Hoop suitable for fixing cable conduit on offshore jacket foundation

Abstract

The utility model relates to the technical field of offshore jackets, and particularly discloses a hoop suitable for fixing a cable conduit on an offshore jacket foundation, which comprises a large hoop connecting component, a large hoop connecting component, a small hoop connecting component and a large hoop connecting component, and is characterized in that the large hoop connecting component is used for surrounding and fixing a cross node of a wind power jacket foundation support leg; the device has enough strength and rigidity so as to bear dynamic load in an offshore environment; the small hoop assembly is used for surrounding and being fixed on the outer wall of the cable tube so as to keep the cable tube at a preset position; according to the device, through the large hoop connecting assembly and the small hoop connecting assembly, a cable pipe can be effectively fixed, and important supporting leg cross nodes of a wind power jacket foundation are protected against corrosion. In the construction process, the large hoop connecting assembly is arranged at the cross joint of the wind power jacket foundation supporting legs in a sleeving mode, formwork erecting is conducted, anti-corrosion concrete is poured, and therefore the fixing effect and the corrosion resistance are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore conductor frames, in particular to a clamp suitable for fixing a cable pipe on the basis of an offshore conductor frame. Background Art

[0002] In the field of offshore wind power, the fixation of cable systems is a key technical challenge. Existing technologies usually involve the use of standardized metal clamps to fix cable tubes. These clamps are usually made of steel and have a certain strength and rigidity to withstand the loads of wind and waves. These clamps are usually installed on the legs of the conductor frame to connect the power transmission between the offshore wind turbine and the land. However, due to the harsh conditions of the marine environment, such as salt spray and seawater erosion, these clamps are prone to corrosion, resulting in reduced stability and reliability.

[0003] Although the existing offshore wind power cable fixing technology can meet the basic needs to a certain extent, there are still some shortcomings. The existing clamp structure often lacks adaptive design for specific marine environmental conditions, resulting in insufficient stability and corrosion resistance in extreme environments. The existing clamp structure may not provide sufficient support and stability when fixing the cable pipe, especially under the fatigue load of waves, it is prone to plastic deformation, affecting the normal operation of the cable system. In addition, the existing clamp structure is also insufficient in anti-corrosion protection and lacks effective anti-corrosion measures, which makes it susceptible to corrosion and erosion during long-term use, affecting its service life and reliability. Therefore, the existing offshore wind power cable fixing technology needs to be further improved to improve its stability and corrosion resistance to ensure the reliable operation and long-term use of offshore wind farms. Utility Model Content

[0004] The utility model aims to provide a clamp suitable for fixing a cable pipe on an offshore conductor frame foundation, so as to solve the problems raised in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a clamp suitable for fixing a cable pipe on an offshore conductor frame foundation, comprising:

[0006] A large clamp connection assembly, which is used to surround and fix at the cross node of the wind power conduit foundation legs to withstand dynamic loads in an offshore environment;

[0007] A small clamp assembly, the small clamp assembly is used to surround and fix on the outer wall of the cable tube to keep the cable tube in a predetermined position;

[0008] A bolt connection mechanism is used to fasten and connect the large clamp connection assembly and the small clamp assembly into one piece.

[0009] In a feasible implementation, the large clamp connection assembly includes two first semi-annular components, which are installed opposite to each other to form a circular structure that wraps the cross node, and the interior of the circular structure is filled with anti-corrosion concrete.

[0010] In a feasible embodiment, the small clamp assembly includes two second semi-annular components and two third semi-annular components, the two second semi-annular components are fixedly connected to the two first semi-annular components, and the two third semi-annular components are arranged opposite to the two second semi-annular components, forming a circular structure that wraps the cable tube in the middle.

[0011] In a feasible implementation manner, the two second semi-annular components and the third semi-annular components have elastic deformation capability, so as to adapt to the shape of the cable pipe during installation and prevent the cable pipe from being displaced under the action of wind and waves at sea.

[0012] In a feasible implementation manner, stiffening ribs are provided between the two second semi-annular components and the first semi-annular component, and the stiffening ribs enhance the local strength and torsional resistance of the connection portion.

[0013] In a feasible implementation manner, the surfaces of the large clamp connection assembly and the small clamp assembly are coated with one or more layers of anti-corrosion coating.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the device can effectively fix the cable pipe and protect the important leg intersection nodes of the wind turbine conduit frame foundation from corrosion through the large clamp connection assembly and the small clamp assembly; during the construction process, the large clamp connection assembly is sleeved on the leg intersection nodes of the wind turbine conduit frame foundation, and anti-corrosion concrete is cast on the formwork to enhance the fixing effect and corrosion resistance; then, the cable pipe is installed on both sides of the clamp; the use of the clamp helps to ensure the normal operation of the cable pipe and extend its service life; through a simple construction process and convenient material installation, the stable fixation of the cable pipe and the protection of the wind turbine conduit frame foundation are achieved, thereby improving the reliability and durability of offshore wind power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the test structure of the small clamp assembly of the utility model.

[0019] In the figure: 1. first semi-annular member, 2. second semi-annular member, 3. third semi-annular member, 4. bolt connection mechanism, 5. cross node, 6. anti-corrosion concrete, 7. cable pipe, 8. stiffening rib. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a clamp suitable for fixing a cable pipe on an offshore conductor frame foundation, comprising: a large clamp connection assembly, a small clamp assembly and a bolt connection mechanism 4, the large clamp connection assembly is used to surround and fix at the cross node 5 of the wind turbine conductor frame foundation support leg, and has sufficient strength and rigidity to withstand the dynamic load in the offshore environment; the small clamp assembly is used to surround and fix on the outer wall of the cable pipe 7 to keep the cable pipe 7 in a predetermined position; the bolt connection mechanism 4 is used to fasten the large clamp connection assembly and the small clamp assembly together to ensure the stability and durability of the overall structure.

[0022] In the specific implementation process, it should be noted that according to the size and shape of the cross node 5 of the foundation leg of the wind turbine conduit rack, a large hoop connection assembly is customized to adapt to and be fixed at the cross node 5 of the leg. At the cross node 5 of the foundation leg of the wind turbine conduit rack, the large hoop connection assembly is installed in place to ensure that it fits tightly on the leg. Subsequently, a formwork is set between the hoop assembly and the leg, and anti-corrosion concrete 6 is poured to enhance the fixing effect and corrosion resistance. After the installation and fixation of the large hoop connection assembly is completed, the small hoop assembly is placed on the outer wall of the cable pipe 7 to ensure that its semi-annular component adapts to the shape and size of the cable pipe 7. The large hoop connection assembly and the small hoop assembly are fastened together by the bolt connection mechanism 4 so that the cable pipe 7 is firmly constrained in a predetermined position. During the bolt connection process, it is necessary to ensure that the tightening degree of the bolts is moderate to provide a uniform restraining force to prevent the displacement of the cable pipe 7 under the action of wind and waves at sea. After the bolt connection is completed, the strength and stability test of the clamp is carried out to check whether the tightening degree of the bolts meets the design requirements, ensuring that the overall structure can withstand dynamic loads in the offshore environment, thereby ensuring the safe operation of the cable tube 7. The entire workflow not only ensures the stability and durability of the clamp, but also simplifies the construction process and improves construction efficiency.

[0023] In some examples, further, the large clamp connection assembly includes two first semi-annular components 1, which are installed opposite to each other to form a circular structure that wraps the cross node 5, and the interior of the circular structure is filled with anti-corrosion concrete 6.

[0024] In the specific implementation process, it should be noted that before the construction begins, the two first semi-circular components 1 are first customized according to the size of the intersection node 5 of the foundation leg of the conductor frame, and are installed relative to each other to form a circular structure around the intersection of the conductor frame. The two first semi-circular components 1 are transported to the construction site and preliminarily positioned at the intersection node 5 of the foundation leg of the wind turbine conductor frame. The positions of the first two semi-circular components are adjusted so that they are relatively installed and tightly docked to ensure that the circular structure formed in the middle coincides with the intersection of the conductor frame. After the two first semi-circular components 1 are in place and adjusted, formwork is carried out, that is, formwork is built between and around the first semi-circular components 1 to form a space filled with anti-corrosion concrete 6. The anti-corrosion concrete 6 is poured into the interior of the circular structure to fill the space between the two first semi-circular components 1, thereby enhancing the connection stability between the clamp and the conductor frame foundation and improving the overall corrosion resistance.

[0025] During the pouring of the anticorrosive concrete 6, it is necessary to ensure that the concrete fully fills the interior of the circular structure to avoid hollowing or cracks. After the concrete hardens, the formwork is removed and the filled anticorrosive concrete 6 is cured to ensure that it reaches the designed strength. After completing the above steps, the large clamp connection assembly is firmly fixed at the cross node 5 of the conductor frame foundation leg, providing stable support for the subsequent installation of the small clamp assembly and the cable tube 7. It not only ensures the close connection between the clamp and the conductor frame foundation, but also improves the overall durability and wind and wave resistance of the structure.

[0026] In some examples, further, the small clamp assembly includes two second semi-annular components 2 and two third semi-annular components 3, the two second semi-annular components 2 are fixedly connected to the two first semi-annular components 1, and the two third semi-annular components 3 are arranged opposite to the two second semi-annular components 2, forming a circular structure that wraps the cable tube 7 in the middle.

[0027] In the specific implementation process, it should be noted that after the installation and fixation of the large hoop connection assembly is completed, the installation of the small hoop assembly is then carried out. The small hoop assembly includes two second semi-circular components 2 and two third semi-circular components 3. The two second semi-circular components 2 are fixedly connected to the two first semi-circular components 1 of the large hoop connection assembly to ensure that their positions and angles are correct. Then, the two third semi-circular components 3 are positioned on the two second semi-circular components 2. The two third semi-circular components 3 are arranged relative to the two second semi-circular components 2 to ensure that their positions and angles are correct. After the two third semi-circular components 3 are in place and adjusted, the connection work of the bolt connection mechanism 4 is carried out, that is, bolts are installed between the two third semi-circular components 3 and the two second semi-circular components 2, and the bolts are tightened to provide uniform restraint force to prevent the displacement of the cable tube 7 under the action of wind and waves at sea. After the bolt connection is completed, the strength and stability test of the hoop is carried out to check whether the tightening degree of the bolts meets the design requirements to ensure that the overall structure can withstand dynamic loads in the offshore environment, thereby ensuring the safe operation of the cable tube 7. The entire workflow not only ensures the stability and durability of the clamp, but also simplifies the construction process and improves construction efficiency.

[0028] In some examples, further, before the two first semi-annular components 1 are installed, formwork is pre-supported at the intersection node 5 and anti-corrosion concrete 6 is poured to enhance the fixing effect and corrosion resistance.

[0029] In the specific implementation process, it should be noted that in the construction preparation stage, first, according to the size of the intersection node 5 of the foundation leg of the conductor frame, two first semi-circular components 1 are customized. The two first semi-circular components 1 are relatively installed to form a circular structure around the intersection of the conductor frame. At the intersection node 5 of the foundation leg of the wind turbine conductor frame, formwork is carried out, that is, a template is built at the intersection of the legs to form a space for pouring anti-corrosion concrete 6. Subsequently, the anti-corrosion concrete 6 is poured into the inside of the template to fill the space between the two first semi-circular components 1 to enhance the fixing effect and corrosion resistance. During the pouring of the anti-corrosion concrete 6, it is necessary to ensure that the concrete fully fills the inside of the template to avoid hollowing or cracks. After the concrete hardens, the template is removed, and the filled anti-corrosion concrete 6 is cured to ensure that it reaches the design strength. After completing the above steps, the two third semi-circular components 3 are preliminarily positioned at the intersection node 5 of the foundation leg of the conductor frame. The third semi-circular component 3 and the second semi-circular component 2 are relatively installed and tightly docked to ensure that the circular structure formed in the middle coincides with the intersection of the conductor frame. After the two first semi-circular components 1 are in place and adjusted, bolt connection is performed, that is, bolts are installed between the two semi-circular components and tightened to provide uniform restraining force to prevent the cable tube 7 from displacement under the action of wind and waves at sea.

[0030] In some examples, further, the two second semi-annular components 2 and the third semi-annular component 3 have elastic deformation capabilities so as to adapt to the shape and size changes of the cable tube 7 during the installation process, and provide uniform restraining force through the action of bolts to prevent the cable tube 7 from being displaced under the action of wind and waves at sea.

[0031] In the specific implementation process, it should be noted that two second semi-circular components 2 and two third semi-circular components 3 with elastic deformation capability are customized according to the size and shape of the conductor frame foundation legs. The second semi-circular component 2 and the two third semi-circular components 3 are used to adapt to the shape and size changes that may occur during the installation of the cable tube 7. After the third semi-circular component 3 is in place and adjusted, the bolt connection work is carried out, that is, bolts are installed between the second semi-circular component 2 and the third semi-circular component 3, and the bolts are tightened to provide uniform restraint force to prevent the cable tube 7 from being displaced under the action of wind and waves at sea.

[0032] In some examples, further, stiffening ribs 8 are provided between the two second semi-annular components 2 and the first semi-annular component 1, and the stiffening ribs 8 enhance the local strength and torsional resistance of the connection parts, prevent plastic deformation under high loads, and ensure the long-term stability of the clamp.

[0033] During the specific implementation process, it should be noted that the stiffening rib 8 is designed to enhance the local strength and torsional resistance of the connection part, prevent plastic deformation under high load, and ensure the long-term stability of the clamp. The stiffening rib 8 and bolt connection provide a stable fixing effect, which improves construction efficiency and safety. The setting of the stiffening rib 8 not only enhances the local strength of the connection part, but also improves the torsional resistance of the clamp, ensuring that the clamp will not produce plastic deformation under high load, thereby ensuring the long-term stability of the clamp. This design feature enables the clamp to adapt to the complex load conditions of the offshore environment and provides a reliable guarantee for the stable operation of the offshore jacket foundation.

[0034] In some examples, further, the surfaces of the large clamp connection assembly and the small clamp assembly are coated with one or more layers of anti-corrosion coatings, and the anti-corrosion coatings are selected from high-performance coatings resistant to marine environments such as epoxy paint, polyurethane paint, and fluorocarbon paint to provide long-term anti-corrosion protection.

[0035] In the specific implementation process, it should be noted that the surface of the large clamp connection assembly and the small clamp assembly is coated with one or more layers of anti-corrosion coating to provide long-term anti-corrosion protection. The selection of anti-corrosion coatings includes high-performance coatings resistant to marine environments such as epoxy paint, polyurethane paint, and fluorocarbon paint. Throughout the entire workflow, the anti-corrosion coating coated on the surface of the clamp assembly can provide long-term anti-corrosion protection, effectively resist the corrosion of the marine environment, and extend the service life of the clamp. This enables the clamp to adapt to the harsh conditions of the offshore environment and provides a reliable guarantee for the stable operation of the offshore jacket foundation.

[0036] The construction process of the hoop includes the following steps:

[0037] Step 1: Customize the large clamp connection assembly and the small clamp assembly according to the specific size and shape of the jacket foundation;

[0038] Step 2: Install a large clamp connection assembly at the cross node 5 of the wind turbine conduit foundation leg, and cast anti-corrosion concrete 6 to ensure a firm connection between the clamp and the foundation;

[0039] Step 3: Position the cable tube 7 at a predetermined position of the small clamp assembly and fasten it through the bolt connection mechanism 4;

[0040] Step 4: After installation, check the tightening degree of the bolts and test the strength and stability of the clamp to ensure that the clamp meets the design requirements.

[0041] The design of the clamp takes into account the structural characteristics and working environment of the offshore wind turbine, which can simplify the construction process, improve installation efficiency, and protect the cross node 5 of the jacket foundation leg from corrosion, thereby extending the service life of the structure. The structure and size of the clamp can be adaptively designed according to the specifications of different offshore jacket foundations and the size of the cable tube 7, and has wide applicability and flexibility to meet different engineering requirements.

[0042] In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "two ends", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, terms such as "setting", "installation", "connection", "fixed installation", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamp suitable for fixing a cable pipe on an offshore conductor frame foundation, characterized in that: include: A large clamp connection assembly, which is used to surround and fix at the cross node of the wind power conduit foundation legs to withstand dynamic loads in an offshore environment; A small clamp assembly, the small clamp assembly is used to surround and fix on the outer wall of the cable tube to keep the cable tube in a predetermined position; A bolt connection mechanism is used to fasten and connect the large clamp connection assembly and the small clamp assembly into one piece.

2. A clamp for fixing a cable pipe on an offshore jacket foundation according to claim 1, characterized in that: The large clamp connection assembly includes two first semi-annular components, which are installed opposite to each other to form a circular structure that wraps the cross node, and the interior of the circular structure is filled with anti-corrosion concrete.

3. A clamp for fixing a cable pipe on an offshore jacket foundation according to claim 2, characterized in that: The small clamp assembly includes two second semi-annular components and two third semi-annular components. The two second semi-annular components are fixedly connected to the two first semi-annular components. The two third semi-annular components are arranged opposite to the two second semi-annular components, forming a circular structure that wraps the cable tube in the middle.

4. The clamp for fixing a cable pipe on an offshore jacket foundation according to claim 3, characterized in that: The two second semi-annular components and the third semi-annular components have elastic deformation capability and are used to adapt to the shape of the cable pipe during installation and prevent the cable pipe from being displaced under the action of wind and waves at sea.

5. The clamp for fixing a cable pipe on an offshore jacket foundation according to claim 3, characterized in that: Stiffening ribs are arranged between the two second semi-annular components and the first semi-annular component, and the stiffening ribs enhance the local strength and torsional resistance of the connection parts.

6. The clamp for fixing a cable pipe on an offshore jacket foundation according to claim 1, characterized in that: The surfaces of the large clamp connection assembly and the small clamp assembly are coated with one or more layers of anti-corrosion coating.

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