An integrated double-channel solar flow guide tube

Abstract

The present invention relates to the technical field of solar thermal utilization, and provides an integrated double-channel solar water guide tube, comprising a tube body, a heat-conducting tube extending along the length direction of the tube body is arranged inside the tube body, and the tube walls on the upper and lower sides of the heat-conducting tube are an integrated molding structure with the tube body; the heat-conducting tube divides the inner cavity of the tube body into an upper flow channel and a lower flow channel, and the internal cavity of the heat-conducting tube is a heat-conducting chamber, and the heat-conducting chamber is completely isolated from the upper flow channel and the lower flow channel; at least one of the left and right side walls of the heat-conducting tube is an outer wall directly connected to the tube body, and a plurality of superheat-conducting tube jacks arranged along the length direction of the tube are provided on the outer wall. The integrated double-channel solar water guide tube provided by the present invention, because it adopts an integrated molding structure, eliminates the welding process, reduces the manufacturing and maintenance costs, and adopts a straight-through heat-conducting chamber, increases the heat-conducting area, reduces the circulation resistance of the heat-conducting medium, and improves the efficiency of heat transfer.

Description

Technical Field

[0001] The present invention relates to the technical field of solar thermal utilization, and in particular to an integrated double-channel solar flow guide tube. Background Art

[0002] At present, the heat collection method of the superheat pipe solar thermal system is that the vacuum tube absorbs heat and transfers the heat to the flow tube through the superheat pipe. The water and other media in the flow tube are quickly heated by the rapid temperature rise of the superheat pipe, thereby quickly realizing light-to-heat conversion.

[0003] In the prior art, the flow guide pipe is a tubular structure, and a heat transfer chamber of the superheat pipe is formed by drilling a hole in the flow guide pipe body and inserting a pipe sleeve, and then the flow channel of the flow guide pipe is completely sealed and isolated from the heat transfer chamber after welding. The flow guide pipe of this structure involves three processes of drilling, pipe insertion and welding, which not only leads to high manufacturing cost due to low production efficiency, but also has problems such as the quality and stability of the welding seam between the pipe sleeve and the flow guide pipe body, thereby affecting its later maintenance cost and service life. In addition, the flow of the heat transfer medium in the flow guide pipe is hindered by the pipe sleeve, which will also cause poor circulation of the heat transfer medium and reduce its heat transfer efficiency. Summary of the invention

[0004] The object of the present invention is to provide an integrated double-channel solar flow guide tube with low manufacturing cost and high heat transfer efficiency.

[0005] The present invention is implemented as follows: an integrated double-channel solar water guide tube comprises a tube body, wherein the tube body is provided with a heat conduction tube extending along the length direction thereof, and the tube walls on both upper and lower sides of the heat conduction tube are an integrated molding structure with the tube body;

[0006] The heat conducting pipe divides the inner cavity of the pipe body into an upper flow channel and a lower flow channel, and the inner cavity of the heat conducting pipe is a heat conducting chamber, and the heat conducting chamber is completely isolated from the upper flow channel and the lower flow channel;

[0007] At least one of the left and right side walls of the heat-conducting pipe is an outer wall directly connected to the pipe body, and the outer wall is provided with a plurality of superheat-conducting pipe insertion holes arranged along the length direction thereof.

[0008] As an improved solution, the upper and lower tube walls of the heat-conducting tube include a main tube wall and a transition tube wall, and the two transition tube walls are in an outward-turned structure, together forming a trumpet-mouth structure that is wide outside and narrow inside.

[0009] As an improved solution, the main pipe wall is provided with a plurality of mounting grooves extending along the width direction thereof, and the notches of the mounting grooves correspond to the positions of the superconducting heat pipe insertion holes.

[0010] As an improved solution, the installation groove is formed by deforming the main pipe wall through an extrusion molding process, and the cross-section of the installation groove is an arc-shaped, V-shaped, or polygonal structure.

[0011] As an improved solution, the tube body and the heat conducting tube are made of an integrally formed aluminum alloy.

[0012] As an improved solution, the left and right side walls of the heat conducting pipe are both the outer walls.

[0013] As an improved solution, at least one of the outer walls and the tube body is an integrally formed structure.

[0014] As an improved solution, one of the left and right side walls of the heat conducting pipe is an outer wall and the other is an inner wall;

[0015] The inner wall is located on the inner side of the tube body and is integrally connected with the tube body through a heat conducting plate.

[0016] As an improved solution, heat-conducting fins are provided on the tube body at positions corresponding to the superconducting heat pipe insertion holes.

[0017] As an improved solution, the main body of the tube is a square structure, and gradually transitions into a circular structure at both ends.

[0018] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0019] The integrated double-channel solar energy guide tube provided by the present invention has a heat-conducting tube integrally formed therewith arranged in the tube body, and at least one of the left and right side walls is directly connected to the tube body, isolating the inner cavity of the tube body into a heat-conducting chamber and a flow channel isolated from each other. This makes it convenient for workers to directly integrally form the tube body and the heat-conducting tube, and then seal and plug the openings at both ends of the heat-conducting tube, and then open superheat-conducting tube jacks at corresponding positions on the outer wall, thereby eliminating the need for welding the tube sleeve, thereby improving the manufacturing efficiency of the integrated double-channel solar energy guide tube and reducing the manufacturing cost, and realizing the natural isolation between the heat-conducting chamber and the flow channel, preventing the heat-conducting medium in the flow channel from leaking into the heat-conducting chamber, reducing the maintenance cost, and extending the service life. Since the straight-through heat-conducting chamber is adopted, the flow resistance of the heat-conducting medium is also reduced, so that the heat-conducting medium can be heated quickly, thereby improving the efficiency of heat exchange.

[0020] By isolating the inner cavity of the tube body into two upper and lower flow channels through the heat-conducting pipe, the heat-conducting medium can flow through the dual channels of the integrated double-channel solar water guide tube, so that the superheat-conducting pipe can heat the heat-conducting medium in the two channels at the same time, thereby accelerating the heat transfer efficiency; when the two channels are connected through the pipe plug, the heat-conducting medium can flow between the two channels, thereby accelerating the flow rate of the heat-conducting medium; when the lower ends of the two channels are closed through the pipe seal, the heat-conducting medium in the two channels can circulate separately; when the lower ends of the two channels are connected to the external pipeline through the pipe joint, the integrated double-channel solar water guide tube has the pressure-bearing capacity, thereby ensuring the water pressure of the hot water and improving the user experience.

[0021] The transition tube wall is set to an outward-turned structure to form a trumpet-mouth structure that is wide outside and narrow inside. This can facilitate the installation and removal of the superconducting heat pipe and is also beneficial to the extrusion forming of the installation groove to prevent the structural changes of the main tube wall during deformation from affecting the structure of the tube body.

[0022] A plurality of mounting grooves extending along the width direction of the main pipe wall are arranged, and the notches of the mounting grooves correspond to the positions of the superconducting heat pipe insertion holes, so that the heat conduction area between the superconducting heat pipe and the heat pipe can be increased, thereby improving the efficiency of heat transfer.

[0023] The installation groove is formed by deforming the main pipe wall through an extrusion molding process, which can improve the molding efficiency of the installation groove and ensure the overall isolation structure of the heat pipe.

[0024] The cross-section of the mounting groove is an arc, V-shaped or polygonal structure, which can effectively increase the heat exchange area between the heat pipe and the superconducting heat pipe. After the heat-conducting medium in the flow channel is heated, the main pipe wall will deform toward the superconducting heat pipe, and then stick to the superconducting heat pipe, thereby fixing the superconducting heat pipe.

[0025] The one-piece tube body and heat pipe made of aluminum alloy can reduce material costs while ensuring heat transfer efficiency, and also facilitate the implementation of the one-piece molding process, thereby reducing manufacturing costs.

[0026] By setting the left and right side walls of the heat pipe as outer walls, the double-sided superconducting heat pipe insertion of the integrated double-channel solar flow pipe can be achieved, which can greatly improve the heat transfer efficiency.

[0027] At least one outer wall and the tube body are integrally formed structures, which can facilitate the implementation of the integral forming process of the integral double-channel solar guide tube, reduce the use of materials and installation or welding procedures, and reduce manufacturing costs.

[0028] Of the left and right side walls of the heat conduction pipe, one is set as an outer wall and the other is set as an inner wall. The inner wall is located on the inner side of the pipe body and is integrally connected to the pipe body through a heat conduction plate. This makes the integrated double-channel solar water conduction pipe suitable for single-side insertion applications, and can also reduce material usage and manufacturing costs.

[0029] By arranging heat-conducting fins at positions on the tube body corresponding to the superheat pipe insertion holes, the heat-conducting fins can directly absorb heat from the vacuum tube and transfer it directly to the inside of the tube body, thereby directly heating the heat-conducting medium in the upper and lower flow channels, further improving the efficiency of heat transfer.

[0030] The main part of the tube body is set to a square structure, and gradually transitions to a circular structure at both ends. This not only facilitates the installation of both ends of the integrated double-channel solar guide tube with external devices or components to ensure its sealing, but also ensures the total capacity of the upper and lower channels and ensures the heat transfer efficiency.

[0031] The integrated double-channel solar guide tube provided by the present invention adopts an integrated molding structure, which eliminates the welding process and reduces the manufacturing and maintenance costs. It also adopts a straight-through heat conduction chamber, which increases the heat conduction area, reduces the flow resistance of the heat conduction medium, and improves the efficiency of heat transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of a solar guide tube in the prior art;

[0033] Figure 2 yes Figure 1 A front view of the guide tube shown;

[0034] Figure 3 yes Figure 2 A schematic diagram of the cross-section enlarged in the AA direction;

[0035] Figure 4 is a schematic structural diagram of an integrated double-channel solar flow guide tube provided in Embodiment 1 of the present invention;

[0036] Figure 5 yes Figure 4 The front view of the integrated dual-channel solar flow guide tube shown;

[0037] Figure 6 yes Figure 5 A schematic diagram of the cross-section enlarged in the BB direction;

[0038] Figure 7 is a schematic diagram of the structure of a heat pipe provided by an embodiment of the present invention;

[0039] Figure 8 yes Figure 7 A front view of the heat pipe shown;

[0040] Fig. 9 yes Figure 8 Cross-sectional view in CC direction;

[0041] Fig.10 Schematic diagram of the relative positions of the tube body and the heat conduction tube of the integrated double-channel solar flow guide tube provided in the second embodiment of the present invention;

[0042] Among them: a1-tube body, a2-tube sleeve, a3-weld, a4-flow channel, 1a-tube body, 2-heat conduction pipe, 21-outer wall, 22-superheat conduction pipe jack, 23-main pipe wall, 24-transition pipe wall, 25-installation groove, 26-inner wall, 27-heat conduction plate, 31-upper flow channel, 32-lower flow channel, 4-heat conduction chamber, 5-heat conduction fins. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] In the prior art, such as Figures 1 to 3 As shown, the flow guide pipe is a tubular structure, and a heat transfer chamber of the super heat pipe is formed by drilling a hole on the flow guide pipe body a1 and inserting a pipe sleeve a2, and then the pipe sleeve a2 is welded to the corresponding position of the pipe body a1 (for ease of understanding, the weld a3 is marked in the figure), and after welding, the flow guide pipe flow channel a4 is completely sealed and isolated from the heat transfer chamber. The flow guide pipe of this structure involves three processes of drilling, pipe insertion and welding, which not only has the problem of high manufacturing cost due to low production efficiency, but also has the problem of quality and stability of the welding weld a3 between the pipe sleeve a2 and the flow guide pipe body a1, which affects its later maintenance cost and service life. In addition, the flow of the heat transfer medium in the flow guide pipe is hindered by the pipe sleeve a2, which will also cause poor circulation of the heat transfer medium and reduce its heat transfer efficiency.

[0045] The integrated double-flow channel solar energy guide tube provided by the present invention comprises a tube body, wherein a heat conducting tube extending along the length direction of the tube body is arranged inside the tube body, and the tube walls on the upper and lower sides of the heat conducting tube are both an integrated molding structure with the tube body; the heat conducting tube divides the inner cavity of the tube body into an upper flow channel and a lower flow channel, and the internal cavity of the heat conducting tube is a heat conducting chamber, which is completely isolated from the upper flow channel and the lower flow channel; at least one of the left and right side walls of the heat conducting tube is an outer wall directly connected to the tube body, and a plurality of super heat conducting tube jacks arranged along the length direction of the tube are opened on the outer wall.

[0046] Embodiment 1:

[0047] Figures 4 to 6The schematic diagram of the structure of the integrated double-channel solar water guide tube provided in the first embodiment of the present invention is shown together. For the convenience of explanation, this figure only provides the structural part related to the present invention. Among them, the view of the end of the integrated double-channel solar water guide tube is the left view, and the up, down, left, and right directions of the left view are regarded as the up, down, left, and right directions of the following embodiments.

[0048] The integrated double-flow channel solar energy flow guide tube comprises a tube body 1a, wherein a heat conducting tube 2 extending along the length direction thereof is arranged in the tube body 1a, and the tube walls on the upper and lower sides of the heat conducting tube 2 are an integrated molding structure with the tube body 1; the heat conducting tube 2 divides the inner cavity of the tube body 1 into an upper flow channel 31 and a lower flow channel 32, and the inner cavity of the heat conducting tube 2 is a heat conducting chamber 4, and the heat conducting chamber 4 is completely isolated from the upper flow channel 31 and the lower flow channel 32; at least one of the left and right side walls of the heat conducting tube 2 is an outer wall 21 directly connected to the tube body 1a, and a plurality of super heat conducting tube jacks 22 arranged along the length direction thereof are provided on the outer wall 21, which are used to insert the super heat conducting tube for heat transfer, and heat the heat conducting medium in the upper flow channel 31 and the lower flow channel 32; after adopting the above structure, it is convenient to The staff directly integrally molds the tube body 1a and the heat conducting tube 2, and then seals the openings at both ends of the heat conducting tube 2, and then opens the super heat conducting tube jack 22 at the corresponding position on the common side wall of the heat conducting tube 2 and the tube body 1a, eliminating the process of welding the tube sleeve a2, which not only improves the manufacturing efficiency of the integrated double-flow channel solar guide tube and reduces the manufacturing cost, but also realizes the natural isolation between the heat conducting chamber 4 and the upper flow channel 31 and the lower flow channel 32, prevents the heat conducting medium in the upper and lower flow channels from leaking into the heat conducting chamber 4, reduces the maintenance cost, and extends its service life. Since it adopts a straight-through heat conducting chamber 4, it also reduces the circulation resistance of the heat conducting medium, so that the heat conducting medium can be quickly heated up, and the efficiency of heat exchange is improved.

[0049] In this embodiment, the inner cavity of the tube body is separated into an upper flow channel 31 and a lower flow channel 32 by the heat conducting pipe 2, so that the heat conducting medium can flow through the dual channels of the integrated double-channel solar water guide tube, so that the super heat conducting pipe can heat the heat conducting medium in the two channels at the same time, thereby accelerating the heat transfer efficiency; when the two channels are connected by a pipe plug, the heat conducting medium can flow between the two channels, thereby accelerating the flow rate of the heat conducting medium; when the lower ends of the two channels are closed by a pipe seal, the heat conducting medium in the two channels can circulate separately; when the lower ends of the two channels are connected to the external pipeline by a pipe joint, the integrated double-channel solar water guide tube has a pressure-bearing capacity, thereby ensuring the water pressure of the hot water and improving the user experience.

[0050] In this embodiment, the upper and lower tube walls of the heat conducting tube 2 include a main tube wall 23 and a transition tube wall 24, and the two transition tube walls 24 are in an outward-turned structure, together forming a bell-mouth structure that is wide outside and narrow inside, which can facilitate the installation and removal of the superconducting heat conducting tube, and is also beneficial to the extrusion molding of the installation groove 25, so as to prevent the structural change of the main tube wall 23 during the deformation process from affecting the structure of the tube body 1a.

[0051] In this embodiment, if Figures 7 to 9 As shown, a plurality of mounting grooves 25 extending along the width direction of the heat pipe 2 are provided, and the notches of the mounting grooves 25 correspond to the positions of the superconducting heat pipe insertion holes 22, so that the heat conduction area between the superconducting heat pipe and the heat pipe 2 can be increased, thereby improving the efficiency of heat transfer.

[0052] In this embodiment, the installation groove 25 is formed by deforming the main pipe wall 23 through an extrusion molding process, which can improve the molding efficiency of the installation groove 25 and ensure the overall isolation structure of the heat pipe 2.

[0053] In this embodiment, the cross-section of the mounting groove 25 is an arc-shaped, V-shaped or polygonal structure (an arc-shaped structure is shown in the figure), which can effectively increase the heat exchange area between the heat pipe 2 and the superheat pipe. After the heat-conducting medium in the upper flow channel 31 and the lower flow channel 32 is heated, the heat pipe 2 will be deformed toward the superheat pipe, and then closely attached to the superheat pipe, thereby fixing the superheat pipe.

[0054] In this embodiment, the tube body 1a and the heat pipe 2 are integrally formed of aluminum alloy, which can reduce material costs while ensuring heat transfer efficiency, and also facilitate the implementation of the integral molding process, thereby reducing manufacturing costs.

[0055] In this embodiment, the left and right side walls of the heat pipe 2 are both set as the outer wall 21, so that the double-sided superconducting heat pipe insertion of the integrated double-channel solar flow pipe can be realized, which can greatly improve the heat transfer efficiency.

[0056] In this embodiment, at least one outer wall 21 and the tube body 1a are integrally formed, which can facilitate the implementation of the integral molding process of the integral double-channel solar guide tube, reduce the use of materials and installation or welding processes, and reduce manufacturing costs;

[0057] Among them, when one outer wall is integrally formed with the tube body 1a, the other outer wall 21 is fixed to the tube body 1a by welding or installation; of course, the most preferred solution is that both outer walls 21 are integrally formed with the tube body 1a, so that the tube body 1a and the entire heat conduction tube 2 can be directly formed at one time during the molding process, eliminating the installation or welding process of the outer wall 21, greatly improving the manufacturing efficiency of the integrated double-channel solar guide tube and reducing the manufacturing cost.

[0058] Embodiment 2:

[0059] The structure of the integrated double-channel solar flow guide tube provided in this embodiment is basically the same as that of the first embodiment, and the differences are as follows:

[0060] like Fig.10 As shown, one of the left and right side walls of the heat conducting pipe 2 is provided as an outer wall 21 and the other is provided as an inner wall 26. The inner wall 26 is located on the inner side of the pipe body 1a and is integrally connected to the pipe body 1a through a heat conducting plate 27. This allows the integrated double-channel solar flow conducting pipe to be suitable for single-side insertion applications, and can also reduce the use of materials and manufacturing costs.

[0061] In this embodiment, the outer wall 21, the inner wall 26 and the heat conducting plate 27 are all formed integrally with the tube body, so that the tube body 1 and the entire heat conducting tube 2 can be made entirely through an integral molding process, eliminating the installation or welding process of the outer wall 21, greatly improving the manufacturing efficiency of the integrated double-channel solar guide tube and reducing the manufacturing cost.

[0062] In the above embodiment, a heat conducting fin 5 is provided at a position corresponding to the superconducting heat pipe insertion hole 22 on the tube body 1a (for the convenience of description, the heat conducting fin 5 is only Fig.10 As shown in the figure, the heat-conducting fins 5 can directly absorb heat from the vacuum tube and transfer it directly to the inside of the tube body 1a, thereby directly heating the heat-conducting medium in the upper flow channel 31 and the lower flow channel 32, further improving the efficiency of heat transfer.

[0063] In the above embodiment, the main part of the tube body 1a is set to a square structure, and gradually transitions to a circular structure at both ends. This not only facilitates the installation of the two ends of the integrated double-channel solar guide tube with external devices or components to ensure its sealing, but also ensures the total capacity of the upper flow channel 31 and the lower flow channel 32 to ensure the heat transfer efficiency.

[0064] The integrated double-channel solar guide tube provided by the present invention adopts an integrated molding structure, which eliminates the welding process and reduces the manufacturing and maintenance costs. It also adopts a straight-through heat conduction chamber, which increases the heat conduction area, reduces the flow resistance of the heat conduction medium, and improves the efficiency of heat transfer.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated double-channel solar water guide tube, comprising a tube body, characterized in that: The tube body is provided with a heat conducting tube extending along its length direction, and the tube walls on both upper and lower sides of the heat conducting tube are integrally formed with the tube body; The heat conducting pipe divides the inner cavity of the pipe body into an upper flow channel and a lower flow channel, and the inner cavity of the heat conducting pipe is a heat conducting chamber, and the heat conducting chamber is completely isolated from the upper flow channel and the lower flow channel; At least one of the left and right side walls of the heat-conducting pipe is an outer wall directly connected to the pipe body, and the outer wall is provided with a plurality of superconducting heat-conducting pipe insertion holes arranged along the length direction thereof; The upper and lower tube walls of the heat conducting tube include a main tube wall and a transition tube wall, and the two transition tube walls are in an outward-turned structure, and together form a bell-mouth structure that is wide outside and narrow inside; The main body of the tube is a square structure, and gradually transitions into a circular structure at both ends.

2. The integrated dual-channel solar flow guide tube according to claim 1, characterized in that: The main pipe wall is provided with a plurality of mounting grooves extending along the width direction thereof, and the notches of the mounting grooves correspond to the positions of the superconducting heat pipe insertion holes.

3. The integrated double-channel solar flow guide tube according to claim 2, characterized in that: The installation groove is formed by deforming the main pipe wall through an extrusion molding process, and the cross section of the installation groove is an arc-shaped, V-shaped, or polygonal structure.

4. The integrated double-channel solar flow guide tube according to claim 3, characterized in that: The tube body and the heat conducting tube are made of an integrally formed aluminum alloy.

5. The integrated double-channel solar flow guide tube according to any one of claims 1 to 4, characterized in that: The left and right side walls of the heat conducting pipe are both the outer walls.

6. The integrated double-channel solar flow guide tube according to claim 5, characterized in that: At least one of the outer walls and the tube body is an integrally formed structure.

7. The integrated double-channel solar flow guide tube according to any one of claims 1 to 4, characterized in that: Of the left and right side walls of the heat conducting pipe, one is an outer wall and the other is an inner wall; The inner wall is located on the inner side of the tube body and is integrally connected with the tube body through a heat conducting plate.

8. The integrated double-channel solar flow guide tube according to any one of claims 1 to 4, characterized in that: A heat-conducting fin is provided on the tube body at a position corresponding to the superheat-conducting heat pipe insertion hole.

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