A solar interface evaporation system

By adopting a composite material of squid ink melanin and loofah sponge and a transparent hemispherical dome design, combined with an automated control system, the problems of low efficiency, poor stability and high cost of solar interface evaporation system are solved, achieving efficient, stable and low-cost photothermal desalination effect.

CN224298944UActive Publication Date: 2026-05-29CHENGDU TECH UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU TECH UNIV
Filing Date
2025-05-16
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing solar interface evaporation systems perform poorly in terms of photothermal conversion and evaporation efficiency, have poor long-term operational stability and high costs, and rely on human intervention.

Method used

Using a composite material of squid ink melanin and loofah sponge as the photothermal conversion layer, combined with a transparent hemispherical dome and a detachable connection design, and equipped with photosensitive sensors and water level sensors to achieve automated control, reduce costs and improve evaporation efficiency and stability.

Benefits of technology

It achieves efficient photothermal desalination, maintains excellent photothermal conversion and evaporation efficiency, has high long-term operational stability, requires no manual intervention, and has low cost.

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Abstract

The utility model belongs to the technical field of photothermal desalination, specifically discloses a solar interface evaporation system, including casing, dome and inner bag main part, the inner bag main part is installed in the casing, is equipped with the evaporation recess on the inner bag main part, and the evaporation recess is equipped with the photothermal conversion material layer, the dome is covered with the casing, is used for making the external light to gather and irradiate on the photothermal conversion material layer in the evaporation recess through the dome, the photothermal conversion material layer adopts cuttlefish juice melanin and silk gourd network composite material layer. The utility model can realize efficient photothermal desalination, keep excellent photothermal conversion and evaporation efficiency, and have long -term operation stability high, need not manual intervention, the advantage that cost is low, can effectively solve traditional solar evaporation system stability is poor, cost is high, the problem of depending on manual control, provides brand -new solution for the practicality of photothermal desalination.
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Description

Technical Field

[0001] This utility model belongs to the field of photothermal desalination technology, specifically relating to a solar interface evaporation system. Background Technology

[0002] Solar interface evaporation technology is a highly efficient evaporation technique that utilizes solar energy. It primarily works by using photothermal conversion materials to absorb solar energy and convert it into heat, raising the surface temperature of the material and causing water molecules to evaporate. This process eliminates the need to heat the entire aqueous solution to its boiling point, significantly improving solar energy utilization and evaporation rate.

[0003] Solar-powered interfacial evaporation technology has broad application prospects, particularly in seawater desalination, wastewater treatment, and disinfection. By utilizing solar energy, this technology can produce freshwater efficiently and stably, solving the problem of high energy costs in traditional seawater desalination processes. Furthermore, this technology provides strong support for wastewater treatment and disinfection.

[0004] Traditional solar interface evaporation systems still have room for improvement in terms of photothermal conversion and evaporation efficiency, and suffer from poor long-term operational stability, high costs, and reliance on manual intervention. Therefore, existing solar interface evaporation systems urgently need improvement. Utility Model Content

[0005] The purpose of this invention is to provide a solar interface evaporation system to solve the aforementioned problems in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a solar interface evaporation system, including a shell, a dome, and an inner liner body. The inner liner body is installed inside the shell, and the inner liner body is provided with an evaporation groove, and a photothermal conversion material layer is provided in the evaporation groove. The dome is closed to the shell and is used to allow external light to pass through the dome, be focused, and irradiate the photothermal conversion material layer in the evaporation groove.

[0008] In its application, the water to be purified can be introduced into the evaporation groove on the inner tank body, and the dome can be closed onto the shell. External sunlight can then pass through the dome, be focused, and irradiate the photothermal conversion material layer in the evaporation groove. The photothermal conversion material layer generates heat through photothermal conversion, accelerating the evaporation of the water to be purified in the evaporation groove, thus achieving stable photothermal desalination.

[0009] In one possible design, the photothermal conversion material layer is a composite material layer of squid ink melanin and loofah sponge. When applied, using this composite material as the photothermal conversion layer can replace traditional gold or silver nanoparticles or reduced graphene oxide, significantly reducing material costs while maintaining excellent photothermal conversion efficiency. Simultaneously, utilizing the natural three-dimensional porous network structure of loofah sponge provides efficient capillary water supply, ensuring continuous water transport and avoiding the water supply mismatch problem of traditional synthetic porous materials. Furthermore, the elastic fiber structure of loofah sponge can adaptively adapt to salt crystallization and accumulation, achieving self-cleaning under dynamic water flushing, resulting in significantly better long-term operational stability than traditional rigid porous substrates.

[0010] In one possible design, the dome is a transparent hemispherical dome, with the center of the dome located on the photothermal conversion material layer of the evaporation groove. In application, the transparent hemispherical dome enhances light focusing ability and improves light capture efficiency. Furthermore, the sloping surface inside the dome facilitates flow guidance, allowing condensate droplets to automatically collect along the wall surface, thus improving water recovery rate.

[0011] In one possible design, the inner wall of the shell is provided with a dome fixing device, which is used to form a detachable connection with the dome. In application, the detachable connection between the dome and the top fixing device allows for quick docking and sealing of the dome and the shell.

[0012] In one possible design, the inner liner body has an inner liner protrusion, and the inner wall of the shell has an inner liner fixing device. The inner liner fixing device has an inner liner insert, and the inner liner protrusion is used to insert into the inner liner insert, allowing the inner liner body to be detachably installed on the inner liner fixing device. In application, the detachable insert structure of the inner liner body and the inner liner fixing device allows for quick assembly / replacement of the inner liner body.

[0013] In one possible design, the inner tank body is provided with a water inlet communicating with the evaporation groove. The water inlet is connected to a water pipe, and one end of the water pipe is connected to a water pump. In application, the water pump operates to draw the water to be purified through the water pipe and the water inlet into the evaporation groove for photothermal desalination.

[0014] In one possible design, the inner tank body is provided with a photosensitive sensor mounting slot and a water level sensor mounting slot. A photosensitive sensor is installed in the photosensitive sensor mounting slot, and a water level sensor is installed in the water level sensor mounting slot. A water level sensor positioning port is provided within the evaporation groove, and the detection end of the water level sensor is located within the water level sensor positioning port. In application, the photosensitive sensor can monitor the light intensity in real time, and the water level sensor can monitor the water level at the evaporation interface in real time, facilitating dynamic adjustment of the water pump's water supply power to match the capillary water supply with the evaporation demand.

[0015] In one possible design, the system further includes a circuit board, a MOS driver board, and a power module. The circuit board integrates a microcontroller, which is electrically connected to a photosensor, a water level sensor, and the MOS driver board. The MOS driver board is electrically connected to a water pump. The power module supplies power to the circuit board and the MOS driver board. In application, the light intensity detection results from the photosensor and the water level monitoring results from the water level sensor are transmitted to the microcontroller in real time. The microcontroller dynamically adjusts the water pump's power output based on these results, outputting corresponding control signals to the MOS driver board. The MOS driver board then adjusts the water pump's power output according to the control signals, achieving on-demand water supply and ensuring a stable evaporation rate.

[0016] In one possible design, the circuit board also integrates a display module, which is electrically connected to the microcontroller. The power module is also connected to a power adapter. In application, the display module can show the system's operating status in real time, enabling human-computer interaction. The power adapter connects the power module to an external power source, ensuring a stable power supply to the system.

[0017] In one possible design, the inner liner body is equipped with a handle, and the bottom of the shell is equipped with a drain outlet. In use, the handle allows for easy removal of the inner liner body, and the drain outlet allows condensate collected inside the shell to be discharged and reused.

[0018] Beneficial effects: This invention can achieve efficient photothermal desalination, maintain excellent photothermal conversion and evaporation efficiency, and has the advantages of high long-term operational stability, no need for manual intervention, and low cost. It can effectively solve the problems of poor stability, high cost, and reliance on manual control in traditional solar evaporation systems, and provide a brand-new solution for the practical application of photothermal desalination. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main structure of the inner liner of this utility model;

[0021] Figure 2 This is a schematic diagram of the dome structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the shell structure of this utility model;

[0023] Figure 4 A schematic diagram illustrating the electronic device setup of this utility model;

[0024] Figure 5 This is a schematic diagram of the microcontroller circuit of this utility model;

[0025] Figure 6 This is a schematic diagram of the power supply interface circuit of this utility model;

[0026] Figure 7 This is a schematic diagram of the display module circuit of this utility model.

[0027] In the diagram: 1. Evaporation groove; 2. Water level sensor positioning port; 3. Water level sensor mounting slot; 4. Water inlet; 5. Handle; 6. Inner liner protrusion; 7. Photosensitive sensor mounting slot; 8. Dome; 9. Housing; 10. Dome fixing device; 11. Inner liner fixing device; 12. Inner liner inlay; 13. Drain outlet; 14. Photothermal conversion material layer; 15. Inner liner body; 16. Water level sensor; 17. Water pipe; 18. Power adapter; 19. Power module; 20. Circuit board; 21. MOS driver board; 22. Microcontroller; 23. Display module; 24. Water pump; 25. Photosensitive sensor. Detailed Implementation

[0028] It should be noted that the descriptions of these embodiments are intended to aid in understanding the present invention, but do not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0029] It should be understood that, unless otherwise explicitly specified and limited, the corresponding terms should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can also refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments according to the specific circumstances.

[0030] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. For example, the system may be shown in block diagrams to avoid obscuring the example with unnecessary details. In other embodiments, well-known processes, structures, and techniques may be shown without non-essential details to avoid obscuring the embodiments.

[0031] Example:

[0032] This embodiment provides a solar interface evaporation system, such as Figures 1 to 4 As shown, the device includes a shell 9, a dome 8, and an inner liner body 15. The inner liner body 15 is installed inside the shell 9. The inner liner body 15 has an evaporation groove 1, and a photothermal conversion material layer 14 is installed within the evaporation groove 1. The dome 8 covers the shell 9, allowing external sunlight to pass through and be focused onto the photothermal conversion material layer 14 within the evaporation groove 1. In application, water to be purified is introduced into the evaporation groove 1 on the inner liner body 15, and the dome 8 is then placed on the shell 9. External sunlight can then pass through the dome 8 and be focused onto the photothermal conversion material layer 14 within the evaporation groove 1. The photothermal conversion material layer 14 generates heat through photothermal conversion, accelerating the evaporation of the water to be purified within the evaporation groove 1, thus achieving stable photothermal desalination.

[0033] The photothermal conversion material layer 14 is a composite material layer of squid ink melanin and loofah sponge. In its application, using this composite material as the photothermal conversion layer can replace traditional gold and silver nanoparticles or reduced graphene oxide, significantly reducing material costs while maintaining excellent photothermal conversion efficiency. Simultaneously, utilizing the natural three-dimensional porous network structure of loofah sponge, it can provide highly efficient capillary water supply, ensuring continuous water transport and avoiding the water supply mismatch problem of traditional synthetic porous materials. Furthermore, the elastic fiber structure of loofah sponge can adaptively adapt to salt crystallization and accumulation, achieving self-cleaning under dynamic water flushing. Its long-term operational stability is significantly superior to traditional rigid porous substrates.

[0034] The dome 8 is a transparent hemispherical dome, with the center of the hemispherical dome located on the photothermal conversion material layer 14 of the evaporation groove 1. In its application, the use of a transparent hemispherical dome (such as polycarbonate material) can enhance the light focusing ability and improve the light capture efficiency. In addition, the inclined surface inside the dome 8 facilitates flow guidance, allowing condensate droplets to automatically collect along the wall surface and improve the water recovery rate.

[0035] The inner wall of the housing 9 is provided with a dome fixing device 10, which is used to form a detachable connection with the dome 8. In application, the detachable connection design between the dome fixing device 10 and the dome 8 allows for quick docking and sealing between the dome 8 and the housing 9.

[0036] The inner liner body 15 has an inner liner protrusion 6, and the inner wall of the shell 9 has an inner liner fixing device 11. The inner liner fixing device 11 has an inner liner inlay part 12. The inner liner protrusion 6 is used to insert into the inner liner inlay part 12, so that the inner liner body 15 can be detachably installed on the inner liner fixing device 11. In application, the detachable inlay structure design of the inner liner body 15 and the inner liner fixing device 11 allows for quick assembly / replacement of the inner liner body 15.

[0037] The inner tank body 15 is provided with a water inlet 4 that connects to the evaporation groove 1. The water inlet 4 is connected to a water pipe 17, and one end of the water pipe 17 is connected to a water pump 24. In use, the water pump 24 can pump the water to be purified into the evaporation groove 1 through the water pipe 17 and the water inlet 4 for photothermal desalination.

[0038] The inner tank body 15 is provided with a photosensitive sensor mounting slot 7 and a water level sensor mounting slot 3. A photosensitive sensor 25 is installed in the photosensitive sensor mounting slot 7, and a water level sensor 16 is installed in the water level sensor mounting slot 3. A water level sensor positioning port 2 is provided in the evaporation groove 1, and the detection end of the water level sensor 16 is located in the water level sensor positioning port 2. In application, the photosensitive sensor 25 can monitor the light intensity in real time, and the water level sensor 16 can monitor the water level at the evaporation interface in real time, so as to dynamically adjust the water supply power of the water pump 24 to match the capillary water supply with the evaporation demand.

[0039] The system also includes a circuit board 20, a MOS driver board 21, and a power module 19. A microcontroller 22 is integrated on the circuit board 20. The microcontroller 22 is electrically connected to a photosensitive sensor 25, a water level sensor 16, and the MOS driver board 21. The MOS driver board 21 is electrically connected to a water pump 24. The power module 19 supplies power to the circuit board 20 and the MOS driver board 21. In application, the light intensity detection results from the photosensitive sensor 25 and the water level monitoring results from the water level sensor 16 are transmitted to the microcontroller 22 in real time. The microcontroller 22 dynamically adjusts the water supply power of the water pump 24 based on these results and outputs corresponding control signals to the MOS driver board 21. The MOS driver board 21 then adjusts the water supply power of the water pump 24 according to the control signals, achieving on-demand water supply and ensuring a stable evaporation rate.

[0040] The circuit board 20 also integrates a display module 23, which is electrically connected to the microcontroller 22. The power module 19 is also connected to a power adapter 18. In application, the display module 23 can display the system's operating status in real time, enabling human-computer interaction. The power adapter 18 connects the power module 19 to an external power source, ensuring stable power supply to the system.

[0041] The inner liner body 15 is provided with a handle 5, and the bottom of the shell 9 is provided with a drain outlet 13. In use, the inner liner body 15 can be easily picked up and put away through the handle 5, and the drain outlet 13 can drain the condensate water collected inside the shell 9 for reuse.

[0042] In practical implementation, the system uses a transparent hemispherical dome to collect sunlight and employs an inner tank design. During the evaporation and water purification process, the main body 15 of the inner tank needs to be inserted into the inner tank fixing device 11 for use. The microcontroller 22 can be used as follows: Figure 5 The STM32 series microcontroller shown can be connected to circuit board 20 via, for example... Figure 6 The Type-C power interface shown establishes a power connection with the USB interface of the power module 19. After the system is connected and powered on, the water level sensor 16 and the light sensor 25 will monitor the water level and light intensity in real time, and transmit the data to the microcontroller 22 processor. When the light intensity is lower than the preset value, the microcontroller 22 can drive... Figure 7 The display module 23 (which can be connected to an OLED display) indicates insufficient light, and the microcontroller 22 enters standby mode until the light intensity exceeds a preset value. When the water level is below the preset value and the microcontroller 22 is on and not in standby mode, the water pump 24 can be controlled by the MOS driver board 21 to operate. At this time, the water pump 24 draws in the water to be purified, and the water to be purified enters the evaporation groove 1 through the water pipe 17 and the water inlet 4. When the water level exceeds the preset value, the water pump 24 stops operating until the water level sensor 16 detects that the water level is below the preset value again, thus forming a closed loop (the preset values ​​of light intensity and water level can be determined by the MOS driver board 21). Figure 4 (The peripheral buttons key1, key2, key3, and key4 of the microcontroller 22 shown can be changed). After the purified water enters the evaporation groove 1, under sufficient light conditions, the water will continue to evaporate at the evaporation interface through capillary action. During this period, the water vapor will condense into water droplets on the inner wall of the dome 8 and flow down the wall to gather in the shell 9. This process can continue.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A solar interface evaporation system, characterized in that, The device includes a shell (9), a dome (8), and an inner liner body (15). The inner liner body (15) is installed inside the shell (9). The inner liner body (15) is provided with an evaporation groove (1), and a photothermal conversion material layer (14) is provided inside the evaporation groove (1). The dome (8) is closed to the shell (9) to allow external light to pass through the dome (8) and be focused and irradiated onto the photothermal conversion material layer (14) inside the evaporation groove (1).

2. The solar interface evaporation system according to claim 1, characterized in that, The photothermal conversion material layer (14) is a composite material layer of squid ink melanin and loofah.

3. The solar interface evaporation system according to claim 1, characterized in that, The dome (8) is a transparent hemispherical dome, and the center of the hemispherical dome is located on the photothermal conversion material layer (14) of the evaporation groove (1).

4. The solar interface evaporation system according to claim 1, characterized in that, The inner wall of the housing (9) is provided with a dome fixing device (10), which is used to form a detachable connection with the dome (8).

5. A solar interface evaporation system according to claim 1, characterized in that, The inner liner body (15) is provided with an inner liner protrusion (6), and the inner wall of the shell (9) is provided with an inner liner fixing device (11). The inner liner fixing device (11) is provided with an inner liner inlay part (12). The inner liner protrusion (6) is used to insert into the inner liner inlay part (12), so that the inner liner body (15) can be detachably installed on the inner liner fixing device (11).

6. The solar interface evaporation system according to claim 1, characterized in that, The inner liner body (15) is provided with a water inlet (4) that connects to the evaporation groove (1). The water inlet (4) is connected to a water pipe (17), and one end of the water pipe (17) is connected to a water pump (24).

7. A solar interface evaporation system according to claim 6, characterized in that, The inner liner body (15) is provided with a photosensitive sensor mounting slot (7) and a water level sensor mounting slot (3). A photosensitive sensor (25) is installed in the photosensitive sensor mounting slot (7), and a water level sensor (16) is installed in the water level sensor mounting slot (3). A water level sensor positioning port (2) is provided in the evaporation groove (1), and the detection end of the water level sensor (16) is located in the water level sensor positioning port (2).

8. A solar interface evaporation system according to claim 7, characterized in that, The system also includes a circuit board (20), a MOS driver board (21), and a power module (19). The circuit board (20) integrates a microcontroller (22), which is electrically connected to a photosensitive sensor (25), a water level sensor (16), and the MOS driver board (21). The MOS driver board (21) is electrically connected to a water pump (24). The power module (19) is used to supply power to the circuit board (20) and the MOS driver board (21).

9. A solar interface evaporation system according to claim 8, characterized in that, The circuit board (20) also integrates a display module (23), which is electrically connected to the microcontroller (22), and the power module (19) is also connected to a power adapter (18).

10. A solar interface evaporation system according to claim 1, characterized in that, The inner liner body (15) is provided with a handle (5), and the bottom of the shell (9) is provided with a drain outlet (13).