An unpowered flat plate solar collector

Abstract

The utility model discloses a kind of unpowered flat plate solar energy collectors, it includes base, base top both sides are equipped with support plate, two support plate side walls are rotatably connected with water delivery pipe, water delivery pipe one end is equipped with heat exchange box, heat exchange box bottom is equipped with mounting frame, the bottom of the inner chamber of mounting frame is equipped with multiple superconducting pipes, this kind of unpowered flat plate solar energy collector, by foam copper, superconducting pipe condensing section is heated evenly, heat exchange box inside water is heated stably, improve capillary zone and capillary block, after superconducting liquid is absorbed, contact superconducting pipe shell with high-efficiency absorption solar energy heating evaporation, by flow guide cover, vapor-liquid flow channel is separated to realize efficient shunt circulation, effectively improve heat transfer efficiency and stability, secondly, after spring rebound force is driven connection plate movement by slider movement, make clamping block clamping clamping groove, heat collector can be conveniently adjusted to optimum angle and stably locked, to adapt to the light demand of different seasons, maximize light energy collection.

Description

Technical Field

[0001] This utility model relates to the field of solar collector technology, specifically a non-powered flat-plate solar collector. Background Technology

[0002] Flat-plate solar water heaters are designed and developed as supporting facilities for low-rise residential buildings. The water tank is placed on the balcony, roof, wall, etc., while the flat-plate solar collector is placed on the south facade of the building, on the balcony, window, roof, or wall. The collector and water tank are separate and can be flexibly installed on the roof, skylight, balcony, or wall without location restrictions, achieving integration with high-rise buildings and the environment.

[0003] Existing patent document CN212692162U discloses a flat-plate solar collector and solar thermal collection system, including a heat-absorbing component. By setting a perforated plate or a raised plate, the perforated plate or raised plate can still receive sunlight even when the vertically installed transparent cover cannot receive sunlight. Therefore, compared with the transparent cover in the prior art, the setting of the perforated plate or raised plate increases the light-receiving angle range of the transparent cover in the vertically installed flat-plate solar collector, prolongs the heat absorption time of the heat-absorbing component, prolongs the heat collection time of the flat-plate solar collector of this utility model, prolongs the heating time, and makes it more convenient for users.

[0004] Although the existing technology has many beneficial effects, the following problems still exist: During the use of the device, the liquid inside the collector tube near the tube wall is heated more than the liquid in the center, resulting in uneven heating and evaporation, and the vapor and liquid are not easy to separate and circulate, leading to low heat transfer efficiency; secondly, during the use of the device, the collector is threaded to the wall through the limiting plate, which makes it inconvenient to adjust the angle to adapt to different seasonal light conditions, and needs to be improved. In view of this, we propose a non-powered flat plate solar collector. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved: To address the issues mentioned above, such as the liquid near the tube wall receiving more heat than the liquid at the center, uneven heating and evaporation, difficulty in separating and circulating the vapor and liquid leading to low heat transfer efficiency, and the inconvenience of adjusting the angle of the collector to adapt to different seasonal lighting conditions due to the threaded connection of the collector to the wall via a limiting plate, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a non-powered flat-plate solar collector with a multi-stage capillary structure that facilitates uniform heating, and a separated vapor-liquid flow channel that enables efficient flow separation and circulation, effectively improving heat transfer efficiency and stability. This allows the collector to be easily adjusted to the optimal angle to adapt to the light requirements of different seasons and maximize the collection of solar energy.

[0008] 2. Technical Solution: To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A non-powered flat-plate solar collector includes a base with support plates on both sides of its top. Water pipes are rotatably connected to the side walls of both support plates. A heat exchange box is located at one end of each water pipe. An installation frame is located at the bottom of the heat exchange box. Multiple superconducting tubes are located at the bottom of the inner cavity of the installation frame. Multiple capillary bands are located at the bottom of the inner circumference of each superconducting tube. Capillary blocks are located at the top of the inner circumference of each capillary band. A flow guide shroud is located at the top of the capillary band. An air vent is located in the center of the top of the flow guide shroud. Multiple notches are located on the outer circumference of the flow guide shroud. Copper foam is located at the top of the inner circumference of the superconducting tube. A hydrophobic coating is also present on the inner circumference of the superconducting tube. A transparent cover plate is located at one end of the side wall of the inner cavity of the installation frame. A sliding groove is located on the top of the base. The copper foam is used to actively adsorb high-temperature superconducting liquid vapor using capillary force, facilitating heat concentration at the head of the superconducting tube for efficient water heating.

[0009] In a preferred embodiment of this utility model of a non-powered flat-plate solar collector, a slider is provided at the bottom of the sliding groove, a first hinge seat is provided at the top of the slider, a connecting rod is hinged to the inner wall of the first hinge seat, and a second hinge seat located at the bottom of the side wall of the mounting frame is hinged to the other end of the connecting rod. A slot is provided on the side wall of the slider, and a connecting plate is slidably connected to the bottom of the inner cavity of the base. Multiple locking blocks are provided on the side wall of the connecting plate, and multiple springs are located on the side wall of the inner cavity of the base. The connecting plate is used to integrate multiple locking blocks for convenient simultaneous control.

[0010] In a preferred embodiment of this utility model of a non-powered flat-plate solar collector, the top of the outer circumference of the superconducting pipe, penetrating the bottom of the heat exchange box, is provided with multiple fins, the fins being made of a copper-zinc alloy. Copper-zinc alloy is a lower-cost material.

[0011] In a preferred embodiment of the non-powered flat-plate solar collector of this utility model, the bottom of the hydrophobic coating extends into the gap between adjacent capillary bands, and the size and position of the notch match the size and position of the gap between adjacent capillary bands.

[0012] As a preferred embodiment of the non-powered flat-plate solar collector of this utility model, the base has a groove on its side wall, and the connecting plate has a handle on its other side wall.

[0013] In a preferred embodiment of the non-powered flat-plate solar collector of this utility model, the size of the sliding groove matches the size of the slider, and the size and position of the slot match the size and position of the locking block.

[0014] As a preferred embodiment of the non-powered flat-plate solar collector of this utility model, the bottom of both sides of the base is provided with multiple mounting blocks, and the top of each mounting block is threaded with a bolt.

[0015] 3. Beneficial effects: Compared with the prior art, the beneficial effects of this utility model are: This type of non-powered flat-plate solar collector uses foamed copper to facilitate uniform heating of the superconducting condenser section, which facilitates stable heating of the water inside the heat exchange box. It also improves the efficiency of solar energy absorption and evaporation by allowing the superconducting liquid to be adsorbed and then contacted with the superconducting shell through the capillary band and capillary block. The flow guide hood facilitates the separation of vapor and liquid flow channels to achieve efficient diversion and circulation, effectively improving heat transfer efficiency and stability. This type of non-powered flat-plate solar collector uses a sliding block to move a spring, which in turn moves a connecting plate to engage a locking slot. This allows the collector to be easily adjusted to the optimal angle and then locked in place, adapting to the sunlight requirements of different seasons and maximizing solar energy collection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of a non-powered flat-plate solar collector according to this utility model; Figure 2 This is a schematic diagram of the internal structure of the mounting frame of a non-powered flat-plate solar collector according to this utility model; Figure 3 This is a schematic cross-sectional view of the superconducting structure of a non-powered flat-plate solar collector according to this utility model; Figure 4 This is a cross-sectional diagram showing the structure of the capillary guide shroud of a non-powered flat-plate solar collector according to this utility model. Figure 5This is a schematic diagram showing the disassembled slider block structure of a non-powered flat-plate solar collector according to this utility model.

[0017] The following are the labels in the diagram: 1. Base; 2. Support plate; 3. Water pipe; 4. Heat exchanger; 5. Mounting frame; 6. Superconductor; 7. Capillary band; 8. Capillary block; 9. Flow guide; 10. Air inlet; 11. Notch; 12. Copper foam; 13. Hydrophobic coating; 14. Transparent cover; 15. Slide groove; 16. Slider; 17. First hinge seat; 18. Connecting rod; 19. Second hinge seat; 20. Slot; 21. Connecting plate; 22. Locking block; 23. Spring; 24. Fin; 25. Handle; 26. Mounting block; 27. Bolt. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0020] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0023] This utility model provides an overall structural schematic diagram of an embodiment of a non-powered flat-plate solar collector, including: Please see Figures 1-5This embodiment of a non-powered flat-plate solar collector includes a base 1. Support plates 2 are welded to both sides of the top of the base 1. Water pipes 3 are rotatably connected to the side walls of both support plates 2. The water pipes 3 form channels for water circulation in the system, allowing cold water to enter and hot water to flow out. A heat exchange box 4 is welded to one end of the water pipe 3. A mounting frame 5 is welded to the bottom of the heat exchange box 4. Multiple superconducting pipes 6 are threaded to the bottom of the inner cavity of the mounting frame 5. The superconducting pipes 6 utilize the phase change circulation of the internal superconducting liquid to rapidly transfer absorbed solar energy to the heat exchange box 4. Multiple capillary bands 7 are sintered to the bottom of the inner circumference of the superconducting pipes 6. Capillary blocks 8 are sintered to the top of the inner circumference of the capillary bands 7. The capillary bands 7 work in conjunction with the capillary blocks 8 to draw superconducting liquid from the bottom using capillary force, allowing it to spread evenly in the evaporation section, enhancing heating and evaporation. The top of the capillary bands 7... The superconducting tube 6 is welded with a flow guide shroud 9, which provides structural guidance for the escape of steam and the return of liquid, and separates them to avoid gas-liquid collision interference affecting circulation. A gas vent 10 is opened in the middle of the top of the flow guide shroud 9, which allows the superconducting liquid vapor to flow upward from the center. Multiple notches 11 are opened on the outer circumference of the flow guide shroud 9. The top of the inner circumference of the superconducting tube 6 is sintered with foamed copper 12, which is used to capillary the high-temperature superconducting liquid vapor so that the head of the superconducting tube 6 inserted into the heat exchange box 4 is heated evenly and efficiently. The inner circumference of the superconducting tube 6 is coated with a hydrophobic coating 13, which is used to prevent the superconducting liquid from forming a liquid film and staying on the top of the inner circumference of the superconducting tube 6, and to facilitate the formation of droplets falling back. A transparent cover plate 14 is threaded to one end of the inner cavity side wall of the mounting frame 5, and a sliding groove 15 is opened on the top of the base 1.

[0024] It is worth noting that, in order to adapt to the light conditions of different seasons, specifically, a slider 16 is slidably connected to the bottom of the slide 15, a first hinge seat 17 is welded to the top of the slider 16, a connecting rod 18 is hinged to the inner wall of the first hinge seat 17, and a second hinge seat 19 located at the bottom of the side wall of the mounting frame 5 is hinged to the other end of the connecting rod 18. The first hinge seat 17 and the second hinge seat 19 are used as fixed fulcrums for the connecting rod 18 on the slider 16 and the mounting frame 5, respectively, to convert the linear motion of the slider 16 into the rotational motion of the mounting frame 6. A slot 20 is opened on the side wall of the slider 16. The slot 20 is used to engage with the locking block 22 to fix the slider 16 in a specific position in the slide 15, thereby locking the current tilt angle of the collector. A connecting plate 21 is slidably connected to the bottom of the inner cavity of the base 1. Multiple locking blocks 22 are welded to the side wall of the connecting plate 21. Multiple springs 23 located on the side wall of the inner cavity of the base 1 are welded to the side wall of the connecting plate 21. The springs 23 are used to rebound and drive the connecting plate 21 to move and reset, so that the locking blocks 22 are reset.

[0025] Next, in order to enhance the heat exchange effect, specifically, multiple fins 24 are welded to one end of the top of the outer circumference of the superconductor 6 that penetrates the bottom of the heat exchange box 4. The fins 24 are made of copper-zinc alloy. The copper-zinc alloy fins 24 increase the contact area with the water in the heat exchange box 4, thereby enhancing the heat exchange effect.

[0026] Meanwhile, in order to prevent microscopic gaps from causing insufficient heat exchange, specifically, the bottom of the hydrophobic coating 13 extends into the gap between adjacent capillary bands 7. The size and position of the notch 11 match the size and position of the gap between adjacent capillary bands 7. The extension of the hydrophobic coating 13 into the gap between adjacent capillary bands 7 facilitates the smooth return of the condensed superconducting liquid to the bottom. The notch 11, which matches the size and position of the gap between adjacent capillary bands 7, prevents the return of the condensed superconducting liquid from being blocked.

[0027] Furthermore, to facilitate use by staff, a groove is provided on the side wall of the base 1, and a handle 25 is welded to the other side wall of the connecting plate 21. The handle 25 makes it easy for staff to pull the connecting plate 21, and the groove makes it easy to hide the handle 25 to avoid external accidental bumps affecting stability.

[0028] It is worth noting that, in order to prevent the mounting frame 5 from shaking, specifically, the size of the slide groove 15 matches the size of the slider 16, and the size and position of the slot 20 matches the size and position of the block 22. The slot 20, which matches the size of the block 22, makes the connection more stable and prevents the flat plate solar collector from shaking.

[0029] Finally, to improve installation stability, specifically, multiple mounting blocks 26 are welded to the bottom of both side walls of the base 1, and bolts 27 are threaded to the top of each mounting block 26. By screwing the bolts 27 into the mounting blocks 26, the base 1 can be stably installed in the required position for solar thermal collectors.

[0030] Combination Figures 1-5 The specific usage process of this embodiment of a non-powered flat-plate solar collector is as follows: 1: When this device is used as a non-powered flat-plate solar collector, sunlight shines through the transparent cover plate 14 onto the superconducting tube 6. The capillary band 7 and capillary block 8 at the bottom of the superconducting tube 6 use capillary force to draw in the superconducting liquid, causing it to be heated and evaporated evenly in the evaporation section. The generated superconducting liquid vapor flows upward through the air inlet 10 at the top of the guide shroud 9, while the condensed superconducting liquid flows downward through the notch 11 on the outer circumference of the guide shroud 9. The vapor rises to the foam copper 12 at the top of the superconducting tube 6 and is condensed. The released heat is transferred to the water in the heat exchange box 4 through the head of the superconducting tube 6. The hydrophobic coating 13 on the top of the inner circumference of the superconducting tube 6 causes the condensate to drip down instead of forming a liquid film. The water flows through the water pipe 3 and circulates in the heat exchange box 4 to complete the heating. 2: When the angle of the collector needs to be adjusted, the operator uses a tool to pull the handle 25 outward, causing the connecting plate 21 to slide and compress the spring 23. The locking block 22 disengages from the slot 20 on the side wall of the slider 16, releasing the lock on the slider 16. The slider 16 is pushed along the slide groove 15. The movement of the slider 16 drives the connecting rod 18 to move through the first hinge seat 17 at its top. The other end of the connecting rod 18 pushes or pulls the mounting frame 5 through the second hinge seat 19, causing it to rotate around the axis of the water pipe 3, thereby changing the tilt angle of the entire collector section. When the handle 25 is released, the compressed spring 23 rebounds, pushing the connecting plate 21 and the locking block 22 back to their original positions, so that the locking block 22 re-engages into the corresponding slot 20 on the slider 16 to complete the locking.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A non-powered flat-plate solar collector, characterized in that, The device includes a base (1), with support plates (2) on both sides of the top of the base (1). Water pipes (3) are rotatably connected to the side walls of the two support plates (2). A heat exchange box (4) is provided at one end of the water pipe (3). An installation frame (5) is provided at the bottom of the heat exchange box (4). Multiple superconductors (6) are provided at the bottom of the inner cavity of the installation frame (5). Multiple capillary bands (7) are provided at the bottom of the inner circumference of the superconductor (6). Capillary blocks (8) are provided at the top of the inner circumference of the capillary bands (7). A flow guide (9) is provided at the top of the flow guide (9). An air guide port (10) is opened in the middle of the top of the flow guide (9). Multiple notches (11) are opened on the outer circumference of the flow guide (9). Foamed copper (12) is provided at the top of the inner circumference of the superconductor (6). A hydrophobic coating (13) is provided on the inner circumference of the superconductor (6). A transparent cover plate (14) is provided at one end of the side wall of the inner cavity of the installation frame (5). A sliding groove (15) is opened at the top of the base (1).

2. The non-powered flat-plate solar collector according to claim 1, characterized in that, The bottom of the slide (15) is provided with a slider (16), the top of the slider (16) is provided with a first hinge seat (17), the inner wall of the first hinge seat (17) is hinged with a connecting rod (18), the other end of the connecting rod (18) is hinged with a second hinge seat (19) located at the bottom of the side wall of the mounting frame (5), the side wall of the slider (16) is provided with a slot (20), the bottom of the inner cavity of the base (1) is slidably connected with a connecting plate (21), the side wall of the connecting plate (21) is provided with multiple locking blocks (22), the side wall of the connecting plate (21) is provided with multiple springs (23) located on the side wall of the inner cavity of the base (1).

3. The non-powered flat-plate solar collector according to claim 2, characterized in that, The top of the outer circumference of the superconducting tube (6) is provided with multiple fins (24) at one end that penetrates the bottom of the heat exchange box (4). The fins (24) are made of copper-zinc alloy.

4. The non-powered flat-plate solar collector according to claim 3, characterized in that, The bottom of the hydrophobic coating (13) extends into the gap between the adjacent capillary bands (7), and the size and position of the notch (11) match the size and position of the gap between the adjacent capillary bands (7).

5. The non-powered flat-plate solar collector according to claim 4, characterized in that, The base (1) has a groove on its side wall, and the connecting plate (21) has a handle (25) on its other side wall.

6. The non-powered flat-plate solar collector according to claim 5, characterized in that, The size of the slide (15) matches the size of the slider (16), and the size and position of the slot (20) match the size and position of the block (22).

7. The non-powered flat-plate solar collector according to claim 4, characterized in that, The base (1) has multiple mounting blocks (26) on the bottom of both side walls, and the top of each mounting block (26) is threaded with a bolt (27).

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