Dynamic positioning device for local arbitrary attitude control of marine pipe cable

Abstract

The invention discloses a dynamic positioning device for local arbitrary attitude control of a marine pipe cable, and belongs to the field of attitude control of the marine pipe cable. The device is composed of a fixing ring, an axial movement propeller, an inclination angle adjusting propeller and sensing equipment. The sensing equipment is integrated on the outer side of the fixing ring and can measure the inclination angle change and the water flow velocity of the marine pipeline or the composite cable; the axial motion propeller and the inclination angle adjusting propeller are both mounted on the outer side of the fixing ring, and each propeller comprises a protective shell, a propeller, a motor and a fixing device; the underwater attitude of the marine pipeline or the composite cable is measured through the sensing device and the water surface platform monitoring device, then the propeller controls the device to move to a key position and adjust the inclined attitude and the horizontal position of the device, and then the local attitude of the pipeline cable is controlled to influence the overall configuration change. In addition, the surface of the device is provided with an anti-fouling and anti-seawater-corrosion coating, so that the durability of the device in the marine environment is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of dynamic positioning of marine pipelines and composite cables, and in particular to a local attitude dynamic positioning technology of marine pipelines and composite cables. Background Art

[0002] In the field of marine mining, the posture control of marine cables is extremely critical. As an important component connecting the offshore platform and the seabed mining equipment, the posture of the marine cables directly affects the stability and efficiency of the mining operation. In deep-sea mining, the cables need to maintain a specific posture to ensure stable operation of the equipment and smooth data and energy transmission.

[0003] The solution of traditional marine armored optoelectronic composite cables and marine pipelines relying on floating bodies to control the configuration posture has significant disadvantages. On the one hand, the posture cannot be adjusted in real time. The marine environment is complex and changeable. Factors such as ocean currents and waves change the configuration posture of pipes and cables at any time, affecting the safety of mining operations, but the floating body cannot respond in time. On the other hand, it is greatly affected by water flow. In areas with strong water flow, the floating body is easily washed away from its original position, causing the posture of pipes and cables to change, affecting the normal operation.

[0004] To solve these problems, the present invention proposes a dynamic positioning device for controlling the local arbitrary posture of marine cables. The device can monitor the posture of marine pipelines or composite cables in real time by integrating sensing equipment and thrusters, and make precise adjustments according to actual conditions. The sensing equipment can measure the change in inclination angle and the flow rate of water, and the thruster can control the movement of the equipment to the key position, adjust the inclination posture and horizontal position, so as to achieve precise control of the local posture of the cable, and then control the change of the overall configuration of the cable. Summary of the invention

[0005] Based on this, it is necessary to provide a dynamic positioning device with local arbitrary posture control of marine cables to solve the above problems.

[0006] A dynamic positioning device for controlling the local arbitrary posture of a marine cable comprises a fixing ring, an axial motion propeller, an inclination adjustment propeller and a sensing device.

[0007] The axial motion propeller and the inclination adjustment propeller are both installed on the outside of the fixing ring, and the sensing device is integrated on the outside of the fixing ring; the sensing device includes an inclination sensor and a flow meter, which can measure the inclination change and water flow rate of the marine pipeline or composite cable; the axial motion propeller and the inclination adjustment propeller include a protective casing, a propeller, a motor and a fixing device.

[0008] In one embodiment, the entire device operates as follows:

[0009] S1: The configuration and posture of the marine pipeline or composite cable are monitored in real time through sensing equipment and monitoring equipment on the surface platform. When the configuration needs to be changed, the surface platform issues instructions to the equipment;

[0010] S2: The axial motion thruster controls the equipment to move to the key position, and the inclination adjustment thruster adjusts the equipment's inclination posture and horizontal position, controls the local posture of the duct and cable, and thus controls the overall configuration change of the duct and cable.

[0011] In one embodiment, the surface of the device has an anti-fouling and anti-seawater corrosion coating.

[0012] The above-mentioned dynamic positioning device for local arbitrary posture control of marine cables has the following effects:

[0013] 1. The operation of this device relies on a highly intelligent and dynamically adaptive workflow. It integrates high-precision inclination sensors and flow rate sensors to build a monitoring system that can fully perceive the working conditions of pipes and cables.

[0014] 2. The axial motion thruster and the inclination adjustment thruster are installed on the outside of the fixed ring. The layout and orientation of the two can be optimized through simulation experiments so that they can achieve the best mechanical effect when adjusting the posture of the pipe and cable, and realize the function of the device moving quickly along the pipe and cable and adjusting the inclination posture and horizontal displacement.

[0015] 3. The fixing ring of the device is two semicircular rings that are threaded onto the pipe and cable, which facilitates installation. For pipes and cables of different sizes, the size and power of the device can be changed to cope with different scenarios; BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall diagram of the device in the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the axial motion propeller in the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the inclination angle adjustment propeller in the present invention.

[0019] In the attached figure: 1- axial motion propeller, 2- fixing ring, 3- sensor, 4- tilt adjustment propeller, 5- protective casing, 6- propeller, 7- motor, 8- fixing device DETAILED DESCRIPTION

[0020] Combine the following Figure 1 Figure 3To further describe the present invention, the present invention relates to a dynamic positioning device for local arbitrary posture control of a marine cable, comprising a fixed ring 2, an axial motion propeller 1, an inclination adjustment propeller 4 and a sensor device 3; the axial motion propeller 1 and the inclination adjustment propeller 4 are both installed on the outside of the fixed ring 2, and the sensor device 3 is integrated on the outside of the fixed ring 2.

[0021] The sensing device 3 integrates an inclination sensor and a current meter, and can measure the inclination change of the marine pipeline or composite cable and the water flow rate. The axial motion propeller 1 and the inclination adjustment propeller 4 include a protective shell 5, a propeller 6, a motor 7 and a fixing device 8. The fixing ring 2 of the device is two semicircular rings that are threadedly connected on the pipe and cable, and adopts a convenient modular structure, which is convenient for initial installation and subsequent maintenance and repair.

[0022] The embodiments described above are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims

1. A dynamic positioning device for local arbitrary posture control of a marine cable, comprising a fixing ring (2), an axial motion propeller (1), an inclination adjustment propeller (4) and a sensor device (3); the axial motion propeller (1) and the inclination adjustment propeller (4) are both installed outside the fixing ring (2), and the sensor device (3) is integrated on the fixing ring (2).

2. A dynamic positioning device for local arbitrary posture control of marine cables according to claim 1, characterized in that The sensing device (3) comprises an inclination sensor and a flow meter.

3. A dynamic positioning device for local arbitrary posture control of marine cables according to claim 1, characterized in that: The axial motion propeller (1) and the tilt angle adjustment propeller (4) comprise a protective casing (5), a propeller (6), a motor (7) and a fixing device (8).

4. A dynamic positioning device for local arbitrary posture control of marine cable according to claim 1, characterized in that The working principle is as follows: S1: Monitor the configuration and posture of the marine pipeline or composite cable in real time through sensing equipment and monitoring equipment on the surface platform, and issue instructions to the equipment when the configuration needs to change; S2: The device controls the axial motion thruster (1) through a pre-set control program to control the device to move to a key position, and the inclination adjustment thruster (4) adjusts the device's inclination posture and horizontal position, controls the local posture of the duct and cable, and thus controls the overall configuration change of the duct and cable.

5. A dynamic positioning device for local arbitrary posture control of marine cable according to claim 1, characterized in that The surface of the device has an anti-fouling and anti-seawater corrosion coating.

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