Jacket J-shaped pipe of offshore booster station and mounting method
By adopting the design of foldable rear-loading sections and fixed components in the J-type pipe of the offshore booster station conduit frame, the difficulty and risk of the J-type pipes during transportation and lifting are solved, and the stable and efficient lifting of the J-type pipes are achieved, reducing construction complexity and cost.
Patent Information
- Application Number
- CN202510332859.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-05-09
AI Technical Summary
The J-type pipe at the offshore booster station is too long and cannot be integrally formed and lifted together with the conduit frame. It is difficult to lift separately and dock, and the lifting risk is high.
A J-type pipe of the conduit frame of the offshore booster station is designed, which adopts a foldable rear-mounted section, hinge, fixing section and fixing assembly. The foldable rear-mounted section is locked by the fixing assembly in a folded state, and remains folded during transportation and lifting. After the fixing is released, the foldable rear-mounted section is flipped to unfold the J-type pipe, which is convenient for lifting and assembly.
Through the foldable design, the difficulty and risks of J-type pipes are solved during transportation and lifting, and the stable and efficient lifting of J-type pipes is achieved, reducing construction complexity and cost.
Smart Images
Figure CN119956750A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of offshore booster station conductor racks, and in particular to an offshore booster station conductor rack J-shaped pipe and an installation method thereof. Background Art
[0002] Due to their geographical advantages, coastal areas are suitable for the layout of offshore wind power, injecting green power into regional energy supply. The jacket structure plays a key role in the construction of offshore wind power and booster stations. The jacket structure has become an important choice for the construction of offshore wind power booster stations due to its excellent stability. It can effectively resist the impact of waves and tides and provide solid support for offshore facilities. The jacket-type foundation structure ensures the safe and stable operation of the upper modules of the booster station in complex marine environments. Its modular design and prefabricated production characteristics have greatly improved construction efficiency and reduced offshore operation time and costs. By completing the prefabrication of the jacket on land and then transporting it to the sea for installation, the uncertainty and risk of offshore construction are reduced. As offshore wind power develops into the deep sea, although it faces challenges such as increased water depth and more complex environment, the jacket structure is also constantly innovating and developing.
[0003] Cables in offshore areas are extremely susceptible to factors such as ocean currents, tides, and ship activities. J-tubes are arranged on the conductor racks. The J-tubes are mainly used to protect the transition section of the cable from the platform to the seabed. Through precise hydrodynamic analysis and simulation, J-tubes that meet actual needs are designed. Their curved shape not only helps to reduce the stress on the cables during laying and operation, but also provides additional protection for the cables to prevent collision and wear from external objects, ensuring that the J-tubes can operate stably for a long time in harsh marine environments, ensuring the safety of the cables, and thus ensuring the reliable operation of the entire offshore wind power system. The J-tubes and the conductor rack foundations work together to push my country's offshore wind power industry to new heights.
[0004] The J-tube of the offshore booster station is too long and cannot be integrally formed and hoisted together with the conductor rack. The J-tubes have to be hoisted separately, which makes docking difficult and the hoisting risk high. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention provides a J-shaped pipe of an offshore booster station conductor rack and an installation method thereof, which solves the problems mentioned in the above background.
[0006] The present invention provides the following technical solution: a J-shaped tube of an offshore booster station conductor rack, comprising: a foldable rear-mounted section, a hinge, a fixed section connected to the conductor rack, and a fixed assembly for locking the foldable rear-mounted section in a folded state during transportation and lifting, the foldable rear-mounted section being connected to one end of the hinge, the fixed section being connected to the other end of the hinge, one end of the fixed assembly being connected to the surface of the conductor rack, and the other end of the fixed assembly being connected to the surface of the foldable rear-mounted section.
[0007] Preferably, the number of the fixing structures is three, one of which is arranged at the top end of the foldable rear-mounted section, and the other two fixing structures are symmetrically arranged at the bottom end of the foldable rear-mounted section.
[0008] Preferably, the fixing structure comprises an I-beam and two connecting plates, wherein the two connecting plates are installed at two ends of the I-beam, one of the connecting plates is welded to the outer wall of the foldable rear-mounted section, and the other connecting plate is welded to the surface of the catheter frame.
[0009] Preferably, two mounting holes are opened on the surface of the I-beam, fixing holes are opened on the surfaces of the two connecting plates, and removable bolts are installed on the inner walls of the fixing holes, one end of the removable bolt passes through the mounting hole and is connected with a gasket and a nut, and the gasket is located between the nut and the I-beam.
[0010] Preferably, flanges are respectively provided at the butt ends of the fixed section and the foldable rear-mounted section, and both ends of the hinge are respectively welded to the surfaces of the two flanges, and the surfaces of the two flanges are provided with a plurality of bolt holes evenly distributed along the circumference.
[0011] Preferably, a plurality of first reinforcing ribs are provided between the flange connected to the fixed section and the fixed section, and a plurality of second reinforcing ribs are provided between the flange connected to the foldable rear-mounted section and the foldable rear-mounted section.
[0012] A method for installing a J-shaped pipe of an offshore booster station conductor rack comprises the following steps:
[0013] Step S1, dismantling the fixed structure: fix one end of the sling to the bell-mouth portion of the foldable rear-mounted section, connect the other end of the sling to the hook of the lifting machine and keep it tensioned, remove the detachable bolts between the I-beam and the connecting plate, and remove the I-beam;
[0014] Step S2, lowering the foldable rear-mounted section: controlling the lifting machine to slowly move and lower the lifting belt, so that the foldable rear-mounted section of the J-shaped tube is turned downward around the hinge until the flange of the fixed section is aligned with the flange of the foldable rear-mounted section;
[0015] Step S3, flange connection: Use fixing bolts to sequentially penetrate the bolt holes on the two flanges to fix the position of the foldable rear-mounted section of the J-shaped tube, thereby completing the connection construction of the foldable rear-mounted section of the J-shaped tube.
[0016] Preferably, in step S1, the order of removing the I-beam is: first remove the detachable bolts at the bell-mouth end close to the foldable rear-mounted section, and then remove the detachable bolts at the flange end close to the foldable rear-mounted section.
[0017] Preferably, in step S2, the sling lowering process is operated in sections, pausing after each lowering height of 10%-15% and adjusting the sling angle to ensure the centering of the flange.
[0018] Preferably, in step S3, when installing the fixing bolts, they are tightened diagonally in a cross-cross sequence.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] 1. The present invention provides a foldable rear-mounted section, a hinge, a fixed section and a fixed assembly. The foldable rear-mounted section of the J-tube is fixed by using the fixed assembly. A connecting plate is respectively welded to the catheter frame and the foldable rear-mounted section and the fixed end of the J-tube. The two sections are then connected and fixed by an I-beam and fixed by using detachable bolts. The J-tube rear-mounted section is fixed to the catheter frame body to ensure that the rear-mounted section maintains a folded posture during transportation and hoisting. After the fixation is released, the foldable rear-mounted section is flipped over to unfold the J-tube, which is convenient for hoisting and convenient for releasing the fixation and assembling the J-tube.
[0021] 2. The present invention sets the flange, and after the foldable rear-mounted section of the J-tube is turned over and lowered, the flanges at both ends of the foldable rear-mounted section and the fixed section of the J-tube are connected, the bolts corresponding to the number of bolt holes are taken out and qualitatively characterized, and are diagonally tightened by the cross-cross method to ensure the installation quality of the bolt connection, which facilitates the completion of the connection construction of the rear-mounted section of the J-tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the structure of the J-tube of the present invention installed on the pipe frame;
[0023] Figure 2 It is a schematic diagram of the structure of the foldable rear-mounted section and the fixed section of the present invention in a folded state;
[0024] Figure 3 It is a schematic diagram of the structure at the hinge position of the present invention;
[0025] Figure 4 It is a structural schematic diagram of the fixed component position of the present invention;
[0026] Figure 5 This is a schematic diagram of the mounting hole structure of the present invention;
[0027] Figure 6 It is a schematic diagram of the fixing hole structure of the present invention;
[0028] Figure 7 It is a flow chart of the present invention.
[0029] In the figure: 1. catheter frame; 2. foldable rear installation section; 3. hinge; 4. fixed section; 5. fixed assembly; 51. I-beam; 52. connecting plate; 53. mounting hole; 6. fixing hole; 7. removable bolt; 8. gasket; 9. nut; 10. flange; 11. bolt hole; 12. first reinforcing rib; 13. second reinforcing rib. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] See also Figure 1-7 A J-shaped pipe of an offshore booster station conductor rack and an installation method thereof, comprising: a foldable rear-mounted section 2, a hinge 3, a fixed section 4 connected to the conductor rack 1, and a fixed assembly 5 for locking the foldable rear-mounted section 2 in a folded state during transportation and hoisting, the foldable rear-mounted section 2 being connected to one end of the hinge 3, the fixed section 4 being connected to the other end of the hinge 3, one end of the fixed assembly 5 being connected to the surface of the conductor rack 1, and the other end of the fixed assembly 5 being connected to the surface of the foldable rear-mounted section 2.
[0032] There are three fixed structures, one of which is arranged at the top end of the foldable rear-mounted section 2 , and the other two fixed structures are symmetrically arranged at the bottom end of the foldable rear-mounted section 2 .
[0033] The fixing structure includes an I-beam 51 and two connecting plates 52. The two connecting plates 52 are installed on the two connecting plates 52 at both ends of the I-beam 51. One of the connecting plates 52 is welded to the outer wall of the foldable rear-mounted section 2, and the other connecting plate 52 is welded to the surface of the catheter frame 1. Two mounting holes 53 are provided on the surface of the I-beam 51. The surfaces of the two connecting plates 52 are both provided with fixing holes 6, and the inner walls of the fixing holes 6 are both installed with removable bolts 7. One end of the removable bolt 7 passes through the mounting hole 53 and is connected with a gasket 8, a nut 9 and the I-beam 51, that is, the gasket 8 is located between the nut 9 and the I-beam 51. When the fixing assembly 5 is removed and the foldable rear-mounted section 2 is lowered, the removable bolt 7 is removed and the gasket 8, the nut 9 and the I-beam 51 are retracted to lower the foldable rear-mounted section 2.
[0034] The butt ends of the fixed section 4 and the foldable rear-mounted section 2 are respectively provided with flanges 10, and the two ends of the hinge 3 are respectively welded to the surfaces of the two flanges 10, and the surfaces of the two flanges 10 are evenly distributed with multiple bolt holes 11 along the circumferential direction. After the flipping and lowering operation of the foldable rear-mounted section 2 of the J-shaped tube is completed, the connection construction of the flanges 10 at both ends of the foldable rear-mounted section 2 and the fixed section 4 of the J-shaped tube is carried out, the bolts corresponding to the number of bolt holes 11 are taken out and qualitatively characterized, and are diagonally tightened by the cross-cross method to ensure the installation quality of the bolt connection, thereby facilitating the completion of the connection construction of the rear-mounted section of the J-shaped tube.
[0035] In a specific embodiment, a plurality of first reinforcing ribs 12 are arranged between the flange 10 connected to the fixed section 4 and the fixed section 4, and the first reinforcing ribs 12 reinforce the connection between the flange 10 and the fixed section 4 to prevent the connection between the flange 10 and the fixed section 4 from being disconnected. A plurality of second reinforcing ribs 13 are arranged between the flange 10 connected to the foldable rear-mounted section 2 and the foldable rear-mounted section 2, and the second reinforcing ribs 13 reinforce the connection between the flange 10 and the foldable rear-mounted section 2 to prevent the connection between the flange 10 and the foldable rear-mounted section 2 from being disconnected.
[0036] A method for installing a J-shaped pipe of an offshore booster station conductor rack comprises the following steps:
[0037] Step S1, dismantling the fixed structure: fix one end of the sling to the bell-mouth portion of the foldable rear-mounted section 2, connect the other end of the sling to the hook of the lifting machine and keep it tight, remove the detachable bolts 7 between the I-beam 51 and the connecting plate 52, and remove the I-beam 51;
[0038] Step S2, lowering the foldable rear-mounted section 2: controlling the lifting machine to slowly move and lower the lifting belt, so that the foldable rear-mounted section 2 of the J-shaped tube is turned downward around the hinge 3 until the flange 10 of the fixed section 4 is aligned with the flange 10 of the foldable rear-mounted section 2;
[0039] Step S3, flange 10 connection: Use fixing bolts to sequentially penetrate the bolt holes 11 on the two flanges 10 to fix the position of the foldable rear-mounted section 2 of the J-shaped tube, thereby completing the connection construction of the foldable rear-mounted section 2 of the J-shaped tube.
[0040] In step S1 , the order of removing the I-beam 51 is: first remove the detachable bolts 7 near the bell mouth end of the foldable rear installation section 2 , and then remove the detachable bolts 7 near the flange 10 end of the foldable rear installation section 2 .
[0041] In step S2 , the sling lowering process is operated in sections, and the sling is paused after each lowering of 10%-15% of the travel height, and the sling angle is adjusted to ensure the centering of the flange 10 .
[0042] In step S3, when installing the fixing bolts, they are tightened diagonally in a cross-cross sequence.
[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A J-shaped pipe for an offshore booster station, characterized in that: include: A foldable rear-mounted section (2), a hinge (3), a fixed section (4) connected to a catheter frame (1), and a fixed component (5) for locking the foldable rear-mounted section (2) in a folded state during transportation and lifting, wherein the foldable rear-mounted section (2) is connected to one end of the hinge (3), the fixed section (4) is connected to the other end of the hinge (3), one end of the fixed component (5) is connected to the surface of the catheter frame (1), and the other end of the fixed component (5) is connected to the surface of the foldable rear-mounted section (2).
2. The J-shaped pipe of an offshore booster station according to claim 1, characterized in that: The number of the fixed structures is three, one of which is arranged at the top end of the foldable rear-mounted section (2), and the other two fixed structures are symmetrically arranged at the bottom end of the foldable rear-mounted section (2).
3. The J-shaped pipe of the offshore booster station according to claim 2, characterized in that: The fixing structure comprises an I-beam (51) and two connecting plates (52), wherein the two connecting plates (52) are mounted on two connecting plates (52) at both ends of the I-beam (51), wherein one connecting plate (52) is welded to the outer wall of the foldable rear-mounted section (2), and the other connecting plate (52) is welded to the surface of the catheter frame (1).
4. The J-shaped pipe of the offshore booster station according to claim 3, characterized in that: The surface of the I-beam (51) is provided with two mounting holes (53), the surfaces of the two connecting plates (52) are provided with fixing holes (6), and the inner walls of the fixing holes (6) are provided with detachable bolts (7), one end of the detachable bolts (7) passes through the mounting holes (53) and is connected with a gasket (8) and a nut (9), and the gasket (8) is located between the nut (9) and the I-beam (51).
5. The J-shaped pipe of the offshore booster station according to claim 1, characterized in that: The butt ends of the fixed section (4) and the foldable rear-mounted section (2) are respectively provided with flanges (10), the two ends of the hinge (3) are respectively welded to the surfaces of the two flanges (10), and the surfaces of the two flanges (10) are both uniformly distributed with a plurality of bolt holes (11) along the circumferential direction.
6. The J-shaped pipe of the offshore booster station according to claim 6, characterized in that: A plurality of first reinforcing ribs (12) are arranged between the flange (10) connected to the fixed section (4) and the fixed section (4), and a plurality of second reinforcing ribs (13) are arranged between the flange (10) connected to the foldable rear section (2) and the foldable rear section (2).
7. A method for installing a J-type pipe of an offshore booster station conductor rack, characterized in that: The following steps are involved: Step S1, dismantling the fixed structure: fix one end of the sling to the bell-mouth portion of the foldable rear section (2), connect the other end of the sling to the hook of the lifting machine and keep it tight, remove the detachable bolts (7) between the I-beam (51) and the connecting plate (52), and remove the I-beam (51); Step S2, lowering the foldable rear-mounted section (2): operating the lifting machine to slowly move and lower the lifting belt, so that the foldable rear-mounted section (2) of the J-shaped tube is turned downward around the hinge (3) until the flange (10) of the fixed section (4) is aligned with the flange (10) of the foldable rear-mounted section (2); Step S3, flange (10) connection: Use fixing bolts to sequentially penetrate the bolt holes (11) on the two flanges (10), fix the position of the foldable rear-mounted section (2) of the J-shaped tube, and complete the connection construction of the foldable rear-mounted section (2) of the J-shaped tube.
8. The method for installing a J-type pipe of an offshore booster station jacket according to claim 7, characterized in that: In the step S1, the order of removing the I-beam (51) is: first remove the detachable bolts (7) at the bell-mouth end close to the foldable rear-mounted section (2), and then remove the detachable bolts (7) at the flange (10) end close to the foldable rear-mounted section (2).
9. The method for installing a J-type pipe of an offshore booster station jacket according to claim 7, characterized in that: In step S2, the sling lowering process is operated in sections, and the sling is paused after each lowering of 10%-15% of the travel height, and the sling angle is adjusted to ensure the centering of the flange (10).
10. The method for installing a J-shaped pipe of an offshore booster station according to claim 7, characterized in that: In step S3, when installing the fixing bolts, they are tightened diagonally in a cross-cross sequence.