A reinforced jacketed pipe rack

Abstract

The application relates to the technical field of a jacket platform, and discloses a reinforced jacket platform, which comprises two rows of upper main guide pipes, a barge passing space is left between the two rows of upper main guide pipes, a truss is installed on the side wall of the upper main guide pipe away from the barge passing space, the truss comprises vertical rods, horizontal rods and inclined rods, the vertical rods are arranged in parallel with the upper main guide pipes, one end of the horizontal rod is fixedly connected with the upper main guide pipe, the other end is fixedly connected with the vertical rod, and the inclined rod is installed on the connection position of the vertical rod and the horizontal rod. The application can greatly improve the anti-barge impact capacity of the upper main guide pipe.

Description

Technical Field

[0001] This application relates to the technical field of catheter stents, and in particular to a reinforced catheter stent. Background Technology

[0002] Currently, offshore converter stations have diverse overall structures, mainly including integral and modular types. Generally, the jacket structure of an integral offshore converter station includes an outer sleeve, lower main tube, lower horizontal brace, lower diagonal brace, lower vertical brace, and upper main tube.

[0003] In deep-water conditions, the upper main pipe has a long cantilever, and the wave environment has a significant impact. When the barge transporting the upper module passes through the middle space of the offshore converter station jacket, it may collide with the upper main pipe due to wave forces. Generally, fenders are installed on the upper main pipe to absorb the impact force when the barge docks. However, the force of the fenders still applies to the upper main pipe, which requires the main pipe to be further thickened and weighted, resulting in high costs and increased difficulty in offshore transportation and installation. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a reinforced catheter holder.

[0005] This application provides a reinforced catheter stent, which adopts the following technical solution: A reinforced catheter stent, comprising: Two rows of upper main pipes, with space between the two rows of upper main pipes for barge passage; A truss is installed on the side wall of the upper main pipe away from the barge passage space. The truss includes vertical members, horizontal members, and diagonal members. The vertical members are arranged parallel to the upper main pipe. One end of the horizontal member is fixedly connected to the upper main pipe, and the other end is fixedly connected to the vertical member. The diagonal members are installed at the connection between the vertical member and the horizontal member.

[0006] By adopting the above technical solution, after the reinforced jacket is installed in deep water, the barge transporting the upper module can pass smoothly through the reserved space between the two rows of upper main pipes. When the wave force causes the barge to accidentally hit the upper main pipe, the impact force first acts on the side wall of the upper main pipe. The truss horizontal bar, which is fixedly connected to the main pipe, then bears the stress and transfers it to the vertical bar. The diagonal bar, which is installed at the connection between the vertical bar and the horizontal bar, can effectively enhance the shear resistance of the node and prevent the connection point between the horizontal bar and the vertical bar from deforming or breaking due to excessive force. Finally, the truss transforms the concentrated impact force into a distributed load.

[0007] Optionally, the upper main tube includes multiple straight segments and variable diameter segments, which are staggered. The outer diameter of the straight segments is the same as the outer diameter of the end of the corresponding variable diameter segment. The top of the upper main tube is a straight segment, and the outer diameter of the straight segment in the middle of the upper main tube is larger than the outer diameter of the straight segment at the top of the upper main tube.

[0008] By adopting the above technical solution, the upper main pipe is formed by alternating splicing of straight sections and variable diameter sections. During splicing, the same outer diameter at the ends of the straight sections and variable diameter sections is used to achieve a tight connection, ensuring that there are no gaps at the connection. After installation, the small outer diameter straight section at the top of the upper main pipe is adapted to the smaller stress requirements at the top, while the large outer diameter straight section in the middle mainly bears the larger bending moment generated by the cantilever structure and the impact force of the barge. The variable diameter section smoothly transitions the stress in different outer diameter areas, avoiding local stress concentration.

[0009] Optionally, the intersection of the horizontal bar and the diagonal bar is connected to the straight segment, and the variable diameter segment, the diagonal bar, and the horizontal bar are spliced ​​together to form a triangular structure.

[0010] By adopting the above technical solution, during truss installation, the intersection of the horizontal and diagonal bars is directly fixed to the straight section of the upper main pipe, making the straight section a "vertex" of the triangular structure, and the variable diameter section as the other "side" of the triangle, together with the diagonal and horizontal bars, forming a closed triangle. When the barge hits the main pipe, the impact force borne by the straight section is quickly transmitted to the intersection of the horizontal and diagonal bars. The triangular structure evenly distributes this force to the variable diameter section, diagonal bars, and horizontal bars, and each component works together to bear the load, avoiding excessive stress on a single component.

[0011] Optionally, the diameters of two adjacent diameter-changing sections may be different along the height direction of the upper main pipe.

[0012] By adopting the above technical solution, based on the wave parameters of the sea area where the jacket is installed, the risk of barge collision, and the mechanical analysis of its own cantilever structure, the magnitude of the stress in each region along the height direction of the upper main pipe is determined, and then the diameter change size of adjacent variable diameter sections is designed: in areas with large stress changes, a larger diameter change size is used to achieve rapid adjustment of the outer diameter; in areas with gentle stress changes, a smaller diameter change size is used to ensure a smooth transition of the structure; after installation, each variable diameter section is better matched to the stress at the corresponding height, so that the strength and stress of each part of the main pipe are balanced and adapted.

[0013] Optionally, it also includes a lower cross brace and a lower main tube, the upper main tube and the lower main tube are coaxially and fixedly connected, the end of the lower cross brace is fixedly installed on the lower main tube, a first additional rod is connected between the straight sections of the lower cross brace and the upper main tube, the first additional rod is located in the barge passage space, and the first additional rod, the lower cross brace and the variable diameter section form a triangular structure.

[0014] By adopting the above technical solution, during installation, the lower main pipe is first fixed, and the upper main pipe is coaxially connected and fixed with the lower main pipe, so that the upper load can be directly transferred to the lower part; the lower cross brace is installed on the lower main pipe, and the straight section of the lower cross brace and the upper main pipe is connected by the first additional rod, so that the first additional rod, the lower cross brace and the variable diameter section form a triangle; when the upper main pipe is impacted, part of the load is distributed through the truss, and the other part is transferred to the lower cross brace through the first additional rod, and then transferred to the lower main pipe by the lower cross brace, and finally borne by the lower structure of the entire jacket.

[0015] Optionally, the outer diameter of the variable diameter section near the lower cross brace gradually decreases from bottom to top.

[0016] By adopting the above technical solution, the variable diameter section connects the lower main pipe and the upper straight section. Since the lower part bears the load of the entire upper structure, it needs a larger bearing area, so the lower outer diameter of the variable diameter section is larger.

[0017] Optionally, a second additional rod is connected between the lower main tube and the vertical rod, and the second additional rod, the horizontal rod, and the lower main tube form a triangular structure.

[0018] By adopting the above technical solution, when the truss is subjected to the impact force transmitted by the upper main tube, the stress of the vertical bar is transmitted to the lower main tube through the second additional bar, and the triangular structure evenly distributes the stress to each component.

[0019] Optionally, the vertical rod includes multiple straight segments and variable diameter segments, which are staggered. The outer diameter of the straight segments and the end outer diameter of the variable diameter segments are the same. The horizontal rod is fixedly connected to the straight segments.

[0020] By adopting the above technical solution, the straight segments and variable diameter segments of the vertical rod are staggered in this solution, which allows for the use of large cross-section variable diameter segments in areas with high stress and small cross-section straight segments in areas with low stress; the horizontal rod is connected to the straight segment, and the connection reliability is improved by utilizing the stable characteristics of the straight segment cross-section, thus avoiding stress concentration caused by the connection of the variable diameter segment.

[0021] Optionally, the first additional rod and the second additional rod are arranged in parallel.

[0022] By adopting the above technical solution, when the upper main tube and truss are respectively subjected to load, the first additional rod and the second additional rod transfer the load to the lower structure in the same direction. The force direction is consistent and there is no mutual cancellation or interference. At the same time, the parallel structure makes the force on both sides of the jacket structure balanced.

[0023] In summary, this application includes at least one of the following beneficial effects: 1. Through the coordinated load-bearing of the upper main tube and truss and the design of multiple sets of triangular stabilizing structures, the impact resistance of the upper main tube against barges is greatly improved without the need to thicken or increase the weight of the upper main tube; 2. The middle section of the upper main tube is the core stress area. Increasing the outer diameter of the straight section in the middle can specifically improve the load-bearing capacity of the core area. The variable diameter section conforms to the actual stress distribution, further reducing the weight and cost of the jacket. 3. The upper main pipe adopts a variable diameter section differentiated design (matching the force size as needed), the upper and lower structures are coaxially connected, and the design of the first and second additional rods, etc., to realize the smooth transmission of load along a reasonable path, adapt to the nonlinear force distribution of the jacket structure along the height direction, and improve the overall structural stability and service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0025] Explanation of reference numerals in the attached drawings: 10, upper main tube; 11, straight section; 12, variable diameter section; 20, truss; 21, vertical member; 22, horizontal member; 23, diagonal member; 30, lower main tube; 40, lower horizontal brace; 50, first additional member; 60, second additional member. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail.

[0027] Example 1: Refer to Figure 1 This application discloses a reinforced catheter holder. (See also...) Figure 1 A reinforced jacket includes two rows of upper main pipes 10 and trusses 20. A space for barges to pass is left between the two rows of upper main pipes 10. The trusses 20 are installed on the side wall of the upper main pipes 10 away from the barge passage space. The trusses 20 and the upper main pipes 10 are integrally formed.

[0028] The truss 20 includes vertical members 21, horizontal members 22, and diagonal members 23. The vertical members 21 and the upper main tube 10 are arranged parallel to each other. One end of the horizontal member 22 is fixedly connected to the upper main tube 10, and the other end of the horizontal member 22 is fixedly connected to the vertical member 21. Multiple horizontal members 22 are installed between the vertical member 21 and the upper main tube 10. A diagonal member 23 is installed between two adjacent horizontal members 22, and the end of the diagonal member 23 is installed at the connection between the vertical member 21 and the horizontal member 22. When a barge passes by and generates an impact force on the upper main tube 10 or when the upper main tube 10 is subjected to wave force, the truss 20 and the upper main tube 10 jointly bear the load.

[0029] Example 2: Refer to Figure 2 The upper main pipe 10 includes multiple straight segments 11 and variable diameter segments 12, which are staggered. The outer diameter of the straight segments 11 and the outer diameter of the corresponding variable diameter segments 12 are the same. The outer diameters and lengths of adjacent straight segments 11 are different. The top of the upper main pipe 10 is a straight segment 11. The outer diameter of the straight segments 11 in the middle of the upper main pipe 10 is larger than that of the straight segments 11 at the top of the upper main pipe 10. The maximum outer diameter of the variable diameter segments 12 is larger than that of the uppermost straight segment 11. The lower end of the upper block is inserted and fixed to the straight segments 11 at the top of the upper main pipe 10. When machining the upper main pipe 10, it is machined according to the force distribution in the height direction of the upper main pipe 10. The large outer diameter straight segments 11 in the middle mainly bear the large bending moment generated by the cantilever structure and the impact force of the barge.

[0030] Reference Figure 2 The intersection of the horizontal bar 22 and the diagonal bar 23 connects to the straight section 11. The variable diameter section 12, the diagonal bar 23, and the horizontal bar 22 are spliced ​​together to form a triangular structure. The large cross-sectional area of ​​the variable diameter section 12 corresponds to the triangle with greater stress, allowing the load to be transferred to the variable diameter section 12 through the triangular structure, matching the bearing capacity of the variable diameter section 12.

[0031] The outer diameters of two adjacent straight segments 11 are different, so the areas of the corresponding triangular structures are different. Triangular structures with different areas are set along the height direction of the upper main pipe 10 to adapt to the stress requirements at different heights. This allows the area with greater stress to correspond to a larger triangle with a stronger load-bearing capacity, while the area with less stress corresponds to a smaller triangle, thus avoiding material waste caused by uniform structural dimensions.

[0032] A reinforced jacket structure also includes a lower main tube 30 and a lower cross brace 40, which are coaxially fixedly welded to the upper main tube 10. A first auxiliary rod 50 connects the straight section 11 of the lower cross brace 40 and the upper main tube 10. The first auxiliary rod 50 is located within the barge passage space, and when the barge passes between two rows of upper main tubes 10, the first auxiliary rod 50 is located below the barge. There is a reducing section 12 between the straight section 11 of the main tube and the lower cross brace 40, and the outer diameter of the reducing section 12 gradually increases from bottom to top. The area near the lower cross brace 40 needs to transfer the upper load, and the large cross section can improve the load-bearing capacity and avoid load concentration at the lower connection.

[0033] A second auxiliary rod 60 connects the lower main tube 30 and the vertical rod 21. The second auxiliary rod 60, the horizontal rod 22, and the lower main tube 30 form a triangular structure. The first auxiliary rod 50 and the second auxiliary rod 60 are arranged in parallel. The load of the truss 20 is transferred to the second auxiliary rod 60 through the vertical rod 21, and then distributed to the lower main tube 30 through the triangular structure, thereby improving the stability of the overall structure.

[0034] The implementation principle of a reinforced duct stent in Embodiment 2 of this application is as follows: For deep-water environments, two rows of upper main pipes 10 are set up to reserve space for barge passage. A truss 20 composed of vertical rods 21, horizontal rods 22 and diagonal rods 23 is configured on the outside of the upper main pipes 10 to construct the basic load-bearing system. The upper main pipes 10 adopt a structure with straight segments 11 and variable diameter segments 12 distributed alternately. The straight segment 11 with a large outer diameter in the middle strengthens the core stress area, and the variable diameter segment 12 achieves a smooth stress transition. The differentiated design of adjacent variable diameter segments 12 is adapted to nonlinear forces along the height direction. Combining the stability advantages of the triangular structure, the variable diameter segment 12 and the truss 20 members, the first additional rod 50 and the lower horizontal brace 40 and the variable diameter segment 12, the second additional rod 60 and the horizontal rod 22 and the lower main pipe 30 are respectively enclosed in triangles to form a multi-dimensional stable load transfer path.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reinforced catheter stent, characterized in that, include: Two rows of upper main pipes (10), with space between the two rows of upper main pipes (10) for barge passage; A truss (20) is installed on the side wall of the upper main pipe (10) away from the barge passage space. The truss (20) includes a vertical rod (21), a horizontal rod (22) and a diagonal rod (23). The vertical rod (21) is arranged parallel to the upper main pipe (10). One end of the horizontal rod (22) is fixedly connected to the upper main pipe (10) and the other end is fixedly connected to the vertical rod (21). The diagonal rod (23) is installed at the connection between the vertical rod (21) and the horizontal rod (22).

2. The reinforced catheter stent according to claim 1, characterized in that, The upper main pipe (10) includes multiple straight segments (11) and variable diameter segments (12). The straight segments (11) and the variable diameter segments (12) are staggered. The outer diameter of the straight segment (11) and the outer diameter of the end of the corresponding variable diameter segment (12) are the same. The top of the upper main pipe (10) is a straight segment (11), and the outer diameter of the straight segment (11) in the middle of the upper main pipe (10) is larger than the outer diameter of the straight segment (11) at the top of the upper main pipe (10).

3. A reinforced catheter stent according to claim 2, characterized in that, The intersection of the horizontal bar (22) and the diagonal bar (23) is connected to the straight segment (11), and the variable diameter segment (12), the diagonal bar (23) and the horizontal bar (22) are spliced ​​together to form a triangular structure.

4. A reinforced catheter stent according to claim 3, characterized in that, Along the height direction of the upper main pipe (10), the diameter of two adjacent variable diameter sections (12) is different.

5. A reinforced catheter stent according to claim 4, characterized in that, It also includes a lower cross brace (40) and a lower main tube (30). The upper main tube (10) and the lower main tube (30) are coaxially fixedly connected. The end of the lower cross brace (40) is fixedly installed on the lower main tube (30). A first additional rod (50) is connected between the straight section (11) of the lower cross brace (40) and the upper main tube (10). The first additional rod (50) is located in the barge passage space. The first additional rod (50), the lower cross brace (40) and the variable diameter section (12) form a triangular structure.

6. A reinforced catheter stent according to claim 5, characterized in that, The outer diameter of the variable diameter section (12) near the lower cross brace (40) gradually decreases from bottom to top.

7. A reinforced catheter stent according to claim 5, characterized in that, A second auxiliary rod (60) is connected between the lower main tube (30) and the vertical rod (21), and the second auxiliary rod (60), the horizontal rod (22), and the lower main tube (30) form a triangular structure.

8. A reinforced catheter stent according to claim 7, characterized in that, The first additional rod (50) and the second additional rod (60) are arranged in parallel.

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