Multi-wing-plate shared mooring anchor foundation suitable for wave energy device

Abstract

The utility model discloses a multi-wing-plate shared mooring anchor foundation suitable for a wave energy device, and relates to the technical field of ocean engineering, the multi-wing-plate shared mooring anchor foundation comprises an anchor cover located on the upper portion, a sleeve in the middle and a shared anchor foundation on the lower portion, the anchor cover comprises a circular plate, a connecting rod arranged on the top face of the circular plate and a cylinder arranged on the bottom face of the circular plate, and the cylinder is sleeved with the sleeve. The sleeve is connected with the anchor cover through a chain, the shared anchor foundation is a barrel with two open ends, a wing plate is arranged on the outer wall of the barrel in the axial direction, an inserting groove matched with the wing plate is formed in the lower portion of the sleeve, the sleeve is sleeved with the barrel, and a plurality of anchor eye connecting anchor chains are arranged on the outer wall of the barrel to form an array group shared anchoring system. After the shared mooring anchor foundation penetrates into a seabed by a certain depth, the anchor cover and the sleeve are lifted and removed, the shared anchor foundation is embedded in the seabed, the anchor cover and the shared anchor foundation are both installed in the sleeve, vertical penetration and lifting can be better achieved, the anchor cover and the sleeve are connected through the chain, internal suction force can be released during lifting, and the anchor cover and the sleeve are connected through the chain. And the dismounting difficulty is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ocean engineering, in particular to a multi-wing shared mooring anchor foundation applicable to wave energy devices. Background Technique

[0002] At present, China's energy development is shifting from land to the ocean and from shallow sea to deep sea. The development of floating offshore engineering facilities is becoming increasingly rapid. Ensuring the safe service of ocean foundations is one of the key issues faced by deep-sea engineering and energy development.

[0003] Therefore, it is urgent to research and develop a shared mooring anchor foundation that can minimize the impact of wind, waves and currents on the ocean shared anchor foundation, prevent the foundation from deforming and failing, and ensure its safe service. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a multi-wing shared mooring anchor foundation applicable to wave energy devices.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a multi-wing shared mooring anchor foundation applicable to wave energy devices, which includes an anchor cover at the upper part, a sleeve in the middle and a shared anchor foundation at the lower part. The anchor cover includes a circular plate, a connecting rod arranged on the top surface of the circular plate and a column body arranged on the bottom surface of the circular plate. The column body is sleeved into the sleeve. The sleeve is connected with the anchor cover through a chain. The shared anchor foundation is a cylinder with both ends open. Wing plates are arranged along the axial direction on the outer wall of the cylinder. Slots matching with the wing plates are opened at the lower part of the sleeve. The cylinder is sleeved into the sleeve. A plurality of anchor eyes are arranged on the outer wall of the cylinder to connect anchor chains to form an array group shared mooring system.

[0007] Further, the inner diameter of the sleeve is slightly larger than the outer diameter of the column body. The length of the sleeve meets the requirements for the anchor cover and the shared anchor foundation to be sleeved in.

[0008] Further, the axial length of the wing plate is not greater than the length of the cylinder. The length of the slot at the lower part of the sleeve is not greater than the length of the wing plate.

[0009] Further, annular stiffening ribs and axial stiffening ribs are arranged on the inner wall of the cylinder.

[0010] Further, the number of the anchor eyes is not limited. Slots for the anchor eyes to be inserted are arranged at the lower part of the sleeve.

[0011] Further, the anchor cover, the chain, the sleeve and the shared anchor foundation are all made of corrosion-resistant materials, such as high-strength low-alloy steel, nickel alloy, etc.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. After the shared mooring anchor foundation of the present utility model penetrates into the seabed to a certain depth, lift and remove the anchor cover and the sleeve, and bury the shared anchor foundation on the seabed to achieve the offshore installation of the anchor foundation. The upper anchor cover and the lower shared anchor foundation are both installed in the middle sleeve, and the anchor cover and the sleeve are connected by a chain, which can better achieve vertical penetration and lifting.

[0014] 2. Increase the wing plates on the shared anchor foundation to improve the vertical bearing capacity of the shared anchor foundation.

[0015] 3. By setting annular stiffeners and axial stiffeners on the shared anchor foundation, on the one hand, it can provide additional vertical stress area to increase the vertical bearing capacity of the shared anchor foundation, and on the other hand, it can increase the stiffness of the shared anchor foundation to better resist the stress deformation of the anchor body.

[0016] 4. The installation of the shared mooring anchor foundation is convenient. The anchor cover and the sleeve are connected by a chain. When disassembling, the internal suction force is released, which can effectively reduce the installation and disassembly difficulty caused by the large water depth in deep sea, and has a wide range of promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the shared mooring anchor foundation of the present utility model;

[0018] Figure 2 is a sectional view of the shared mooring anchor foundation of the present utility model;

[0019] Figure 3 is a three-dimensional view of the upper anchor cover;

[0020] Figure 4 is a front view of the middle sleeve

[0021] Figure 5 is a top view of the middle sleeve;

[0022] Figure 6 is a perspective view of the lower shared anchor foundation;

[0023] Figure 7 is a top view of the lower shared anchor foundation;

[0024] Figure 8 is a front sectional view of the lower shared anchor foundation;

[0025] Figure 9 is a sectional perspective view of the lower shared anchor foundation;

[0026] Figure 10 is an array group shared mooring system.

[0027] In the figure:

[0028] 1 - Anchor cover, 2 - Sleeve, 3 - Shared anchor foundation, 4 - Chain, 11 - Circular plate, 12 - Connecting rod, 13 - Cylinder, 14 - First chain connection point, 21 - Slot, 22 - Second chain connection point, 23 - Groove, 31 - Cylindrical body, 32 - Wing plate, 33 - Anchor eye, 34 - Annular stiffener, 35 - Axial stiffener. Detailed implementation mode

[0029] The following further explains the structures involved in the present invention or the technical terms used therein. These explanations are only examples to illustrate how the present invention is implemented and shall not constitute any limitation to the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left" and "right" are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, terms such as "first" and "second" are only used for descriptive purposes and shall not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a direct connection or an indirect connection through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] As Figure 1-9 shown, this embodiment introduces a multi-wing plate shared mooring anchor foundation applicable to wave energy devices, including an anchor cover 1 at the upper part, a sleeve 2 in the middle, and a shared anchor foundation 3 at the lower part. The anchor cover 1 includes a circular plate 11, a connecting rod 12 provided on the top surface of the circular plate 11, and a cylinder 13 provided on the bottom surface of the circular plate 11. The cylinder 13 is sleeved into the sleeve 2, and the sleeve 2 is connected to the anchor cover 1 through a chain 4. The shared anchor foundation 3 is a cylindrical body 31 with both ends open. The cylindrical body 31 is sleeved into the sleeve 2. Wing plates 32 are arranged along the axial direction on the outer wall of the cylindrical body 31. Slots 21 matching the wing plates are opened at the lower part of the sleeve 2. A plurality of anchor eyes 33 are arranged on the outer wall of the cylindrical body 31 to connect anchor chains to form an array group shared mooring system.

[0033] The shared mooring anchor foundation of the present utility model is penetrated into the seabed through the connecting rod 12. After the whole is pressed into the seabed to a certain burial depth, the anchor cover 1 and the sleeve 2 are lifted and removed, and the shared anchor foundation 3 is buried on the seabed, realizing the installation of the shared anchor foundation 3 at sea. The upper anchor cover 1 and the lower shared anchor foundation 3 are both installed in the middle sleeve 2, which can better achieve vertical penetration and lifting. The anchor cover 1 and the sleeve 2 are connected by a chain 4. When lifting, the internal suction can be released, effectively reducing the difficulty of demolition.

[0034] As Figure 2 shown, the inner diameter of the sleeve 2 is slightly larger than the outer diameter of the column 13, which facilitates the column 13 to be sleeved into the sleeve 2 from the top. The anchor cover 1 is sleeved into the sleeve 2 to prevent the shared mooring anchor foundation from tipping over during the installation penetration stage.

[0035] As Figure 3 、 4 and Figure 5 shown, three first chain connection points 14 are arranged on the bottom surface of the circular plate 11 and are evenly distributed circumferentially along the column 13. Three second chain connection points 22 are arranged on the outer wall of the sleeve 2 for connecting the three chains 4. When the upper anchor cover 1 is pulled out, the middle sleeve 2 can be pulled out together through the chain 4. The first chain connection point 14 and the second chain connection point 22 are on the same vertical line for the vertical suspension of the chain 4. The chain 4 is used to connect the anchor cover 1 and the sleeve 2 to keep it vertical, which can ensure that the force of the sleeve 2 on the anchor cover 1 is vertical, so that there is no out-of-plane oblique tension, and the connection force can be maximized.

[0036] As Figure 2 shown, the diameter of the circular plate 11 is larger than the outer diameter of the sleeve 2 so that the chain 4 can be directly opposite to the second chain connection point 22 to keep it vertically suspended.

[0037] As Figure 2 shown, the length of the wing plate 32 is the same as the length of the cylinder body 31. Keeping the length of the wing plate 32 consistent with the cylinder body 31 is to maximize the length of the wing plate 32 in order to obtain a larger vertical stress area. The larger the vertical stress area, the greater its bearing capacity. The specific aspect ratio of the length and width of the wing plate 32 is determined by force analysis through experiments or vertical simulations.

[0038] As Figure 1 shown, the length of the slot 21 at the lower part of the sleeve 2 is less than the length of the wing plate 32, that is, the wing plate 32 is not fully inserted into the slot 21 and part of it is exposed.

[0039] As Figure 6 、 7 shown, six wing plates 32 are evenly distributed on the outer wall of the cylinder body 31.

[0040] As Figure 8 、 9As shown in the figure, two sets of annular stiffeners 34 arranged at intervals and four sets of axial stiffeners 35 arranged evenly are provided on the inner wall of the cylinder body 31. On the one hand, it can provide additional vertical stress area to increase the vertical bearing capacity of the shared anchor foundation 3, and on the other hand, it can increase the stiffness of the shared anchor foundation 3 to better resist the stress deformation of the anchor body.

[0041] Since the shared anchor foundation 3 finally remaining in the soil relies on the external wing plates 32 to provide vertical bearing capacity and is strengthened by the annular stiffeners 34 and axial stiffeners 35, in order to ensure its bearing performance in the initial service period, a certain placement period needs to be set according to actual conditions such as soil strength during installation.

[0042] As Figure 1 shown, a slot 23 matching the anchor eye 33 is provided at the lower part of the sleeve 2.

[0043] As Figure 10 shown, three anchor eyes 33 are evenly arranged circumferentially on the outer wall of the shared anchor foundation 3, and a shared system is formed by three anchor chains that are 120° to each other. The other ends of the anchor chains are connected to a floating platform or a facility that requires an anchored foundation.

[0044] The anchor cover 1, the chain 4, the sleeve 2, and the shared anchor foundation 3 are all made of corrosion-resistant materials, such as high-strength low-alloy steel, nickel alloy, etc., to improve the service life and reduce corrosion.

[0045] The working process of the present utility model: The anchor cover 1 is sleeved into the sleeve 2 from the top, and the anchor cover 1 and the sleeve 2 are connected by the chain 4. The shared anchor foundation 3 is sleeved into the sleeve 2 from the bottom, and the wing plates 32 on the shared anchor foundation 3 are inserted into the slots 21 at the lower part of the sleeve 2, and the anchor eyes 33 are inserted into the slots 24. The shared mooring anchor foundation is installed. After the whole is penetrated into the seabed to a certain depth through the connecting rod 12, the anchor cover 1 and the sleeve 2 are lifted and removed, and the shared anchor foundation 3 is buried on the seabed to realize the installation of the shared anchor foundation at sea.

[0046] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-wing shared mooring anchor foundation suitable for a wave energy device, characterized in that: It includes an anchor cover at the top, a sleeve in the middle and a shared anchor foundation at the bottom, the anchor cover includes a circular plate, a connecting rod arranged on the top surface of the circular plate and a column arranged on the bottom surface of the circular plate, the column is inserted into the sleeve, and the sleeve is connected to the anchor cover through a chain, the shared anchor foundation is a cylinder with open ends, a wing plate is axially arranged on the outer wall of the cylinder, a slot matching the wing plate is provided at the lower part of the sleeve, the cylinder is inserted into the sleeve, and a plurality of anchor eyes are arranged on the outer wall of the cylinder to connect the anchor chain to form an array group shared anchoring system.

2. The multi-wing shared mooring anchor foundation suitable for a wave energy device according to claim 1, characterized in that: The inner diameter of the sleeve is greater than the outer diameter of the cylinder.

3. The multi-wing shared mooring anchor foundation suitable for a wave energy device according to claim 1, characterized in that: The inner wall of the cylinder is provided with an annular stiffening rib and an axial stiffening rib.

4. The multi-wing shared mooring anchor foundation suitable for a wave energy device according to claim 1, characterized in that: The lower part of the sleeve is provided with a slot for inserting the anchor eye.

5. The multi-wing shared mooring anchor foundation suitable for a wave energy device according to claim 1, characterized in that: The anchor cover, chain, sleeve and shared anchor foundation are all made of corrosion-resistant materials.

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