Photo-thermal / photovoltaic co-driven efficient solar interface water evaporation and condensation device

Abstract

The invention discloses a photo-thermal / photovoltaic co-driven efficient solar interface water evaporation and condensation device, and belongs to the technical field of new energy and water resource treatment. The device comprises a double-layer light-transmitting glass cover, a water storage base and a water evaporation-condensation device, the double-layer light-transmitting glass cover is installed at the top of the water storage base, and the water storage base is mainly composed of an internal water storage area and an external water storage area; the water evaporation-condensation device is mainly composed of a condenser, a heat insulation cofferdam, a water guide layer, an upper refrigeration piece, a refrigeration heat conduction bridge, a lower refrigeration piece and a heating heat conduction bridge. The device is scientific in design, ingenious in structure, easy to maintain and convenient to use, the evaporation and condensation processes of the device are extremely stable, rapid and efficient, the water treatment time is remarkably shortened, the water treatment efficiency is greatly improved, and the water treatment cost is reduced. Therefore, the problems that an existing solar interface water evaporator is low in vapor condensation efficiency, vapor condensation shading is achieved, and the water evaporation rate is limited by a theoretical extreme value are thoroughly solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy and water resource treatment, and specifically relates to a high-efficiency solar interfacial water evaporation and condensation device driven by photo-thermal / photovoltaic co-driving. Background Art

[0002] With the increasingly severe problems of global warming and water resource shortage, the development of green and efficient water treatment technologies has become increasingly urgent.

[0003] As a clean and renewable energy source, solar energy has broad application prospects in the field of water treatment. In recent years, solar interfacial water evaporation technology, as a new type of water treatment technology, has received extensive attention. This technology uses a water-air interface photothermal material to convert solar energy into heat energy while reducing heat conduction loss, and has the advantage of high water evaporation rate. This technology also has the characteristics of low cost, simple operation and environmental friendliness, and shows great application potential in the field of water treatment. Combining the technical characteristics of solar interfacial water evaporation, the design of solar interfacial water evaporators has been continuously improved, and a variety of solar evaporators such as separated solar evaporators, multi-stage solar evaporators, three-dimensional solar evaporators and electro-assisted solar evaporators have emerged, and the water evaporation rate has been significantly improved.

[0004] However, currently, the design of solar interfacial water evaporators mostly focuses on improving the water evaporation rate, and its water treatment efficiency is also affected by the water vapor condensation rate. The improvement of the water condensation rate is gradually becoming one of the important technical problems restricting the development of solar water evaporation technology. At present, in many solar interfacial water evaporators, water vapor condenses on the transparent glass cover, and the formation of a large number of condensed water droplets will cause the light transmittance of the glass cover to decrease, thereby causing the water evaporation rate to decrease. This is also an important technical problem that plagues the design of solar interfacial water evaporators. In addition, for two-dimensional photo-thermal water evaporation films, their water evaporation rate is limited by the theoretical extreme value of 1.46 kg•m -2 •h -1 Therefore, new solutions need to be found to further improve their water evaporation rate.

[0005] Therefore, aiming at the above deficiencies existing in the current solar interfacial water evaporation technology, we urgently need to develop a new device to overcome the above technical problems, so as to efficiently utilize solar energy and improve water treatment efficiency. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems of low water vapor condensation efficiency, water vapor condensation shading and water evaporation rate limited by the theoretical extreme value in the solar interfacial water evaporation technology mentioned in the above background art, and to provide a newly designed high-efficiency solar interfacial water evaporation and condensation device driven by photo-thermal / photovoltaic co-driving.

[0007] The present invention is realized through the following technical solutions: An efficient solar interface water evaporation and condensation device driven by both photothermal and photovoltaic energy, comprising a double-layer light-transmitting glass cover, a water storage base, and a water evaporation-condensation device.

[0008] The double-layer light-transmitting glass cover includes an inner cover and an outer cover arranged in a nested manner. A hollow sealed layer is formed between the inner cover and the outer cover, and heat-conducting copper wires are arranged in the hollow sealed layer.

[0009] The water storage base includes an internal water storage area for storing raw water and an external water storage area for storing distilled water, which are arranged in a nested manner. The bottom ends of the internal water storage area and the external water storage area are closed, and the top ends are open; a first drain port with a valve is connected to the bottom of the side wall of the internal water storage area, and the first drain port passes through the external water storage area and extends to the outside of the water storage base; a second drain port with a valve is connected to the bottom of the side wall of the external water storage area, and an annular card slot is installed at the top of the external water storage area.

[0010] The water evaporation-condensation device includes a condenser, a heat insulation cofferdam, a water guiding layer, an upper refrigeration sheet, a refrigeration heat conduction bridge, a lower refrigeration sheet, and a heating heat conduction bridge, which are arranged in sequence from top to bottom; cold-conducting copper wires are arranged in the condenser, the bottom surface of the heat insulation cofferdam abuts against the top surface of the water guiding layer, multi-dimensional photothermal water evaporation materials are placed in the heat insulation cofferdam, the hot surface of the upper refrigeration sheet faces upward and abuts against the bottom surface of the water guiding layer, the cold surface of the upper refrigeration sheet faces downward and abuts against the top surface of the refrigeration heat conduction bridge, the periphery of the refrigeration heat conduction bridge is fixedly connected to the periphery of the condenser, the refrigeration heat conduction bridge is connected to the cold-conducting copper wires in the condenser, the heat insulation cofferdam, the water guiding layer, and the upper refrigeration sheet are all placed inside the condenser, the cold surface of the lower refrigeration sheet faces upward and abuts against the bottom surface of the refrigeration heat conduction bridge, the hot surface of the lower refrigeration sheet faces downward and abuts against the top surface of the heating heat conduction bridge, and the heat insulation cofferdam, the upper refrigeration sheet, the refrigeration heat conduction bridge, the lower refrigeration sheet, and the heating heat conduction bridge are connected and fixed by first fastening screws.

[0011] The cover opening at the bottom of the double-layer light-transmitting glass cover is hermetically embedded in the annular card slot at the top of the water storage base. The refrigeration heat conduction bridge and the heating heat conduction bridge of the water evaporation-condensation device are respectively fixedly connected to the top of the internal water storage area of the water storage base through second fastening screws. The periphery of the heating heat conduction bridge is embedded in the annular card slot and is connected to the heat-conducting copper wires in the double-layer light-transmitting glass cover. The bottom periphery of the condenser is positioned right opposite the open position at the top of the external water storage area.

[0012] Furthermore, the water storage base is made of organic glass with high light transmittance, high chemical stability, and high strength.

[0013] Furthermore, the condenser is a quartz condenser, its outer shape is frustum-shaped, it has an open top plate at the top, its bottom is open, a number of air guide holes are evenly arranged on its side wall, cold-conducting copper wires are assembled on the inner surface of its side wall, and the outer surface of its side wall is a mirror design.

[0014] Furthermore, the heat insulation cofferdam adopts a rectangular frame structure, and its interior is used to place the multi-dimensional light, heat and water evaporation material. Screw holes for connecting the first fastening screws are provided at the middle positions of its four frame edges.

[0015] Furthermore, the water guide layer is made of non-woven fabric, and it includes a rectangular surface in the middle. A water delivery strip is respectively arranged at each of the four corners of the rectangular surface; the rectangular surface is sandwiched between the heat insulation cofferdam and the upper refrigerating sheet, and the size of the rectangular surface is the same as and fits the inner frame opening at the bottom of the heat insulation cofferdam. The four water delivery strips extend downward into the inner water storage area of the water storage base.

[0016] Furthermore, the upper refrigerating sheet adopts a rectangular sheet structure, and its size is the same as and fits the rectangular surface of the water guide layer; connection ears for passing through the first fastening screws are respectively arranged at the middle positions of the four sides of the upper refrigerating sheet, and the four connection ears fit the four screw holes on the heat insulation cofferdam.

[0017] Furthermore, the refrigerating heat conduction bridge includes a rectangular refrigerating block. Refrigerating plates are respectively arranged at the middle positions of the four sides of the rectangular refrigerating block. The outer ends of the four refrigerating plates are fixedly connected to the bottom periphery of the condenser through resin glue; the size of the rectangular refrigerating block is the same as and fits the size of the upper refrigerating sheet. Connection holes for passing through the first fastening screws are respectively arranged at the inner ends of the four refrigerating plates, and the four connection holes fit the four connection ears on the upper refrigerating sheet.

[0018] Furthermore, the lower refrigerating sheet adopts a rectangular sheet structure, and its size is the same as and fits the rectangular refrigerating block of the refrigerating heat conduction bridge; connection ears for passing through the first fastening screws are respectively arranged at the middle positions of the four sides of the lower refrigerating sheet, and the four connection ears fit the four connection holes on the refrigerating heat conduction bridge.

[0019] Furthermore, the heating heat conduction bridge includes a rectangular heating block. Heating plates are respectively arranged at the positions of the four corners of the rectangular heating block. An n-shaped hanging plate is arranged at the outer end of each heating plate. The outer side plate of the n-shaped hanging plate is embedded in the annular card slot and connected to the heat conduction copper wire in the double-layer light-transmitting glass cover. The inner side plate of the n-shaped hanging plate is clamped on the inner surface of the side wall of the inner water storage area; the size of the rectangular heating block is the same as and fits the size of the lower refrigerating sheet. Connection ears for passing through the first fastening screws are respectively arranged at the middle positions of the four sides of the rectangular heating block, and the four connection ears fit the four connection ears on the lower refrigerating sheet.

[0020] Furthermore, the multi-dimensional light-heat-water evaporation material uses a photothermal thin film; the rectangular surface in the water conduction layer is in close contact with the top surface of the upper refrigerating sheet through a heat-conducting adhesive; the refrigerating heat-conducting bridge and the heating heat-conducting bridge are made of copper and are both wrapped with white heat-insulating tapes; the four refrigerating plates of the refrigerating heat-conducting bridge and the four heating plates of the heating heat-conducting bridge are arranged staggeredly, and the included angle between adjacent refrigerating plates and heating plates is 45°; the outer ends of the four refrigerating plates of the refrigerating heat-conducting bridge are respectively fixedly connected to the top of the internal water storage area of the water storage base through second fastening screws, and the top plates of the four N-shaped hanging plates of the heating heat-conducting bridge are respectively fixedly connected to the top of the internal water storage area of the water storage base through second fastening screws.

[0021] The device of the present invention is scientifically designed, ingeniously structured, simple to maintain and convenient to use. The evaporation and condensation processes of the device of the present invention are extremely stable, rapid and efficient, significantly shortening the water treatment time and greatly improving the water treatment efficiency, thus completely solving the problems of low water vapor condensation efficiency, water vapor condensation shading and water evaporation rate limited by the theoretical extreme value existing in the existing solar interface water evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly and completely illustrate the technical solutions in the present invention, the drawings used in the present invention will be briefly introduced below. Obviously, the schematic drawings of the present invention are only used to explain the present invention and do not constitute an improper limitation to the present invention. Without creative efforts, those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0023] Figure 1 It is a schematic external view of the device of the present invention.

[0024] Figure 2 It is an exploded perspective view from an oblique top-down of the device of the present invention.

[0025] Figure 3 It is an exploded perspective view from an oblique bottom-up of the device of the present invention.

[0026] Figure 4 It is a front view external view of the whole condenser and refrigerating heat-conducting bridge in the device of the present invention.

[0027] Figure 5 It is a schematic perspective view from an oblique top-down of the whole condenser and refrigerating heat-conducting bridge in the device of the present invention.

[0028] Figure 6 It is a schematic perspective view from an oblique bottom-up of the whole condenser and refrigerating heat-conducting bridge in the device of the present invention.

[0029] Figure 7 It is a schematic perspective view from an oblique top-down of the heat-insulating cofferdam in the device of the present invention.

[0030] Figure 8 It is a schematic perspective view from an oblique bottom-up of the heat-insulating cofferdam in the device of the present invention.

[0031] Figure 9 It is a schematic diagram of the water guide layer in the device of the present invention from an inclined top view.

[0032] Figure 10 It is a schematic diagram of the water guide layer in the device of the present invention from an inclined bottom view.

[0033] Figure 11 It is a schematic diagram of the upper / lower refrigerating sheets in the device of the present invention from an inclined top view.

[0034] Figure 12 It is a schematic diagram of the upper / lower refrigerating sheets in the device of the present invention from an inclined bottom view.

[0035] Figure 13 It is a schematic diagram of the heat-conducting bridge for heating in the device of the present invention from an inclined top view.

[0036] Figure 14 It is a schematic diagram of the heat-conducting bridge for heating in the device of the present invention from an inclined bottom view.

[0037] Figure 15 It is a sectional view of the water storage base in the device of the present invention.

[0038] In the figure: 1 - double-layer light-transmitting glass cover, 2 - water storage base, 3 - inner cover, 4 - outer cover, 5 - hollow sealing layer, 6 - internal water storage area, 7 - external water storage area, 8 - first drain port, 9 - second drain port, 10 - perforation, 11 - annular card slot, 12 - condenser, 13 - heat insulation cofferdam, 14 - water guide layer, 15 - upper refrigerating sheet, 16 - refrigerating heat-conducting bridge, 17 - lower refrigerating sheet, 18 - heat-conducting bridge for heating, 19 - air guide hole; 14-1 - rectangular surface, 14-2 - water delivery strip; 16-1 - rectangular refrigerating block, 16-2 - refrigerating plate; 18-1 - rectangular heating block, 18-2 - heating plate, 18-3 - n-shaped hanging plate. Detailed implementation manners

[0039] In order to enable those skilled in the art to better understand the present invention, the following further clearly and completely describes the present invention with reference to the accompanying drawings and in combination with embodiments. It should be noted that, without conflict, the implementation manners and the features in the embodiments in this application can be combined with each other. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] In the description of this embodiment, it should be understood that the orientation or positional relationships indicated by terms such as "inner", "outer", "periphery", etc. are based on the orientation or positional relationships shown in the drawings. These are only for convenience in describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] As Figures 1 to 15 shown, this embodiment provides a high-efficiency solar interface water evaporation and condensation device driven by both photothermal and photovoltaic means, including a double-layer light-transmitting glass cover 1, a water storage base 2, and a water evaporation-condensation device.

[0042] The double-layer light-transmitting glass cover 1 includes an inner cover 3 and an outer cover 4 arranged in a nested manner. A hollow sealed layer 5 is formed between the inner cover 3 and the outer cover 4. Heat-conducting copper wires are arranged in the hollow sealed layer 5 and extend out from the cover opening at the bottom of the double-layer light-transmitting glass cover 1. The heat-conducting copper wires are used to heat the double-layer light-transmitting glass cover 1.

[0043] The water storage base 2 includes an internal water storage area 6 for storing raw water and an external water storage area 7 for storing distilled water, which are arranged in a centrosymmetric nested manner. The bottom ends of the internal water storage area 6 and the external water storage area 7 are closed, and the top ends are open. A first drain port 8 with a valve is connected to the bottom of the side wall of the internal water storage area 6. The first drain port 8 passes through the external water storage area 7 and extends to the outside of the water storage base 2. A second drain port 9 with a valve is connected to the bottom of the side wall of the external water storage area 7. A perforation 10 for passing a cable is provided on the side wall of the external water storage area 7. An annular card slot 11 is installed on the top of the external water storage area 7, as Figure 15 shown. The water storage base 2 is made of organic glass with high light transmittance, high chemical stability, and high strength, which can prevent light scattering from interfering with the water evaporation-condensation process while ensuring the structural stability of the device, and can also observe the actual working conditions inside the device in real time.

[0044] The water evaporation-condensation device includes a condenser 12, a heat insulation cofferdam 13, a water guiding layer 14, an upper refrigeration sheet 15, a refrigeration heat conduction bridge 16, a lower refrigeration sheet 17, and a heating heat conduction bridge 18, which are arranged in sequence from top to bottom. The condenser 12 is provided with cold conduction copper wires. The bottom surface of the heat insulation cofferdam 13 abuts against the top surface of the water guiding layer 14. A multi-dimensional light-heat water evaporation material is placed inside the heat insulation cofferdam 13. The hot surface of the upper refrigeration sheet 15 faces upward and abuts against the bottom surface of the water guiding layer 14. The cold surface of the upper refrigeration sheet 15 faces downward and abuts against the top surface of the refrigeration heat conduction bridge 16. The periphery of the refrigeration heat conduction bridge 16 is fixedly connected to the periphery of the condenser 12. The refrigeration heat conduction bridge 16 is connected to the cold conduction copper wires inside the condenser 12. The heat insulation cofferdam 13, the water guiding layer 14, and the upper refrigeration sheet 15 are all placed inside the condenser 12. The cold surface of the lower refrigeration sheet 17 faces upward and abuts against the bottom surface of the refrigeration heat conduction bridge 16. The hot surface of the lower refrigeration sheet 17 faces downward and abuts against the top surface of the heating heat conduction bridge 18. The heat insulation cofferdam 13, the upper refrigeration sheet 15, the refrigeration heat conduction bridge 16, the lower refrigeration sheet 17, and the heating heat conduction bridge 18 are connected and fixed by first fastening screws to ensure that the heat insulation cofferdam 13, the upper refrigeration sheet 15, the refrigeration heat conduction bridge 16, the lower refrigeration sheet 17, and the heating heat conduction bridge 18 are closely and firmly connected. The first fastening screws are long screws made of plastic texture.

[0045] The bottom cover opening of the double-layer light-transmitting glass cover 1 is hermetically embedded in the annular card slot 11 at the top of the water storage base 2. The refrigeration heat conduction bridge 16 and the heating heat conduction bridge 18 of the water evaporation-condensation device are respectively fixedly connected to the top of the internal water storage area 6 of the water storage base 2 through second fastening screws. The second fastening screws are short screws made of plastic texture. The periphery of the heating heat conduction bridge 18 is embedded in the annular card slot 11 at the top of the water storage base 2 and is connected to the heat conduction copper wires in the double-layer light-transmitting glass cover 1. The bottom periphery of the condenser 12 is directly opposite to the open position at the top of the external water storage area 7 of the water storage base 2.

[0046] In the above water evaporation-condensation device, as Figures 4 to 6 shown, the condenser 12 is a quartz condenser, whose outer shape is frustum-shaped. It is provided with an open top plate at the top and is open at the bottom. The opening of the top plate is consistent with the water evaporation cross-section. A number of air guiding holes 19 are evenly arranged on its side wall for diverting water vapor to the surroundings. The inner surface of its side wall is equipped with cold conduction copper wires for cooling the condenser 12. The outer surface of its side wall is a mirror design, which can prevent the cold conduction copper wires inside the side wall from being exposed to light on the one hand, and can reflect sunlight to the double-layer light-transmitting glass cover 1 to increase its temperature on the other hand.

[0047] In the above water evaporation-condensation device, as Figure 7 and Figure 8As shown, the heat insulation cofferdam 13 adopts a rectangular frame structure. The interior of the heat insulation cofferdam 13 is used to place the multi-dimensional light, heat and water evaporation material, and the multi-dimensional light, heat and water evaporation material can adopt a photothermal film. At the middle positions of the four frame edges of the heat insulation cofferdam 13, screw holes for connecting the first fastening screws are provided.

[0048] In the above water evaporation-condensation device, as Figure 9 and Figure 10 shown, the water guide layer 14 is made of non-woven fabric, and it includes a rectangular surface 14-1 in the middle. At the four corners of the rectangular surface 14-1, a water delivery strip 14-2 is respectively arranged. The rectangular surface 14-1 is sandwiched between the heat insulation cofferdam 13 and the upper refrigerating sheet 15, and the rectangular surface 14-1 is in close contact with the top surface of the upper refrigerating sheet 15 through a heat-conducting adhesive. The size of the rectangular surface 14-1 is the same as and fits the inner frame opening at the bottom of the heat insulation cofferdam 13, and the four water delivery strips 14-2 extend downward into the internal water storage area 6 of the water storage base 2.

[0049] In the above water evaporation-condensation device, as Figure 11 and Figure 12 shown, the upper refrigerating sheet 15 adopts a rectangular sheet structure, and its size is the same as and fits the rectangular surface 14-1 of the water guide layer 14. At the middle positions of the four sides of the upper refrigerating sheet 15, a connecting ear for passing through the first fastening screw is respectively extended outward. The four connecting ears are fitted with the four screw holes on the heat insulation cofferdam 13.

[0050] In the above water evaporation-condensation device, as Figure 6 shown, the refrigeration heat conduction bridge 16 includes a rectangular refrigeration block 16-1. At the middle positions of the four sides of the rectangular refrigeration block 16-1, a refrigeration plate 16-2 is respectively extended outward. The outer ends of the four refrigeration plates 16-2 are fixedly connected to the bottom periphery of the condenser 12 through a resin adhesive. The size of the rectangular refrigeration block 16-1 is the same as and fits the size of the upper refrigerating sheet 15. At the inner ends of the four refrigeration plates 16-2, connecting holes for passing through the first fastening screw are respectively provided. The four connecting holes are fitted with the four connecting ears on the upper refrigerating sheet 15.

[0051] In the above water evaporation-condensation device, the lower refrigerating sheet 17 adopts a rectangular sheet structure, and its size is the same as and fits the rectangular refrigeration block 16-1 of the refrigeration heat conduction bridge 16. At the middle positions of the four sides of the lower refrigerating sheet 17, a connecting ear for passing through the first fastening screw is respectively extended outward. The four connecting ears are fitted with the four connecting holes on the refrigeration heat conduction bridge 16.

[0052] In the above water evaporation-condensation device, as Figure 13 and Figure 14As shown in the figure, the heating heat conduction bridge 18 includes a rectangular heating block 18-1. At the positions of the four corners of the rectangular heating block 18-1, a heating plate 18-2 extends outward respectively. At the outer end of each heating plate 18-2, an n-shaped hanging plate 18-3 is provided. The outer plate of the n-shaped hanging plate 18-3 is embedded in the annular card slot 11 and is connected to the heat conduction copper wire in the double-layer light-transmitting glass cover 1. The inner plate of the n-shaped hanging plate 18-3 is clamped on the inner surface of the side wall of the internal water storage area 6; the size of the rectangular heating block 18-1 is the same as that of the lower refrigerating sheet 17 and they are fitted together. At the middle positions of the four sides of the rectangular heating block 18-1, a connecting ear for passing through the first fastening screw extends outward respectively. The four connecting ears are fitted with the four connecting ears on the lower refrigerating sheet 17.

[0053] In the above water evaporation-condensation device, the four refrigerating plates 16-2 of the refrigerating heat conduction bridge 16 and the four heating plates 18-2 of the heating heat conduction bridge 18 are arranged staggeredly. The included angle between adjacent refrigerating plates 16-2 and heating plates 18-2 is 45°; the outer ends of the four refrigerating plates 16-2 of the refrigerating heat conduction bridge 16 are respectively fixedly connected to the top of the internal water storage area 6 of the water storage base 2 through the second fastening screws. The top plates of the four n-shaped hanging plates 18-3 of the heating heat conduction bridge 18 are respectively fixedly connected to the top of the internal water storage area 6 of the water storage base 2 through the second fastening screws.

[0054] In the above water evaporation-condensation device, the refrigerating heat conduction bridge 16 and the heating heat conduction bridge 18 are made of copper and are both wrapped with white heat-insulating tapes to avoid direct sunlight on the heat conduction bridges.

[0055] In the high-efficiency solar interface water evaporation and condensation device driven by photo-thermal / photovoltaic co-driving described in this embodiment, the upper refrigerating sheet 15 and the lower refrigerating sheet 17 are both semiconductor refrigerating sheets. The upper refrigerating sheet 15 and the lower refrigerating sheet 17 form a semiconductor refrigerating module. The semiconductor refrigerating sheets (upper and lower refrigerating sheets 15, 17) are driven to work by the solar photovoltaic effect. The temperature of each component is regulated by the semiconductor refrigerating sheets, so as to obtain a higher photo-thermal interface water evaporation speed. The increase in the hot surface temperature of the upper refrigerating sheet 15 can heat the photo-thermal thin film in the heat insulation cofferdam 13, further increasing the water evaporation speed. The cold surfaces of the upper and lower refrigerating sheets 15, 17 cool the condenser 12 through the refrigerating heat conduction bridge 16, so as to promote the preferential and rapid condensation of water vapor on the surface of the condenser 12, further increasing the distilled water output. The hot surface of the lower refrigerating sheet 17 heats the double-layer light-transmitting glass cover 1 through the heating heat conduction bridge 18, so as to inhibit the condensation of water vapor on the surface of the double-layer light-transmitting glass cover 1 and avoid the problem of water condensation and light shielding on the surface of the double-layer light-transmitting glass cover 1. At the same time, the outer surface of the condenser 12 is designed as a mirror structure, which can reflect sunlight to the double-layer light-transmitting glass cover 1, further increasing the temperature of the double-layer light-transmitting glass cover 1. The double-layer light-transmitting glass cover 1 is a double-layer heat-insulating structure, which can avoid the influence of the ambient temperature and thus maintain the high-temperature effect of the inner layer of the glass cover.

[0056] The above-described embodiments only represent the optimal implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An efficient solar interface water evaporation and condensation device co-driven by photothermal / photovoltaic, characterized in that: It includes a double-layer light-transmitting glass cover (1), a water storage base (2), and a water evaporation-condensation device; The double-layer light-transmitting glass cover (1) includes an inner cover (3) and an outer cover (4) which are sleeved. A hollow sealed layer (5) is formed between the inner cover (3) and the outer cover (4), and heat-conducting copper wires are arranged in the hollow sealed layer (5); The water storage base (2) includes an internal water storage area (6) for storing raw water and an external water storage area (7) for storing distilled water which are sleeved. The bottom ends of the internal water storage area (6) and the external water storage area (7) are closed, and the top ends are open; A first drain port (8) with a valve is connected to the bottom of the side wall of the internal water storage area (6), and the first drain port (8) extends through the external water storage area (7) and then to the outside of the water storage base (2); A second drain port (9) with a valve is connected to the bottom of the side wall of the external water storage area (7), and an annular card slot (11) is installed at the top of the external water storage area (7); The water evaporation-condensation device includes a condenser (12), a heat insulation cofferdam (13), a water guide layer (14), an upper refrigeration sheet (15), a refrigeration heat conduction bridge (16), a lower refrigeration sheet (17), and a heating heat conduction bridge (18) which are arranged in sequence from top to bottom; Cold-conducting copper wires are arranged in the condenser (12). The bottom surface of the heat insulation cofferdam (13) abuts against the top surface of the water guide layer (14). Multidimensional light-heat water evaporation materials are placed in the heat insulation cofferdam (13). The hot surface of the upper refrigeration sheet (15) faces upward and abuts against the bottom surface of the water guide layer (14). The cold surface of the upper refrigeration sheet (15) faces downward and abuts against the top surface of the refrigeration heat conduction bridge (16). The periphery of the refrigeration heat conduction bridge (16) is fixedly connected to the periphery of the condenser (12). The refrigeration heat conduction bridge (16) is connected to the cold-conducting copper wires in the condenser (12). The heat insulation cofferdam (13), the water guide layer (14), and the upper refrigeration sheet (15) are all placed inside the condenser (12). The cold surface of the lower refrigeration sheet (17) faces upward and abuts against the bottom surface of the refrigeration heat conduction bridge (16). The hot surface of the lower refrigeration sheet (17) faces downward and abuts against the top surface of the heating heat conduction bridge (18). The heat insulation cofferdam (13), the upper refrigeration sheet (15), the refrigeration heat conduction bridge (16), the lower refrigeration sheet (17), and the heating heat conduction bridge (18) are connected and fixed by first fastening screws; The cover opening at the bottom of the double-layer light-transmitting glass cover (1) is hermetically embedded in the annular card slot (11) at the top of the water storage base (2). The refrigeration heat conduction bridge (16) and the heating heat conduction bridge (18) of the water evaporation-condensation device are respectively fixedly connected to the top of the internal water storage area (6) of the water storage base (2) by second fastening screws. The periphery of the heating heat conduction bridge (18) is embedded in the annular card slot (11) and is connected to the heat-conducting copper wires in the double-layer light-transmitting glass cover (1). The bottom periphery of the condenser (12) is directly opposite to the open position at the top of the external water storage area (7).

2. The high-efficiency solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic according to claim 1, wherein: The water storage base (2) is made of plexiglass.

3. An efficient solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic, according to claim 1 or 2, characterized in that: The condenser (12) uses a quartz condenser (12) with a frustum shape. It has a top plate with an opening at the top, an open bottom, and a number of air guide holes (19) evenly distributed on its side walls. The inner surface of its side walls is equipped with cold-conducting copper wires, and the outer surface of its side walls is designed as a mirror surface.

4. The highly efficient solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic according to claim 3, characterized in that: The heat insulation cofferdam (13) adopts a rectangular frame structure, and its interior is used to place multi-dimensional light-heat-water evaporation materials. Screw holes for connecting the first fastening screws are provided at the middle positions of its four frame edges.

5. An efficient solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic, characterized in that: The water guide layer (14) is made of non-woven fabric. It includes a rectangular surface (14-1) in the middle, and a water delivery strip (14-2) is respectively provided at each of the four corners of the rectangular surface (14-1); the rectangular surface (14-1) is sandwiched between the heat insulation cofferdam (13) and the upper refrigeration sheet (15), and the size of the rectangular surface (14-1) is the same as and fits the inner frame opening at the bottom of the heat insulation cofferdam (13). The four water delivery strips (14-2) extend downward into the internal water storage area (6) of the water storage base (2).

6. The high-efficiency solar interfacial water evaporation and condensation device driven by photo-thermal / photovoltaic co-driving according to claim 5, characterized in that: The upper refrigeration sheet (15) adopts a rectangular sheet structure, and its size is the same as and fits the rectangular surface (14-1) of the water guide layer (14); at the middle positions of the four sides of the upper refrigeration sheet (15), a connecting ear for passing through the first fastening screw is respectively extended outward. The four connecting ears fit the four screw holes on the heat insulation cofferdam (13).

7. An efficient solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic, according to claim 6, characterized in that: The refrigeration heat conduction bridge (16) includes a rectangular refrigeration block (16-1). At the middle positions of the four sides of the rectangular refrigeration block (16-1), a refrigeration plate (16-2) is respectively extended outward. The outer ends of the four refrigeration plates (16-2) are fixedly connected to the bottom periphery of the condenser (12) through resin glue; the size of the rectangular refrigeration block (16-1) is the same as and fits the size of the upper refrigeration sheet (15). Connecting holes for passing through the first fastening screws are respectively provided at the inner ends of the four refrigeration plates (16-2), and the four connecting holes fit the four connecting ears on the upper refrigeration sheet (15).

8. An efficient solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic, characterized in that: The lower refrigeration sheet (17) adopts a rectangular sheet structure, and its size is the same as and fits the rectangular refrigeration block (16-1) of the refrigeration heat conduction bridge (16); at the middle positions of the four sides of the lower refrigeration sheet (17), a connecting ear for passing through the first fastening screw is respectively extended outward. The four connecting ears fit the four connecting holes on the refrigeration heat conduction bridge (16).

9. An efficient solar interfacial water evaporation and condensation device co-driven by photothermal / photovoltaic, characterized in that: The heat-generating thermal bridge (18) includes a rectangular heat-generating block (18-1). At the positions of the four corners of the rectangular heat-generating block (18-1), a heat-generating plate (18-2) is respectively extended outward. At the outer end of each heat-generating plate (18-2), an n-shaped hanging plate (18-3) is provided. The outer side plate of the n-shaped hanging plate (18-3) is embedded in the annular card slot (11) and is connected to the heat-conducting copper wire in the double-layer light-transmitting glass cover (1). The inner side plate of the n-shaped hanging plate (18-3) is clamped on the inner surface of the side wall of the internal water storage area (6); the size of the rectangular heat-generating block (18-1) is the same as that of the lower refrigerating sheet (17) and they are fitted. At the middle positions of the four sides of the rectangular heat-generating block (18-1), a connecting ear for passing through the first fastening screw is respectively extended outward. The four connecting ears are fitted with the four connecting ears on the lower refrigerating sheet (17).

10. An efficient solar interfacial water evaporation and condensation device driven by photothermal / photovoltaic co-driving, characterized in that: The multi-dimensional photo-thermal water evaporation material uses a photo-thermal thin film; the rectangular surface (14-1) in the water-conducting layer (14) is in close contact with the top surface of the upper refrigerating sheet (15) through heat-conducting glue; the materials of the refrigerating thermal bridge (16) and the heat-generating thermal bridge (18) are copper and are both wrapped with white heat-insulating tapes; the four refrigerating plates (16-2) of the refrigerating thermal bridge (16) and the four heat-generating plates (18-2) of the heat-generating thermal bridge (18) are arranged staggeredly, and the included angle between the adjacent refrigerating plate (16-2) and the heat-generating plate (18-2) is 45°; the outer ends of the four refrigerating plates (16-2) of the refrigerating thermal bridge (16) are respectively fixedly connected to the top of the internal water storage area (6) of the water storage base (2) through the second fastening screws, and the top plates of the four n-shaped hanging plates (18-3) of the heat-generating thermal bridge (18) are respectively fixedly connected to the top of the internal water storage area (6) of the water storage base (2) through the second fastening screws.

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