Dynamic submarine cable weighting device

Abstract

The application provides a dynamic submarine cable counterweight device, comprising a metal counterweight, the metal counterweight is in a segmented structure along a set direction and comprises a plurality of counterweight segments, any two adjacent counterweight segments are detachably fixedly connected, any two adjacent counterweight segments are formed with an accommodating cavity, and the accommodating cavity has an opening for seawater to enter and exit, wherein at least part of the accommodating cavity is provided with an anode block, and the anode block is in conductive contact with the counterweight segment. The dynamic submarine cable counterweight device provided by the application not only gradually offsets the weight of marine organisms attached to the anode block by using the corrosion and sacrifice consumption of the anode block, reduces the influence of marine organisms on the weight of the counterweight block, reduces the risk of linear change of the dynamic submarine cable, but also can flexibly adjust the counterweight of the counterweight device by adjusting the number of counterweight segments, so that the configuration and adjustment of the counterweight device are simple and convenient, and the anode block is accommodated in the accommodating cavity, so that marine organisms are not easy to attach to the anode block, which helps to ensure the controllable corrosion of the anode block.

Description

Technical Field

[0001] This utility model generally relates to the field of submarine cable laying technology, and specifically to a dynamic submarine cable counterweight device. Background Technology

[0002] To reduce the amplitude of movement of the dynamic submarine cable in seawater and maintain its alignment, counterweights are usually installed on the cable. However, marine organisms can adhere to these counterweights, increasing their weight and raising the risk of changes in the cable's alignment. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a dynamic submarine cable counterweight device.

[0004] This application provides a dynamic submarine cable counterweight device, including a metal counterweight. The metal counterweight has a segmented structure along a set direction and includes multiple counterweight segments. Any two adjacent counterweight segments are detachably fixedly connected. A receiving cavity is formed between any two adjacent counterweight segments, and the receiving cavity has an opening for seawater to enter and exit. At least a portion of the receiving cavity is provided with an anode block, and the anode block is in conductive contact with the counterweight segment.

[0005] Furthermore, in any two adjacent counterweight sections, one counterweight section has a plurality of spaced first slots recessed at one end near the receiving cavity, and the other counterweight section has a plurality of connecting plates on one side near the receiving cavity. The plurality of connecting plates are inserted into the plurality of first slots one by one, and the corresponding connecting plates and first slots are screwed together.

[0006] Furthermore, the connecting plate includes a plug-in section and a surrounding section. The plug-in section is located inside the first slot, and the surrounding section is located outside the first slot. Both ends of the surrounding section are connected to the plug-in section and the counterweight section, respectively. Multiple surrounding sections in multiple connecting plates together form a receiving cavity.

[0007] Furthermore, an opening is formed between any two adjacent enclosure sections.

[0008] Furthermore, the first slot is located on the outer peripheral sidewall of the counterweight section.

[0009] Furthermore, the connecting plate and the counterweight section are integrated into one structure.

[0010] Furthermore, the anode block is screwed to the counterweight section.

[0011] Furthermore, at least part of the counterweight section is provided with a guide hole that runs through the counterweight section in a set direction, and the guide hole connects two receiving cavities located on both sides of the counterweight section.

[0012] Furthermore, it also includes a jacketed tube, which is fixedly sleeved on the outer periphery of the dynamic submarine cable and connected to the first counterweight section.

[0013] Furthermore, a connecting chain connects the jacketed tube and the first counterweight section.

[0014] The dynamic submarine cable counterweight device provided in this application configures the metal counterweight into a multi-segment structure, including multiple counterweight segments. Any two adjacent counterweight segments are detachably fixedly connected, and a receiving cavity is formed between any two adjacent counterweight segments. At least part of the receiving cavity contains an anode block, and the anode block and the counterweight segment are in conductive contact. This not only utilizes the corrosion sacrifice consumption of the anode block to gradually offset the weight of marine organisms attached to the anode block, reducing the impact of marine organisms on the weight of the counterweight block and reducing the risk of changes in the shape of the dynamic submarine cable, but also allows for flexible adjustment of the counterweight device by adjusting the number of counterweight segments, making the configuration and adjustment of the counterweight device simple and convenient. At the same time, the anode block is housed in the receiving cavity, making it difficult for marine organisms to attach to the anode block, which helps to ensure the controllable corrosion of the anode block. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the metal counterweight provided in the embodiments of this application. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0018] Please refer to the attached document. Figure 1This application provides a dynamic submarine cable counterweight device, including a metal counterweight 100. The metal counterweight 100 has a segmented structure along a set direction and includes multiple counterweight segments 110. Any two adjacent counterweight segments 110 are detachably and fixedly connected, allowing the number of counterweight segments 110 to be adjusted as needed, achieving flexible adjustment of the counterweight device's weight. The configuration and adjustment of the counterweight device are simple and convenient. A receiving cavity 101 is formed between any two adjacent counterweight segments 110. At least a portion of the receiving cavity 101 contains an anode block, and the anode block is in conductive contact with the counterweight segment 110. The receiving cavity 101 has an opening 102, through which seawater enters and exits to ensure contact between the anode block and the seawater. Based on anode sacrificial protection technology, the anode block undergoes corrosion sacrifice, and its weight gradually decreases during corrosion sacrifice, thereby gradually offsetting the weight of marine organisms attached to the anode block, reducing the impact of marine organisms on the weight of the counterweight block, and reducing the risk of changes in the dynamic submarine cable's alignment. In addition, the anode block is housed in the containment cavity 101, making it difficult for marine organisms to adhere to the anode block, which helps to ensure the controlled corrosion of the anode block.

[0019] The metal counterweight 100 can be made of, but is not limited to, cast iron, stainless steel, etc. The anode block can be made of, but is not limited to, aluminum-zinc-magnesium alloy, etc.

[0020] The counterweight section 110 may be prism-shaped or cylindrical in shape, but is not limited to that shape, and its orientation is set to the axial direction of the counterweight section 110.

[0021] Users can choose to install anode blocks in some of the receiving cavities 101 or install anode blocks in each of the receiving cavities 101 according to their needs, thereby improving the practicality of the counterweight device.

[0022] In some embodiments of this application, in any two adjacent counterweight sections 110, one counterweight section 110 has a plurality of spaced-apart first slots 111 recessed at one end near the receiving cavity 101, and the other counterweight section 110 has a plurality of connecting plates 112 on one side near the receiving cavity 101. The plurality of connecting plates 112 are inserted one-to-one into the plurality of first slots 111, and the corresponding connecting plates 112 and first slots 111 are screwed together. The connection structure between the counterweight sections 110 is simple and easy to assemble and disassemble, while ensuring high reliability of the connection between two adjacent counterweight sections 110.

[0023] Preferably, the counterweight section 110 is cylindrical and a plurality of first slots 111 are evenly spaced along the circumference of the counterweight section 110.

[0024] Optionally, the connecting plate 112 and the counterweight section 110 are an integral structure, which makes the connection between the connecting plate 112 and the counterweight section 110 more reliable and also improves the production efficiency of the counterweight device.

[0025] In some embodiments of this application, the connecting plate 112 includes a plug-in section and an enclosure section. The plug-in section is located inside the first slot 111, and the enclosure section is located outside the first slot 111, with its two ends connected to the plug-in section and the counterweight section 110, respectively. Multiple enclosure sections in multiple connecting plates 112 together enclose and form a receiving cavity 101. The connecting plate 112 not only achieves a fixed connection between two adjacent counterweight sections 110, but also forms the receiving cavity 101, simplifying the structure of the counterweight device and reducing its production cost.

[0026] An opening 102 is formed between any two adjacent enclosure sections, and there are multiple openings 102 to increase the flow direction of seawater within the containment cavity 101.

[0027] In some embodiments of this application, the first slot 111 is located on the outer peripheral sidewall of the counterweight section 110 to facilitate the machining of the first slot 111.

[0028] Optionally, one end of the first slot 111 extends through to the end face of the counterweight section 110 to form an insertion port on the end face of the counterweight section 110, through which the connecting plate 112 is inserted. The slot wall of the first slot 111 is provided with a first threaded connection hole, and the connecting plate 112 is provided with a first connection hole. A first bolt passes through the first connection hole and is screwed into the first threaded connection hole to fix the connecting plate 112 to the first slot 111.

[0029] In some embodiments of this application, the anode block and the counterweight section 110 are screwed together to facilitate the replacement of the anode block. Specifically, the end face of the counterweight section 110 is provided with a second threaded connection hole, the anode block is provided with a second connection hole, and a second bolt passes through the second connection hole and is screwed into the second threaded connection hole to fix the anode block in the receiving cavity 101. One end face of the anode block is in close contact with the end face of the counterweight section 110 to achieve a conductive connection between the anode block and the counterweight section 110.

[0030] In some embodiments of this application, at least a portion of the counterweight section 110 is provided with a guide hole 113 that extends through in a set direction. The guide hole 113 connects two receiving cavities 101 located on both sides of the counterweight section 110, increasing the seawater inlet and outlet of the receiving cavity 101 to reduce the impact when the opening 102 is blocked.

[0031] Optionally, each counterweight section 110 may be provided with a plurality of spaced guide holes 113.

[0032] In some embodiments of this application, a jacket tube is also included, which is fixedly sleeved on the outer periphery of the dynamic submarine cable and connected to the first counterweight section 110.

[0033] Optionally, a connecting chain is provided between the jacket tube and the first counterweight section 110 to increase the stability of the submarine cable. Both the jacket tube and the first counterweight section 110 are equipped with lugs, and the two ends of the connecting chain are respectively connected to the two lugs.

[0034] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A dynamic submarine cable counterweight device, characterized in that, The device includes a metal counterweight, which has a segmented structure along a set direction and includes multiple counterweight segments. Any two adjacent counterweight segments are detachably fixedly connected, and a receiving cavity is formed between any two adjacent counterweight segments. The receiving cavity has an opening for seawater to enter and exit. At least a portion of the receiving cavity contains an anode block, and the anode block is in conductive contact with the counterweight segment.

2. The dynamic submarine cable counterweight device according to claim 1, characterized in that, In any two adjacent counterweight sections, one of the counterweight sections has a plurality of spaced first slots recessed at one end near the receiving cavity, and the other counterweight section has a plurality of connecting plates on one side near the receiving cavity. The plurality of connecting plates are inserted into the plurality of first slots one by one, and the corresponding connecting plates and the first slots are screwed together.

3. The dynamic submarine cable counterweight device according to claim 2, characterized in that, The connecting plate includes a plug-in section and a surrounding section. The plug-in section is located inside the first slot, and the surrounding section is located outside the first slot. Both ends of the surrounding section are connected to the plug-in section and the counterweight section, respectively. The surrounding sections of the multiple connecting plates together form the receiving cavity.

4. The dynamic submarine cable counterweight device according to claim 3, characterized in that, The opening is formed between any two adjacent enclosure segments.

5. The dynamic submarine cable counterweight device according to claim 2, characterized in that, The first slot is located on the outer peripheral sidewall of the counterweight section.

6. The dynamic submarine cable counterweight device according to claim 2, characterized in that, The connecting plate and the counterweight section are an integral structure.

7. The dynamic submarine cable counterweight device according to claim 1, characterized in that, The anode block is screwed to the counterweight section.

8. The dynamic submarine cable counterweight device according to claim 1, characterized in that, At least a portion of the counterweight section is provided with a guide hole that extends through the predetermined direction, and the guide hole connects to two receiving cavities located on both sides of the counterweight section.

9. The dynamic submarine cable counterweight device according to claim 1, characterized in that, It also includes a jacketed tube, which is fixedly sleeved on the outer periphery of the dynamic submarine cable and connected to the first counterweight section.

10. The dynamic submarine cable counterweight device according to claim 9, characterized in that, A connecting chain connects the jacket tube and the first counterweight section.

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