Maritime work pipeline protection system and ship

Abstract

The utility model discloses a maritime work pipeline protection system and a ship, the maritime work pipeline protection system comprises a cleaning device and a storage device, the cleaning device comprises a cleaning bin, and a cleaning module, a drying module and a conveying module which are located in the cleaning bin; the conveying module comprises a first wheel set with the rotating direction parallel to the circumferential direction of the maritime work pipeline and a second wheel set with the rotating direction parallel to the length direction of the maritime work pipeline, and the height of the first wheel set in the height direction of the cleaning bin is adjustable so that the maritime work pipeline can abut against the first wheel set or the second wheel set. The second wheel set is used for driving the maritime work pipelines to be output from the cleaning bin, the cleaning module is used for cleaning the maritime work pipelines abutting against the first wheel set, the drying module is used for drying the maritime work pipelines, the storage device comprises a storage bin and a gas supply module, and the gas supply module is used for introducing corrosion inhibition gas into the storage bin. Therefore, the cleaning reliability of the maritime work pipeline can be improved, the maritime work pipeline is protected, and the risk of corrosion and rusting is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning, in particular to an offshore pipeline protection system and a ship. Background Art

[0002] For offshore operation ships, especially drilling ships and deep-sea riser water intake ships, after the steel drill pipes, water intake pipelines and other offshore pipelines are simply flushed with fresh water after the underwater operation, they are usually stacked on the deck to prevent the corrosion of the offshore pipelines by high-salinity seawater and attached organisms. At present, the commonly used offshore pipelines are mostly cleaned by means of water guns or water brushes, which is difficult to comprehensively clean the inner wall of the offshore pipelines. Moreover, after the offshore pipelines are flushed, they are directly stacked wet on the deck, and the residual moisture in the offshore pipelines and the offshore environment will still cause the offshore pipelines to rust. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an offshore pipeline protection system, which can improve the cleaning reliability of the offshore pipelines, protect the offshore pipelines and reduce the risk of corrosion and rust of the offshore pipelines.

[0004] The utility model also provides a ship with the above-mentioned offshore pipeline protection system.

[0005] According to the offshore pipeline protection system of the first aspect embodiment of the utility model, it includes:

[0006] A cleaning device, the cleaning device includes a cleaning bin and a cleaning module, a drying module and a conveying module located in the cleaning bin. The conveying module includes a first wheel set and a second wheel set. The rotation direction of the first wheel set is parallel to the circumferential direction of the offshore pipeline, and the rotation direction of the second wheel set is parallel to the length direction of the offshore pipeline. The height of the first wheel set in the height direction of the cleaning bin is adjustable, so that the offshore pipeline can lean on the first wheel set or the second wheel set. The second wheel set is used to drive the offshore pipeline to output the cleaning bin. The cleaning module is used to clean the offshore pipeline leaning on the first wheel set, and the drying module is used to dry the offshore pipeline;

[0007] A storage device, the storage device includes a storage bin and a gas supply module. The gas supply module is used to introduce a corrosion inhibitor gas into the storage bin.

[0008] The offshore pipeline protection system according to the embodiments of the present utility model has at least the following beneficial effects: By setting the rotation direction of the first wheel set of the conveying module to be parallel to the circumferential direction of the offshore pipeline, and the rotation direction of the second wheel set to be parallel to the length direction of the offshore pipeline, and the height of the first wheel set in the height direction of the cleaning bin is adjustable, so that the offshore pipeline can be supported on the first wheel set or the second wheel set. Thus, when the offshore pipeline is supported on the first wheel set, the offshore pipeline can be driven by the first wheel set to rotate, so that the cleaning module and the drying module can clean and dry all angles of the offshore pipeline to achieve comprehensive cleaning, reduce the residual moisture on the offshore pipeline, and further improve the cleaning reliability of the offshore pipeline, which is beneficial to protecting the offshore pipeline and reducing the risk of the offshore pipeline being corroded and rusted by the residual moisture. At the same time, by setting the storage device, the offshore pipeline can be stored in the sealed storage bin after passing through the cleaning device to prevent the high-humidity and high-salt seawater from entering the storage bin, and the slow-release gas is introduced into the storage bin through the gas supply module, so that the offshore pipeline stored in the storage bin is in an environment not prone to corrosion and rust, which is beneficial to reducing the risk of the offshore pipeline being corroded and rusted by the marine environment to further protect the offshore pipeline.

[0009] According to some embodiments of the present utility model, a displacement groove is provided on the bottom wall of the cleaning bin. The surface of the bottom wall of the cleaning bin is the first position, and the bottom of the displacement groove is the second position. The first wheel set includes a first pulley unit, a first pulley frame, and a first roller. The first pulley unit is arranged on the top of the first pulley frame, and the first roller is arranged on the bottom of the first pulley frame. The first roller is used to drive the first wheel set to switch between the first position and the second position. When the first wheel set is in the first position, the offshore pipeline is supported on the first wheel set. When the first wheel set is in the second position, the offshore pipeline is supported on the second wheel set.

[0010] According to some embodiments of the present utility model, the surface of the bottom wall of the cleaning bin has a first inclination angle in the length direction of the offshore pipeline, and one end of the cleaning bin close to the cleaning module is higher than the end far from the cleaning module.

[0011] According to some embodiments of the present utility model, a first slide rail is provided on the top of the cleaning bin. The first slide rail extends in the length direction of the offshore pipeline. The drying module includes a blower, a first slider, and a first telescopic frame. The first slider is slidably connected to the first slide rail. One end of the first telescopic frame is connected to the first slider, and the other end of the first telescopic frame is connected to the blower. The first telescopic frame is telescopic in the height direction of the cleaning bin.

[0012] According to some embodiments of the present utility model, the cleaning module includes a first cleaning component and a second cleaning component. The first cleaning component includes a first nozzle, a first bracket, and a driving wheel set. The first bracket is installed in the cleaning bin and located at one end of the offshore pipeline. The first nozzle passes through the driving wheel set and abuts against the first bracket, and the first nozzle is arranged corresponding to the pipe orifice of the offshore pipeline. The driving wheel set is used to drive the first nozzle to move along the length direction of the offshore pipeline, so that the first nozzle displaces inside the offshore pipeline. A second slide rail is provided at the top of the cleaning bin, and the second cleaning component is slidably connected to the second slide rail.

[0013] According to some embodiments of the present utility model, the storage bin is provided with a partition, so that the storage bin is divided into a storage area and a control area. The sealing door is arranged at one end of the storage area far away from the partition. The gas supply module includes a gas tank and a first ventilation pipe. The gas tank is installed in the control area, and the gas tank is filled with corrosion inhibitor gas. The first ventilation pipe is connected to the air outlet of the gas tank and passes through the partition. The offshore pipeline is stored in the storage area.

[0014] According to some embodiments of the present utility model, a movable sealing door is provided at one end of the storage area far away from the partition. The offshore pipeline enters the storage area through the sealing door. The storage device further includes a compressor, a one-way valve, and a pressure relief valve. The compressor is installed in the control area and connected to the first ventilation pipe. The one-way valve is arranged on the first ventilation pipe. The pressure relief valve is arranged on the partition and communicates the storage area with the control area.

[0015] According to some embodiments of the present utility model, the pressure relief valve includes a sleeve, a first elastic member, and a valve switch. The sleeve is installed on the partition and has a hollow part communicating the storage area with the control area. The valve switch includes a movable shaft, a sealing part, and a pressing part. The movable shaft passes through the hollow part. The sealing part is connected to one end of the movable shaft close to the sealing door. The pressing part is connected to one end of the movable shaft far away from the sealing door. The first elastic member is sleeved on the outer periphery of the movable shaft and located between the pressing part and the partition. The pressing part is used to push the movable shaft in the direction of the sealing part under the action of an external force, so that the sealing part is separated from the partition to form an exhaust channel.

[0016] According to some embodiments of the present utility model, the storage device includes a storage module disposed in the storage bin. The storage module includes a fixed frame, a storage rack, and a moving rack. The fixed frame has a multi-layer support frame structure along the height direction of the storage bin. The number of the storage racks is multiple, and the multiple storage racks are sequentially arranged at intervals along the height direction of the storage bin, and each storage rack is slidably connected to the fixed frame. The storage rack is provided with a plurality of installation slots for accommodating the offshore pipelines. The moving rack is spaced from the fixed frame and is movable relative to the fixed frame, and the moving rack is used to support the storage rack when the storage rack moves relative to the fixed frame to the outside of the storage bin.

[0017] A ship according to an embodiment of the second aspect of the present utility model includes the offshore pipeline protection system as described in the first aspect above.

[0018] The ship according to the embodiment of the present utility model has at least the following beneficial effects: It can improve the cleaning reliability of the offshore pipeline to protect the offshore pipeline and reduce the risk of the offshore pipeline being corroded and rusted.

[0019] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0021] Figure 1 is a top view of the cleaning device of the offshore pipeline protection system disclosed in the embodiment of the present utility model;

[0022] Figure 2 is a side view of the cleaning device in the first position disclosed in the embodiment of the present utility model;

[0023] Figure 3 is a side view of the cleaning device in the second position disclosed in the embodiment of the present utility model;

[0024] Figure 4 is a front view of the cleaning device disclosed in the embodiment of the present utility model;

[0025] Figure 5 is Figure 4 an enlarged view of the part C in;

[0026] Figure 6 is Figure 4 a schematic cross-sectional view taken along the line A-A in;

[0027] Figure 7 is Figure 4 a schematic cross-sectional view taken along the line B-B in;

[0028] Figure 8 is the front view of the storage device of the offshore pipeline protection system disclosed in the embodiment of the present utility model;

[0029] Figure 9 is Figure 8 the enlarged view at position D in

[0030] Figure 10 is the side view of the storage device disclosed in the embodiment of the present utility model;

[0031] Figure 11 is the structural schematic diagram of the air release valve of the offshore pipeline protection system disclosed in the embodiment of the present utility model;

[0032] Figure 12 is the structural schematic diagram of the first installation pipe of the air release valve;

[0033] Figure 13 is the structural schematic diagram of the second installation pipe of the air release valve.

[0034] Reference numerals:

[0035] 10. Cleaning device; 11. Cleaning bin; 110. Shifting groove; 12. Cleaning module; 121. First cleaning component; 1211. First spray head; 1212. First bracket; 1213. Driving wheel set; 122. Second cleaning component; 1221. Second spray head; 1222. Second slider; 1223. Second bracket; 123. Water tank; 124. Supercharger; 125. Water supply pipeline; 126. First hub; 127. Second hub;

[0036] 13. Drying module; 131. Fan; 132. First slider; 133. First telescopic frame;

[0037] 14. Conveying module; 141. First wheel set; 1411. First pulley unit; 1412. First pulley bracket; 1413. First roller; 1414. First driving member; 142. Second wheel set; 1421. Second pulley bracket; 1422. Second pulley unit; 15. Control module; 151. Controller; 152. Traction wire; 153. Rotating wheel;

[0038] 20. Storage device; 21. Storage bin; 211. Sealed door; 212. Partition board; 2101. Storage area; 2102. Control area; 22. Gas supply module; 221. Gas cylinder; 222. First ventilation pipe;

[0039] 23. Storage module; 231. Fixed frame; 232. Storage rack; 2320. Installation groove; 233. Moving frame; 2331. Roller;

[0040] 24. Compressor; 25. One-way valve; 26. Relief valve; 261. Sleeve; 2610. Hollow part; 2611. First installation pipe; 2612. Second installation pipe; 262. First elastic member; 263. Valve switch; 2631. Moving shaft; 2632. Sealing part; 26321. Sealing cover; 26322. Sealing ring; 2633. Pressing part; 27. Electronic switch; 28. Vacuum pump; 29. Manometer; 30. Offshore pipeline. Detailed implementation manners

[0041] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0043] In the description of the present utility model, the meaning of several is more than one, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0044] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0045] In the description of the present utility model, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] After the offshore engineering ship completes the underwater operation, the offshore engineering pipelines are usually stacked on the deck after being simply rinsed with fresh water to prevent the corrosion of the offshore engineering pipelines by high-salinity seawater and attached organisms. At present, the commonly used offshore engineering pipelines are mostly cleaned by means of water guns or water brushes, which are difficult to comprehensively clean the inner wall of the offshore engineering pipelines. Moreover, after the offshore engineering pipelines are rinsed and directly stacked wet on the deck, the residual moisture in the offshore engineering pipelines and the marine environment will still cause the offshore engineering pipelines to rust.

[0047] In the related art, in order to prevent the corrosion of offshore engineering pipelines, anti-corrosion coatings are mostly sprayed on the inner and outer surfaces of the offshore engineering pipelines. However, at the joints of the offshore engineering pipelines, the anti-corrosion coatings are easily peeled off due to hard contact friction, exposing the steel pipe body to seawater, fresh water or air environment, resulting in the corrosion of the offshore engineering pipelines. In addition, the repair of the anti-corrosion coating usually needs to be carried out after the ship operation is completed and the ship returns to the port, and it is impossible to repair the anti-corrosion of the exposed offshore engineering pipelines in time. In addition, for the seawater intake offshore engineering pipelines with high cleanliness requirements, the connection of the offshore engineering pipelines mostly adopts a non-threaded connection method, without introducing lubricating oil and without spraying coatings inside the offshore engineering pipelines, and its anti-corrosion measures are more difficult. From the test results, if the offshore engineering pipelines are directly stacked on the deck without taking protective measures, the inner wall of the offshore engineering pipelines will inevitably rust, resulting in the pollution of the seawater extracted by the offshore engineering pipelines and forming rust deposits in the water storage tank.

[0048] Based on this, the present application provides an offshore engineering pipeline protection system and a ship. The first round group of the transmission module drives the offshore engineering pipeline to rotate, so that the cleaning module can clean all angles of the offshore engineering pipeline, and the drying module dries the offshore engineering pipeline to reduce liquid residues. The gas supply module and the storage bin provide a storage environment that is not easy to rust for the cleaned offshore engineering pipeline, so as to solve the problems of incomplete cleaning and easy rusting of the offshore engineering pipeline.

[0049] The technical solutions of the present application will be further described below in conjunction with the embodiments and the drawings.

[0050] A ship provided by an embodiment of the present application includes an offshore engineering pipeline protection system. Specifically, the offshore engineering pipeline protection system includes a cleaning device 10 (see Figure 1 ) and a storage device 20 (see Figure 8 ). Please refer to Figures 1 to 5, the cleaning device 10 includes a cleaning chamber 11 and a cleaning module 12, a drying module 13, and a conveying module 14 located within the cleaning chamber 11. The conveying module 14 includes a first wheel set 141 and a second wheel set 142. The rotation direction of the first wheel set 141 is parallel to the circumferential direction of the offshore pipeline 30, and the rotation direction of the second wheel set 142 is parallel to the length direction of the offshore pipeline 30. The height of the first wheel set 141 in the height direction of the cleaning chamber 11 is adjustable so that the offshore pipeline 30 can rest on the first wheel set 141 or the second wheel set 142. The second wheel set 142 is used to drive the offshore pipeline 30 out of the cleaning chamber 11. The cleaning module 12 is used to clean the offshore pipeline 30 resting on the first wheel set 141, and the drying module 13 is used to dry the offshore pipeline 30. Please refer to Figure 8 and Figure 9 , the storage device 20 includes a storage chamber 21 and a gas supply module 22. The gas supply module 22 is used to introduce a corrosion inhibitor gas into the storage chamber 21.

[0051] In this way, by setting the rotation direction of the first wheel set 141 of the conveying module 14 to be parallel to the circumferential direction of the offshore pipeline 30 and the rotation direction of the second wheel set 142 to be parallel to the length direction of the offshore pipeline 30, and the height of the first wheel set 141 in the height direction of the cleaning chamber 11 being adjustable so that the offshore pipeline 30 can rest on the first wheel set 141 or the second wheel set 142. Thus, when the offshore pipeline 30 rests on the first wheel set 141, the offshore pipeline 30 can be driven by the first wheel set 141 to rotate, enabling the cleaning module 12 and the drying module 13 to clean and dry all angles of the offshore pipeline 30 to achieve comprehensive cleaning, reduce the residual moisture on the offshore pipeline 30, and further improve the cleaning reliability of the offshore pipeline 30, which is beneficial to protecting the offshore pipeline 30 and reducing the risk of the offshore pipeline 30 being corroded and rusted by the residual moisture. At the same time, by setting the storage device 20, the offshore pipeline 30 can be stored in the sealed storage chamber 21 after passing through the cleaning device 10 to prevent the high-humidity and high-salt seawater from entering the storage chamber 21, and the gas supply module 22 introduces a slow-release gas into the storage chamber 21 so that the offshore pipeline 30 stored in the storage chamber 21 is in an environment not prone to corrosion and rust, which is beneficial to reducing the risk of the offshore pipeline 30 being corroded and rusted by the marine environment to further protect the offshore pipeline 30.

[0052] Optionally, the offshore pipeline protection system can be installed on the deck of the ship or in the cabin of the ship, which can be specifically set according to actual needs and is not limited here.

[0053] Please refer to Figures 1 to 3, in some embodiments, a displacement groove 110 is provided on the bottom wall of the cleaning bin 11. The surface of the bottom wall of the cleaning bin 11 is the first position, and the bottom of the displacement groove 110 is the second position. The first wheel set 141 includes a first pulley unit 1411, a first pulley bracket 1412, and a first roller 1413. The first pulley unit 1411 is arranged on the top of the first pulley bracket 1412, and the first roller 1413 is arranged on the bottom of the first pulley bracket 1412. The first roller 1413 is used to drive the first wheel set 141 to switch between the first position and the second position. When the first wheel set 141 is in the first position, the offshore pipeline 30 abuts against the first wheel set 141. When the first wheel set 141 is in the second position, the offshore pipeline 30 abuts against the second wheel set 142.

[0054] In this way, by setting two positions with different heights, when the first wheel set 141 switches between the two positions, the offshore pipeline 30 can abut against different wheel sets, which is beneficial to controlling the movement direction of the offshore pipeline 30 and meeting the operation requirements in different scenarios. When the first wheel set 141 is in the first position, the height of the first wheel set 141 is greater than that of the second wheel set 142. The offshore pipeline 30 abuts against the first wheel set 141, and the offshore pipeline 30 can be driven by the first wheel set 141 to rotate along its own circumferential direction, so that the cleaning module 12 and the drying module 13 can clean and dry all angles of the offshore pipeline 30 to achieve comprehensive cleaning, reduce the residual moisture on the offshore pipeline 30, and further improve the cleaning reliability of the offshore pipeline 30, which is beneficial to protecting the offshore pipeline 30 and reducing the risk of corrosion and rust of the offshore pipeline 30 caused by residual moisture. When the first wheel set 141 is in the second position, the height of the first wheel set 141 is less than that of the second wheel set 142. The offshore pipeline 30 abuts against the second wheel set 142, and the offshore pipeline 30 can be driven by the second wheel set 142 to move along its own length direction, so that the offshore pipeline 30 can enter or exit the cleaning bin 11.

[0055] In addition, by setting the first wheel set 141, it is also beneficial for the offshore pipeline 30 to enter and exit the cleaning bin 11. By pulling the first wheel set 141 out of the cleaning bin 11, hoisting the offshore pipeline 30 onto the first wheel set 141 outside the cleaning bin 11, and then moving the first wheel set 141 into the cleaning bin 11, the offshore pipeline 30 can enter the cleaning bin 11.

[0056] It can be understood that in some other embodiments, the first pulley bracket 1412 can also be a telescopic frame body to adjust the height of the first pulley bracket 1412, which is beneficial to switching the abutting object of the offshore pipeline 30. At the same time, it is also beneficial to increase the space of the cleaning bin 11 to meet the cleaning operation requirements of larger-sized offshore pipelines 30.

[0057] Optionally, the first roller set 141 further includes a first driving member 1414. The first driving member 1414 is disposed on the first pulley frame 1412 and connected to the first roller 1413. The first driving member 1414 is used to drive the first roller 1413 to rotate, so that the first roller 1413 drives the first roller set 141 to switch between a first position and a second position.

[0058] Optionally, the first pulley unit 1411 includes a plurality of first pulleys. The plurality of first pulleys are arranged in sequence along the direction from the first position to the second position. When the offshore pipeline 30 bears against the first roller set 141, it is located between two adjacent first pulleys.

[0059] It can be understood that in some other embodiments, the first pulley frame 1412 can also be a telescopic frame, and the height of the first pulley frame 1412 is adjusted so that the offshore pipeline 30 bears against different roller sets.

[0060] Optionally, the number of the first pulley units 1411 can be multiple. The multiple first pulley units 1411 are arranged at intervals along the length direction of the offshore pipeline 30 and connected to the first pulley frame 1412, so that the multiple first pulley units 1411 are connected into an integral structure through the first pulley frame 1412, which is beneficial to the movement of the first roller set 141.

[0061] Optionally, the second roller set 142 includes a second pulley frame 1421 and a plurality of second pulley units 1422. The plurality of second pulley units 1422 are arranged at intervals along the length direction of the offshore pipeline 30 and connected to the second pulley frame 1421. The plurality of first pulley units 1411 and the plurality of second pulley units 1422 are arranged at intervals in sequence along the length direction of the offshore pipeline 30. A second pulley unit 1422 is provided between every two adjacent first pulley units 1411, which can improve the stability of the offshore pipeline 30 in the cleaning device 10, so that the offshore pipeline 30 can maintain stable and reliable when bearing against different roller sets.

[0062] Optionally, the second pulley frame 1421 can also be a telescopic frame body to adjust the height of the second pulley frame 1421, which is beneficial to both switching the bearing object of the offshore pipeline 30 and increasing the space of the cleaning bin 11 to meet the cleaning operation of larger-size offshore pipelines 30.

[0063] Please refer to Figure 4 and Figure 5 In some embodiments, the bottom wall surface of the cleaning bin 11 has a first inclination angle along the length direction of the offshore pipeline 30, and the end of the cleaning bin 11 close to the cleaning module 12 is higher than the end far from the cleaning module 12.

[0064] In this way, by setting the first inclination angle to make the bottom of the cleaning bin 11 inclined, it is beneficial to drain the liquid in the cleaning bin 11. At the same time, the offshore pipeline 30 located in the cleaning bin 11 also has an inclined angle, so that the liquid used for cleaning the offshore pipeline 30 can be drained from the offshore pipeline 30, thereby reducing the liquid residue on the offshore pipeline 30 and reducing the risk of corrosion and rust of the offshore pipeline 30 by the residual moisture.

[0065] Optionally, the first inclination angle can be 1° to 5°, for example, it can be 1°, 2°, 3° or 4°, etc., so that it is beneficial to drain the liquid from the cleaning bin 11 and the offshore pipeline 30, and at the same time, it can avoid the situation that the offshore pipeline 30 slides due to too large an inclination angle.

[0066] Optionally, the inner wall of the cleaning bin 11 is coated with an anti-corrosion coating to protect the inner wall of the cleaning bin 11 from being eroded by seawater or moisture, and improve the reliability of the cleaning bin 11.

[0067] Optionally, the material of the anti-corrosion coating can be any one of Teflon, graphene, polytetrafluoroethylene, etc., which can be specifically set according to actual needs and are not limited here.

[0068] Please refer to Figure 5 and Figure 6 , in some embodiments, a first slide rail is provided at the top of the cleaning bin 11, and the first slide rail extends along the length direction of the offshore pipeline 30. The drying module 13 includes a fan 131, a first slider 132 and a first telescopic frame 133. The first slider 132 is slidably connected to the first slide rail. One end of the first telescopic frame 133 is connected to the first slider 132, and the other end of the first telescopic frame 133 is connected to the fan 131, and the first telescopic frame 133 is telescopic along the height direction of the cleaning bin 11.

[0069] In this way, by setting the first telescopic frame 133 to adjust the height of the fan 131 in the height direction of the cleaning bin 11, the working area of the fan 131 can be adjusted, so that the fan 131 can blow dry the inside of the offshore pipeline 30 or blow dry the outside of the offshore pipeline 30, which is beneficial to blow dry the residual moisture on the offshore pipeline 30 in all directions to reduce the moisture residue. At the same time, by setting the first slide hole to drive the fan 131 to slide along the first slide rail, the fan 131 can be driven to displace along the length direction of the offshore pipeline 30, and the corresponding position of the fan 131 outside the offshore pipeline 30 can be adjusted, which is beneficial to the fan 131 to blow dry the outside of the offshore pipeline 30 in all directions to reduce the moisture residue, and further protect the offshore pipeline 30 and further reduce the risk of corrosion of the offshore pipeline 30 by the residual moisture.

[0070] Optionally, the drying module 13 further includes a heater for heating the air flow output by the blower 131 so that the air flow output by the blower 131 is hot air, which is beneficial to accelerating the drying of moisture, improving the drying efficiency, and reducing moisture residue.

[0071] Please combine Figure 5 and Figure 7 , in some embodiments, the cleaning module 12 includes a first cleaning component 121 and a second cleaning component 122. The first cleaning component 121 includes a first nozzle 1211, a first bracket 1212, and a driving wheel set 1213. The first bracket 1212 is installed in the cleaning bin 11 and located at one end of the offshore pipeline 30. The first nozzle 1211 passes through the driving wheel set 1213 and abuts against the first bracket 1212, and the first nozzle 1211 is arranged corresponding to the pipe orifice of the offshore pipeline 30. The driving wheel set 1213 is used to drive the first nozzle 1211 to move along the length direction of the offshore pipeline 30 so that the first nozzle 1211 displaces inside the offshore pipeline 30. A second slide rail is provided at the top of the cleaning bin 11, and the second cleaning component 122 is slidably connected to the second slide rail.

[0072] In this way, by providing two cleaning components to clean the inside and outside of the offshore pipeline 30 respectively, it is beneficial to improve the cleaning efficiency and comprehensively clean the offshore pipeline 30, thereby improving the cleaning reliability of the offshore pipeline 30.

[0073] Optionally, the first bracket 1212 is provided with a guiding groove, and the bottom wall of the guiding groove has a first inclination angle. The first nozzle 1211 abuts inside the guiding groove, so that the first nozzle 1211 has a first inclination angle when placed on the first bracket 1212, that is, the first nozzle 1211 maintains the same inclination angle as the offshore pipeline 30, which is beneficial to the movement of the first nozzle 1211 inside the offshore pipeline 30 and enables the first nozzle 1211 to maintain the same cleaning angle relative to the offshore pipeline 30, which is beneficial to ensuring the cleaning efficiency.

[0074] Optionally, the ejection direction of the first nozzle 1211 forms a first included angle with the length direction of the offshore pipeline 30, so that the first nozzle 1211 maintains a fixed angle relative to the inner wall of the offshore pipeline 30. The offshore pipeline 30 is driven to rotate by the first wheel set 141, which is beneficial to ensuring the cleaning reliability.

[0075] Optionally, the first included angle can be 30° to 60°, for example, it can be 30°, 40°, 45°, 50° or 55°, etc. Specifically, it can be set according to actual requirements and is not limited here.

[0076] In some embodiments, the first nozzle 1211 includes a nozzle body, a housing, and multiple groups of holding pulleys. The nozzle body is fixed inside the housing, and multiple groups of holding pulleys are evenly distributed on the outer periphery of the housing to support the movement of the nozzle body inside the offshore pipeline 30.

[0077] Optionally, the number of holding pulleys can be 2 groups, 3 groups, 4 groups or several groups. Taking the number of holding pulleys being 3 groups as an example, the 3 groups of holding pulleys are evenly distributed on the outer periphery of the housing, and the adjacent two holding pulleys are spaced 120° apart, which can facilitate the movement of the nozzle body in the offshore pipeline 30 and improve the stability of the nozzle body in the offshore pipeline 30.

[0078] Optionally, the nozzle body is provided with a plurality of outlet ports, and the plurality of outlet ports are evenly distributed along the circumferential direction of the nozzle body, and the outlet angles of the plurality of outlet ports are the same, so that when the nozzle body emits, each outlet port impacts the inner wall of the offshore pipeline 30, which is beneficial to making the reaction forces received by each position in the circumferential direction of the nozzle body approximately the same, and further making the nozzle body maintain a fixed angle in the offshore pipeline 30 to ensure the cleaning effect on the inner wall of the offshore pipeline 30.

[0079] Optionally, the first cleaning component 121 further includes a camera and a lighting lamp. The camera and the lighting lamp are arranged at one end of the first nozzle 1211 away from the offshore pipeline 30. The interior of the offshore pipeline 30 is illuminated by the lighting lamp, and the inner wall of the offshore pipeline 30 is photographed by the camera to identify the cleaning effect of the first cleaning component 121 on the inner wall of the offshore pipeline 30, and at the same time, the inner wall of the offshore pipeline 30 is inspected to timely identify the rust points of the offshore pipeline 30.

[0080] Please refer to again Figure 1 and Figure 5 , in some embodiments, the offshore pipeline protection system further includes a control module 15. The cleaning module 12 further includes a water tank 123 and a supercharger 124. The supercharger 124, the drive wheel set 1213 of the first cleaning component 121, the camera and the lighting lamp are respectively electrically connected to the control module 15. The supercharger 124 is arranged in the water tank 123. The first nozzle 1211 is connected to the outlet of the water tank 123 through a water supply pipeline 125. The drive wheel set 1213 is controlled by the control module 15 to start, so as to send the first nozzle 1211 into the interior of the offshore pipeline 30, and a high-pressure jet is output to the first nozzle 1211 through the supercharger 124 to wash the inner wall of the pipeline. By setting the preset water pressure value of the supercharger 124, the jet pressure of the nozzle on the interior of the pipeline can be controlled.

[0081] Optionally, the cleaning module 12 further includes a first hub 126, and the water supply pipeline 125 of the first cleaning component 121 is installed on the first hub 126, which can make the internal structure of the cleaning module 12 more tidy and avoid the situation of wire entanglement or interference with other structures.

[0082] In some embodiments, a second slide rail is provided at the top of the cleaning bin 11. The second slide rail is arranged at an interval from the first slide rail and extends along the length direction of the offshore pipeline 30. The control module 15 includes a controller 151, a traction wire 152, and a plurality of rotating wheels 153. The second cleaning component 122 includes a second spray head 1221, a second slider 1222, and a second bracket 1223. The second slider 1222 is slidably connected to the second slide rail. The second slider 1222 and the second spray head 1221 are respectively connected to the second bracket 1223. The second spray head 1221 is connected to the outlet of the water tank 123 through a pipeline. The traction wire 152 is wound around the outer periphery of the rotating wheel 153 and connected to the second slider 1222. The controller 151 is communicatively connected to at least one of the rotating wheels 153. In this way, by driving the rotating wheel 153 to rotate through the controller 151, the traction wire 152 is driven to move. The traction wire 152 drives the second slider 1222 to slide along the second slide rail. When the second slider 1222 moves, it drives the second bracket 1223 and the second spray head 1221 located on the second bracket 1223 to move, so as to realize the movement of the second spray head 1221 along the length direction of the offshore pipeline 30, enabling the second spray head 1221 to comprehensively clean the outer periphery of the offshore pipeline 30.

[0083] Optionally, the second bracket 1223 may be a triangular structure. The number of the second sliders 1222 is two. The two second sliders 1222 are respectively connected to two corners of the second bracket 1223 along the length direction of the offshore pipeline 30. The second spray head 1221 is installed on the side of the second bracket 1223 away from the second slide rail. Thereby, the structural reliability of the second spray head 1221 on the second bracket 1223 can be improved.

[0084] Optionally, the number of the traction wires 152 may be at least two. One of the at least two traction wires 152 is connected to the second slider 1222, and the other of the at least two traction wires 152 is connected to the first slider 132, so that the second spray head 1221 and the fan 131 are controlled by different sliders, slide rails, and traction wires 152, thereby improving the reliability of the cleaning device 10 and avoiding the situation of structural interference when the drying module 13 and the cleaning module 12 are working.

[0085] Optionally, the cleaning module 12 further includes a second hub 127 and a third hub. The traction wire 152 connected to the second slider 1222 is installed on the second hub 127, and the traction wire 152 connected to the first slider 132 is installed on the third hub, thereby making the structure of the cleaning device 10 neater and avoiding the situation of wire entanglement or interference with other structures.

[0086] Please combine Figures 8 to 10, in some embodiments, the storage bin 21 is provided with a movable sealing door 211. The offshore pipeline 30 enters the storage bin 21 through the sealing door 211. The sealing door 211 of the storage bin 21 is arranged corresponding to the outlet of the cleaning bin 11, which is beneficial to directly storing the offshore pipeline 30 in the storage bin 21 after the cleaning and drying of the offshore pipeline 30 from the cleaning bin 11, thereby shortening the moving path of the offshore pipeline 30 and improving work efficiency.

[0087] In some embodiments, the storage device 20 includes a storage module 23 arranged in the storage bin 21. The storage module 23 includes a fixed frame 231, a storage rack 232 and a moving rack 233. The fixed frame 231 has a multi-layer support frame structure along the height direction of the storage bin 21. The number of the storage racks 232 is multiple, and the multiple storage racks 232 are arranged at intervals in sequence along the height direction of the storage bin 21. Each storage rack 232 is slidably connected to the fixed frame 231. The storage rack 232 is provided with a plurality of installation slots 2320 for accommodating the offshore pipeline 30. The moving rack 233 is arranged at an interval with the fixed frame 231 and is movable relative to the fixed frame 231. The moving rack 233 is used to support the storage rack 232 when the storage rack 232 moves out of the storage bin 21 relative to the fixed frame 231.

[0088] In this way, by setting the storage rack 232 and the fixed frame 231, the space in the storage bin 21 can be reasonably utilized to ensure the capacity of the storage bin 21 while neatly stacking the offshore pipelines 30 in the storage bin 21 for easy storage and extraction of the offshore pipelines 30. At the same time, by setting the moving rack 233 to support the storage rack 232 when the storage rack 232 is pulled out, it is beneficial to improve the structural reliability of the storage module 23 and enable the offshore pipelines 30 to be stably stored in the installation slots 2320.

[0089] Optionally, the moving rack 233 is arranged on one side of the fixed frame 231 close to the sealing door 211. The number of the moving racks 233 is multiple, and the heights of the multiple moving racks 233 are different. The heights of the multiple moving racks 233 correspond to the heights of the multiple storage racks 232 one by one, so that each layer of the storage rack 232 can be supported by the moving rack 233 when it is pulled out, and the requirements for pulling out different sizes of multiple layers of storage racks 232 at the same time can be met, so as to improve the movement flexibility of different layers of the storage racks 232 and facilitate the hoisting of the offshore pipelines 30 on different layers.

[0090] Optionally, the widths of the multiple moving racks 233 (i.e., the dimensions of the moving racks 233 along the direction perpendicular to the length direction of the offshore pipeline 30 and the height direction of the storage bin 21) are different, and the widths of the multiple moving racks 233 gradually increase in the direction from the bottom to the top of the storage bin 21. The multiple moving racks 233 are stacked along the height direction of the storage bin and are linearly distributed along the width direction of the moving racks 233.

[0091] This enables each layer of storage racks 232 and mobile racks 233 to move independently, avoiding interference between the storage rack 232 and the mobile racks 233 of other corresponding layers when the storage rack 232 is pulled out.

[0092] Understandably, in some other embodiments, the number of mobile racks 233 can also be one. The mobile rack 233 is provided with multiple layers of support rods, so that the multiple layers of support rods correspond to the multiple layers of storage racks 232 one by one.

[0093] Optionally, the bottom of the mobile rack 233 is provided with second rollers 2331 and a locking mechanism. The mobile rack 233 is driven to displace by the second rollers 2331, and the rotation of the second rollers 2331 is restricted by the locking mechanism, so that the mobile rack 233 is fixed at the current position, avoiding the situation that the mobile rack 233 slides during the hoisting of the offshore pipeline 30.

[0094] Optionally, the storage bin 21 is provided with a partition 212, so that the storage bin 21 is divided into a storage area 2101 and a control area 2102. The storage module 23 is located in the storage area 2101, and the sealing door 211 is arranged at one end of the storage area 2101 away from the partition 212. The gas supply module 22 includes a gas tank 221 and a first ventilation pipe 222. The gas tank 221 is installed in the control area 2102, and the gas tank 221 is filled with corrosion-inhibiting gas. The first ventilation pipe 222 is connected to the air outlet of the gas tank 221 and penetrates through the partition 212. The offshore pipeline 30 is stored in the storage area 2101.

[0095] In this way, by dividing the storage bin 21 into two areas, it is beneficial to the integration of the storage device 20, and is beneficial to reducing the influence of the marine environment on the storage bin 21, so as to ensure that the offshore pipeline 30 stored in the storage bin 21 is in a storage environment where it is not easily rusted.

[0096] Please refer to Figure 9 and Figure 11 , in some embodiments, the storage device 20 further includes a compressor 24, a one-way valve 25 and a pressure relief valve 26. The compressor 24 is installed in the control area 2102 and connected to the first ventilation pipe 222. The one-way valve 25 is arranged on the first ventilation pipe 222, and the pressure relief valve 26 is arranged on the partition 212 and communicates the storage area 2101 with the control area 2102.

[0097] In this way, the compressor 24 drives the gas in the gas tank 221 to enter the storage area 2101 to accelerate the filling speed of the corrosion-inhibiting gas in the storage area 2101. At the same time, the one-way valve 25 controls the opening and closing of the first ventilation pipe 222 to ensure the stable air pressure in the storage area 2101 and prevent the gas in the storage area 2101 from flowing to the control area 2102 through the first ventilation pipe 222.

[0098] Optionally, the main component of the corrosion-inhibiting gas filled in the gas cylinder 221 can be nitrogen, which can not only slow down the corrosion rate of the offshore pipeline 30 during storage in the storage bin 21, but also reduce costs. Since nitrogen has a high inertness and is not easy to burn, it will not pollute the environment when released and will not cause harm to operators, so it has high safety.

[0099] Understandably, in some other embodiments, the main component of the corrosion-inhibiting gas filled in the gas cylinder 221 can also be helium, argon, etc., which can be specifically set according to actual needs and are not limited here.

[0100] Please refer to Figures 11 to 13 , in some embodiments, the air release valve 26 includes a sleeve 261, a first elastic member 262 and a valve switch 263. The sleeve 261 is installed on the partition 212 and has a hollow portion 2610 communicating the storage area 2101 and the control area 2102. The valve switch 263 includes a movable shaft 2631, a sealing portion 2632 and a pressing portion 2633. The movable shaft 2631 passes through the hollow portion 2610. The sealing portion 2632 is connected to one end of the movable shaft 2631 close to the sealing door 211, and the pressing portion 2633 is connected to the other end of the movable shaft 2631 away from the sealing door 211. The first elastic member 262 is sleeved on the outer periphery of the movable shaft 2631 and is located between the pressing portion 2633 and the partition 212. The pressing portion 2633 is used to push the movable shaft 2631 in the direction of the sealing portion 2632 under the action of an external force, so that the sealing portion 2632 is separated from the partition 212 to form an exhaust passage.

[0101] In this way, when the air release valve 26 is in the closed state, the air release valve 26 abuts against the partition 212 through the sealing portion 2632 to close the hollow portion 2610, so that the storage area 2101 maintains a certain air pressure, thereby ensuring the gas stability of the storage area 2101 to protect the offshore pipeline 30 stored in the storage area 2101. When the air release valve 26 is in the open state, the movable shaft 2631 moves in the direction of the sealing portion 2632 driven by the pressing portion 2633, so that the sealing portion 2632 is separated from the partition 212 to form an exhaust passage. At the same time, the first elastic member 262 is compressed and deformed driven by the pressing portion 2633 to generate a deformation restoring force pointing to the pressing portion 2633. When the driving force of the pressing portion 2633 disappears, the first elastic member 262 will drive the pressing portion 2633 to reset, so as to drive the movable shaft 2631 to move until the sealing portion 2632 abuts against the partition 212, thereby closing the exhaust passage.

[0102] Optionally, the storage device 20 further includes an electronic switch 27, and the electronic switch 27 is used to push the valve switch 263 in the direction of the sealing portion 2632, so as to realize the electric control of the air release valve 26 and improve the automation degree of the offshore pipeline protection system.

[0103] Understandably, in some other embodiments, the air release valve 26 can also be switched between the open and closed states by manually pressing the pressing portion 2633.

[0104] Optionally, the sleeve 261 includes a first mounting tube 2611 and a second mounting tube 2612. The first mounting tube 2611 and the second mounting tube 2612 are respectively fixedly connected to both sides of the partition plate 212, and the first mounting tube 2611 and the second mounting tube 2612 are detachably connected. The first mounting tube 2611 is located on the side close to the sealing portion 2632 of the partition plate 212, so as to facilitate the installation and disassembly of the sleeve 261.

[0105] Optionally, the connection mode between the first mounting tube 2611 and the second mounting tube 2612 is a threaded connection, which is beneficial to the assembly and disassembly of the sleeve 261 and reduces the connection gap between the first mounting tube 2611 and the second mounting tube 2612, so as to improve the sealing performance of the storage area 2101.

[0106] Understandably, in some other embodiments, the connection mode between the first mounting tube 2611 and the second mounting tube 2612 can also be interference insertion or bonding, etc., which can be specifically set according to actual needs and is not limited here.

[0107] Optionally, the sealing portion 2632 includes a sealing cover 26321 and a sealing ring 26322. The sealing ring 26322 is located between the sealing cover 26321 and the partition plate 212, and the inner diameter of the sealing ring 26322 is greater than or equal to the outer diameter of the first mounting tube 2611. When the air release valve 26 is switched to the closed state, the sealing ring 26322 is arranged around the outer periphery of the first mounting tube 2611 to seal the hollow portion 2610 of the sleeve 261, so that the storage area 2101 remains sealed.

[0108] Optionally, the sealing ring 26322 has elasticity to buffer the impact force when the air release valve 26 is switched from the open state to the closed state and reduce the damage to the sealing ring 26322.

[0109] In some embodiments, the storage device 20 further includes a vacuum pump 28 and a pressure gauge 29. The vacuum pump 28 passes through the partition plate 212 through an air extraction pipeline and communicates with the storage area 2101 and the control area 2102. An air extraction valve is provided on the air extraction pipeline. The pressure gauge 29 is electrically connected to the vacuum pump 28 and the air extraction valve respectively. The vacuum pump 28 is used to extract the gas in the storage area 2101 when the pressure gauge 29 detects that the pressure in the storage area 2101 is higher than the preset pressure. Thus, it can ensure that the air pressure in the storage area 2101 is maintained within a certain range to improve the reliability of the storage bin 21.

[0110] For the convenience of reading and understanding, the following is a simple example of the working process of the storage device 20:

[0111] In one example, after cleaning, the offshore pipeline 30 is lifted and placed on the storage rack 232, and the sealing door 211 is closed. Subsequently, the air release valve 26 is opened, and at the same time, the compressor 24 is started, and the one-way valve 25 is opened to introduce the slow-release gas in the gas tank 221 into the storage area 2101 through the first ventilation pipe 222. When the storage area 2101 is filled with the slow-release gas, the air release valve 26 is closed and nitrogen is continuously introduced until the pressure in the storage area 2101 is greater than or equal to the first preset pressure, then the one-way valve is closed to complete the storage operation. At this time, the pressure in the storage area 2101 is greater than the atmospheric pressure, so that the offshore pipeline 30 can maintain a good storage environment in the storage area 2101, which is beneficial to reducing the risk of corrosion of the offshore pipeline 30. The pressure in the storage area 2101 is monitored by the pressure gauge 29. When the pressure in the storage area 2101 is less than or equal to the second preset pressure, the nitrogen filling operation is restarted until the pressure in the storage area 2101 is greater than or equal to the first preset pressure, so that the sealing door 211 is sealed and closed under the action of the high pressure in the storage bin 21. Before opening the sealing door 211, it is necessary to balance the air pressure inside and outside the storage bin 21 through the air release valve 26.

[0112] Optionally, in this example, the first preset pressure can be 1.2 times the atmospheric pressure, 1.3 times the atmospheric pressure, 1.5 times the atmospheric pressure, etc., and the second preset pressure can be 1.15 times the atmospheric pressure, 1.1 times the atmospheric pressure, 1.05 times the atmospheric pressure, etc.

[0113] In another example, the cleaned offshore pipeline 30 is placed on the storage rack 232, and the sealing door 211 is closed. Subsequently, the air release valve 26 is opened, and at the same time, the compressor 24 is started, and the one-way valve 25 is opened to introduce the slow-release gas in the gas tank 221 into the storage area 2101 through the first ventilation pipe 222. When the storage area 2101 is filled with the slow-release gas, the air release valve 26 and the compressor 24 are closed. Then the vacuum pump 28 and the air extraction valve are opened to extract the gas in the storage area 2101 until the pressure in the storage area 2101 is less than or equal to the third preset pressure, then the air extraction valve is closed to complete the storage operation. At this time, the pressure in the storage area 2101 is less than the atmospheric pressure, so that the offshore pipeline 30 can maintain a good storage environment in the storage area 2101, which is beneficial to reducing the risk of corrosion of the offshore pipeline 30. The pressure in the storage area 2101 is monitored by the pressure gauge 29. When the pressure in the storage area 2101 is less than or equal to the fourth preset pressure, the vacuum pump 28 air extraction operation is restarted until the pressure in the storage area 2101 is greater than or equal to the third preset pressure, so that the sealing door 211 is sealed and closed under the action of the negative pressure in the storage bin 21. Before opening the sealing door 211, it is necessary to balance the air pressure inside and outside the storage bin 21 through the air release valve 26.

[0114] Optionally, in this example, the third preset pressure may be 0.5 times the atmospheric pressure, 0.6 times the atmospheric pressure, 0.8 times the atmospheric pressure, etc., and the fourth preset pressure may be 0.85 times the atmospheric pressure, 0.90 times the atmospheric pressure, 0.95 times the atmospheric pressure, etc.

[0115] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the relevant art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. An offshore pipeline protection system, characterized in that, Comprising: A cleaning device, the cleaning device includes a cleaning bin and a cleaning module, a drying module, and a conveying module located in the cleaning bin. The conveying module includes a first wheel set and a second wheel set. The rotation direction of the first wheel set is parallel to the circumferential direction of the offshore pipeline, and the rotation direction of the second wheel set is parallel to the length direction of the offshore pipeline. The height of the first wheel set in the height direction of the cleaning bin is adjustable so that the offshore pipeline abuts against the first wheel set or the second wheel set. The second wheel set is used to drive the offshore pipeline to output from the cleaning bin. The cleaning module is used to clean the offshore pipeline that abuts against the first wheel set, and the drying module is used to dry the offshore pipeline; A storage device, the storage device includes a storage bin and a gas supply module, and the gas supply module is used to introduce a corrosion inhibitor gas into the storage bin.

2. The offshore pipeline protection system according to claim 1, wherein, A displacement groove is provided on the bottom wall of the cleaning bin. The surface of the bottom wall of the cleaning bin is the first position, and the bottom of the displacement groove is the second position. The first wheel set includes a first pulley unit, a first pulley frame, and a first roller. The first pulley unit is arranged on the top of the first pulley frame, and the first roller is arranged on the bottom of the first pulley frame. The first roller is used to drive the first wheel set to switch between the first position and the second position. When the first wheel set is in the first position, the offshore pipeline abuts against the first wheel set. When the first wheel set is in the second position, the offshore pipeline abuts against the second wheel set.

3. The offshore pipeline protection system according to claim 1, characterized in that, The surface of the bottom wall of the cleaning bin has a first inclination angle along the length direction of the offshore pipeline, and one end of the cleaning bin close to the cleaning module is higher than the end far from the cleaning module.

4. The offshore pipeline protection system according to claim 1, characterized in that A first slide rail is provided on the top of the cleaning bin, and the first slide rail extends along the length direction of the offshore pipeline. The drying module includes a blower, a first slider, and a first telescopic frame. The first slider is slidably connected to the first slide rail. One end of the first telescopic frame is connected to the first slider, and the other end of the first telescopic frame is connected to the blower, and the first telescopic frame is telescopic in the height direction of the cleaning bin.

5. The offshore pipeline protection system according to claim 1, characterized in that, The cleaning module includes a first cleaning component and a second cleaning component. The first cleaning component includes a first nozzle, a first bracket, and a driving wheel set. The first bracket is installed in the cleaning bin and is located at one end of the offshore pipeline. The first nozzle passes through the driving wheel set and abuts against the first bracket, and the first nozzle is arranged corresponding to the pipe orifice of the offshore pipeline. The driving wheel set is used to drive the first nozzle to move along the length direction of the offshore pipeline so that the first nozzle displaces inside the offshore pipeline. A second slide rail is provided on the top of the cleaning bin, and the second cleaning component is slidably connected to the second slide rail.

6. The offshore pipeline protection system according to claim 1, wherein, The storage bin is provided with a partition plate, so that the storage bin is divided into a storage area and a control area. The gas supply module includes a gas cylinder and a first ventilation pipe. The gas cylinder is installed in the control area, and the gas cylinder is filled with a corrosion inhibitor gas. The first ventilation pipe is connected to the air outlet of the gas cylinder and penetrates through the partition plate. The offshore pipeline is stored in the storage area.

7. The offshore pipeline protection system according to claim 6, characterized in that, A movable sealing door is provided at one end of the storage area away from the partition plate. The offshore pipeline enters the storage area through the sealing door. The storage device further includes a compressor, a one-way valve and a relief valve. The compressor is installed in the control area and connected to the first ventilation pipe. The one-way valve is arranged on the first ventilation pipe. The relief valve is arranged on the partition plate and communicates the storage area with the control area.

8. The offshore pipeline protection system according to claim 7, wherein, The relief valve includes a sleeve, a first elastic member and a valve switch. The sleeve is installed on the partition plate and has a hollow part communicating the storage area with the control area. The valve switch includes a movable shaft, a sealing part and a pressing part. The movable shaft penetrates through the hollow part. The sealing part is connected to one end of the movable shaft close to the sealing door. The pressing part is connected to one end of the movable shaft away from the sealing door. The first elastic member is sleeved on the outer periphery of the movable shaft and is located between the pressing part and the partition plate. The pressing part is used to push the movable shaft in the direction of the sealing part under the action of an external force, so that the sealing part is separated from the partition plate to form an exhaust channel.

9. The offshore pipeline protection system according to claim 1 or 6, characterized in that, The storage device includes a storage module arranged in the storage bin. The storage module includes a fixed frame, a storage rack and a movable rack. The fixed frame has a multi-layer support frame structure along the height direction of the storage bin. The number of the storage racks is multiple, and the multiple storage racks are sequentially arranged at intervals along the height direction of the storage bin. Each storage rack is slidably connected to the fixed frame. The storage rack is provided with a plurality of installation grooves for accommodating the offshore pipeline. The movable rack is arranged at an interval from the fixed frame and is movable relative to the fixed frame. The movable rack is used to support the storage rack when the storage rack moves relative to the fixed frame to the outside of the storage bin.

10. A ship, characterized in that, It includes the offshore pipeline protection system according to any one of claims 1-9.

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