Deep sea underwater power supply system

Abstract

The invention relates to the technical field of underwater charging of submersible vehicles, and discloses a deep sea underwater power supply system, which comprises a water surface guarantee facility set for bearing a power supply facility; the shipborne boosting device is used for boosting the power supply and supplying power to the seabed power supply receptor and the underwater repeater; the power supply cable winch and the portal frame are used for laying and recovering the first power supply cable; one end of the first power supply cable is connected with the shipborne boosting device, and the other end of the first power supply cable penetrates through the portal to be connected with the underwater repeater; the underwater repeater is provided with a second power supply cable for supplying power to the seabed power supply receptor; and the auxiliary ROV is arranged on a water surface guarantee facility or a seabed power supply receptor. The submarine laboratory can be charged at any time or continuously, guarantee is provided for in-situ long-period and continuous observation of the submarine laboratory in a scientific investigation sample plot, the underwater operation duration of the submarine laboratory is prolonged, the long self-sustaining operation capacity of the submarine laboratory under the large diving depth is guaranteed, and the operation efficiency of a deep sea manned scientific investigation device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of underwater charging of submersibles, and in particular to a deep-sea underwater power supply system. Background Art

[0002] The submarine laboratory is a modernized submarine scientific research facility that is fixed on the seabed or floats at a certain depth underwater for scientists and divers to rest, live and work. With the development and application of new technologies and equipment, its development has gradually shown trends such as greater diving depth and longer self-sustaining power. The development of large-capacity battery technology has made it possible for scientists to stay in the deep sea for a long time for long-term observation and experimental operations. However, due to the limitations of factors such as the size of the submersible, the number of people it carries and the weight it carries, the current number of battery models available for submarine laboratories is limited, and it is impossible to guarantee its in-situ scientific research operations on a monthly basis; in addition, unlike charging / power supply on land, the sea conditions in the deep sea are more severe and the power supply distance is longer.

[0003] In order to ensure that the seabed laboratory can conduct long-term, continuous in-situ observations at the scientific research site, obtain high-fidelity samples, and carry out in-situ experiments at the site, its support system must have the ability to charge / supply underwater operating receptors, so it is necessary to be equipped with a deep-sea underwater power supply system. Summary of the invention

[0004] The technical problem to be solved by the present invention is the difficulty in charging in an undersea laboratory.

[0005] In order to solve the above technical problems, the technical solution of the present invention is to provide a deep-sea underwater power supply system, including surface support facilities, a ship-borne booster device, a power supply cable winch, a gantry, a first power supply cable, an underwater repeater, an auxiliary ROV and a seabed power supply receptor located on the seabed, wherein:

[0006] The surface support facilities are arranged on the sea surface and are used to carry the ship-borne booster device, the power supply cable winch and the gantry;

[0007] The ship-borne boosting device is arranged on the surface support facility, and is used to boost the power supply, and provide charging power and power supply to the seabed power supply receptor and the underwater repeater respectively through the first power supply cable;

[0008] The power supply cable winch is arranged on the surface support facility and is used for laying out and recovering the first power supply cable;

[0009] The door is mounted on the water surface support facility and cooperates with the power supply cable winch to lay out and recover the first power supply cable;

[0010] The first power supply cable is arranged on the power supply cable winch, and one end of the first power supply cable is connected to the ship-borne booster device, and the other end of the first power supply cable passes through the gantry and is connected to the underwater repeater, and is responsible for power transmission and communication of the underwater repeater;

[0011] The underwater repeater is provided with a second power supply cable for supplying power to the seabed power supply receptor;

[0012] The auxiliary ROV is arranged on the surface support facility or the seabed power supply receptor, and is responsible for wet plugging and unplugging of the second power supply cable and the seabed power supply receptor.

[0013] Optionally, it also includes a display monitoring system, which is installed on the surface support facility. The display monitoring system is connected to the shipboard booster device and the power supply cable winch, and collects the voltage, current, insulation monitoring and alarm signals of the shipboard booster device through RS485 signals, and collects, monitors and controls the tension and cable release length data of the power supply cable winch.

[0014] Optionally, the underwater repeater also includes a structural frame, which includes an electric control cabin and an underwater power supply cable winch that are interconnected. The electric control cabin is connected to a first power supply cable, and the second power supply cable is wound on the underwater power supply cable winch. A tensioning wheel, a hydraulic pump station and a cable arranger are connected to the underwater power supply cable winch.

[0015] Optionally, a load-bearing head and a thruster are provided on the outside of the structural frame, the load-bearing head is connected to the first power supply cable, and at least two thrusters are provided and are evenly arranged on both sides of the structural frame.

[0016] Optionally, an optical fiber is provided in the first power supply cable, and an underwater sensor and a monitoring device are provided on the underwater repeater. The display monitoring system controls the underwater repeater through the optical fiber, and collects underwater sensor signals and underwater video information through the underwater sensor and the monitoring device.

[0017] Optionally, the underwater repeater is provided with lighting and camera equipment for observing the seabed and the status of the power supply receptor, and the lighting and camera equipment are connected to the electrical control cabin.

[0018] Optionally, the underwater repeater is provided with an altimeter, a depth gauge and a USBL beacon for determining the height, depth and distance from the power supply receptor during the deployment operation of the underwater repeater, and the altimeter, depth gauge and USBL beacon are connected to the electrical control cabin.

[0019] Optionally, the gantry is provided with an adapter that matches the underwater repeater, and the first power supply cable is an armored load-bearing cable with a buoyancy block provided thereon.

[0020] Optionally, the auxiliary ROV is provided with a mechanical arm, lighting, camera, propulsion and control system.

[0021] Optionally, the power supply cable winch is provided with a right-angle PLC cable arrangement mechanism with adaptive cable arrangement, automatic zero position calibration and cable disorder alarm functions.

[0022] In summary, the deep-sea underwater power supply system designed in the present invention can charge the seabed laboratory at any time or continuously, provide guarantee for the seabed laboratory to conduct long-term and continuous observation in situ at the scientific research site, increase the underwater operation time of the seabed laboratory, ensure its long-term self-sustaining operation capability at great diving depths, and improve the operating efficiency of deep-sea manned scientific research equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the working process of a deep sea underwater power supply system provided by the present invention;

[0024] Figure 2 An operation schematic diagram of a deep sea underwater power supply system provided by the present invention;

[0025] Figure 3 A system composition scheme diagram of a deep sea underwater power supply system provided by the present invention;

[0026] Figure 4 A general layout diagram of an underwater repeater of a deep-sea underwater power supply system provided by the present invention;

[0027] Figure 5 The invention provides an underwater repeater composition and system configuration for a deep sea underwater power supply system;

[0028] In the figure: 1. Surface support facilities; 2. Power supply cable winch; 3. Gantry; 4. First power supply cable; 5. Underwater repeater; 51. Load-bearing head; 52. Structural frame; 53. Thruster; 54. Underwater power supply cable winch; 55. Second power supply cable; 56. Tensioning wheel; 57. Hydraulic pump station; 58. Electric control cabin; 59. Cable arranger; 7. Auxiliary ROV (underwater robot); 8. Seabed power supply receptor. DETAILED DESCRIPTION

[0029] The following combination Figure 1-5 The present invention is described in further detail.

[0030] The present invention discloses a deep sea underwater power supply system, referring to Figure 2 and Figure 3 , including surface support facilities 1, a ship-borne booster device, a power supply cable winch 2, a gantry 3, a first power supply cable 4, an underwater repeater 5, an auxiliary ROV 7 and a seabed power supply receptor 8 located on the seabed. The seabed power supply receptor 8 can be a seabed laboratory or other facilities, wherein,

[0031] The surface support facility 1 is arranged on the sea surface, including a surface support vessel or a surface support platform, which is used to carry a ship-borne booster device, a power supply cable winch 2 and a gantry 3;

[0032] The shipboard boosting device is arranged on the surface support facility 1, and is used to boost the power supply, and provide charging power and power supply to the seabed power supply receptor 8 and the underwater repeater 5 through the first power supply cable 4, including the driving and control power supply of the underwater repeater 5;

[0033] The power supply cable winch 2 is arranged on the surface support facility 1, and can be installed inside or outside the cabin, and is used for laying and recovering the first power supply cable 4. Its safe working load meets the weight of the suspended section in the water after the first power supply cable 4 is lowered and the weight of the underwater repeater 5, and takes into account a certain dynamic load coefficient;

[0034] The gantry 3 is provided on the surface support facility 1, installed on the side or the stern, and cooperates with the power supply cable winch 2 to lay out and recover the first power supply cable 4. Its safety load meets the requirements for the deployment and recovery of the entire underwater power supply system;

[0035] The first power supply cable 4 is an optoelectronic composite cable, which is installed on the power supply cable winch 2, and one end is connected to the ship-borne booster device, and the other end passes through the gantry 3 and is connected to the underwater repeater 5, which is responsible for the power transmission and optical fiber communication channel between the surface and underwater. Its diameter and specifications meet the charging / supply requirements of the seabed power supply receptor 8, and the cable length meets the water depth requirements of the operating sea area, and a certain margin is left;

[0036] The underwater repeater 5 is provided with a second power supply cable 55 for supplying power to the submarine power supply receptor 8. The second power supply cable 55 is a lightweight umbilical cable, a flexible cable or a neutral cable, the specifications of which meet the charging power transmission requirements, and the length is sufficient to cover the distance between the underwater repeater 5 and the submarine power supply receptor 8, and the wet-plug plug of the charging end matches the socket model on the submarine power supply receptor 8;

[0037] The underwater repeater 5 is lowered by the gantry 3 to a certain distance from the seabed power supply receptor 8, which is recommended to be no more than 100m. It performs photoelectric separation operation on the first power supply cable 4 and then charges the seabed power supply receptor 8. It is equipped with a lightweight umbilical cable winch, a lightweight umbilical cable flexible cable or a neutral cable, a propulsion system, a hydraulic pump station group and a valve control system, an underwater strong power system, an underwater sensor and a monitoring system, etc.;

[0038] Specifically, refer to Figure 4 and Figure 5The underwater repeater 5 includes a structural frame 52, the structural frame 52 is provided with an electric control cabin 58 and an underwater power cable winch 54 which are connected to each other, the electric control cabin 58 is connected to the first power cable 4, the second power cable 55 is wound on the underwater power cable winch 54, the underwater power cable winch 54 is connected with a tensioning wheel 56, a hydraulic pump station 57 and a cable arranger 59, the structural frame 52 is provided with a bearing head 51 and a thruster 53 on the outside, the bearing head 51 is connected to the first power cable 4, at least two thrusters 53 are arranged evenly on both sides of the structural frame 52, and are used to adjust the direction relationship between the cable output direction and the seabed power supply receptor 8;

[0039] The auxiliary ROV7 is installed on the surface support facility 1 or the seabed power supply receptor 8. The auxiliary ROV7 is equipped with a mechanical arm, lighting camera, propulsion and control system, which is responsible for the wet plugging and unplugging of the second power supply cable 55 and the seabed power supply receptor 8 to achieve path connection and receptor charging in deep water environment.

[0040] In a further embodiment, it also includes a display monitoring system, which is arranged on the surface support facility 1, an optical fiber is arranged in the first power supply cable 4, and an underwater sensor and a monitoring device are arranged on the underwater repeater 5. The display monitoring system controls the underwater repeater 5 through the optical fiber, including the underwater power supply cable winch 54, underwater lights and bow control, and collects underwater sensor signals and underwater video information through the underwater sensors and monitoring devices, and performs real-time monitoring and alarm on the power output, signal processing and equipment operation status of the entire system.

[0041] In a further embodiment, the power supply cable winch 2 is arranged on the surface support facility 1 or in its winch cabin in a traction-type structure, and is powered by a variable frequency drive device, which has multiple protection functions, including overcurrent, overload, undervoltage, overvoltage, overheating, overtorque, overpower, phase loss, encoder failure, etc.; the traction and tensioning device can effectively remove the tension of the first power supply cable 4 at the cable arranger, and can ensure regular cable arrangement at the cable storage device; the power supply cable winch 2 is equipped with a deep-water equipment heave compensation function, which can automatically adjust the cable retracting and releasing according to the changes in the heave posture of the mother ship to perform active compensation, reduce the impact of wave heave on the cable, and facilitate underwater operations;

[0042] Specifically, the power supply cable winch 2 includes a traction device, a cable storage device with a lebus groove on the drum, a right-angle PLC cable arrangement mechanism with adaptive cable arrangement, automatic zero position calibration, and cable disorder alarm functions, slip rings, several guide pulleys, a local operation console and a remote control console, which can perform cable retracting and releasing operations, various alarm indications, touch screen control, emergency stop switch, cable length, cable speed and tension display, winch operation records, tension control and other operations.

[0043] In a further embodiment, the net width and net height inside the gantry 3 meet the requirements of the deployment and recovery of the underwater repeater 5, and are equipped with an adapter matching the underwater repeater 5, which can play a role in stopping the swing during the lowering and recovery of the underwater repeater 5, and prevent collision with the gantry 3 body and the side structure of the surface support facility 1; the gantry 3 also has a gantry boom length adjustment function, a gantry movement stop function, a pulley anti-cable jumping function, an auxiliary winch constant tension function, a hydraulic dual pump group backup (redundancy) function, a system emergency stop function, an information monitoring and alarm function, a gantry status information output function, and a local control + portable remote control + remote control function.

[0044] In a further embodiment, the first power supply cable 4 is an armored load-bearing cable with buoyancy blocks on it, which can ensure that it has a good configuration in the water and effectively reduce the fatigue damage caused by frequent laying and bending of the cable; when the deep-sea underwater power supply system is working, the heat generated by the power supply cable winch 2 and the eddy current of the rope stored on the drum will not have a destructive effect on its physical configuration and its own performance; the first power supply cable 4 adopts two independent power supplies, one to supply the seabed power supply receptor 8, and the other to supply the control and propulsion system of the underwater repeater 5.

[0045] In a further embodiment, the underwater repeater 5 is provided with an underwater photoelectric separation device, a lighting and a camera equipment for observing the status of the seabed and the power supply receptor, and the lighting and the camera equipment are connected to the electric control cabin; an altimeter, a depth gauge and a USBL beacon are provided for determining the height, depth and distance between the underwater repeater 5 and the power supply receptor during the deployment operation, and the altimeter, the depth gauge and the USBL beacon are connected to the electric control cabin to facilitate better connection and power supply of the deep-sea underwater power supply system. The underwater repeater 5 has a stable bottom posture, has the functions of bottom posture adjustment and anti-sinking, and can adapt to various seabed conditions.

[0046] Specifically, the output voltage of the shipboard booster device takes into account the voltage drop of deep-sea long-distance power supply and a certain design margin, and meets the voltage requirement of the seabed power supply receptor 8 for charging; the rated output power of the shipboard booster device must meet the charging power requirement of the seabed power supply receptor 8 and the power requirement of the underwater repeater 5; the underwater repeater 5 has the functions of storing and constantly tensioning the second power supply cable 55, underwater position control, power relay transmission and comprehensive monitoring of system status; the important systems and components of the underwater repeater 5 have passed a 1.25 times withstand voltage test, and its operating temperature and other conditions meet the actual requirements of deep-sea environment operations.

[0047] In a further embodiment, the display monitoring system is connected to the shipboard booster device and the power supply cable winch 2, and collects the voltage, current, insulation monitoring and alarm signals of the shipboard booster device through RS485 signals, and collects, monitors and controls various data of the power supply cable winch 2, including information such as tension and cable release length. If the shipboard booster device is installed in the cabin, the display monitoring system will also integrate the display and control of the alarm, ventilation, fire protection, etc. of the cabin where the shipboard booster device is located.

[0048] The present invention refers to the charging / power supply guarantee operation when performing Figure 1 , the surface support facility 1 keeps the dynamic positioning system turned on and remains within a certain distance above the seabed power supply receptor 8;

[0049] In the first step, the power supply cable winch 2 is started, and the power supply part of the underwater repeater 5 on the ship-borne booster device is started;

[0050] In the second step, the underwater repeater 5 connected to the adapter of the gantry 3 is swung outward from the surface support facility 1 along with the gantry 3;

[0051] In the third step, the power cable winch 2 performs the cable laying operation according to the water depth of the target sea area, and the power cable 4 is manually intermittently added with buoyancy blocks during the lowering process;

[0052] Step 4: Power supply cable winch 2 starts deep water wave compensation mode;

[0053] Step 5: After the underwater repeater 5 is lowered to the target sea area, the underwater charging / power supply operation begins;

[0054] Step 6: The underwater repeater 5 hovers and adjusts its heading before landing on the seabed;

[0055] Step 7: The underwater repeater 5 adjusts its bow direction backward and moves in a directional manner toward the seabed power supply receptor 8;

[0056] Step 8: The underwater repeater 5 reaches a certain distance around the seabed power supply receptor 8 and lands on the seabed, assisting the ROV 7 to start working;

[0057] Step 9, assisting ROV7 to control the manipulator to clamp the lightweight umbilical cable charging end on the underwater repeater 5 and pull it toward the target direction;

[0058] Step 10: The lightweight umbilical cable winch on the underwater repeater 5 performs a constant tension cable release operation;

[0059] Step 11: When the auxiliary ROV7 carrying the charging terminal reaches the socket position on the power supply receptor, a wet plugging operation is performed to complete the power supply path connection;

[0060] Step 12: The power supply of the underwater charging part of the ship-borne booster device starts supplying power;

[0061] Step 13: Charging is completed and the power supply of the underwater charging part of the ship-borne booster device is cut off;

[0062] Step 14: Unplug the auxiliary ROV7 and disconnect the power supply path;

[0063] Step 15: The lightweight umbilical cable winch on the underwater repeater 5 performs constant tension cable reeling;

[0064] Step 16: After the lightweight umbilical cable is reset, the power cable winch 2 ends the deep water wave compensation mode and performs the operation of recovering the underwater repeater 5;

[0065] Step 17: After the underwater repeater 5 is lifted out of the water and connected to the adapter of the gantry 3, it is swung inboard of the surface support facility 1 along with the gantry 3;

[0066] In the eighteenth step, the power supply cable winch 2 stops, the power supply part of the underwater repeater 5 on the ship-borne booster device stops, and the deep-sea underwater charging / power supply operation is completed.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A deep sea underwater power supply system, characterized in that: The invention comprises a surface support facility 1, a ship-borne booster device, a power supply cable winch (2), a gantry (3), a first power supply cable (4), an underwater repeater (5), an auxiliary ROV (7) and a seabed power supply receptor (8) located on the seabed, wherein: The surface support facility 1 is arranged on the sea surface and is used to carry a ship-borne booster device, a power supply cable winch (2) and a gantry (3); The ship-borne boosting device is arranged on the surface support facility 1, and is used to boost the power supply, and to provide charging power and power supply to the seabed power supply receptor (8) and the underwater repeater (5) respectively through the first power supply cable (4); The power supply cable winch (2) is arranged on the water surface support facility 1 and is used for laying out and recovering the first power supply cable (4); The gantry (3) is arranged on the water surface support facility 1, and cooperates with the power supply cable winch (2) to lay out and recover the first power supply cable (4); The first power supply cable (4) is arranged on the power supply cable winch (2), one end of which is connected to the ship-borne boosting device, and the other end of which passes through the gantry (3) and is connected to the underwater repeater (5), and is responsible for power transmission and communication of the underwater repeater (5); The underwater repeater (5) is provided with a second power supply cable (55) for supplying power to the seabed power supply receptor (8); The auxiliary ROV (7) is arranged on the surface support facility 1 or the seabed power supply receptor (8) and is responsible for wet plugging and unplugging of the second power supply cable (55) and the seabed power supply receptor (8).

2. The deep sea underwater power supply system according to claim 1, characterized in that: It also includes a display monitoring system, which is arranged on the surface support facility 1, and is connected to the shipboard booster device and the power supply cable winch (2), and collects the voltage, current, insulation monitoring and alarm signals of the shipboard booster device through RS485 signals, and collects, monitors and controls the tension and cable release length data of the power supply cable winch (2).

3. The deep sea underwater power supply system according to claim 2, characterized in that: The underwater repeater (5) also includes a structural frame (52), wherein the structural frame (52) is provided with an electric control cabin (58) and an underwater power cable winch (54) which are interconnected, wherein the electric control cabin (58) is connected to a first power cable (4), and the second power cable (55) is wound on the underwater power cable winch (54), and the underwater power cable winch (54) is connected to a tensioning wheel (56), a hydraulic pump station (57) and a cable arranger (59).

4. The deep sea underwater power supply system according to claim 3, characterized in that: A load-bearing head (51) and a thruster (53) are provided outside the structural frame (52); the load-bearing head (51) is connected to the first power supply cable (4); and at least two thrusters (53) are provided, evenly arranged on both sides of the structural frame (52).

5. The deep sea underwater power supply system according to claim 3, characterized in that: An optical fiber is arranged in the first power supply cable (4), an underwater sensor and a monitoring device are arranged on the underwater repeater (5), the display monitoring system controls the underwater repeater (5) via the optical fiber, and collects underwater sensor signals and underwater video information via the underwater sensor and the monitoring device.

6. The deep sea underwater power supply system according to claim 5, characterized in that: The underwater repeater (5) is provided with lighting and camera equipment for observing the seabed and the state of the power supply receptor, and the lighting and camera equipment is connected to the electric control cabin.

7. The deep sea underwater power supply system according to claim 5, characterized in that: The underwater repeater (5) is provided with an altimeter, a depth gauge and a USBL beacon for determining the height, depth and distance between the underwater repeater (5) and the power supply receptor during the deployment operation; the altimeter, the depth gauge and the USBL beacon are connected to the electric control cabin.

8. The deep sea underwater power supply system according to claim 1, characterized in that: The gantry (3) is provided with an adapter that matches the underwater repeater (5), and the first power supply cable (4) is an armored load-bearing cable on which a buoyancy block is provided.

9. The deep sea underwater power supply system according to claim 1, characterized in that: The auxiliary ROV (7) is provided with a mechanical arm, a lighting camera, a propulsion and a control system.

10. The deep sea underwater power supply system according to claim 1, characterized in that: The power supply cable winch (2) is provided with a right-angle PLC cable arrangement mechanism with self-adaptive cable arrangement, automatic zero position calibration and cable disorder alarm functions.

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