Light following type light energy heat collector

Abstract

The invention relates to the technical field of light energy heat collectors, in particular to a light following type light energy heat collector which comprises a rack, a first guide support and a second guide support, a linear guide groove is formed in the first guide bracket, and an arc guide groove is formed in the second guide bracket; an assembling cavity in a sealed state is designed in the inner wall of the rack, a coiled material type high-reflection metal film is installed in the assembling cavity, a switching terminal is installed at the free end of the high-reflection metal film, and the switching terminal and the linear guide groove or the arc guide groove can form a sliding connection relation; a selector is installed on the inner wall of the rack and can control the switching terminal to enter the linear guide groove or the arc guide groove. The high-reflection metal film can perform mirror reflection on light, and the high-reflection metal film can be switched back and forth between a flat plate type reflection surface and a parabolic mirror surface to meet different use scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of solar energy collectors, in particular to a light-chasing type solar energy collector. Background Art

[0002] A tracking solar collector is a device that can track the position of the sun and concentrate sunlight to a point or a small area. In this way, it can effectively improve the efficiency of capturing solar energy for applications such as heating, heat supply or power generation. This collector usually includes one or more reflectors and a collector. The reflectors adjust their angles according to the direction of the sun's movement.

[0003] In the prior art, reflectors are generally divided into flat-plate reflectors and parabolic reflectors. Flat-plate reflectors are suitable for scenarios that require uniform distribution of light, such as the use of photovoltaic panels, while parabolic reflectors are used in scenarios that require concentrated light heating. Currently, the reflectors in the collectors are independent and the reflection mode cannot be adjusted according to demand, making them unsuitable for different scenarios. Summary of the invention

[0004] The present invention provides a light-chasing solar energy collector, in which a highly reflective metal film can be switched back and forth between a flat reflective surface and a parabolic mirror surface to meet different usage scenarios.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: The tracking solar energy collector comprises: A first guide bracket and a second guide bracket on a frame and an inner wall thereof; a linear guide groove is provided on the first guide bracket, and an arc guide groove is provided on the second guide bracket; the inner wall of the frame is designed with a sealed assembly cavity, a coiled high-reflection metal film is installed inside the assembly cavity, a switching terminal is installed at the free end of the high-reflection metal film, and the switching terminal can form a sliding connection relationship with the linear guide groove or the arc guide groove; a selector is installed on the inner wall of the frame, and the selector can control the switching terminal to enter the linear guide groove or the arc guide groove; the high-reflection metal film can perform mirror reflection on light.

[0006] Optionally, the switching terminal includes an I-shaped slider slidably mounted inside the guide groove, both sides of the I-shaped slider are slidably sleeved with limit sleeves, a spring device is installed between the limit sleeve and the I-shaped slider, the spring device makes the two limit sleeves fit tightly with the inner wall of the guide groove, and the free end of the high-reflection metal film is fixedly connected to the outer wall of the I-shaped slider; The linear guide groove and the arc guide groove both have open ends.

[0007] Optionally, the travel ends of the linear guide groove and the arc guide groove are both designed with necking sections, and the inner wall of the necking section is designed to be rough.

[0008] Optionally, a pull rope is installed at the free end of the highly reflective metal film, and in an initial state, the pull rope hangs down inside the frame.

[0009] Optionally, two positioning seats are installed inside the assembly cavity, a slit is provided between the two positioning seats, and the slit allows a highly reflective metal film to pass through, and a clean portion is pasted on the outer walls of the opposite surfaces of the two positioning seats, and the clean portion is made of a flexible material.

[0010] Optionally, the back side of the highly reflective metal film is made of plastic magnetic material, a limit plate is fixedly installed on the inner wall of the frame, the limit plate is arc-shaped, and the curvature of the limit plate is consistent with the curvature of the arc guide groove, the arc-shaped outer wall of the limit plate has a magnetic layer, and the magnetic layer is attracted to the back side of the highly reflective metal film.

[0011] Optionally, a plurality of heat dissipation holes are formed on the limiting plate, and a gap is left between the arc top of the limiting plate and the inner wall of the frame, and the outer wall of the frame is hollowed out.

[0012] Optionally, the reflective surface of the highly reflective metal film is coated with an aluminum coating, and the exterior of the aluminum coating is further coated with a transparent polyurethane coating.

[0013] The following beneficial effects are achieved by the light-chasing solar collector provided by the present invention: The highly reflective metal film can be rolled up and down. When the switching terminal leads the free end of the highly reflective metal film into the linear guide groove, the highly reflective metal film will be pulled to a vertical state, so that the reflective surface of the highly reflective metal film is a flat plate. Similarly, when the switching terminal enters the arc guide groove, the highly reflective metal film will also be restricted by the arc guide groove. At the same time, in addition to the winding ability, the highly reflective metal film itself can also maintain a certain arc angle, so that the highly reflective metal film can be used as a parabolic mirror. Therefore, the highly reflective metal film can switch back and forth between a flat reflective surface and a parabolic mirror to meet different usage scenarios. In addition, the light-chasing solar energy collector of the present invention also has many beneficial technical effects, and the details are further recorded in conjunction with the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 The left view structural diagram of ; Figure 3 For the present invention Figure 2 The schematic diagram of the structure is a cross-section at AA in the middle; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlarged at B in the middle; Figure 5 For the present invention Figure 3 A schematic diagram of the structure enlarged at C in the middle; Figure 6 It is a half-section schematic diagram of the three-dimensional structure of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the selector in the present invention.

[0015] In the figure: 1. frame; 2. first guide bracket; 3. second guide bracket; 4. limit plate; 5. functional turntable; 6. high reflective metal film; 7. positioning seat; 8. clean part; 9. assembly cavity; 11. I-shaped slider; 12. limit sleeve; 13. guide groove; 14. neck section; 15. pull rope. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] See also Figures 1 to 7 , the present invention provides a technical solution: a tracking light energy collector, a frame 1 and a first guide bracket 2 and a second guide bracket 3 on its inner wall; A linear guide groove is provided on the first guide bracket 2, and an arc guide groove is provided on the second guide bracket 3; a sealed assembly cavity 9 is designed on the inner wall of the frame 1, a coiled high-reflection metal film 6 is installed inside the assembly cavity 9, a switching terminal is installed on the free end of the high-reflection metal film 6, and the switching terminal and the linear guide groove or the arc guide groove can form a sliding connection relationship; a selector is installed on the inner wall of the frame 1, and the selector can control the switching terminal to enter the linear guide groove or the arc guide groove; the high-reflection metal film 6 can perform mirror reflection on the light.

[0019] In the prior art, when an emergency situation occurs and a collector needs to be quickly built, a roll-type highly reflective metal film 6 is used to enable it to be quickly built and transported. Secondly, by unwinding the highly reflective metal film 6, a flat mirror or parabolic mirror can be quickly formed to adapt to different scenarios.

[0020] Specifically, in the present invention, the highly reflective metal film 6 can be retracted and unreeled. When the switching terminal leads the free end of the highly reflective metal film 6 into the linear guide groove, the highly reflective metal film 6 will be pulled to a vertical state, so that the reflective surface of the highly reflective metal film 6 is a flat plate. At this time, the highly reflective metal film 6 can be put into the tower system as a reflective unit to heat the heat transfer fluid molten salt of the heat collecting tower. The highly reflective metal film 6 serves as a heliostat. Similarly, when the switching terminal enters the arc guide groove, the highly reflective metal film 6 will also be restricted by the arc guide groove. At the same time, the highly reflective metal film In addition to its winding capability, 6 can also maintain a certain arc angle, so that the highly reflective metal film 6 can be used as a parabolic mirror for concentrated light. For example, in a parabolic trough CSP system, the sun's energy is concentrated on the collector tube through the curved parabolic trough mirror, and then the heat energy is used in the thermal system to generate power in a traditional steam turbine. The trough solar collector field includes a plurality of parallel parabolic trough mirrors, which are arranged in a row so that these single-axis trough mirrors can track the sun from east to west during the day to ensure that the sun is continuously focused on the receiving tube.

[0021] Therefore, the highly reflective metal film 6 can switch back and forth between a flat reflective surface and a parabolic mirror surface to meet different usage scenarios.

[0022] In this embodiment, two switching terminals and two selectors can be designed, such as Figure 7 , the symmetrical design can make the high-reflective metal film 6 more stable and maintain a better flat plate or arc groove posture. The present invention does not show the heat collecting tube and the light chasing platform. The heat collecting tube is used for absorbing and conducting heat, and the light chasing platform is used to track the sun to obtain a better illumination angle.

[0023] In a preferred embodiment, the selector includes a function dial 5 rotatably mounted on the inner wall of the frame 1, and a guide groove 13 is provided on the function dial 5. The guide groove 13 is arranged on the radial line of the function dial 5. When the function dial 5 rotates, one end of the guide groove 13 can dock with the linear guide groove or the arc guide groove. In the initial state, the switching terminal is located on the inner wall of the guide groove 13, and a sliding connection relationship is formed between the switching terminal and the guide groove 13. The coiled high-reflection metal film 6 is located above the guide groove 13, and the free end of the high-reflection metal film 6 enters the interior of the guide groove 13. Please refer to Figures 3 to 7In this embodiment, the function dial 5 exists as an intermediary structure. In the initial state, the free end of the highly reflective metal film 6 is also located inside the guide groove 13. At this moment, when the function dial 5 rotates, the guide groove 13 can be connected with any one of the linear guide groove and the arc guide groove. After the connection is completed, the switching terminal can be driven to move from the guide groove 13 to the linear guide groove or the arc guide groove. At this time, due to the sliding connection relationship between the guide groove 13 and the linear guide groove or the arc guide groove, the switching terminal can drive the free end of the highly reflective metal film 6 to continue to move, so that the reflecting surface of the highly reflective metal film 6 can form a flat mirror or a parabolic mirror.

[0024] Based on the selector embodiment, as a preferred embodiment, the switching terminal includes an I-shaped slider 11 slidably installed inside the guide groove 13, and both sides of the I-shaped slider 11 are slidably sleeved with limit sleeves 12. A spring device is installed between the limit sleeve 12 and the I-shaped slider 11. The spring device makes the two limit sleeves 12 fit tightly with the inner wall of the guide groove 13, and the free end of the high-reflection metal film 6 is fixedly connected to the outer wall of the I-shaped slider 11; both the linear guide groove and the arc guide groove have an open end. Please refer to Figure 4 In this embodiment, through the cooperation of the limit sleeve 12, the I-shaped slider 11 and the guide groove 13, the I-shaped slider 11 can stay stably in the guide groove 13. Secondly, when the limit sleeve 12 can enter the linear guide groove or the arc guide groove, the I-shaped slider 11 can also remain stable to prevent the high-reflective metal film 6 from deviating under the influence of external factors such as wind energy.

[0025] Based on the switching terminal embodiment, as a preferred embodiment, the travel ends of the linear guide groove and the arc guide groove are both designed with a necking section 14, and the inner wall of the necking section 14 is rough. Please refer to Figure 5 In this embodiment, when the limit sleeves 12 and the I-shaped slider 11 enter the necking section 14, the two limit sleeves 12 will move closer to the I-shaped slider 11 to compress the spring device, and then the outer walls of the two limit sleeves 12 will fit with the inner walls of the linear guide groove or the arc guide groove, and with the pressure of the spring device, the free end of the high-reflective metal film 6 can be kept locked.

[0026] Based on the switching terminal embodiment, as a preferred embodiment, a pull rope 15 is also installed at the free end of the high-reflection metal film 6. In the initial state, the pull rope 15 hangs inside the frame 1. When the free end or the switching terminal is located inside the guide groove 13, the high-reflection metal film 6 and the switching terminal can be displaced by pulling the pull rope 15 to complete the switching.

[0027] Based on the selector embodiment, as a preferred embodiment, two positioning seats 7 are installed inside the assembly cavity 9, and there is a slit between the two positioning seats 7, which allows the high-reflection metal film 6 to pass through. Clean parts 8 are pasted on the outer walls of the opposite sides of the two positioning seats 7. The clean parts 8 are made of flexible materials. Figure 3 And its detailed enlarged view, in the present embodiment, since the highly reflective metal film 6 will be exposed to the air, during the long-term use, the reflective surface of the highly reflective metal film 6 will be contaminated, thereby affecting the reflective efficiency of the reflective surface. Therefore, it is necessary to protect the reflective surface of the highly reflective metal film 6. By designing the cooperation between the slit and the clean part 8, the highly reflective metal film 6 can be flexibly cleaned by the clean part 8 during the winding process, that is, the mirror reflection performance of the highly reflective metal film 6 is protected, and pollutants such as dust can also be processed, so that the high-reflective metal film 6 can always maintain normal reflection performance.

[0028] Among them, the more preferred embodiment is that the back side of the highly reflective metal film 6 is made of plastic magnetic material, and a limit plate 4 is fixedly installed on the inner wall of the frame 1. The limit plate 4 is of arc design, and the curvature of the limit plate 4 is consistent with the curvature of the arc guide groove. The arc outer wall of the limit plate 4 has a magnetic layer, and the magnetic layer is attracted to the back side of the highly reflective metal film 6. In this embodiment, the back side of the highly reflective metal film 6 is also called a base layer, which is used to support the reflective surface of the highly reflective metal film 6, and is usually made of plastic material. We can add magnetic powder to the components of the base layer to give it magnetism. This can make the back side of the highly reflective metal film 6 magnetic and enable it to attract the magnetic layer. After being guided, the highly reflective metal film 6 is in a parabolic mirror surface, and the arc guide groove is consistent with the curvature of the limit plate 4, that is, the limit plate 4 can be better fitted to the high-reflective metal film 6.

[0029] Furthermore, a plurality of heat dissipation holes are provided on the limiting plate 4, and a gap is left between the arc top of the limiting plate 4 and the inner wall of the frame 1, and the outer wall of the frame 1 is hollowed out, see Figure 1 and Figure 3 In the present embodiment, when the reflective surface of the highly reflective metal film 6 is on a flat mirror surface, there is a distance between the back side of the highly reflective metal film 6 and the limiting plate 4, and the back side of the highly reflective metal film 6 is exposed to the air, thereby improving the heat dissipation capacity of the highly reflective metal film 6. When the highly reflective metal film 6 is on a parabolic mirror surface, the back side of the highly reflective metal film 6 will be attached to the arc-shaped outer wall of the limiting plate 4. At this time, the limiting plate 4 can shape the highly reflective metal film 6, making the mirror surface of the highly reflective metal film 6 more stable and appropriate, but reducing the heat dissipation capacity of the highly reflective metal film 6. The combination of the heat dissipation holes and the gaps can improve the heat dissipation capacity of the highly reflective metal film 6 in the parabolic mirror state, thereby improving its thermal management performance.

[0030] Furthermore, as a preferred embodiment, the reflective surface of the highly reflective metal film 6 is coated with an aluminum coating, and the outside of the aluminum coating is also coated with a transparent polyurethane coating. In this embodiment, the aluminum coating is used due to its lighter material, which is convenient for transportation and assembly. At the same time, the reflectivity of the aluminum coating can reach more than 90%, which can effectively reflect visible light and infrared light. However, it may oxidize when exposed to air. Therefore, a layer of transparent polyurethane coating is coated on the outside of the aluminum coating, which can provide protection for the aluminum coating without affecting its winding ability and light transmission, thereby maintaining the high reflective performance of the aluminum coating.

[0031] By utilizing the above structures, the highly reflective metal film 6 can switch back and forth between a flat reflective surface and a parabolic mirror surface to meet different usage scenarios.

[0032] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0033] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integrated molding using a casting process) (except when it is obviously impossible to use an integrated molding process).

[0034] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the present invention include states or shapes that are approximate, similar, or close to them.

[0035] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Chasing light solar collector, characterized by: include: The frame (1) and a first guide bracket (2) and a second guide bracket (3) on the inner wall thereof; The first guide bracket (2) is provided with a linear guide groove, and the second guide bracket (3) is provided with an arc guide groove; The inner wall of the frame (1) is designed with a sealed assembly cavity (9), a coiled high-reflection metal film (6) is installed inside the assembly cavity (9), a switching terminal is installed at the free end of the high-reflection metal film (6), and the switching terminal can form a sliding connection relationship with the linear guide groove or the arc guide groove; A selector is installed on the inner wall of the frame (1), and the selector can control the switching terminal to enter the linear guide groove or the arc guide groove; The highly reflective metal film (6) is capable of specularly reflecting light.

2. The tracking light energy collector according to claim 1, characterized in that: The switching terminal comprises an I-shaped slider (11) slidably mounted inside a guide groove (13); both sides of the I-shaped slider (11) are slidably sleeved with limit sleeves (12); a spring device is installed between the limit sleeves (12) and the I-shaped slider (11); the spring device enables the two limit sleeves (12) to fit tightly against the inner wall of the guide groove (13); and the free end of the high-reflection metal film (6) is fixedly connected to the outer wall of the I-shaped slider (11); The linear guide groove and the arc guide groove both have open ends.

3. The tracking light energy collector according to claim 2, characterized in that: The travel ends of the linear guide groove and the arc guide groove are both designed with a necking section (14), and the inner wall of the necking section (14) is of a rough design.

4. The tracking light energy collector according to claim 2, characterized in that: A pull rope (15) is also installed at the free end of the high-reflection metal film (6); in an initial state, the pull rope (15) hangs down inside the frame (1).

5. The tracking light energy collector according to claim 2, characterized in that: Two positioning seats (7) are installed inside the assembly cavity (9), and a slit is provided between the two positioning seats (7), wherein the slit allows the high-reflective metal film (6) to pass through, and a clean portion (8) is adhered to the outer walls of the opposite surfaces of the two positioning seats (7), and the clean portion (8) is made of a flexible material.

6. The tracking light energy collector according to claim 1, characterized in that: The back side of the highly reflective metal film (6) is made of a plastic magnetic material. A limit plate (4) is fixedly mounted on the inner wall of the frame (1). The limit plate (4) is designed to be arc-shaped, and the curvature of the limit plate (4) is consistent with the curvature of the arc guide groove. The arc-surface outer wall of the limit plate (4) has a magnetic layer, and the magnetic layer attracts the back side of the highly reflective metal film (6).

7. The tracking light energy collector according to claim 6, characterized in that: The limiting plate (4) is provided with a plurality of heat dissipation holes, and a gap is left between the arc top of the limiting plate (4) and the inner wall of the frame (1), and the outer wall of the frame (1) is hollowed out.

8. The tracking light energy collector according to any one of claims 1 to 7, characterized in that: The reflective surface of the high-reflective metal film (6) is coated with an aluminum coating, and the exterior of the aluminum coating is also coated with a transparent polyurethane coating.

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