Aluminum casting solar power generation heat collection plate

Abstract

The utility model belongs to the technical field of heat exchange plates, particularly relates to an aluminum-cast solar power generation heat collection plate, and aims to solve the problems that the heat conduction efficiency is reduced, a copper pipe shifts or falls off to influence the normal operation of equipment and the maintenance difficulty and cost are increased due to the fact that a heat exchange copper pipe is directly fixed below the heat exchange plate in the prior art. Comprising a heat exchange plate main plate, a heat exchange plate flow channel arranged on the heat exchange plate main plate and supporting partition ribs arranged in the heat exchange plate flow channel, the heat exchange plate main plate and the supporting partition ribs form a stable heat exchange platform, and the heat exchange plate flow channel guides a heat transfer medium to flow in a heat collection plate. The heat exchange plate runner comprises a first main pipe, a second main pipe and a branch pipe arranged between the first main pipe and the second main pipe, and a first communication port and a second communication port are formed in the two ends of the first main pipe and the two ends of the second main pipe respectively. And the efficient heat exchange performance of the heat collection plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange plates, in particular to an aluminum cast solar power generation heat collecting plate. Background Art

[0002] Solar thermal panels, also known as absorber panels, heat collectors, or heat receiving panels, absorb sunlight incident through a transparent cover, converting the energy into heat, which is then transferred through a heat-collecting fluid. They are widely used in solar water heating systems and other applications.

[0003] In existing designs, heat exchange copper tubes are generally fixed on the heat exchange plate mainboard through a specific process, and the heat exchange copper tubes are connected to the external circulation system. This method has the following problems:

[0004] Fixing the heat exchange copper tube directly under the heat exchange plate cannot ensure sufficient contact between the copper tube and the heat exchange plate, resulting in reduced heat conduction efficiency.

[0005] Fixing the copper heat exchange tubes directly under the heat exchanger plates presents a risk of insecure fixation. This can occur, especially in high-temperature and high-pressure environments, where the copper tubes can shift or fall out due to thermal expansion and contraction, impacting the normal operation of the equipment. Improper fixing can also lead to insufficient sealing between the copper tubes and the heat exchanger plates, causing leakage of the working medium and compromising the overall performance and safety of the equipment.

[0006] Fixing the heat exchange copper tube directly under the heat exchange plate will increase the complexity of installation, requiring more precise size control and more complex fixing process. Once the heat exchange copper tube has a problem, the entire heat exchange plate needs to be removed for repair or replacement, which increases the difficulty and cost of maintenance. Utility Model Content

[0007] The utility model provides an aluminum cast solar power generation collector plate, which solves the shortcomings of the prior art in which the heat exchange copper tubes are directly fixed under the heat exchange plate, resulting in reduced heat conduction efficiency, displacement or detachment of the copper tubes, affecting the normal operation of the equipment, and increasing the difficulty and cost of maintenance.

[0008] The utility model provides the following technical solutions:

[0009] A cast aluminum solar power generation collector plate, comprising a heat exchange plate main board, a heat exchange plate flow channel arranged on the heat exchange plate main board, and supporting ribs arranged in the heat exchange plate flow channel, the heat exchange plate main board and the supporting ribs forming a stable heat exchange platform, the heat exchange plate flow channel guiding the heat transfer medium to flow in the heat collector plate, the heat exchange plate flow channel comprising a first main pipe, a second main pipe and a branch pipe arranged between the first main pipe and the second main pipe, the first main pipe and the second main pipe having a first connecting port and a second connecting port at both ends, being connected to an external circulation system through the first connecting port and the second connecting port, the branch pipe having two ends respectively connected to the first main pipe and the second main pipe, forming a fluid network in contact with the heat collector plate main board.

[0010] In a possible embodiment, the first main pipe and the second main pipe are arranged along the width direction of the heat exchange plate main board, spanning the shorter side of the heat collecting plate to form a wide fluid inlet and outlet, and the branch pipe is arranged along the length direction of the heat exchange plate main board.

[0011] In a possible embodiment, the supporting ribs include first supporting ribs arranged along the width direction of the heat exchange plate mainboard, and second supporting ribs arranged along the length direction of the heat exchange plate mainboard. The first supporting ribs and the second supporting ribs are combined to form a supporting network.

[0012] In a possible implementation manner, an arc-shaped chamfer is formed between the branch pipe and the heat exchange plate main board.

[0013] In a possible embodiment, connection blocks are formed at the four corners of the heat exchange plate mainboard, and the connection blocks are provided with mounting ports for mounting pipe interfaces and fixing bolt holes for mounting fixing bolts.

[0014] In a possible implementation manner, the heat exchange plate mainboard, the heat exchange plate flow channels, and the supporting ribs are formed by casting an aluminum alloy.

[0015] In a possible embodiment, the pipe interface is formed as a whole by prefabricated components embedded and cast, and one end of the pipe interface is connected to the first main pipe or the second main pipe, and the other end is connected to the outside world. The external heat exchange medium enters the first main pipe, the branch pipe and the second main pipe through the pipe interface and flows in an orderly manner.

[0016] In a possible implementation, the fixing bolt holes are integrally formed by pre-embedding and casting prefabricated steel components.

[0017] In a possible embodiment, the plate surface of the heat exchange plate main plate is integrally formed by a sand mold, and the bottom plate, side plates, first main pipe, second main pipe and branch pipe surfaces of the heat exchange plate main plate are integrally formed by a steel mold.

[0018] In a possible embodiment, the board surface retains the original concave and convex surface of the foundry piece, the board surface is coated with a black body weather-resistant paint layer, or the board surface is affixed with a solar photovoltaic power generation film.

[0019] It should be understood that the above general description and the following detailed description are merely illustrative and do not limit the present invention.

[0020] In the present invention, a wide fluid inlet and outlet are formed across the shorter side of the heat collecting plate, so that the fluid is more evenly distributed in the heat collecting plate, reducing flow resistance and improving the uniformity of heat exchange, making it easier to integrate the heat collecting plate into existing solar power generation or hot water supply systems;

[0021] The branch pipes along the length can disperse the pressure of the fluid in the heat collecting panel, reduce the stress concentration caused by the fluid flow, and enhance the structural stability of the heat collecting panel. The flow direction of the fluid in the branch pipe is usually consistent with the flow direction of the fluid in the first and second main pipes, ensuring smooth and orderly flow of the fluid in the entire flow channel system. It can reduce the resistance of the fluid when flowing through the branch pipe and improve the flow efficiency of the fluid;

[0022] The support network formed by combining the first supporting ribs and the second supporting ribs can enhance the structural strength of the heat collecting plate in the width direction, thereby preventing the heat collecting plate from being deformed or damaged in this direction due to fluid pressure or external loads;

[0023] The arc-shaped chamfer increases the contact area between the fluid and the heat exchange plate mainboard, allowing the fluid to more fully exchange heat with the mainboard, improving the heat exchange efficiency of the heat collector plate, and allowing more solar energy to be converted into heat energy. The arc-shaped chamfer makes the connection between the branch pipe and the heat exchange plate mainboard more secure, enhancing the overall structural strength of the heat collector plate and preventing deformation or damage at the connection point of the heat collector plate due to fluid pressure or external loads.

[0024] Through aluminum alloy casting, the heat exchange plate mainboard, heat exchange plate flow channel and supporting ribs form a whole, which improves the structural strength and stability of the heat collecting plate. The aluminum alloy material is lightweight and can greatly reduce the weight of the heat collecting plate, reducing installation and operation costs. The aluminum alloy material has good thermal conductivity, ensuring the efficient heat exchange performance of the heat collecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of an aluminum cast solar power generation collector plate provided by an embodiment of the utility model;

[0026] Figure 2 A side view of an aluminum cast solar power generation collector plate provided by an embodiment of the present utility model;

[0027] Figure 3 for Figure 1 A partial enlarged schematic diagram;

[0028] Figure 4 for Figure 2 A partial enlarged schematic diagram;

[0029] Figure 5 This is a rear view of an aluminum cast solar power generation collector plate provided in an embodiment of the present utility model.

[0030] Reference numerals:

[0031] 1. First main pipe; 2. Second main pipe; 3. Second supporting rib; 4. Fixing bolt hole; 5. First connecting port; 6. Branch pipe; 7. Heat exchange plate main board; 8. Second connecting port; 9. Connecting block; 10. First supporting rib; 11. Arc chamfer. DETAILED DESCRIPTION

[0032] The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, 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, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0034] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0035] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0036] Reference Figure 1-Figure 5 An aluminum cast solar power generation collector panel includes a heat exchanger panel mainboard 7, a heat exchanger channel disposed on the mainboard 7, and support ribs disposed within the channel. The mainboard 7 and the support ribs form a stable heat exchange platform. The channel guides the heat transfer medium within the collector panel. The channel includes a first main pipe 1, a second main pipe 2, and a branch pipe 6 disposed between the first and second main pipes 1, 2. First and second main pipes 1, 2 have first and second connecting ports 5, 8 at their ends, connecting to an external circulation system through the first and second connecting ports 5, 8. The first and second main pipes 1, 2 not only transport the fluid but also provide structural support. The branch pipe 6 is connected to the first and second main pipes 1, 2 at both ends, forming a fluid network in contact with the mainboard. The branch pipe 6 increases the contact area between the fluid and the mainboard, thereby improving heat exchange efficiency. The branch pipe 6 also disperses fluid pressure and enhances structural stability.

[0037] Specifically, the length of the first main pipe 1 and the second main pipe 2 is set to 964 mm, and ten branch pipes 6 are arranged between the two first main pipes 1 and the second main pipe 2, with each branch pipe 6 spaced 100 mm apart. Support ribs are arranged in the middle along the length direction of the heat exchange plate main board 7 to evenly divide the ten support rods into two groups. The first connecting port 5 and the second connecting port 8 are connected to both ends of the first main pipe 1 and the second main pipe 2 respectively. The length of the first connecting port 5 and the second connecting port 8 is set to 20 mm. Each support rod is set to 1910 mm long, and support ribs are arranged at intervals. One support rib is set at the center and one support rib is set on both sides. The heat exchange plate main board 7 is divided into lengths of 519 mm, 481 mm, 481 mm, and 519 mm along the length direction. The thickness of the support ribs is set to 3 mm. The entire heat exchange plate main board 7 is divided into almost equal-sized rectangles by the support ribs, thereby improving the overall strength and stability. A 5 mm thick surrounding edge is also formed on the edge of the heat exchange plate main board 7, and the surrounding edge and the support ribs form a complete grid structure.

[0038] Furthermore, the first main pipe 1 and the second main pipe 2 are arranged along the width of the heat exchange plate mainboard 7, forming a wide fluid inlet and outlet across the shorter side of the heat collector. This allows for more even distribution of the fluid within the heat collector, reduces flow resistance, and improves the uniformity of heat exchange, making it easier to integrate the heat collector into existing solar power generation or hot water supply systems. Branch pipes 6 are arranged along the length of the heat exchange plate mainboard 7. These branch pipes 6 disperse the pressure of the fluid within the heat collector, reducing stress concentration caused by fluid flow and enhancing the structural stability of the heat collector. The fluid flow direction within branch pipes 6 is generally consistent with that within the first main pipe 1 and the second main pipe 2, ensuring smooth and orderly fluid flow throughout the entire flow channel system. This reduces resistance to fluid flow through branch pipes 6 and improves fluid flow efficiency.

[0039] Specifically, the diameters of the first main pipe 1 and the second main pipe 2 are set to 20 mm, and the support rods are set to 15 mm, so that the fluid is more evenly distributed in the heat collecting plate, the flow resistance is reduced, and the uniformity of heat exchange is improved, so that the heat collecting plate can be more easily integrated into the existing solar power generation or hot water supply system.

[0040] Furthermore, the supporting ribs include a first supporting rib 10 arranged along the width direction of the heat exchange plate main board 7, and a second supporting rib 3 arranged along the length direction of the heat exchange plate main board 7. The first supporting rib 10 and the second supporting rib 3 are combined to form a supporting network, which can enhance the structural strength of the heat collecting plate in the width direction and prevent the heat collecting plate from being deformed or damaged in this direction due to fluid pressure or external loads.

[0041] Specifically, the second supporting rib 3 is set at the center, and only one is set, and three first supporting ribs 10 are set at intervals. The three first supporting ribs 10, one second supporting rib 3 and the surrounding edge set around the edge of the heat exchange plate main board 7 form a supporting body, which divides the entire heat exchange plate main board 7 into 8 relatively uniform plates, thereby improving the overall structural stability.

[0042] Furthermore, an arc-shaped chamfer 11 is formed between the branch pipe 6 and the heat exchange plate main board 7. The arc-shaped chamfer 11 increases the contact area between the fluid and the heat exchange plate main board 7, so that the fluid can more fully exchange heat with the main board, thereby improving the heat exchange efficiency of the heat collecting plate and enabling more solar energy to be converted into heat energy. The arc-shaped chamfer 11 makes the connection between the branch pipe 6 and the heat exchange plate main board 7 more secure, thereby enhancing the overall structural strength of the heat collecting plate and preventing deformation or damage to the heat collecting plate at the connection due to fluid pressure or external load.

[0043] Specifically, the diameter of the branch pipe 6 is set to 15 mm, the branch pipes 6 on both sides are 50 mm away from the edge of the heat exchange plate main board 7, and the branch pipes 6 in the middle are set at intervals of 100 mm, so that the branch pipes 6 are evenly distributed, thereby improving the heat exchange efficiency. The branch pipes 6 and the heat exchange plate main board 7 are integrally formed. During the molding process, the branch pipe 6 and the heat exchange plate main board 7 are smoothly transitioned to form an arc-shaped chamfer 11, which not only improves the overall strength, but also increases the contact area and improves the heat dissipation efficiency.

[0044] Furthermore, connecting blocks 9 are formed at the four corners of the heat exchange plate main board 7, and the connecting blocks 9 are provided with mounting ports for installing pipe interfaces and fixing bolt holes 4 for installing fixing bolts, thereby ensuring the correct connection and fixation of the heat collecting plate in the fluid circulation system, so that the fluid can flow smoothly through the heat collecting plate and perform effective heat exchange.

[0045] Specifically, the length of the connecting block 9 is 29 mm, which is longer than the pipe interface, so as to facilitate the pre-embedded casting of the pipe interface. The height of the connecting block 9 is 45 mm, and an M8 threaded hole is opened in the connecting block 9 to facilitate the installation and fixation of the entire heat collecting plate.

[0046] Furthermore, the heat exchange plate main board 7, the heat exchange plate flow channel and the supporting partition ribs are formed by casting aluminum alloy. By casting aluminum alloy, the heat exchange plate main board 7, the heat exchange plate flow channel and the supporting partition ribs form a whole, which improves the structural strength and stability of the heat collecting plate. The aluminum alloy material is lightweight and can greatly reduce the weight of the heat collecting plate, reduce installation and operation costs, and the aluminum alloy material has good thermal conductivity, ensuring the efficient heat exchange performance of the heat collecting plate.

[0047] Furthermore, the pipe interface is pre-embedded and cast as one piece using prefabricated components, and one end of the pipe interface is connected to the first main pipe 1 or the second main pipe 2, and the other end is connected to the outside world. The external heat exchange medium enters the first main pipe 1, the branch pipe 6, and the second main pipe 2 through the pipe interface and flows in an orderly manner. The pipe interface and the heat collecting plate are integrally cast to form an integral structure, avoiding welding points or connection gaps in traditional connection methods, improving the sealing and structural strength of the heat collecting plate. The integral connection method reduces the resistance of the fluid during flow and improves the heat exchange efficiency. At the same time, the stable connection structure also ensures the reliability of the heat collecting plate during long-term operation. The use of prefabricated components simplifies the installation process and reduces the difficulty of construction. At the same time, since the end of the pipe interface connected to the outside world adopts a standard connection method, it also facilitates subsequent maintenance and replacement work.

[0048] Furthermore, the fixing bolt holes 4 are integrally formed by prefabricated steel components, embedded and cast in one piece. The fixing bolt holes 4 and the collector plate are also embedded and cast in one piece, forming a single, integrated structure. This improves the structural strength and stability of the collector plate, preventing loosening or falling issues associated with traditional connection methods. The precise manufacturing and accurate control of the prefabricated steel components ensures precise positioning of the fixing bolt holes 4 and facilitates installation. No additional adjustments or corrections are required during installation.

[0049] Furthermore, the surface of the heat exchange plate main board 7 is integrally formed by a sand mold, and the bottom plate, side plates, first main pipe 1, second main pipe 2 and branch pipe 6 surfaces of the heat exchange plate main board 7 are integrally formed by a steel mold. The use of a sand mold integral forming process to manufacture the surface of the heat exchange plate main board 7 can meet its requirements for complex shape and surface quality; and the use of a steel mold integral forming process to manufacture components such as the bottom plate, side plates, main pipe and branch pipe 6 can ensure the dimensional accuracy and surface finish of these components, which is beneficial to improving the overall quality and production efficiency of the solar collector panel.

[0050] Furthermore, the panel surface retains the original concave and convex surface of the found part and is coated with a black body weathering paint layer, or affixed with a solar photovoltaic film. The presence of the original concave and convex surface of the found part increases the surface area of ​​the panel, thereby increasing the contact area between the solar collector and sunlight. This allows the panel to absorb more solar energy and convert it into heat, thereby improving heat collection efficiency. The concave and convex surface increases the structural strength of the panel, making it more durable. It can resist external impact and deformation, extending the service life of the solar collector. The black body weathering paint layer has excellent heat absorption properties, which can more effectively absorb sunlight and convert it into heat energy. The solar collector panel affixed with a solar photovoltaic film not only collects heat but also converts some sunlight into electricity.

[0051] Furthermore, the surface unevenness of the heat exchange plate main board 7 is less than 2 mm. Excessive unevenness will affect the heat exchange efficiency between the heat exchange plate and the fluid. The length dimension error of the heat exchange plate main board 7 is 1 mm, thereby ensuring the interchangeability and reliability of the heat exchange plate main board 7.

[0052] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The embodiments of the present utility model and the features of the embodiments can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present utility model shall be based on the scope of protection of the claims.

Claims

1. An aluminum cast solar power generation collector plate, characterized in that: It includes a heat exchange plate main board, a heat exchange plate flow channel arranged on the heat exchange plate main board and supporting ribs arranged in the heat exchange plate flow channel. The heat exchange plate main board and the supporting ribs form a stable heat exchange platform. The heat exchange plate flow channel guides the heat transfer medium to flow in the heat collecting plate. The heat exchange plate flow channel includes a first main pipe, a second main pipe and a branch pipe arranged between the first main pipe and the second main pipe. The first main pipe and the second main pipe are provided with a first connecting port and a second connecting port at both ends. They are connected to the external circulation system through the first connecting port and the second connecting port. The two ends of the branch pipe are respectively connected to the first main pipe and the second main pipe to form a fluid network in contact with the heat collecting plate main board.

2. The aluminum cast solar power generation collector plate according to claim 1, characterized in that: The first main pipe and the second main pipe are arranged along the width direction of the heat exchange plate main board, spanning the shorter side of the heat collecting plate to form a wide fluid inlet and outlet, and the branch pipe is arranged along the length direction of the heat exchange plate main board.

3. The aluminum cast solar power generation collector plate according to claim 2, characterized in that: The supporting ribs include first supporting ribs arranged along the width direction of the heat exchange plate mainboard, and second supporting ribs arranged along the length direction of the heat exchange plate mainboard. The first supporting ribs and the second supporting ribs are combined to form a supporting network.

4. The aluminum cast solar power generation collector plate according to claim 2, characterized in that: An arc-shaped chamfer is formed between the branch pipe and the heat exchange plate main board.

5. The aluminum cast solar power generation collector plate according to claim 4, characterized in that: The four corners of the heat exchange plate mainboard are formed with connection blocks, and the connection blocks are provided with mounting ports for mounting pipe interfaces and fixing bolt holes for mounting fixing bolts.

6. The aluminum cast solar power generation collector plate according to any one of claims 1 to 5, characterized in that: The heat exchange plate mainboard, heat exchange plate flow channel and supporting ribs are formed by casting aluminum alloy.

7. The aluminum cast solar power generation collector plate according to claim 5, characterized in that: The pipe interface is formed as a whole by prefabricated components embedded and cast, and one end of the pipe interface is connected to the first main pipe or the second main pipe, and the other end is connected to the outside. The external heat exchange medium enters the first main pipe, branch pipe and second main pipe through the pipe interface and flows in an orderly manner.

8. The aluminum cast solar power generation collector plate according to claim 7, characterized in that: The fixing bolt holes are integrally formed by pre-embedding and casting of prefabricated steel components.

9. The aluminum cast solar power generation collector plate according to claim 8, characterized in that: The plate surface of the heat exchange plate main board is integrally formed by a sand mold, and the bottom plate, side plates, first main pipe, second main pipe and branch pipe surfaces of the heat exchange plate main board are integrally formed by a steel mold.

10. The aluminum cast solar power generation collector plate according to claim 9, characterized in that: The board surface retains the original concave and convex surface of the foundry piece, and the board surface is coated with a black body weather-resistant paint layer, or the board surface is affixed with a solar photovoltaic power generation film.

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