Fixing device for foaming of gathering and transportation pipeline

Abstract

The utility model relates to the field of pipeline maintenance, in particular to a fixing device for foaming a gathering and transportation pipeline, which is used in a thermal insulation layer between an inner pipe and an outer pipe of the gathering and transportation pipeline and comprises a clamping ring, the clamping ring is used for clamping the inner pipe of the pipeline, and an anti-skidding layer is arranged on the outer wall of the clamping ring in the circumferential direction. The anti-skid layer is used for abutting against the inner wall of the pipeline outer pipe. The clamping ring is provided with a limiting device, the limiting device moves towards the inner pipe in a reciprocating mode, the clamping ring is further provided with a limiting device, the limiting device vertically moves on the clamping ring in a reciprocating mode, and the limiting device can abut against the inner pipe of the pipeline after being pressed downwards. In this way, an operator can control the limiting device to abut against the inner pipe of the pipeline, the inner pipe of the pipeline and the clamping piece are combined into a whole through abutting, and the situation that in the foaming process, the foaming material generates impact force on the clamping ring, so that the clamping ring displaces, and consequently foaming is uneven is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to a fixing device for foaming in gathering and transportation pipelines. Background Technology

[0002] Gas field gathering and transmission pipelines are critical transportation facilities in the gas field development process, and their operational reliability directly affects the safety and economic benefits of the gas field. To ensure the normal operation of gathering and transmission pipelines in low-temperature environments, a pipe-in-pipe structure is typically used, with polyurethane foam filling the gaps between the pipes for insulation. This design effectively reduces heat loss and improves transportation efficiency. However, as the pipeline's operating time increases, corrosion problems gradually emerge both internally and externally, especially external corrosion, which is mainly concentrated at weld seams and anti-corrosion repair points. These areas are more prone to corrosion defects due to external environmental erosion and the aging of anti-corrosion materials.

[0003] On-site excavation verification showed that most external pipeline defects were caused by the failure of anti-corrosion repairs. This failure typically stems from long-term aging of the repair material, decreased sealing performance, or construction quality issues. Once the anti-corrosion repair fails, moisture, oxygen, and other corrosive media can penetrate the pipeline surface through the repair area, accelerating the corrosion of the metal pipe wall and thus threatening the pipeline's safety and integrity.

[0004] Current technologies for restoring insulation layers typically employ viscoelastic materials for sealing, followed by polyurethane foam foaming. However, viscoelastic sealing suffers from insufficient strength, leading to foam leakage or poor sealing during the foaming process, thus affecting the restoration efficiency of the insulation layer. Utility Model Content

[0005] The purpose of this invention is to address the problem that existing technologies have insufficient strength when using viscoelastic sealants, and that foam leakage is likely to occur when foaming between the inner and outer casings of pipelines. This invention provides a fixing device for foaming in gathering and transportation pipelines.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A fixing device for foaming in a gathering and transportation pipeline is used in the insulation layer between the inner and outer pipes of the gathering and transportation pipeline. It includes a clamping ring for clamping the inner pipe of the pipeline. The outer wall of the clamping ring is provided with an anti-slip layer, which is used to abut against the inner wall of the outer pipe of the pipeline. The clamping ring is provided with a limiting device, which abuts against the outer wall of the inner pipe.

[0008] This utility model relates to a fixing device for foaming in gathering and transportation pipelines. It uses a clamping ring to hold the inner tube of the pipeline, and an anti-slip layer is provided on the outer wall of the clamping ring. This anti-slip layer abuts against the inner wall of the outer shell of the pipeline. By installing the clamping ring onto the pipeline, the operator can seal the gap between the outer shell and the inner tube, ensuring a consistent thickness of the foamed insulation layer and guaranteeing consistent insulation effect and temperature during the subsequent foaming process. The clamping ring also has a limiting device that abuts against the inner tube of the pipeline when pressed down. This allows the operator to control the abutment between the limiting device and the inner tube, forming a unified whole between the inner tube and the clamping device. This prevents the clamping ring from shifting due to the impact of the foaming material during the foaming process, thus avoiding uneven foaming. The limiting device's abutment against the inner tube enhances the limiting effect of the clamping ring and improves the stability of the foaming process.

[0009] As a preferred embodiment of the present invention, the clamping ring includes a first clamping part, the first clamping part being provided with a boss, and the first clamping part being connected to the limiting device through the boss.

[0010] The protrusion on the first clamping part is movably connected to the limiting device, forming additional structural support. During the foaming process, this design enhances the overall stability of the limiting device, preventing loosening or displacement caused by pressure changes or vibrations.

[0011] As a preferred embodiment of this utility model, the boss is provided with a threaded hole in the vertical direction, and the boss is connected to the limiting device through the threaded hole.

[0012] By opening a vertical threaded hole on the boss and connecting the boss to the limiting device through the threaded hole, the connection stability between the boss and the limiting device is ensured, and shaking is avoided, which would cause the limiting device to fail to limit the movement after it comes into contact with the inner pipe of the pipeline.

[0013] As a preferred embodiment of this utility model, the limiting device includes a limiting screw, one end of which is connected to the threaded hole and the other end is connected to a rotating handle.

[0014] The limit screw is connected through a threaded hole to achieve linear displacement adjustment, which can precisely control its contact position with the outer wall of the inner tube. One end of the limit screw is equipped with a rotating handle, which can be manually rotated by the operator to move the screw up and down, making it convenient for the operator to use.

[0015] As a preferred embodiment of this utility model, an elastic pad is provided at the end of the limiting screw away from the rotating handle.

[0016] By setting an elastic pad on the limiting screw, flexible support can be provided when the limiting screw comes into contact with the inner pipe of the pipeline. This effectively reduces the scratches or indentations that may be caused to the pipeline surface by hard contact, thereby extending the service life of the pipeline.

[0017] As a preferred embodiment of this utility model, the elastic pad body is a rubber structural component.

[0018] By setting the elastic pad as a rubber structural component, since rubber structural components are common materials in daily life, this setting facilitates the subsequent replacement of the elastic pad.

[0019] As a preferred embodiment of the present invention, the first clamping part includes a first connecting platform, and a hinge is provided on the first connecting platform; the second clamping part includes a second connecting platform, and the second connecting platform is connected to the first connecting platform through the hinge.

[0020] The first and second connecting platforms are connected by a hinge, allowing the two parts to rotate through the hinge, enabling flexible opening and closing operations and facilitating workpiece clamping or position adjustment.

[0021] As a preferred embodiment of this utility model, the hinge includes a first leaf piece, one side of which is connected to the first connecting platform. The hinge also includes a second leaf piece, one side of which is connected to the second connecting platform. One side of the first leaf piece and one side of the second leaf piece are connected by a pivot.

[0022] The first and second leaf pieces, connected by a pivot, can rotate freely around the pivot, easily opening and closing the clamping part, making operation simple and efficient.

[0023] As a preferred embodiment of the present invention, a first fixing block is provided on the side of the first clamping part away from the hinge member, and a second fixing block is provided on the side of the second clamping part away from the hinge member, wherein the first fixing block and the second fixing block are detachably connected.

[0024] By setting the first fixing block and the second fixing block, the first clamping part and the second clamping part form additional fixing points on the side away from the loose-leaf, which work together with the loose-leaf to provide a more stable clamping effect.

[0025] As a preferred embodiment of this utility model, the first fixing block is provided with a first connecting hole vertically, and the second fixing block is provided with a second connecting hole vertically, and the first connecting hole and the second connecting hole are movably connected by a connector.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0027] 1. This utility model is a fixing device for foaming in gathering and transportation pipelines. It uses a clamping ring to hold the inner pipe of the pipeline, and an anti-slip layer is provided on the outer wall of the clamping ring. This anti-slip layer abuts against the inner wall of the outer shell of the pipeline. In this way, after the operator installs the clamping ring onto the pipeline, the gap between the outer shell and the inner pipe can be sealed, ensuring a consistent thickness of the foamed insulation layer during the subsequent foaming process, thus guaranteeing consistent insulation effect and temperature. The clamping ring also has a limiting device that allows for... The device reciprocates in a direction toward the inner tube, allowing the limiting device to engage with the inner tube after being pressed down. This enables the operator to control the engagement between the limiting device and the inner tube, thus integrating the inner tube and the clamping component into a single unit. This prevents the foaming material from impacting the clamping ring during the foaming process, which could cause displacement and uneven foaming. In this application, the engagement of the limiting device with the inner tube increases the limiting of the clamping ring and improves the stability of the foaming process. Attached Figure Description

[0028] Figure 1 This is a front view structural diagram of the fixing device of this utility model;

[0029] Figure 2 This is a three-dimensional structural diagram of the fixing device of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the first clamping part of this utility model;

[0031] Figure 4 This is a bottom view of the structure of the first clamping part of this utility model;

[0032] Figure 5 This is a top view of the second clamping part of this utility model;

[0033] Figure 6 This is a schematic diagram of the limiting device of this utility model;

[0034] Figure 7 This is a schematic diagram of the hinge part of this utility model;

[0035] Figure 8 This is a utility model Figure 1 Enlarged view of point A.

[0036] Icons: 1-Clamping ring; 11-First clamping part; 111-Boss; 112-Threaded hole; 113-First connecting platform; 12-Second clamping part; 121-Second connecting platform; 13-Anti-slip layer; 2-Limiting device; 21-Limiting screw; 22-Rotating handle; 3-Elastic pad; 4-Hinge; 41-First leaf; 42-Second leaf; 43-Rotating shaft; 5-First fixing block; 51-First connecting hole; 6-Second fixing block; 61-Second connecting hole; 7-Connector. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0038] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationship of the product / equipment / device during its usual use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution. They do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0040] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0041] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0042] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0043] Example 1

[0044] like Figures 1 to 3 The diagram illustrates a fixing device for foaming insulation in a gathering and transportation pipeline. The fixing device is installed within the insulation layer between the inner and outer pipes of the pipeline. The device includes a clamping ring 1 that clamps the inner pipe. The outer wall of the clamping ring 1 is provided with an anti-slip layer 13, which abuts against the inner wall of the outer pipe. This effectively seals the insulation layer of the gathering and transportation pipeline, preventing leakage during subsequent foaming due to inadequate sealing. Furthermore, the high friction of the anti-slip layer 13 provides greater friction after contact with the outer pipe, improving the connection stability between the clamping ring 1 and the pipeline. The clamping ring 1 also includes a limiting device 2, which can reciprocate vertically towards the inner pipe. When the limiting device 2 moves towards the inner pipe, it abuts against the inner pipe.

[0045] In this application, when the operator uses this fixing device, he first pushes the side of the clamping ring 1 away from the boss 111 into the insulation layer of the gathering and transportation pipeline to fix the gathering and transportation pipeline.

[0046] In one or more embodiments, the clamping ring 1 includes a first clamping portion 11, on which a boss 111 is provided. The boss 111 is perpendicular to the first clamping portion 11, and the first clamping portion 11 is connected to the limiting device 2 through the boss 111. The boss 111 on the first clamping portion 11 is movably connected to the limiting device 2 to form additional structural support. During the foaming process, this design can enhance the overall stability of the limiting device 2 and prevent the clamping ring 1 from loosening or shifting due to pressure changes or vibration.

[0047] Furthermore, the boss 111 has a vertically threaded hole 112. The boss 111 is connected to the limiting device 2 through the threaded hole 112. The threaded hole 112 ensures the connection stability between the boss 111 and the limiting device 2, preventing shaking and ensuring that the limiting device 2 can not be stopped after it comes into contact with the inner tube. Figures 2 to 3 As shown.

[0048] In one or more embodiments, the limiting device 2 includes a limiting screw 21, which is connected to the boss 111. The end of the limiting screw 21 away from the inner tube of the pipe is provided with a rotating handle 22. The operator can manually rotate the handle to move the screw up and down, which is convenient for the operator to use.

[0049] Furthermore, an elastic pad 3 is provided at the end of the limiting screw 21 that contacts the inner wall of the pipe. By providing the elastic pad 3 on the limiting screw 21, flexible support can be provided through the elastic pad 3 after the limiting screw 21 abuts against the inner pipe, effectively reducing scratches or indentations that may be caused to the pipe surface by hard contact, thereby extending the service life of the pipe. Figure 6 As shown.

[0050] In one or more embodiments, the first clamping part 11 includes a first connecting end, and the second clamping part 12 includes a second connecting end. The first connecting end and the second connecting end are connected by a hinge 4. By setting the hinge 4, the first clamping part 11 and the second clamping part 12 can be opened and closed, which facilitates the operation of long gathering and transportation pipelines without requiring the clamping ring 1 to be slipped onto the end of the pipeline and moved to the construction position, thus improving construction efficiency. Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown.

[0051] In one or more embodiments, the hinge 4 includes a first leaf 41, one side of which is connected to the first connecting platform 113. The hinge 4 also includes a second leaf 42, one side of which is connected to the second connecting platform 121. One side of the first leaf 41 and one side of the second leaf 42 are connected by a pivot 43. The first leaf 41 and the second leaf 42, connected by the pivot 43, can rotate freely around the pivot 43, easily realizing the opening and closing of the clamping part. The operation is simple and efficient. Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown.

[0052] In one or more embodiments, the first clamping part 11 has a first fixing block 5 on the side away from the hinge member 4, and the first fixing block 5 has a first connecting hole 51. The second clamping part 12 has a second fixing block 6 on the side away from the hinge member 4, and the second fixing block 6 has a second connecting hole 61. The second connecting hole 61 is adapted to the first connecting hole 51 and is detachably connected via a connector 7. Figures 1 to 3 As shown.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing device for foaming in a gathering and transportation pipeline, used within the insulation layer between the inner and outer pipes of the gathering and transportation pipeline, characterized in that, Includes a clamping ring (1), which is used to clamp the inner tube of the pipe. The outer wall of the clamping ring (1) is provided with an anti-slip layer (13), which is used to abut against the inner wall of the outer tube of the pipe. One side of the clamping ring (1) is provided with a limiting device (2), which abuts against the outer wall of the inner tube.

2. The fixing device for foaming in a gathering and transportation pipeline according to claim 1, characterized in that, The clamping ring (1) includes a first clamping part (11) and a second clamping part (12). The first clamping part (11) is provided with a boss (111), and the first clamping part (11) is connected to the limiting device (2) through the boss (111).

3. The fixing device for foaming in a gathering and transportation pipeline according to claim 2, characterized in that, The boss (111) has a threaded hole (112) in the vertical direction, and the boss (111) is connected to the limiting device (2) through the threaded hole (112).

4. A fixing device for foaming in a gathering and transportation pipeline according to claim 3, characterized in that, The limiting device (2) includes a limiting screw (21), one end of which is connected to the threaded hole (112) and the other end is connected to a rotating handle (22).

5. A fixing device for foaming in a gathering and transportation pipeline according to claim 4, characterized in that, An elastic pad (3) is provided at the end of the limiting screw (21) away from the rotating handle (22).

6. A fixing device for foaming in a gathering and transportation pipeline according to claim 5, characterized in that, The elastic pad (3) is a rubber structural component.

7. A fixing device for foaming in a gathering and transportation pipeline according to any one of claims 2-6, characterized in that, The first clamping part (11) includes a first connecting platform (113), on which a hinge (4) is provided. The second clamping part (12) includes a second connecting platform (121), which is connected to the first connecting platform (113) via the hinge (4).

8. A fixing device for foaming in a gathering and transportation pipeline according to claim 7, characterized in that, The hinge (4) includes a first leaf (41), one side of which is connected to the first connecting platform (113). The hinge (4) also includes a second leaf (42), one side of which is connected to the second connecting platform (121). One side of the first leaf (41) and one side of the second leaf (42) are connected by a pivot (43).

9. A fixing device for foaming in a gathering and transportation pipeline according to claim 8, characterized in that, The first clamping part (11) is provided with a first fixing block (5) on the side away from the hinge (4), and the second clamping part (12) is provided with a second fixing block (6) on the side away from the hinge (4). The first fixing block (5) and the second fixing block (6) are detachably connected.

10. A fixing device for foaming in a gathering and transportation pipeline according to claim 9, characterized in that, The first fixing block (5) is provided with a first connecting hole (51) vertically, and the second fixing block (6) is provided with a second connecting hole (61) vertically. The first connecting hole (51) and the second connecting hole (61) are movably connected by a connector (7).

Images