Mooring cable and floating foundation

Abstract

The utility model relates to the technical field of offshore wind power, and discloses a mooring rope and a floating foundation, the mooring rope comprises a plurality of sub-mooring ropes, the plurality of sub-mooring ropes are arranged in parallel, and each sub-mooring rope comprises a plurality of rope filaments made of high polymer materials; the connectors are arranged at the two ends of the multiple sub-cables respectively, a plurality of connecting structures are formed on each connector, and the two ends of each sub-cable are connected with the connecting structures of the corresponding connectors respectively. The mooring rope comprises the multiple sub-mooring ropes and the pair of connectors arranged at the two ends of the sub-mooring ropes respectively, the sub-mooring ropes can equally divide loads, therefore, the creep quantity of rope wires is more balanced, abrasion caused by uneven stress of the rope wires is reduced, and the service life of the mooring rope can be prolonged. According to the mooring rope, it is guaranteed that the mooring rope is not prone to corrosion and light in mass, meanwhile, the creep deformation problem of a high polymer material is avoided, and the mooring rope has the advantages of a metal mooring rope and the advantages of a high polymer mooring rope.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power, in particular to a mooring cable and a floating foundation. Background Art

[0002] As the offshore wind power industry gradually develops into deep sea, floating foundation will become the main structural form of wind turbine foundation. The floating foundation is connected to one end of the cable and the other end is connected to the anchor pile fixed on the mud surface. At present, the main materials of cables are steel and polymer materials. Steel has corrosion problems and high density, which makes construction inconvenient; polymer materials have creep problems. The above problems greatly reduce the service life of the cable. Utility Model Content

[0003] In view of this, the utility model provides a mooring cable and a floating foundation to solve the problem of low service life of the mooring cable in the related art.

[0004] In a first aspect, the utility model provides a mooring rope, comprising:

[0005] A plurality of sub-cables, the plurality of sub-cables are arranged in parallel, and each sub-cable comprises a plurality of rope filaments made of polymer material;

[0006] A pair of joints are arranged at both ends of the plurality of sub-cables, and a plurality of connection structures are formed on each joint. The two ends of the sub-cables are respectively connected to a connection structure of a joint.

[0007] Beneficial effect: As the mooring cable is tightened and shaken, the cable wires will be subjected to uneven force, especially the innermost cable wires will be subjected to greater extrusion pressure, which is different from the creep amount of the outer cable wires, resulting in aggravated uneven force on the cable and shortening the service life of the mooring cable. The mooring cable of the utility model embodiment includes a plurality of sub-cables and a pair of connectors arranged at both ends of the sub-cables. Through such an arrangement, the plurality of sub-cables can evenly distribute the load, and the load distributed to each sub-cable can be evenly distributed by the cable wires of the sub-cables, thereby making the creep amount of the cable wires more balanced, reducing the wear caused by uneven force on the cable wires, and extending the service life of the mooring cable.

[0008] Therefore, the mooring cables in the embodiments of the present application are mainly made of polymer materials with low density and low corrosion resistance, and the load is distributed through multiple sub-cables, ensuring that the mooring cables are not easily corroded and light in weight while avoiding the creep problem of polymer materials, so that the mooring cables have the advantages of both metal cables and polymer cables.

[0009] In an optional embodiment, rope loops are formed at both ends of the sub-cable, and the joint includes a main body and a connecting structure. An avoidance opening is formed on the main body, and the connecting structure includes a connecting shaft. The connecting shaft is arranged in the avoidance opening and is connected to the main body at both ends. Each rope loop is sleeved on a connecting shaft, and multiple connecting shafts are arranged at intervals along a specified direction, and an angle is formed between the specified direction and the length direction of the connecting shaft.

[0010] Beneficial effects: Through such an arrangement, a plurality of sub-cables can be evenly spaced and distributed, so as to evenly distribute the load among the plurality of sub-cables and reduce the friction among the plurality of sub-cables.

[0011] During the use of the mooring rope, the outermost rope wire is in direct contact with the joint. When the sub-cable is tightened and shaken, the innermost rope wire receives a greater extrusion force, which is different from the creep amount of the outermost rope wire. The diameter of the rope loop at the end of the sub-cable of the mooring rope of the embodiment of the present application can be set smaller, thereby reducing the stress concentration of the innermost rope wire, thereby reducing the uneven creep of the rope wire from the inside to the outside at the rope loop.

[0012] In an optional embodiment, the connecting shaft is rotatably arranged on the main body; or,

[0013] The connecting shaft is fixedly connected to the main body.

[0014] In an optional embodiment, the main body includes a first support column and a second support column arranged in parallel, two ends of the connecting shaft are respectively connected to the first support column and the second support column, and the avoidance is formed between two adjacent connecting shafts.

[0015] In an optional embodiment, the joint further comprises an anchoring end connected to one end of the joint body.

[0016] Beneficial effects: The anchoring end is used to connect an anchor pile or an anchoring device. The anchoring device refers to a device that needs to be anchored, such as a ship or a floating foundation.

[0017] In an optional embodiment, a first shackle is connected to one end of the main body, and the anchoring end includes a second shackle connected to the first shackle.

[0018] Beneficial effect: The second shackle of the first shackle is usually made of metal material, has certain strength and wear resistance, and can transmit greater force during operation.

[0019] In an optional embodiment, the mooring cable further includes a transition connection section, one end of which is connected to the main body, and the other end of which is connected to the anchoring end.

[0020] In an optional embodiment, the transition connection section includes a buffer structure, a quick-release structure or a movable connection structure.

[0021] Beneficial effect: When the transition connection section is selected as a movable connection structure, the movable connection structure can increase the degree of freedom between the connection between the anchor end and the joint to ensure that the connection node is isotropic and the force is balanced.

[0022] When the transition connection section is selected as a buffer structure, the buffer structure can reduce the instantaneous tension on the node and protect the connection node.

[0023] When the transition connection section is selected as a quick-release structure, it can be easily disassembled and replaced, which is convenient for later maintenance, inspection and replacement.

[0024] In an optional embodiment, the sub-cable further includes a rope body and a protective cover disposed outside the rope body.

[0025] Beneficial effect: The protective cover can reduce the physical friction between the cables to avoid module between the sub-cables, which leads to shortening the service life of the mooring cable.

[0026] In a second aspect, the utility model further provides a floating foundation, comprising:

[0027] Basic subject;

[0028] Anchor piles;

[0029] The mooring rope provided in the first aspect of the utility model is connected between the foundation body and the anchor pile.

[0030] Beneficial effect: The floating foundation of the second aspect of the utility model includes or uses the mooring cable of the first aspect of the utility model, and thus has its beneficial effect, namely, it is mainly made of polymer materials with low density and not easy to corrode, and the load is distributed through multiple sub-cables, thereby ensuring that the mooring cable is not easy to corrode and has a light weight while avoiding the creep problem of polymer materials, so that the mooring cable has the advantages of both metal cables and polymer cables, and the service life of the mooring cable is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a front view of a mooring rope according to an embodiment of the utility model;

[0033] Figure 2 A side view of a joint of a mooring rope according to an embodiment of the utility model;

[0034] Figure 3 A top view of a joint of a mooring rope according to an embodiment of the utility model;

[0035] Figure 4 A cross-sectional view of a joint of a mooring rope according to an embodiment of the utility model;

[0036] Figure 5 A joint and an anchoring end of a mooring rope according to an embodiment of the utility model;

[0037] Figure 6 for Figure 5 A schematic diagram of the joint and anchorage end of the mooring line shown at another angle;

[0038] Figure 7 A joint, a transition section and an anchoring end of a mooring rope according to an embodiment of the utility model;

[0039] Figure 8 The utility model is a sub-cable of a mooring rope according to an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 1. sub-cable; 101. rope loop; 102. protective cover;

[0042] 2. Joint; 201. Main body; 2011. First support column; 2012. Second support column; 202. Avoidance; 203. Connection structure;

[0043] 3. Anchor end;

[0044] 4. First shackle;

[0045] 5. Transition connection section. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0047] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0048] According to an embodiment of the utility model, on the one hand, a mooring rope is provided, comprising a plurality of sub-cables 1 and a pair of joints 2. The plurality of sub-cables 1 are arranged in parallel, and each sub-cable 1 comprises a plurality of rope filaments made of polymer materials. The pair of joints 2 are arranged at both ends of the plurality of sub-cables 1, and a plurality of connecting structures 203 are formed on each joint 2, and the two ends of the sub-cable 1 are respectively connected to a connecting structure 203 of a joint 2.

[0049] As the mooring cable is tightened and shaken, the cable wires will be subjected to uneven stress, especially the innermost cable wires will be subjected to greater extrusion pressure, which is different from the creep of the outer cable wires, resulting in aggravated uneven stress on the cable and shortening the service life of the mooring cable. The mooring cable of the utility model embodiment includes a plurality of sub-cables 1 and a pair of connectors 2 arranged at both ends of the sub-cables 1. Through such an arrangement, the plurality of sub-cables 1 can evenly distribute the load, and the load distributed to each sub-cable 1 can be evenly distributed by the cable wires of the sub-cable 1, thereby making the creep of the cable wires more balanced, reducing the wear caused by uneven stress on the cable wires, and extending the service life of the mooring cable.

[0050] Therefore, the mooring cable in the embodiment of the present application is mainly made of a polymer material with a low density and non-corrosive properties, and the load is distributed through multiple sub-cables 1, ensuring that the mooring cable is non-corrosive and lightweight while avoiding the creep problem of polymer materials, so that the mooring cable has the advantages of both metal cables and polymer cables 1.

[0051] In one embodiment, rope loops 101 are respectively formed at both ends of the sub-cable 1, and the joint 2 includes a main body 201 and a connecting structure 203. An avoidance opening 202 is formed on the main body 201. The connecting structure 203 includes a connecting shaft, which is arranged in the avoidance opening 202 and connected to the main body 201 at both ends. Each rope loop 101 is sleeved on a connecting shaft, and multiple connecting shafts are arranged at intervals along a specified direction, and an angle is formed between the specified direction and the length direction of the connecting shaft.

[0052] By such arrangement, the plurality of sub-cables 1 can be evenly spaced and distributed, so as to evenly distribute the load among the plurality of sub-cables 1 and reduce the friction among the plurality of sub-cables 1 .

[0053] During the use of the mooring rope, the outermost rope wire is in direct contact with the joint 2. When the sub-cable 1 is tightened and shaken, the innermost rope wire of the rope loop 101 receives a greater extrusion force, which is different from the creep amount of the outermost rope wire. The diameter of the rope loop 101 at the end of the sub-cable 1 of the mooring rope of the embodiment of the present application can be set smaller, so that the stress concentration of the innermost rope wire can be reduced, thereby reducing the uneven creep of the rope wire from the inside to the outside at the rope loop 101.

[0054] Among them, the rope is preferably made of, but not limited to, polymer materials such as polyethylene, polypropylene, polyester, and nylon.

[0055] It should be noted that in the embodiment of the present application, the number of sub-cables 1 is not limited. For example, Figure 1 As shown, the mooring rope may optionally include three sub-ropes, which are arranged parallel to each other.

[0056] In one embodiment, the designated direction is perpendicular to the length direction of the connecting axis. As an alternative embodiment, the designated direction forms an acute angle or an obtuse angle with the length direction of the connecting axis.

[0057] As a changeable implementation, the plurality of sub-cables 1 may be optionally distributed along the array. The plurality of sub-cables 1 may be optionally arranged parallel to each other. As a changeable implementation, the plurality of sub-cables 1 may be arranged crosswise to each other.

[0058] In one embodiment, the connecting shaft is rotatably disposed on the main body 201 ; or, the connecting shaft is fixedly connected to the main body 201 .

[0059] In one embodiment, Figures 2 to 4 As shown, the main body 201 includes a first support column 2011 and a second support column 2012 arranged in parallel, two ends of the connecting shaft are respectively connected to the first support column 2011 and the second support column 2012, and the avoidance opening 202 is formed between two adjacent connecting shafts.

[0060] In one embodiment, Figures 5 to 7 As shown, the joint 2 also includes an anchoring end 3, which is connected to one end of the joint body 201. The anchoring end 3 is used to connect to an anchor pile or an anchoring device. The anchoring device refers to a device that needs to be anchored, such as a ship or a floating foundation. The connection between the anchoring end 3 and the anchor pile or the anchoring device is preferably, but not limited to, welding or mechanical connection.

[0061] In one embodiment, one end of the body 201 is connected to a first shackle 4, and the anchoring end 3 includes a second shackle connected to the first shackle 4. The second shackle of the first shackle 4 is usually made of metal material, has certain strength and wear resistance, and can transmit greater force during operation.

[0062] As a convertible embodiment, the anchoring end 3 may also be selected as other mechanical structures that can be used to connect with the anchor pile, which is well known to those skilled in the art and will not be described in detail here.

[0063] In one embodiment, the mooring rope further includes a transition section 5 , one end of which is connected to the main body 201 , and the other end of which is connected to the anchoring end 3 .

[0064] In one embodiment, the transition section 5 may include a movable connection structure 203, which is preferably but not limited to a rope or a universal shaft, etc. The degree of freedom between the connection between the anchor end 3 and the joint 2 can be increased to ensure that the connection node is isotropic and the force is balanced.

[0065] In one embodiment, the transition connection section 5 includes a buffer structure, which is preferably but not limited to a spring or a damper, etc., which can reduce the instantaneous tension on the node and protect the connection node.

[0066] In one embodiment, the transition connection section 5 may also be a quick-release structure, such as a shackle, which can be easily disassembled and replaced, and is convenient for later maintenance, inspection and replacement.

[0067] It should be noted that the above-mentioned implementation is only an example of a preferred implementation of the transition connection section 5. Those skilled in the art can also configure the transition connection section 5 into other forms according to actual usage requirements to facilitate construction.

[0068] As an alternative implementation, the anchoring end may also be directly connected to the main body 201 of the joint 2.

[0069] In one embodiment, Figure 8 As shown, the sub-cable 1 also includes a rope body 201 and a protective cover 102 sleeved outside the rope body 201. The protective cover 102 can reduce the physical friction between the cables to avoid module between the sub-cables 1, resulting in shortening the service life of the mooring cable.

[0070] In the embodiments of the present application, the mooring cable is mainly used for connecting and fixing offshore ships or structures. Taking the mooring of offshore floating structures as an example, after the product is transported by the ship to the designated location, one end of the rope is connected to an anchoring device fixed to the mud surface, and the other end is connected to the floating structure. The connection process is completed by a diver or an underwater robot.

[0071] According to an embodiment of the present invention, on the other hand, a floating foundation is provided, comprising a foundation body 201, an anchor pile and the mooring rope involved in the first aspect of the present invention. The mooring rope is connected between the foundation body 201 and the anchor pile.

[0072] The floating foundation of the second aspect of the utility model includes or uses the mooring cable of the first aspect of the utility model, and thus has its beneficial effects, namely, it is mainly made of a polymer material with a relatively low density and not easy to corrode, and the load is distributed through a plurality of sub-cables 1, thereby ensuring that the mooring cable is not easy to corrode and has a relatively light weight while avoiding the creep problem of the polymer material, so that the mooring cable has the advantages of both the metal cable and the polymer cable 1, and the service life of the mooring cable is greatly improved.

[0073] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A mooring rope, characterized in that: include: A plurality of sub-cables (1), wherein the plurality of sub-cables (1) are arranged in parallel, and each of the sub-cables (1) comprises a plurality of rope filaments made of a polymer material; A pair of joints (2) are respectively arranged at the two ends of the plurality of sub-cables (1), and a plurality of connection structures (203) are respectively formed on each of the joints (2), and the two ends of the sub-cables (1) are respectively connected to a connection structure (203) of the joint (2).

2. The mooring rope according to claim 1, characterized in that: Rope loops (101) are respectively formed at both ends of the sub-cable (1), and the joint (2) comprises a main body (201) and a connecting structure (203). An escape opening (202) is formed on the main body (201), and the connecting structure (203) comprises a connecting shaft, which is arranged in the escape opening (202) and connected to the main body (201) at both ends. Each of the rope loops (101) is sleeved on one of the connecting shafts, and a plurality of the connecting shafts are arranged at intervals along a specified direction, and an angle is formed between the specified direction and the length direction of the connecting shaft.

3. The mooring rope according to claim 2, characterized in that: The connecting shaft is rotatably arranged on the main body (201); or, The connecting shaft is fixedly connected to the main body (201).

4. The mooring rope according to claim 2, characterized in that: The main body (201) comprises a first support column (2011) and a second support column (2012) arranged in parallel, the two ends of the connecting shaft are respectively connected to the first support column (2011) and the second support column (2012), and the avoidance opening (202) is formed between two adjacent connecting shafts.

5. The mooring rope according to claim 2, characterized in that: The joint (2) further comprises an anchoring end (3), wherein the anchoring end (3) is connected to one end of the main body (201).

6. The mooring rope according to claim 5, characterized in that One end of the main body (201) is connected to a first shackle (4), and the anchoring end (3) comprises a second shackle connected to the first shackle (4).

7. The mooring rope according to claim 6, characterized in that It also comprises a transition connection section (5), one end of which is connected to the main body (201), and the other end of which is connected to the anchoring end (3).

8. The mooring rope according to claim 7, characterized in that The transition connection section (5) comprises a buffer structure, a quick-release structure or a movable connection structure (203).

9. The mooring rope according to any one of claims 1 or 8, characterized in that The sub-cable (1) further comprises a rope body (201) and a protective cover (102) sleeved outside the rope body (201).

10. A floating foundation, characterized in that: include: Basic subject (201); Anchor piles; The mooring rope according to any one of claims 1 to 9, connected between the foundation body (201) and the anchor pile.

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