External wear-resistant protection device for submarine pipe cable

Abstract

The utility model discloses an external wear-resistant protection device for a submarine pipe cable, which comprises a plurality of groups of half-tile components, the half-tile components are annularly sleeved outside the submarine pipe cable, each half-tile component consists of a small-end ball head half-tile, a middle U-shaped section and a large-end ball head half-tile, and the small-end ball head half-tile, the middle U-shaped section and the large-end ball head half-tile are combined and lengthened in a nesting manner through a large ball head and a small ball head of a short section. The short sections are connected so that the short sections can continuously wrap the submarine cable or the hose, the side buckles are installed on the side faces of the half tiles connected up and down, meanwhile, the fastening assemblies penetrate through the installation holes for connection, the buckles clamp the side edges of the half tiles, breaking does not exist in the circumferential direction, and the bending resistance and the connection stability of the structure are effectively improved. By means of the structure, connection of the two half tiles is more reliable, bending resistance is improved by adding a small amount of materials, comprehensive economy is good, local hard collision does not exist on the whole, abrasion-resistant protection can be better provided, a certain bending resistance effect is achieved, and long-term use is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering construction, in particular to an external wear-resistant protective device for submarine cables. Background Art

[0002] The laying route of submarine cables or hoses often passes through rocky sections. Under the influence of ocean currents, submarine cables or hoses will constantly rub against rocks. Under long-term influence, the outer protective layer of the submarine cables or hoses will be damaged, eventually leading to insulation damage or corrosion of the metal reinforcement layer inside the hose due to seawater intrusion, resulting in breakdown or damage. In some cases, submarine cables or hoses will be damaged by the impact of foreign objects. In the above cases, the submarine cables or hoses need to be protected. The commonly used protective tube is a short section in the form of a half-tile, which is customized and manufactured according to the size of different submarine cables or hoses. Considering that the submarine cable or hose will bend and deform during construction, the side opening will appear when the protective device is subjected to bending moment. It is difficult to ensure long-term stability and reliability of the upper and lower half-tiles by connecting bolts alone.

[0003] In order to solve the above problems, we proposed an external wear-resistant protection device for submarine cables. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a submarine cable external wear-resistant protection device, and the utility model provides the following technical solutions:

[0005] A submarine cable external wear-resistant protective device comprises a plurality of half-tile components, wherein the half-tile components are sleeved on the outside of the submarine cable and are structures with front and rear ball-end half-tiles formed by casting of polyurethane elastomer. The half-tile components are composed of a small-end ball-end half-tile, a middle U-shaped section, and a large-end ball-end half-tile. The front and rear ends of the middle U-shaped section are the small-end ball-end half-tile and the large-end ball-end half-tile respectively. The outer spherical surface of the small-end ball-end half-tile of the half-tile component is embedded in the inner spherical surface of the large-end ball-end half-tile of the adjacent half-tile component to form a Ball hinge; the middle U-shaped section is a semi-circular arc structure with holes and flanges at both ends. The holes of the flanges at both ends of the middle U-shaped section correspond to the holes of the side buckles. The side buckles are inserted into the flanges of the upper and lower half-tile components installed in pairs through the C-shaped grooves opened in the cross-section. The mechanical clamping of the upper and lower half-tile components is achieved through the C-shaped grooves. The flanges at both ends of the middle U-shaped section are fixed to the openings of the side buckles through fastening components. The fastening components are bolts made of stainless steel and can be hexagonal or internal.

[0006] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0007] This patent adopts a half-tile structure, and the short sections are connected in a nested manner by combining the large and small ball heads. The short sections are connected so that they are continuously wrapped around the outside of the submarine cable or hose. The upper and lower half-tiles are installed with side buckles on the sides, and a fastening component is connected through the mounting hole. The buckle clamps the side edge of the half-tile, and there is no disconnection in the circumferential direction, which effectively improves the structural bending resistance and connection stability. Through such a structure, the connection between the two half-tiles is more reliable, and the bending resistance is improved by adding a small amount of materials. The comprehensive economy is good, there is no local hard bump on the whole, it can better provide wear protection and have a certain anti-bending effect, and it is stable and reliable for long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used to illustrate the purpose of the preferred embodiment and are not considered to be limitations of the present invention. In the entire drawings, the same reference numerals are used to represent the same parts.

[0009] In the attached picture:

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the composition of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the half-tile component of the utility model;

[0013] Figure 4 It is a schematic diagram of the side buckle structure of the utility model.

[0014] The corresponding relationship between the reference numerals and the components is as follows:

[0015] 1. Half-tile component; 11. Small-end ball head half-tile; 12. Middle U-shaped section; 13. Large-end ball head half-tile; 2. Side buckle; 3. Fastening assembly. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] Combine the following Figures 1 to 4 A submarine cable external wear-resistant protective device according to an embodiment of the utility model is specifically described.

[0019] like Figures 1 to 4 As shown, the external wear-resistant protection device of the submarine cable comprises a plurality of groups of half-tile components 1, which are sleeved on the outside of the submarine cable and are structures with front and rear ball-head half-tiles molded by casting polyurethane elastomer. The half-tile component 1 consists of a small-end ball-head half-tile 11, a middle U-shaped section 12, and a large-end ball-head half-tile 13. The front and rear ends of the middle U-shaped section 12 are the small-end ball-head half-tile 11 and the large-end ball-head half-tile 13 respectively. The outer spherical surface of the small-end ball-head half-tile 11 of the half-tile component 1 is embedded in the inner spherical surface of the large-end ball-head half-tile 13 of the adjacent half-tile component 1 to form a ball hinge; the middle U-shaped section 12 is a structure with openings and flanges at both ends of a semicircular arc, and the openings of the flanges at both ends of the middle U-shaped section 12 correspond to the openings of the side buckle 2. The side buckle 2 is inserted into the flanges of the upper and lower groups of the half-tile components 1 installed through the C-shaped groove opened in the cross section, and the flanges at both ends of the middle U-shaped section 12 are fixed to the openings of the side buckle 2 by the fastening assembly 3.

[0020] The specific installation steps of this patent are:

[0021] Step 1: Design and manufacture half-tile components 1 and side clips 2 according to the outer diameter range of the pipe and cable. The specific quantity is determined by the required installation length and a certain margin is considered. Fastening components 3 are purchased according to the design requirements, with a certain margin, and all are shipped to the installation site;

[0022] Step 2: Place the half-tile component 1 beside the pipe and cable at the location where the wear-resistant protective tube needs to be installed, and use the small end ball head half-tile 11 of the adjacent half-tile component 1 to embed the large end ball head half-tile 13 of the next half-tile component 1 to complete the continuous placement of one half side, and then lift the pipe and cable and clip it into the continuously placed half-side groove;

[0023] Step 3: buckle the half-tile component 1 on the half-tile component 1 that has been placed continuously on the half side, starting from the continuous large end ball head half-tile 13, realize the nested installation of large and small ball heads, and insert the side buckle 2 from the side into the middle U-shaped section 12 of the half-tile component 1 that has been assembled from top to bottom, align the installation hole, and then pass the bolt through for pre-tightening to complete the installation of the fastening component 3. Complete the remaining fastening components 3 according to the above requirements, and after the installation is completed, lay the pipes and cables and lower them to the seabed.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Claims

1. A submarine cable external wear protection device, comprising a plurality of half-tile components (1), characterized in that: The half-tile component (1) is sleeved on the outside of the submarine cable and is a structure with front and rear ball-headed half-tiles formed by casting polyurethane elastomer. The half-tile component (1) is composed of a small-end ball-headed half-tile (11), a middle U-shaped section (12), and a large-end ball-headed half-tile (13). The front and rear ends of the middle U-shaped section (12) are respectively the small-end ball-headed half-tile (11) and the large-end ball-headed half-tile (13). The outer spherical surface of the small-end ball-headed half-tile (11) of the half-tile component (1) is embedded in the adjacent half-tile component. The large end ball head half-tile (13) of (1) forms a ball hinge inside the inner spherical surface; the middle U-shaped section (12) is a semi-circular arc with a structure of openings and flanges at both ends; the openings of the flanges at both ends of the middle U-shaped section (12) correspond to the openings of the side buckles (2); the side buckles (2) are inserted into the flanges of the upper and lower half-tile components (1) through the C-shaped grooves provided in the cross section; the flanges at both ends of the middle U-shaped section (12) and the openings of the side buckles (2) are fixed by fastening components (3).

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