spectral purity transmitted to the photovoltaic unit is improved, increasing the photoelectric conversion efficiency. At the same time, the impact resistance of the four-layer composite glass structure and the independent double vacuum cavity ensures long-term stable operation of the system in harsh environments. Combined with the sealed design of the frequency-division fluid circulation and heat exchange module, the risk of medium leakage is reduced, improving the overall photothermal efficiency and comprehensive energy utilization rate of the system, reducing operation and maintenance costs, and significantly improving the practicality and economy of the full-spectrum utilization system.

[0039] Preferably, in this invention, the heat transfer efficiency between the frequency-divided fluid and the working medium is enhanced by a heat exchanger. The long-wave heat energy absorbed by the frequency-divided fluid is quickly transferred to the heat storage medium by a high-efficiency heat exchange structure, which reduces the thermal resistance of the fluid circulation and reduces the temperature drop along the flow path, thereby improving the heat recovery rate at the photovoltaic end. The photovoltaic unit is equipped with an energy storage unit. By dynamically adjusting the charging and discharging strategy, the surplus electricity generated by the photovoltaic power generation is stored and the output fluctuations are smoothed, which solves the problem of solar intermittency, realizes continuous power supply day and night, avoids curtailment loss, and improves the utilization rate of electricity. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of a full-spectrum solar frequency divider collector provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of a full-spectrum solar frequency divider collector provided in an embodiment of the present invention;

[0042] Figure 3 This is a structural block diagram of a full-spectrum solar energy frequency division utilization system provided in an embodiment of the present invention.

[0043] Figure label:

[0044] 1. First glass layer; 2. Second glass layer; 3. Third glass layer; 4. Fourth glass layer; 5. Frequency-divided fluid inlet; 6. Frequency-divided fluid outlet; 7. Shell;

[0045] 100. Full-spectrum solar frequency collector; 101. Photovoltaic power generation unit; 102. Solar thermal utilization unit. Detailed Implementation

[0046] To make the technical problems solved by the present invention, the technical solutions, and the beneficial effects clearer, the following specific embodiments provide a further detailed description of the present invention. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of the invention.

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0052] As mentioned in the background section, the double-layered vacuum glass collector tubes used in conventional full-spectrum solar frequency division systems suffer from poor vacuum levels in the vacuum chamber due to the limited strength of the glass tubes, resulting in significant heat loss and hindering further improvements in the overall system efficiency. Furthermore, full-spectrum solar frequency division systems are typically used in open areas, and low-strength glass is prone to breakage, posing a significant safety risk and increasing the system's maintenance costs in the long run.

[0053] To address the aforementioned issues, this embodiment provides a full-spectrum solar frequency divider collector. This solution improves the structure of the frequency divider collector, increases the vacuum level of the vacuum chamber, and enhances the scratch and impact resistance of the transparent glass. This not only significantly reduces heat loss and improves the overall system efficiency but also helps reduce the system's later maintenance costs, providing a solution for large-scale industrial applications.

[0054] like Figure 1 and Figure 2 As shown, this embodiment provides a full-spectrum solar frequency divider collector, including a housing 7. Within the housing 7, a first glass layer 1, a second glass layer 2, a third glass layer 3, and a fourth glass layer 4 are sequentially arranged from top to bottom.

[0055] The first sealed cavity is formed between the first glass layer 1 and the second glass layer 2. This first sealed cavity is a vacuum cavity, which effectively reduces heat loss caused by thermal convection. The second sealed cavity is formed between the third glass layer 3 and the fourth glass layer 4, which is also a vacuum cavity, further reducing the possibility of heat loss to the outside through thermal conduction. The third sealed cavity is formed between the second glass layer 2 and the third glass layer 3. This cavity is used to contain the frequency-divided fluid. A frequency-divided fluid inlet 5 is provided at one end of the third sealed cavity, and a frequency-divided fluid outlet 6 is provided at the other end to facilitate the inflow and outflow of the frequency-divided fluid.

[0056] As a preferred embodiment, the first glass layer 1, the second glass layer 2, the third glass layer 3, and the fourth glass layer 4 are all made of high-transmittance glass, ensuring that sunlight can efficiently pass through each glass layer and enter the interior of the solar collector. Simultaneously, the surface of each glass layer is coated with a nano-coating. In this embodiment, the nano-coating is made of nano-titanium oxide material. The nano-coating not only improves the absorption efficiency of sunlight by the glass layers but also enhances the wear resistance and self-cleaning properties of the glass.

[0057] In another preferred embodiment, the lower surface of the second glass layer 2 is coated with a multilayer film system with a gradient refractive index. This multilayer film system uses alternating layers of nano-titanium oxide to form a gradient refractive structure. A microprism array is integrated on the upper surface of the third glass layer 3. This structural design can more effectively refract and guide sunlight entering the third enclosed cavity, improving the absorption and frequency division effect of the frequency-dividing fluid on light of different wavelengths.

[0058] In another preferred embodiment, the third enclosed cavity employs a fractal tree-like flow channel design, with the channel width gradually decreasing from the frequency-distributed fluid inlet 5 to the frequency-distributed fluid outlet 6. This flow channel design allows the frequency-distributed fluid to gradually increase its flow velocity during flow, resulting in more thorough contact and interaction with sunlight, thereby improving the absorption and conversion efficiency of long-wavelength light energy in sunlight.

[0059] As another preferred embodiment, the shell 7, the frequency-divided fluid inlet 5, and the frequency-divided fluid outlet 6 are all made of metal. Metal has good strength and thermal conductivity, which can ensure the structural stability of the collector and is also conducive to heat transfer.

[0060] This embodiment is based on the full-spectrum solar frequency divider collector in Embodiment 1, and its operation method is as follows:

[0061] Sunlight enters the full-spectrum solar frequency collector through the first glass layer 1. Since the first glass layer 1 is made of high-transparency glass and has a nano-coating on its surface, it can efficiently allow sunlight to enter the first closed cavity between the first glass layer 1 and the second glass layer 2. Because the first closed cavity is a vacuum cavity, the energy loss of sunlight during transmission is reduced.

[0062] The frequency-dividing fluid enters the third sealed cavity formed between the second glass layer 2 and the third glass layer 3 through the frequency-dividing fluid inlet 5 at one end of the third sealed cavity. When sunlight enters the third sealed cavity, the frequency-dividing fluid divides the sunlight according to the absorption characteristics of different wavelengths of light. In this embodiment, the frequency-dividing fluid can convert the energy of long-wavelength light in sunlight into heat energy. The frequency-dividing fluid carrying the heat energy flows out through the frequency-dividing fluid outlet 6, thus completing the collection of long-wavelength light energy in sunlight.

[0063] During this process, the second closed cavity formed between the third glass layer 3 and the fourth glass layer 4, being a vacuum cavity, can greatly reduce the loss of heat to the outside through heat conduction, ensuring that the heat inside the collector can be effectively utilized.

[0064] In this embodiment, a full-spectrum solar frequency divider collector can be applied to a Fresnel-type full-spectrum solar frequency divider utilization system. The first glass layer 1, the second glass layer 2, the third glass layer 3, and the fourth glass layer 4 all use Fresnel lenses, which can focus sunlight from a large area to a smaller area, thereby improving the concentration of light energy.

[0065] like Figure 3 As shown, this embodiment also provides a full-spectrum solar frequency division utilization system, including the full-spectrum solar frequency division collector 100 described in Embodiment 1, and also includes a photovoltaic power generation unit 101 and a solar thermal utilization unit 102.

[0066] The photovoltaic power generation unit 101 is used to receive sunlight after it has been divided by the full-spectrum solar frequency collector 100, and to convert the sunlight into electricity. In practical applications, the photovoltaic power generation unit 101 can use high-efficiency photovoltaic panels to convert the frequency-divided sunlight suitable for photoelectric conversion into electrical energy.

[0067] The solar thermal utilization unit 102 employs a heat exchanger to exchange heat between the input frequency-divided fluid and the working medium, thereby realizing the transfer and utilization of heat. For example, the heat exchanger can be applied to hot water supply systems, heating systems, etc., to transfer the heat energy carried by the frequency-divided fluid to the working medium to meet actual heating needs.

[0068] In addition, the photovoltaic power generation unit 101 is connected to an energy storage unit. When the photovoltaic conversion generates excess electrical energy, the energy storage unit can store this electrical energy for use when there is insufficient sunlight or high electricity demand, thereby improving the stability and reliability of the solar energy utilization system.

[0069] As can be seen, this embodiment proposes a full-spectrum solar frequency divider collector. The vacuum degree of the collector's vacuum chamber can be further improved, and the high-transparency glass is treated with nanomaterials and coating technology to enhance its scratch resistance and impact resistance. This not only significantly reduces heat loss and improves the overall system efficiency, but also helps to reduce the system's later maintenance costs, providing ideas for large-scale industrial applications.

[0070] In this embodiment, the full-spectrum solar energy frequency division utilization system is implemented in practice, and the specific implementation is as follows:

[0071] For a large commercial complex, the full-spectrum solar frequency-division utilization system provided in this embodiment is adopted. This system includes a full-spectrum solar frequency-division collector 100, whose shell 7, frequency-division fluid inlet 5, and frequency-division fluid outlet 6 are all made of metal, ensuring the collector's robustness and durability. The shell 7 contains, from top to bottom, a first glass layer 1, a second glass layer 2, a third glass layer 3, and a fourth glass layer 4, all made of high-transparency glass and coated with a nano-coating of nano-titanium oxide. Simultaneously, the lower surface of the second glass layer 2 is coated with a multilayer film system with a gradient refractive index, and the upper surface of the third glass layer 3 integrates a microprism array, significantly improving the utilization efficiency of sunlight.

[0072] The third enclosed cavity employs a fractal tree-like flow channel design, with the channel width gradually decreasing from the frequency-dividing fluid inlet 5 to the frequency-dividing fluid outlet 6, ensuring that the frequency-dividing fluid fully absorbs the energy of long-wavelength light in sunlight. The photovoltaic power generation unit 101 is connected to the energy storage unit to store excess electrical energy converted from photovoltaic power. The solar thermal utilization unit 102 uses a high-efficiency heat exchanger to provide hot water, heating, and other services for commercial buildings.

[0073] For remote mountainous areas with inconvenient power supply, a full-spectrum solar frequency-divided utilization system was built. The full-spectrum solar frequency-divided collector 100 is installed on the roof of residential houses. The vacuum cavity formed between the first glass layer 1 and the second glass layer 2, and between the third glass layer 3 and the fourth glass layer 4, effectively reduces heat loss and adapts to the large temperature difference between day and night in mountainous environments.

[0074] The frequency-dividing fluid divides the sunlight in the third closed cavity. The frequency-dividing fluid carrying heat energy flows out through the frequency-dividing fluid outlet 6 and provides hot water and heating to residents through the heat exchanger of the solar thermal utilization unit 102. The frequency-divided sunlight is converted into electricity by the photovoltaic power generation unit 101 to meet the residents' daily lighting, appliance use and other electricity needs. Excess electricity is stored in the energy storage unit.

[0075] The application of this system has solved the problems of electricity and heat supply for residents in remote areas. Compared with traditional diesel power generation and other methods, energy costs are reduced by about 60%, and it is cleaner and more environmentally friendly, significantly improving the quality of life for residents.

[0076] Therefore, the present invention provides a full-spectrum solar frequency-division collector with the following advantages:

[0077] First, compared to traditional double-layer vacuum glass tubes, the novel full-spectrum solar frequency-dividing collector proposed in this invention can further improve the vacuum level of the vacuum chamber, reduce heat loss, and improve the overall system efficiency. Furthermore, this collector is also easy to insulate, further reducing system heat loss.

[0078] Secondly, the frequency-division solar collector proposed in this invention utilizes nanomaterials and coating technology to coat the surface of high-transparency glass with nano-titanium oxide, zirconium oxide and other materials, which greatly improves the scratch resistance and impact resistance of the glass, reduces the risk of glass breakage, and helps to reduce the later maintenance cost of the system.

[0079] The above embodiments are merely one of the implementation methods for achieving the technical solution of the present invention. The scope of protection claimed by the present invention is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention.

Claims

1. A full-spectrum solar frequency divider collector, characterized in that, Includes the housing (7); The shell (7) is provided with a first glass layer (1), a second glass layer (2), a third glass layer (3), and a fourth glass layer (4) from top to bottom; A first closed cavity is formed between the first glass layer (1) and the second glass layer (2), and the first closed cavity is a vacuum cavity; A second closed cavity is formed between the third glass layer (3) and the fourth glass layer (4), and the second closed cavity is a vacuum cavity; A third closed cavity is formed between the second glass layer (2) and the third glass layer (3); The third enclosed cavity is used to contain the frequency-divided fluid. One end of the third enclosed cavity is provided with a frequency-divided fluid inlet (5), and the other end is provided with a frequency-divided fluid outlet (6).

2. The full-spectrum solar frequency divider collector according to claim 1, characterized in that, The first glass layer (1), the second glass layer (2), the third glass layer (3) and the fourth glass layer (4) are all made of high-transparency glass.

3. The full-spectrum solar frequency divider collector according to claim 1 or 2, characterized in that, The surfaces of the first glass layer (1), the second glass layer (2), the third glass layer (3), and the fourth glass layer (4) are all coated with a nano-coating.

4. The full-spectrum solar frequency divider collector according to claim 3, characterized in that, The nanocoating is made of nano-titanium oxide or nano-zirconia.

5. The full-spectrum solar frequency divider collector according to claim 3, characterized in that, The lower surface of the second glass layer (2) is coated with a gradient refractive index multilayer film system, which is formed by alternating layers of nano-titanium oxide or nano-zirconia material to form a gradient refractive structure; the upper surface of the third glass layer (3) is integrated with a microprism array.

6. The full-spectrum solar frequency divider collector according to claim 1, characterized in that, The third enclosed cavity adopts a fractal tree-shaped flow channel design, and the width of the flow channel gradually decreases from the frequency-divided fluid inlet (5) to the frequency-divided fluid outlet (6).

7. The full-spectrum solar frequency divider collector according to claim 1, characterized in that, The housing (7), the frequency-divided fluid inlet (5), and the frequency-divided fluid outlet (6) are all made of metal.

8. A method for operating a full-spectrum solar frequency divider collector, characterized in that, include: Sunlight enters the full-spectrum solar frequency collector through the first glass layer (1) and enters the first closed cavity between the first glass layer (1) and the second glass layer (2); The frequency-divided fluid enters the third closed cavity formed between the second glass layer (2) and the third glass layer (3) from the frequency-divided fluid inlet (5) at one end of the third closed cavity; When sunlight enters the third closed cavity, the frequency-dividing fluid divides the sunlight according to the absorption characteristics of different wavelengths of light and converts the energy of long wavelength light in the sunlight into heat energy. The frequency-dividing fluid carrying heat energy flows out from the frequency-dividing fluid outlet (6). The second enclosed cavity formed between the third glass layer (3) and the fourth glass layer (4) can reduce the loss of heat to the outside through heat conduction.

9. A full-spectrum solar energy frequency division utilization system, characterized in that, Including the full-spectrum solar frequency divider collector (100) according to any one of claims 1-7, further comprising: The photovoltaic power generation unit (101) is used to receive the sunlight after frequency division by the full-spectrum solar frequency divider collector (100) and to perform photoelectric conversion on the sunlight; The photothermal utilization unit (102) is used to exchange heat between the input frequency-divided fluid and the working medium, thereby realizing the transfer and utilization of heat.

10. The full-spectrum solar energy frequency division utilization system according to claim 9, characterized in that, The photothermal utilization unit (102) employs a heat exchanger; The photovoltaic power generation unit (101) is connected to an energy storage unit for storing excess electrical energy converted from photovoltaic power.

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