Cable threading protection structure for offshore wind power cathode protection device
By designing a cable threading protection structure for offshore wind power, the problems of durability and sealing effect of fireproof mud in marine environments are solved, and efficient sealing and corrosion resistance are achieved, adapting to complex environments and long-term use.
Patent Information
- Application Number
- CN202422180606.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In the prior art, fireproof mud has durability problems when used in marine environments, and after curing, it may cause looseness and fall off due to the swing of the cable, affecting the long-term sealing effect.
A cable threading protection structure for offshore wind power cathode protection device is designed, including cable body, anti-corrosion layer, cable casing and threading holes. The anti-corrosion layer consists of never-cured viscoelastic polymer and anti-corrosion belt. The cable casing is made of PE material, which can adapt to deformation of different environments and structures.
The structure is simple to construct and is suitable for complex and diverse perforated structures. It can improve the sealing and anti-corrosion performance of the equipment, adapt to harsh climatic conditions, have a long service life and reduce operation and maintenance costs.
Smart Images
Figure CN223024002U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable threading protection, in particular to a cable threading protection structure for a cathodic protection device of offshore wind power. Background Technique
[0002] The impressed current cathodic protection technology is an anti-corrosion measure that uses an external power supply to keep the potential of the basic steel pile at a negative potential. This technology can use an external power supply to make the structure the protected body, connect it with an external anode, control the inter-electrode potential of the protected conductor within the cathodic range, form an effective anti-corrosion protection layer, and maximize the adjustment and utilization of the electrical and mechanical properties of the protected conductor.
[0003] However, offshore wind power is in a very harsh corrosion environment such as high temperature, high humidity, high salinity and long sunshine. Equipment aging is a common problem faced by offshore wind turbines, and cable aging is one of the main problems of offshore wind power equipment failures. The currently commonly used anti-corrosion measure is fireproof putty protection. The fireproof putty has durability problems when used in the marine environment. The performance of the fireproof putty may decrease when it is in the marine environment for a long time. Moreover, after the fireproof putty is cured, it may be affected by the swinging of the cable, resulting in the loosening and falling off of the fireproof putty, which may affect its long-term sealing effect.
[0004] Therefore, the utility model provides a cable threading protection structure for a cathodic protection device of offshore wind power. Content of the Utility Model
[0005] The purpose of the utility model is to solve the defect that after the fireproof putty of the cable threading protection structure in the prior art is cured, it may be affected by the swinging of the cable, resulting in the loosening and falling off of the fireproof putty, which may affect its long-term sealing effect, and to propose a cable threading protection structure for a cathodic protection device of offshore wind power.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a cable threading protection structure for a cathodic protection device of offshore wind power, including a cable body, an anti-corrosion layer is arranged on the surface of the cable body, a cable sleeve is fixedly installed on the surface of the anti-corrosion layer, and a threading hole is fixedly installed on the surface of the cable sleeve.
[0007] The effects achieved by the cooperation of the above components are as follows: simple construction, time-saving and labor-saving, can cope with cables in different environments and different structures, is applicable to the complex and diverse perforation structures of offshore wind power, and can adapt to the deformation caused by temperature difference and the deformation of the basic environment at the bottom caused by severe climates such as strong typhoons, thereby improving the sealing and anti-corrosion performance of the equipment.
[0008] Preferably, the anti-corrosion layer is composed of anti-corrosion paste and anti-corrosion tape. The anti-corrosion paste is filled between the cable and the wire threading hole, and the anti-corrosion tape is wound on the anti-corrosion paste. The thickness of the anti-corrosion tape layer unit is 3 mm, and the width of the anti-corrosion tape unit is 10 cm. There is an overlap at the junction of two adjacent viscoelastic anti-corrosion tape layer units, and the width of the overlap is 3 cm - 5 cm. The anti-corrosion paste used in this solution is a non-curing viscoelastic polymer with unique cold flow characteristics, which can penetrate into irregular structures for filling and be shaped into a smooth appearance to achieve a complete protection effect. It has excellent resistance to weather aging, ultraviolet aging, and high and low temperature performance, and its performance is stable between -30°C and 180°C. Moreover, the service life of this structure is long, more than 2 years, thus reducing the later operation and maintenance costs.
[0009] Preferably, the cable sleeve is made of PE material.
[0010] The effects achieved by the above components are as follows: The cable sleeve made of PE material has high chemical stability, does not rust, does not age, and can adapt to harsh environments.
[0011] Preferably, the surface of the cable body is provided with eight clamping blocks, and a screw rod is rotatably inserted inside the clamping blocks. Every four of the eight screw rods form a group, and the arc surfaces of the two groups of screw rods are both threadedly connected with a positioning frame. Four fixing rods are fixedly inserted inside the positioning frame. Every two of the eight fixing rods form a group, and the arc surfaces of the two groups of fixing rods are both slidably sleeved with a connecting cylinder.
[0012] The effects achieved by the above components are as follows: The cable can be supported, thus facilitating the installation of the anti-corrosion layer between the cable body and the cable sleeve by the staff.
[0013] Preferably, elastic sleeves are fixedly sleeved on the surfaces of the four connecting cylinders.
[0014] The effects achieved by the above components are as follows: The elastic sleeves can assist the connecting cylinders to be clamped into the grille plate.
[0015] Preferably, two auxiliary blocks are fixedly installed on the surfaces of the four connecting cylinders.
[0016] The effects achieved by the above components are as follows: The auxiliary blocks can facilitate the insertion of the fixing rods into the connecting cylinders.
[0017] Preferably, anti-slip protrusions are provided on the surfaces of the eight clamping blocks.
[0018] The effects achieved by the above components are as follows: The anti-slip protrusions can assist the clamping blocks to squeeze the cable.
[0019] In summary:
[0020] In this utility model, the construction is simple, time-saving and labor-saving. It can handle cables in different environments and structures, is applicable to the complex and diverse perforation structures of offshore wind power, and can adapt to the deformation caused by temperature difference and the deformation at the bottom of the foundation ring caused by severe climates such as strong typhoons, thereby improving the sealing and anti-corrosion performance of the equipment. Description of the Drawings
[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;
[0022] Figure 2 For the present utility model Figure 1 Partial structure schematic diagram;
[0023] Figure 3 For the present utility model Figure 1 Enlarged view at A of the present utility model;
[0024] Figure 4 Partial sectional structure schematic diagram of the present utility model.
[0025] Legend: 1. Cable body; 2. Anti-corrosion layer; 3. Cable sleeve; 4. Threading hole; 5. Clamping block; 6. Screw; 7. Positioning frame; 8. Round sleeve; 9. Fixed rod; 10. Auxiliary block; 11. Connecting cylinder. Detailed Implementation Manner
[0026] Referring to Figures 1-4 as shown, the present utility model provides a technical solution: a cable threading protection structure for an offshore wind power cathodic protection device, including a cable body 1, an anti-corrosion layer 2 is provided on the surface of the cable body 1, a cable sleeve 3 is fixedly installed on the surface of the anti-corrosion layer 2, and a threading hole 4 is fixedly installed on the surface of the cable sleeve 3. The anti-corrosion layer 2 is composed of anti-corrosion paste and anti-corrosion tape. The cable sleeve 3 is made of PE material, and the PE material cable sleeve 3 has high chemical stability, does not rust, does not age, and can adapt to the characteristics of harsh environments. Eight clamping blocks 5 are provided on the surface of the cable body 1, a screw 6 is rotatably inserted into the inside of the clamping block 5, every four of the eight screws 6 form a group, and the arc surfaces of the two groups of screws 6 are both threadedly connected with a positioning frame 7. Four fixed rods 9 are fixedly inserted into the inside of the positioning frame 7. Every two of the eight fixed rods 9 form a group, and the arc surfaces of the two groups of fixed rods 9 are both slidably sleeved with a connecting cylinder 11, which can support the cable, thereby facilitating the staff to install the anti-corrosion layer 2 between the cable body 1 and the cable sleeve 3. Elastic sleeves 8 are fixedly sleeved on the surfaces of the four connecting cylinders 11, and the elastic sleeves 8 can assist the connecting cylinders 11 to be clamped into the grid plate. Two auxiliary blocks 10 are fixedly installed on the surfaces of the four connecting cylinders 11, and the auxiliary blocks 10 can facilitate the insertion of the fixed rods 9 into the connecting cylinders 11. Anti-slip protrusions are provided on the surfaces of the eight clamping blocks 5, and the anti-slip protrusions can assist the clamping blocks 5 to squeeze the cable.
[0027] Working principle: When the staff installs the anti-corrosion layer 2 between the cable body 1 and the cable sleeve 3, first, the connecting cylinder 11 is clamped in the grid plate by means of the round sleeve 8. Then, the cable body 1 is placed in the cable sleeve 3. Next, the fixing rod 9 is inserted into the connecting cylinder 11 by means of the auxiliary block 10. Then, the screw rod 6 is rotated. The screw rod 6 moves in the direction close to the cable body 1 by means of the thread. While the screw rod 6 moves, it drives the clamping block 5 to move. After the clamping block 5 moves a certain distance, the surface of the clamping block 5 comes into contact with the cable body 1. At this time, the cable is supported. At this time, the anti-corrosion layer 2 can be installed between the cable body 1 and the cable sleeve 3. The effects achieved by the cooperation of the above components are as follows: The construction is simple, time-saving and labor-saving. It can cope with cables in different environments and different structures, is suitable for the complex and diverse perforation structures of offshore wind power, and can adapt to the deformation caused by temperature difference and the deformation of the bottom of the foundation ring caused by severe climates such as strong typhoons, thereby improving the sealing and anti-corrosion performance of the equipment.
[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.
Claims
1. A cable threading protection structure for an offshore wind power cathodic protection device, comprising a cable body (1), characterized in that: The surface of the cable body (1) is provided with an anti-corrosion layer (2), the surface of the anti-corrosion layer (2) is fixedly mounted with a cable sleeve (3), and the surface of the cable sleeve (3) is fixedly mounted with a threading hole (4).
2. A cable threading protection structure for an offshore wind power cathodic protection device according to claim 1, characterized in that: The anti-corrosion layer (2) is composed of an anti-corrosion paste and an anti-corrosion tape.
3. A cable threading protection structure for an offshore wind power cathodic protection device according to claim 1, characterized in that: The cable sleeve (3) is made of PE material.
4. A cable threading protection structure for an offshore wind power cathodic protection device according to claim 1, characterized in that: The surface of the cable body (1) is provided with eight clamping blocks (5), and screw rods (6) are rotatably inserted inside the clamping blocks (5). The eight screw rods (6) are grouped in groups of four, and the arc surfaces of the two groups of screw rods (6) are threadedly connected to positioning frames (7). Four fixing rods (9) are fixedly inserted inside the positioning frames (7), and the eight fixing rods (9) are grouped in groups of two. The arc surfaces of the two groups of fixing rods (9) are slidably sleeved with connecting tubes (11).
5. A cable threading protection structure for an offshore wind power cathodic protection device according to claim 4, characterized in that: A circular sleeve (8) is fixedly sleeved on the surface of each of the four connecting cylinders (11), and the circular sleeve (8) is an elastic sleeve.
6. A cable threading protection structure for an offshore wind power cathodic protection device according to claim 4, characterized in that: Two auxiliary blocks (10) are fixedly mounted on the surfaces of the four connecting cylinders (11).
7. A cable threading protection structure for an offshore wind power cathodic protection device according to claim 4, characterized in that: The surfaces of the eight clamping blocks (5) are all provided with anti-slip protrusions.