A concentrated photovoltaic power generation device capable of cooling and self-cleaning

Abstract

The application discloses a concentrated photovoltaic power generation device capable of cooling and self-cleaning, and belongs to the technical field of new energy sources. The application solves the problem that the existing concentrated photovoltaic power generation device is easily affected by the high temperature of a solar cell panel, and the power generation efficiency and service life are affected. The light collecting module and the cell panel module are installed on a support frame and arranged in parallel in the up-down direction, the water collecting and cleaning assembly comprises a first condensing chamber, a second condensing chamber and a water absorbing material layer, the water absorbing material layer is fixed to the bottom surface of the cell panel module, the first condensing chamber is fixed below the water absorbing material layer, the second condensing chamber is fixed to one side of the support frame, the bottom of the first condensing chamber and the lower part of the second condensing chamber are communicated through a communication pipe, the second condensing chamber is respectively communicated with a first cleaning pipe and a second cleaning pipe, and the ends of the two cleaning pipes, which are away from the second condensing chamber, are arranged above the light collecting module and above the cell panel module respectively.

Description

Technical Field

[0001] This invention relates to a concentrated photovoltaic power generation device capable of cooling and self-cleaning, belonging to the field of new energy technology. Background Technology

[0002] To achieve its dual-carbon goals and promote energy structure transformation, my country is vigorously developing clean energy sources such as solar energy. However, in the process of solar energy utilization, there are problems such as the weak light-concentrating capacity of solar panels and the reduced power generation efficiency caused by heat generation on the panel surface. Simultaneously, due to the electrostatic adsorption of fine particles on the surface of the solar panels, dust gradually accumulates over time, obstructing the panels and hindering light absorption and utilization. This necessitates the consumption of significant human, material, and water resources for cleaning solar panels, while my country suffers from severe water scarcity. According to a survey by the Shaanxi Provincial Ecological Civilization Construction Promotion Association, as of July 2022, my country's per capita water resources were only 2400 km³, only one-quarter of the world average. Of the 669 cities nationwide, 400 suffer from insufficient water supply, and 110 face severe water shortages. Given that the air contains a certain amount of water vapor, the urgent need for efficient water resource utilization is driving attention to atmospheric water collection.

[0003] Atmospheric water harvesting (AWH) is a promising technology that primarily employs four methods: dew-based, adsorption-based, membrane-based, and fog-based methods. Dew-based AWH generates water by allowing humid ambient air to flow over a cooled surface; adsorption-based AWH generates water through water absorption by adsorbent materials and thermally driven desorption; membrane-based AWH directly separates water vapor from the air before the cooling process; and fog-based AWH captures fog droplets using a rectangular grid perpendicular to the wind. Over the past 20 years, scientists have made significant efforts to overcome the bottlenecks of low water yields and inefficient systems by developing high-performance materials, enhancing heat or moisture transfer, and scaling up devices. For example, in adsorption-based AWH, various advanced adsorbents have been proposed, such as MOFs, hydrogels, and composite adsorbents.

[0004] Currently, photovoltaic (PV) power generation modules are typically flat-panel type, requiring a large number of solar cells and incurring high costs. One effective way to reduce the cost of solar power generation is to adopt concentrated photovoltaic (CPV) technology. By using a relatively inexpensive concentrating system, the area of ​​the cells used can be significantly reduced. Using Fresnel lenses to focus sunlight is beneficial for improving the efficiency of solar panels. However, the technology of using Fresnel lenses to focus sunlight has both advantages and disadvantages. While concentrating sunlight can reduce the number of panels used and achieve energy conservation and emission reduction to some extent, it can also cause the panel temperature to rise rapidly. The higher the temperature of the PV panel, the lower the power generation efficiency. For every 1°C increase in Si-PV temperature, its photoelectric conversion efficiency decreases by 0.45%. Furthermore, excessively high localized temperatures on the solar panel can generate hot spots, affecting the lifespan of the PV panel. Therefore, finding suitable methods to address the impact of solar panel heat generation on its efficiency and lifespan is extremely important. Summary of the Invention

[0005] The present invention aims to solve the problem that the power generation efficiency and service life of existing concentrated photovoltaic power generation devices are easily affected by the excessive temperature of the solar panels, and thus provides a concentrated photovoltaic power generation device that can achieve cooling and self-cleaning.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0007] A concentrated photovoltaic power generation device capable of cooling and self-cleaning includes a support frame, a concentrating module, a solar panel module, and a water collection and cleaning component. The concentrating module and the solar panel module are both mounted on the support frame and arranged vertically in parallel. The water collection and cleaning component includes a first condensation chamber, a second condensation chamber, and a water-absorbing material layer. The water-absorbing material layer is fixed to the bottom surface of the solar panel module. The first condensation chamber is fixed below the water-absorbing material layer, and the second condensation chamber is fixed to one side of the support frame. The bottom of the first condensation chamber and the lower part of the second condensation chamber are connected by a connecting pipe. The second condensation chamber is connected to both a first cleaning pipe and a second cleaning pipe. The ends of the two cleaning pipes furthest from the second condensation chamber are respectively positioned above the concentrating module and above the solar panel module.

[0008] Furthermore, the focusing module includes a transparent box and a Fresnel lens, wherein the Fresnel lens is fixedly mounted parallel to the top of the transparent box, and a nanofluid layer is laid inside the transparent box.

[0009] Furthermore, the absorbent material layer is a loofah grafted with calcium alginate adsorbent.

[0010] Furthermore, both the concentrating module and the solar panel module are arranged at an angle.

[0011] Furthermore, one end of the concentrating module and one end of the solar panel module are rotatably connected to the support frame. The concentrating module achieves its tilt angle on the support frame through a first angle adjustment bracket, and the solar panel module achieves its tilt angle on the support frame through a second angle adjustment bracket.

[0012] Furthermore, the second condensing chamber includes a condensing chamber body, a partition plate, and a baffle plate. The partition plate has an L-shaped structure and is fixedly installed on the upper part of the left and right inner walls of the condensing chamber body. The baffle plate is obliquely fixed between the front inner wall of the condensing chamber body and the partition plate. The bottom inner wall of the condensing chamber body is obliquely arranged. The first cleaning pipe is connected to the upper part of the partition plate, and the second cleaning pipe is connected to the lower end of the second condensing chamber.

[0013] Furthermore, a first water pump is installed between the first cleaning pipe and the second condensation chamber.

[0014] Furthermore, the bottom of the second condensing chamber is set higher than the solar panel module, or a second water pump is connected between the second cleaning pipe and the second condensing chamber.

[0015] Furthermore, the support frame is a rectangular frame structure, the light-concentrating module is fixedly mounted on the top of the rectangular frame, and the solar panel module is fixedly mounted in the middle of the rectangular frame through a crossbeam structure.

[0016] Furthermore, the first condensation chamber is fixedly connected to the battery panel module.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The concentrating photovoltaic power generation device of the present invention, which can achieve cooling and self-cleaning, can collect water at room temperature, thereby achieving the purpose of energy saving and emission reduction.

[0019] By rationally combining and fully utilizing the various structural components, the system maximizes solar panel efficiency through concentrated light while simultaneously controlling panel temperature. All water used in the entire system comes from the atmospheric environment, and the water used to clean the solar panel and concentrating modules can be collected for irrigation, thus achieving low-carbon or even negative-carbon emissions. Specifically, water collection tanks can be installed at the lower ends of the concentrating and solar panel modules to collect the cleaned and cooled water for irrigation.

[0020] The concentrating photovoltaic power generation device of the present invention, which can achieve cooling and self-cleaning, has a simple structure, low cost and wide applicability, realizes the utilization of atmospheric water collection technology, and is expected to be applied to desert areas to promote the collection and utilization of water resources in desert areas. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a perspective view of the second condensation chamber;

[0023] Figure 3 This is a flowchart of the preparation process for absorbent materials.

[0024] Figure 4 This is a flowchart of the nanofluid preparation process;

[0025] Figure 5 shows the test results of the concentrated photovoltaic power generation device of the present invention, which can achieve cooling and self-cleaning, with the addition of a Fresnel lens. In Figure 5(a), the thermal images of the solar panel without a Fresnel lens are shown under different light intensities.

[0026] Figure 5(b) shows the thermal images of solar panels with Fresnel lenses under different light intensities; Figure 5(c) shows the voltage-temperature curves with and without lenses under the same light intensity (the dashed line in the figure represents the condition with lenses); Figure 5(d) shows the output voltage-temperature curve of solar panels with lenses; Figure 5(e) shows the output voltage-temperature curve of solar panels without lenses.

[0027] In the diagram: 1. Support frame; 2. Concentrating module; 3. Solar panel module; 4. First condensing chamber; 5. Second condensing chamber; 5-1. Top cover; 5-2. Main body of condensing chamber; 5-3. Partition plate; 5-4. Baffle; 7. Connecting pipe; 8. First cleaning pipe; 9. Second cleaning pipe; 10. First water pump; 11. First angle adjustment bracket; 12. Second angle adjustment bracket. Detailed Implementation

[0028] Specific implementation method one: Combining Figure 1 Figure 5 illustrates this embodiment, providing a clear and complete description of the technical solutions in this embodiment of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0029] It should be noted that the descriptions of "left," "right," "left side," "right side," "upper part," "lower part," "top," and "bottom" in this invention are defined based on the orientation or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the described structure must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] A concentrated photovoltaic power generation device capable of cooling and self-cleaning includes a support frame 1, a concentrating module 2, a solar panel module 3, and a water collection and cleaning assembly. The concentrating module 2 and the solar panel module 3 are both mounted on the support frame 1 and arranged vertically in parallel. The water collection and cleaning assembly includes a first condensing chamber 4, a second condensing chamber 5, and a water-absorbing material layer. The water-absorbing material layer is fixed to the bottom surface of the solar panel module 3. The first condensing chamber 4 is fixed below the water-absorbing material layer. The second condensing chamber 5 is fixed to one side of the support frame 1. The bottom of the first condensing chamber 4 and the lower part of the second condensing chamber 5 are connected by a connecting pipe 7. The second condensing chamber 5 is connected to a first cleaning pipe 8 and a second cleaning pipe 9. The ends of the two cleaning pipes away from the second condensing chamber 5 are respectively located above the concentrating module 2 and above the solar panel module 3.

[0032] The solar panel module 3 is the solar panel.

[0033] The absorbent material layer is preferably adhered to the bottom surface of the solar panel module 3.

[0034] The first condensation chamber 4 can be fixed on the battery panel module 3 or on the support frame 1, as long as it can be fixed below the water-absorbing material layer, so as to ensure that the water vapor desorbed from the water-absorbing material layer can be collected into the first condensation chamber 4, and ensure that the loofah sponge can absorb water at night and desorb water vapor during the day.

[0035] The bottom of the first condenser chamber 4 has an openable / closable design.

[0036] The top of the second condenser chamber 5 is foldably fitted with a top cover 5-1.

[0037] By utilizing the porous properties of water-absorbing materials to adsorb water vapor in the air and absorb the latent heat of vaporization, the water vapor is then released, thereby cooling the solar panels and effectively mitigating the impact of high temperatures on their photoelectric conversion efficiency and lifespan.

[0038] Meanwhile, the condensed water vapor can also clean the concentrating module 2 and the solar panel module 3 through the first cleaning pipe 8 and the second cleaning pipe 9, allowing for regular cleaning of the concentrating module 2 and the solar panel module 3.

[0039] Both the first cleaning pipe 8 and the second cleaning pipe 9 are preferably 8mm outer diameter water pipes.

[0040] The water vapor desorption process of the water-absorbing material layer achieves heat absorption and cooling of the solar panel, and some of the water vapor can enter the second condensation chamber 5 through the connecting pipe 7.

[0041] By setting up two condensation chambers, the moisture absorption capacity can be fully guaranteed to meet the overall water demand of the device.

[0042] The concentrating photovoltaic power generation device of the present invention, which can achieve cooling and self-cleaning, can collect water at room temperature, thereby achieving the purpose of energy saving and emission reduction.

[0043] By rationally combining and fully utilizing the various structural components, the system maximizes solar panel efficiency through concentrated light while simultaneously controlling panel temperature. All water used in the entire system comes from the atmospheric environment, and the water used to clean the solar panel module 3 and the concentrator module 2 can be collected for irrigation, thus achieving low-carbon or even negative-carbon emissions. Specifically, water collection tanks can be installed at the lower ends of the concentrator module 2 and the solar panel module 3 to collect the cleaned and cooled water for irrigation.

[0044] The concentrating photovoltaic power generation device of the present invention, which can achieve cooling and self-cleaning, has a simple structure, low cost and wide applicability, realizes the utilization of atmospheric water collection technology, and is expected to be applied to desert areas to promote the collection and utilization of water resources in desert areas.

[0045] The concentrating module 2 includes a transparent box and a Fresnel lens, wherein the Fresnel lens is fixedly mounted parallel to the top of the transparent box, and a nanofluid layer is laid inside the transparent box. This design allows for the positioning and installation of the Fresnel lens through the transparent box, while avoiding interference with the absorption and utilization of sunlight by the solar panel module 3. The Fresnel lens can be mounted on the top cover 5-1 of the transparent box, or it can replace the top cover 5-1. The nanofluid has selective transmittance for different wavelengths of light. When the nanofluid is introduced into the solar light path, it selectively absorbs infrared light from the solar panel, which is easily heated. Using water-based SiO2 nanofluid as the PV / T radiation frequency divider effectively reduces the temperature rise rate of Si-PV. Therefore, using nanofluid in the light path can effectively alleviate the problem of solar panel temperature rise. The nanofluid layer is arranged parallel to the Fresnel lens. The device of this invention can achieve integrated utilization of concentrated cooling, water collection and heat absorption, and condensate, enabling efficient utilization of sunlight and meeting the self-cleaning needs of solar panels and irrigation requirements for crops. This invention combines a Fresnel lens with a solar panel to form a concentrated photovoltaic system, thereby improving the efficiency of the solar panel. Furthermore, the intervention of nanofluids in the optical path aims to appropriately mitigate the negative impact of rapid heating of the solar panel on its efficiency.

[0046] The preparation method of nanofluids includes the following steps:

[0047] First, 1.04 g of SiO2 nanoparticles with a diameter of 15 nm were calculated and measured. 80 mL of deionized water was used as the base solution, and 0.88 g of Na(PO3)6 was selected as a dispersant to improve the stability of the nanofluid. The volume ratio of SiO2 nanoparticles to Na(PO3)6 was 1:1. The nanoparticles and dispersant were slowly added to the base solution, and the mixture was stirred for 2 hours to obtain a nanofluid mixture. Finally, the nanofluid was continuously vibrated for 20 minutes using a KQ-100KDE ultrasonic vibrator under 40 kHz ultrasonic pulse conditions to obtain a stable, suspended water-based SiO2 nanofluid. After the obtained nanofluid was allowed to stand for one week, no stratification occurred in the bottle, indicating successful preparation.

[0048] The absorbent material layer is a loofah-grafted calcium alginate adsorbent. This design, resulting in ILCA (Loofah-grafted Calcium Alginate Adsorbent with Ink), offers significant advantages over other atmospheric moisture-collecting materials (such as MOFs, hydrogels, and composite adsorbents), including readily available availability, low cost, simple and safe manufacturing process, and energy efficiency and environmental friendliness. This invention crosslinks sodium alginate-carbon ink composite colloid and 25 wt.% CaCl2 solution onto porous materials such as loofah pulp to prepare ILCA (Loofah-grafted Calcium Alginate Adsorbent with Ink). The finished product can absorb up to 30% of its own weight in water at room temperature. The preparation method of this absorbent material includes the following steps:

[0049] Step 1: Thoroughly wash a 1cm wide loofah sponge with deionized water and dry it in a 50℃ forced-air drying oven for 2-3 hours until completely dry. Dissolve 2.0g of sodium alginate powder evenly in 100ml of deionized water, stir mechanically until homogeneous, then add 10ml of commercial carbon ink and stir again until homogeneous.

[0050] Step 2: Soak the treated loofah sponge in a sodium alginate-carbon ink mixture for 10 hours, then dry it in a forced-air drying oven at 30-40℃ for 5 hours to obtain loofah-grafted sodium alginate (LSA).

[0051] Step 3: Dissolve 100g of CaCl2 powder in 300mL of deionized water to obtain a 25wt.% CaCl2 solution. Immerse the loofah sponge coated with sodium alginate in the CaCl2 solution for 48 hours. After the sodium alginate and CaCl2 are completely cross-linked, the loofah sponge continues to absorb the CaCl2 solution until the CaCl2 solution is evenly diffused in the loofah sponge structure. Finally, dry in a forced-air drying oven at 30-40℃ for 2-3 hours to obtain the final product, Loofah Grafted Calcium Alginate without Ink (LCA).

[0052] There are many porous materials used in daily life for atmospheric water collection, such as loofah sponges, straw, and sponges. These materials are not only common but also very inexpensive. Loofah, a common vegetable, is widely cultivated throughout both northern and southern my country. The mature, fibrous network inside is called loofah sponge (also known as loofah fibrous tissue), which can be used for washing stoves or as furniture, possessing similar porous properties to sponges. Meanwhile, my country is a major corn-producing country, generating a large amount of agricultural waste—corn straw—every year. The traditional method of straw disposal is burning, which not only easily pollutes the air but also harms human health. Corn straw also has porous properties similar to loofah sponges and sponges. Given these three materials' unique porous structures, they can be transformed into efficient, low-cost, and environmentally friendly atmospheric water collection materials after appropriate processing.

[0053] Both the light-concentrating module 2 and the solar panel module 3 are arranged at an angle. This design achieves better light absorption.

[0054] One end of the focusing module 2 and one end of the solar panel module 3 are rotatably connected to the support frame 1. The focusing module 2 achieves its tilt angle on the support frame 1 through a first angle adjustment bracket 11, and the solar panel module 3 achieves its tilt angle on the support frame 1 through a second angle adjustment bracket 12. In this design, the first angle adjustment bracket 11 and the second angle adjustment bracket 12 have the same structure, and their dimensions are determined according to the actual dimensions of the focusing module 2 and the solar panel module 3. The angle adjustment bracket can be any structure capable of adjusting the angles of the focusing module 2 and the solar panel module 3. For example, the first angle adjustment bracket 11 includes support rods arranged parallel to both sides of the focusing module 2. The two ends of each support rod are slidably connected to the focusing module 2 and the support frame 1, respectively. The angle of the focusing module 2 is adjusted by adjusting the tilt angle of the support rod. Positioning structures, such as bolts and nuts, can be provided at the two ends of the support rods to limit their position.

[0055] The second condensing chamber 5 includes a condensing chamber body 5-2, a partition plate 5-3, and a baffle plate 5-4. The partition plate 5-3 is L-shaped and fixed to the upper part of the left and right inner walls of the condensing chamber body 5-2. The baffle plate 5-4 is obliquely fixed between the front inner wall of the condensing chamber body 5-2 and the partition plate 5-3. The bottom inner wall of the condensing chamber body 5-2 is obliquely arranged. A first cleaning pipe 8 is connected above the partition plate 5-3, and a second cleaning pipe 9 is connected to the lower end of the second condensing chamber 5. This design allows the L-shaped partition plate 5-3 to create an independent condensate tank in the upper part of the second condensing chamber 5. Preferably, the bottom plate of the partition plate 5-3 is obliquely arranged, and the first cleaning pipe 8 is connected to the lower end of the partition plate 5-3 near the bottom plate. When there is little water on the partition plate 5-3, water can still smoothly enter the first cleaning pipe 8. The second cleaning pipe 9 is connected to the lower end of the second condensing chamber 5, and when there is little water in the second condensing chamber 5, water can still smoothly enter the second cleaning pipe 9. By tilting the baffle 5-4 between the front inner wall of the condensation chamber body 5-2 and the partition plate 5-3, water vapor can be condensed and collected under its blocking effect, thereby rinsing the battery panel module 3.

[0056] A first water pump 10 is installed between the first cleaning pipe 8 and the second condensation chamber 5. This design allows water from the second condensation chamber 5 to be easily introduced into the first cleaning pipe 8 by the first water pump 10.

[0057] The bottom of the second condensing chamber 5 is positioned higher than the solar panel module 3, or a second water pump is connected between the second cleaning pipe 9 and the second condensing chamber 5. This design ensures that the water in the second condensing chamber 5 can be smoothly discharged through the second cleaning pipe 9.

[0058] The supporting frame 1 is a rectangular frame structure, the light-concentrating module 2 is fixedly installed at the top of the rectangular frame, and the solar panel module 3 is fixedly installed in the middle of the rectangular frame through a crossbeam structure.

[0059] Specific Implementation Method Two: Combining Figure 1 In this embodiment, the first condensing chamber 4 is fixedly connected to the solar panel module 3. This design allows the first condensing chamber 4 and the solar panel module 3 to operate synchronously. When the tilt angle of the solar panel module 3 is adjusted, the first condensing chamber 4 can be adjusted synchronously, ensuring that the water vapor desorbed from the absorbent material layer does not leak, while also collecting some of the water vapor that fails to enter the second condensing chamber 5. Other components and connections are the same as in specific embodiment one.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A concentrated photovoltaic power generation device capable of cooling and self-cleaning, characterized in that: The device includes a support frame (1), a focusing module (2), a solar panel module (3), and a water collection and cleaning assembly. The focusing module (2) and the solar panel module (3) are both mounted on the support frame (1) and arranged in parallel. The water collection and cleaning assembly includes a first condensing chamber (4), a second condensing chamber (5), and a water-absorbing material layer. The water-absorbing material layer is fixed to the bottom surface of the solar panel module (3). The first condensing chamber (4) is fixed below the water-absorbing material layer. The second condensing chamber (5) is fixed to one side of the support frame (1). The bottom of the first condensing chamber (4) and the lower part of the second condensing chamber (5) are connected by a connecting pipe (7). The second condensing chamber (5) is connected to a first cleaning pipe (8) and a second cleaning pipe (9). The ends of the two cleaning pipes that are away from the second condensing chamber (5) are respectively located above the focusing module (2) and above the solar panel module (3). The focusing module (2) includes a transparent box and a Fresnel lens, wherein the Fresnel lens is fixedly mounted parallel to the top of the transparent box, and a nanofluid layer is laid inside the transparent box; The water-absorbing material layer is a loofah grafted with calcium alginate adsorbent. One end of the focusing module (2) and one end of the battery panel module (3) are rotatably connected to the support frame (1). The focusing module (2) achieves its tilt angle on the support frame (1) through the first angle adjustment bracket (11), and the battery panel module (3) achieves its tilt angle on the support frame (1) through the second angle adjustment bracket (12). The second condensing chamber (5) includes a condensing chamber body (5-2), a partition plate (5-3), and a baffle plate (5-4). The partition plate (5-3) is L-shaped and fixedly installed on the upper part of the left and right inner walls of the condensing chamber body (5-2). The baffle plate (5-4) is obliquely fixedly installed between the front inner wall of the condensing chamber body (5-2) and the partition plate (5-3). The bottom inner wall of the condensing chamber body (5-2) is obliquely arranged. The first cleaning pipe (8) is connected to the top of the partition plate (5-3), and the second cleaning pipe (9) is connected to the lower end of the second condensing chamber (5).

2. A concentrated photovoltaic power generation device capable of cooling and self-cleaning according to claim 1, characterized in that: Both the focusing module (2) and the battery panel module (3) are arranged at an angle.

3. A concentrating photovoltaic power generation device capable of cooling and self-cleaning according to claim 1, characterized in that: A first water pump (10) is installed between the first cleaning pipe (8) and the second condensation chamber (5).

4. A concentrated photovoltaic power generation device capable of cooling and self-cleaning according to claim 1, characterized in that: The bottom of the second condensing chamber (5) is set higher than the battery panel module (3), or a second water pump is connected between the second cleaning pipe (9) and the second condensing chamber (5).

5. A concentrating photovoltaic power generation device capable of cooling and self-cleaning according to claim 1, characterized in that: The supporting frame (1) is a rectangular frame structure, the light-concentrating module (2) is fixed at the top of the rectangular frame, and the battery panel module (3) is fixed in the middle of the rectangular frame through a beam structure.

6. A concentrated photovoltaic power generation device capable of cooling and self-cleaning according to claim 1, characterized in that: The first condensation chamber (4) is fixedly connected to the battery panel module (3).

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