Submarine cable armored structure anchoring device

Abstract

The utility model provides a submarine cable armored structure anchoring device which comprises a protective sleeve, an armored structure is arranged in the protective sleeve, one end of the protective sleeve is sealed through a grouting cover plate, the other end of the protective sleeve is connected with an anti-bending pipe through a connecting flange, and through holes for a submarine cable to penetrate through are formed in the anti-bending pipe and the protective sleeve. The protective sleeve comprises two protective covers which are symmetrically arranged, one sides of the two protective covers are connected through a hinge, the other sides of the two protective covers are fixed through bolts, and the split type protective sleeve is adopted, so that installation, disassembly and maintenance are convenient; an anti-bending pipe is arranged, so that the submarine cable is prevented from being excessively bent under a relatively large bending moment, and the service life of the submarine cable is prolonged; the protective sleeve and the anti-bending pipe are connected through the connecting flange, so that the overall sealing performance is improved; and the epoxy binder is poured into the protective sleeve, so that the sealing performance of the submarine cable armoring anchoring device is enhanced, seawater is effectively prevented from entering the conical protective cover to corrode the first armoring steel wire layer and the second armoring steel wire layer, and the durability of the submarine cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to submarine cable fixing technical field especially relates to a kind of sea cable armoring structure anchoring device. BACKGROUND

[0002] As high-quality clean energy, offshore wind power goes from near sea to far sea, and offshore wind turbine foundation changes from fixed type to floating type. The submarine cable connected with floating wind turbine platform becomes dynamic submarine cable, and the end of the submarine cable can be fixed on offshore floating platform by anchoring of armored steel wire. Under the action of large self-weight and tension of submarine cable, anchoring structure and armored steel wire need to provide enough reaction force to balance. For submarine cable with multiple layers of armored steel wire, the commonly used metal pressing plate anchoring structure is difficult to install and maintain. On the other hand, dynamic submarine cable has poor sealing performance. After the outer layer of submarine cable is stripped, armored steel wire is easily corroded by seawater, which will threaten the long-term use of submarine cable. SUMMARY

[0003] The utility model aims at overcoming the deficiencies of the prior art, and provides a sea cable armoring structure anchoring device, which can solve the problem of difficulty in installation and maintenance of the commonly used metal pressing plate anchoring structure for submarine cable with multiple layers of armored steel wire.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A sea cable armoring structure anchoring device includes a protective sleeve, the protective sleeve is provided with an armoring structure, one end of the protective sleeve is sealed by a grouting cover plate, the other end of the protective sleeve is connected with a bend-proof pipe through a connecting flange, the bend-proof pipe and the protective sleeve are provided with through holes for submarine cable to pass through, the protective sleeve includes two symmetrical protective covers, one side of the two protective covers is connected by a hinge, and the other side of the two protective covers is fixed by bolts.

[0006] Based on the above technical solutions, the utility model can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0007] The protective sleeve is a circular truncated cone, and the diameter of one end of the protective sleeve where the grouting cover plate is arranged is larger.

[0008] The protective sleeve is provided with a grouting hole and a slurry outlet hole, and the protective sleeve is filled with an epoxy adhesive.

[0009] The armoring structure includes a first flange and a second flange, the second flange is sleeved in the first flange, a first armored steel wire layer is arranged between the first flange and the second flange, a second armored steel wire layer is arranged in close contact with the inner wall of the second flange, and the upper parts of the first armored steel wire layer and the second armored steel wire layer are bent outward.

[0010] The main bodies of the first flange and the second flange are both truncated cone-shaped.

[0011] A first connecting platform is provided at one end of the first flange facing the connecting flange, wherein the diameter of the first connecting platform is larger than the diameter of the through hole, and the first flange is connected to the connecting flange via the first connecting platform and bolts;

[0012] The first flange and the second flange are respectively provided with a second connecting platform and a third connecting platform toward one end away from the connecting flange, and the first flange and the second flange are bolted to the grouting cover plate through the second connecting platform and the third connecting platform.

[0013] The inner walls of the first flange and the second flange are provided with threads.

[0014] The cross section of the connecting flange is in an I-shape, the upper portion of the connecting flange is connected to the protective sleeve via bolts, and the lower portion of the connecting flange is connected to the anti-bending pipe via bolts.

[0015] The anti-bending pipe is a three-section anti-bending pipe, wherein the section with the largest diameter is close to the connecting flange, the end with the smallest diameter is far away from the connecting flange, and the diameter of the middle part of the anti-bending pipe gradually changes from large to small.

[0016] The anti-bending pipe is made of polyurethane material.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects: a detachable protective cover is adopted, which is convenient for installation, disassembly and maintenance; an anti-bending pipe is provided to prevent the submarine cable from excessively bending under a large bending moment, thereby increasing the service life of the submarine cable; the protective cover and the anti-bending pipe are connected by a connecting flange to improve the overall sealing performance; epoxy adhesive is poured into the protective cover to enhance the sealing performance of the submarine cable armor anchoring device, effectively preventing seawater from entering the interior of the conical protective cover to corrode the first armor steel wire layer and the second armor steel wire layer, thereby improving the durability of the submarine cable, making the first armor steel wire layer and the second armor steel wire layer more tightly fixed to the armor structure, and improving the anchoring performance of the submarine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0020] Figure 3 This is a schematic structural diagram of the protective cover of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the armored structure of the utility model.

[0022] Figure 5 It is a structure schematic view of the first flange of the utility model.

[0023] Figure 6 It is a structure schematic view of the connecting flange of the utility model.

[0024] Figure 7 It is a structure schematic view of the connecting structure between the armored structure and the grouting cover plate 1 of the utility model. DETAILED DESCRIPTION

[0025] In order to make the skilled in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model is described below in combination with specific examples, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar functional elements throughout, but it should be understood that the drawings are only for illustrative description, and cannot be understood as limiting the utility model; in order to better illustrate the embodiments, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the positional relationship described in the drawings is only for illustrative description, and cannot be understood as limiting the utility model.

[0026] The utility model is further described below in combination with the drawings and examples, but is not as the basis for limiting the utility model.

[0027] The utility model provides a kind of armored structure anchoring device of submarine cable, including protective sleeve 2, armored structure is equipped in protective sleeve 2, one end of protective sleeve 2 is sealed by grouting cover plate 1, the other end of protective sleeve 2 is connected with anti-bending pipe 5 by connecting flange 4, anti-bending pipe 5 and protective sleeve 2 are equipped with through hole for submarine cable, protective sleeve 2 includes the two protective covers 21 of symmetrical arrangement, one side of two protective covers 21 is connected by hinge 24, the other side of two protective covers 21 is fixed by bolt.

[0028] End portion is fixed in the position of larger bending moment and installs anti-bending pipe 5, equivalent to add certain cross-section bending stiffness on submarine cable, so that it will not produce too large bending.

[0029] Protective sleeve 2 is circular truncated cone, and the diameter of one end of protective sleeve 2 provided with grouting cover plate 1 is larger.

[0030] Protective sleeve 2 realizes left and right two protective cover 21 partial rotation closure by hinge 24, and the bolt fixation of other side makes the installation and dismounting of protective sleeve 2 more simple, and it is convenient to maintain.

[0031] Protective sleeve 2 is equipped with grouting hole 22 and outlet hole 23, and epoxy adhesive is grouted in protective sleeve 2.

[0032] In this embodiment, the epoxy adhesive uses an epoxy resin adhesive. Epoxy resin materials have high bonding strength and good stability, which improves the sealing and integrity of the anchoring device. This effectively prevents seawater from entering the conical protective cover and corroding the first and second armored steel wire layers 61, 62, thereby improving the durability of the submarine cable. The application of glue further secures the first and second armored steel wire layers 61, 62 to the armor structure, improving the anchoring performance of the submarine cable.

[0033] Use pressure injection to first seal the other through holes of the protective cover 2 and confirm that there is no air leakage. Connect the grouting machine to the grouting hole 22 and grout from bottom to top until slurry appears in the slurry outlet 23, then stop pressurizing and seal the through hole.

[0034] The armor structure includes a first flange 31 and a second flange 32. The second flange 32 is sleeved in the first flange 31. A first armor steel wire layer 61 is provided between the first flange 31 and the second flange 32. A second armor steel wire layer 62 is provided close to the inner wall of the second flange 32. The upper parts of the first armor steel wire layer 61 and the second armor steel wire layer 62 are bent outward.

[0035] like Figure 1 and Figure 2 The submarine cable 6 shown has its outer sheath stripped off after passing through the first flange 31, exposing the armored steel wire layer.

[0036] The main bodies of the first flange 31 and the second flange 32 are both truncated cone-shaped.

[0037] The use of the truncated cone-shaped first flange 31 and the second flange 32 instead of the metal pressure plate to anchor the armor wire makes the structure easy to install and repair. The truncated cone shape can increase the contact area between the first armor wire layer 61 and the second armor wire layer 62.

[0038] A first connecting platform 311 is provided at one end of the first flange 31 facing the connecting flange 4. The diameter of the first connecting platform 311 is larger than the diameter of the through hole. The first flange 31 is connected to the connecting flange 4 via the first connecting platform 311 and bolts.

[0039] The first flange 31 and the second flange 32 are respectively provided with a second connecting platform 312 and a third connecting platform 322 at one end away from the connecting flange 4 . The first flange 31 and the second flange 32 are bolted to the grouting cover plate 1 via the second connecting platform 312 and the third connecting platform 322 .

[0040] The inner walls of the first flange 31 and the second flange 32 are provided with threads to increase the friction between the first flange 31, the second flange 32 and the first armored steel wire layer 61, the second armored steel wire layer 62, which helps to improve the anchoring performance of the submarine cable.

[0041] The cross section of the connecting flange 4 is in an I-shape. The upper portion of the connecting flange 4 is connected to the protective sleeve 2 via bolts, and the lower portion of the connecting flange 4 is connected to the anti-bending pipe 5 via bolts.

[0042] During installation, a hydraulic cylinder is used to tighten the first flange 31 and the second flange 32, respectively pressing the first armored steel wire layer 61 and the second armored steel wire layer 62 to generate sufficient pressure, and the grouting cover plate 1, the first flange 31, and the second flange 32 are connected and fixed by pre-tightening bolts to generate sufficient pre-tightening force.

[0043] The anti-bending pipe 5 is a three-section anti-bending pipe. The section with the largest diameter is close to the connecting flange 4, and the end with the smallest diameter is far away from the connecting flange 4. The diameter of the middle part of the anti-bending pipe 5 gradually changes from large to small.

[0044] In this embodiment, the anti-bending tube 5 is made of polyurethane material, which has good tensile strength and wear resistance. It increases the cross-sectional bending stiffness at the fixed end of the submarine cable with a larger bend, thereby avoiding damage due to excessive bending.

[0045] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the submarine cable armor structure anchoring device of the present invention, and can produce the positive effects recorded in the present invention.

[0046] It should be noted that the terms "including" and "having" in the specification and claims of the present invention and the above-mentioned drawings, as well as any variations thereof, are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two mechanisms, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0047] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," "right," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the description of this utility model. They do not indicate or imply that the mechanisms or components referred to must have, be constructed, or operate in a specific orientation and, therefore, should not be construed as limitations on this utility model. The terms "first" and "second" are used solely for brevity of description and do not indicate or imply relative importance.

[0048] Moreover, in practicing the claims of the present application, those skilled in the art can understand and affect the changes to the disclosed embodiments through the study of the drawings, the disclosures and the appended claims. In addition, in the claims, the specification, and the like, the words "comprise", "contain", and the like do not exclude other elements or steps, and the singular does not exclude the plural.

[0049] The above are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any equivalent changes and modifications made in accordance with the present application are all covered by the scope of the claims of the present application, and will not be repeated here.

Claims

1. A subsea cable armouring structure anchoring device, characterised in that, The invention comprises a protective sleeve (2), wherein an armored structure is provided in the protective sleeve (2), one end of the protective sleeve (2) is sealed by a grouting cover plate (1), and the other end of the protective sleeve (2) is connected to an anti-bending pipe (5) via a connecting flange (4), and through holes for the submarine cable to pass through are provided in the anti-bending pipe (5) and the protective sleeve (2), and the protective sleeve (2) is truncated cone-shaped, and the end of the protective sleeve (2) where the grouting cover plate (1) is provided has a larger diameter.

2. A sea cable armour structure anchoring device as claimed in claim 1, characterised in that, The protective cover (2) comprises two symmetrically arranged protective covers (21), one side of the two protective covers (21) is connected via a hinge (24), and the other side of the two protective covers (21) is fixed via bolts.

3. A sea cable armour structure anchoring device as claimed in claim 1, characterised in that, The protective sleeve (2) is provided with a grouting hole (22) and a grouting hole (23), and the protective sleeve (2) is filled with an epoxy adhesive.

4. A sea cable armour structure anchoring device as claimed in claim 1, characterised in that, The armor structure comprises a first flange (31) and a second flange (32), wherein the second flange (32) is sleeved in the first flange (31), a first armor steel wire layer (61) is provided between the first flange (31) and the second flange (32), a second armor steel wire layer (62) is provided close to the inner wall of the second flange (32), and the upper parts of the first armor steel wire layer (61) and the second armor steel wire layer (62) are bent outward.

5. A sea cable armour structure anchoring device as claimed in claim 4, characterised in that, The main bodies of the first flange (31) and the second flange (32) are both truncated cone-shaped.

6. A sea cable armour structure anchoring device as claimed in claim 4, characterised in that, A first connecting platform (311) is provided at one end of the first flange (31) facing the connecting flange (4); the diameter of the first connecting platform (311) is larger than the diameter of the through hole; the first flange (31) is connected to the connecting flange (4) via the first connecting platform (311) and bolts; The first flange (31) and the second flange (32) are respectively provided with a second connecting platform (312) and a third connecting platform (322) at one end away from the connecting flange (4), and the first flange (31) and the second flange (32) are bolted to the grouting cover plate (1) via the second connecting platform (312) and the third connecting platform (322).

7. A sea cable armour structure anchoring device as claimed in claim 4, characterised in that, The inner walls of the first flange (31) and the second flange (32) are provided with threads.

8. A sea cable armour structure anchoring device as claimed in claim 1, characterised in that, The cross section of the connecting flange (4) is in the shape of an "I" character. The upper portion of the connecting flange (4) is connected to the protective sleeve (2) via bolts, and the lower portion of the connecting flange (4) is connected to the anti-bending pipe (5) via bolts.

9. A sea cable armour structure anchoring device as claimed in claim 1, characterised in that, The anti-bending pipe (5) is a three-section anti-bending pipe, wherein the section with the largest diameter of the anti-bending pipe (5) is close to the connecting flange (4), and the end with the smallest diameter of the anti-bending pipe (5) is away from the connecting flange (4), and the diameter of the middle section of the anti-bending pipe (5) gradually changes from large to small.

10. A sea cable armour structure anchoring device as claimed in claim 1, characterised in that, The anti-bending pipe (5) is made of polyurethane material.

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