Magnetic levitation eliminating type operation system for ship

Abstract

The invention 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] The present invention relates to the technical field of ship degaussing, and in particular to a floating operation system for ship degaussing. Background Art

[0002] Ships are usually made of steel. Due to the existence of the earth's magnetic field, magnetism will accumulate on the hull to form a magnetic field, which is easily damaged by magnetic fuse equipment. In order to improve the magnetic protection ability of ships and ensure navigation safety, newly built or repaired ships, as well as ships that have been used for a certain period of time, need to be degaussed. The technological upgrading and development of ship degaussing equipment has become an inevitable trend. The common principle of ship degaussing technology is to use degaussing cables to form a spiral coil on the outer circle of the ship. Using the electromagnetic field theory, an alternating magnetic field is formed by transmitting an alternating large current through the degaussing cables, disrupting and weakening the inherent magnetism formed by the ship cutting the earth's magnetic field after long-term use, so as to achieve the purpose of degaussing.

[0003] During the ship degaussing operation, generally a special degaussing dock or temporary cable winding is used for degaussing. Because the special degaussing dock has high requirements for infrastructure and large construction costs, and the number of domestic special degaussing docks is small, the phenomenon of ships queuing for degaussing is serious; if temporary cable winding is used, a suitable sea area must be selected first, and a working coil is temporarily wound outside the ship for magnetic treatment. This method requires a large amount of manual labor, the degaussing speed is very slow, and the degaussing cable is easily damaged, making the ship immobile. Even for small-tonnage ships, it takes 2 - 3 days for each ship to be degaussed. And because the ship is tied up by cables during degaussing, it is difficult to maneuver in an emergency and is in a very dangerous situation. This contradiction is not prominent usually, but in the face of an emergency or unexpected event, a serious situation of degaussing a large number of ships in a short period of time will be faced.

[0004] It can be seen that the existing technology has problems such as low ship degaussing efficiency and poor ship maneuverability during the degaussing process. Summary of the Invention

[0005] The present invention provides a floating operation system for ship degaussing, which solves the problems of low ship degaussing efficiency and poor ship maneuverability during the degaussing process in the existing technology.

[0006] The present invention provides a floating operation system for ship degaussing, including a dock-type platform, a cable frame, a magnetic sensor, and a cable coil; during degaussing, the ship to be degaussed is located inside the closed-loop spiral coil;

[0007] There are multiple cable frames, and the multiple cable frames are arranged at intervals along the extension direction of the dock-type platform. The dock-type platform has a sinking chamber, and the cable coil is wound along the cable frame and the inner wall of the sinking chamber to form a closed-loop spiral coil;

[0008] There are multiple magnetic sensors, and the multiple magnetic sensors are arranged at the bottom of the sinking chamber and arrayed along the distribution direction of the cable frame.

[0009] The ship degaussing floating operation system provided by the present invention provides a more portable, mobile and flexible operation environment for the degaussing work of the ship, eliminates on-site manual winding of wires, greatly reduces the degaussing service work, improves the degaussing efficiency, reduces the residence or queuing time of the ship for degaussing, and moreover, the ship degaussing floating operation system provided by the present invention can avoid physical contact between the spiral coil and the ship to be degaussed through a preset closed-loop spiral coil, or it can be understood as avoiding the closed-loop spiral coil from winding around the hull surface of the ship to be degaussed, thereby being able to improve the mobility of the ship, and can withdraw from the degaussing process at any time without disassembling and winding the wires, greatly improving the rapid deployment efficiency and solving the emergency degaussing requirement.

[0010] Optionally, the cable frame is a U-shaped bracket, and both ends of the U-shaped bracket are fixed to the platform surface outside the sinking chamber in the dock-type platform.

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

[0012] The cable coil can be partially wrapped through the first wire groove and the second wire groove to protect the cable coil from damage and improve the service life of the cable coil.

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

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

[0015] Optionally, the ship degaussing floating operation system further includes a mooring post, and the mooring post is installed on the platform surface outside the sinking chamber in the dock-type platform and is located in the middle of two adjacent cable frames.

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

[0017] Optionally, there are multiple buffer pads, and at least one buffer pad is provided between each pair of adjacent cable frames.

[0018] Optionally, the ship degaussing floating operation system further includes a towing winch, and the towing winch is provided on the platform surface outside the sinking chamber in the dock-type platform. Along the distribution direction of the cable frame, the towing winch is located at the head and / or the tail of the dock-type platform.

[0019] Optionally, the ship degaussing floating operation system includes a connecting gangway. Along the distribution direction of the cable framework, the connecting gangway is located at the head and / or the tail of the dock-type platform. The connecting gangway 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. The first side wall and the second side wall are opposite to each other.

[0020] The connecting gangway can be switched between an open state and a combined state under the drive of an external force. When the connecting gangway is in the open state, the second end of the first bridge section faces away from the second end of the second bridge section. When the connecting gangway is in the combined state, the second end of the first bridge section is connected to the second end of the second bridge section.

[0021] Optionally, the ship degaussing floating operation system further includes an anchoring device. The dock-type platform is connected to the anchoring device and fixed to the target sea area through the anchoring device. Description of the Drawings

[0022] Figure 1 It is a schematic plan view of the ship degaussing floating operation system according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic first side view structure of the ship degaussing floating operation system according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic second side view structure of the ship degaussing floating operation system according to an embodiment of the present invention;

[0025] Figure 4a It is a schematic diagram of the docking process when the ship degaussing floating operation system according to an embodiment of the present invention is in use Figure 1 ;

[0026] Figure 4b It is a schematic diagram of the docking process when the ship degaussing floating operation system according to an embodiment of the present invention is in use Figure 2 ;

[0027] Figure 4c It is a schematic diagram of the docking process when the ship degaussing floating operation system according to an embodiment of the present invention is in use Figure 3 ;

[0028] Figure 4d It is the fourth schematic diagram of the docking process when the ship degaussing floating operation system according to an embodiment of the present invention is in use.

[0029] Description of the Reference Numerals:

[0030] 1: Ship degaussing floating operation system;

[0031] 11: Dock - type platform; 110: Sinking chamber; 12: Cable frame; 120: Cable coil; 13: Magnetic sensor; 141: First wire groove; 142: Second wire groove; 15: Bollard; 16: Buffer pad; 17: Tug - boat winch; 18: Connecting footbridge; 181: First bridge section; 182: Second bridge section; 19: Mooring device;

[0032] 2: Ship to be degaussed; 3: Tugboat. Specific embodiments

[0033] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given. However, the protection scope 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 denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0036] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0038] To make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] The present invention provides a ship degaussing floating operation system 1. Please refer to Figures 1 to 3 , including a dock - type platform 11, a cable frame 12, a magnetic sensor 13, and a cable coil 120.

[0040] There are multiple cable frames 12, and the multiple cable frames 12 are arranged at intervals along the extending direction of the dock-type platform 11. As Figure 2 and Figure 3 shown, the dock-type platform 11 has a sunken chamber 110, and the cable coil 120 is wound along the inner walls of the cable frame 12 and the sunken chamber 110 to form a closed-loop spiral coil; during degaussing, the ship 2 to be degaussed is located inside the closed-loop spiral coil.

[0041] As Figure 2 and Figure 3 shown, and referring to Figure 1 for understanding, there are multiple magnetic sensors 13, and the multiple magnetic sensors 13 are arranged at the bottom of the sunken chamber 110 and are arrayed along the distribution direction of the cable frame 12 (i.e., Figure 2 the direction indicated by the arrow in

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

[0043] The ship degaussing floating operation system 1 provided by the present invention provides a more portable, flexible and maneuverable operation environment for the degaussing work of ships, eliminates on-site manual wiring, greatly reduces the degaussing service work, improves the degaussing efficiency, reduces the ship degaussing stay or queuing time, and moreover, the ship degaussing floating operation system provided by the present invention can avoid physical contact between the spiral coil and the ship 2 to be degaussed through the preset closed-loop spiral coil, or can be understood as avoiding the closed-loop spiral coil from winding around the hull surface of the ship 2 to be degaussed. Furthermore, it can improve the maneuverability of the ship, can exit the degaussing process at any time without disassembling the wiring, greatly improves the rapid deployment efficiency, and solves the emergency degaussing demand.

[0044] The above-mentioned various structures, equipment, etc. all adopt non-magnetic or low-magnetic materials, such as aluminum alloy, stainless steel, etc.

[0045] In one embodiment, the cable frame 12 includes multiple bays. Those skilled in the art can understand that a bay is a frame elevation composed of columns and beams in a steel structure. As Figure 3 shown, the cable frame 12 is a U-shaped bracket, and both ends of the U-shaped bracket are fixed to the platform surface of the dock-type platform 11 located outside the sunken chamber 110. In other alternative embodiments, the cable frame 12 can also be of other shapes, such as C-shaped, linear, or broken-line shaped, as long as the cable coil can be wound on it to form a closed-loop spiral coil, it does not deviate from the scope of the embodiments of the present invention.

[0046] Those skilled in the art can understand that the dock-type platform 11 is heaveable, and there is a water storage space inside the dock-type platform. The height of the dock-type platform 11 at the sea level is adjusted by changing the water storage volume.

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

[0048] The cable coil can be wrapped by the first wire groove 141 and the second wire groove 142 to protect the cable coil from damage, thereby improving the service life of the cable coil.

[0049] In one embodiment, 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. Along the distribution direction perpendicular to the cable frame (such as Figure 1 the direction indicated by the arrow in the figure), the multiple magnetic sensors 13 in each magnetic sensor group are distributed on both sides of the corresponding cable frame 12. Or it can be understood that a row of magnetic sensors is distributed on both sides of each cable frame 12. In other alternative embodiments, the multiple magnetic sensors 13 are arranged at equal intervals along the bottom of the sinking chamber 110 to form a sensor array.

[0050] During degaussing, a constant current is passed through the cable coil, and this current will generate a magnetic field. When the current magnetic field is opposite to the direction of the original fixed magnetic field inside the ship's hull, this magnetic field magnetizes the ship from the opposite direction, so that its original inherent magnetism is eliminated. The magnetic sensor 13 is used to detect the current magnetic field data of the ship to be degaussed 2 and send the current magnetic field data to the controller. The controller controls the electromagnetic coil to degauss the ship to be degaussed 2 according to the detected current magnetic field data and the preset target magnetic field data. Specifically, the current magnitude or the energization time of the electromagnetic coil can be controlled. After degaussing is completed, the magnetic sensor 13 can be used again to detect the magnetic field data of the ship to determine whether the degaussing reaches the target value.

[0051] In a further embodiment, as shown in Figure 1 and Figure 2 , the ship degaussing floating operation system 1 further includes a mooring post 15. The mooring post 15 is installed on the platform surface (or can be understood as the dock top) of the dock-type platform outside the sinking chamber and in the middle of two adjacent cable frames 12. The mooring post 15 is used to fix the ship at the target position during degaussing.

[0052] In one embodiment, please refer to Figures 1 to 3 . Buffer pads 16 are provided on two opposite side walls (or understood as dock walls) of the sinking chamber 110. The buffer pads 16 are used to protect the ship from damage caused by collision when it sways under the influence of wind and waves during the degaussing process. 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 embodiment, as Figures 1 to 3 shown, the ship degaussing floating operation system 1 further includes a towing winch 17. The towing winch 17 is provided on the platform surface outside the sinking chamber 110 in the dock-type platform 11, along the distribution direction of the cable frames 12 (such as Figure 1 or Figure 2 the direction indicated by the arrow in), and the towing winch 17 is located at the head and / or tail of the dock-type platform 11.

[0054] In one embodiment, as Figure 1 and Figure 2 shown, the ship degaussing floating operation system 1 further includes a connecting footbridge 18. Along the distribution direction of the cable frames (such as Figure 1 the direction indicated by the arrow in), the connecting footbridge 18 is located at the head and / or tail of the dock-type platform 11. The connecting footbridge 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, and the first side wall and the second side wall are opposite;

[0055] The connecting footbridge 18 can be switched between an open state and a combined state under the drive of an external force. Figure 1 Shown is the combined state. When the connecting footbridge 18 is in the open state, the second end of the first bridge section 181 faces away from the second end of the second bridge section 182. When the connecting footbridge 18 is in the combined state, the second end of the first bridge section 181 is connected to the second end of the second bridge section 182, and as Figure 1 shown, it encloses to form a triangular connecting bridge. In one embodiment, the second ends of both the first bridge section 181 and the second bridge section 182 are hinged to the corresponding side walls of the sinking chamber 110. In other alternative embodiments, it can also be rotatably connected in other ways, as long as the relative movement of the second end of the first bridge section 181 and the second end of the second bridge section 182 can be satisfied, it does not deviate from the scope of the embodiments of the present invention.

[0056] The connecting temporary bridge 18 is used to facilitate the movement of operators on the dock-type platform 11 during ship degaussing, reducing the walking distance during operation. For example, after the dock-type platform 11 sinks, it connects the two sides of the dock top to provide a working passage for personnel, which helps to improve the ship degaussing efficiency. When the degaussing is completed, the connecting temporary bridge can be adjusted to the open state for the ship to sail out of the dock.

[0057] In a further embodiment, please refer to Figures 4a to 4d , the ship degaussing floating operation system 1 further includes an anchoring device 19. The dock-type 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 the process of ship degaussing. Please refer to Figures 4a to 4d , and in combination with Figure 1 and Figure 2 Understand that during the ship degaussing process, the ship degaussing floating operation system 1 is positioned in the target sea area through the anchoring device 19, and the operators can go back and forth through the connecting temporary bridge 18. To reduce the influence of sea conditions, the included angle between the ship degaussing floating operation system 1 and the main wave direction is as small as possible. As Figure 4b shown, the ship 2 to be degaussed sails to the vicinity of the ship degaussing floating operation system 1. Two mooring ropes are led out from the bow and connected to the towing winch 17 of the ship degaussing floating operation system 1, and the docking angle is controlled with the assistance of the tugboat 3. Then, as Figure 4c shown, the ship 2 to be degaussed slowly enters the dock under the towing of the towing winch 17, and the tugboat 3 assists in adjusting the ship's docking angle outside. Then, as Figure 4d shown, after the ship 2 to be degaussed completely enters the dock, the towing winch 17 stops working. Bow ropes, breast ropes and stern ropes are led out from both sides of the ship 2 to be degaussed and fixed to the bollards 15 of the ship degaussing floating operation system 1, and the preparatory work for degaussing operations can be carried out synchronously. After the ship degaussing operation is completed, the ship slowly sails away from the ship degaussing floating operation system 1 with the assistance of the tugboat 3.

[0059] The ship degaussing floating operation system 1 provided by the present invention is easy to be maneuverably deployed with the assistance of a tugboat, especially suitable for degaussing ships in case of emergency, and has significant emergency benefits. Since there is no need to temporarily wind cables around the ship's hull, the labor intensity of degaussing operators can be reduced, the ship degaussing time can be shortened, and the degaussing effect is good. After the floating operation device is built and put into operation, the requirements for surrounding supporting facilities are small, and it can be repeatedly put into use with low maintenance costs, having good economic benefits.

[0060] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. A ship degaussing floating operation system, characterized in that It includes a dock-type platform, a cable frame, a magnetic sensor, and a cable coil; There are multiple cable frames, and the multiple cable frames are arranged at intervals along the extension direction of the dock-type platform. The dock-type platform has a sunken chamber, and the cable coil is wound along the cable frame and the inner wall of the sunken chamber to form a closed-loop spiral coil; during degaussing, the ship to be degaussed is located inside the closed-loop spiral coil; There are multiple magnetic sensors, and the multiple magnetic sensors are arranged at the bottom of the sunken chamber and arrayed along the distribution direction of the cable frame.

2. The ship degaussing floating operation 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 on the platform surface of the dock-type platform outside the sunken chamber.

3. The ship degaussing floating operation system according to claim 1, characterized in that, A first wire groove is provided on the cable frame, and a second wire groove is provided on the inner wall of the sunken chamber. The cable coil is installed in the first wire groove and the second wire groove.

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

5. The ship degaussing floating operation system according to claim 1, characterized in that, It further includes a bollard, and the bollard is installed on the platform surface of the dock-type platform outside the sunken chamber and in the middle of two adjacent cable frames.

6. The ship degaussing floating operation system according to claim 1, wherein Buffer pads are provided on both opposite side walls of the sunken chamber.

7. The ship degaussing floating operation system according to claim 6, characterized in that, There are multiple buffer pads, and at least one buffer pad is provided between each pair of adjacent cable frames.

8. The ship degaussing floating operation system according to claim 1, characterized in that It further includes a towing winch, and the towing winch is provided on the platform surface of the dock-type platform outside the sunken chamber. Along the distribution direction of the cable frame, the towing winch is located at the head and / or tail of the dock-type platform.

9. The ship degaussing floating operation system according to claim 1, characterized in that, It further includes a connecting footbridge. Along the distribution direction of the cable frame, the connecting footbridge is located at the head and / or tail of the dock-type platform; the connecting footbridge 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 sunken chamber, and one end of the second bridge section is rotatably connected to the second side wall of the sunken chamber. The first side wall and the second side wall are opposite; The connecting footbridge can be switched between an open state and a combined state under the drive of an external force. When the connecting footbridge is in the open state, the second end of the first bridge section faces away from the second end of the second bridge section; when the connecting bridge section is in the combined state, the first end of the first bridge section is connected to the second end of the second bridge section.

10. The ship degaussing floating operation system according to claim 1, characterized in that, It further includes an anchoring device, and the dock-type platform is connected to the anchoring device and fixed to the target sea area through the anchoring device.

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