Solar interface evaporation device

Abstract

The present disclosure relates to the technical field of solar evaporation, and particularly relates to a solar interfacial evaporation device, comprising: a liquid reservoir, the liquid reservoir comprising a liquid storage tank for storing a liquid containing water; a rotary driving mechanism, the rotary driving mechanism comprising a rotary driving assembly, a first roller and a second roller, the rotary driving assembly being connected with the first roller or the second roller to drive the first roller or the second roller to rotate, the first roller being located in the liquid storage tank and being lower than a liquid level of the liquid, and the second roller being located outside the liquid storage tank, or the second roller being located in the liquid storage tank and being higher than the liquid level; and a solar interfacial evaporator, the solar interfacial evaporator being a flexible film, the flexible film being connected head to tail to form a ring shape, and the flexible film being at least tensioned between the first roller and the second roller.

Description

Technical Field

[0001] This disclosure relates to the field of solar evaporation technology, and more particularly to solar interface evaporation devices. Background Technology

[0002] Solar energy has garnered significant attention as a sustainable and environmentally friendly energy source. It is currently being applied in water treatment processes such as water purification and seawater desalination.

[0003] In recent years, solar interface evaporators have been extensively studied. They mainly consist of a photothermal conversion layer and a carrier layer. The photothermal conversion layer is stacked on the carrier layer, which can float on the water surface and transport water to the interface between the photothermal conversion layer and the carrier layer. The photothermal conversion layer converts solar energy into thermal energy and heats the water at the interface to make it evaporate.

[0004] In related technologies, solar interface evaporators have the following problems: (1) After water evaporates on the interface, salt will accumulate on the interface and form a crystal layer, which will lead to a decrease in the evaporation rate; (2) The transmission between water and the interface is blocked. Summary of the Invention

[0005] The purpose of this disclosure is to provide a solar interface evaporation device that can reduce the formation of a crystalline layer and improve the transport capacity between water and the interface.

[0006] To achieve the above objectives, this disclosure provides a solar interface evaporation apparatus, comprising:

[0007] A liquid storage device, comprising a storage tank for storing a liquid containing water;

[0008] A rotary drive mechanism, comprising a rotary drive assembly, a first roller, and a second roller, wherein the rotary drive assembly is connected to the first roller or the second roller to drive the first roller or the second roller to rotate, wherein the first roller is located inside the liquid storage tank and below the liquid level, and the second roller is located outside the liquid storage tank, or the second roller is located inside the liquid storage tank and above the liquid level; and

[0009] A solar interface evaporator, wherein the solar interface evaporator is a flexible film, the flexible film being connected end to end to form a ring, and the flexible film being at least stretched between the first roller and the second roller.

[0010] Compared with the prior art, this disclosure includes at least the following beneficial effects:

[0011] The rotary drive assembly can drive the solar interface evaporator to rotate between the first and second rollers, causing the portion of the solar interface evaporator closer to the first roller to come into contact with the liquid and move relative to it. This washes away salts on the interface, reducing the formation of a crystal layer, and simultaneously provides water to the interface. Conversely, the portion of the solar interface evaporator closer to the second roller does not come into contact with the liquid, thus allowing water on the interface to evaporate under solar energy.

[0012] In summary, the solar interface evaporation device according to this disclosure reduces the formation of a crystallization layer and improves the transport capacity between water and the interface. Attached Figure Description

[0013] Figure 1 A schematic diagram of a solar interface evaporation apparatus according to an embodiment of the present disclosure is shown.

[0014] Figure 2 A schematic diagram of a solar interface evaporation apparatus according to an embodiment of the present disclosure is shown, wherein the solar interface evaporator has been removed.

[0015] Figure 3 It shows Figure 2 A magnified view of a portion of point A in the middle.

[0016] Figure 4 A schematic diagram of a third roller, a horizontal guide rail assembly, and a second locking assembly according to an embodiment of the present disclosure is shown.

[0017] Figure label:

[0018] 10. Liquid reservoir; 11. Liquid tank; 12. Opening; 13. Valve;

[0019] 20. Rotary drive mechanism; 21. Rotary drive assembly; 211. Motor; 212. Drive wheel; 213. Driven wheel; 214. Belt; 22. First roller; 23. Second roller; 231. First support base; 24. Third roller; 241. Second support base;

[0020] 30. Solar interface evaporator; 31. Inclined surface;

[0021] 40. Vertical guide rail assembly; 41. Vertical guide rail; 42. Vertical slider;

[0022] 50. First locking assembly; 51. First mounting base; 511. First gripper; 512. Second gripper; 52. First fastener;

[0023] 60. Horizontal guide rail assembly; 61. Horizontal guide rail; 62. Horizontal slider;

[0024] 70. Second locking assembly; 71. Second mounting base; 711. Third gripper; 712. Fourth gripper; 72. Second fastener. Detailed Implementation

[0025] The technical solutions of this disclosure will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this disclosure and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this disclosure are shown in the accompanying drawings, and not all of them.

[0026] This disclosure defines certain directional terms. Unless otherwise stated, the directional terms used, such as "up," "down," "left," "right," "inner," and "outer," are used for ease of understanding and therefore do not constitute a limitation on the scope of protection of this disclosure.

[0027] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this disclosure, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] This disclosure relates to a solar-powered interfacial evaporation device that can evaporate water driven by solar energy. As an example, the solar-powered interfacial evaporation device can be applied to water purification or seawater desalination. Specifically, the solar-powered interfacial evaporation device can purify high-salinity wastewater generated in the chemical industry.

[0030] like Figure 1 and Figure 2 As shown, the solar interface evaporation device includes a liquid storage tank 10, a rotary drive mechanism 20, and a solar interface evaporator 30.

[0031] like Figure 2 As shown, the liquid reservoir 10 includes a liquid storage tank 11 for storing liquid containing water (not shown).

[0032] Specifically, the liquid reservoir 10 can be a frame with an opening 12 at the top and a hollow interior. The hollow space inside the frame is the liquid storage tank 11, which is connected to the external space through the opening 12. The shape of the frame is not limited; for example, it can be a cuboid.

[0033] The liquid contains water; for example, the liquid could be high-salt wastewater or seawater. The upper surface of the liquid forms a level within the storage tank 11.

[0034] Optionally, a valve 13 may be provided on one side of the bottom of the liquid storage tank 11 to discharge the liquid in the liquid storage tank 11.

[0035] like Figure 1 and Figure 2 As shown, the rotary drive mechanism 20 includes a rotary drive assembly 21, a first roller 22, and a second roller 23.

[0036] exist Figure 1 and Figure 2 In the original embodiment, the rotary drive assembly 21 is connected to the first roller 22 to drive the first roller 22 to rotate. However, in an embodiment not shown, the rotary drive assembly 21 may be connected to the second roller 23 to drive the second roller 23 to rotate. That is, the rotary drive assembly 21 is connected to either the first roller 22 or the second roller 23 to drive either the first roller 22 or the second roller 23 to rotate.

[0037] like Figure 1 and Figure 2 As shown, the first roller 22 is located inside the liquid storage tank 11, and the second roller 23 is located outside the liquid storage tank 11, with the first roller 22 below the liquid level. However, in an embodiment not shown, both the first roller 22 and the second roller 23 may be located inside the liquid storage tank 11, with the first roller 22 below the liquid level and the second roller 23 above the liquid level. That is, the first roller 22 is submerged in the liquid, while the second roller 23 is not submerged. Generally, the height of the second roller 23 is greater than the height of the first roller 22.

[0038] In addition, such as Figure 1 and Figure 2 As shown, the first roller 22 and the second roller 23 can be in the same vertical plane, that is, the second roller 23 can be located directly above the first roller 22. However, in an embodiment not shown, the second roller 23 can also be located diagonally above the first roller 22.

[0039] like Figure 1 As shown, the solar interface evaporator 30 is a flexible thin film, with the flexible thin film connected end to end to form a ring, and the flexible thin film is at least stretched between the first roller 22 and the second roller 23.

[0040] It should be noted that the structure and preparation method of the flexible thin film are known. For example, the flexible thin film includes a photothermal conversion layer and a carrier layer stacked on one side of the photothermal conversion layer. The photothermal conversion layer is used to absorb sunlight and convert solar energy into thermal energy. The carrier layer is used to absorb water and transport the water to the interface between the carrier layer and the photothermal conversion layer, where the water absorbs heat and evaporates.

[0041] For example, the material of the photothermal conversion layer can be selected from: noble metal nanoparticles with plasma effects, such as Au NPs, Pd NPs, etc.; narrowband semiconductor materials, such as carbon materials, etc.; black titanium dioxide, which has good light absorption and photothermal conversion efficiency; polyaniline (PANI), which has high conductivity, flexibility, chemical stability and excellent light absorption performance; polypyridine (PPy), which has good photothermal conversion ability and unique bio-inspired structure; MXene materials, such as Ti3C2T x Nanosheets; biomass composite materials, such as willow catkin / polyaniline / copper oxide composite fibers, have excellent hydrophobicity and photothermal conversion capabilities.

[0042] The carrier layer is responsible for water transport and isolating the photothermal conversion layer from the water. The carrier layer has the following properties: good hydrophilicity for efficient water transport; low thermal conductivity to promote photothermal evaporation through thermal confinement effect; high thermal diffusivity to facilitate heat conduction on the surface; good stability to remain stable under different acid and alkaline conditions; excellent mechanical properties to improve the service life of the evaporator; and low cost, which is an important factor in reducing water treatment costs.

[0043] For example, the carrier layer can be selected from polybenzimidazole (PBI), polyimide materials, polydimethylsiloxane (PDMS), polyurethane (PU), polystyrene (PS) foam, melamine foam, natural plant fibers and polydopamine (PDA), non-woven fabric, filter cloth, and 3D super-strong paper. Preferably, the carrier layer can be selected from non-woven fabric, filter cloth, and 3D super-strong paper to achieve optimal water transport and evaporation effects.

[0044] Therefore, according to the solar interface evaporation apparatus of this disclosure, when the rotary drive assembly 21 drives the first roller 22 to rotate, the flexible film rotates between the first roller 22 and the second roller 23 under the drive of the first roller 22. Thus, the portion of the flexible film near the first roller 22 comes into contact with the liquid and moves relative to the liquid, while the portion of the flexible film near the second roller 23 does not come into contact with the liquid. In this way, the portion of the flexible film near the first roller 22 can absorb water from the liquid, and due to the movement between the flexible film and the liquid, salt in the interface can be washed away, reducing the formation of a crystal layer; the portion of the flexible film near the second roller 23 comes into contact with air and can evaporate the water in the interface under the drive of solar energy.

[0045] In summary, the solar interface evaporation device according to this disclosure reduces the formation of a crystallization layer and improves the transport capacity between water and the interface.

[0046] In some implementations, such as Figure 2 As shown, the solar interface evaporation device may include a vertical guide rail assembly 40. A second roller 23 may be disposed on the vertical guide rail assembly 40, and the distance between the second roller 23 and the liquid surface can be adjusted via the vertical guide rail assembly 40.

[0047] like Figure 2 and Figure 3 As shown, the vertical guide rail assembly 40 includes a vertical guide rail 41 and a vertical slider 42. The lower end of the vertical guide rail 41 can be disposed on the outer wall surface of the liquid reservoir 10, and the upper end of the vertical guide rail 41 is higher than the liquid reservoir 11. The vertical slider 42 is slidably disposed on the vertical guide rail 41. The end of the second roller 23 is rotatably inserted into the first support base 231, and the first support base 231 is fixedly disposed on the vertical slider 42. Thus, by sliding the vertical slider 42 on the vertical guide rail 41, the second roller 23 can move in the vertical direction, thereby adjusting the distance between the second roller 23 and the liquid surface.

[0048] like Figure 3 As shown, the solar interface evaporation device also includes a first locking assembly 50, which is used to lock or unlock the second roller 23 to the vertical guide rail assembly 40. The first locking assembly 50 has a first open state and a first locked state. In the first open state, the second roller 23 and the first support 231 are allowed to move on the vertical guide rail assembly 40. In the first locked state, the second roller 23 and the first support 231 are fixed to the vertical guide rail assembly 40 and cannot move relative to the vertical guide rail assembly 40.

[0049] like Figure 3As shown, the first locking assembly 50 can be disposed between the vertical slider 42 and the first support base 231. Specifically, the first locking assembly 50 includes a first mounting base 51 and a first fastener 52. The first mounting base 51 is fixedly disposed between the vertical slider 42 and the first support base 231, and one end of the first mounting base 51 ( Figure 3 A first gripper 511 and a second gripper 512 extend from the upper middle end of the vertical guide rail 41, and are positioned on opposite sides of the vertical guide rail 41. A first fastener 52 is connected to the first gripper 511 and the second gripper 512. Figure 3 As shown, in the first locked state, the first fastener 52 controls the first jaw 511 and the second jaw 512 to clamp onto the vertical guide rail 41.

[0050] By controlling the first fastener 52, the first gripper 511 and the second gripper 512 can be clamped onto the vertical guide rail 41, thereby fixing the first mounting base 51 and the vertical guide rail 41 relative to each other. Consequently, the vertical slider 42 and the first support base 231 connected to the first mounting base 51 are fixed relative to the vertical guide rail 41, thus achieving locking between the second roller 23 and the vertical guide rail 41. Conversely, when the first fastener 52 controls the first gripper 511 and the second gripper 512 to release from the vertical guide rail 41, the second roller 23 can slide relative to the vertical guide rail 41.

[0051] As an example, the first fastener 52 may be provided with threads, and the first jaw 511 and the second jaw 512 may be provided with threaded holes. By screwing the first fastener 52, the first jaw 511 and the second jaw 512 can be controlled to move closer or further away from each other, thereby achieving the clamping or loosening of the first jaw 511 and the second jaw 512.

[0052] In some implementations, such as Figure 1 and Figure 2 As shown, the rotary drive mechanism 20 also includes at least one third roller 24. Specifically, in Figure 1 and Figure 2 The image shows two third rollers 24. A solar interface evaporator 30 (i.e., a flexible thin film) is connected between the first roller 22, the second roller 23, and the third roller 24.

[0053] For example, the third roller 24 may be disposed at the opening 12 of the liquid storage tank 11.

[0054] The height of the third roller 24 may or may not be equal to the height of the second roller 23. For example, in Figure 1 In the middle, the second roller 23 is higher than the third roller 24.

[0055] Furthermore, the third roller 24 and the second roller 23 may not be in the vertical plane, so that a portion of the solar interface evaporator 30 forms an inclined surface 31 (see Figure 1 By setting the inclined surface 31, the solar interface evaporator 30 can obtain a larger effective evaporation area, making efficient use of solar energy and reducing the footprint.

[0056] In some implementations, such as Figure 1 and Figure 2 As shown, the solar interface evaporation device also includes a horizontal guide rail assembly 60. The third roller 24 can be disposed on the horizontal guide rail assembly 60, and the tilt angle of the inclined plane 31 can be adjusted by adjusting the horizontal distance between the third roller 24 and the second roller 23.

[0057] like Figure 4 As shown, the horizontal guide rail assembly 60 includes a horizontal guide rail 61 and a horizontal slider 62. The horizontal guide rail 61 is disposed in the opening 12. The horizontal slider 62 is slidably disposed on the horizontal guide rail 61. The end of the third roller 24 is rotatably inserted into the second support 241, and the second support 241 is fixedly disposed on the horizontal slider 62. Thus, by sliding the horizontal slider 62 on the horizontal guide rail 61, the third roller 24 can move in the horizontal direction, thereby adjusting the horizontal distance between the third roller 24 and the second roller 23.

[0058] like Figure 4 As shown, the solar interface evaporation device also includes a second locking assembly 70, which is used to lock or unlock the third roller 24 to the horizontal guide rail assembly 60. The second locking assembly 70 has a second open state and a second locked state. In the second open state, the third roller 24 and the second support 241 are allowed to move on the horizontal guide rail assembly 60. In the second locked state, the third roller 24 and the second support 241 are fixed to the horizontal guide rail assembly 60 and cannot move relative to the horizontal guide rail assembly 60.

[0059] like Figure 4 As shown, the second locking assembly 70 can be disposed between the horizontal slider 62 and the second support 241. Specifically, the second locking assembly 70 includes a second mounting base 71 and a second fastener 72. The second mounting base 71 is fixedly disposed between the horizontal slider 62 and the second support 241, and one end of the second mounting base 71 ( Figure 4 A third gripper 711 and a fourth gripper 712 extend from the front end of the horizontal guide rail 61, and are positioned on opposite sides of the horizontal guide rail 61. A second fastener 72 is connected to the third gripper 711 and the fourth gripper 712. Figure 4 As shown, in the second locked state, the second fastener 72 controls the third jaw 711 and the fourth jaw 712 to clamp onto the horizontal guide rail 61.

[0060] By controlling the second fastener 72, the third gripper 711 and the fourth gripper 712 can be clamped onto the horizontal guide rail 61, thereby fixing the second mounting base 71 and the horizontal guide rail 61 relative to each other. Consequently, the horizontal slider 62 and the second support base 241 connected to the second mounting base 71 are both fixed relative to the horizontal guide rail 61, thus achieving locking between the third roller 24 and the horizontal guide rail 61. Conversely, when the second fastener 72 controls the third gripper 711 and the fourth gripper 712 to release from the vertical guide rail 41, the third roller 24 can slide relative to the horizontal guide rail 61.

[0061] As an example, the second fastener 72 may be provided with threads, and the third jaw 711 and the fourth jaw 712 may be provided with threaded holes. By screwing the second fastener 72, the third jaw 711 and the fourth jaw 712 can be controlled to move closer or further away from each other, thereby achieving the clamping or loosening of the third jaw 711 and the fourth jaw 712.

[0062] Although this disclosure has been described in detail above with general descriptions, specific embodiments, and experiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, such modifications or improvements made without departing from the spirit of this disclosure are all within the scope of protection claimed by this disclosure.

Claims

1. A solar-powered interfacial evaporation device, characterized in that, include: The liquid reservoir (10) includes a liquid storage tank (11) for storing liquid containing water; A rotary drive mechanism (20) includes a rotary drive assembly (21), a first roller (22), a second roller (23), and at least one third roller (24). The rotary drive assembly (21) is connected to the first roller (22) or the second roller (23) to drive the first roller (22) or the second roller (23) to rotate. The first roller (22) is located inside the liquid storage tank (11) and below the liquid level. The second roller (23) is located outside the liquid storage tank (11), or the second roller (23) is located inside the liquid storage tank (11) and above the liquid level. The third roller (24) is disposed at the opening (12) of the liquid storage tank (11). A solar interface evaporator (30) is a flexible thin film. The flexible thin film is connected end to end to form a ring. The flexible thin film is at least stretched between the first roller (22), the second roller (23) and the third roller (24). The flexible thin film is connected between the first roller (22), the second roller (23) and the third roller (24). The flexible thin film includes a photothermal conversion layer and a carrier layer stacked on one side of the photothermal conversion layer. A vertical guide rail assembly (40) includes a vertical guide rail (41) and a vertical slider (42). The upper end of the vertical guide rail (41) is higher than the liquid storage tank (11). The vertical slider (42) is slidably disposed on the vertical guide rail (41). The first support seat (231) of the second roller (23) is fixedly disposed on the vertical slider (42). A horizontal guide rail assembly (60) includes a horizontal guide rail (61) and a horizontal slider (62). The horizontal guide rail (61) is disposed in the opening (12), and the horizontal slider (62) is slidably disposed on the horizontal guide rail (61). The second support seat (241) of the third roller (24) is fixedly disposed on the horizontal slider (62).

2. The solar interface evaporation device according to claim 1, characterized in that, The solar interface evaporation device also includes: A first locking assembly (50) is disposed between the vertical slider (42) and the first support base (231). The first locking assembly (50) has a first open state and a first locked state. In the first open state, the first support base (231) is movable relative to the vertical guide rail (41). In the first locked state, the first support base (231) is fixedly disposed relative to the vertical guide rail (41).

3. The solar interface evaporation device according to claim 2, characterized in that, The first locking component (50) includes: A first mounting base (51) is fixedly disposed between the vertical slider (42) and the first support base (231). One end of the first mounting base (51) extends into a first gripper (511) and a second gripper (512). The first gripper (511) and the second gripper (512) are disposed on opposite sides of the vertical guide rail (41). The first fastener (52) is connected to the first jaw (511) and the second jaw (512). In the first locked state, the first fastener (52) controls the first jaw (511) and the second jaw (512) to clamp on the vertical guide rail (41).

4. The solar interface evaporation device according to claim 1, characterized in that, The solar interface evaporation device also includes: The second locking assembly (70) is disposed between the horizontal slider (62) and the second support base (241), and the second locking assembly (70) has a second open state and a second locked state. In the second open state, the second support base (241) is movable relative to the horizontal guide rail (61). In the second locked state, the second support (241) is fixedly disposed relative to the horizontal guide rail (61).

5. The solar interface evaporation device according to claim 4, characterized in that, The second locking assembly (70) includes: A second mounting base (71) is fixedly disposed between the horizontal slider (62) and the second support base (241). A third clamping jaw (711) and a fourth clamping jaw (712) extend from one end of the second mounting base (71), and the third clamping jaw (711) and the fourth clamping jaw (712) are disposed on opposite sides of the horizontal guide rail (61). The second fastener (72) is connected to the third jaw (711) and the fourth jaw (712). In the second locking state, the second fastener (72) controls the third jaw (711) and the fourth jaw (712) to clamp on the horizontal guide rail (61).

6. The solar interface evaporation device according to claim 1, characterized in that, The material of the carrier layer is selected from one of non-woven fabric, filter cloth and 3D super-strong paper.

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