Anti-scour protection structure suitable for offshore wind cable
The swing of offshore wind cables is restricted by the limit frame and fixed rod structure, which solves the problem of frequent bending of the connection ends of offshore wind cables and wind turbines, extends the service life and protects the seabed.
Patent Information
- Application Number
- CN202422464696.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Offshore wind cables tend to shake when washed by seawater, causing frequent bending at the connection ends to wind turbines, shortening their service life.
It adopts a limit frame and fixed rod structure. The limit frame is made of relatively soft material, and the fixed rod is made of hard metal. It is connected to the wind turbine through a mounting plate. The fixed rod is inserted into the seabed to limit the cable shaking and prevent excessive bending of the connection end.
Effectively reduce cable shaking, extend service life, avoid connection end breakage, and protect the seabed from damage.
Smart Images
Figure CN223334383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-scour protection structure, in particular to an anti-scour protection structure suitable for offshore wind cables. Background Art
[0002] Offshore wind cables refer to cables used in offshore wind farms, which are mainly used to transmit electric energy. These cables are specially designed and laid in underwater environments for transmitting electric energy. Their application scenarios are mainly concentrated in offshore wind farms and marine oil and gas projects. Compared with onshore wind power, offshore wind power has richer wind energy resources, longer power generation time, and does not occupy precious land resources. In addition, coastal areas have a large demand for electricity and a relatively complete power grid structure, making offshore wind power easy to consume locally.
[0003] After laying offshore wind cables in shallow waters, they are often washed by waves. In order to reduce the loss of offshore wind cables, anti-scouring measures are needed for offshore wind cables. There are two common anti-scouring measures: one is to cover the surface of the offshore wind cable with an anti-scouring coating; the other is to cover the surface of the offshore wind cable with a layer of protective material. Both of the above methods can reduce the scouring of offshore wind cables by seawater, but there are still deficiencies in actual use. For example, when the offshore wind cable is washed by seawater, the offshore wind cable will shake, and the shaking amplitude is too large, which can easily cause the connection end of the offshore wind cable and the wind turbine to bend frequently and break, shortening the service life of the offshore wind cable.
[0004] Therefore, there is a particular need for an anti-scour protection structure suitable for offshore wind cables to solve the problems existing in the prior art. Utility Model Content
[0005] In order to overcome the shortcomings of existing offshore wind cables that when they are washed by sea water, the offshore wind cables will shake, and the shaking amplitude is too large, which may easily lead to frequent bending and breakage of the connection ends between the offshore wind cables and wind turbines, thereby shortening the service life of the offshore wind cables, the utility model provides an anti-scouring protection structure suitable for offshore wind cables.
[0006] The utility model is achieved through the following technical approaches: a scour prevention protection structure suitable for offshore wind cables, including a wind turbine and a cable, a cable connected between the lower ends of two wind turbines, and also including a mounting plate and a limit frame, the lower ends of the wind turbines are fixedly connected to symmetrically distributed mounting plates, the limit frame is installed between the two mounting plates that are longitudinally aligned, and the cable is located inside the limit frame.
[0007] It is further explained that the cable surface is provided with an anti-scour coating.
[0008] It is further explained that the limit frame is made of a relatively soft material.
[0009] Further description, it also includes a fixing rod, and the lower part of the limiting frame is fixedly connected to the fixing rods which are symmetrically distributed.
[0010] Further description: a cone is provided at the lower end of the fixing rod.
[0011] Further description: the fixing rod is made of hard metal.
[0012] From the above description of the structure of the utility model, it can be seen that the design starting point, concept and advantages of the utility model are: by setting a mounting plate and a limit frame, the limit frame plays a limiting role, limiting the connection end of the cable and the wind turbine, thereby avoiding excessive shaking of the cable and frequent bending of the connection end, extending the service life of the cable, and effectively solving the problem that the connection end of the existing offshore wind cable is prone to breakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0014] Figure 2 It is a three-dimensional structural diagram of the components such as the mounting plate, the limiting frame and the fixing rod of the utility model.
[0015] Markings in the accompanying drawings: 1. wind turbine, 2. cable, 4. mounting plate, 5. limiting frame, 6. fixing rod. DETAILED DESCRIPTION
[0016] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the present invention are shown. However, the present invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and will fully convey the scope of the invention to those skilled in the art.
[0017] Example: An anti-scour protection structure suitable for offshore wind power cables, see Figure 1 and Figure 2 As shown, it includes a wind turbine 1 and a cable 2, and a cable 2 is connected between the outer parts of the lower ends of the two wind turbines 1. The surface of the cable 2 is provided with an anti-scour coating, and the distance between the cable 2 and the bottom surface of the wind turbine 1 is approximately 15m. It also includes a mounting plate 4, a limit frame 5 and a fixing rod 6. The lower end of the wind turbine 1 is connected to the symmetrically distributed mounting plates 4 by welding, and the two mounting plates 4 aligned longitudinally are connected to the limit frame 5 by bolts. The cable 2 is located inside the limit frame 5, and the limit frame 5 is made of a relatively soft material. The lower part of the limit frame 5 is connected to the symmetrically distributed fixing rods 6 by welding. The length of the fixing rod 6 is 2-3m, and the lower end of the fixing rod 6 is provided with a cone with a pointed corner facing downward, and the fixing rod 6 is made of hard metal.
[0018] First, the staff inserted the wind turbine 1 into the ground on the coast, and then inserted the fixing rod 6 into the ground on the coast to reinforce the wind turbine 1. When the sea water hits the cable 2 and shakes it, the limit frame 5 plays a limiting role, limiting the connection end of the cable 2 and the wind turbine 1, thereby preventing the cable 2 from shaking too much and causing the connection end to bend frequently, extending the service life of the cable 2, and preventing the cable 2 from repeatedly shaking and damaging the seabed, thereby protecting the cable 2 from crossing the seabed scouring section.
[0019] While the present invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.
Claims
1. An anti-scour protection structure suitable for offshore wind power cables, comprising a wind turbine (1) and a cable (2), wherein the lower ends of the two wind turbines (1) are connected with the cable (2), characterized in that: It also includes a mounting plate (4) and a limiting frame (5), wherein the lower end of the wind turbine (1) is fixedly connected to the symmetrically distributed mounting plates (4), and the limiting frame (5) is installed between two mounting plates (4) that are longitudinally aligned.
2. The anti-scour protection structure for offshore wind power cables according to claim 1, characterized in that: The surface of the cable (2) is provided with an anti-scouring coating.
3. The anti-scour protection structure for offshore wind power cables according to claim 2, characterized in that: The limiting frame (5) is made of relatively soft material.
4. The anti-scour protection structure for offshore wind power cables according to claim 3, characterized in that: It also includes fixing rods (6), and the lower part of the limiting frame (5) is fixedly connected to the fixing rods (6) which are symmetrically distributed.
5. The anti-scour protection structure for offshore wind power cables according to claim 4, characterized in that: The lower end of the fixing rod (6) is provided with a cone.
6. The anti-scour protection structure for offshore wind power cables according to claim 5, characterized in that: The fixing rod (6) is made of hard metal.