A pipe connection structure and frame

Abstract

This application provides a pipe connection structure and frame. The pipe connection structure includes a first pipe, a second pipe, and a connector. The first pipe defines a first flow path and at least one first mounting hole; the second pipe defines a second flow path and at least one second mounting hole; the connector passes through the first and second mounting holes sequentially, and the connector defines a hollow channel that communicates with the first and second flow paths respectively. By using a connector that passes through the first and second mounting holes sequentially to connect the first and second pipes, thermal stress caused by thermal expansion and contraction at the weld joint of the first and second pipes can be avoided. This ensures that the connection between the first and second pipes remains structurally stable even under high-temperature operating environments, extending the service life of the pipe connection structure.

Description

Technical Field

[0001] This application relates to the field of connection structure technology, and in particular to a pipe connection structure and frame. Background Technology

[0002] In large-scale high-temperature heat treatment equipment, stainless steel is often used as the main structural material for the furnace frame due to its excellent corrosion resistance and high-temperature performance. However, under high-temperature conditions, the yield strength of stainless steel will decrease significantly. At the same time, during the operation of the equipment, temperature differences in different areas will cause uneven thermal expansion of the material. The welds between the pipes in the frame are prone to repeated thermal expansion and contraction due to temperature fluctuations, resulting in thermal stress at the welds. Prolonged thermal fatigue may lead to cracks or failure at the welds. Utility Model Content

[0003] This application provides a pipe connection structure and frame to solve or alleviate one or more technical problems in the prior art.

[0004] As one aspect of the embodiments of this application, this application provides a pipe connection structure, which includes:

[0005] The first pipe has a first flow path defined inside, and at least one first mounting hole communicating with the first flow path is provided on the side wall of the first pipe.

[0006] The second pipe has a second flow path defined inside, and at least one second mounting hole communicating with the second flow path is provided on the side wall of the second pipe.

[0007] The connector has a first mounting hole and a second mounting hole passing through it in sequence. The connector has a hollow channel that is connected to the first flow path and the second flow path respectively.

[0008] In some embodiments, the sidewall of the first pipe defines a first air inlet for air intake and a first air outlet for air exhaust, and a first flow path is connected to the first air inlet and the first air outlet, respectively.

[0009] In some embodiments, the connector includes a hollow bolt, and the first mounting hole and the second mounting hole are threaded holes, with the hollow bolt threadedly connected to the first mounting hole and the second mounting hole respectively.

[0010] In some embodiments, the second conduit includes a square tube and at least two stop blocks, one of which is disposed at an opening at one end of the square tube, and the other of which is disposed at an opening at the other end of the square tube, the stop blocks defining at least one second mounting hole.

[0011] In some embodiments, a portion of at least one first mounting hole is connected to a second mounting hole via a connector, and another portion of at least one first mounting hole is provided with a seal.

[0012] In some embodiments, the first air inlet and the first air outlet are respectively disposed at both ends of the first pipe.

[0013] In some embodiments, a third conduit is further included, which is connected to the second conduit and has a second air inlet and a second air outlet defined thereon.

[0014] In some embodiments, the second air inlet and the second air outlet are respectively disposed at both ends of the third pipe.

[0015] As another aspect of this application, a frame is also provided, which includes a frame body and a pipe connection structure as described in any of the above claims. The frame body includes multiple vertical pipes and multiple horizontal pipes, with the vertical pipes being first pipes and the horizontal pipes being second pipes.

[0016] In some embodiments, the device further includes a radiator, the sidewall of the first pipe defining a first air inlet for air intake and a first air outlet for air exhaust, a first flow path communicating with the first air inlet and the first air outlet respectively, the input end of the radiator communicating with the first air outlet, and the output end of the radiator communicating with the first air inlet.

[0017] In some embodiments, the heat sink is at least one of an air-cooled heat sink, a water-cooled heat sink, or a semiconductor heat sink.

[0018] The embodiments of this application have the following beneficial effects:

[0019] According to the technology of this application, the connection between the first pipe and the second pipe is achieved by sequentially passing a connector through the first mounting hole and the second mounting hole, avoiding the welding connection method used in related technologies. This avoids thermal stress caused by thermal expansion and contraction at the weld joint of the first and second pipes, thereby reducing the risk of cracks or failures due to thermal fatigue. It also ensures that the connection between the first and second pipes remains structurally stable under high-temperature operating environments, extending the service life of the pipe connection structure. Secondly, this application also considers the heat dissipation problem of the pipe connection structure. It connects the first flow path of the first pipe and the second flow path of the second pipe, and utilizes the hollow channel of the connector to allow mutual airflow within the first and second pipes, improving airflow and heat dissipation while preventing excessive temperature differences between the first and second pipes.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0022] Figure 1 This diagram shows a structural schematic of a pipe connection structure according to an embodiment of the present application;

[0023] Figure 2 A cross-sectional view of a pipe connection structure according to an embodiment of this application is shown;

[0024] Figure 3 This diagram shows a structural schematic of a first pipe according to an embodiment of this application;

[0025] Figure 4 This diagram illustrates the structure of a second pipe according to an embodiment of this application.

[0026] Figure 5 This diagram shows a structural schematic of a connector according to an embodiment of this application;

[0027] Figure 6 A schematic diagram of the framework according to an embodiment of this application is shown.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Framework;

[0030] 10. Pipe connection structure;

[0031] 100. First pipe; 110. First flow path; 120. First mounting hole; 130. First air inlet; 140. First air outlet;

[0032] 200, Second pipe; 210, Second flow path; 220, Second mounting hole; 230, Square tube; 240, Stop block;

[0033] 300. Connector; 310. Hollow channel;

[0034] 400, Third pipe; 410, Second air inlet; 420, Second air outlet. Detailed Implementation

[0035] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0036] In large-scale high-temperature heat treatment equipment, stainless steel is often used as the main structural material for the furnace frame due to its excellent corrosion resistance and high-temperature performance. However, under high-temperature conditions, the yield strength of stainless steel will decrease significantly. At the same time, during the operation of the equipment, temperature differences in different areas will cause uneven thermal expansion of the material. The welds between the pipes in the frame are prone to repeated thermal expansion and contraction due to temperature fluctuations, resulting in thermal stress at the welds. Prolonged thermal fatigue may lead to cracks or failure at the welds.

[0037] Figure 1 This diagram shows a schematic representation of the pipe connection structure 10 according to an embodiment of the present application. Figure 2 A cross-sectional view of a pipe connection structure 10 according to an embodiment of this application is shown; Figure 3 This diagram shows a structural schematic of the first pipe 100 according to an embodiment of this application; Figure 4 This diagram shows a structural schematic of the second pipe 200 according to an embodiment of this application; Figure 5 A schematic diagram of the connector 300 according to an embodiment of this application is shown; see also Figures 1 to 5 This application provides a pipe connection structure 10 for use in high-temperature operating environments. The pipe connection structure 10 includes a first pipe 100, a second pipe 200, and a connector 300. The first pipe 100 internally defines a first flow path 110, and its sidewalls define at least one first mounting hole 120 communicating with the first flow path 110. The second pipe 200 internally defines a second flow path 210, and its end faces define at least one second mounting hole 220 communicating with the second flow path 210. The end faces of the second pipe 200 refer to the sidewalls at both ends of the second pipe 200 along its length. The connector 300 passes through the first mounting hole 120 and the second mounting hole 220 sequentially to connect the first pipe 100 and the second pipe 200. The connector 300 defines a hollow channel 310, which communicates with both the first flow path 110 and the second flow path.

[0038] In some examples, the first pipe 100 may be a hollow pipe, so that the hollow space inside the first pipe 100 constitutes a first flow channel, and the hollow space inside the second pipe 200 constitutes a second flow channel.

[0039] For example, the first pipe 100 is a multifaceted prism, such as a rectangular prism, so that the first pipe 100 has four sidewalls and the interior of the first pipe 100 defines a first flow channel.

[0040] For example, the second pipe 200 is a multifaceted prism, such as a rectangular prism, so that the second pipe 200 has four sidewalls and the interior of the second pipe 200 defines a second flow channel.

[0041] According to the embodiments of this application, the pipe connection structure 10 is applied in a high-temperature working environment. In related technologies, the first pipe 100 and the second pipe 200 are connected by welding. However, in a high-temperature environment, the weld between the first pipe 100 and the second pipe 200 is prone to repeated thermal expansion and contraction due to temperature fluctuations, resulting in thermal stress at the weld. Prolonged thermal fatigue may lead to cracks or failure at the weld. Therefore, this application uses a connector 300 that sequentially passes through the first mounting hole 120 and the second mounting hole 220 to connect the first pipe 100 and the second pipe 200. This avoids the welding connection method used in related technologies, preventing thermal stress caused by thermal expansion and contraction at the weld between the first pipe 100 and the second pipe 200, thereby reducing the risk of cracks or failure due to thermal fatigue. This ensures that the connection between the first pipe 100 and the second pipe 200 remains structurally stable in a high-temperature working environment, extending the service life of the pipe connection structure 10. Secondly, this application also considers the heat dissipation problem of the pipe connection structure 10. This application connects the first flow path 110 of the first pipe 100 and the second flow path 210 of the second pipe 200, and uses the hollow channel 310 of the connector 300 to realize the mutual flow of gas in the first pipe 100 and the second pipe 200, thereby improving the air flow of the first pipe 100 and the second pipe 200, improving the heat dissipation effect of the first pipe 100 and the second pipe 200, and avoiding excessive temperature difference between the first pipe 100 and the second pipe 200.

[0042] See Figure 1 and Figure 3In some embodiments, the sidewall of the first pipe 100 defines a first air inlet 130 for air intake and a first air outlet 140 for air exhaust. The first flow path 110 is connected to the first air inlet 130 and the first air outlet 140 respectively. With this configuration, low-temperature gas can enter the first pipe 100 from the first air inlet 130, and high-temperature gas in the first pipe 100 can be discharged from the second pipe 200, thereby realizing gas circulation in the first pipe 100 and the second pipe 200. Through the introduction of low-temperature gas and the discharge of high-temperature gas, an effective gas circulation is formed, which is conducive to the rapid dissipation of heat in the first pipe 100 and the second pipe 200, thereby reducing the temperature of the first pipe 100 and the second pipe 200, improving the heat dissipation performance of the first pipe 100 and the second pipe 200, and ensuring the stable operation of the pipe connection structure 10 in a high-temperature environment. Secondly, since the first pipe 100 and the second pipe 200 of this application are interconnected, this application only needs to provide a first air inlet 130 and a first air outlet 140 on the first pipe 100 to realize the gas flow in the first pipe 100 and the second pipe 200. That is, only the first air inlet 130 and the first air outlet 140 need to be provided on the first pipe 100 to realize the gas flow in the first pipe 100 and the second pipe 200, which is beneficial to simplifying the pipe connection structure 10.

[0043] See Figure 1 , Figure 2 and Figure 5 In some embodiments, the connector 300 includes a hollow bolt, and the first mounting hole 120 and the second mounting hole 220 are threaded holes. The hollow bolt is threaded into the first mounting hole 120 and the second mounting hole 220 respectively, so that a firm mechanical fixation is formed between the first pipe 100 and the second pipe 200. This effectively prevents the hollow bolt from loosening or falling off due to external force or vibration, ensuring the long-term stability and reliability of the pipe connection structure 10. Secondly, since the hollow bolt can realize the connection between the first pipe 100 and the second pipe 200 on the one hand, and realize the gas flow between the first flow channel and the second flow channel on the other hand, the use of hollow bolt can realize the above two functions at the same time without the need for additional separate processing of the connector 300 to meet the above two functions, reducing the manufacturing process of the connector 300.

[0044] In some embodiments, see Figure 2 and Figure 4 The second conduit 200 includes a square tube 230 and at least two stop blocks 240. One of the at least two stop blocks 240 is provided with an opening at one end of the square tube 230, and the other stop block 240 is provided with an opening at the other end of the square tube 230. The stop block 240 defines at least one second mounting hole 220.

[0045] In this embodiment, the pipe connection structure 10 is applied in the frame 1. Therefore, the first pipe 100 and the second pipe 200 are generally connected perpendicularly. When the first pipe 100 and the second pipe 200 are perpendicular, the opening of the square tube 230 is directly opposite the side wall of the first pipe 100. Therefore, in this embodiment, a stop block 240 is provided on the opening of the square tube 230, and a second mounting hole 220 is provided on the stop block 240, so that the first pipe 100 and the second pipe 200 can be connected by connecting the stop block 240 and the first pipe 100 through the connector 300.

[0046] In some examples, the shape of the stop block 240 is adapted to the shape of the opening of the square tube 230 so that the stop block 240 can completely cover the opening of the square tube 230, so that the square tube 230 can only be connected to the first pipe 100 through the hollow channel 310 in the connector 300.

[0047] For example, the stop block 240 can be disposed in the opening of the square tube 230 by welding or snap-fitting. It should be noted that the specific connection method between the square tube 230 and the stop block 240 is not limited in the embodiments of this application.

[0048] In some embodiments, a portion of at least one first mounting hole 120 is connected to a second mounting hole 220 via a connector 300, and another portion of at least one first mounting hole 120 is provided with a seal.

[0049] For example, the first pipe 100 of this application is a rectangular pipe with four side walls, each of which has at least one first mounting hole 120. This configuration allows the first pipe 100 to be connected to the second pipe 200 in all directions. When only one of the first mounting holes 120 on one side wall of the first pipe 100 needs to be connected to the second mounting hole 220 via a connector 300, this embodiment of the application provides sealing elements in the first mounting holes 120 on the other three side walls of the first pipe 100. This prevents external gas from entering the first pipe 100 through the first mounting holes 120 without connectors 300, thereby enhancing the sealing performance of the pipe connection structure 10, preventing gas leakage from the first pipe 100, and ensuring the safety and reliability of the pipe connection structure 10.

[0050] In some examples, the seal can be made of rubber such as silicone rubber, fluororubber, nitrile rubber, and EPDM rubber, plastic such as polytetrafluoroethylene and polyurethane, and metal such as stainless steel and aluminum. It should be noted that the specific material of the seal is not limited in the embodiments of this application, as long as it can seal the first mounting hole 120 in a high-temperature environment.

[0051] It is understood that, in order to improve the sealing performance between the seal and the first mounting hole 120, the shape of the seal in this application is adapted to the shape of the first mounting hole 120 so that the seal can completely seal the first mounting hole 120.

[0052] In some embodiments, see Figure 3 The first air inlet 130 and the first air outlet 140 are respectively located at both ends of the first pipe 100, thereby increasing the flow distance of the gas in the first pipe 100 and the second pipe 200, and realizing the efficient flow of gas in the pipe. Increasing the distance between the first air outlet 140 and the first air inlet 130 reduces the flow resistance and energy loss in the first pipe 100.

[0053] Figure 6 A schematic diagram of the structure of framework 1 according to an embodiment of this application is shown. See also Figure 6 In some embodiments, this application further includes a third pipe 400, which is connected to the second pipe 200, and the third pipe 400 is provided with a second air inlet 410 and a second air outlet 420.

[0054] For example, the third pipe 400 is the pipe with a higher temperature in the frame 1, so a separate air-cooling system needs to be designed to avoid excessive temperature difference between the first pipe 100, the second pipe 200, and the third pipe 400. Based on this, this application separately provides a second air inlet 410 and a second air outlet 420 on the third pipe 400, realizing an independent air-cooling system design for the third pipe 400. This effectively reduces the temperature of the third pipe 400, avoids thermal stress or heat conduction problems caused by excessive temperature difference between the third pipe 400 and the first pipe 100 and the second pipe 200, and helps to extend the service life of the frame 1 using the pipe connection structure 10, further improving the reliability of the frame 1.

[0055] In some embodiments, see Figure 6 The second air inlet 410 and the second air outlet 420 are respectively located at both ends of the third pipe 400, thereby increasing the flow distance of the gas in the third pipe 400 and realizing the efficient flow of the gas in the third pipe 400. Increasing the distance between the second air outlet 420 and the second air inlet 410 reduces the flow resistance and energy loss in the third pipe 400.

[0056] As another aspect of this application, see [link to relevant documentation]. Figure 6 This application also provides a frame 1, which includes a frame body and a pipe connection structure 10 as described in any of the above embodiments. The frame body includes multiple vertical pipes and multiple horizontal pipes, the vertical pipes being first pipes 100 and the horizontal pipes being second pipes 200.

[0057] For example, there are four vertical pipes and four horizontal pipes. The four vertical pipes extend vertically, and the horizontal pipes connect adjacent vertical pipes to form a frame 1 structure. It should be noted that the above is only an exemplary description of frame 1 and does not constitute a limitation on the number of horizontal and vertical pipes.

[0058] In some embodiments, the heat sink is at least one of an air-cooled heat sink, a water-cooled heat sink, or a semiconductor heat sink. This configuration enables the high-temperature gas exiting from the first exhaust port to be water-cooled before entering the first pipe 100 through the first air inlet 130, thereby achieving gas circulation within the first pipe 100. This is beneficial for optimizing thermal management and further reduces the temperature difference between the first pipe 100 at the first air inlet 130 and the first air outlet 140, thereby reducing structural damage to the first pipe 100 caused by thermal stress and enhancing the overall thermal stability and reliability of the frame 1.

[0059] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pipe connection structure, characterized in that, include: A first conduit, the interior of which defines a first flow path, and the sidewall of the first conduit having at least one first mounting hole communicating with the first flow path; The second pipe has a second flow path defined inside, and at least one second mounting hole communicating with the second flow path is provided on the side wall of the second pipe. A connector, wherein the connector passes through the first mounting hole and the second mounting hole in sequence, and the connector defines a hollow channel, the hollow channel being connected to the first flow path and the second flow path respectively.

2. The pipe connection structure according to claim 1, characterized in that, The sidewall of the first pipe is defined with a first air inlet for air intake and a first air outlet for air exhaust, and the first flow path is connected to the first air inlet and the first air outlet respectively.

3. The pipe connection structure according to claim 1, characterized in that, The connector includes a hollow bolt, and the first mounting hole and the second mounting hole are threaded holes. The hollow bolt is threadedly connected to the first mounting hole and the second mounting hole, respectively.

4. The pipe connection structure according to claim 1, characterized in that, The second conduit includes a square tube and at least two stop blocks, one of which is disposed at an opening at one end of the square tube, and the other of which is disposed at an opening at the other end of the square tube, the stop blocks defining at least one second mounting hole.

5. The pipe connection structure according to claim 1, characterized in that, One portion of the at least one first mounting hole is connected to the second mounting hole via the connector, and another portion of the at least one first mounting hole is provided with a seal.

6. The pipe connection structure according to claim 2, characterized in that, The first air inlet and the first air outlet are respectively located at both ends of the first pipe.

7. The pipe connection structure according to claim 1, characterized in that, It also includes a third pipe, which is connected to the second pipe, and the third pipe is provided with a second air inlet and a second air outlet.

8. The pipe connection structure according to claim 7, characterized in that, The second air inlet and the second air outlet are respectively located at both ends of the third pipe.

9. A frame, characterized in that, The system includes a frame body and a pipe connection structure as described in any one of claims 1 to 8. The frame body includes multiple vertical pipes and multiple horizontal pipes, wherein the vertical pipes are the first pipes and the horizontal pipes are the second pipes.

10. The frame according to claim 9, characterized in that, It also includes a radiator, the sidewall of the first pipe is defined with a first air inlet for air intake and a first air outlet for air exhaust, the first flow path is connected to the first air inlet and the first air outlet respectively, the input end of the radiator is connected to the first air outlet, and the output end of the radiator is connected to the first air inlet.

11. The frame according to claim 10, characterized in that, The heat sink is at least one of an air-cooled heat sink, a water-cooled heat sink, or a semiconductor heat sink.

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