Protection device for submarine pipe cable

Abstract

The utility model relates to the technical field of submarine pipe cable protection, in particular to a submarine pipe cable protection device which comprises a plurality of pressing blocks used for protecting a pipe cable and a plurality of balancing weights, and grooves used for protecting the pipe cable are formed in the lower ends of the pressing blocks; the pressing blocks are connected in series, and when the pressing blocks are located on the same plane, the center lines of the grooves are located on the same straight line. The balancing weights are symmetrically arranged on the two sides of the pressing block. The pressing block with the groove formed in the bottom and the balancing weights distributed on the two sides of the pressing block are combined to form the protection device for the submarine pipe cable, the pressing block is embedded into a grooved pit of a seabed and the inverted-V-shaped groove in the lower portion and is pressed on the pipe cable which is arranged in a ditching mode in advance, the pipe cable is protected against being scratched by falling objects and ship anchors and cannot be disengaged due to environmental influence, and the protection device is safe and reliable. Better stabilizing and protecting effects are achieved, and long-term use is stable and reliable; and the counter weight body effectively prevents the pressing block from toppling over, and the stability degree of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable protection, in particular to a submarine cable protection device. Background Art

[0002] As an important medium for energy and power transmission, marine cables are widely used. A large number of submarine pipelines support the transportation of marine oil, and cables promote the transmission of energy. Their safety and reliability during use are crucial. After the laying of cables, they generally need to be buried to a certain depth in the seabed to prevent anchor damage. Generally, trenches are dug to achieve a burial depth of more than 2m. There are exposed cables in the bending section and expansion bend near the root of the platform. At this time, sheet-shaped cement blocks need to be laid on the upper part. There are square cement blocks of the same size between the mesh ropes. By pressing on the cables, they are prevented from being scratched by the anchor and play a protective effect. However, in special hard geology such as hard rock or iron plate sand, cables are mechanically excavated to form narrow shallow pits with limited burial depth. Conventional blocks are used because the surface seabed soil is hard and the cement blocks are prone to slippage, which does not play a protective role. Utility Model Content

[0003] The utility model aims to provide a protection device for submarine pipe cables.

[0004] The utility model provides the following technical solutions:

[0005] The utility model provides a submarine cable protection device, comprising a plurality of pressure blocks for protecting the cable and a plurality of counterweight blocks, wherein grooves for protecting the cable are provided at the lower ends of the pressure blocks; the pressure blocks are connected in series, and when the pressure blocks are in the same plane, the center lines of the grooves are in the same straight line; and the counterweight blocks are symmetrically arranged on both sides of the pressure blocks.

[0006] Furthermore, the counterweight blocks and the counterweight blocks, and the pressure block and the counterweight block are connected horizontally and vertically by ropes.

[0007] Furthermore, the groove is an inverted V-shaped groove.

[0008] Furthermore, the counterweight block is in the shape of a prism with two bottom surfaces fixed to each other.

[0009] Furthermore, the upper portion of the pressing block is in a prism shape.

[0010] Furthermore, the ropes are in a cross shape at the center of the pressure block and the center of the counterweight block.

[0011] Furthermore, the rope extends out of the edge of the counterweight to form a loop.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a pressure block with a groove at the bottom and counterweight blocks distributed on both sides of the pressure block are combined to form a submarine cable protection device; the pressure block is embedded in a grooved pit on the seabed, and the inverted V-shaped groove at the bottom is pressed on the pre-grooved and laid pipes and cables, protecting the pipes and cables from being scratched by falling objects and anchors, and preventing them from falling out due to environmental influences, thereby playing a better stabilizing and protective role, and being stable and reliable for long-term use; the counterweight body effectively prevents the pressure block from tipping over, and enhances the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the actual application of the utility model.

[0014] Figure 2 It is a front view of the practical application of the utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the utility model.

[0016] Figure 4 This is a schematic diagram of the enlarged structure at point A.

[0017] Figure 5 It is a schematic diagram of the top structure of the utility model.

[0018] In the figure, 00-seabed; 1-submarine cable; 2-pressure block; 21-groove; 22-center line; 3-counterweight block; 31-prism; 4-rope; 5-ring; 51-longitudinal ring; 52-transverse ring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] See also Figure 1 and Figure 5 In one embodiment of the utility model, a submarine umbilical cable protection device includes a plurality of pressure blocks 2 for protecting umbilical cables and a plurality of counterweight blocks 3. The lower end of the pressure block 2 is provided with a groove 21 for protecting the umbilical cable; the pressure blocks 2 are connected in series, and when the pressure blocks 2 are in the same plane, the center lines 22 of the grooves 21 are in the same straight line; the counterweight blocks 3 are symmetrically arranged on both sides of the pressure blocks 2. The pressure blocks are embedded in the grooved pit of the seabed 00, pressed on the pre-grooved and laid submarine umbilical cable 1, and protect the submarine umbilical cable 1 from being scratched by falling objects and anchors; the pressure blocks 2 are embedded in the seabed 00 and are stabilized by the counterweight blocks 3 on both sides, and will not fall out due to environmental influences, which plays a better stabilizing and protective role.

[0021] In the above embodiment, a rubber sheet is bonded in the groove 21 to avoid direct wear between the groove 21 and the submarine umbilical cable 1 , thereby ensuring the long-term safety of the submarine umbilical cable 1 .

[0022] Please continue reading Figure 1 and Figure 5 In one embodiment of the utility model, the counterweight blocks 3 and the counterweight blocks 3, and the pressure blocks 2 and the counterweight blocks 3 are connected horizontally and vertically by ropes 4; by using the ropes 4, the device can protect the submarine cable 1 according to the shape of the seabed 00.

[0023] In the above embodiment, the device is integrally formed by cement pouring, and the ropes are fixedly connected to each pressing block 2 and the counterweight block 3 as the cement solidifies.

[0024] See also Figure 2 In one embodiment of the utility model, the groove 21 is an inverted V-shaped groove, which satisfies the requirement of being aligned with the submarine cable 1 and pressing on the submarine cable 1 to protect the submarine cable 1.

[0025] See also Figure 3 In one embodiment of the utility model, the counterweight block 3 is in the shape of two prisms 31 with fixed bottom surfaces, so as to prevent slipping after being arranged on the seabed 00.

[0026] See also Figure 3 In one embodiment of the utility model, the upper portion of the pressing block 2 is in a prism shape to facilitate anti-slip.

[0027] See also Figure 1 or Figure 3 or Figure 5 In the above embodiment, the ropes 4 are in a cross shape (not marked in the figure) at the center of the pressure block 2 and the center of the counterweight block 3, so as to facilitate overall stability during lifting.

[0028] See also Figure 1 In the above embodiment, the rope 4 extends out of the edge of the counterweight block to form a ring 5, which is convenient for later lifting and connection.

[0029] See also Figure 3 , Figure 4 and Figure 5 In the above embodiment, the ring 5 includes: a longitudinal ring 51 which is consistent with the direction of the center line 22 of the groove, and a transverse ring 52 which is perpendicular to the direction of the center line 22. The length L1 of the longitudinal ring 51 is 40-50 cm, and the length L2 of the transverse ring 52 is 20-25 cm. The transverse ring 52 is conducive to meeting the needs of installation and construction hoisting; the longitudinal ring 51 is conducive to meeting the connection between the two devices to form a longer device to better meet the needs.

[0030] In actual application, the crane hangs the transverse ring 52, and the diver or underwater robot directs the crane to align the pressure block 2 with the seabed groove where the submarine cable 1 is buried, so that the pressure block is embedded in the seabed groove, and gradually lowered so that the counterweight blocks 3 on both sides fall on the seabed 00 surface on both sides of the groove. Due to its own weight, the cement pressure block will sink as a whole on the seabed 00 surface after installation, and the groove 21 will just press on the top of the submarine cable 1. Then the connection between the crane and the transverse ring 52 is released to complete the deployment of the utility model. The deployment of multiple devices of this invention is completed in the same way to ensure that the interval between two adjacent groups does not exceed half a meter. In order to further ensure the overall protection effect, divers can use clamps or ropes to connect the longitudinal rings of adjacent devices underwater to form a long mesh connecting multiple groups of devices to better meet the protection needs.

[0031] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A protective device for a submarine cable, characterized in that: It comprises a plurality of pressure blocks for protecting pipes and cables and a plurality of counterweight blocks, wherein a groove for protecting pipes and cables is provided at the lower end of the pressure blocks; the pressure blocks are connected in series, and when the pressure blocks are in the same plane, the center lines of the grooves are in the same straight line; the counterweight blocks are symmetrically arranged on both sides of the pressure blocks.

2. A submarine cable protection device according to claim 1, characterized in that: The counterweight blocks and the pressure blocks are connected horizontally and vertically by ropes.

3. A submarine cable protection device according to claim 1, characterized in that: The groove is an inverted V-shaped groove.

4. A submarine cable protection device according to claim 1, characterized in that: The counterweight block is in the shape of a prism with two bottom surfaces fixed to each other.

5. The protection device for submarine cable according to claim 1, characterized in that: The upper part of the pressing block is in a prism shape.

6. A submarine cable protection device according to claim 2, characterized in that: The ropes are in a cross shape at the center of the pressure block and the center of the counterweight block.

7. A submarine cable protection device according to claim 2, characterized in that: The rope extends out of the edge of the counterweight to form a loop.

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