Butt joint structure for butt joint of jacket and module
By setting a circumferential bevel and a stress relief block at the top of the jacket, the problem of poor welding quality when the jacket is connected to the module was solved, and the welding quality and joint strength were improved.
Patent Information
- Application Number
- CN202423240435.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the prior art, the welding quality is poor when the jacket is connected to the module, mainly because the bevel at the top of the jacket is under great pressure and the blunt edge is wide, resulting in poor penetration.
A circumferential bevel is made at the top of the guide frame, and multiple stress relief blocks are set on the bevel. The stress relief blocks are integrally formed with the guide, and their upper end faces are higher than the upper end faces of the guide to distribute the force during docking and reduce the width of the blunt edge.
By designing stress relief blocks, the load-bearing capacity of the top of the guide frame is enhanced, deformation of the circumferential bevel is avoided, welding quality and joint strength are improved, and welding penetration is enhanced.
Smart Images

Figure CN223643026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of marine engineering construction and manufacturing, and in particular to a docking structure for connecting jackets and modules. Background Technology
[0002] Currently, in the field of marine engineering construction and manufacturing, jacket structures are widely used in the construction of offshore oil platforms. Depending on their distance from the shore, offshore oil platforms are often fixed in one location for extended periods to facilitate both gas and oil extraction and preliminary processing. The main processing equipment is located on the modules, and the jacket supports these modules. Due to differences in construction methods, techniques, and structures, the jacket and modules are constructed separately and ultimately assembled at sea. The welding quality at the interface affects the final weld quality. Existing technology typically involves a bevel at the top of the jacket; however, this results in significant pressure on the bevel during assembly, and the wide blunt edge leads to poor weld penetration. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a docking structure for connecting the guide frame and the module that can improve the welding quality.
[0004] The technical solution adopted by this utility model is as follows: This utility model includes a docking conduit and a plurality of stress relief blocks. The top end of the docking conduit has a circumferential bevel. The upper end of the bevel and the upper end face of the docking conduit have a blunt edge. The plurality of stress relief blocks are all disposed on the bevel and on the blunt edge. The upper end face of the stress relief block is higher than the upper end face of the docking conduit.
[0005] Furthermore, the stress-relieving block includes a block body, one end of which extends into an extension block located on the blunt edge, the extension width of which is equal to the extension width of the blunt edge.
[0006] Furthermore, the cross-section of the block is triangular.
[0007] Furthermore, the stress relief block and the docking conduit are integrally formed.
[0008] Furthermore, the upper end face of the stress relief block is 2mm to 3mm higher than the upper end face of the docking conduit.
[0009] Furthermore, the number of stress relief blocks is four, and the four stress relief blocks are evenly arranged on the top of the docking guide tube.
[0010] Furthermore, the width of the blunt edge is 8mm.
[0011] Furthermore, the circumferential bevel is a V-shaped bevel.
[0012] Furthermore, the bevel angle of the circumferential bevel is 45 degrees.
[0013] The beneficial effects of this utility model are:
[0014] In contrast to the shortcomings of existing technologies, in this invention, when docking the jacket and the module at sea, multiple stress relief blocks are used to bear the force during docking of the connecting pipes, thereby enhancing the bearing capacity of the top of the connecting pipes, avoiding severe deformation of the circumferential bevel under pressure, and reducing the width of the blunt edge to improve the penetration effect during single-sided welding, thus improving the welding quality and the strength of the joint. This gives this invention the advantage of improving welding quality. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the planar structure of this utility model. Figure 1 ;
[0018] Figure 3 This is a schematic diagram of the planar structure of this utility model. Figure 2 ;
[0019] Figure 4 yes Figure 1 A magnified view of part A.
[0020] The attached figures are labeled as follows:
[0021] 1. Connecting guide tube; 2. Unloading block; 3. Circumferential bevel; 5. Blunt edge; 6. Block; 7. Extension block.
[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0024] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0025] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0026] like Figures 1 to 4 As shown, in this embodiment, the present invention includes a docking conduit 1 and a plurality of stress-relieving blocks 2. The top end of the docking conduit 1 has a circumferentially circumferentially beveled opening 3. The upper end of the circumferentially beveled opening 3 and the upper end face of the docking conduit 1 have a blunt edge 5. The plurality of stress-relieving blocks 2 are all disposed on the circumferentially beveled opening 3 and on the blunt edge 5. The upper end face of the stress-relieving block 2 is higher than the upper end face of the docking conduit 1.
[0027] In contrast to the shortcomings of existing technologies, in this invention, when docking the jacket structure and the module at sea, multiple stress relief blocks 2 are used to bear the force during docking of the connecting pipe 1, thereby enhancing the bearing capacity of the top of the connecting pipe 1, avoiding severe deformation of the circumferential bevel 3 under pressure, and reducing the width of the blunt edge 5 to improve the penetration effect during single-sided welding, thereby improving the welding quality and the strength of the joint. This gives this invention the advantage of improving welding quality.
[0028] In some embodiments, the stress relief block 2 includes a block body 6, one end of which extends an extension block 7 located on the blunt edge 5, the extension width of the extension block 7 being equal to the extension width of the blunt edge 5; the cross-section of the block body 6 is triangular; the stress relief block 2 is integrally formed with the docking conduit 1; the upper end surface of the stress relief block 2 is 2mm to 3mm higher than the upper end surface of the docking conduit 1; there are four stress relief blocks 2, which are evenly arranged on the top end of the docking conduit 1.
[0029] In some embodiments, the width of the blunt edge 5 is 8mm. Specifically, by setting multiple stress relief blocks 2, the width of the blunt edge 5 can be reduced from 10mm to 8mm, thereby reducing the allowance. Therefore, setting the width of the blunt edge 5 to 8mm can ensure the welding penetration effect, reduce the probability of defects, improve welding quality and efficiency, and reduce offshore construction time.
[0030] In some embodiments, the circumferential bevel 3 is a V-shaped bevel; the bevel angle of the circumferential bevel 3 is 45 degrees.
[0031] Specific manufacturing process: The top of the connecting conduit 1 is divided into four equal parts, with the center line extending 30mm to the left and right respectively to form four stress relief blocks 2. The pipe opening of the connecting conduit 1 is beveled at a 45-degree angle except for the stress relief block 2, with a bevel of 52mm on each side.
[0032] In practical applications, the stress relief block 2 bears the main load, reducing the pressure of the block on the circumferential bevel 3, ensuring the bevel shape, and making welding easier. At the same time, the blunt edge 5 is reduced from 10mm to 8mm, resulting in better penetration during the welding process.
[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A docking structure for connecting a guide frame to a module, characterized in that: It includes a docking conduit (1) and multiple stress relief blocks (2). The top end of the docking conduit (1) has a circumferentially circumferentially cut bevel (3). The upper end of the bevel (3) and the upper end face of the docking conduit (1) have a blunt edge (5). The multiple stress relief blocks (2) are all arranged on the bevel (3) and on the blunt edge (5). The upper end face of the stress relief block (2) is higher than the upper end face of the docking conduit (1).
2. The docking structure for connecting a guide frame and a module according to claim 1, characterized in that: The unloading block (2) includes a block (6), one end of which extends an extension block (7) located on the blunt edge (5), the extension width of the extension block (7) being equal to the extension width of the blunt edge (5).
3. The docking structure for connecting a guide frame and a module according to claim 2, characterized in that: The cross-section of the block (6) is triangular.
4. A docking structure for connecting a guide frame and a module according to any one of claims 1-3, characterized in that: The unloading block (2) and the docking conduit (1) are integrally formed.
5. The docking structure for connecting a guide frame and a module according to claim 4, characterized in that: The upper end face of the unloading block (2) is 2mm to 3mm higher than the upper end face of the docking conduit (1).
6. The docking structure for connecting a guide frame and a module according to claim 5, characterized in that: The number of the unloading blocks (2) is four, and the four unloading blocks (2) are evenly arranged on the top of the docking guide tube (1).
7. The docking structure for connecting a guide frame and a module according to claim 1, characterized in that: The width of the blunt edge (5) is 8 mm.
8. The docking structure for connecting a guide frame and a module according to claim 1, characterized in that: The circumferential bevel (3) is a V-shaped bevel.
9. A docking structure for connecting a guide frame and a module according to claim 1 or 8, characterized in that: The bevel angle of the circumferential bevel (3) is 45 degrees.