A modular photothermal interface evaporator
By using a modular design and modular assembly of the photothermal interface evaporator, the problems of inconvenient disassembly and assembly and unadjustable water production of existing photothermal interface evaporators have been solved, achieving convenient installation, stable operation and efficient evaporation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-30
AI Technical Summary
Existing photothermal interface evaporator modules are fixedly installed, which is inconvenient to disassemble and reassemble, has high maintenance costs, cannot be combined and spliced, and makes it difficult to flexibly adjust the water production rate, thus reducing practicality.
Adopting a modular design, the combination of light absorption plates, sockets, pins, compression springs, levers, connecting slots, and connecting frames enables convenient assembly and disassembly of light absorption plates and splicing of multiple evaporators. The combination of floating platforms, mounting slots, and counterweights improves stability, and the use of heat insulation films and water vapor separation films optimizes heat utilization.
It enables convenient installation and disassembly of the light absorption plate, allows multiple evaporators to be flexibly spliced, improves the evaporation rate and energy efficiency, enhances the stability of the device on the water surface, and improves water evaporation efficiency by optimizing heat utilization.
Smart Images

Figure CN224430266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporator technology, specifically a modular photothermal interface evaporator. Background Technology
[0002] A solar thermal interface evaporator is a device that utilizes solar energy to achieve efficient water evaporation through "localized interface heating." Its core principle is to convert solar energy into heat energy and concentrate it at the gas-liquid interface, rather than heating the entire water body, thereby significantly improving evaporation efficiency. It has significant value in water resource utilization fields such as seawater desalination, brackish water desalination, and wastewater treatment. The modular solar thermal interface evaporator is a new type of equipment developed based on the traditional solar thermal interface evaporator, using the concept of "standardized unit design + assembleable expansion."
[0003] The existing solar thermal interface evaporators use a fixed installation method for each module unit. This method is inconvenient to disassemble and assemble each module unit, increases maintenance costs, and multiple solar thermal interface evaporators cannot be combined and spliced into one unit for use. It is difficult to achieve flexible adjustment of water production, which reduces the practicality of solar thermal interface evaporators and cannot meet the usage requirements. Utility Model Content
[0004] The purpose of this utility model is to provide a modular photothermal interface evaporator to solve the problems mentioned in the background art, which are that the existing photothermal interface evaporators adopt a fixed installation method for each module unit. This method is inconvenient to disassemble and assemble each module unit, increases maintenance costs, and multiple photothermal interface evaporators cannot be combined and spliced into one unit for use, making it difficult to flexibly adjust the water production capacity, reducing the practicality of the photothermal interface evaporator and failing to meet the usage requirements.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular photothermal interface evaporator, comprising a frame body and a connecting frame. The top of the frame body is provided with an installation cavity, inside which a light-absorbing plate is installed. A floating platform is fixedly installed on the lower exterior of the frame body. A porous sponge is fixedly installed below the floating platform, and the porous sponge communicates with the floating platform. The upper end of the porous sponge is located below the light-absorbing plate. A through hole is provided on the frame body, located below the installation cavity. Two connecting grooves are provided on the side wall of the frame body, located on both sides of the frame body. The connecting frame is correspondingly arranged with the connecting grooves and is slidably connected to the frame body.
[0006] Preferably, the upper end of the porous sponge is provided with a plurality of protrusions, and the protrusions are equidistantly arranged at the upper end of the porous sponge. The protrusions are integral with the porous sponge and are conical in shape.
[0007] Preferably, the cross-section of the connecting groove is T-shaped, and the connecting frame is I-shaped.
[0008] Preferably, the light-absorbing plate has two insertion holes on its side wall, and the two insertion holes are located on both sides of the light-absorbing plate. The frame body has a telescopic cavity inside, and the telescopic cavity is connected to the mounting cavity. A pin is slidably installed inside the telescopic cavity, and the pin is corresponding to the insertion hole. A compression spring is slidably installed inside the telescopic cavity, and the two ends of the compression spring are fixedly connected to the frame body and the pin, respectively. A lever is slidably installed inside the telescopic cavity, and the lever is fixedly connected to the pin.
[0009] Preferably, a flexible pad is fixedly installed at the bottom of the mounting cavity.
[0010] Preferably, a dustproof mesh and a water vapor separation membrane are fixedly installed inside the through hole, and the water vapor separation membrane is located inside the dustproof mesh.
[0011] Preferably, a heat insulation film is attached to the inner wall of the frame body.
[0012] Preferably, the upper end of the floating platform is provided with four mounting slots, which are equidistant from each other at the upper end of the floating platform. A counterweight is slidably installed inside the mounting slot.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model device, through the arrangement of a light absorption plate, a socket, a pin, a compression spring, a lever, a connecting groove, and a connecting frame, uses a compression spring to apply a pushing force to the pin, which pushes one end of the pin into the socket, thus limiting the light absorption plate installed in the mounting cavity and ensuring the firmness of the installed light absorption plate. The lever pulls the pin, which is pulled out of the socket, making it convenient for the light absorption plate to be disassembled and assembled. The two ends of the connecting frame are aligned with the connecting groove on the side wall of the frame body and inserted for connection, which can splice two evaporators into one unit. According to the above assembly method, multiple evaporators can be spliced together for use, realizing flexible adjustment of water production.
[0015] 2. The device of this utility model increases the heated area of the water at the photothermal interface by setting a protruding structure, thereby improving the heat conduction efficiency of the upper surface of the porous sponge and effectively improving the evaporation rate and energy efficiency of the photothermal interface evaporation system.
[0016] 3. The utility model device, through the setting of a floating platform, a mounting groove and a counterweight, provides sufficient buoyancy for the evaporator to float on the water surface for use. The counterweight is inserted into the mounting groove to increase the weight of the floating platform, improve the stability of the evaporator floating on the water, and prevent the evaporator from overturning.
[0017] 4. This utility model device uses a heat insulation membrane and a water vapor separation membrane. The water vapor separation membrane filters the water vapor to be discharged, allowing only water vapor to be discharged. The heat insulation membrane prevents heat from being lost to the surroundings, concentrating the heat at the evaporation interface, thereby achieving a highly efficient water evaporation process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a perspective view of the connection between the porous sponge and the floating platform of this utility model;
[0020] Figure 3 This is a diagram showing the connection relationship between the light-absorbing plate and the main frame of this utility model;
[0021] Figure 4 For the present utility model Figure 2 A magnified view of a portion of area A.
[0022] In the diagram: 1. Main frame; 2. Mounting cavity; 3. Light absorption plate; 4. Floating platform; 5. Porous sponge; 6. Mounting groove; 7. Counterweight; 8. Through hole; 9. Protruding structure; 10. Insertion hole; 11. Telescopic cavity; 12. Pin; 13. Compression spring; 14. Pulley; 15. Flexible pad; 16. Dustproof net; 17. Heat insulation film; 18. Connecting groove; 19. Connecting frame; 20. Water vapor separation membrane. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figure 1-4This utility model provides an embodiment of a modular photothermal interface evaporator, comprising a frame body 1 and a connecting frame 19. The top of the frame body 1 has an installation cavity 2, inside which a light-absorbing plate 3 is installed. A floating platform 4 is fixedly installed on the lower exterior of the frame body 1. A porous sponge 5 is fixedly installed below the floating platform 4, and the porous sponge 5 is connected to the floating platform 4. The upper end of the porous sponge 5 is located below the light-absorbing plate 3. A through hole 8 is provided on the frame body 1, and the through hole 8 is located below the installation cavity 2. The frame body 1 has two connecting grooves 18 on its side wall. The two connecting grooves 18 are located on both sides of the frame body 1. The connecting frame 19 is correspondingly provided with the connecting grooves 18 and is slidably connected with the frame body 1. The upper end of the porous sponge 5 is provided with multiple protruding structures 9. The protruding structures 9 are equidistantly provided at the upper end of the porous sponge 5. The protruding structures 9 are integrated with the porous sponge 5 and are conical. The cross section of the connecting groove 18 is T-shaped and the connecting frame 19 is I-shaped.
[0025] In use: The light absorption plate 3 converts the irradiated light energy into heat energy. The porous sponge 5 is placed in the water body. The water is absorbed and conducted to the photothermal interface through the porous sponge 5, which heats and evaporates the water in the photothermal interface, causing it to undergo a phase change into water vapor. The generated water vapor is discharged from the through hole 8. The two ends of the connecting frame 19 are aligned with the connecting groove 18 on the side wall of the frame body 1 and inserted for connection, which can splice two evaporators into one. According to the above assembly method, multiple evaporators can be spliced together for use, so as to flexibly adjust the water production.
[0026] Please see Figure 1 and Figure 3 The light-absorbing plate 3 has two insertion holes 10 on its side wall, located on opposite sides of the light-absorbing plate 3. The frame body 1 has a telescopic cavity 11 connected to the mounting cavity 2. A pin 12 is slidably installed inside the telescopic cavity 11, corresponding to the insertion hole 10. A compression spring 13 is slidably installed inside the telescopic cavity 11, with its two ends fixedly connected to the frame body 1 and the pin 12, respectively. A lever 14 is slidably installed inside the telescopic cavity 11. Furthermore, the push block 14 is fixedly connected to the pin 12, and a flexible pad 15 is fixedly installed at the bottom of the mounting cavity 2. The compression spring 13 applies a pushing force to the pin 12, and under the action of the pushing force, one end of the pin 12 is aligned with the insertion hole 10 and pushed in, limiting the light absorption plate 3 installed in the mounting cavity 2 to ensure the firmness of the installed light absorption plate 3. By pulling the pin 12 through the push block 14, the pin 12 is pulled out from the insertion hole 10, which facilitates the installation and removal of the light absorption plate 3. The flexible pad 15 wraps the edge of the light absorption plate 3, which plays a protective role for the installed light absorption plate 3.
[0027] Please see Figure 3A dustproof net 16 and a water vapor separation membrane 20 are fixedly installed inside the through hole 8, and the water vapor separation membrane 20 is located inside the dustproof net 16. A heat insulation membrane 17 is attached to the inner wall of the frame body 1. The water vapor separation membrane 20 filters the water vapor to be discharged, allowing only water vapor to be discharged. The heat insulation membrane 17 prevents heat from being dissipated to the surroundings, so that the heat is concentrated at the evaporation interface, thereby achieving a highly efficient water evaporation process.
[0028] Please see Figure 1 and Figure 2 The upper end of the floating platform 4 is provided with an installation groove 6. There are four installation grooves 6, and the four installation grooves 6 are equidistantly arranged at the upper end of the floating platform 4. A counterweight 7 is slidably installed inside the installation groove 6. The counterweight 7 is inserted into the installation groove 6 to increase the weight of the floating platform 4, improve the stability of the evaporator floating on the water, and prevent the evaporator from overturning.
[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular photothermal interface evaporator, comprising a frame body (1) and a connecting frame (19), characterized in that: The frame body (1) has an installation cavity (2) at its top. A light-absorbing plate (3) is installed inside the installation cavity (2). A floating platform (4) is fixedly installed on the lower part of the frame body (1). A porous sponge (5) is fixedly installed below the floating platform (4) and the porous sponge (5) is connected to the floating platform (4). The upper end of the porous sponge (5) is located below the light-absorbing plate (3). A through hole (8) is provided on the frame body (1) and is located below the installation cavity (2). A connecting groove (18) is provided on the side wall of the frame body (1). There are two connecting grooves (18) and the two connecting grooves (18) are located on both sides of the frame body (1). A connecting frame (19) is provided corresponding to the connecting groove (18) and is slidably connected to the frame body (1).
2. The modular photothermal interface evaporator according to claim 1, characterized in that: The upper end of the porous sponge (5) is equipped with a plurality of protrusions (9), and the protrusions (9) are equidistantly arranged at the upper end of the porous sponge (5). The protrusions (9) are integrated with the porous sponge (5), and the protrusions (9) are arranged in a conical shape.
3. The modular photothermal interface evaporator according to claim 1, characterized in that: The cross-section of the connecting groove (18) is T-shaped, and the connecting frame (19) is I-shaped.
4. A modular photothermal interface evaporator according to claim 1, characterized in that: The light absorption plate (3) has two insertion holes (10) on its side wall, and the two insertion holes (10) are located on both sides of the light absorption plate (3). The frame body (1) has a telescopic cavity (11) inside, and the telescopic cavity (11) is connected to the mounting cavity (2). A pin (12) is slidably installed inside the telescopic cavity (11), and the pin (12) is correspondingly installed to the insertion hole (10). A compression spring (13) is slidably installed inside the telescopic cavity (11), and the two ends of the compression spring (13) are fixedly connected to the frame body (1) and the pin (12) respectively. A lever (14) is slidably installed inside the telescopic cavity (11), and the lever (14) is fixedly connected to the pin (12).
5. A modular photothermal interface evaporator according to claim 1, characterized in that: A flexible pad (15) is fixedly installed at the bottom of the mounting cavity (2).
6. A modular photothermal interface evaporator according to claim 1, characterized in that: A dustproof net (16) and a water vapor separation membrane (20) are fixedly installed inside the through hole (8), and the water vapor separation membrane (20) is located inside the dustproof net (16).
7. A modular photothermal interface evaporator according to claim 1, characterized in that: A heat insulation film (17) is attached to the inner wall of the frame body (1).
8. A modular photothermal interface evaporator according to claim 1, characterized in that: The upper end of the floating platform (4) is provided with an installation groove (6), and there are four installation grooves (6), which are equidistantly arranged at the upper end of the floating platform (4). A counterweight (7) is slidably installed inside the installation groove (6).