An assembled offshore substation

Abstract

The present application relates to the technical field of offshore booster stations, and discloses an assembled offshore booster station, which includes a jacket, an upper module, and a submarine cable protection mechanism. The submarine cable protection mechanism is installed between the deck and the submarine cable protection pipe. The submarine cable protection mechanism includes a first outer cylinder and a first sliding cylinder. The first outer cylinder is fixedly installed on the submarine cable protection pipe. The first sliding cylinder is connected with a slider. A sliding groove is formed on the outer wall of the first outer cylinder, and the slider slides up and down in the sliding groove. The submarine cable protection mechanism further includes a second outer cylinder and a second sliding cylinder. The second outer cylinder is fixedly installed on the deck, and one end of the second sliding cylinder extends out of the second outer cylinder. When the column is installed on the main support column, the second sliding cylinder is inserted into the first outer cylinder, the upper end of the first sliding cylinder abuts against the lower end of the second sliding cylinder, and a fixing component is installed between the first outer cylinder and the first sliding cylinder. The present application enables the submarine cable protection mechanism to be installed more simply without the need for separate hoisting thereof.

Description

Technical Field

[0001] This application relates to the technical field of offshore booster stations, and in particular, to an assembled offshore booster station. Background Art

[0002] An offshore booster station is a general term for a platform built on the sea, which installs equipment such as high-voltage AC transformation and high-voltage DC conversion, as well as related living facilities.

[0003] Refer to Figure 1 , the offshore booster station includes a jacket 1 and an upper module 2. The jacket 1 includes multiple main support columns 11, and diagonal support rods are connected between adjacent two main support columns 11. A plurality of submarine cable protection pipes 12 are also installed on the jacket 1. The upper module 2 includes a deck 21 and each module installed on the deck 21. Columns 22 are installed on the lower surface of the deck 21, and the columns 22 correspond to the main support columns 11 one by one. When installing the offshore booster station, first assemble each component of the jacket 1, and then assemble the upper module 2. Transport the jacket 1 and the upper module 2 to the sea. First, fixedly install the jacket 1 on the sea, lift the upper module 2 and assemble it on the jacket 1. The column 22 is inserted into the hollow part at the upper end of the main support column 11, and a gap for injecting high-strength grouting material is left between the column 22 and the main support column 11, so that the jacket 1 and the upper module 2 are fixedly assembled together.

[0004] After the jacket 1 and the upper module 2 are installed, when the submarine cable passes through the submarine cable protection pipe 12 from bottom to top and enters the upper module 2, the submarine cable between the upper end of the submarine cable protection pipe 12 and the deck 21 is exposed outside. In the marine environment, the exposed submarine cable may be damaged. Commonly, two pairs of half-spliced steel pipes are used to wrap the submarine cable to protect the submarine cable. The length of the steel pipe is about 2-3 meters. The process of installing the steel pipe is mainly to first hoist the steel pipe, and then fixedly install the two ends of the steel pipe between the guide frame 1 and the deck 21 respectively.

[0005] In view of the above related technologies, due to the large number of submarine cables and the limited installation space of the steel pipe caused by the small distance between some submarine cable protection pipes 12, the construction difficulty is large, and there may even be a situation where construction cannot be carried out. Summary of the Invention

[0006] In order to shorten the entire construction period of the offshore booster station, this application provides an assembled offshore booster station.

[0007] This application provides an assembled offshore booster station, adopting the following technical solutions:

[0008] An assembled offshore substation, comprising a jacket, an upper module and at least one submarine cable protection mechanism. The jacket includes a plurality of main support columns and at least one submarine cable protection pipe. The upper module includes a deck and columns. The submarine cable protection mechanism is installed between the deck and the submarine cable protection pipe, and each submarine cable protection mechanism corresponds to each submarine cable protection pipe one by one;

[0009] The submarine cable protection mechanism includes a first outer cylinder and a first sliding cylinder slidably installed up and down inside the first outer cylinder. The first outer cylinder is fixedly installed at one end of the submarine cable protection pipe close to the upper module. The first sliding cylinder is connected with a slider. A chute is opened on the outer wall of the first outer cylinder, and the slider slides up and down in the chute;

[0010] The submarine cable protection mechanism further includes a second outer cylinder and a second sliding cylinder slidably installed up and down inside the second outer cylinder. The second outer cylinder is fixedly installed on the surface of the deck. One end of the second sliding cylinder away from the deck can extend out of the second outer cylinder under the action of gravity;

[0011] When the column is installed on the main support column, the second sliding cylinder is inserted into the first outer cylinder. A fixing component for fixing the first sliding cylinder is installed between the first outer cylinder and the first sliding cylinder. When the first sliding cylinder and the second sliding cylinder are in mutual contact, the first sliding cylinder is fixed by the fixing component.

[0012] By adopting the above technical solutions, when installing the jacket and the upper module on land, the first outer cylinder is fixedly installed on the jacket. According to the distribution of the submarine cable protection pipes on the jacket, the position of the second outer cylinder on the deck is determined in advance, and then the second outer cylinder is fixedly installed on the deck; when assembling the offshore substation at sea, first install the installed jacket at sea, hoist the upper module and move it downward to assemble with the jacket, so that the column is inserted into the main support column;

[0013] During the process of the vertical column gradually approaching the main support column, the second sliding cylinder gradually enters the first outer cylinder. When the vertical column is installed on the main support column, the second outer cylinder is located above the first outer cylinder. Manually or through external equipment, the slider is driven to slide upward to make the first sliding cylinder and the second sliding cylinder cooperate, and then the first sliding cylinder is fixed to the first outer cylinder with a fixing component. When installing the submarine cable, the submarine cable moves upward from the lower end of the submarine cable protection pipe. The first outer cylinder, the second outer cylinder, the first sliding cylinder, and the second sliding cylinder can protect the submarine cable exposed between the jacket and the deck. When the upper module and the jacket are assembled, the first outer cylinders and the second outer cylinders of multiple submarine cable protection mechanisms are also being assembled. After the offshore substation is assembled, the submarine cable passes through the first outer cylinder and the second outer cylinder from bottom to top. As long as the first sliding cylinder and the second sliding cylinder are slid to abut against each other and then the first sliding cylinder is fixed, the submarine cable protection mechanism has little requirement for the installation space on the periphery during the installation process. As long as the slider and the fixing component can be operated normally, and there is no need to hoist it separately. Therefore, compared with the prior art, the installation process is simpler.

[0014] Optionally, the fixing component includes a first fixing rod and a second fixing rod. The first fixing rod is fixedly installed in the chute, and the second fixing rod is rotatably installed in the first sliding cylinder. The second fixing rod is located below the slider.

[0015] By adopting the above technical solution, after the first sliding cylinder slides upward and cooperates with the second sliding cylinder to wrap the submarine cable, the second fixing rod rotates to be fixedly connected with the first fixing rod. No matter how far the first sliding cylinder slides upward, the second fixing rod can be fixedly connected with the first fixing rod when it turns into the chute. The fixing method of the first fixing rod and the second fixing rod can be welding fixation.

[0016] Optionally, the first fixing rod penetrates through the slider.

[0017] By adopting the above technical solution, when the slider slides in the chute, the first fixing rod plays a further limiting role on the first sliding cylinder, and the first sliding cylinder can only move up and down along the axial direction of the first outer cylinder.

[0018] Optionally, the first fixing rod is provided with a receiving groove for the second fixing rod to turn into. A limiting rod is penetrated in the receiving groove, and a limiting hole for the limiting rod to be inserted into is provided on the second fixing rod.

[0019] By adopting the above technical solution, after the first sliding cylinder slides upward and cooperates with the second sliding cylinder to wrap the submarine cable, when the second fixing rod is turned into the receiving groove, the limiting rod slides upward and is inserted into the limiting hole, and then the limiting rod is fixed to the first fixing rod. The limiting rod can support the first fixing rod, and the first sliding cylinder cannot move up and down. The first sliding cylinder is fixed to the first outer cylinder.

[0020] Optionally, the fixing component includes a fixing rod and a fixing block. The fixing block is slidably mounted on the bottom wall of the chute, and one side of the fixing block close to the slider is an inclined surface. The fixing rod is embedded on the outer wall of the first sliding cylinder, below the slider, and includes a plurality of rotating rods spliced in sequence. The adjacent two rotating rods are rotatably connected between the adjacent two rotating rods, and a fixing member is detachably installed between the rotating rod and the first sliding cylinder.

[0021] By adopting the above technical solution, after the first sliding cylinder slides upward and cooperates with the second sliding cylinder to wrap the submarine cable, part of the fixing rod is exposed outside through the chute. Rotate the exposed rotating rod to make the rotating rod turn into the chute. If the first sliding cylinder slides upward more, the number of rotating rods turned into the chute is relatively large. Rotate the rotating rod closest to the first sliding cylinder among the rotating rods turned into the chute to a horizontal state, and continue to rotate the remaining rotating rods downward so that the remaining rotating rods are all in a vertical state. Then use the fixing member to fix the rotating rods so that the adjacent rotating rods cannot rotate continuously. Then slide the fixing block so that the rotating rods in the chute in the vertical state abut against the inclined surface. The fixing block supports the entire first sliding cylinder, and the first sliding cylinder cannot move downward because of the fixing block.

[0022] Optionally, the fixing member is a bolt, and the bolt is inserted into the adjacent two rotating rods.

[0023] By adopting the above technical solution, the two rotating rods can rotate relative to each other only when the bolt is pulled out of the two rotating rods.

[0024] Optionally, part of the first outer cylinder is connected with a positioning rod. One end of the positioning rod is located above the main support column, and the column forms a sliding abutting relationship with the positioning rod.

[0025] By adopting the above technical solution, when the column moves downward close to the main support column, the column first forms a sliding abutting relationship with the positioning rod. When the column enters the main support column along the positioning rod, the installation position of the column on the main support column is determined. Therefore, the positioning rod can guide the column to be centered and installed in the main support column. When pouring high-strength grouting material in the main support column to fix the column and the main support column, the thickness of the high-strength grouting material around the column is basically equal, which improves the firmness after the column and the main support column are fixedly connected.

[0026] Optionally, the column is fixedly connected with a positioning strip, and a through groove for the positioning strip to pass through is formed on the positioning rod.

[0027] By adopting the above technical solution, the cooperation of the positioning strip and the through groove can further limit the column, so that the column can only slide up and down along the positioning rod.

[0028] Optionally, the positioning rod is fixedly connected with the slider.

[0029] By adopting the above technical solution, when the first sliding cylinder slides upward, the positioning rod can guide the first sliding cylinder.

[0030] In summary, the present application includes at least one of the following beneficial effects:

[0031] 1. When the submarine cable passes through the jacket and the upper module and the submarine cable protection mechanism is installed to protect the exposed part of the submarine cable, as long as the first sliding cylinder slides upward and cooperates with the second sliding cylinder to wrap the submarine cable completely, the installation space required for the submarine cable protection mechanism is not large. Even if the distance between adjacent submarine cables is relatively close, it is not easy to interfere with the installation of the submarine cable protection mechanism, and the hoisting and installation steps of the submarine cable protection mechanism on the sea surface are also reduced. Compared with the prior art, the installation process is simpler, and thus the construction period can be shortened;

[0032] 2. The second fixing rod of the fixing component is inserted into the first fixing rod, and then the limiting rod supports the second fixing rod. The limiting rod is then fixed on the first fixing rod. No matter how much the first sliding cylinder slides upward, the fixing component can fix the first sliding cylinder in the first outer cylinder;

[0033] 3. The fixing block in the fixing component supports the first sliding cylinder through the rotating rod, and the first sliding cylinder acts on the fixing block. There is mutual restraint between the fixing block and the first sliding cylinder, and the first sliding cylinder can be fixedly installed in the first outer cylinder;

[0034] 4. The fixing rod is connected by a plurality of rotating rods. No matter how much the first sliding cylinder drives the second sliding cylinder to abut against the deck and slide upward, there are always some rotating rods that can rotate out and abut against the fixing block. The inclined surface on the fixing block and the rotating rods that rotate out cooperate with each other. Therefore, both the fixing mechanism of the fixing block and the fixing rod can support the first sliding cylinder;

[0035] 5. The positioning rod can guide the column, so that the column is centered and installed in the main support column. When high-strength grouting material is poured in the support column to fix the column in the main support column, the thickness of the high-strength grouting material around the column is basically equal, which improves the firmness after the column is fixedly connected to the main support column. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the overall structure of the related art;

[0037] Figure 2 is a schematic diagram of the overall structure of Embodiment 1 of the present application;

[0038] Figure 3 is Figure 2 an enlarged schematic view of part A of

[0039] Figure 4 is a cross-sectional view showing the submarine cable protection mechanism in Embodiment 1 of the present application;

[0040] Figure 5 is a cross-sectional view showing the column installed in the main support column in the first embodiment of the present application;

[0041] Figure 6 is Figure 5 an enlarged schematic view of part B in;

[0042] Figure 7 is a schematic view showing the state where the limiting rod is inserted into the second fixing rod in the first embodiment of the present application;

[0043] Figure 8 is a schematic view showing the upper end of the second outer cylinder directly installed on the deck in the first embodiment of the present application;

[0044] Figure 9 is a schematic view showing the state where the first sliding cylinder is installed on the first outer cylinder through the fixing assembly in the second embodiment of the present application;

[0045] Figure 10 is Figure 9 an enlarged schematic view of part C in;

[0046] Figure 11 is a schematic view showing the state where the rotating rod abuts against the fixing block in the second embodiment of the present application;

[0047] Figure 12 is a state diagram showing the fixing rod installed vertically in the installation groove in the second embodiment of the present application.

[0048] Explanation of reference numerals: 1, jacket; 11, main support column; 12, submarine cable protection pipe; 2, upper module; 21, deck; 22, column; 221, positioning strip; 3, submarine cable protection mechanism; 31, first outer cylinder; 311, sliding groove; 32, first sliding cylinder; 321, slider; 322, installation groove; 33, second outer cylinder; 331, guide groove; 34, second sliding cylinder; 341, positioning block; 4, fixing assembly; 41, first fixing rod; 411, receiving groove; 42, second fixing rod; 421, limiting hole; 43, limiting rod; 401, fixing block; 4011, inclined surface; 402, fixing rod; 4021, rotating rod; 5, positioning rod; 51, through groove; 6, pin. Detailed implementation manners

[0049] The following further elaborates on the present application in conjunction with the attached Figure 2 - 12 drawings.

[0050] Embodiment 1:

[0051] The first embodiment of the present application discloses an assembled offshore substation. Refer to Figure 2, An assembled offshore substation includes a jacket 1 and an upper module 2. The jacket 1 includes multiple main support columns 11. Connecting rods and diagonal support rods are installed between adjacent main support columns 11. Multiple submarine cable protection pipes 12 are also installed on the jacket 1, and the submarine cable protection pipes 12 can be distributed at irregular intervals on the jacket 1. The upper module 2 includes a deck 21, various modules installed on the upper surface of the deck 21, and columns 22 installed on the lower surface of the deck 21. The jacket 1 and the upper module 2 are prior arts and will not be elaborated in this embodiment.

[0052] Referring to Figure 3 , An assembled offshore substation disclosed in an embodiment of the present application further includes a submarine cable protection mechanism 3 for protecting exposed submarine cable segments. The submarine cable protection mechanism 3 is installed between the upper ends of the deck 21 and the submarine cable protection pipes 12, and the submarine cable protection mechanism 3 has the same number as and corresponds one-to-one with the submarine cable protection pipes 12.

[0053] Referring to Figure 4 , The submarine cable protection mechanism 3 includes a first outer cylinder 31 and a first sliding cylinder 32 that slides up and down on the inner wall of the first outer cylinder 31. The lower end of the first outer cylinder 31 is fixedly installed on the upper end of the submarine cable protection pipe 12. The first outer cylinder 31 and the first sliding cylinder 32 are hollow cylindrical structures, and the submarine cable protection pipe 12, the first outer cylinder 31, and the first sliding cylinder 32 are coaxially arranged. The lower end of the first outer cylinder 31 communicates with the submarine cable protection pipe 12, and an opening for the first sliding cylinder 32 to slide out is provided at the upper end of the first outer cylinder 31. Both ends of the first sliding cylinder 32 have openings for the submarine cable to pass through. The first sliding cylinder 32 is fixedly connected with a slider 321, and a sliding groove 311 for the slider 321 to slide is provided on the outer wall of the first outer cylinder 31. The sliding groove 311 is distributed along the axial direction of the first outer cylinder 31. In this way, the relative position between the first sliding cylinder 32 and the first outer cylinder 31 can be adjusted by operating the slider 321.

[0054] The submarine cable protection mechanism 3 further includes a second outer cylinder 33 and a second sliding cylinder 34 that slides up and down on the inner wall of the second outer cylinder 33. The second outer cylinder 33 and the second sliding cylinder 34 are also hollow cylindrical structures, and both ends of the second outer cylinder 33 and the second sliding cylinder 34 have openings for the submarine cable to pass through. The second outer cylinder 33 is fixedly installed on the deck 21, and a gap can be left between the upper end of the second outer cylinder 33 and the deck 21. A guide groove 331 is provided on the inner wall of the second outer cylinder 33, and the guide groove 331 extends along the axial direction of the second outer cylinder 33. The lower end of the guide groove 331 is a closed end. A positioning block 341 is connected to the outer peripheral side of the second sliding cylinder 34, and the positioning block 341 slides in the guide groove 331. The second sliding cylinder 34 cannot slide downward away from the second outer cylinder 33 through the positioning block 341.

[0055] Referring to Figure 5, the inner diameter and outer diameter dimensions of the first outer cylinder 31 and the second outer cylinder 33 can be the same. When the upright column 22 is inserted into the main support column 11, the upper end of the first outer cylinder 31 abuts against the lower end of the second outer cylinder 33. By pushing the first sliding cylinder 32 upward through the slider 321, the first sliding cylinder 32 pushes the second sliding cylinder 34 to slide upward until the upper end of the second sliding cylinder 34 abuts against the lower surface of the deck 21. The cooperation of the first sliding cylinder 32 and the second sliding cylinder 34 can block the chute 311. A fixing assembly 4 for fixing the first sliding cylinder 32 is installed between the first outer cylinder 31 and the first sliding cylinder 32. After the first sliding cylinder 32 is fixed, the second sliding cylinder 34 remains in contact with the deck 21. When the submarine cable passes through the submarine cable protection pipe 12 from bottom to top, the submarine cable located between the jacket 1 and the deck 21 is wrapped in the first outer cylinder 31, the second outer cylinder 33, and the second sliding cylinder 34, so that the submarine cable between the submarine cable protection pipe 12 and the deck 21 is no longer exposed outside.

[0056] Referring to Figure 6 and Figure 7 , the fixing assembly 4 includes a first fixing rod 41 and a second fixing rod 42. The first fixing rod 41 is fixedly installed in the chute 311. The slider 321 is provided with a through hole for the first fixing rod 41 to pass through. The slider 321 slides up and down on the first fixing rod 41. The first fixing rod 41 has a limiting effect on the first sliding cylinder 32, so that the first sliding cylinder 32 can only slide up and down in the first outer cylinder 31. The second fixing rod 42 is installed on the outer wall of the first sliding cylinder 32. The length direction of the second fixing rod 42 is the same as the axial direction of the first sliding cylinder 32. A long groove for embedding the second fixing rod 42 is provided on the outer wall of the first sliding cylinder 32. The lower end of the second fixing rod 42 is fixedly connected with a rotating shaft, and the rotating shaft is rotatably installed at the bottom end of the long groove of the first sliding cylinder 32. The axial direction of the rotating shaft is perpendicular to the axial direction of the first sliding cylinder 32.

[0057] Referring to Figure 5 and Figure 6 , when the first sliding cylinder 32 drives the second sliding cylinder 34 to abut against the deck 21, since the chute 311 is exposed outside, the second fixing rod 42 rotates out of the long groove with the rotating shaft as the rotation center. A receiving groove 411 for the second fixing rod 42 to turn into is provided on the first fixing rod 41, and the receiving groove 411 extends along the length direction of the first fixing rod 41.

[0058] Referring to Figure 6 and Figure 7, a limiting rod 43 is inserted through the first fixing rod 41, and the limiting rod 43 slides up and down in the receiving groove 411. There is a gap between the lower end of the first fixing rod 41 and the sliding groove 311. The lower end of the limiting rod 43 extends out of the first fixing rod 41. A limiting hole 421 for inserting the limiting rod 43 is formed in the second fixing rod 42. When the second fixing rod 42 is rotated into the receiving groove 411, the limiting rod 43 slides upward and is inserted into the limiting hole 421. The lower end of the limiting rod 43 is fixedly welded to the first fixing rod 41, so that the first sliding cylinder 32 is fixed to the first outer cylinder 31, and the second sliding cylinder 34 remains in contact with the deck 21.

[0059] Refer to Figure 4 and Figure 5 , when the submarine cable protection pipes 12 are distributed, some of the submarine cable protection pipes 12 will be close to the main support column 11. Some of the first outer cylinders 31 are connected with positioning rods 5. The end of the positioning rod 5 away from the first outer cylinder 31 is located above the main support column 11. In the embodiment of the present application, only one first outer cylinder 31 has a positioning rod 5. When the column 22 moves downward close to the main support column 11, the positioning rod 5 plays a guiding role for the column 22.

[0060] Refer to Figure 4 and Figure 5 , a positioning strip 221 is fixedly connected to the outer peripheral side of one of the columns 22. The positioning strip 221 extends along the length direction of the column 22. A through groove 51 for the positioning strip 221 to pass through is formed in the first positioning block 341. During the process of installing the upper module 2 on the jacket 1, the column 22 equipped with the positioning strip 221 is located above the positioning rod 5. When the column 22 moves downward, the positioning strip 221 cooperates with the through groove 51 of the positioning rod 5, so that the column 22 can be vertically installed downward in the main support column 11. After being guided by the positioning rod 5, the column 22 and the main support column 11 are in a coaxial state when installed together. Since the column 22 and the main support column 11 are in one-to-one correspondence, the other columns 22 are also centered and installed in the main support column 11. When the high-strength grouting material is poured between the column 22 and the main support column 11, the thickness of the high-strength grouting material is basically equal, so that the upper module 2 is stably installed on the jacket 1.

[0061] Refer to Figure 8, one end of the second outer cylinder 33 can also be directly fixedly installed on the lower surface of the deck 21, and the upper end of the second outer cylinder 33 abuts against the deck 21. When the column 22 is installed in the main support column 11, the second outer cylinder 33 is located above the first outer cylinder 31. The second sliding cylinder 34 can extend into the first outer cylinder 31, and the first sliding cylinder 32 can also extend upward out of the first outer cylinder 31 and abut against the lower end of the second sliding cylinder 34 for fixation. The cooperation between the first sliding cylinder 32 and the second sliding cylinder 34 enables the submarine cable to be completely wrapped and protected when passing between the first outer cylinder 31 and the second outer cylinder 33. The first outer cylinder 31, the second outer cylinder 33, the first sliding cylinder 32, and the second sliding cylinder 34 do not have to be coaxial, but the axial distance deviation between the first outer cylinder 31, the second outer cylinder 33, the first sliding cylinder 32, and the second sliding cylinder 34 is very small. The inner diameter of the first sliding cylinder 32 is the smallest, and the inner diameter of the first sliding cylinder 32 is greater than the outer diameter of the submarine cable, enabling the submarine cable to pass through the submarine cable protection mechanism 3 smoothly.

[0062] The implementation principle of an assembled offshore booster station in an embodiment of the present application is as follows:

[0063] After the jacket 1 is installed on land, the position of the submarine cable protection pipe 12 is fixed, and the first outer cylinder 31 and the first sliding cylinder 32 are fixedly installed on the jacket 1. According to the distribution of the submarine cable protection pipes 12 on the jacket 1, a plurality of second outer cylinders 33 are fixedly installed on the deck 21 so that the first outer cylinders 31 and the second outer cylinders 33 correspond one by one, and the second sliding cylinders 34 slide in the second outer cylinders 33. When the upper module 2 and the jacket 1 are assembled, the first outer cylinder 31 and the second outer cylinder 33 are coaxially installed together, and then the first sliding cylinder 32 and the second sliding cylinder 34 are slid to cooperate. First, the electric telescopic rod plays a temporary supporting role for the first sliding cylinder 32. The lower end of the electric telescopic rod abuts against the jacket 1, and the telescopic end of the electric telescopic rod abuts against the slider 321. Then, the second fixing rod 42 is rotated into the first fixing rod 41, and then the limiting rod 43 is inserted into the second fixing rod 42. Finally, the limiting rod 43 is welded so that the exposed submarine cable is fully wrapped. The entire installation process of the submarine cable protection mechanism 3 has little requirement for the installation space on the periphery. As long as the slider 321 is slid and the slider 321 is fixed by the fixing assembly 4, it is not necessary to lift and install each component of the submarine cable protection mechanism 3 separately. Other relatively close submarine cables are not likely to interfere with the installation of the submarine cable protection mechanism 3. The entire installation process is simpler, thereby reducing the construction difficulty of protecting the exposed submarine cable;

[0064] During the assembly process of the upper module 2 and the jacket 1, the first positioning block 341 on the first outer cylinder 31 can guide the column 22 so that the column 22 is centered and installed on the main support column 11. When the high-strength grouting material is poured into the main support column 11, the high-strength grouting material can evenly wrap the column 22, which can further improve the firmness between the upper module 2 and the jacket 1.

[0065] Embodiment 2:

[0066] Referring to Figure 9 and Figure 10 , the difference between Embodiment 2 and Embodiment 1 lies in the different structure of the fixing component 4, and the rest is basically the same as that of Embodiment 1. The fixing component 4 of Embodiment 2 includes a fixing block 401, which is slidably installed on the bottom wall of the chute 311, and the sliding direction of the fixing block 401 is the same as the radial direction of the first outer cylinder 31. The fixing block 401 is located below the slider 321, and the surface of the fixing block 401 close to the slider 321 is an inclined surface 4011.

[0067] Referring to Figure 10 and Figure 11 , the fixing component 4 of Embodiment 2 further includes a fixing rod 402. The fixing rod 402 includes a plurality of rotating rods 4021 spliced in sequence. Adjacent rotating rods 4021 are rotatably connected. One end of the rotating rod 4021 is provided with a notch, and the other end of the rotating rod 4021 is fixedly connected with a convex block. A rotating shaft is fixedly installed on the convex block, and the rotating shaft of one rotating rod 4021 is rotatably installed in the notch of the other rotating rod 4021. An installation groove 322 for installing the fixing rod 402 is opened on the outer wall of the first sliding cylinder 32, and the length direction of the installation groove 322 is the same as that of the chute 311. One end of the fixing rod 402 is rotatably installed on the bottom wall at the lower end of the installation groove, that is, the rotating shaft of one of the rotating rods 4021 is rotatably installed in the installation groove.

[0068] Referring to Figure 12 , when the slider 321 of the first sliding cylinder 32 abuts against the fixing block 401, the fixing rod 402 is located in the installation groove 322 of the first sliding cylinder 32, and the fixing rod 402 maintains a vertical state. The fixing rod 402 is covered by the first outer cylinder 31, and the first outer cylinder 31 plays a limiting role on the fixing rod 402.

[0069] When the first sliding cylinder 32 slides upward to push the second sliding cylinder 34, some of the rotating rods 4021 can rotate out of the installation groove 322, adjacent rotating rods 4021 can rotate relative to each other, some of the rotating rods 4021 can rotate downward to be parallel to the rotating rods 4021 in the installation groove 322, the sliding fixing block 401 approaches the fixing rod 402, and the rotating rods 4021 rotating downward can abut against the inclined surface 4011 of the fixing block 401. In order to keep the rotating rod 402 in an abutting state with the fixing block 401, a fixing member is detachably installed between adjacent rotating rods 4021.

[0070] Referring to Figure 10 and Figure 11, the fixing member is a bolt 6, and the bolt 6 is inserted into two adjacent rotating rods 4021, and the bolt 6 passes through the bump. The width of the installation groove 322 is greater than the width of the rotating rod 4021. When the rotating rod 4021 is located in the installation groove 322, the bolt 6 can be inserted between the two rotating rods 4021, and the bolt 6 can also leave the two rotating rods 4021.

[0071] When the bolt 6 is inserted between the two rotating rods 4021, the two rotating rods 4021 cannot be rotatably connected. Only after the bolt 6 is pulled out can the rotating rod 4021 rotate. According to the upward sliding distance of the first sliding cylinder 32, the rotating rod 4021 that can be rotated out of the installation groove 322 is rotated. The rotating rod 4021 closest to the installation groove 322 is in a horizontal state, and the other rotated rotating rods 4021 rotate downward and abut against the fixed block 401, and then all the rotating rods 4021 are fixed with the bolt 6, so that the rotating rods 4021 cannot rotate relative to each other, and the fixed block 401 can support the first sliding cylinder 32. When the first sliding cylinder 32 drives the second sliding cylinder 34 to abut against the lower surface of the deck 21, the first sliding cylinder 32 abuts against the fixed block 401 through the fixed rod 402, so that the first sliding cylinder 32 can be fixed on the first outer cylinder 31.

[0072] In addition, it should be noted that a connecting block is connected to the lower end of the fixed block 401, and a sliding groove for the connecting block to slide is provided on the first outer cylinder 31. The fixed block 401 can only move along the radial direction of the first outer cylinder 31 under the guidance of the sliding groove. When assembling the fixing component 4 of the second embodiment, when the first sliding cylinder 32 is installed on the first outer cylinder 31, the fixed block 401 is made of steel structure and has a certain weight. When the fixed rod 402 abuts against the fixed block 401, the weight of the first sliding cylinder 32 is also added to the fixed block 401. Therefore, the fixed block 401 can stably support the first sliding cylinder 32, and there is no need to use welding technology to fix the fixed block 401 on the first outer cylinder 31.

[0073] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An assembled offshore substation, characterized in that: It includes a jacket (1), an upper module (2), and at least one submarine cable protection mechanism (3). The jacket (1) includes multiple main support columns (11) and at least one submarine cable protection pipe (12). The upper module (2) includes a deck (21) and columns (22). The submarine cable protection mechanism (3) is installed between the deck (21) and the submarine cable protection pipe (12), and each submarine cable protection mechanism (3) corresponds to each submarine cable protection pipe (12) one by one; The submarine cable protection mechanism (3) includes a first outer cylinder (31) and a first sliding cylinder (32) slidably installed up and down inside the first outer cylinder (31). The first outer cylinder (31) is fixedly installed at one end of the submarine cable protection pipe (12) close to the upper module (2). The first sliding cylinder (32) is connected with a slider (321). A chute (311) is formed on the outer wall of the first outer cylinder (31), and the slider (321) slides up and down inside the chute (311); The submarine cable protection mechanism (3) further includes a second outer cylinder (33) and a second sliding cylinder (34) slidably installed up and down inside the second outer cylinder (33). The second outer cylinder (33) is fixedly installed on the surface of the deck (21). One end of the second sliding cylinder (34) away from the deck (21) can extend out of the second outer cylinder (33) under the action of gravity; When the column (22) is installed on the main support column (11), the second sliding cylinder (34) is inserted into the first outer cylinder (31). A fixing component (4) for fixing the first sliding cylinder (32) is installed between the first outer cylinder (31) and the first sliding cylinder (32). When the first sliding cylinder (32) abuts against the second sliding cylinder (34), the first sliding cylinder (32) is fixed by the fixing component (4).

2. The prefabricated offshore booster station according to claim 1, characterized in that: The fixing component (4) includes a first fixing rod (41) and a second fixing rod (42). The first fixing rod (41) is fixedly installed inside the chute (311). The second fixing rod (42) is rotatably installed inside the first sliding cylinder (32), and the second fixing rod (42) is located below the slider (321).

3. The prefabricated offshore booster station according to claim 2, wherein: The first fixing rod (41) penetrates through the slider (321).

4. An assembled offshore booster station according to claim 2 or 3, characterized in that: The first fixing rod (41) is provided with a receiving groove (411) for the second fixing rod (42) to turn into. A limiting rod (43) is penetrated through the receiving groove (411), and a limiting hole (421) for the limiting rod (43) to be inserted into is formed on the second fixing rod (42).

5. The prefabricated offshore booster station according to claim 1, characterized in that: The fixing component (4) includes a fixing rod (402) and a fixing block (401). The fixing block (401) is slidably mounted on the bottom wall of the sliding groove (311). One side of the fixing block (401) close to the slider (321) is an inclined surface (4011). The fixing rod (402) is embedded on the outer wall of the first sliding cylinder (32), below the slider (321), and includes a plurality of rotating rods (4021) spliced in sequence. The adjacent two rotating rods (4021) are rotatably connected between each other, and between the rotating rod (4021) and the first sliding cylinder (32). A fixing member is detachably installed between the adjacent two rotating rods (4021).

6. The prefabricated offshore booster station according to claim 5, wherein: The fixing member is a pin (6), and the pin (6) is inserted on the adjacent two rotating rods (4021).

7. A prefabricated offshore booster station according to claim 1, characterized in that: Part of the first outer cylinder (31) is connected with a positioning rod (5). One end of the positioning rod (5) is located above the main support column (11), and the upright column (22) forms a sliding contact relationship with the positioning rod (5).

8. The prefabricated offshore booster station according to claim 7, characterized in that: The upright column (22) is fixedly connected with a positioning strip (221), and a through groove (51) for the positioning strip (221) to pass through is formed on the positioning rod (5).

9. The prefabricated offshore substation according to claim 7, wherein: The positioning rod (5) is fixedly connected with the slider (321).

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