Magnetic levitation eliminating type operation system for ship

Abstract

The utility model provides a ship magnetic levitation eliminating type operation system. The ship magnetic levitation eliminating type operation system comprises a dock type platform, a cable frame, a magnetic sensor and a cable coil. The number of the cable frames is multiple, the multiple cable frames are arranged at intervals in the extending direction of the dock type platform, the dock type platform is provided with a sinking chamber, and the cable coil is wound along the inner walls of the cable frames and the sinking chamber to form a closed-loop spiral coil. The multiple magnetic sensors are arranged at the bottom of the sinking chamber and are arranged in an array mode in the distribution direction of the cable frame. The problems that in the prior art, ship demagnetization efficiency is low, and ship maneuverability is poor in the demagnetization process are solved.

Description

Technical Field

[0001] This utility model relates to the field of ship demagnetization technology, and in particular to a ship demagnetization floating operation system. Background Technology

[0002] Ships are typically made of steel. Due to the Earth's magnetic field, magnetism accumulates on the hull, creating a magnetic field that can easily damage magnetic fuses. To improve a ship's magnetic protection capabilities and ensure navigational safety, newly built or repaired ships, as well as ships that have served a certain period, must be demagnetized. Therefore, the technological upgrading of ship demagnetization equipment has become an inevitable trend. The commonly used ship demagnetization technology works by using a demagnetizing cable to form a helical coil around the ship's outer circumference. Utilizing electromagnetic field theory, a large alternating current is transmitted through the demagnetizing cable to create an alternating magnetic field. This disrupts and weakens the inherent magnetism formed on the ship after prolonged use due to its interaction with the Earth's magnetic field, thus achieving demagnetization.

[0003] During ship degaussing operations, dedicated degaussing wharves or temporary cable wrapping are generally used. Dedicated degaussing wharves have high infrastructure requirements and are costly to build, and there are relatively few such wharves in China, leading to severe queues for degaussing. Temporary cable wrapping requires selecting a suitable sea area and temporarily wrapping a working coil around the ship's exterior for magnetic treatment. This method requires a large amount of manual labor, is very slow, and easily damages the degaussing cable, rendering the ship immobile. Even for small-tonnage ships, degaussing each vessel takes 2-3 days. Furthermore, because the ship is bound to the cable during degaussing, it is difficult to maneuver in emergencies, putting it in a very dangerous situation. While this problem is not prominent under normal circumstances, it presents a serious challenge in emergency situations or unforeseen events, requiring the degaussing of a large number of ships in a short period.

[0004] It is evident that existing technologies suffer from problems such as low demagnetization efficiency and poor maneuverability of ships during the demagnetization process. Utility Model Content

[0005] This invention provides a floating demagnetization system for ships, which solves the problems of low demagnetization efficiency and poor maneuverability of ships during the demagnetization process in the prior art.

[0006] This utility model provides a floating demagnetization operation system for ships, including a dock platform, a cable frame, a magnetic sensor, and a cable coil; during demagnetization, the ship to be demagnetized is located inside the closed-loop spiral coil.

[0007] The cable frame consists of multiple cable frames, which are spaced apart along the extension direction of the dock platform. The dock platform has a sinking chamber, and the cable coil is wound along the inner wall of the cable frame and the sinking chamber to form a closed-loop helical coil.

[0008] There are multiple magnetic sensors, which are located at the bottom of the sink chamber and arranged in an array along the distribution direction of the cable frame.

[0009] The floating degaussing system provided by this utility model offers a more portable, mobile, and flexible operating environment for ship degaussing operations. It eliminates the need for manual on-site coil winding, greatly reducing degaussing work, improving degaussing efficiency, and reducing ship degaussing dwell or queuing time. Furthermore, the floating degaussing system provided by this utility model avoids physical contact between the spiral coil and the ship to be degaussed through a pre-set closed-loop spiral coil, or in other words, avoids the closed-loop spiral coil from winding around the hull surface of the ship to be degaussed. This improves the ship's maneuverability, allowing it to exit the degaussing process at any time without disassembling the coil, greatly improving rapid deployment efficiency and solving emergency degaussing needs.

[0010] Optionally, the cable frame is a U-shaped bracket, with both ends of the U-shaped bracket fixed to the platform surface located outside the sunken room in the dock platform.

[0011] Optionally, the cable frame is provided with a first cable groove, and the inner wall of the sunken chamber is provided with a second cable groove, and the cable coil is installed in the first cable groove and the second cable groove.

[0012] The first and second grooves can wrap around the cable coil to protect it from damage and improve its service life.

[0013] Optionally, the multiple magnetic sensors include multiple magnetic sensor groups, and each magnetic sensor group includes multiple magnetic sensors;

[0014] Along a distribution direction perpendicular to the cable frame, multiple magnetic sensors in each magnetic sensor group are distributed on both sides of the corresponding cable frame.

[0015] Optionally, the ship demagnetization buoy operation system also includes a bollard, which is installed on the platform surface outside the sinkhole of the dock platform and located between two adjacent cable frames.

[0016] Optionally, buffer pads are provided on both opposite side walls of the sinking chamber.

[0017] Optionally, there may be multiple buffer pads, with at least one buffer pad between each pair of adjacent cable frames.

[0018] Optionally, the ship demagnetization buoyancy operation system also includes a tugboat winch, which is located on the platform surface outside the sinkhole in the dock platform, along the distribution direction of the cable frame, at the bow and / or stern of the dock platform.

[0019] Optionally, the ship demagnetization buoyancy operation system includes a connecting bridge along the distribution direction of the cable frame, the connecting bridge being located at the bow and / or stern of the dock platform; the connecting bridge includes a first bridge section and a second bridge section, one end of the first bridge section being rotatably connected to a first side wall of the sinking chamber, and one end of the second bridge section being rotatably connected to a second side wall of the sinking chamber, the first side wall and the second side wall being opposite to each other.

[0020] The connecting bridge can switch between an open state and a closed state under external force. When the connecting bridge is in the open state, the second end of the first bridge segment is away from the second end of the second bridge segment; when the connecting bridge is in the closed state, the second end of the first bridge segment is connected to the second end of the second bridge segment.

[0021] Optionally, the ship demagnetization buoyancy operation system also includes an anchoring device, with the dock platform connected to and secured to the target sea area by the anchoring device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the planar structure of the ship demagnetization buoyancy operation system according to an embodiment of this utility model;

[0023] Figure 2 This is a first side view of the ship demagnetization buoyancy operation system according to an embodiment of the present utility model;

[0024] Figure 3 This is a second side view of the ship demagnetization buoyancy operation system according to an embodiment of the present utility model;

[0025] Figure 4a This is a schematic diagram of the docking process when using the ship demagnetization buoyancy operation system according to an embodiment of this utility model. Figure 1 ;

[0026] Figure 4b This is a schematic diagram of the docking process when using the ship demagnetization buoyancy operation system according to an embodiment of this utility model. Figure 2 ;

[0027] Figure 4c This is a schematic diagram of the docking process when using the ship demagnetization buoyancy operation system according to an embodiment of this utility model. Figure 3 ;

[0028] Figure 4d This is a schematic diagram of the docking process for the ship demagnetization buoyancy operation system according to an embodiment of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1: Ship demagnetization buoyancy operation system;

[0031] 11: Dock platform; 110: Sinking chamber; 12: Cable frame; 120: Cable coil; 13: Magnetic sensor; 141: First cable trough; 142: Second cable trough; 15: Mooring bollard; 16: Buffer pad; 17: Towing winch; 18: Connecting temporary bridge; 181: First bridge section; 182: Second bridge section; 19: Anchoring device;

[0032] 2: Ships to be demagnetized; 3: Tugs. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0034] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0036] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] This utility model provides a ship demagnetization buoyancy operation system 1. Please refer to [link / reference]. Figures 1-3It includes a docking platform 11, a cable frame 12, a magnetic sensor 13, and a cable coil 120.

[0040] There are multiple cable frames 12, which are spaced apart along the extension direction of the dock platform 11, such as... Figure 2 and Figure 3 As shown, the dock platform 11 has a sinking chamber 110, and the cable coil 120 is wound along the inner wall of the cable frame 12 and the sinking chamber 110 to form a closed-loop spiral coil; during demagnetization, the ship to be demagnetized 2 is located inside the closed-loop spiral coil.

[0041] like Figure 2 and Figure 3 As shown, and see Figure 1 It is understood that there are multiple magnetic sensors 13, which are located at the bottom of the sunken chamber 110 and along the distribution direction of the cable frame 12 (i.e., Figure 2 (In the direction indicated by the middle arrow) Array settings.

[0042] Those skilled in the art will understand that the bottom of the sinking chamber 110 can be understood as the dock bottom of the dock platform 11, the side wall of the sinking chamber 110 can be understood as the dock wall of the dock platform 11, and the remaining dock platform area outside the sinking chamber 110 can be understood as the dock top of the dock platform.

[0043] The floating demagnetizing system 1 provided by this utility model offers a more portable and flexible operating environment for ship demagnetization, eliminating the need for manual on-site coil winding, greatly reducing demagnetization work, improving demagnetization efficiency, and reducing ship demagnetization dwell or queuing time. Furthermore, the floating demagnetizing system provided by this utility model avoids physical contact between the spiral coil and the ship 2 to be demagnetized through a pre-set closed-loop spiral coil, or in other words, avoids the closed-loop spiral coil from winding around the hull surface of the ship 2 to be demagnetized, thereby improving the ship's maneuverability. The system can exit the demagnetization process at any time without disassembling the coil, greatly improving rapid deployment efficiency and solving emergency demagnetization needs.

[0044] All of the above structures and equipment are made of non-magnetic or low-magnetic materials, such as aluminum alloys and stainless steel.

[0045] In one embodiment, the cable frame 12 includes multiple frames, and those skilled in the art will understand that a frame is a frame facade composed of columns and beams in a steel structure. Figure 3 As shown, the cable frame 12 is a U-shaped bracket, with both ends of the U-shaped bracket fixed to the platform surface outside the sinking chamber 110 in the dock platform 11. In other alternative embodiments, the cable frame 12 can also be other shapes, such as C-shaped, straight, or zigzag, as long as the cable coil can be wound on it to form a closed-loop helical coil, it does not depart from the scope of the present invention.

[0046] Those skilled in the art will understand that the dock platform 11 is liftable and has a water storage space inside, and the height of the dock platform 11 at sea level can be adjusted by changing the amount of water stored.

[0047] The cable coil 120 can be hung on the cable frame 12, or it can be tied to the cable frame 12 by external connectors such as metal fixing rings or fiber binding straps. In one embodiment, the cable frame 12 is provided with a first cable groove 141, which is located on the inner side of the cable frame 12. A second cable groove 142 is provided on the inner wall of the recessed chamber 110, and the cable coil 120 is installed in the first cable groove 141 and the second cable groove 142. In one embodiment, both the first cable groove 141 and the second cable groove 142 are fiberglass cable grooves.

[0048] The cable coil can be wrapped by the first groove 141 and the second groove 142 to protect it from damage and improve its service life.

[0049] In one implementation, please refer to Figure 1 The multiple magnetic sensors 13 include multiple magnetic sensor groups, and each magnetic sensor group includes multiple magnetic sensors 13. They are distributed along a direction perpendicular to the cable frame (e.g., Figure 1 (As indicated by the middle arrow), multiple magnetic sensors 13 in each magnetic sensor group are distributed on both sides of the corresponding cable frame 12. Alternatively, it can be understood that a row of magnetic sensors is distributed on both sides of each cable frame 12. In other alternative embodiments, multiple magnetic sensors 13 are arranged at equal intervals along the bottom of the sunken chamber 110 to form a sensor array.

[0050] During demagnetization, a constant current is passed through the cable coil. This current generates a magnetic field. When the direction of this magnetic field is opposite to the original fixed magnetic field inside the hull, the magnetic field magnetizes the ship from the opposite direction, eliminating its original inherent magnetism. Magnetic sensor 13 detects the current magnetic field data of the ship to be demagnetized (2) and sends this data to the controller. The controller controls the electromagnetic coil to demagnetize the ship (2) based on the detected current magnetic field data and the preset target magnetic field data. Specifically, the controller can control the magnitude of the current or the duration of the energization of the electromagnetic coil. After demagnetization is complete, the magnetic sensor 13 can be used again to detect the ship's magnetic field data to determine if the target value has been achieved.

[0051] In a further implementation, such as Figure 1 and Figure 2As shown, the ship degaussing floating operation system 1 also includes a bollard 15, which is installed on the platform surface (or dock top) outside the sinkhole of the dock platform and located between two adjacent cable frames 12. The bollard 15 is used to fix the ship in the target position during the degaussing process.

[0052] In one implementation, please refer to Figures 1-3 Buffer pads 16 are provided on both opposite side walls (or dock walls) of the sinkhole 110. The buffer pads 16 are used to protect the vessel from damage caused by collisions when it sways due to wind and waves during demagnetization. The buffer pads 16 can be, for example, rubber fenders. In a further embodiment, there can be multiple buffer pads 16; specifically, at least one buffer pad 16 is provided between each pair of adjacent cable frames 12.

[0053] In one implementation, such as Figures 1-3 As shown, the ship demagnetization buoyancy operation system 1 also includes a tugboat winch 17, which is located on the platform surface outside the sinking chamber 110 in the dock platform 11, along the distribution direction of the cable frame 12 (e.g., Figure 1 or Figure 2 (In the direction indicated by the middle arrow), the tugboat winch 17 is located at the bow and / or stern of the dock platform 11.

[0054] In one implementation, such as Figure 1 and Figure 2 As shown, the ship demagnetization buoyancy operation system 1 also includes a connecting bridge 18, which runs along the distribution direction of the cable frame (e.g., Figure 1 (As indicated by the middle arrow), the connecting bridge 18 is located at the head and / or tail of the dock platform 11. The connecting bridge 18 includes a first bridge section 181 and a second bridge section 182. One end of the first bridge section 181 is rotatably connected to the first side wall of the sinking chamber 110, and one end of the second bridge section 182 is rotatably connected to the second side wall of the sinking chamber 110. The first side wall and the second side wall are opposite to each other.

[0055] The connecting bridge 18 can switch between an open state and a closed state under external force. Figure 1 The diagram shows the merged state. When the connecting bridge 18 is in the open state, the second end of the first bridge segment 181 is away from the second end of the second bridge segment 182. When the connecting bridge 18 is in the merged state, the second end of the first bridge segment 181 is connected to the second end of the second bridge segment 182, as shown. Figure 1 The enclosed area forms a triangular bridge. In one embodiment, the second end of the first bridge segment 181 and the second end of the second bridge segment 182 are both hinged to the corresponding sidewall of the sunken chamber 110. In other alternative embodiments, they can also be rotatably connected in other ways, as long as the relative movement of the second ends of the first bridge segment 181 and the second ends of the second bridge segment 182 can be satisfied, it does not depart from the scope of the present utility model embodiment.

[0056] The connecting bridge 18 is used to facilitate the movement of operators on the dock platform 11 during ship demagnetization, reducing the walking distance during operation. For example, after the dock platform 11 is sunk, it connects the tops of the dock on both sides, providing a manual operation channel, which helps to improve the efficiency of ship demagnetization. When the demagnetization is finished, the connecting bridge can be adjusted to the open state to allow the ship to sail out of the dock.

[0057] For further implementation methods, please refer to Figures 4a to 4d The ship demagnetization floating operation system 1 also includes an anchoring device 19, and a dock platform 11 is connected to the anchoring device 19 and fixed to the target sea area through the anchoring device 19.

[0058] The following is an example of a ship demagnetization process. Please refer to [link / reference]. Figures 4a to 4d and combined Figure 1 and Figure 2 It is understood that during the ship degaussing process, the ship degaussing floating operation system 1 is positioned in the target sea area via the anchoring device 19, and the operators can travel to and from the target area via the connecting temporary bridge 18. To minimize the impact of sea conditions, the angle between the ship degaussing floating operation system 1 and the main wave direction is kept as small as possible. Figure 4b As shown, when the degaussing vessel 2 sails to the vicinity of the ship degaussing buoyancy operation system 1, two cables are extended from the bow and connected to the tug winch 17 of the ship degaussing buoyancy operation system 1. With the assistance of the tugboat 3, the docking angle is controlled. Then, as... Figure 4c As shown, the vessel 2 to be degassed slowly enters the dock under the traction of the tug winch 17, while the tugboat 3 assists in adjusting the vessel's docking angle from the outside. Then, as... Figure 4d As shown, after the degaussing vessel 2 has fully entered the dry dock, the tug winch 17 stops working. Once the bow cable, cross cable, and stern cable of the degaussing vessel 2 are secured to the mooring bollards 15 of the vessel's degaussing floating operation system 1, preparations for the degaussing operation can begin simultaneously. After the degaussing operation is completed, the vessel, assisted by the tugboat 3, slowly departs from the vessel's degaussing floating operation system 1.

[0059] The floating demagnetizing system for ships provided by this utility model is easily deployable with the assistance of tugboats, making it particularly suitable for demagnetizing ships in emergency situations. It offers significant emergency benefits. Since it eliminates the need for temporary cable wrapping around the ship's hull, it reduces the workload of demagnetizing personnel, shortens the demagnetizing time, and achieves excellent demagnetizing results. Once the floating system is built and operational, it requires minimal supporting infrastructure, can be repeatedly deployed, and has low maintenance costs, resulting in good economic benefits.

[0060] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A vessel degaussing floating work system, characterized in that, Includes docking platform, cable frame, magnetic sensor and cable coil; The cable frames are multiple, and the multiple cable frames are spaced apart along the extension direction of the dock platform. The dock platform has a sinking chamber. The cable coil is wound along the inner wall of the cable frame and the sinking chamber to form a closed-loop helical coil. During demagnetization, the vessel to be demagnetized is located inside the closed-loop helical coil. The magnetic sensors are multiple, and the multiple magnetic sensors are arranged in an array at the bottom of the sinking chamber along the distribution direction of the cable frame.

2. Ship degaussing floating work system according to claim 1, characterized in that, The cable frame is a U-shaped bracket, and both ends of the U-shaped bracket are fixed to the platform surface located outside the sunken room in the dock platform.

3. The vessel degaussing floating system of claim 1, wherein, The cable frame is provided with a first cable groove, and the inner wall of the sunken chamber is provided with a second cable groove. The cable coil is installed in the first cable groove and the second cable groove.

4. The vessel degaussing floating system of claim 1, wherein, The plurality of magnetic sensors include a plurality of magnetic sensor groups, and each magnetic sensor group includes a plurality of magnetic sensors; Along a distribution direction perpendicular to the cable frame, multiple magnetic sensors in each magnetic sensor group are distributed on both sides of the corresponding cable frame.

5. The vessel degaussing floating system of claim 1, wherein, It also includes a mooring bollard, which is installed on the platform surface outside the sinkhole of the dock platform and located between two adjacent cable frames.

6. The vessel degaussing floating system of claim 1, wherein, The sinking chamber has buffer pads on its two opposite side walls.

7. Ship degaussing floating work system according to claim 6, characterized in that, There are multiple buffer pads, with at least one buffer pad provided between each pair of adjacent cable frames.

8. The vessel degaussing floating system of claim 1, wherein, It also includes a tugboat winch, which is located on the platform surface outside the sinkhole in the dock platform, along the distribution direction of the cable frame, and the tugboat winch is located at the bow and / or stern of the dock platform.

9. The vessel degaussing floating system of claim 1, wherein, It also includes a connecting bridge, which is located at the head and / or tail of the dock platform along the distribution direction of the cable frame; the connecting bridge includes a first bridge section and a second bridge section, one end of the first bridge section is rotatably connected to the first side wall of the sinking chamber, and one end of the second bridge section is rotatably connected to the second side wall of the sinking chamber, with the first side wall and the second side wall facing each other. The connecting bridge can switch between an open state and a closed state under external force. When the connecting bridge is in the open state, the second end of the first bridge segment is away from the second end of the second bridge segment. When the connecting bridge is in the closed state, the first end of the first bridge segment is connected to the second end of the second bridge segment.

10. The vessel degaussing floating system of claim 1, wherein, It also includes an anchoring device, to which the dock platform is connected and secured to the target sea area.

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