Submarine cable through structure

Abstract

The application discloses a submarine cable penetrating structure and relates to the technical field of ocean energy engineering, which comprises a fixed support, which is arranged at the periphery of a submarine cable penetrating hole and is fixedly connected with a platform deck, and the included angle between the end surface of the fixed support and the platform deck is 10-15 degrees; a U-shaped connecting plate, which is arranged on the end surface of the fixed support and is fixedly connected with a submarine cable anchor; and a submarine cable support, which is arranged on the platform deck and is used for supporting and assisting in guiding the submarine cable to extend to the submarine cable penetrating hole. According to the submarine cable penetrating structure, the fixed support and the submarine cable support are matched to fix the submarine cable and the submarine cable anchor, the overall structure is stable and high in strength, can effectively bear the sea wind and wave, avoids the submarine cable from jumping off and being pulled off the floating platform, and avoids causing the electrical system to fail. The submarine power supply and power generation of the floating platform can be continuously operated, the safety of the power supply and power generation during the operation of the floating platform device is ensured, and the safe use of the facilities of the floating platform device is ensured.

Description

Technical Field

[0001] This invention relates to the field of marine energy engineering technology, and in particular to a submarine cable penetration structure. Background Technology

[0002] Marine energy engineering structures require high structural standards and complex, varied designs due to the need to withstand the unique marine environment. In addition to the main structure, floating platform devices also incorporate electrical systems. Submarine cables within these electrical systems are laid out through the floating platform and are susceptible to operational vibrations and sea conditions during installation, making them prone to tripping or breaking. This directly impacts the normal operation of the electrical system and poses maritime safety hazards to the floating platform's power supply and generation.

[0003] Chinese Patent CN 201410610888.0 discloses a temporary fixing device for a submarine cable platform, including symmetrically arranged bases. The lower end of the bases is provided with a connecting flange. The lower end of the connecting flange is fixedly connected to a platform flange by a first bolt. The connecting flange has a first through hole inside. The upper end of the connecting flange is provided with a fixing boss. Side plates are provided on both sides of the fixing boss. The inner side of the fixing boss is provided with an inverted conical hole. A matching inverted conical tightening block is provided in the inverted conical hole. A pressure plate is provided on the upper part of the tightening block. A second through hole is provided in the center of the pressure plate. A submarine cable passes through the first through hole, the inverted conical hole, and the second through hole.

[0004] Traditional electrical system designs are simple and cannot effectively protect the cable routing of special floating platform equipment. It is necessary to design a cable routing arrangement that avoids the risk of cable slippage or breakage on the floating platform equipment. Summary of the Invention

[0005] This invention aims to at least address the technical problems existing in the prior art, namely, "simple structural design, but easy susceptibility to operational vibrations and sea waves during the cable routing process, leading to easy breakage or detachment." To this end, this invention proposes a cable penetration structure with good stability and high strength, effectively withstanding sea waves. By maintaining the cable in a normal and stable working state, it effectively protects the electrical system of the floating platform, preventing impacts and collisions caused by unstable factors such as wind, waves, and currents.

[0006] According to some embodiments of the present invention, a submarine cable penetration structure is applied to a floating platform, the floating platform including a platform deck, the platform deck being provided with a submarine cable penetration hole, through which a submarine cable passes and is anchored; comprising:

[0007] A fixed support is provided around the periphery of the submarine cable penetration hole and is fixedly connected to the platform deck. The angle between the end face of the fixed support and the platform deck is 10° to 15°, which is used to guide the submarine cable to be anchored to the submarine cable.

[0008] A U-shaped connecting plate is disposed on the end face of the fixed support, and the U-shaped connecting plate is anchored to the submarine cable;

[0009] The submarine cable support is installed on the platform deck to support and guide the submarine cable as it extends toward the cable penetration hole.

[0010] According to some embodiments of the present invention, a fixed support pad is provided between the fixed support and the platform deck, and the projected area of ​​the fixed support pad is larger than the projected area of ​​the fixed support.

[0011] According to some embodiments of the present invention, the fixed support includes a fixed support panel and a fixed support elbow plate, the bottom of the fixed support elbow plate is connected to the fixed support pad plate, and the top is connected to the fixed support panel; the included angle between the fixed support panel and the fixed support pad plate is 10° to 15°.

[0012] According to some embodiments of the present invention, the fixed support panel and the fixed support pad are connected by a fixed support web, the fixed support web being used to enhance the structural strength of the fixed support.

[0013] According to some embodiments of the present invention, the projected shape of the web of the fixed support is U-shaped, which matches the opening shape of the U-shaped connecting plate.

[0014] According to some embodiments of the present invention, the submarine cable support includes a submarine cable support column, the top of the submarine cable support column is provided with a submarine cable support groove, the bottom is connected to the platform deck, and the submarine cable is placed in the submarine cable support groove.

[0015] According to some embodiments of the present invention, the submarine cable support includes a submarine cable support cross brace and a submarine cable support diagonal brace. The submarine cable support cross brace is disposed in the middle of the submarine cable support column. One end of the submarine cable support diagonal brace is connected to the submarine cable support cross brace, and the other end is connected to the platform deck.

[0016] According to some embodiments of the present invention, the submarine cable support groove includes a submarine cable support groove bottom plate and submarine cable support groove baffles, wherein the submarine cable support groove baffles are disposed on both sides of the submarine cable support groove bottom plate.

[0017] According to some embodiments of the present invention, the width of the bottom plate of the submarine cable support groove is greater than the diameter of the submarine cable, and the height of the stop bar of the submarine cable support groove is greater than the diameter of the submarine cable.

[0018] According to some embodiments of the present invention, the submarine cable in the submarine cable support groove is fixed by a cable clamp.

[0019] The submarine cable penetration structure according to some embodiments of the present invention has at least the following beneficial effects: the fixed support and the submarine cable bracket cooperate to fix the submarine cable and the submarine cable anchorage. The overall structure has good stability and high strength, and can effectively withstand sea waves, preventing the submarine cable of the floating platform from jumping or breaking, and avoiding electrical system failure. It enables the floating platform to continuously operate its power supply and generation, ensuring the safety of power supply and generation during the operation of the floating platform equipment, and protecting the safe use of the floating platform equipment facilities.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a front view of the submarine cable penetration structure according to an embodiment of the present invention;

[0023] Figure 2 This is a diagram showing the cable penetration arrangement of the cable penetration structure according to an embodiment of the present invention;

[0024] Figure 3 This is a structural diagram of the fixed support pad of the submarine cable penetration structure according to an embodiment of the present invention;

[0025] Figure 4 This is a plan view of the fixed support structure of the submarine cable penetration structure according to an embodiment of the present invention;

[0026] Figure 5 This is a side view of the fixed support structure of the submarine cable penetration structure according to an embodiment of the present invention;

[0027] Figure 6 This is a structural diagram of the submarine cable support structure of the submarine cable penetration structure according to an embodiment of the present invention;

[0028] Figure 7 This is a structural diagram of the submarine cable support groove of the submarine cable penetration structure according to an embodiment of the present invention;

[0029] Figure 8 This is a diagram of the transition structure of the submarine cable support in an embodiment of the present invention.

[0030] Figure label:

[0031] Floating platform 100, platform deck 110, submarine cable penetration hole 120,

[0032] Fixed support 200, fixed support panel 210, fixed support web 220, fixed support elbow plate 230, submarine cable 300, submarine cable anchor 400.

[0033] Submarine cable support 500, submarine cable support column 510, submarine cable support cross brace 520, submarine cable support diagonal brace 530, submarine cable support groove 600, submarine cable support groove bottom plate 610, submarine cable support groove retaining strip 620, cable clamp 700, fixed support pad 800, U-shaped connecting plate 900. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, top, bottom, etc., are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] The following is for reference. Figures 1-8 A submarine cable penetration structure according to an embodiment of the present invention is described.

[0039] like Figures 1-8As shown, the submarine cable penetration structure is mainly used on the floating platform 100. The floating platform 100 includes a platform deck 110, on which a submarine cable penetration hole 120 is provided. In this embodiment, the submarine cable penetration hole 120 is U-shaped, and the submarine cable 300 passes through the submarine cable penetration hole 120 and connects to the submarine cable anchor 400. The submarine cable penetration structure includes a fixed support 200, a U-shaped connecting plate 900, and a submarine cable bracket 500. The fixed support 200 is located around the submarine cable penetration hole 120 and is fixedly connected to the platform deck 110. The end face of the support is specified to form an angle of 10° to 15° with the platform deck 110, which is used to guide the submarine cable 300 to connect with the submarine cable anchor 400, so that the submarine cable 300 is connected to the submarine cable anchor 400 at a suitable angle. A U-shaped connecting plate 900 is disposed on the end face of the fixed support 200. The U-shaped connecting plate 900 is connected to the submarine cable anchor 400. After the submarine cable anchor 400 is fixed to the U-shaped connecting plate 900, it is combined with the submarine cable 300 to form a connected whole. A submarine cable bracket 500 is disposed on the platform deck 110 to support and assist in guiding the submarine cable 300 to extend towards the submarine cable penetration hole 120. In this embodiment, there are multiple submarine cable brackets 500. Under the support of the submarine cable brackets 500, the submarine cable 300 extends towards the submarine cable penetration hole 120 at a certain arc.

[0040] In the power generation system of the floating platform 100 for offshore wind power, wave energy, etc., the submarine cable penetration structure of the present invention can keep the submarine cable 300 in a relatively fixed working state and prevent it from deviating from its position. This ensures that the submarine cable 300 can maintain its optimal working state under severe wind and wave conditions and when the floating platform 100 is swaying, preventing the submarine cable 300 from deviating and falling off, thereby ensuring the safety of the floating platform 100 for offshore power generation.

[0041] In the routing design of the submarine cable 300 on platform deck 110, the submarine cable 300 needs to pass through the structure of platform deck 110 and enter the seabed. The structural design of platform deck 110 passes through fixed support 200, and the submarine cable 300 is connected to the submarine cable anchor 400 at fixed support 200 in a fixed point manner, thus completing a normal and smooth crossing process and realizing the normal function of the floating platform 100 power generation system. The height h1 at the lower position of fixed support 200 is designed to be greater than 100mm to facilitate installation and welding construction; the two ends of fixed support 200 are designed to have different heights and an inclined angle A, with A ranging from 10° to 15°, which is conducive to the smooth transition of submarine cable 300 to submarine cable support 500 when crossing platform deck 110.

[0042] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, a fixed support pad 800 is provided between the fixed support 200 and the platform deck 110, and the projected area of ​​the fixed support pad 800 is larger than the projected area of ​​the fixed support 200.

[0043] Specifically, at the structural penetration point of the platform deck 110 and the position of the U-shaped submarine cable penetration hole 120, a fixed support pad 800 is designed and welded to the platform deck 110 for reinforcement. The fixed support 200 is welded and fixed above the fixed support pad 800. The submarine cable 300 is fixed to the submarine cable anchor 400 and the U-shaped connecting plate 900 at this penetration point by means of bolt movable connection.

[0044] The cable penetration hole 120 is designed with a U-shaped open hole to facilitate the construction of the cable 300 through it. Simultaneously, the U-shaped opening is used to install welded and fixed support plates 800, reinforcing the platform deck 110 structure and preventing stress concentration that could affect structural strength. Given the diameter d of the cable 300, the U-shaped penetration hole is approximately 2d in size. Bolt fixing provides a flexible and detachable structure, facilitating construction, adjustment, and installation. Fixed supports 200 are welded and fixed above the fixed support plates 800, structurally integrating with the platform deck 110 to form a unified structure, improving the fixation and structural strength of the platform deck 110 at the penetration point.

[0045] like Figure 3 As shown, the fixed support plate 800 has a U-shaped through hole, the size of which matches the size of the through hole at the platform deck 110, with a width of b2, where b2 = 2d, and the diameter d of the submarine cable 300. The fixed support plate 800 has a length of a1 and a width of b1, and is designed to be made of steel plate material, with the thickness determined according to the design, selecting a plate thickness of 15-25mm, and the material is CCS-A grade. The fixed support plate 800 has an elongated hole in the middle for welding plugging to the platform deck 110 structure, improving the structural strength at the opening location.

[0046] In some embodiments of the present invention, such as Figure 4 and Figure 5 As shown, the fixed support 200 includes a fixed support panel 210 and a fixed support elbow plate 230. The bottom of the fixed support elbow plate 230 is connected to the fixed support pad 800, and the top is connected to the fixed support panel 210. The angle between the fixed support panel 210 and the fixed support pad 800 is 10° to 15°. In this embodiment, the angle between the fixed support panel 210 and the fixed support pad 800 is 12°.

[0047] In a further embodiment, such as Figure 4 and Figure 5 As shown, the fixed support panel 210 and the fixed support pad 800 are connected by a fixed support web 220, which enhances the structural strength of the fixed support 200. Specifically, the fixed support panel 210, the fixed support web 220, and the fixed support elbow plate 230 are made of steel plate, with a thickness determined according to the design, typically 10-20 mm, and the material is CCS-A grade.

[0048] In a further embodiment, such as Figure 4 and Figure 5 As shown, the projected shape of the fixed support web 220 is U-shaped, which matches the opening shape of the U-shaped connecting plate 900.

[0049] Specifically, the fixed support panel 210 is also designed with a U-shaped panel structure, with a length of a2, a width of b4, an opening width of b3, b3 = 2d, and a diameter of d for the submarine cable of 300. The fixed support panel 210 adopts a drilling method, and the number and size of the drill holes are designed according to the specifications, and the number and size of the drill holes are matched with the U-shaped connecting plate 900.

[0050] In some embodiments of the present invention, such as Figure 1 and Figure 6 As shown, the submarine cable support 500 includes a submarine cable support column 510, the top of which is provided with a submarine cable support groove 600, and the bottom is connected to the platform deck 110. The submarine cable 300 is placed in the submarine cable support groove 600.

[0051] Specifically, the submarine cable support 500 adopts a pillar-type structure, with a design height H of 100-1000mm. It is constructed using structural steel, specifically angle steel or channel steel, with specifications determined by the design, and the material is Q235-A.

[0052] Submarine cable 300 is routed above platform deck 110, following a streamlined path through cable support 500. The design radii R1, R2, and R3 at the turning points are greater than 10d to prevent damage to cable 300 due to excessive turning. The installation height of cable support 500 at the penetration point transitions from high H to low H1, with H1 determined for ease of installation. Furthermore, its height above platform deck 110 prevents the cable 300's routing from being affected by water accumulation on the deck.

[0053] In a further embodiment, such as Figure 6 As shown, the submarine cable support 500 includes a horizontal support 520 and a diagonal support 530. The horizontal support 520 is located in the middle of the submarine cable support column 510. One end of the diagonal support 530 is connected to the horizontal support 520, and the other end is connected to the platform deck 110. A triangular support is formed in the lower half of the submarine cable support column 510, which is more stable.

[0054] In some embodiments of the present invention, such as Figure 1 and Figure 7 As shown, the submarine cable support groove 600 includes a submarine cable support groove bottom plate 610 and a submarine cable support groove baffle 620, with the baffle 620 disposed on both sides of the submarine cable support groove bottom plate 610.

[0055] Specifically, the submarine cable support trough 600 adopts a trough-shaped support structure. The submarine cable support trough 600 structure is welded and fixed above the submarine cable support 500 structure, and is supported by the submarine cable support 500 structure. The height h and width b of the submarine cable support trough 600 are designed with h = 1.5d and b = 3d. The design uses steel plate material with a thickness of 0.5~2mm and material Q235-A.

[0056] In some embodiments of the present invention, such as Figure 1 and Figure 7 As shown, the width of the bottom plate 610 of the submarine cable support groove is greater than the diameter of the submarine cable 300, and the height of the baffle 620 of the submarine cable support groove is greater than the diameter of the submarine cable 300. Specifically, this ensures that the submarine cable 300 can sway to a certain extent within the submarine cable support groove 600 while preventing the submarine cable 300 from jumping out of the submarine cable support groove 600.

[0057] In some embodiments of the present invention, such as Figure 1 and Figure 8 As shown, the submarine cable 300 in the submarine cable support groove 600 is fixed by the cable clamp 700. Specifically, the submarine cable 300 is fixed in the direction of the submarine cable support 500 by using a common cable clamp 700 binding structure to bind and fix the submarine cable 300.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A subsea cable penetration structure for use on a floating platform (100), the floating platform (100) comprising a platform deck (110) provided with a subsea cable penetration aperture (120) through which a subsea cable (300) is connected to a subsea cable anchor (400); characterized in that, The utility model relates to a kind of marine cable anchoring device, including: Fixed support (200) is arranged in the circumferential of the sea cable through hole (120), and is fixedly connected with the platform deck (110), the included angle between the end surface of the fixed support (200) and the platform deck (110) is 10 ° ~ 15 °, for guiding the sea cable (300) and the sea cable anchoring (400) connection;U-shaped connecting plate (900) is arranged in the end surface of the fixed support (200), and the U-shaped connecting plate (900) is connected with the sea cable anchoring (400);Marine cable support (500) is arranged on the platform deck (110), for supporting and assisting guiding the sea cable (300) to the sea cable through hole (120) extension; The fixed support (200) and the platform deck (110) are provided with fixed support backing plate (800), the projection area of the fixed support backing plate (800) is greater than the projection area of the fixed support (200), the fixed support (200) includes fixed support panel (210) and fixed support elbow plate (230), the bottom of the fixed support elbow plate (230) is connected with the fixed support backing plate (800), and the top is connected with the fixed support panel (210);The included angle between the fixed support panel (210) and the fixed support backing plate (800) is 10 ° ~ 15 °;The marine cable support (500) includes marine cable support column (510), and the top of the marine cable support column (510) is provided with marine cable support groove (600), and the bottom is connected with the platform deck (110), the sea cable (300) is placed in the marine cable support groove (600), and the marine cable support (500) includes marine cable support cross brace (520) and marine cable support inclined brace (530), the marine cable support cross brace (520) is arranged in the middle of the marine cable support column (510), one end of the marine cable support inclined brace (530) is connected with the marine cable support cross brace (520), and the other end is connected with the platform deck (110);The marine cable support groove (600) includes marine cable support groove bottom plate (610) and marine cable support groove baffle (620), the marine cable support groove baffle (620) is arranged on both sides of the marine cable support groove bottom plate (610), and the sea cable (300) in the marine cable support groove (600) is fixed by cable clamp (700).

2. A sea cable penetration structure according to claim 1, characterised in that, The fixed support panel (210) and the fixed support backing plate (800) are connected by fixed support web (220), and the fixed support web (220) is used to enhance the structural strength of the fixed support (200).

3. A sea cable penetration structure according to claim 2, characterised in that, The projection shape of the fixed support web (220) is U-shaped, and matches the opening shape of the U-shaped connecting plate (900).

4. A sea cable penetration structure according to claim 1, characterised in that The width of the marine cable support groove bottom plate (610) is greater than the diameter of the sea cable (300), and the height of the marine cable support groove baffle (620) is greater than the diameter of the sea cable (300).

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