Two-way solar tube with multi-stage inner supporting structure

Abstract

The utility model relates to the technical field of two-way solar tubes, and discloses a two-way solar tube with a multi-stage inner support structure, which comprises a glass outer tube which is a device main body and is used for supporting the structure, an inner tube which is arranged inside the glass outer tube and is used for circulating gas, and a telescopic joint which is arranged inside the glass outer tube and is used for connecting the inner tube with the glass outer tube. The top of the expansion joint is fixedly connected to the bottom of the inner pipe, the expansion joint is used for controlling flow and preventing the inner pipe from expanding due to heat and preventing the outer pipe from being exploded due to cold, the supporting assembly is arranged in the inner pipe and used for improving strength and transmission heat, and the supporting assembly comprises transverse inner wall fins and vertical inner wall fins. According to the utility model, the fins increase the surface area of the inner wall, promote heat transfer, increase the turbulence of flow, improve the flow efficiency of fluid, facilitate the reduction of heat loss, ensure the long-term efficient operation of a system, solve the problems of low heat exchange efficiency and inconvenience in maintenance, and improve the working performance of the two-way solar tube.

Description

Technical Field

[0001] This utility model relates to the field of dual-channel solar tube technology, and in particular to a dual-channel solar tube with a multi-level internal support structure. Background Technology

[0002] With increasing attention to renewable energy, solar energy is gradually becoming an important energy solution. Dual-channel solar tubes, through their dual-channel design, effectively improve solar energy utilization efficiency and are widely used in hot water or hot air heating devices. This device enhances heat exchange performance through its special structure, providing reliable support for domestic and industrial hot water supply. However, current solar tube designs still face problems such as insufficient heat transfer efficiency and uneven fluid flow. Therefore, researching and developing a novel dual-channel solar tube with a multi-level internal support structure is particularly important. This invention addresses the problems of low efficiency and inconvenient maintenance, providing new ideas for the advancement of solar energy utilization technology.

[0003] Currently, existing dual-channel solar tubes mainly employ simple coaxial or parallel pipe designs, with heat transfer between the inner and outer layers relying primarily on convection and radiation. The typical inner wall structure is often relatively flat, resulting in laminar fluid flow within the pipe, leading to insufficient heat exchange. Improving heat transfer efficiency depends mainly on the photothermal conversion capability, while factors such as the thermal conductivity of the inner and outer walls, material selection, and fluid flow rate also influence the heat exchange effect. Furthermore, existing designs lack sufficient support structures, affecting the pipe's stability and pressure resistance, thus impacting overall performance.

[0004] However, existing technologies still have significant shortcomings in heat exchange efficiency, mainly manifested in large heat loss and uneven flow rate. Due to the lack of an effective boosting mechanism in traditional designs, heat cannot be fully transferred under high temperature and high flow conditions, resulting in low heat exchange efficiency. This not only affects the utilization efficiency of solar energy but also brings inconvenience to equipment maintenance. Therefore, a dual-channel solar tube with a multi-stage internal support structure is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a dual-channel solar tube with a multi-level internal support structure, which aims to improve the problems of low heat exchange efficiency and inconvenient maintenance in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dual-channel solar tube with a multi-level internal support structure includes an outer glass tube, which is the main body of the device and is used to support the structure; an inner tube, which is disposed inside the outer glass tube and is used for gas flow; an expansion joint, the top of which is fixedly connected to the bottom of the inner tube and is used to control the flow rate and prevent the inner tube from expanding due to heat and the outer tube from contracting due to cold, thus preventing the tube from bursting; and a support assembly, which is disposed inside the inner tube and is used to improve strength and heat transfer.

[0008] The support assembly includes a transverse inner wall fin and a vertical inner wall fin. The outer wall of the transverse inner wall fin is fixedly connected to the inside of the inner tube, and the outer wall of the vertical inner wall fin is fixedly connected to the inside of the inner tube. The transverse inner wall fin and the vertical inner wall fin are connected in an alternating manner. A connecting ring is fixedly connected to the outer wall of the transverse inner wall fin and the outer wall of the vertical inner wall fin. A disassembly and assembly assembly is provided inside the transverse inner wall fin.

[0009] As a further description of the above technical solution:

[0010] The assembly / disassembly assembly includes a retaining ball, the outer wall of which is slidably connected to the interior of the transverse inner wall fin.

[0011] As a further description of the above technical solution:

[0012] A pressing rod is slidably connected inside the transverse inner wall fin, and a limit disk is fixedly connected to one end of the pressing rod.

[0013] As a further description of the above technical solution:

[0014] The transverse inner wall fin has a limiting groove inside, and the outer wall of the limiting disk is slidably connected to the limiting groove.

[0015] As a further description of the above technical solution:

[0016] The limiting disc contacts the ball and is used to limit the movement of the ball.

[0017] As a further description of the above technical solution:

[0018] A spring is provided inside the transverse inner wall fin. The top of the spring is fixedly connected to the bottom of the limiting disc, and the bottom of the spring is fixedly connected to the inner wall of the limiting groove.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the fin increases the surface area of ​​the inner wall, promotes heat transfer, and at the same time improves the fluid flow efficiency by increasing the turbulence of the flow, which helps to reduce heat loss, ensure the long-term efficient operation of the system, solve the problems of low heat exchange efficiency and inconvenient maintenance, and improve the working performance of the dual-channel solar tube.

[0021] 2. In this utility model, the ball achieves its sliding function by pushing the pressing rod. When the pressing rod is pushed, the pressing rod drives the limiting disc and the spring, and cooperates with the limiting groove to make the ball slide inside the inner tube, thereby facilitating the disassembly and assembly of the inner wall fins, making it convenient for maintenance, replacement and movement. This solves the problem that multiple tools are required for disassembly and assembly in existing models, which makes disassembly inconvenient, and improves the convenience of fin disassembly and assembly. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a dual-channel solar tube with a multi-level internal support structure proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of a dual-channel solar tube with a multi-level internal support structure proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the transverse inner wall fins of a dual-channel solar tube with a multi-level internal support structure proposed in this utility model.

[0025] Legend:

[0026] 1. Outer glass tube; 2. Inner tube; 3. Expansion joint; 4. Horizontal inner wall fins; 5. Vertical inner wall fins; 6. Connecting ring; 7. Ball retainer; 8. Limiting disc; 9. Pressing rod; 10. Spring; 11. Limiting groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 1 and Figure 2This utility model provides an embodiment of a dual-channel solar tube with a multi-level internal support structure, including an outer glass tube 1, which is the main body of the device and is made of high-strength heat-resistant glass to ensure stable support and protection of the internal system from external environmental factors. It is suitable for use in high-temperature and high-pressure environments and is used to support the structure. An inner tube 2 is set inside the outer glass tube 1 and is used for gas flow. Its material is corrosion-resistant stainless steel, which can effectively resist the corrosion of internal fluids and improve its service life. An expansion joint 3 is fixedly connected to the bottom of the inner tube 2 at its top and is used to control the flow rate and prevent the inner tube 2 from expanding when heated and the outer tube from contracting when cooled and bursting. A support component is set inside the inner tube 2 and is used to improve strength and heat transfer, avoid the phenomenon of the outer tube contracting and bursting due to the thermal expansion of the inner tube 2, and ensure the safety and stability of the system.

[0029] The support assembly includes transverse inner wall fins 4 and vertical inner wall fins 5. Its flow-facing structure can effectively increase the heat exchange area and promote heat transfer. The outer wall of the transverse inner wall fins 4 is fixedly connected to the inside of the inner tube 2, and the outer wall of the vertical inner wall fins 5 is fixedly connected to the inside of the inner tube 2. The transverse inner wall fins 4 and the vertical inner wall fins 5 are staggered. A connecting ring 6 is fixedly connected to the outer wall of the transverse inner wall fins 4 and the vertical inner wall fins 5. The connecting ring 6 is made of high-temperature resistant engineering plastic, which has good corrosion resistance and strength, ensuring structural stability under high temperature and corrosive environment. The transverse inner wall fins 4 are equipped with disassembly and assembly components.

[0030] Reference Figure 2 and Figure 3 The disassembly and assembly components include a retaining ball 7, which is made of wear-resistant polymer material. The design of the retaining ball 7 allows it to slide freely within the transverse inner wall fin 4, thus effectively cooperating with the structure of the inner wall to achieve disassembly and assembly operations, improving the user's convenience in maintaining the inner wall fin. The outer wall of the retaining ball 7 is slidably connected to the inside of the transverse inner wall fin 4. A pressing rod 9 is slidably connected inside the transverse inner wall fin 4. One end of the pressing rod 9 is fixedly connected to a limiting disc 8. A limiting groove 11 is opened inside the transverse inner wall fin 4. The outer wall of the limiting disc 8 is slidably connected to the inside of the limiting groove 11. The limiting disc 8 contacts the retaining ball 7 to limit the retaining ball 7. A spring 10 is provided inside the transverse inner wall fin 4. The top of the spring 10 is fixedly connected to the bottom of the limiting disc 8, and the bottom of the spring 10 is fixedly connected to the inner wall of the limiting groove 11.

[0031] Working principle: When fluid flows in from the inlet of inner pipe 2, it comes into contact with the transverse inner wall fins 4 and vertical inner wall fins 5. The transverse inner wall fins 4 and vertical inner wall fins 5 are arranged in an interlaced cross shape, forming multiple contact points. This significantly increases the contact area between the fluid and the inner wall of the pipe, facilitating heat transfer. Due to the interlaced arrangement of the fins, the fluid is forced to change its flow direction during flow, increasing turbulence. This turbulent state breaks the laminar boundary, making the fluid flow more uniform within the pipe and improving the heat exchange rate. Furthermore, the interlaced transverse inner wall fins 4 and vertical inner wall fins 5 help disperse the fluid flow and reduce dead zones, further improving heat exchange efficiency. In this way, the inner wall fins not only effectively reduce heat loss but also ensure that the system maintains high thermal efficiency during long-term operation.

[0032] Furthermore, over time, dirt accumulates on the transverse inner wall fins 4 and vertical inner wall fins 5 of the inner tube 2, reducing heat exchange efficiency. The user simply needs to press the push rod 9. Pushing the rod 9 causes the limiting disc 8 to slide within the limiting groove 11, releasing the locking relationship with the retaining ball 7. As the limiting disc 8 slides, the spring 10 is compressed, releasing the retaining ball 7. This release allows the retaining ball 7 to slide freely within the transverse inner wall fins 4, making it easy to remove both the transverse and vertical inner wall fins 4 and 5 from the inner tube 2. This allows for easy maintenance and replacement without complex tools or technical support, improving usability. Moreover, this mechanism ensures that the fin structure is not damaged during disassembly and assembly, guaranteeing long-term stable operation of the equipment and solving the maintenance inconvenience problem of traditional designs.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-channel solar tube with a multi-level internal support structure, characterized in that, include: The outer glass tube (1) is the main body of the device and is used to support the structure; Inner tube (2), which is disposed inside the outer glass tube (1) for the circulation of gas; The top of the expansion joint (3) is fixedly connected to the bottom of the inner tube (2) to control the flow rate and prevent the inner tube (2) from expanding when heated and contracting when cooled, causing the outer tube to burst. The support assembly, disposed inside the inner tube (2), is used to improve strength and heat transfer. The support assembly includes a transverse inner wall fin (4) and a vertical inner wall fin (5). The outer wall of the transverse inner wall fin (4) is fixedly connected to the inside of the inner tube (2), and the outer wall of the vertical inner wall fin (5) is fixedly connected to the inside of the inner tube (2). The transverse inner wall fin (4) and the vertical inner wall fin (5) are connected in an alternating manner. A connecting ring (6) is fixedly connected to the outer wall of the transverse inner wall fin (4) and the vertical inner wall fin (5). A disassembly and assembly assembly is provided inside the transverse inner wall fin (4).

2. A dual-channel solar tube with a multi-level internal support structure according to claim 1, characterized in that: The assembly and disassembly assembly includes a retaining ball (7), the outer wall of which is slidably connected to the interior of the transverse inner wall fin (4).

3. A dual-channel solar tube with a multi-level internal support structure according to claim 2, characterized in that: The transverse inner wall fin (4) is slidably connected to a pressing rod (9), and one end of the pressing rod (9) is fixedly connected to a limiting disk (8).

4. A dual-channel solar tube with a multi-level internal support structure according to claim 3, characterized in that: The transverse inner wall fin (4) has a limiting groove (11) inside, and the outer wall of the limiting disc (8) is slidably connected to the limiting groove (11).

5. A dual-channel solar tube with a multi-level internal support structure according to claim 4, characterized in that: The limiting disc (8) contacts the ball (7) and is used to limit the ball (7).

6. A dual-channel solar tube with a multi-level internal support structure according to claim 5, characterized in that: A spring (10) is provided inside the transverse inner wall fin (4). The top of the spring (10) is fixedly connected to the bottom of the limiting disc (8), and the bottom of the spring (10) is fixedly connected to the inner wall of the limiting groove (11).

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