Double-wall pipe supporting device and pipeline system

Abstract

The utility model relates to a double-wall pipe supporting device and a pipeline system. The double-wall pipe supporting device comprises at least two elastic supporting bodies, each elastic supporting body comprises an inner arc-shaped part, two outer arc-shaped parts and two joint parts, one end of each inner arc-shaped part is connected with the end of one outer arc-shaped part through one joint part, and the other end of each inner arc-shaped part is connected with the end of the other outer arc-shaped part through the other joint part. The inner arc-shaped part and the outer arc-shaped part are coaxially arranged, and the end part of any elastic supporting body and the end part of the adjacent elastic supporting body are oppositely arranged. The at least two elastic supporting bodies are sequentially connected in the circumferential direction of the double-wall pipe so that the inner arc-shaped parts can be arranged on the periphery of an inner pipe of the double-wall pipe in a surrounding mode, and the outer arc-shaped parts can abut against the inner wall of an outer pipe of the double-wall pipe. The supporting device can be elastically supported between the inner pipe and the outer pipe, the effect of limiting the inner pipe and the outer pipe is achieved, the supporting force of the supporting device is distributed more evenly, and the use safety of the double-wall pipe can be improved.

Description

Technical Field

[0001] This utility model relates to the field of double-walled pipe technology, and in particular to a double-walled pipe support device and pipeline system. Background Technology

[0002] On ships, double-walled pipes are commonly used for transporting liquids or gases, as well as for heat exchange processes. A double-walled pipe typically consists of two pipes: an inner pipe for transporting the fluid, and an outer pipe for maintaining the fluid's temperature or preventing leakage.

[0003] Double-walled pipes on ships are typically made of corrosion-resistant, high-temperature-resistant, and pressure-resistant materials, such as stainless steel, carbon steel, and copper alloys. Currently, the outer and inner pipes of double-walled pipes are usually fixed in place by welded support strips to prevent movement or misalignment during use.

[0004] However, the above support methods still have the following shortcomings:

[0005] The operation of a ship's main engine and auxiliary equipment generates vibrations and impacts, which are transmitted through the hull to the piping system, affecting the stability of the double-walled pipe. Welded support bars cannot effectively absorb the vibrations and impacts caused by the ship's operation on the double-walled pipe, potentially leading to rupture and damage to the inner pipe, rendering the double-walled pipe inoperable. Utility Model Content

[0006] One objective of this invention is to address the shortcomings of existing technologies and provide a double-walled tube support device. To solve the aforementioned technical problems, this invention adopts the following technical solution:

[0007] A double-walled tube support device includes at least two elastic supports, which are arranged circumferentially between the inner and outer tubes of the double-walled tube.

[0008] The elastic support includes an inner arc-shaped portion, two outer arc-shaped portions, and two connecting portions. The inner arc-shaped portion has two opposite ends. One end of the inner arc-shaped portion is connected to the end of an outer arc-shaped portion through a connecting portion, and the other end of the inner arc-shaped portion is connected to the end of another outer arc-shaped portion through another connecting portion. The inner arc-shaped portion and the outer arc-shaped portion of the elastic support are coaxially arranged. The end of the outer arc-shaped portion of any elastic support that faces away from the connecting portion is arranged facing the end of the outer arc-shaped portion of the adjacent elastic support that faces away from the connecting portion.

[0009] At least two elastic supports are connected sequentially along the circumference of the double-walled tube so that each inner arc-shaped part can be attached to the outer circumference of the inner tube of the double-walled tube, and each outer arc-shaped part can abut against the inner wall of the outer tube of the double-walled tube.

[0010] In one embodiment, at least two elastic supports are an integral structure;

[0011] The outer arc-shaped portions of two adjacent elastic supports are integrally connected so that at least two elastic supports can be enclosed to form a closed ring, and the closed ring has an opening between the outer arc-shaped portions of two adjacent elastic supports.

[0012] In one embodiment, two adjacent elastic supports are detachably connected;

[0013] Each of the two adjacent elastic supports has a corresponding connecting hole, and each connecting hole is used to insert a fastener to connect the two adjacent elastic supports.

[0014] In one embodiment, the joint includes a first connecting segment and a second connecting segment, wherein the extension direction of the first connecting segment is not the same as the extension direction of the second connecting segment;

[0015] One end of the first connecting segment is connected to the inner arc-shaped part, the other end of the first connecting segment is connected to one end of the second connecting segment, and the other end of the second connecting segment is connected to the outer arc-shaped part. The first connecting segments of two adjacent elastic supports are arranged in parallel relative to each other, and the connecting holes are opened on the first connecting segment.

[0016] In one embodiment, there are two elastic supports, which are symmetrically arranged on both sides of the inner tube of the double-walled tube.

[0017] The end of the inner arc-shaped part of the elastic support is closer to the center of the inner arc-shaped part of the elastic support than the end of the outer arc-shaped part that connects to the joint, both in the splicing direction and in the direction perpendicular to the splicing direction.

[0018] In one embodiment, the inner arcuate portion, the joint portion, and the outer arcuate portion of the elastic support are an integrated structure.

[0019] In one embodiment, the elastic support has a symmetrical structure.

[0020] In one embodiment, a first arc portion is provided between the inner arc portion and the joint portion, and the first arc portion is used to provide an arc transition connection between the inner arc portion and the joint portion;

[0021] A second arc portion is provided between the joint portion and the outer arc portion, and the second arc portion is used to connect the joint portion and the outer arc portion in an arc transition.

[0022] In one embodiment, the double-walled tube support device includes a wear-resistant plate disposed on the surface of the outer arc portion for contacting the inner wall of the outer tube.

[0023] Another objective of this utility model is to provide a double-walled pipe system, including a double-walled pipe and a double-walled pipe support device as described in any of the above. The double-walled pipe includes an inner pipe and an outer pipe arranged coaxially, and the double-walled pipe support device is disposed between the inner pipe and the outer pipe.

[0024] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0025] In this invention, the double-walled tube support device includes at least two elastic support bodies connected sequentially along the circumference of the double-walled tube. Each elastic support body includes an inner arc-shaped portion and an outer arc-shaped portion arranged coaxially. The inner arc-shaped portion is used to hug the outer circumference of the inner tube of the double-walled tube, and the outer arc-shaped portion is used to abut against the inner wall of the outer tube of the double-walled tube. Thus, each elastic support body can elastically support itself between the inner and outer tubes, playing a role in limiting the inner and outer tubes. Furthermore, each elastic support body can effectively absorb and mitigate the impact of external vibrations and shocks on the inner tube, improving the working stability of the double-walled tube.

[0026] Furthermore, since the two ends of the inner arc-shaped part are connected to the two outer arc-shaped parts through two joints, when each inner arc-shaped part is attached to the outer circumference of the inner tube, the two ends of each inner arc-shaped part can abut against the outer tube through the two outer arc-shaped parts. This allows the two ends of the elastic support to support the inner and outer tubes respectively, which not only increases the support force between the inner and outer tubes, but also helps to ensure the uniformity and balance of the support force between the inner and outer tubes. In this way, the support stability of the double-walled tube can be improved, the safety of the double-walled tube can be enhanced, and the service life of the double-walled tube can be extended. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the use of a double-walled tube support device according to one embodiment.

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of an elastic support in the support device shown.

[0029] Figure 3 This is a schematic diagram for the use of a double-walled tube support device according to another embodiment.

[0030] Figure 4 yes Figure 3 A schematic diagram of the structure of the two integrally connected elastic supports in the support device shown.

[0031] The annotations in the attached figures are explained as follows:

[0032] 10 - Inner tube; 20 - Outer tube;

[0033] 100 - Elastic support;

[0034] 110 - Inner arc-shaped part; 120 - Outer arc-shaped part;

[0035] 130 - Joint; 131 - Connecting hole; 132 - First connecting section; 133 - Second connecting section;

[0036] 140 - First arc portion; 150 - Second arc portion; 160 - Opening;

[0037] 200-Abrasion-resistant steel plate. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0039] In the description of this utility model, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this utility model 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. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications will also change accordingly.

[0040] 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 the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] This utility model provides a double-walled pipe system, including a double-walled pipe and a double-walled pipe support device (hereinafter referred to as the support device). Reference Figure 1 The double-walled tube includes an inner tube 10 and an outer tube 20 arranged coaxially. A support device is disposed between the inner tube 10 and the outer tube 20 to support the inner tube 10 and the outer tube 20.

[0042] The following will describe in detail the specific embodiments of the double-walled tube support device of this utility model with reference to the accompanying drawings.

[0043] See Figure 1As shown, the double-walled tube support device according to an embodiment of the present invention includes at least two elastic supports 100, which are arranged circumferentially between the inner tube 10 and the outer tube 20 of the double-walled tube. Each elastic support 100 includes an inner arc-shaped portion 110, two outer arc-shaped portions 120, and two connecting portions 130. The inner arc-shaped portion 110 has two opposing ends. One end of the inner arc-shaped portion 110 is connected to the end of one outer arc-shaped portion 120 via a connecting portion 130, and the other end of the inner arc-shaped portion 110 is connected to the end of another outer arc-shaped portion 120 via another connecting portion 130.

[0044] The inner arc-shaped portion 110 and the outer arc-shaped portion 120 of the elastic support 100 are coaxially arranged, and the end of the outer arc-shaped portion 120 of any elastic support 100 that is away from the joint portion 130 is arranged facing the end of the outer arc-shaped portion 120 of the adjacent elastic support 100 that is away from the joint portion 130.

[0045] At least two elastic supports 100 are connected sequentially along the circumference of the double-walled tube so that each inner arc-shaped part 110 can be attached to the outer periphery of the inner tube 10 of the double-walled tube, and each outer arc-shaped part 120 can abut against the inner wall of the outer tube 20 of the double-walled tube.

[0046] The double-walled tube support device of this utility model includes at least two elastic support bodies 100 connected sequentially along the circumference of the double-walled tube. Each elastic support body 100 includes an inner arc-shaped portion 110 and an outer arc-shaped portion 120 coaxially arranged. The inner arc-shaped portion 110 is used to hug the outer circumference of the inner tube 10 of the double-walled tube, and the outer arc-shaped portion 120 is used to abut against the inner wall of the outer tube 20 of the double-walled tube. Thus, each elastic support body 100 can elastically support itself between the inner tube 10 and the outer tube 20, thereby limiting the inner tube 10 and the outer tube 20 and ensuring that the coaxiality accuracy of the inner tube 10 and the outer tube 20 meets the requirements. Furthermore, each elastic support body 100 can effectively absorb and mitigate the impact of external vibration and impact on the inner tube 10, improving the working stability of the double-walled tube.

[0047] Furthermore, since the two ends of the inner arc-shaped portion 110 are connected to the two outer arc-shaped portions 120 through two joint portions 130 respectively, when each inner arc-shaped portion 110 is attached to the outer periphery of the inner tube 10, the two ends of each inner arc-shaped portion 110 can abut against the outer tube 20 through the two outer arc-shaped portions 120 respectively. This allows the two ends of the elastic support body 100 to support the inner tube 10 and the outer tube 20 respectively. This not only increases the supporting force between the inner tube 10 and the outer tube 20, but also helps to ensure the uniformity and balance of the supporting force between the inner tube 10 and the outer tube 20. In this way, the support stability of the double-walled tube can be improved, the safety of the double-walled tube can be enhanced, and the service life of the double-walled tube can be extended.

[0048] The elastic support 100 can be made of a high-strength, high-elasticity metal material, such as stainless steel or an alloy. This allows the elastic support 100 to have good structural strength and elastic properties.

[0049] like Figure 2 As shown, the inner arc-shaped portion 110 of the elastic support 100 can be an arc-shaped plate structure. The shape of the inner circumferential surface of the inner arc-shaped portion 110 matches the shape of the outer circumference of the inner tube 10, so that the inner arc-shaped portion 110 can fit well against the outer circumference of the inner tube 10.

[0050] The outer arc-shaped portion 120 of the elastic support 100 can be an arc-shaped plate structure. The shape of the outer peripheral surface of the outer arc-shaped portion 120 matches the shape of the inner peripheral surface of the outer tube 20, so that the outer arc-shaped portion 120 can fit well against the inner peripheral surface of the outer tube 20. Furthermore, the center of the circle on the inner peripheral surface of the inner arc-shaped portion 110 coincides with the center of the circle on the outer peripheral surface of the outer arc-shaped portion 120.

[0051] The joint 130 is used to connect the inner arc-shaped part 110 and the outer arc-shaped part 120. The joint 130 can be an arc-shaped plate structure, a straight plate structure, or a bent plate structure, depending on the actual needs.

[0052] See Figure 2 and Figure 4 In one embodiment, a first arcuate portion 140 is provided between the inner arcuate portion 110 and the joint portion 130. The first arcuate portion 140 is used for an arcuate transition connection between the inner arcuate portion 110 and the joint portion 130. By providing the first arcuate portion 140, an arcuate transition connection between the inner arcuate portion 110 and the joint portion 130 can be achieved, eliminating stress concentration at the connection between the inner arcuate portion 110 and the joint portion 130, and ensuring that the structural strength of the elastic support 100 meets the requirements.

[0053] See Figure 2 and Figure 4 In one embodiment, a second arcuate portion 150 is provided between the joint portion 130 and the outer arcuate portion 120. The second arcuate portion 150 is used for an arcuate transition connection between the joint portion 130 and the outer arcuate portion 120. By providing the second arcuate portion 150, an arcuate transition connection between the joint portion 130 and the outer arcuate portion 120 can be achieved, eliminating stress concentration at the connection between the joint portion 130 and the outer arcuate portion 120, and ensuring that the structural strength of the elastic support 100 meets the requirements.

[0054] Optionally, see Figure 2In some embodiments, the inner arc-shaped portion 110, the joining portion 130, and the outer arc-shaped portion 120 of the elastic support 100 are an integral structure. Specifically, the elastic support 100 can be integrally formed by bending a sheet metal part. This arrangement facilitates the fabrication of the elastic support 100 and ensures the connection strength between the inner arc-shaped portion 110, the joining portion 130, and the outer arc-shaped portion 120. Of course, in other embodiments, the inner arc-shaped portion 110, the joining portion 130, and the outer arc-shaped portion 120 of the elastic support 100 can also be welded together as a single unit.

[0055] It is understood that in the embodiment where the inner arc-shaped portion 110 and the joint portion 130 are connected by an arc-shaped transition through the first arc-shaped portion 140, and the joint portion 130 and the outer arc-shaped portion 120 are connected by an arc-shaped transition through the second arc-shaped portion 150, the inner arc-shaped portion 110, the first arc-shaped portion 140, the joint portion 130, the second arc-shaped portion 150 and the outer arc-shaped portion 120 of the elastic support 100 are an integrated structure.

[0056] like Figure 2 As shown, in some embodiments, the elastic support 100 has a symmetrical structure. Specifically, the elastic support 100 can be symmetrical about a plane of symmetry A. This plane of symmetry A can be a plane passing through the center of the circle containing the inner periphery of the inner arc portion 110 and the center of the inner arc portion 110, and perpendicular to the line connecting the two ends of the inner arc portion 110. By setting the elastic support 100 to a symmetrical structure, modular manufacturing of the elastic support 100 can be facilitated, and the symmetrical and uniform distribution of the supporting force of the elastic support 100 on the inner tube 10 and the outer tube 20 can be ensured.

[0057] See Figure 1 and Figure 3 In some embodiments, there are two elastic supports 100, which are symmetrically arranged on both sides of the inner tube 10 of the double-walled tube. The two elastic supports 100 may be symmetrical about a plane B, which is a plane passing through the center of the inner circumference of the inner arcuate portion 110 of the elastic support 100 and perpendicular to the line connecting the centers of the two elastic supports 100.

[0058] In this embodiment, by symmetrically arranging the two elastic supports 100, the force on each elastic support 100 can be uniform, thereby enabling the two elastic supports 100 to support the inner tube 10 and the outer tube 20 more evenly, ensuring the safety of the double-walled tube.

[0059] In an embodiment of this utility model, the double-walled tube support device includes two symmetrically arranged elastic support bodies 100. However, this application is not limited to this. In other embodiments, the double-walled tube support device may also include three or more elastic support bodies 100, which may be evenly arranged along the circumference of the double-walled tube.

[0060] See Figure 1 and Figure 3 As shown, the end of the inner arc-shaped portion 110 of the elastic support 100 is closer to the center of the inner arc-shaped portion 110 of the elastic support 100 than the end of the outer arc-shaped portion 120 that connects to the joint portion 130, both in the splicing direction and in the direction perpendicular to the splicing direction.

[0061] It should be noted that, in this utility model, the splicing direction specifically refers to the direction in which the two elastic supports 100 are spliced ​​end to end, that is, the direction in which the end of the outer arc-shaped portion 120 of one elastic support 100 facing away from the joint portion 130 is connected to the end of the outer arc-shaped portion 120 of the other elastic support 100 facing away from the joint portion 130. For example, using... Figure 1 If we consider the orientation shown in Figure 3, and the splicing direction is left-right, then the direction perpendicular to the splicing direction is up-down.

[0062] Therefore, in this embodiment, along the left-right direction, the end of the inner arc-shaped portion 110 of the elastic support 100 is positioned closer to the center than the end where the outer arc-shaped portion 120 connects to the joint portion 130. That is, referring to... Figure 3 As shown, along the left-right direction, the distance L1 from the end of the inner arc-shaped portion 110 of the elastic support 100 to the center is less than the distance L2 from the end of the outer arc-shaped portion 120 connected to the joint portion 130 to the center.

[0063] Furthermore, along the vertical direction, the end of the inner arc-shaped portion 110 of the elastic support 100 is positioned closer to the center than the end where the outer arc-shaped portion 120 connects to the joint portion 130. That is, referring to... Figure 3 As shown, along the vertical direction, the distance L3 from the end of the inner arc-shaped portion 110 of the elastic support 100 to the center is less than the distance L4 from the end of the outer arc-shaped portion 120 connected to the joint portion 130 to the center.

[0064] This configuration allows the ends of the outer arc-shaped portion 120 and the joint portion 130 to be located outside the end of the inner arc-shaped portion 110 in both the left-right and up-down directions. This results in a longer length of the outer arc-shaped portion 120, which in turn increases the contact area between the elastic support 100 and the inner wall of the outer tube 20, ensuring the support strength of the elastic support 100 and reducing local stress.

[0065] In this invention, at least two elastic supports 100 are connected sequentially along the circumference of the double-walled tube. The at least two elastic supports 100 may be integrally formed or detachably connected.

[0066] For example, in some embodiments, two adjacent elastic supports 100 are detachably connected. Figure 1 and Figure 2 As shown, taking a double-walled tube support device comprising two elastic supports 100 as an example, the two elastic supports 100 are independent of each other and can be detachably connected using external fasteners. After the two elastic supports 100 are connected to each other, the end of the outer arc-shaped portion 120 of one elastic support 100 facing away from the joint portion 130 is arranged opposite to the end of the outer arc-shaped portion 120 of the other elastic support 100 facing away from the joint portion 130.

[0067] like Figure 1 and Figure 2 As shown, each of the two adjacent elastic supports 100 is provided with a corresponding connecting hole 131. Each connecting hole 131 is used to insert a fastener to connect the two adjacent elastic supports 100. The connecting hole 131 can be formed on the joint portion 130 of the elastic support 100.

[0068] For example, such as Figure 2 As shown, the joint 130 may include a first connecting segment 132 and a second connecting segment 133, wherein the extension direction of the first connecting segment 132 is not the same as the extension direction of the second connecting segment 133. In other words, the first connecting segment 132 and the second connecting segment 133 are arranged at an angle to each other, and this angle cannot be 0° or 180°.

[0069] In this design, one end of the first connecting segment 132 is connected to the inner arc-shaped portion 110, the other end of the first connecting segment 132 is connected to one end of the second connecting segment 133, and the other end of the second connecting segment 133 is connected to the outer arc-shaped portion 120. The first connecting segments 132 of two adjacent elastic supports 100 are arranged relatively parallel to each other, and connecting holes 131 are formed on the first connecting segments 132. Thus, when it is necessary to connect the two elastic supports 100, the two elastic supports 100 can be connected by passing fasteners such as long bolts through the two first connecting holes 131 in sequence.

[0070] It should be noted that, in specific implementation, the degree of elastic deformation of each elastic support 100 can be adjusted by adjusting the preload of the fasteners, so that the elastic support 100 can better fit the inner tube 10 and the outer tube 20, and ensure that the two elastic supports 100 can be reliably held and fixed to the outside of the inner tube 10.

[0071] In this embodiment, the double-walled pipe support device adopts a split structure, which not only simplifies the connection operation and facilitates the installation of the double-walled pipe support device, but also allows for adjustment of the fit between the elastic support 100 and the inner pipe 10 and the outer pipe 20 by adjusting the preload of the connection between two adjacent elastic support bodies 100. This adapts to the reliable support of double-walled pipes of different diameters, ensuring that the double-walled pipe support device can meet the requirements of high coaxiality between the inner pipe 10 and the outer pipe 20.

[0072] See Figure 3 and Figure 4 In other embodiments, at least two elastic supports 100 are integral structures. That is, the double-walled tube support device is an integrally molded structure.

[0073] Specifically, the outer arcuate portions 120 of two adjacent elastic supports 100 are integrally connected, that is, the end of the outer arcuate portion 120 of one elastic support 100 facing away from the joint portion 130 is integrally connected to the end of the outer arcuate portion 120 of the other elastic support 100 facing away from the joint portion 130. This allows at least two elastic supports 100 to form a closed ring.

[0074] like Figure 4 As shown, to facilitate the installation of the double-walled pipe support device between the inner pipe 10 and the outer pipe 20, an opening 160 can be provided between the outer arc-shaped portions 120 of two adjacent elastic support bodies 100. By providing the opening 160 on the closed ring body, not only can the integrated double-walled pipe support device be easily installed between the inner pipe 10 and the outer pipe 20, but the closed ring body also has a certain structural elasticity margin to accommodate the elastic support of double-walled pipes of different diameters.

[0075] In this embodiment, the double-walled tube support device adopts an integrated structure, which relies on its own elasticity to fit and support the inner tube 10 and the outer tube 20. This makes the manufacturing of the support device simpler, lowers the cost, and makes the installation of the support device more convenient. For example, the entire double-walled tube support device can be formed by bending a single sheet metal part.

[0076] See Figure 1 and Figure 3 In some embodiments, the double-walled tube support device includes a wear-resistant plate 200, which is disposed on the surface of the outer arc-shaped portion 120 for abutting against the inner wall of the outer tube 20. The wear-resistant plate 200 can be made of a material with good wear resistance and heat resistance, such as polytetrafluoroethylene (PTFE).

[0077] The wear-resistant plate 200 can have an arc shape to fit between the outer arc portion 120 and the inner wall of the outer tube 20. The wear-resistant plate 200 can be fixedly installed on the outer surface of the outer arc portion 120 in various ways.

[0078] For example, the inner surface of the wear-resistant plate 200 may be provided with an arc-shaped groove extending through both ends, the extension direction of which is consistent with the extension direction of the outer arc-shaped portion 120. The wear-resistant plate 200 is connected to the outer arc-shaped portion 120 by engaging with the outer arc-shaped portion 120 through the arc-shaped groove. In addition, to ensure a reliable connection between the wear-resistant plate 200 and the outer arc-shaped portion 120, buckles may be provided on both sides of the arc-shaped groove. The buckles are used to abut against the inner surface of the outer arc-shaped portion 120, thereby effectively preventing the wear-resistant plate 200 from detaching from the outer arc-shaped portion 120 and achieving a reliable connection between the wear-resistant plate 200 and the outer arc-shaped portion 120.

[0079] Alternatively, in other embodiments, a connecting post can be protruding within the arc-shaped groove of the wear-resistant plate 200. The outer arc-shaped portion 120 can have a through hole corresponding to the connecting post, with the connecting post passing through the through hole and protruding inward from the inner surface of the outer arc-shaped portion 120. The portion of the connecting post protruding from the inner surface of the outer arc-shaped portion 120 can have a pin hole. Using a pin passing through this pin hole can effectively prevent the connecting post from detaching from the through hole on the outer arc-shaped portion 120, thereby effectively preventing the wear-resistant plate 200 from detaching from the outer arc-shaped portion 120.

[0080] In other embodiments, the arc-shaped slot may be omitted. The wear-resistant plate 200 can be inserted into the through hole of the outer arc-shaped portion 120 through a connecting post protruding from its inner surface, and connected to the part of the connecting post protruding from the inner surface of the outer arc-shaped portion 120 by a pin, thereby realizing the connection with the outer arc-shaped portion 120. The specific configuration can be set according to actual needs.

[0081] In this embodiment, a wear-resistant plate 200 is provided on the surface of the outer arc-shaped portion 120 that abuts against the inner wall of the outer tube 20. Since the wear-resistant plate 200 can be made of polytetrafluoroethylene or the like, it has a smooth surface, non-stick properties, and heat resistance. This effectively reduces the relative friction between the elastic support 100 and the outer tube 20, prevents the elastic support 100 from scratching the inner wall of the outer tube 20, and effectively provides heat insulation.

[0082] The double-walled tube support device of this utility model includes at least two elastic support bodies connected sequentially along the circumference of the double-walled tube. Each elastic support body includes an inner arc-shaped part and an outer arc-shaped part arranged coaxially. The inner arc-shaped part is used to hug the outer circumference of the inner tube of the double-walled tube, and the outer arc-shaped part is used to abut against the inner wall of the outer tube of the double-walled tube. Thus, each elastic support body can be elastically supported between the inner tube and the outer tube, playing the role of limiting the inner tube and the outer tube. Moreover, each elastic support body can effectively absorb and mitigate the impact of external vibration and impact on the inner tube, thereby improving the working stability of the double-walled tube.

[0083] Furthermore, since the two ends of the inner arc-shaped part are connected to the two outer arc-shaped parts through two joints, when each inner arc-shaped part is attached to the outer circumference of the inner tube, the two ends of each inner arc-shaped part can abut against the outer tube through the two outer arc-shaped parts. This allows the two ends of the elastic support to support the inner and outer tubes respectively, which not only increases the support force between the inner and outer tubes, but also helps to ensure the uniformity and balance of the support force between the inner and outer tubes. In this way, the support stability of the double-walled tube can be improved, the safety of the double-walled tube can be enhanced, and the service life of the double-walled tube can be extended.

[0084] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0085] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A double-walled tube support device, characterized in that, It includes at least two elastic supports, which are arranged circumferentially between the inner and outer tubes of the double-walled tube. The elastic support includes an inner arc-shaped portion, two outer arc-shaped portions, and two connecting portions. The inner arc-shaped portion has two opposite ends. One end of the inner arc-shaped portion is connected to the end of one of the outer arc-shaped portions through one of the connecting portions. The other end of the inner arc-shaped portion is connected to the end of another outer arc-shaped portion through another connecting portion. The inner arc-shaped portion and the outer arc-shaped portion of the elastic support are coaxially arranged. The end of the outer arc-shaped portion of any elastic support that faces away from the connecting portion is arranged facing the end of the outer arc-shaped portion of the adjacent elastic support that faces away from the connecting portion. The at least two elastic supports are connected sequentially along the circumference of the double-walled tube so that each of the inner arc-shaped portions can be attached to the outer circumference of the inner tube of the double-walled tube, and each of the outer arc-shaped portions can abut against the inner wall of the outer tube of the double-walled tube.

2. The double-walled tube support device according to claim 1, characterized in that, The at least two elastic supports are an integrated structure; The outer arcuate portions of two adjacent elastic supports are integrally connected so that the at least two elastic supports can be enclosed to form a closed ring, and the closed ring has an opening between the outer arcuate portions of two adjacent elastic supports.

3. The double-walled tube support device according to claim 1, characterized in that, The two adjacent elastic supports are detachably connected; Each of the two adjacent elastic supports is provided with a corresponding connecting hole, and each connecting hole is used to insert a fastener to connect the two adjacent elastic supports.

4. The double-walled tube support device according to claim 3, characterized in that, The joint includes a first connecting segment and a second connecting segment, wherein the extension direction of the first connecting segment is not the same as the extension direction of the second connecting segment; One end of the first connecting segment is connected to the inner arc-shaped portion, the other end of the first connecting segment is connected to one end of the second connecting segment, the other end of the second connecting segment is connected to the outer arc-shaped portion, the first connecting segments of two adjacent elastic supports are arranged in parallel relative to each other, and the connecting hole is opened on the first connecting segment.

5. The double-walled tube support device according to claim 1, characterized in that, The number of elastic supports is two, and the two elastic supports are symmetrically arranged on both sides of the inner tube of the double-walled tube. The end of the inner arc-shaped portion of the elastic support is closer to the center of the inner arc-shaped portion of the elastic support than the end of the outer arc-shaped portion that connects to the joint portion, both along the splicing direction and in the direction perpendicular to the splicing direction.

6. The double-walled tube support device according to claim 1, characterized in that, The inner arc-shaped portion, the joint portion, and the outer arc-shaped portion of the elastic support are an integrated structure.

7. The double-walled tube support device according to claim 1, characterized in that, The elastic support has a symmetrical structure.

8. The double-walled tube support device according to claim 1, characterized in that, A first arc portion is provided between the inner arc portion and the joint portion, and the first arc portion is used to connect the inner arc portion and the joint portion in an arc transition. A second arc portion is provided between the joint portion and the outer arc portion, and the second arc portion is used to connect the joint portion and the outer arc portion in an arc transition.

9. The double-walled tube support device according to claim 1, characterized in that, It includes a wear-resistant plate, which is disposed on the surface of the outer arc-shaped portion for abutting against the inner wall of the outer tube.

10. A double-walled pipe system, characterized in that, The invention includes a double-walled tube and a double-walled tube support device as described in any one of claims 1 to 9, wherein the double-walled tube comprises an inner tube and an outer tube arranged coaxially, and the double-walled tube support device is disposed between the inner tube and the outer tube.

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