Protection device for crossing submarine pipe cable

Abstract

The utility model relates to the technical field of submarine pipe cable installation, in particular to a protection device for crossing a submarine pipe cable, which comprises a base, a transverse channel for a transverse pipe cable to pass through is arranged at the bottom of the base, and a longitudinal groove for a longitudinal pipe cable to pass through is arranged at the top of the base; an upper cover matched with the base is arranged above the base, and the bottom of the upper cover is provided with a longitudinal channel for a longitudinal pipe cable to penetrate through. According to the utility model, the transverse pipe cable and the longitudinal pipe cable can be separated, so that the transverse pipe cable can be protected, and the problem of risk caused by weight increase of the transverse pipe cable is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of subsea pipeline installation, in particular to a protection device for subsea pipeline crossing. Background Art

[0002] There are more and more offshore oil platforms and offshore wind turbines. These facilities all need to transmit energy or oil and gas through pipelines, which are very important subsea facilities. With the increase of regional development, in many cases, it is necessary to install a new pipeline across an existing pipeline. When the two pipelines cross, the newly laid pipeline will exert additional pressure on the original pipeline. At the same time, the newly laid pipeline will also have a suspension span at the crossing position, and the suspended span section is prone to bending deformation and damage. In order to ensure the safe operation of subsea pipelines, according to the specification requirements, it is necessary to protect the original pipeline. At present, the conventional treatment method is to place concrete blocks above the original pipeline along its direction, then form a transition gentle slope by piling sandbags, and then lay a new pipeline above it to protect the original pipeline. However, due to the relatively high edge of the concrete block, and the block pressing on the pipeline will increase the weight of the underlying pipeline, which brings risks to its safe operation. Content of the Utility Model

[0003] In order to solve the problem in the above background art that the block pressing on the pipeline will increase the weight of the underlying pipeline and bring risks to its safe operation, the utility model provides a protection device for subsea pipeline crossing.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A protection device for subsea pipeline crossing includes a base. A transverse channel for a transverse pipeline to pass through is formed at the bottom of the base, and a longitudinal groove for a longitudinal pipeline to pass through is formed at the top of the base. An upper cover matched with the base is arranged above the base, and a longitudinal channel for a longitudinal pipeline to pass through is formed at the bottom of the upper cover.

[0006] Preferably, side support plates are arranged on both the left and right sides of the longitudinal groove on the base.

[0007] Preferably, the cross-sectional shape of the longitudinal groove is arc-shaped.

[0008] Preferably, a hoisting through hole is formed on the base, and a smooth transition section is arranged at the edge of the hoisting through hole.

[0009] Preferably, a plurality of anti-slip platforms are fixed on both sides of the longitudinal groove at the bottom of the base.

[0010] Preferably, the anti-slip platform has a taper.

[0011] Preferably, anti-slip legs are provided at the four corners of the bottom of the upper cover, and a longitudinal channel is formed between two anti-slip legs on the same side; side sealing plates that cooperate with the side support plates are provided at both the front and rear ends of the bottom of the upper cover.

[0012] Preferably, the anti-slip legs have a taper.

[0013] Preferably, process steps are provided around the top of the upper cover, and lifting rings are fixed in the process steps.

[0014] Preferably, cement weights are provided on both the left and right sides of the base on the transverse cable.

[0015] Advantages of the present utility model:

[0016] (1) In the present utility model, the transverse cable can be separated from the longitudinal cable through the base, so as to protect the transverse cable, and the problem of the risk caused by increasing the weight of the transverse cable can be avoided. The longitudinal cable can be protected through the upper cover.

[0017] (2) In an embodiment of the present utility model, side support plates are provided on both the left and right sides of the longitudinal groove on the base, which can play a role in laterally limiting the longitudinal cable, so that the longitudinal cable will not come out laterally.

[0018] (3) In an embodiment of the present utility model, the cross-sectional shape of the longitudinal groove is arc-shaped, so that the longitudinal cable can have a smooth transition without local stress concentration.

[0019] The present utility model can separate the transverse cable from the longitudinal cable, so as to protect the transverse cable and avoid the problem of the risk caused by increasing the weight of the transverse cable. Description of the drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model.

[0021] Figure 2 is an exploded view of the present utility model.

[0022] Figure 3 is a schematic diagram of the first perspective of the base.

[0023] Figure 4 is a schematic diagram of the second perspective of the base.

[0024] Figure 5 is a schematic diagram of the first perspective of the upper cover.

[0025] Figure 6 is a schematic diagram of the second perspective of the upper cover.

[0026] In the figure: 1 - seabed, 2 - transverse cable, 3 - base, 31 - transverse channel, 32 - longitudinal groove, 4 - longitudinal cable, 5 - upper cover, 51 - longitudinal channel, 34 - lifting through-hole, 35 - smooth transition section, 36 - anti-slip platform, 52 - anti-slip support leg, 53 - side sealing plate, 54 - process step, 55 - lifting ring, 6 - cement weight. Detailed implementation manners

[0027] The following further describes the present utility model with reference to the accompanying drawings.

[0028] As Figure 1 - Figure 2 shown, the present utility model provides an embodiment:

[0029] A protection device for undersea cable crossing, comprising a base 3. A transverse channel 31 for the transverse cable 2 to pass through is formed at the bottom of the base 3, and a longitudinal groove 32 for the longitudinal cable 4 to pass through is provided at the top of the base 3; an upper cover 5 matching with the base 3 is arranged above the base 3, and a longitudinal channel 51 for the longitudinal cable 4 to pass through is formed at the bottom of the upper cover 5. The base 3 can separate the transverse cable 2 from the longitudinal cable 4, so as to protect the transverse cable 2 and avoid the problem of the risk brought by increasing the weight of the transverse cable 2. The upper cover 5 can protect the longitudinal cable 4.

[0030] As Figure 3 - Figure 4 shown, in an embodiment of the present utility model, side support plates are provided on both the left and right sides of the longitudinal groove 32 on the base 3, which can play a lateral limiting role on the longitudinal cable 4, so that the longitudinal cable 4 will not come out laterally.

[0031] In an embodiment of the present utility model, the cross-sectional shape of the longitudinal groove 32 is arc-shaped, so that the longitudinal cable 4 can have a smooth transition and there will be no local stress concentration.

[0032] In this embodiment, the cross-sectional shape of the side support plate can be trapezoidal, which can cooperate with the arc-shaped longitudinal groove 32, so as to better play a lateral limiting role on the longitudinal cable 4.

[0033] In an embodiment of the present utility model, a lifting through-hole 34 is formed on the base 3, which is convenient for lifting after the sling passes through the lifting through-hole 34. A smooth transition section 35 is provided at the edge of the lifting through-hole 34 to prevent hard damage to the sling.

[0034] In an embodiment of the present utility model, a plurality of anti-slip platforms 36 are fixed on both sides of the longitudinal groove 32 at the bottom of the base 3, which are convenient for embedding into the seabed 1.

[0035] In this embodiment, the anti-slip platform 36 can have a taper, and can remain stable after the anti-slip platform 36 is embedded into the seabed 1.

[0036] As Figure 5 - Figure 6 shown, in an embodiment of the present utility model, anti-slip legs 52 are provided at the four corners of the bottom of the upper cover 5, facilitating embedding into the seabed 1; a longitudinal channel 51 is formed between two anti-slip legs 52 on the same side; both the front and rear ends of the bottom of the upper cover 5 are provided with side sealing plates 53 that cooperate with the side support plates. The two side support plates are located between the two side sealing plates 53 and are respectively in contact with the corresponding two side support plates, which can prevent the base 3 from moving horizontally.

[0037] In this embodiment, the anti-slip legs 52 can have a taper, which can maintain stability after the anti-slip legs 52 are embedded into the seabed 1.

[0038] In an embodiment of the present utility model, process steps 54 are provided around the top of the upper cover 5 to meet the space requirements of the lifting hanging buckle. A lifting ring 55 is fixed in the process steps 54, facilitating lifting.

[0039] In an embodiment of the present utility model, cement blocks 6 are provided on both the left and right sides of the base 3 on the transverse cable 2. The cement blocks 6 can protect the transverse cable 2 and strengthen the fixing of the transverse cable 2.

[0040] In an embodiment of the present utility model, both the base 3 and the upper cover 5 are made of reinforced concrete, which can improve the strength.

[0041] In an embodiment of the present utility model, rubber pads can be bonded in the transverse channel 31, the longitudinal groove 32, and the longitudinal channel 51, which can avoid abrasion of the outer skins of the transverse cable 2 and the longitudinal cable 4 and improve safety.

[0042] The above are only the preferred embodiments of the present utility model and should not be construed as limitations to this application. Any equivalent changes and modifications made in accordance with the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A protective device for submarine cable crossing, characterized in that: It comprises a base, the bottom of which is provided with a transverse channel for transverse pipes and cables to pass through, and the top of which is provided with a longitudinal groove for longitudinal pipes and cables to pass through; an upper cover matching with the base is arranged above the base, and the bottom of the upper cover is provided with a longitudinal channel for longitudinal pipes and cables to pass through.

2. A protective device for submarine cable crossing according to claim 1, characterized in that: The base is provided with side support plates on both the left and right sides of the longitudinal groove.

3. A protective device for submarine cable crossing according to claim 1 or 2, characterized in that: The cross-sectional shape of the longitudinal groove is arc-shaped.

4. A protective device for submarine cable crossing according to claim 1 or 2, characterized in that: A hoisting through hole is provided on the base, and a smooth transition section is provided at the edge of the hoisting through hole.

5. A protection device for submarine cable crossing according to claim 1 or 2, characterized in that: A plurality of anti-slip platforms are fixed on both sides of the bottom of the base and the longitudinal groove.

6. A protection device for submarine cable crossing according to claim 5, characterized in that: The anti-slip platform is tapered.

7. A protection device for submarine cable crossing according to claim 2, characterized in that: The four corners of the bottom of the upper cover are provided with anti-skid legs, and the longitudinal channel is formed between the two anti-skid legs on the same side; the front and rear ends of the bottom of the upper cover are provided with side sealing plates matched with the side support plates.

8. A protection device for submarine cable crossing according to claim 7, characterized in that: The anti-slip legs are tapered.

9. A protective device for submarine cable crossing according to claim 1, 7 or 8, characterized in that: Process steps are provided around the top of the upper cover, and hanging rings are fixed inside the process steps.

10. A protection device for submarine cable crossing according to claim 1, characterized in that: Cement blocks are arranged on both sides of the left and right sides of the base on the transverse pipe and cable.

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