Double-wall pipe supporting structure and double-wall pipeline system

Abstract

The utility model relates to the technical field of double-wall pipes, in particular to a double-wall pipe supporting structure and a double-wall pipeline system.The double-wall pipe supporting structure comprises two elastic supporting pieces, the two elastic supporting pieces are oppositely arranged in a spaced mode, and each elastic supporting piece comprises an arc-shaped main body part; the two ends of the main body part are each provided with an arc-shaped elastic part, the two elastic parts tend to be close to each other, and the two elastic parts are symmetrically arranged relative to the main body part; one heat insulation plate is fixedly arranged on one side, deviating from the main body part, of each elastic part; and the two sets of connecting assemblies are arranged between the two elastic supporting pieces and located at the connecting position of the main body part and the elastic part, and the elastic supporting pieces can be hooped to the inner pipe of the double-wall pipe through the connecting assemblies. The utility model can be used in occasions with higher requirements on the coaxiality of the inner pipe and the outer pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of double-walled pipes, in particular to a double-walled pipe supporting structure and a double-walled pipeline system. Background Art

[0002] With the development of new energy technologies, more and more ships use dual fuels (such as traditional fuels and LNG, or traditional fuels and ammonia, etc.) as main engine fuels. For dual-fuel ships, when using clean energy LNG or ammonia fuel, double-walled pipes are required as fuel delivery pipelines. Due to the large temperature difference between the inner and outer pipes of double-walled pipes and the consideration of simplifying the double-walled pipe manufacturing process, elastic support frames are often used to connect the inner and outer pipes of double-walled pipes. The existence of the elastic support frame can compensate for the deformation between the inner and outer pipes without generating additional stress, and it also greatly facilitates the manufacturing of double-walled pipes.

[0003] The existing double-walled pipe support structure has various forms, including S-type and single-point type, among which S-type is the most widely used. The commonly used S-type elastic support is an asymmetric structure, which is unevenly stressed and cannot meet the requirements for the coaxiality of the inner and outer pipes.

[0004] Therefore, a double-wall pipe support structure and a double-wall piping system are needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a double-wall pipe support structure and a double-wall pipe system, which can meet the use of occasions with high requirements on the coaxiality of the inner pipe and the outer pipe.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Double wall pipe support structure, including:

[0008] Two elastic support members, the two elastic support members are arranged relatively and spaced apart, the elastic support member comprises a main body portion in an arc shape, each end of the main body portion is provided with an arc-shaped elastic part, the two elastic parts tend to approach each other, and the two elastic parts are symmetrically arranged about the main body portion;

[0009] A heat insulation board, wherein a heat insulation board is fixedly provided on a side of each elastic part away from the main body;

[0010] Two groups of connection components are provided between the two elastic support members and located at the connection between the main body and the elastic member. The connection components can enable the elastic support member to be clamped on the inner tube of the double-walled tube.

[0011] Furthermore, the connecting assembly includes two mounting rods and at least two connecting screws, the mounting rods are arranged at the connection between the main body and the elastic part along the axial direction of the main body, the first end of the connecting screw passes through the two mounting rods and extends out, and the first end of the connecting screw is threaded with a locking nut.

[0012] Furthermore, the connection between the main body and the elastic part is in an arc shape.

[0013] Furthermore, the mounting rod is cylindrical, and the curvature radius of the connection between the main body and the elastic part is equal to the curvature radius of the mounting rod.

[0014] Furthermore, both ends of the mounting rod have mounting planes, connecting holes are opened on the mounting planes, the connecting screws are passed through the connecting holes, and the ends of the connecting screws are in contact with the mounting planes.

[0015] Furthermore, the heat insulation board is arc-shaped, and the curvature radius of the heat insulation board is equal to the curvature radius of the elastic part.

[0016] Furthermore, a first mounting hole is formed on the heat insulation board, a second mounting hole opposite to the first mounting hole is formed on the elastic part, and fasteners are inserted through the first mounting hole and the second mounting hole.

[0017] Furthermore, the material of the heat insulation board is plastic.

[0018] Furthermore, the main body and the elastic part are an integrated structure.

[0019] A double-walled pipe system comprises a double-walled pipe and the double-walled pipe supporting structure as described above, wherein the double-walled pipe supporting structure is arranged in the double-walled pipe.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a double-walled tube support structure, wherein two elastic support members are arranged at intervals relative to each other, and the elastic support member includes an arc-shaped main body, and an arc-shaped elastic part is respectively provided at both ends of the main body, the two elastic parts tend to approach each other, and the two elastic parts are symmetrically arranged with respect to the main body. A heat insulation plate is fixedly provided on the side of each elastic part away from the main body. A connecting component is arranged between the two elastic support members and located at the connection between the main body and the elastic part, and the connecting component can enable the elastic support member to be clamped on the inner tube of the double-walled tube. Since the elastic parts located at both ends of the main body abut against the inner wall of the outer tube, the two elastic parts are symmetrically arranged, thereby ensuring that the elastic parts are subjected to uniform force, thereby being able to meet the use of occasions with high requirements for the coaxiality of the inner tube and the outer tube.

[0022] The utility model provides a double-wall pipeline system, comprising a double-wall pipe and the double-wall pipe supporting structure as described above, which can meet the use in occasions with high requirements on the coaxiality of the inner pipe and the outer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of a double-walled pipe support structure of the utility model;

[0025] Figure 2 It is a schematic diagram of a double-walled pipe support structure of the utility model in a non-compressed state;

[0026] Figure 3 It is a schematic diagram of a double-walled pipe support structure of the utility model in a compressed state.

[0027] In the figure:

[0028] 1. Elastic support member; 11. Main body; 12. Elastic part; 2. Heat insulation board; 21. Fastener; 3. Connecting assembly; 31. Mounting rod; 311. Mounting plane; 32. Connecting screw; 33. Locking nut; 4. Outer tube; 5. Inner tube. DETAILED DESCRIPTION

[0029] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0030] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0031] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0032] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0033] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0035] In double-wall piping systems, double-wall pipe support structures are usually used to support the inner and outer pipes of double-arm pipes. In order to meet the requirements for the coaxiality of the inner and outer pipes, such as Figure 1-Figure 3As shown, the utility model provides a double-walled pipe support structure. The double-walled pipe support structure includes two elastic support members 1, a heat insulation board 2 and two groups of connection components 3.

[0036] Among them, two elastic support members 1 are arranged at a relative interval, and the elastic support member 1 includes a main body 11 in the shape of an arc, and an arc-shaped elastic part 12 is respectively provided at both ends of the main body 11, and the two elastic parts 12 tend to approach each other, and the two elastic parts 12 are symmetrically arranged about the main body 11. A heat insulation board 2 is fixedly arranged on the side of each elastic part 12 away from the main body 11. The connecting component 3 is arranged between the two elastic support members 1, and the connecting component 3 is located at the connection between the main body 11 and the elastic part 12, and the connecting component 3 can make the elastic support member 1 be clamped on the inner tube 5 of the double-walled tube.

[0037] Since the elastic parts 12 at both ends of the main body 11 abut against the inner wall of the outer tube 4 , the two elastic parts 12 are symmetrically arranged to ensure that the elastic parts 12 are evenly stressed, thereby meeting the use in occasions where the coaxiality requirements of the inner tube 5 and the outer tube 4 are high.

[0038] Furthermore, the connection between the main body 11 and the elastic part 12 is in an arc shape. The main body 11 and the elastic part 12 are transitioned in an arc shape, which can avoid stress concentration and facilitate manufacturing.

[0039] Further, the connection assembly 3 includes two mounting rods 31 and at least two connecting screws 32. The mounting rods 31 are arranged at the connection between the main body 11 and the elastic part 12 along the axial direction of the main body 11. The first end of the connecting screw 32 passes through the two mounting rods 31 and extends out. The first end of the connecting screw 32 is screwed with a locking nut 33. The two mounting rods 31 are locked by the cooperation of the two connecting screws 32 and the locking nut 33, thereby locking the two elastic support members 1, so that the double-walled tube support structure is clamped on the inner tube 5. The above structure is convenient for installation and disassembly.

[0040] Furthermore, the mounting rod 31 is cylindrical, and the curvature radius of the connection between the main body 11 and the elastic part 12 is equal to the curvature radius of the mounting rod 31. Through the above arrangement, it can be ensured that the connection between the main body 11 and the elastic part 12 forms a surface contact with the mounting rod 31, so that when the double-walled tube support structure is fastened on the inner tube 5, it can be ensured that the elastic support member 1 is uniformly stressed.

[0041] Furthermore, both ends of the mounting rod 31 have mounting planes 311, and a connecting hole is provided on the mounting plane 311. The connecting screw 32 is passed through the connecting hole, and the end of the connecting screw 32 is in contact with the mounting plane 311. Through the above arrangement, it is convenient to open the connecting hole, and after the connecting screw 32 is installed, the end of the connecting screw 32 and the locking nut 33 are in contact with the mounting plane 311 to ensure stability after tightening.

[0042] Furthermore, the heat insulation board 2 is arc-shaped, and the curvature radius of the heat insulation board 2 is equal to the curvature radius of the elastic part 12. Through the above arrangement, it can be ensured that the heat insulation board 2 and the elastic part 12 are completely fitted, so that the heat insulation board 2 is easy to install and fix.

[0043] Furthermore, a first mounting hole is provided on the heat insulation board 2, a second mounting hole opposite to the first mounting hole is provided on the elastic part 12, and the fastener 21 is inserted into the first mounting hole and the second mounting hole. In this embodiment, a plurality of first mounting holes are provided at intervals on the heat insulation board 2, a plurality of second mounting holes are provided at intervals on the elastic part 12, and the plurality of first mounting holes correspond to the plurality of second mounting holes. The fastener 21 passes through the first mounting hole and the second mounting hole and cooperates with the connecting nut to fix the heat insulation board 2 on the elastic part 12. In order to prevent the end of the fastener 21 from extending relative to the first mounting hole, thereby scratching the inner wall of the outer tube 4, the first mounting hole is a countersunk hole, and the fastener 21 adopts a countersunk screw. By hiding the end of the fastener 21 in the first mounting hole.

[0044] Furthermore, the material of the heat insulation board 2 is plastic. By providing the heat insulation board 2, the lower temperature of the inner tube 5 can be prevented from being transmitted to the outer tube 4 through the double-wall tube support structure. Moreover, the heat insulation board 2 is made of plastic material, which can avoid scratching the inner wall of the outer tube 4. In this embodiment, the heat insulation board 2 is made of PTFE (polytetrafluoroethylene), which can well play the role of heat insulation and preventing scratches on the outer tube 4.

[0045] Furthermore, the main body 11 and the elastic part 12 are an integrated structure. Specifically, the elastic support member 1 can be manufactured using a sheet metal process. By designing the main body 11 and the elastic part 12 as an integrated structure, it is easy to manufacture while ensuring the connection strength between the main body 11 and the elastic part 12. In addition, the elastic support member 1 can be manufactured using a thinner plate, which reduces the cost of the elastic support member 1 to a certain extent.

[0046] This embodiment also provides a double-walled pipe system, including a double-walled pipe and the above double-walled pipe support structure, the double-walled pipe support structure is arranged in the double-walled pipe, and can meet the use of occasions with high requirements on the coaxiality of the inner pipe 5 and the outer pipe 4.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Double-walled pipe support structure, characterized in that: include: Two elastic support members (1), the two elastic support members (1) are arranged relative to each other at a distance, the elastic support member (1) comprises a main body (11) in the shape of an arc, an arc-shaped elastic part (12) is respectively provided at both ends of the main body (11), the two elastic parts (12) tend to approach each other, and the two elastic parts (12) are symmetrically arranged with respect to the main body (11); A heat insulation board (2), wherein one side of each elastic portion (12) facing away from the main body portion (11) is fixedly provided with the heat insulation board (2); Two groups of connection components (3), wherein the connection components (3) are arranged between the two elastic support members (1) and are located at the connection between the main body (11) and the elastic member (12), and the connection components (3) can enable the elastic support member (1) to be clamped on the inner tube (5) of the double-walled tube.

2. The double-walled pipe support structure according to claim 1, characterized in that: The connecting assembly (3) comprises two mounting rods (31) and at least two connecting screws (32); the mounting rods (31) are arranged at the connection between the main body (11) and the elastic part (12) along the axial direction of the main body (11); the first end of the connecting screw (32) passes through the two mounting rods (31) and protrudes; the first end of the connecting screw (32) is threadedly connected with a locking nut (33).

3. The double-walled pipe support structure according to claim 2, characterized in that: The connection between the main body (11) and the elastic part (12) is in an arc shape.

4. The double-walled pipe support structure according to claim 3, characterized in that: The mounting rod (31) is cylindrical, and the radius of curvature of the connection between the main body (11) and the elastic part (12) is equal to the radius of curvature of the mounting rod (31).

5. The double-walled pipe support structure according to claim 2, characterized in that: Both ends of the mounting rod (31) have mounting planes (311), and a connecting hole is opened on the mounting plane (311). The connecting screw rod (32) is inserted into the connecting hole, and the end of the connecting screw rod (32) is in contact with the mounting plane (311).

6. The double-walled pipe support structure according to any one of claims 1 to 5, characterized in that: The heat insulation board (2) is arc-shaped, and the radius of curvature of the heat insulation board (2) is equal to the radius of curvature of the elastic part (12).

7. The double-walled pipe support structure according to claim 6, characterized in that: The heat insulation board (2) is provided with a first mounting hole, the elastic part (12) is provided with a second mounting hole opposite to the first mounting hole, and the fastener (21) is inserted into the first mounting hole and the second mounting hole.

8. The double-walled pipe support structure according to any one of claims 1 to 5, characterized in that: The material of the heat insulation board (2) is plastic.

9. The double-walled pipe support structure according to any one of claims 1 to 5, characterized in that: The main body (11) and the elastic part (12) are an integrated structure.

10. Double-wall piping system, characterized in that: It comprises a double-walled pipe and a double-walled pipe supporting structure as claimed in any one of claims 1 to 9, wherein the double-walled pipe supporting structure is arranged in the double-walled pipe.

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