Protective device special for submarine pipeline laying

Abstract

The utility model discloses a special protection device for submarine pipeline laying, which comprises a protection block, the lower surface of the protection block is provided with a trapezoidal groove, the lower surface of the protection block is symmetrically provided with fixing plates, and the upper surfaces of the fixing plates are fixedly connected with a fixing block. According to the special protection device for laying the submarine pipeline, through the arrangement of the protection blocks, the planting grooves and the seaweed seed bags, the trapezoidal grooves can protect the submarine pipeline, the protection blocks achieve the supporting and protecting purposes, falling objects are prevented from impacting and damaging the submarine pipeline, and the throwing device lifts the protection blocks through hanging rings connected with the fixing blocks on the fixing plates to sink into the seabed; in the process, the resistance of seawater to the protection blocks and the trapezoidal grooves can be reduced through gaps, the submarine pipeline can be hidden after the sea grass seed bags in the planting grooves grow into sea grass, meanwhile, the growing sea grass can reduce the ocean current speed to help sediment deposition, and the device can utilize the porous net plate to kill water flow and dissipate water flow energy; the method has a good protection effect and is eco-friendly.

Description

Technical Field

[0001] This utility model relates to the field of submarine pipeline protection technology, and in particular to a special protective device for submarine pipeline laying. Background Technology

[0002] Oil and natural gas are important natural resources used in all aspects of life. However, due to the overexploitation of oil and natural gas, the resources on the ground have been gradually depleted. People have shifted their focus to the seabed. During the seabed mining process, the extracted oil and natural gas need to be transported to the ground. Therefore, the construction of subsea pipelines is of great significance for realizing offshore oil and gas development.

[0003] However, the protective device is subject to seawater resistance during the actual operation of lowering it into the sea, making it inconvenient to operate. Therefore, a structure that can reduce seawater resistance while improving protection, reducing energy loss, improving protection effectiveness and eco-friendliness is needed. Thus, it is necessary to design a special protective device for laying submarine pipelines. Utility Model Content

[0004] The main purpose of this utility model is to provide a special protective device for laying submarine pipelines, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A special protective device for laying submarine pipelines includes a protective block, a trapezoidal groove on the lower surface of the protective block, a fixing plate symmetrically arranged on the lower surface of the protective block, a fixing block fixedly connected to the upper surface of the fixing plate, a lifting ring rotatably connected to the middle of the fixing block, a slit on the outer surface of the protective block, a planting trough on the outer surface of the protective block, and a seaweed seed bag fixedly connected to the inner sidewall of the planting trough.

[0007] In order to achieve the purpose of protecting the outside of the pipeline, as a special protective device for laying submarine pipelines according to this utility model, a steel rope is fixedly connected to the lower surface of the trapezoidal groove, and a protective mechanism is fixedly connected to one end of the steel rope.

[0008] In order to achieve the purpose of fitting the outside of the pipeline, as a special protective device for laying submarine pipelines according to this utility model, the protective mechanism includes a corrosion-resistant hexagonal shell, a sandbag is set in the middle of the corrosion-resistant hexagonal shell, there are several corrosion-resistant hexagonal shells, the several corrosion-resistant hexagonal shells are arranged in a linear array, and corrosion-resistant ropes are hinged between the corrosion-resistant hexagonal shells.

[0009] To facilitate easy fixing, as a special protective device for laying submarine pipelines according to this utility model, fixing bolts are fixedly connected to the four corners of the lower surface of the fixing plate, and a drill bit is fixedly connected to the lower surface of the fixing bolts.

[0010] In order to increase the anti-slip properties, the outer surface of the fixing bolt is provided with anti-slip grooves as a special protective device for laying submarine pipelines according to this utility model.

[0011] To achieve stability, a counterweight is fixedly connected to the middle of the upper surface of the fixed plate as a special protective device for laying submarine pipelines according to this utility model.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, through the setting of protective blocks, trapezoidal grooves, fixing plates, fixing blocks, lifting rings, gaps, planting troughs, and seaweed seed bags, the trapezoidal groove at the bottom of the protective block can protect the submarine pipeline, and the protective block achieves the purpose of support and protection, protecting the safety of the upper part of the submarine pipeline and preventing falling objects from impacting and damaging the submarine pipeline. The deployment device lifts the protective block and sinks it to the seabed through the lifting ring connected to the fixing block on the fixing plate. During this process, the gaps can reduce the resistance of seawater to the protective block and trapezoidal grooves. After the seaweed seed bags inside the planting trough grow into seaweed, they can hide the submarine pipeline. At the same time, the grown seaweed can reduce the ocean current speed and help sediment deposition. Moreover, the device can use porous mesh to eliminate water flow and dissipate water flow energy, which has a good protective effect and is eco-friendly.

[0014] 2. In this utility model, through the arrangement of steel rope, protective mechanism, anti-corrosion hexagonal shell, sandbag, and anti-corrosion rope, the steel rope can be fixedly connected to the protective mechanism, so that it fits snugly around the outside of the subsea pipeline for the purpose of anti-corrosion and protection. The anti-corrosion hexagonal shell is filled with sandbags to increase the counterweight. The anti-corrosion rope can connect multiple anti-corrosion hexagonal shells. The gaps between the anti-corrosion hexagonal shells reduce the sinking resistance. When the lower surface contacts the subsea pipeline, the anti-corrosion hexagonal shell can make a slight angle change, which can better fit the pipeline for protection and better fit the seabed plane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the protection mechanism structure according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the protective block structure according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the fixing bolt structure according to an embodiment of the present utility model;

[0019] Figure 5 This is a side sectional view of an embodiment of the present utility model.

[0020] In the diagram: 1. Protective block; 2. Trapezoidal groove; 3. Fixing plate; 4. Fixing block; 5. Lifting ring; 6. Gap; 7. Planting trough; 8. Seaweed seed bag; 9. Steel rope; 10. Protective mechanism; 1001. Anti-corrosion hexagonal shell; 1002. Sandbag; 1003. Anti-corrosion rope; 11. Fixing bolt; 12. Drill bit; 13. Anti-slip groove; 14. Counterweight. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] like Figure 1-5 As shown, a special protective device for laying submarine pipelines includes a protective block 1, a trapezoidal groove 2 is provided on the lower surface of the protective block 1, a fixing plate 3 is symmetrically arranged on the lower surface of the protective block 1, and a fixing block 4 is fixedly connected to the upper surface of the fixing plate 3.

[0024] In this embodiment, a hanging ring 5 is rotatably connected to the middle of the fixing block 4, a gap 6 is opened on the outer surface of the protective block 1, a planting trough 7 is opened on the outer surface of the protective block 1, and a seaweed seed bag 8 is fixedly connected to the inner side wall of the planting trough 7.

[0025] In practical use, the trapezoidal groove 2 at the bottom of the protective block 1 can protect the submarine pipeline. The protective block 1 achieves the purpose of support and protection, and can protect the safety of the upper part of the submarine pipeline, avoiding the impact and damage of the submarine pipeline by falling objects. The deployment device lifts the protective block 1 and sinks it into the seabed through the lifting ring 5 connected to the fixing block 4 on the fixing plate 3. During this process, the gap 6 can reduce the resistance of seawater to the protective block 1 and the trapezoidal groove 2. After the seaweed seed packs 8 inside the planting trough 7 grow into seaweed, they can hide the submarine pipeline. At the same time, the grown seaweed can reduce the ocean current speed and help sediment deposition. Moreover, the device can use the porous mesh plate to disinfect water flow and dissipate water flow energy, which has a good protective effect and is eco-friendly.

[0026] In this embodiment, a steel rope 9 is fixedly connected to the lower surface of the trapezoidal groove 2, and a protective mechanism 10 is fixedly connected to one end of the steel rope 9.

[0027] In practical use, the steel rope 9 can be fixedly connected to the protection mechanism 10, so that it fits snugly around the outside of the submarine pipeline for the purpose of corrosion prevention and protection.

[0028] In this embodiment, the protective mechanism 10 includes a corrosion-resistant hexagonal shell 1001, a sandbag 1002 is provided in the middle of the corrosion-resistant hexagonal shell 1001, there are several corrosion-resistant hexagonal shells 1001, the several corrosion-resistant hexagonal shells 1001 are arranged in a linear array, and corrosion-resistant ropes 1003 are hinged between the corrosion-resistant hexagonal shells 1001.

[0029] In practical use, the anti-corrosion hexagonal shell 1001 is filled with sandbags 1002 to increase the counterweight. At the same time, the anti-corrosion rope 1003 can connect multiple anti-corrosion hexagonal shells 1001. The gaps between the anti-corrosion hexagonal shells 1001 reduce the sinking resistance. When the lower surface contacts the subsea pipeline, the anti-corrosion hexagonal shell 1001 can make a slight angle change, which can better fit the pipeline for protection and better fit the seabed plane.

[0030] In this embodiment, fixing bolts 11 are fixedly connected to the four corners of the lower surface of the fixing plate 3, and a drill bit 12 is fixedly connected to the lower surface of the fixing bolts 11.

[0031] In practical use, the fixing bolt 11 is fixed under the neutral action of the drill bit 12 and the device, thereby improving stability.

[0032] In this embodiment, the outer surface of the fixing bolt 11 is provided with an anti-slip groove 13.

[0033] In practical use, the anti-slip groove 13 can increase the friction of the contact area with the seabed and improve the firmness.

[0034] In this embodiment, a counterweight 14 is fixedly connected to the middle of the upper surface of the fixing plate 3.

[0035] In practical use, the counterweight 14 can increase the weight of the device, making it easier to sink and stabilize.

[0036] Working principle: In use, the trapezoidal groove 2 at the bottom of the protective block 1 protects the subsea pipeline, achieving the purpose of support and protection. It safeguards the upper part of the subsea pipeline and prevents damage from falling objects. The deployment device lifts the protective block 1 and sinks it to the seabed through the lifting ring 5 connected to the fixing block 4 on the fixing plate 3. During this process, the gap 6 reduces the resistance of seawater to the protective block 1 and the trapezoidal groove 2. After the seaweed seed bags 8 inside the planting trough 7 grow into seaweed, they can conceal the subsea pipeline. At the same time, the grown seaweed can reduce the ocean current speed and help sediment deposition. In addition, the device can use the porous mesh plate to eliminate water flow and dissipate water flow energy. It has good protective effect and is eco-friendly. The steel rope 9 can be fixedly connected to the protection mechanism 10, so that it fits and wraps around the outside of the submarine pipeline for the purpose of corrosion prevention and protection. The anti-corrosion hexagonal shell 1001 is filled with sandbags 1002 to increase the counterweight. The anti-corrosion rope 1003 can connect multiple anti-corrosion hexagonal shells 1001. The gaps between the anti-corrosion hexagonal shells 1001 reduce the sinking resistance. When the lower surface contacts the submarine pipeline, the anti-corrosion hexagonal shell 1001 can make a slight angle change, which can better fit the pipeline for protection and better fit the seabed plane.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A special protective device for laying submarine pipelines, comprising a protective block (1), characterized in that: The lower surface of the protective block (1) is provided with a trapezoidal groove (2), and a fixing plate (3) is symmetrically arranged on the lower surface of the protective block (1). A fixing block (4) is fixedly connected to the upper surface of the fixing plate (3). The middle of the fixed block (4) is rotatably connected to a hanging ring (5), the outer surface of the protective block (1) is provided with a gap (6), the outer surface of the protective block (1) is provided with a planting trough (7), and the inner side wall of the planting trough (7) is fixedly connected to a seaweed seed bag (8).

2. The special protective device for laying submarine pipelines according to claim 1, characterized in that: A steel rope (9) is fixedly connected to the lower surface of the trapezoidal groove (2), and a protective mechanism (10) is fixedly connected to one end of the steel rope (9).

3. The special protective device for laying submarine pipelines according to claim 2, characterized in that: The protective mechanism (10) includes a corrosion-resistant hexagonal shell (1001), a sandbag (1002) is provided in the middle of the corrosion-resistant hexagonal shell (1001), there are several corrosion-resistant hexagonal shells (1001), the several corrosion-resistant hexagonal shells (1001) are arranged in a linear array, and corrosion-resistant ropes (1003) are hinged between the corrosion-resistant hexagonal shells (1001).

4. A special protective device for laying submarine pipelines according to claim 1, characterized in that: Fixing bolts (11) are fixedly connected to the four corners of the lower surface of the fixing plate (3), and a drill bit (12) is fixedly connected to the lower surface of the fixing bolts (11).

5. A special protective device for laying submarine pipelines according to claim 4, characterized in that: The outer surface of the fixing bolt (11) is provided with anti-slip grooves (13).

6. A special protective device for laying submarine pipelines according to claim 1, characterized in that: A counterweight (14) is fixedly connected to the middle of the upper surface of the fixing plate (3).

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