Honeycomb-like structure condenser and portable tracking-free self-condensation seawater desalination device

By designing a honeycomb-like concentrator, the problems of traditional concentrators occupying a large area and low energy utilization rate are solved, and efficient solar energy concentration and all-weather light concentration effect are achieved, which eliminates light-chasing devices and simplifies the Transport and storage of equipment.

CN222498752UActive Publication Date: 2025-02-18DONGGUAN UNIV OF TECH
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Patent Information

Application Number
CN202421158158.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-02-18
Estimated Expiration
2034-05-27

AI Technical Summary

Technical Problem

Traditional composite parabolic concentrators cover a large area and are not easy to transport and preserve. Some of the incident sunlight cannot enter the concentrator for light concentration, resulting in a low energy utilization rate of solar energy. It is necessary to be equipped with a light-chasing device to achieve full Sky-gathering effect.

Method used

A honeycomb-like structure condenser is designed, including a connecting plate and several CPC-like condenser cups. Each CPC-like condenser cup is a hexagonal hollow structure, which reduces the number of condensers between the condensers through specific angles and array arrangements. The spaces enhance the concentration effect and achieve all-weather concentration.

Benefits of technology

Through the design of honeycomb-like concentrators, the gaps between the concentrators are reduced, the utilization rate of solar energy is improved, and the concentration effect is achieved throughout the weather, which eliminates expensive and complex tracking concentrators, and simplifies the equipment disassembly and transport.

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Abstract

The utility model discloses a honeycomb-like structure condenser and portable trackless self-condensation seawater desalination plant, the honeycomb-like structure condenser comprises a connecting plate and a plurality of CPC-like condensation cups, one CPC-like condensation cup is vertically arranged, the rest CPC-like condensation cups are respectively and obliquely arranged and surround the periphery of the CPC-like condensation cup located at the center, and the CPC-like condensation cups are connected with the connecting plate. Therefore, the whole CPC-like condensation cup is in an outward diverging shape from bottom to top, the cross section of each CPC-like condensation cup is hexagonal, and honeycomb-like inlets are formed in the upper ends of all the CPC-like condensation cups. The CPC-like condenser is designed to be hexagonal, light within a certain incident angle range is condensed to the bottom of the condenser, long-time condensation work of the condenser at a fixed position is further achieved, the condenser is distributed according to a special array and radian, all-weather condensation at different time periods can be achieved, and the condensation efficiency is improved. And finally, an expensive and complex tracking light-gathering device can be omitted.
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Description

Technical Field

[0001] The utility model relates to the technical field of seawater desalination, and more specifically to a honeycomb-like structure concentrator and a portable non-tracking self-concentrating seawater desalination device. Background Art

[0002] The solar thermal-driven desalination system converts solar energy into thermal energy, then heats seawater to evaporate it, separates salt and water, and then obtains the required fresh water through the condensation process of water vapor. The concentrator currently used to achieve the above-mentioned light-heat-fresh water technology is a traditional compound parabolic concentrator, which includes multiple concentrating cups.

[0003] Although the traditional compound parabolic concentrator has a simple structure, it has the following difficulties: the shape is composed of a parabola, and multiple CPC concentrators occupy a large area, which is not easy to transport and store. In addition, there are large gaps between CPCs, and part of the incident sunlight fails to enter the concentrator for concentration. The energy utilization rate of solar energy is low, and a chasing device is required to achieve a full-day focusing effect, which consumes additional electricity.

[0004] Therefore, it is necessary to design a CPC-like concentrator that can achieve the focusing effect while reducing the waste of solar radiation energy, reduce the placement interval between concentrators, improve the efficiency of solar energy utilization, and have low construction costs. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and to provide a honeycomb-like structure concentrator and a portable non-tracking self-concentrating seawater desalination device.

[0006] To achieve the above-mentioned purpose, the first aspect of the utility model provides a honeycomb structure concentrator, including a connecting plate and a plurality of CPC-like concentrating cups, each CPC-like concentrating cup is a hollow structure with openings at both ends, one of the CPC-like concentrating cups is vertically inserted into a first through hole provided in the center of the connecting plate, and the remaining CPC-like concentrating cups are respectively inserted obliquely into their respective corresponding second through holes on the connecting plate and surround the CPC-like concentrating cup in the center at a certain angle, so that the overall CPC-like concentrating cup radiates outward from bottom to top, and the cross-sectional shape of each CPC-like concentrating cup is a hexagon, so that the upper ends of all CPC-like concentrating cups are combined to form a honeycomb-like inlet structure.

[0007] Preferably, the CPC-like concentrating cup comprises six concentrating blades, all of which are connected in sequence to form a hollow structure with upper and lower ends open, and all of the concentrating blades of the CPC-like concentrating cup are configured as curved blades.

[0008] Preferably, two adjacent focusing blades in each CPC-like focusing cup are detachably connected, and can be deformed and restored to a planar shape after the focusing blades are removed.

[0009] Preferably, the peripheral CPC-like focusing cups are symmetrically distributed left-right and front-back with the central CPC-like focusing cup as the axis, the angle between the axis of the CPC-like focusing cups on the front and rear sides and the axis of the central CPC-like focusing cup is 12°, and the angle between the CPC-like focusing cups on both sides and the axis of the central CPC-like focusing cup is 24°.

[0010] Preferably, seven CPC-like focusing cups are provided.

[0011] Preferably, the cross-sectional shape of the connecting plate is configured as an upwardly arched arc.

[0012] The second aspect of the utility model provides a portable non-tracking self-focusing seawater desalination device, comprising an adjustable swing bracket, an evaporation cover, an evaporation sponge, a seawater container, a condensation shell, a fresh water container, a support shell and the honeycomb structure concentrator described in the above technical solution, wherein the seawater container is installed inside the condensation shell, a condensation chamber for steam condensation is provided between the outer side wall of the seawater container and the inner side wall of the condensation shell, a seawater containing tank for containing seawater is provided on the top of the seawater container, the evaporation cover is installed on the top of the condensation shell and closes the seawater containing tank, an evaporation chamber is provided inside the evaporation cover, a lower outlet of the evaporation chamber is connected to the condensation chamber of the condensation shell, a light-transmitting mirror is provided on the top of the evaporation cover, the evaporation sponge is placed in the seawater containing tank and the upper end of the evaporation sponge passes through the bottom of the evaporation cover upwards and then extends into the evaporation chamber and is located below the light-transmitting mirror, a fresh water outflow outlet is provided on the bottom plate of the condensation chamber, the fresh water container is located below the fresh water outflow outlet, and the honeycomb structure concentrator is swingably mounted on the condensation shell through the adjustable swing bracket and is located above the evaporation cover.

[0013] Preferably, the evaporation upper cover comprises an upper cover body and a lower cover plate, the lower cover plate is located below the upper cover body, the evaporation chamber is formed between the lower cover plate, the upper cover body and the light-transmitting mirror, the diameter of the lower cover plate is smaller than the diameter of the bottom hole of the upper cover body, so that a lower outlet of the evaporation chamber is formed between the edge of the lower cover plate and the bottom inner edge of the upper cover body, the lower cover plate is provided with a lower cover plate through-hole for the upper end of the evaporation sponge to pass through, and the lower cover plate is arranged above the seawater containing tank.

[0014] Preferably, the light-transmitting mirror is arched upward from the edge toward the center, the top of the upper cover body of the evaporation upper cover is tilted upward from the edge toward the center, and the top of the upper cover body is smoothly connected with the edge of the light-transmitting mirror, so that the top of the upper cover body and the light-transmitting mirror are combined to form a hill shape that bulges upward, and the lower cover plate of the evaporation upper cover bulges upward from the edge toward the center.

[0015] Preferably, the bottom plate of the condensation chamber is arranged obliquely, and the fresh water outflow outlet is opened at the lowest point of the bottom plate of the condensation chamber.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The honeycomb-like structure concentrator of the utility model has a simple and novel structure and a reasonable design. The traditional concentrator is improved to obtain a CPC-like concentrator. The cross-sectional shape of the CPC concentrator is set to a hexagon, which reduces the gap between the compound parabolic concentrators and enhances the focusing effect. Multiple concentrators are arranged according to a certain arc to achieve a full-day focusing effect, and the light within a certain range of incident angles is focused to the bottom of the concentrator, thereby realizing a single concentrator in a fixed position for a long time. The concentrator can achieve focusing at different times of the day based on a special array and arc distribution, and ultimately eliminate the expensive and complex tracking and focusing device.

[0018] 2. The focusing blades of the honeycomb-like structure concentrator of the utility model can be disassembled and assembled at any time, which further simplifies the equipment and facilitates transportation and storage.

[0019] 3. The portable non-tracking self-focusing seawater desalination device of the utility model has an evaporation chamber in the evaporation cover, and the evaporation chamber is provided with an evaporation sponge. The light focused by the honeycomb structure concentrator array is gathered on the evaporation sponge. The water vapor evaporated from the evaporation sponge overflows from the lower outlet of the evaporation chamber, is condensed into fresh water by the condensation shell, and is collected. At the same time, since it does not require external electric energy to drive, it has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram provided by the first embodiment of the utility model;

[0021] Figure 2 It is an exploded view provided by the first embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional view of a CPC-like focusing cup provided in the first embodiment of the utility model;

[0023] Figure 4 This is a disassembly diagram of the CPC-like focusing cup provided in the first embodiment of the utility model (the focusing blades are restored to a flat surface);

[0024] Figure 5 It is a structural schematic diagram provided by the second embodiment of the present utility model;

[0025] Figure 6 This is an exploded schematic diagram provided by Embodiment 2 of the present utility model;

[0026] Figure 7 It is a half-section diagram provided by the second embodiment of the present utility model;

[0027] Figure 8 This is a bottom schematic diagram of the evaporation upper cover provided in the second embodiment of the present utility model;

[0028] Fig. 9 It is a half-section diagram provided by the second embodiment of the present utility model;

[0029] Fig.10 It is a schematic diagram of the structure of the condensation housing provided in the second embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 1. CPC-like concentrator, 101. CPC-like concentrating device, 102. Curved blades, 2. Adjustable swing bracket, 3. Steam microchannel, 4. Evaporation sponge, 5. Seawater container, 6. Condensation shell, 7. Support shell, 8. Fresh water container. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1

[0034] Please refer to Figures 1 to 4 The first embodiment of the utility model provides a honeycomb structure concentrator, including a connecting plate 1 and seven CPC-like concentrating cups 2. The structure and working principle of each component will be described below.

[0035] Preferably, the CPC-like concentrator cup 2 may include six concentrator blades 21, all of which are connected in sequence to form a hollow structure with upper and lower ends open, and all of the concentrator blades 21 of the CPC-like concentrator cup 2 are configured as curved blades, and the upper inlet of all CPC-like concentrator cups is larger than the lower outlet. The curved surface design of the concentrator blade is optimized from the original CPC parabola equation, and a curved blade is formed by extending the curve equation.

[0036] In order to better store, transport and preserve the focusing cup, the two adjacent focusing blades 21 in each CPC-like focusing cup 2 are detachably connected (such as by a detachable connection through a snap buckle). After the focusing blades 21 are removed, they can be deformed and restored to a flat shape. Multiple curved blades are stored together to enhance the portability of the device.

[0037] One of the CPC-like concentrator cups 2 is vertically inserted into the first through hole 11 provided in the center of the connecting plate 1, and the remaining six CPC-like concentrator cups 2 are respectively obliquely inserted into the corresponding second through holes 12 on the connecting plate 1 and surround the CPC-like concentrator cup 2 located in the center, so that the overall CPC-like concentrator cup 2 is outwardly divergent from bottom to top, and the cross-sectional shape of each CPC-like concentrator cup 2 is a hexagon, so that the upper end of all CPC-like concentrator cups 2 is combined to form a honeycomb-like entrance structure. Although the light path of the incident sunlight changes in real time, there are always one or more CPC-like concentrators facing the sunlight that can concentrate normally, and finally achieve all-weather concentrating.

[0038] In this embodiment, the connecting plate 1 is arched upward to adapt to the installation of a CPC-like focusing cup.

[0039] Furthermore, with the central CPC-like focusing cup 2 as the axis, the peripheral CPC-like focusing cups 2 are symmetrically distributed left to right and front to back, and the angle between the axis of the CPC-like focusing cups 2 on the front and back sides and the axis of the CPC-like focusing cup 2 in the center is about 12°, and the angle between the axis of the CPC-like focusing cups 2 on the left and right sides and the axis of the CPC-like focusing cup 2 in the center is 24°. Of course, in other embodiments, the angle can also be changed according to user needs, which is not limited to this embodiment.

[0040] In addition, in other embodiments, the number of CPC-like focusing cups may also be changed according to user needs and is not limited to this embodiment.

[0041] Embodiment 2

[0042] Please refer to Figures 5 to 10 Embodiment 2 of the present utility model provides a portable non-tracking self-focusing seawater desalination device, including an adjustable swing bracket 3, an evaporation cover 4, an evaporation sponge 5, a seawater container 6, a condensation shell 7, a fresh water container 8, a support shell 10 and the honeycomb structure concentrator of the above-mentioned embodiment 1, which will be described in detail below in combination with the specific structure.

[0043] The condensation shell 7 is installed on the supporting shell 10, and the seawater container 6 is installed inside the condensation shell 7. A condensation chamber 9 for steam condensation is provided between the outer wall of the seawater container 6 and the inner wall of the condensation shell 7. A seawater containing tank 61 for holding seawater is provided on the top of the seawater container 6. A fresh water outflow outlet 91 is provided on the bottom plate 92 of the condensation chamber 9. The fresh water container 8 is detachably installed on the supporting shell 10 and is located below the fresh water outflow outlet 91.

[0044] Preferably, in order to allow the condensed fresh water to flow smoothly into the fresh water container, the bottom plate 92 of the condensation chamber 9 is arranged obliquely, and the fresh water outlet 91 is opened at the lowest point of the bottom plate 92 of the condensation chamber 9. This design allows the condensed fresh water to quickly flow into the fresh water container under the action of gravity.

[0045] The evaporation upper cover 4 is installed on the top of the condensation housing 7 .

[0046] In this embodiment, the evaporation upper cover 4 may include an upper cover body 43 and a lower cover plate 44, the lower cover plate 44 is located below the upper cover body 43, a light-transmitting mirror 42 is provided at the top center of the upper cover body 43, an evaporation chamber 41 is formed between the lower cover plate 44, the upper cover body 43 and the light-transmitting mirror 42, the diameter of the lower cover plate 44 is smaller than the diameter of the bottom hole of the upper cover body 43, so that a lower outlet of the evaporation chamber 41 is formed between the edge of the lower cover plate 44 and the bottom inner edge of the upper cover body 43, the lower outlet of the evaporation chamber 41 is connected to the condensation chamber 9 of the condensation shell 7, a lower cover plate through-hole 441 is provided on the lower cover plate 44 for the upper end of the evaporation sponge 5 to pass through, the lower cover plate 44 is covered above the seawater containing groove 61, the evaporation sponge 5 is placed in the seawater containing groove 61 and the upper end of the evaporation sponge 5 passes upward through the lower cover plate through-hole 441 of the lower cover plate 44 and then extends into the evaporation chamber 41 and is located below the light-transmitting mirror 42.

[0047] In this embodiment, the light-transmitting mirror 42 can be set as glass or lens. Of course, in other embodiments, it can also be set as other types of light-transmitting devices as long as it can transmit sunlight, which is not limited to this embodiment.

[0048] During specific implementation, the light-transmitting mirror 42 is arched upward from the edge toward the center, and the top of the upper cover body 43 of the evaporating upper cover 4 is tilted upward from the edge toward the center, and the top of the upper cover body 43 is smoothly connected with the edge of the light-transmitting mirror 42, so that the top of the upper cover body 43 and the light-transmitting mirror 42 are combined to form a hill-like shape that bulges upward. This design can make the top surface of the evaporation chamber hill-shaped. When part of the water vapor adheres to the top surface of the evaporation chamber to form water droplets, the arc-shaped curve of the chamber top surface can guide the water droplets to move to the lower outlet of the evaporation chamber under the action of gravity, so that the water droplets can fall into the condensation chamber more accurately and quickly. Similarly, the lower cover plate 44 of the evaporating upper cover 4 bulges upward from the edge toward the center, and the raised arc design can quickly guide the water droplets dripping on the lower cover plate to move to the lower outlet of the evaporation chamber, so that the water droplets can fall into the condensation chamber more accurately and quickly.

[0049] The honeycomb-like structure concentrator is swingably mounted on the condensation housing 7 through an adjustable swing bracket 3 and is located above the evaporation upper cover 4.

[0050] In this embodiment, the adjustable swing bracket 3 can be set as two swing arms, the upper ends of the two swing arms are respectively connected to the two sides of the connecting plate of the honeycomb structure concentrator, and the lower ends of the two swing arms are respectively rotatably connected to the wall of the condensation shell (for example, the rotatable connection is achieved by screws). When the angle of the concentrator needs to be adjusted, the user can push the swing arm to swing to adjust the angle of the concentrator facing the sun.

[0051] During operation, seawater is placed in a seawater storage tank, the evaporation sponge absorbs seawater, sunlight is focused on the light-transmitting mirror through a concentrator, sunlight passes through the light-transmitting mirror and is focused on the upper end of the evaporation sponge, and then water vapor generated by the evaporation of seawater evaporates into the evaporation chamber, part of the water vapor condenses into water droplets attached to the top of the evaporation chamber, and then the remaining water vapor and condensed fresh water droplets pass through the lower outlet of the evaporation chamber into the condensation chamber of the condensation shell, and then the water vapor meets the condensation shell and condenses into fresh water droplets, and then the fresh water droplets are collected into the fresh water container through the fresh water outflow outlet.

[0052] In summary, the utility model has the following advantages:

[0053] 1. The honeycomb-like structure concentrator of the utility model has a simple and novel structure and a reasonable design. The traditional concentrator is improved to obtain a CPC-like concentrator. The cross-sectional shape of the CPC concentrator is set to a hexagon, which reduces the gap between the compound parabolic concentrators and enhances the focusing effect. Multiple concentrators are arranged according to a certain arc to achieve a full-day focusing effect, and the light within a certain range of incident angles is focused to the bottom of the concentrator, thereby realizing a single concentrator in a fixed position for a long time. The concentrator can achieve focusing at different times of the day based on a special array and arc distribution, and ultimately eliminate the expensive and complex tracking and focusing device.

[0054] 2. The focusing blades of the honeycomb-like structure concentrator of the utility model can be disassembled and assembled at any time, which further simplifies the equipment and facilitates transportation and storage.

[0055] 3. The portable non-tracking self-focusing seawater desalination device of the utility model has an evaporation chamber in the evaporation cover, and the evaporation chamber is provided with an evaporation sponge. The light focused by the honeycomb structure concentrator array is gathered on the evaporation sponge. The water vapor evaporated from the evaporation sponge overflows from the lower outlet of the evaporation chamber, is condensed into fresh water by the condensation shell, and is collected. At the same time, since it does not require external electric energy to drive, it has a wider range of applications.

[0056] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A honeycomb-like structure concentrator, characterized in that: The invention comprises a connecting plate (1) and a plurality of CPC-like focusing cups (2), each CPC-like focusing cup (2) being a hollow structure with openings at both ends, one CPC-like focusing cup (2) being vertically inserted into a first through hole (11) provided at the center of the connecting plate (1), and the remaining CPC-like focusing cups (2) being obliquely inserted into corresponding second through holes (12) on the connecting plate (1) and surrounding the CPC-like focusing cup (2) located at the center, so that the overall CPC-like focusing cup (2) is outwardly divergent from bottom to top, and the cross-sectional shape of each CPC-like focusing cup (2) is a hexagon, so that the upper ends of all CPC-like focusing cups (2) are combined to form a honeycomb-like inlet structure.

2. The honeycomb-like structure concentrator according to claim 1, characterized in that: The CPC-like concentrator cup (2) comprises six concentrator blades (21), and all the concentrator blades (21) are connected in sequence to form a hollow structure with upper and lower ends open. All the concentrator blades (21) of the CPC-like concentrator cup (2) are configured as curved blades.

3. The honeycomb-like structure concentrator according to claim 1, characterized in that: Two adjacent focusing blades (21) in each CPC-like focusing cup (2) are detachably connected, and can be deformed and restored to a flat shape after the focusing blades (21) are removed.

4. The honeycomb-like structure concentrator according to claim 1, characterized in that: The peripheral CPC-like focusing cups (2) are symmetrically distributed left-right and front-back with the central CPC-like focusing cup (2) as the axis, the angle between the axis of the CPC-like focusing cups (2) on the front and back sides and the axis of the central CPC-like focusing cup (2) is 12°, and the angle between the axis of the CPC-like focusing cups (2) on both sides and the axis of the central CPC-like focusing cup (2) is 24°.

5. The honeycomb-like structure concentrator according to claim 1, characterized in that: The CPC-like focusing cups (2) are provided in seven numbers.

6. The honeycomb-like structure concentrator according to claim 1, characterized in that: The connecting plate (1) is arched upward.

7. Portable non-tracking self-concentrating seawater desalination device, characterized by: The invention comprises an adjustable swing bracket (3), an evaporation cover (4), an evaporation sponge (5), a seawater container (6), a condensation shell (7), a fresh water container (8) and a honeycomb structure concentrator according to any one of claims 1 to 6, wherein the seawater container (6) is installed inside the condensation shell (7), a condensation chamber (9) for steam condensation is provided between the outer wall of the seawater container (6) and the inner wall of the condensation shell (7), a seawater containing tank (61) for containing seawater is provided on the top of the seawater container (6), the evaporation cover (4) is installed on the top of the condensation shell (7) and the seawater containing tank (61) is closed, and an evaporation chamber (41) is provided inside the evaporation cover (4). The lower outlet of the evaporation chamber (41) is connected to the condensation chamber (9) of the condensation shell (7); a light-transmitting mirror (42) is provided on the top of the evaporation cover (4); the evaporation sponge (5) is placed in the seawater containing tank (61); and the upper end of the evaporation sponge (5) passes upward through the bottom of the evaporation cover (4) and then extends into the evaporation chamber (41) and is located below the light-transmitting mirror (42); a fresh water outlet (91) is provided on the bottom plate (92) of the condensation chamber (9); the fresh water container (8) is located below the fresh water outlet (91); and the honeycomb structure concentrator is swingably mounted on the condensation shell (7) through an adjustable swing bracket (3) and is located above the evaporation cover (4).

8. The portable non-tracking self-concentrating seawater desalination device according to claim 7 is characterized in that: The evaporation upper cover (4) comprises an upper cover body (43) and a lower cover plate (44); the lower cover plate (44) is located below the upper cover body (43); the evaporation chamber (41) is formed between the lower cover plate (44), the upper cover body (43) and the light-transmitting mirror (42); the diameter of the lower cover plate (44) is smaller than the diameter of the bottom hole of the upper cover body (43), so that a lower outlet of the evaporation chamber (41) is formed between the edge of the lower cover plate (44) and the inner edge of the bottom of the upper cover body (43); the lower cover plate (44) is provided with a lower cover plate through hole (441) for the upper end of the evaporation sponge (5) to pass through; and the lower cover plate (44) is arranged above the seawater containing tank (61).

9. The portable non-tracking self-concentrating seawater desalination device according to claim 7, characterized in that: The light-transmitting mirror (42) is arched upward from the edge toward the center, the top of the upper cover body (43) of the evaporation upper cover (4) is tilted upward from the edge toward the center, and the top of the upper cover body (43) is smoothly connected with the edge of the light-transmitting mirror (42), so that the top of the upper cover body (43) and the light-transmitting mirror (42) are combined to form a hill shape that bulges upward, and the lower cover plate (44) of the evaporation upper cover (4) is raised upward from the edge toward the center.

10. The portable non-tracking self-concentrating seawater desalination device according to claim 7, characterized in that: The bottom plate (92) of the condensation chamber (9) is arranged obliquely, and the fresh water outlet (91) is opened at the lowest point of the bottom plate (92) of the condensation chamber (9).