Submarine pipeline with landslide impact prevention device

Abstract

The utility model discloses a submarine pipeline with a landslide impact prevention device, which comprises a pipeline body, the pipeline body comprises at least two guide plates and an inner concrete layer, the adjacent guide plates are connected end to end to form an annular pipe body, and the inner concrete layer is arranged in the annular pipe body formed by the guide plates. A flexible piezoelectric plate is arranged on the outer surface of the flow guide plate, a plurality of back-flushing devices are symmetrically arranged in the annular pipe body in pairs, the outer ends of the back-flushing devices are fixed to the inner wall of the annular pipe body, the flexible piezoelectric plate is electrically connected with the back-flushing devices, when being impacted by the seabed, the flexible piezoelectric plate is pressed and deformed to generate electric energy, and the electric energy is transmitted to the back-flushing devices. And activating a working mechanism of the backflushing device, and pushing the flow guide plate to move outwards until the flow guide plate is completely opened. The device not only realizes recoil protection on the pipeline, but also converts impact energy into available electric energy, so that the energy utilization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of marine rock and soil, in particular to a submarine pipeline with an anti-landslide impact device. Background Art

[0002] With the rapid development of marine engineering, deep-sea cables are emerging as an innovative tool for oil and gas transportation and communication. Although this tool brings new possibilities for energy extraction and information transmission, it faces serious safety risks from disasters such as submarine landslides during operation. Submarine landslides are a devastating marine geological disaster. After being triggered, they gradually evolve into dilute flow landslides through complex water-soil exchanges, carrying huge energy and may cause serious damage to deep-sea cables and other marine facilities. Considering the potential threat of submarine landslides to deep-sea oil and gas pipelines and communication optical cables, it is urgent to conduct in-depth research on devices and methods that can resist the impact of submarine landslides to ensure the safe construction of deep-sea cables and the further development of related theories.

[0003] However, there is currently a lack of effective pipe and cable devices and methods to resist the impact of submarine landslides, which is not conducive to the safe construction of deep-sea oil and gas pipe and cable projects and in-depth research on related theories. Therefore, it is urgent to strengthen scientific research and technological innovation in this field to meet the severe challenges posed by submarine landslides to deep-sea engineering safety. Utility Model Content

[0004] In view of the shortcomings of the background technology, the technical problem to be solved by the utility model is to provide a submarine pipeline with a landslide impact prevention device. The submarine pipeline not only realizes the recoil protection of the pipeline, but also converts the impact energy into usable electrical energy, thereby improving the energy utilization efficiency.

[0005] The utility model is completed by adopting the following technical scheme: a submarine pipeline with an anti-landslide impact device, comprising a pipeline body, the pipeline body comprising at least two guide plates and an inner concrete layer, the adjacent guide plates are connected head to tail to form an annular tube body, the inner concrete layer is arranged in the annular tube body formed by the guide plates, the outer surface of the guide plates is provided with flexible piezoelectric plates, a plurality of recoil devices are symmetrically arranged in pairs in the annular tube body, the outer ends of the recoil devices are fixed on the inner wall of the annular tube body, the flexible piezoelectric plates are electrically connected to the recoil devices, when subjected to seabed impact, the flexible piezoelectric plates are compressed and deformed to generate electrical energy, the electrical energy is transmitted to the recoil device, the working mechanism of the recoil device is activated, and the guide plates are pushed to move outward until the guide plates are fully opened.

[0006] Furthermore, a telescopic partition is provided between the connection points of adjacent guide plates, and when the guide plates move outward, the telescopic partition is extended to press against the inner concrete layer.

[0007] Furthermore, a telescopic partition is provided between the connection points of adjacent guide plates, and when the guide plates move outward, the telescopic partition is extended to press against the inner concrete layer.

[0008] Furthermore, a high-strength spring is arranged in the annular tube body.

[0009] Furthermore, the inner concrete layer is symmetrically provided with recoil grooves, the recoil device and the high-strength spring are located in the recoil grooves, and the inner ends of the recoil device and the high-strength spring are fixed to the bottom of the recoil grooves.

[0010] Furthermore, the guide plate is of streamlined design.

[0011] Furthermore, an external concrete layer is arranged outside the guide plate.

[0012] In the present invention, a flexible piezoelectric plate is combined with a recoil device. When the pipeline is impacted by a submarine landslide, the flexible piezoelectric plate is deformed to generate electricity to provide power for the recoil device, and to provide power support for the recoil protection device, thereby realizing self-powering of the deep-sea device. The recoil device obtains electric energy to drive the guide plate to move outward until the guide plate is in an open state, so that the pipeline as a whole forms a stable streamlined shape, resists external impact force, and prolongs the life of the pipeline. Compared with previous passive impact protection technologies, a more active protection response is adopted, and piezoelectric excitation anti-landslide impact technology is adopted. It can respond quickly when facing landslide impact to strengthen the protection of the pipeline, thereby significantly improving the impact resistance of the pipeline. The pipeline retains the appearance of a traditional submarine pipeline, so that when not in operation, the appearance of the device is no different from that of a traditional pipeline, and will not affect the aesthetics and operability of the engineering laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model has the following drawings:

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of a submarine pipeline with a landslide impact prevention device in a closed state;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of a submarine pipeline with a landslide impact prevention device in an open state;

[0016] Figure 3 The diagram is a structural diagram of a guide plate of a submarine pipeline with a landslide impact prevention device.

[0017] Reference numerals: guide plate 1; inner concrete layer 2; outer concrete layer 3; flexible piezoelectric plate 4; recoil device 5; high-strength spring 6; recoil slot 7; telescopic partition 8; energy storage device 9 drainage hole 10. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the utility model patent to clearly and completely describe the technical solutions in the embodiments of the utility model patent. Obviously, the described embodiments are only part of the embodiments of the utility model patent, not all of them. Based on the embodiments in the utility model patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model patent.

[0019] Reference Figure 1-3 The utility model discloses a submarine pipeline with an anti-landslide impact device, including a pipeline body, wherein the pipeline body includes at least two guide plates 1 and an inner concrete layer 2, wherein the guide plate 1 is streamlined in design, and a plurality of drainage holes 10 are arranged on the guide plate. The adjacent guide plates are connected head to tail to form an annular tube body, wherein the inner concrete layer 2 is arranged in the annular tube body formed by the guide plates, and an external concrete layer 3 is arranged outside the guide plates, wherein the outer surface of the external concrete layer is covered with an anti-corrosion layer. A flexible piezoelectric plate 4 is laid on the outer surface of the guide plate, and the flexible piezoelectric plate is located on the inner side of the external concrete layer. A plurality of recoil devices 5 and high-strength springs 6 are symmetrically arranged in pairs in the annular tube body, and the recoil device 5 is electrically connected to the flexible piezoelectric plate 4. The recoil device 5 is preferably a waterproof micro-servo electric cylinder, which has the characteristics of small size and waterproofness, and can operate stably in a submarine environment. When impacted by the seabed, the flexible piezoelectric plate 4 on the impacted side is compressed and deformed to generate electrical energy, which is transmitted to the recoil device 5, activating the working mechanism of the corresponding recoil device, pushing the guide plate on the impacted side to move outward until the guide plate is fully opened, providing a reliable protection measure for the pipeline body, thereby protecting the submarine pipeline from damage and significantly improving the impact resistance of the pipeline. The shape and structure of the guide plate design fully consider the principles of aerodynamics and hydrodynamics, and adopt a streamlined design to minimize resistance, providing a solid foundation for its long-term operation on the seabed. The exterior of the guide plate is a concrete structure. This design greatly improves the practicality and engineering applicability of the device, retains the appearance of the traditional submarine pipeline, so that in the non-working state, the appearance of the device is no different from that of the traditional pipeline, and will not affect the convenience, aesthetics and operability of the engineering laying, providing strong support for the smooth progress of the marine engineering project. At the same time, the design of the external concrete layer also has high durability and stability, can withstand various pressures and impacts in the submarine environment, ensure the reliability and durability of the device during long-term use, so that it can effectively resist the huge impact force brought by natural disasters such as submarine landslides, and protect the pipeline from damage.

[0020] The inner concrete layer 2 is symmetrically provided with a recoil groove 7, and the recoil device and the high-strength spring 6 are located in the recoil groove. The outer ends of the high-strength spring 6 and the recoil device 5 are fixed on the inner wall of the annular tube body, and the inner ends of the high-strength spring 6 and the recoil device 5 are fixed at the bottom of the recoil groove 7. When the recoil device 5 receives electric energy, it stimulates the telescopic rod inside the waterproof micro-servo electric cylinder to start working, pushing the guide plate 1 to move outward, and at the same time the high-strength spring 6 is stretched. When the landslide impact ends, the waterproof micro-servo electric cylinder loses power support and is in an inoperative state. The high-strength spring resets and drives the telescopic rod inside the waterproof micro-servo electric cylinder to return. When the high-strength spring returns to its initial state, the guide plate is in a closed state, and the high-strength spring provides a limit guarantee for the reset of the guide plate.

[0021] A telescopic partition 8 is arranged between the connection points of adjacent guide plates, and the two ends of the telescopic partition 8 are fixed to the two ends of the adjacent guide plates 1, and the telescopic partition is arranged correspondingly at the inner concrete layer (i.e., away from the position corresponding to the recoil groove). When the guide plate moves outward, the telescopic partition is extended to block the inner concrete layer to prevent the landslide soil from entering the interior of the device.

[0022] An energy storage device 9 is provided at the bottom of the recoil device. The energy storage device 9 is electrically connected to the flexible piezoelectric plate 4. The output end of the energy storage device is connected to the recoil device. The energy storage device 9 is completely sealed and isolated from seawater. When the piezoelectric plate is impacted to generate electrical energy, the recoil device is started to ensure the normal operation of the recoil device while storing excess electrical energy in the energy storage device 9. The electrical storage device can rectify and store, converting the alternating current generated by the flexible piezoelectric plate into direct current, and then through the boost circuit module, the voltage is increased to the corresponding working voltage and then collected. The stored electrical energy can realize self-power supply of the device. This allows the device to not only provide recoil protection, but also improve energy utilization, further enhancing its practicality and functionality.

[0023] Working principle: Under normal circumstances, the guide plate is in a closed state, maintaining the same overall appearance as traditional submarine pipelines. When the pipeline is impacted by a landslide, the flexible piezoelectric plate on the surface of the guide plate has the characteristics of real-time response. It can respond quickly when the pipeline is impacted by a landslide, and use the piezoelectric effect to generate electricity at the first time, greatly improving the power generation efficiency. The flexible piezoelectric plate stably converts the kinetic energy of the landslide impacting the pipeline into electrical energy through the piezoelectric effect. This converted electrical energy is transmitted to the waterproof micro-servo electric cylinder, activating the working mechanism of the recoil device. The electrical energy is transmitted to the waterproof micro-servo electric cylinder, thereby starting the operation of the electric cylinder. The excitation telescopic rod inside the electric cylinder begins to work, pushing the guide plate outward until the guide plate is fully opened, making the overall shape of the pipeline streamlined, and the telescopic partition is also extended to resist the internal concrete layer. This design ensures that when facing an impact, the device can respond quickly and effectively, resist the impact of the landslide to the greatest extent, and provide a reliable protection measure for the pipeline, thereby protecting the submarine pipeline from damage. As the impact of the landslide ends, the high-strength spring that was originally stretched under the action of electrical excitation, with the disappearance of the piezoelectric effect, the telescopic rod in the electric rod loses the force of the push rod due to the disappearance of electrical energy. At this time, the push rod force is less than the spring force. The high-strength spring resets and drives the telescopic rod to reset, driving the guide plate to close. During the closing process of the guide plate, the water flowing into the cavity is discharged from the drainage hole. Finally, the high-strength spring returns to the initial state, and the guide plate is also closed. The electric energy generated by the flexible piezoelectric plate stably supplies the waterproof micro-servo electric cylinder, and the excess electric energy is stored in the power storage device. The AC power is rectified and boosted through the internal boost module to achieve the corresponding working voltage level, completing the goal of collecting and self-powering electric energy, ensuring that the device can stably and continuously obtain power support during long-term operation, and solving the problem of unstable piezoelectric power supply.

[0024] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A submarine pipeline with a landslide impact prevention device, comprising a pipeline body, characterized in that: The pipeline body includes at least two guide plates and an inner concrete layer. The adjacent guide plates are connected head to tail to form an annular tube body. The inner concrete layer is arranged in the annular tube body formed by the guide plates. A flexible piezoelectric plate is provided on the outer surface of the guide plate. A plurality of recoil devices are symmetrically arranged in pairs in the annular tube body. The outer ends of the recoil devices are fixed on the inner wall of the annular tube body. The flexible piezoelectric plate is electrically connected to the recoil device. When impacted by the seabed, the flexible piezoelectric plate is compressed and deformed to generate electrical energy. The electrical energy is transmitted to the recoil device, activating the working mechanism of the recoil device and pushing the guide plate to move outward until the guide plate is fully opened.

2. The submarine pipeline with a landslide impact prevention device according to claim 1 is characterized in that: A telescopic partition is arranged between the connection points of adjacent guide plates. When the guide plates move outward, the telescopic partition is extended to block the inner concrete layer.

3. A submarine pipeline with a landslide impact prevention device according to claim 1 or 2, characterized in that: An energy storage device is arranged in the annular tube body, and the energy storage device is electrically connected to the flexible piezoelectric plate.

4. The submarine pipeline with a landslide impact prevention device according to claim 3 is characterized in that: A high-strength spring is arranged in the annular tube body.

5. A submarine pipeline with a landslide impact prevention device according to claim 1, 2 or 4, characterized in that: The inner concrete layer is symmetrically provided with recoil grooves, the recoil device and the high-strength spring are located in the recoil grooves, and the inner ends of the recoil device and the high-strength spring are both fixed to the bottom of the recoil grooves.

6. The submarine pipeline with a landslide impact prevention device according to claim 5 is characterized in that: The guide plate is streamlined in design.

7. The submarine pipeline with a landslide impact prevention device according to claim 6 is characterized in that: An external concrete layer is arranged outside the guide plate.

8. A submarine pipeline with a landslide impact prevention device according to claim 6 or 7, characterized in that: The recoil device is a waterproof micro servo electric cylinder.

9. The submarine pipeline with a landslide impact prevention device according to claim 8 is characterized in that: The guide plate is provided with a plurality of drainage holes.

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