Shipborne cavitation water jet cleaning device for aquaculture net cages

Abstract

The application discloses a ship-mounted type cavitation water jet breeding net cage cleaning device, relates to the technical field of breeding net cage cleaning and daily maintenance of breeding net cages, and comprises cage frames which are open at both ends, wherein the cage frame is in a cylindrical shape formed by at least two arc frame combinations, at least one set of longitudinal rolling brushes which can drive the breeding net cage to rotate in the cage frame is installed on the cage frame, and a plurality of cleaning heads for cleaning the breeding net cage are further installed on the cage frame. The application not only enables the breeding net cage to be mechanically cleaned, but also enables the breeding net cage to be cleaned without being taken back to the shore during the cleaning process, so that the labor intensity of workers is greatly reduced, environmental pollution is reduced, and the cleaning efficiency of the breeding net cage is improved.

Description

Technical Field

[0001] This invention relates to the field of aquaculture cage cleaning and daily maintenance technology, and more specifically, to a ship-mounted cavitation water jet aquaculture cage cleaning device. Background Technology

[0002] Hanging cage culture is one of the main aquaculture methods. The hanging cages are easily attached to algae, shellfish and other organisms in the water. Undigested feed and excrement from the cultured organisms also provide nutrients for the attached organisms, thus aggravating their growth. However, the attached organisms not only compete for nutrients with the cultured organisms, but also clog the mesh of the hanging cages, causing problems such as poor water exchange, reduced dissolved oxygen and frequent fish diseases. In addition, the proliferation of attached organisms will increase the load on the hanging cages and affect the safety of the aquaculture facilities.

[0003] Currently, the main method for cleaning organisms attached to aquaculture cages is to bring the cages back to shore and clean them using high-pressure water jets or manual beating, while the wastewater is directly discharged into the sea. This cleaning method is not only labor-intensive, costly, and polluting, but also reduces the lifespan of the aquaculture cages. Therefore, there is an urgent need to develop in-situ cleaning equipment for aquaculture cages that can adapt to the characteristics of attached organisms in aquaculture areas, thereby promoting the mechanization and simplification of the cage aquaculture industry and fostering its healthy development. Summary of the Invention

[0004] The purpose of this invention is to provide a shipborne cavitation water jet aquaculture cage cleaning device, which not only enables mechanical cleaning of aquaculture cages, but also eliminates the need to bring the cages back to shore during the cleaning process, greatly reducing the labor intensity of workers, reducing environmental pollution, and improving the cleaning efficiency of aquaculture cages.

[0005] To achieve the purpose of this invention, the technical solution adopted is as follows: a shipborne cavitation water jet aquaculture cage cleaning device, including a cage frame with open ends, and the cage frame is a cylindrical shape formed by combining at least two arc frames. At least one set of longitudinal roller brushes that can drive the aquaculture cage to rotate inside the cage frame are installed on the cage frame, and multiple cleaning heads for cleaning the aquaculture cage are also installed on the cage frame.

[0006] Furthermore, the longitudinal roller brush extends along the axial direction of the cage frame, and there is at least one longitudinal roller brush in each group.

[0007] Furthermore, at least one set of transverse roller brushes is installed on the cage frame. The transverse roller brushes extend along the chord length of the cage frame, and multiple sets of transverse roller brushes are arranged at intervals from the inlet end to the outlet end of the cage frame. Multiple transverse roller brushes in each set are arranged at intervals along the circumference of the cage frame.

[0008] Furthermore, the transverse roller brush and the longitudinal roller brush are connected by a gear transmission.

[0009] Furthermore, the multiple cleaning heads are arranged at intervals along the length of the cage frame.

[0010] Furthermore, the two adjacent cleaning heads are arranged in a staggered manner.

[0011] Furthermore, the cleaning head includes a cleaning disc rotatable on a cage frame, on which blades and multiple high-pressure nozzles are mounted.

[0012] Furthermore, the multiple high-pressure nozzles are arranged at intervals along the circumference of the cleaning disc, and the outlet ends of the multiple high-pressure nozzles are all inclined towards the same circumference of the cleaning disc.

[0013] Furthermore, the angle between the high-pressure nozzle and the cleaning disc is 30°.

[0014] Furthermore, an elastic seat is installed on the cage frame, and a rotary joint is installed on the elastic seat. The cleaning disc is fixed on the inner tube of the rotary joint, and multiple high-pressure nozzles are connected to the inner tube of the rotary joint through pipes.

[0015] Furthermore, the elastic seat includes a fixed shaft fixed to the rotary joint, the upper end of the fixed shaft extending outward through the cage frame, and the extended end of the fixed shaft having a limiting plate; a compression spring is also sleeved on the fixed shaft, pressing against the rotary joint and the inner wall of the cage frame.

[0016] Furthermore, it also includes a high-pressure water pump, the outlet of which is connected to a rotary joint on multiple cleaning discs.

[0017] Furthermore, a guide plate is also installed at the inlet end of the cage frame, with the end of the guide plate away from the cage frame inclined outwards.

[0018] Furthermore, the tilt angle of the guide plate is adjustable.

[0019] Furthermore, the cage frame includes an upper frame and a lower frame, which are detachably connected.

[0020] Furthermore, the lower frame also has a suspension structure on its outer wall that can be hung on the ship's side.

[0021] The beneficial effects of this invention are:

[0022] In practical use, this invention is mounted on the side of a working vessel. As the vessel moves forward, the vessel and the aquaculture cage move relative to each other. As the vessel moves forward, the aquaculture cage gradually enters the front end of the cage frame. From the moment the aquaculture cage enters the cage frame, the longitudinal roller brush drives the aquaculture cage to move backward and rotate within the cage frame. During this backward rotation, the cleaning head cleans the surface of the aquaculture cage. Finally, as the working vessel continues to move forward, the aquaculture cage is smoothly delivered from the rear end of the cage frame, and the cleaning head completes the cleaning of the aquaculture cage surface.

[0023] This invention not only enables mechanical cleaning of aquaculture cages, but also eliminates the need to bring the cages back to shore during the cleaning process, greatly reducing labor intensity, minimizing environmental pollution, and improving cleaning efficiency. Furthermore, this invention not only makes cleaning aquaculture cages more convenient, but also facilitates installation and disassembly.

[0024] This invention also allows for routine maintenance of aquaculture cages, such as feeding and seedling separation, by removing the upper frame. This makes operation more convenient and efficient, effectively improving the economic benefits of aquaculture cage farming, promoting the mechanization of aquaculture cage cleaning, and contributing to the healthy development of the aquaculture industry. Attached Figure Description

[0025] The accompanying drawings illustrate exemplary embodiments of the invention and, together with the description thereof, serve to explain the principles of the invention. These drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification.

[0026] Figure 1 This is a schematic diagram of the structure of the shipborne cavitation water jet aquaculture cage cleaning device provided by the present invention.

[0027] Figure 2 This is a structural diagram of the upper frame;

[0028] Figure 3 This is a structural diagram of the lower frame;

[0029] Figure 4 This is the front view of the cleaning head;

[0030] Figure 5 This is a schematic diagram of the cleaning head;

[0031] Figure 6 This is a bottom view of the washing head;

[0032] Figure 7 This is an installation diagram of the shipborne cavitation water jet aquaculture net cage cleaning device provided by the present invention.

[0033] Figure 8This is a schematic diagram of the operation of the shipborne cavitation water jet aquaculture cage cleaning device provided by the present invention.

[0034] Figure 9 This is a schematic diagram of the maintenance operation of aquaculture net cages using the shipborne cavitation water jet aquaculture net cage cleaning device provided by the present invention.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] 1. Cage frame; 2. Horizontal roller brush; 3. Vertical roller brush; 4. Cleaning head; 5. Suspension device; 6. Guide plate; 7. Bevel gear; 8. Fixed shaft; 9. Limiting plate; 10. Compression spring; 11. Rotary joint; 12. High-pressure water pump.

[0037] 101. Upper frame; 102. Lower frame; 103. Sleeve; 104. Shaft.

[0038] 401. Cleaning disc; 402. High-pressure nozzle; 403. Blade. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] In the field of cage aquaculture, the general practice is to lay multiple parallel cables in shallow water, load the aquatic products into the aquaculture cages, and then evenly suspend the multiple aquaculture cages containing the aquatic products on the cables.

[0042] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a shipborne cavitation water jet aquaculture cage cleaning device, comprising a cage frame 1 matching the shape of the aquaculture cage. The cage frame 1 is a cylindrical shape formed by combining at least two arc frames. The diameter of the cage frame 1 is slightly larger than the outer diameter of the aquaculture cage, and the length of the cage frame 1 is slightly larger than the length of the aquaculture cage. The cage frame 1 has a frame structure, and both ends of the cage frame 1 are open, allowing the aquaculture cage to enter from one end of the cage frame 1 and exit from the other end. In this invention, when the aquaculture cage is inserted into the cage frame 1, the axial direction of the aquaculture mesh is consistent with the axial direction of the cage frame 1.

[0043] The cage frame 1 is equipped with a longitudinal roller brush 3. Both ends of the longitudinal roller brush 3 are rotatably supported on the cage frame 1. The longitudinal roller brush 3 is at least a group, and there is at least one longitudinal roller brush 3 in the same group. When the breeding net cage enters from one end of the cage frame 1 and is sent out from the other end of the cage frame 1, the longitudinal roller brush 3 rotates fully on the cage frame 1, thereby driving the breeding net cage to rotate fully inside the cage frame 1 when passing through the cage frame 1. Because the arrangement of the longitudinal rollers 3 reduces the diameter of the passage space within the cage frame 1, and the aquaculture net cage itself has relatively low structural strength, it can shrink under radial compression. Therefore, to ensure that the longitudinal rollers 3, after installation, can rotate synchronously with the aquaculture net cage through friction between the rollers 3 and the cage, the minimum diameter of the passage space formed by the rollers of multiple longitudinal rollers 3 must be slightly smaller than the outer diameter of the aquaculture net cage, or the minimum diameter of the passage space formed by the roller of one longitudinal roller 3 and the inner wall of the cage frame 1 must be slightly smaller than the outer diameter of the aquaculture net cage. It should be noted that the passage space here refers to the cylindrical space through which the aquaculture net cage can pass.

[0044] The cage frame 1 is also equipped with multiple cleaning heads 4, which can be installed at different positions on the cage frame 1. When the breeding net cage enters and passes through the cage frame 1, the cleaning heads 4 start to clean the net cage. Since the breeding net cage rotates while moving backward, the cleaning heads 4 can complete the cleaning of the entire breeding net cage even if the position of the cleaning heads 4 does not change.

[0045] When cleaning the aquaculture cages is required, the cage frame 1 is mounted on the side of the work vessel. The work vessel moves forward along the cable used to hoist the aquaculture cages. As the work vessel moves forward, the relative position between the work vessel and the aquaculture cages changes. When the front end of the cage frame 1 mounted on the work vessel approaches the aquaculture cage, since the position of the aquaculture cage itself does not change, the cage frame 1 will push the aquaculture cage to gradually tilt until it is horizontal as the work vessel moves forward. This allows the upper end of the aquaculture cage to gradually enter the front end of the cage frame 1. From the moment the aquaculture cage enters the cage frame 1, the longitudinal roller brush 3 drives the aquaculture cage to move backward and rotate within the cage frame 1. During the backward rotation and rotation of the aquaculture cage, the cleaning head 4 cleans the surface of the aquaculture cage. Finally, as the work vessel continues to move forward, the aquaculture cage is smoothly sent out from the rear end of the cage frame 1, and the cleaning head 4 completes the cleaning of the surface of the aquaculture cage.

[0046] The axial direction of the longitudinal roller brush 3 is consistent with the axial direction of the cage frame 1. When the breeding net cage enters the cage frame 1, the axial direction of the longitudinal roller brush 3 is consistent with the axial direction of the breeding net cage. Through the rotation of the longitudinal roller brush 3 and the friction between the longitudinal roller brush 3 and the breeding net cage, the longitudinal roller brush 3 drives the breeding net cage to rotate while rotating, so that the breeding net cage can rotate during the process of entering and passing through the cage frame 1.

[0047] During installation, the longitudinal roller brush 3 is rotatably supported on the inner wall of the cage frame 1 by bearing seats at both ends. In this invention, when the longitudinal roller brush 3 is in a group, its length matches the length of the cage frame 1; when there are multiple groups of longitudinal roller brushes 3, their total length matches the length of the cage frame 1. Of course, in this invention, there can be one or more longitudinal roller brushes 3 in the same group. When there is a group of longitudinal roller brushes 3, multiple longitudinal roller brushes 3 are preferred; when there are multiple groups of longitudinal roller brushes 3, there can be one or more longitudinal roller brushes 3 in the same group. Furthermore, when the longitudinal roller brush 3 is in a group or / and each group contains multiple longitudinal roller brushes 3, the multiple longitudinal roller brushes 3 in the same group are arranged at intervals along the circumference of the cage frame 1. When there are multiple groups of longitudinal roller brushes 3, and each group contains only one longitudinal roller brush 3, the longitudinal roller brushes 3 in adjacent groups can be arranged in a staggered manner. Through the coordinated action of multiple longitudinal roller brushes 3, the aquaculture cage can be rotated by friction with the longitudinal roller brushes 3 throughout the entire process of entering, passing through the cage frame 1 and being sent out, thereby ensuring that the cleaning head 4 cleans the aquaculture cage.

[0048] like Figure 1 , Figure 3 As shown, at least one set of transverse roller brushes 2 are also installed on the cage frame 1. When there is one set of transverse roller brushes 2, the set of transverse roller brushes 2 is located at the end of the cage frame 1 where the aquaculture net cage first enters. When there are two or more sets of transverse roller brushes 2, it is necessary to ensure that two sets of transverse roller brushes 2 are located at opposite ends of the cage frame 1. When the transverse roller brushes 2 are laid out, the axial direction of the transverse roller brushes 2 is consistent with the chord direction of the cage frame 1. That is, after the transverse roller brushes 2 and the longitudinal roller brushes 3 are installed, the axial direction of the transverse roller brushes 2 is perpendicular to the axial direction of the longitudinal roller brushes 3. At the same time, there is at least one transverse roller brush 2 in each set. When there is only one transverse roller brush 2 in each group, the transverse roller brush 2 in that group is located at the bottom of the cage frame 1. When the breeding cage enters and passes through the cage frame 1, the transverse roller brush 2 in each group supports the breeding cage. When there are multiple transverse roller brushes 2 in each group, the multiple transverse roller brushes 2 in that group are arranged at intervals along the circumference of the cage frame 1. When the breeding cage enters and passes through the cage frame 1, the multiple transverse roller brushes 2 in each group uniformly press the circumference of the breeding cage.

[0049] In this invention, after the transverse roller brush 2 is installed, regardless of whether there is one or more transverse roller brushes 2 in each group, the rolling surface of the transverse roller brush 2 always maintains frictional contact with the outer wall of the aquaculture net cage during the process of the aquaculture net cage entering and passing through the cage frame 1. That is, during the process of the aquaculture net cage entering the cage frame 1, the transverse roller brush 2 can be driven to rotate through the frictional contact between the outer wall of the aquaculture net cage and the rolling surface of the transverse roller brush 2. This allows the transverse roller brush 2 to guide the aquaculture net cage into the cage frame 1, reducing the friction between the aquaculture net cage and the cleaning frame. This not only allows the aquaculture net cage to enter the cage frame 1 more smoothly, but also allows the aquaculture net cage to pass through the cage frame 1 smoothly and be sent out of the cage frame 1. At the same time as the transverse roller brush 2 rotates, it can also clean and scrape off a certain amount of shellfish, algae and other attached substances on the aquaculture net cage.

[0050] Because the arrangement of the transverse rollers 2 reduces the diameter of the passage space inside the cage frame 1, and the aquaculture net cage itself has relatively low structural strength, the aquaculture net cage can shrink to a certain extent when subjected to radial compression. Therefore, in order to ensure that the aquaculture net cage can move more smoothly through the friction between the transverse rollers 2 and the aquaculture net cage when entering and passing through the cage frame 1 after the transverse rollers 2 are installed, the minimum diameter of the passage space formed by the roller surfaces of multiple transverse rollers 2 in the same group should be slightly smaller than the outer diameter of the aquaculture net cage, or the minimum diameter of the passage space formed by the roller surface of one transverse roller 2 in the same group and the inner wall of the cage frame 1 should be slightly smaller than the outer diameter of the aquaculture net cage.

[0051] It should be noted that the passage space here refers to the cylindrical space through which the aquaculture net cage can pass; when there are multiple transverse rollers 2 in the same group, the multiple transverse rollers 2 in the same group together form a polygon. At this time, the passage space is the inscribed circle of the polygon. When there are multiple groups of transverse rollers 2, the inscribed circle of the polygon formed by the multiple transverse rollers 2 in each group is of equal size, and the center of the inscribed circle of the polygon formed by the multiple transverse rollers 2 in each group is on the same straight line.

[0052] To facilitate the driving of the longitudinal roller brush 3, the transverse roller brush 2 and the longitudinal roller brush 3 can be connected by gear transmission in this invention. Since the transverse roller brush 2 rotates as the aquaculture cage enters and passes through the cage frame 1, and the transverse roller brush 2 and the longitudinal roller brush 3 are connected by gear transmission, the longitudinal roller brush 3 rotates as the aquaculture cage enters and passes through the cage frame 1. This eliminates the need for an additional power structure to drive the rotation of the longitudinal roller brush 3, simplifying the structure of this invention.

[0053] In this invention, since the central axis of the longitudinal roller brush 3 is perpendicular to the central axis of the transverse roller brush 2, during actual installation, one end of the longitudinal roller brush 3 and one end of the transverse roller brush 2 need to be arranged close together. Bevel gears 7 are installed at both ends of the longitudinal roller brush 3 and the transverse roller brush 2, and the transmission between the transverse roller brush 2 and the longitudinal roller brush 3 is achieved through the meshing of the two bevel gears 7. To meet the rotational speed requirements of the aquaculture net cage as it enters the cage frame 1, the reduction ratio of the two meshing bevel gears 7 can be adjusted by replacing the corresponding gears, thereby changing the cleaning efficiency of the cleaning head 4 on the aquaculture net cage to ensure that the entire aquaculture net cage is thoroughly cleaned.

[0054] In this invention, each longitudinal roller brush 3 can be driven to one of the transverse roller brushes 2 in a group through one end, or each longitudinal roller brush 3 can be driven to one of the transverse roller brushes 2 in two groups through both ends; at the same time, in order to satisfy the driving of the longitudinal roller brush 3, in a group of longitudinal roller brushes 3 and a group of transverse roller brushes 2 located in adjacent positions, the number of longitudinal roller brushes 3 in the group is not greater than the number of transverse roller brushes 2 in the group.

[0055] Specifically, in this invention, there are two groups of longitudinal roller brushes 3 and three groups of transverse roller brushes 2. Each group contains one longitudinal roller brush 3, and the longitudinal roller brushes 3 in the two groups are staggered. The three groups of transverse roller brushes 2 are located at both ends and the middle of the cage frame 1, respectively. The group located at both ends of the cage frame 1 contains three transverse roller brushes 2, and the group located in the middle of the cage frame 1 contains two transverse roller brushes 2. One transverse roller brush 2 located at the front end of the cage frame 1 meshes with a longitudinal roller brush 3 near the front end of the cage frame 1, and one transverse roller brush 2 located at the rear end of the cage frame 1 meshes with a longitudinal roller brush 3 near the rear end of the cage frame 1.

[0056] In this invention, multiple cleaning heads 4 are arranged at intervals along the length of the cage frame 1, and the axial distance between two adjacent cleaning heads 4 can be equal or unequal, and the specific axial distance between two adjacent cleaning heads 4 can be adjusted according to the actual situation. Since the aquaculture net cage rotates while passing through the cage frame 1, and the position of the cleaning heads 4 on the cage frame 1 is fixed, the path of the cleaning heads 4 on the aquaculture net cage when passing through the cage frame 1 is actually a spiral cleaning path. In this invention, by having multiple cleaning heads 4 installed on the cage frame 1 cooperate, multiple cleaning paths can exist simultaneously on the aquaculture net cage during the process of the aquaculture net cage passing through the cage frame 1. Through the cooperation of multiple cleaning paths, the cleaning effect of the aquaculture net cage is better.

[0057] like Figure 1 , Figure 2As shown, in this invention, the multiple cleaning heads 4 can be arranged in a staggered manner, so that when the aquaculture net cage passes through the cage frame 1, the initial contact points between the multiple cleaning heads 4 and the aquaculture net cage are different. This ensures that the cleaning paths of the multiple cleaning heads 4 on the aquaculture net cage do not overlap, allowing the multiple cleaning heads 4 to work together to clean the aquaculture net cage more thoroughly. When there are multiple cleaning heads 4 in this invention, the multiple cleaning heads 4 are evenly spaced along the circumference of the cage frame 1, so that the included angle between two adjacent cleaning heads 4 in the circumference of the cage frame 1 is equal. For example, when there are three cleaning heads 4, the three cleaning heads 4 are located at 120°, 240°, and 360° along the circumference of the cage frame 1, respectively. Of course, when there are multiple cleaning heads 4 in this invention, the included angle between two adjacent cleaning heads 4 in the circumference of the cage frame 1 can also be unequal. As long as the cleaning requirements of the aquaculture net cage are met, the included angle between two adjacent cleaning heads 4 in the circumference of the cage frame 1 can be arranged arbitrarily.

[0058] like Figure 4 , Figure 5 , Figure 6 As shown, the cleaning head 4 includes a cleaning disc 401, which is located inside the cage frame 1. The diameter of the cleaning disc 401 is aligned with the axial direction of the cage frame 1, and the cleaning disc 401 can rotate fully relative to the cage frame 1. The cleaning disc 401 is also equipped with multiple blades 403 and multiple high-pressure nozzles 402. The multiple high-pressure nozzles 402 and multiple blades 403 are evenly spaced along the circumference of the cleaning disc 401. When the high-pressure water flows through the high-pressure nozzles 402, the high-pressure water flow forms a cavitation jet inside the high-pressure nozzles 402. The crushing force generated by the rupture of a large number of cavitation bubbles in the cavitation jet cleans the attached organisms on the aquaculture net cage, while the blades 403 break and scrape off the attached organisms on the aquaculture net cage through the cleaning disc 401.

[0059] To prevent the high-pressure nozzle 402 from directly hooking onto the aquaculture net cage before the blade 403 breaks and scrapes off the organisms attached to the net cage during the rotation of the cleaning disc 401, the height of the high-pressure nozzle 402 on the cleaning disc 401 is lower than the height of the blade 403 on the cleaning disc. This ensures that the high-pressure nozzle 402 will not come into contact with the aquaculture net cage during the rotation of the cleaning disc 401, thus preventing damage to the net cage. Simultaneously, to prevent the blade 403 from hooking onto the net cage during the rotation of the cleaning disc 401, the cutting edge of the blade 403 can be set at an angle. Based on the rotation direction of the cleaning disc 401, the height of the blade 403's cutting edge on the cleaning disc 401 gradually decreases, ensuring that the blade 403 breaks and scrapes off the organisms attached to the net cage without damaging it during the rotation of the cleaning disc 401. To make the cutting edge of blade 403 smoother, the cutting edge of blade 403 and the two sides of blade 403 are connected by an arc, so as to avoid blade 403 from getting caught on the aquaculture net cage as much as possible.

[0060] To drive the cleaning disc 401, multiple high-pressure nozzles 402 can be evenly spaced along the circumference of the cleaning disc 401. When installing the high-pressure nozzles 402, the outlet ends of the multiple high-pressure nozzles 402 are all tilted in the same circumferential direction of the cleaning disc 401. It should be noted that the tilt of the high-pressure nozzles 402 is not radial to the cleaning disc 401, but tangential to the ring formed by the multiple high-pressure nozzles 402. Since multiple high-pressure nozzles 402 are fixed on the cleaning disc 401, and the high-pressure water jet exerts a reverse force on the high-pressure nozzles 402 while being sprayed out, the reverse force on the high-pressure nozzles 402 is inclined along the tangent direction of the ring formed by the multiple high-pressure nozzles 402. Therefore, through the cooperation of multiple high-pressure nozzles 402, when multiple high-pressure nozzles 402 spray high-pressure water jets at the same time, the reverse force on the multiple high-pressure nozzles 402 acts together on the cleaning disc 401, causing the cleaning disc 401 to rotate fully on the cage frame 1. This eliminates the need for an additional power structure to drive the cleaning disc 401, making its operation simpler. At the same time, through the rotation of the cleaning disc 401, the blades 403 on the cleaning disc 401 rotate synchronously, thereby ensuring that the blades 403 crush and scrape off the organisms attached to the aquaculture cage.

[0061] In this invention, to prevent the blade 403 from tearing the aquaculture net cage during the crushing and scraping of organisms attached to it, the cutting edge of the blade 403 is set at an angle. Therefore, to ensure that the cleaning disc 401 aligns with the angle of the blade 403's cutting edge during rotation, the high-pressure nozzle 402 must be installed with the same angle as the blade 403's cutting edge. Specifically, the lower end of the high-pressure nozzle 402 is on the same side as the lower end of the blade 403's cutting edge, and the higher end of the high-pressure nozzle 402 is on the same side as the higher end of the blade 403's cutting edge. Located on the same side, the lower end of the blade 403 is the end with a higher blade edge on the cleaning disc 401, and the higher end of the blade 403 is the end with a lower blade edge on the cleaning disc 401. When the high-pressure water sprayed from the multiple high-pressure nozzles 402 drives the cleaning disc 401 to rotate, the height of the blade 403 on the cleaning disc 401 gradually decreases based on the rotation direction of the cleaning disc 401, thereby preventing the blade 403 from tearing the aquaculture net cage when it breaks or scrapes off the attached organisms.

[0062] The included angle between the high-pressure nozzle 402 and the cleaning disc 401 is 30°, and the specific angle between the high-pressure nozzle 402 and the cleaning disc 401 can be adjusted according to the actual situation.

[0063] Since the surface of the aquaculture net cage is not flat, in order to ensure that the cleaning head 4 is always in contact with the surface of the cage frame 1 during the cleaning process, an elastic seat must be installed on the cage frame 1 before the cleaning head 4 is installed. The elastic force direction of the elastic seat is consistent with the radial direction of the cage frame 1. At the same time, a rotary joint 11 is also installed on the elastic seat. The rotary joint 11 itself is a direct use of existing technology. The outer wall of the rotary joint 11 has a water inlet for pipe connection, and the inner tube of the rotary joint 11 serves as the water outlet. The extension end of the inner tube of the rotary joint 11 is connected to the structure that performs the rotational movement.

[0064] Since the high-pressure nozzle 402 is fixed on the cleaning disc 401 in this invention, and both the high-pressure nozzle 402 and the rotating disc need to rotate, the rotating disc is directly fixed on the inner tube extension end of the rotary joint 11 during installation. The inner tube extension end of the rotary joint 11 is connected to multiple high-pressure nozzles 402 through pipes, which not only ensures the delivery of high-pressure water flow to each high-pressure nozzle 402, but also allows the cleaning disc 401 to rotate fully relative to the cage frame 1.

[0065] As the aquaculture cage passes through the cage frame 1, the elastic seat can move towards the outer wall of the aquaculture cage through its own elastic rotary joint 11 and the cleaning head 4 installed on the inner tube of the rotary joint 11, so that the cleaning head 4 is always pressed against the surface of the aquaculture cage, achieving a close cleaning of the aquaculture cage and ensuring the cleaning effect of the aquaculture cage.

[0066] The cleaning disc 401 is cap-shaped. At this time, the high-pressure nozzle 402 is fixed on the inner top of the cleaning disc 401, and the blade 403 is fixed on the edge of the cleaning disc 401 by screws. At the same time, in order to reduce the weight of the cleaning disc 401, the top surface of the cleaning disc 401 can be removed, and then staggered connecting rods can be installed inside the cleaning disc 401. At this time, the high-pressure nozzle 402 can be fixed on the connecting rods, and the center of the staggered connection of the multiple connecting rods can be fixed on the inner tube extension end of the rotary joint 11.

[0067] like Figure 4 , Figure 5 As shown, the elastic seat includes a fixed shaft 8 fixed on the rotary joint 11. The central axis of the fixed shaft 8 is on the same straight line as the central axis of the rotary joint 11. Since the outer shell of the rotary joint 11 does not rotate, the fixed shaft 8 will not rotate after being installed on the rotary joint 11. The cage frame 1 also has a mounting hole that fits the fixed shaft 8 with a clearance. The end of the fixed shaft 8 away from the rotary joint 11 extends outward through the mounting hole, and the extended end of the fixed shaft 8 has a limiting plate 9. The diameter of the limiting plate 9 is larger than the diameter of the mounting hole on the cage frame 1 to prevent the fixed shaft 8 from falling directly off the cage frame 1. A compression spring 10 is also sleeved on the fixed shaft 8. One end of the compression spring 10 is pressed against the inner wall of the cage frame 1, and the other end of the compression spring 10 is pressed against the rotary joint 11.

[0068] When the aquaculture cage passes through the cage frame 1, if the surface of the aquaculture cage is convex outward when it corresponds to the cleaning head 4, the aquaculture cage will exert a pushing force on the cleaning head 4 towards the cage frame 1. After receiving the pushing force towards the cage frame 1, the cleaning head 4 transmits it to the rotary joint 11. The rotary joint 11, after being subjected to force, compresses the compression spring 10. During the compression process, the fixed shaft 8 moves outward towards the cage frame 1, ensuring that the aquaculture cage passes through the cage frame 1 smoothly. If the surface of the aquaculture cage is concave inward when it corresponds to the cleaning head 4, there is a certain gap between the aquaculture cage and the cleaning head 4. At this time, the compression spring 10 pushes the rotary joint 11 towards the outer wall of the aquaculture cage through its own elasticity. At the same time, the rotary joint 11 drives the fixed shaft 8 and the cleaning head 4 to move synchronously towards the outer wall of the aquaculture cage, thereby making the cleaning head 4 press against the outer wall of the aquaculture cage, ensuring that the cleaning head 4 cleans the aquaculture cage.

[0069] like Figure 7 , Figure 8As shown, the present invention also includes a high-pressure water pump 12. Since the present invention needs to be mounted on a working vessel for use, the high-pressure water pump 12 can be directly installed on the working vessel. In use, the high-pressure water pump 12 can directly draw water from the sea, and the outlet end of the high-pressure water pump 12 can be connected to the rotary joints 11 on multiple cleaning discs 401 respectively, so that the seawater drawn by the high-pressure water pump 12 can be directly used by the high-pressure nozzles 402 on multiple cleaning discs 401. Water intake is convenient, and the water used to clean the aquaculture cages is the same as the water required by the aquatic products in the aquaculture cages. This not only ensures that the water used to clean the aquaculture cages will not cause discomfort to the aquatic products in the aquaculture cages, but also allows the water after cleaning the aquaculture cages to be directly discharged into the sea without causing environmental pollution.

[0070] To ensure that the aquaculture net cage can smoothly enter the cage frame 1, a guide plate 6 can be installed at the inlet end of the cage frame 1. At the same time, since the aquaculture net cage is suspended on the cable during the aquaculture process, and the aquaculture net cage first contacts the bottom of the cage frame 1 as it gradually tilts into the cage frame 1, the guide plate 6 can be directly installed at the bottom of the inlet end of the cage frame 1, and the end of the guide plate 6 away from the cage frame 1 is tilted outwards from the cage frame 1.

[0071] By installing the guide plate 6, the aquaculture net cage can be supported on the guide plate 6 as it gradually enters the cage frame 1. As the working vessel moves forward, the aquaculture net cage can be guided by the guide plate 6 to gradually enter the cage frame 1, effectively reducing the friction between the aquaculture net cage and the inlet end of the cage frame 1, making it easier for the aquaculture net cage to enter the cage frame 1.

[0072] To prevent the extended end of the guide plate 6 from hooking the aquaculture cage when it enters the guide plate 6, the extended end of the guide plate 6 can be further folded outward so that the aquaculture cage directly contacts the folded arc of the extended end of the guide plate 6 when it comes into contact with the guide plate 6, thereby effectively preventing damage to the aquaculture cage.

[0073] The tilt angle of the guide plate 6 installed on the cage frame 1 can be adjusted according to the state of the breeding net cage entering the cage frame 1. In order to facilitate the adjustment of the tilt angle of the guide plate 6, a bushing can be installed on the cage frame 1 and a pin can be installed on the guide plate 6. The pin is inserted into the bushing so that the guide plate 6 can rotate on the cage frame 1. In order to lock the guide plate 6 to the cage frame 1 after it rotates to a fixed angle, threads can be opened at both ends of the pin and nuts can be fitted at both ends of the pin. By tightening the nuts, the pin and the bushing are locked and fixed, thereby fixing the guide plate 6 to the cage frame 1.

[0074] like Figure 1 , Figure 2 , Figure 3As shown, the cage frame 1 includes an upper frame 101 and a lower frame 102. The upper frame 101 and the lower frame 102 are semi-circular arc-shaped and detachably connected, allowing the entire cage frame 1 to be installed on the work vessel or only the lower frame 102 to be installed on the work vessel according to actual needs. For example, when the aquaculture cage needs to be cleaned, the entire cage frame 1 needs to be installed on the work vessel. In this case, the upper frame 101 and the lower frame 102 can be fixed. When it is only necessary to feed, separate seedlings, and observe the condition of the aquaculture cage inside the cage, the upper frame 101 in the cage frame 1 can be removed, and only the lower frame 102 can be installed on the work vessel. In this case, there is no need to clean the aquaculture cage.

[0075] Since the lower frame 102 is mainly used for feeding, separating, and observing the condition of the cultured organisms inside the aquaculture cages when used alone, the cleaning head 4 in this invention can be installed only on the upper frame 101. At the same time, the aquaculture cages still need to be rotated during the feeding, separating, and observation of the cultured organisms inside the cages. Therefore, the longitudinal roller brush 3 and the transverse roller brush 2 are preferentially installed on the lower frame 102 to effectively ensure that the aquaculture cages can smoothly enter the lower frame 102.

[0076] In this invention, to facilitate the installation and disassembly of the upper frame 101 and the lower frame 102, multiple sleeves 103 are installed on the mating edges of both the upper frame 101 and the lower frame 102. When the upper frame 101 and the lower frame 102 are closed, the multiple sleeves 103 on the mating edges of the upper frame 101 and the lower frame 102 are collinear. At this time, a shaft 104 is inserted into both the multiple sleeves 103 on the mating edges of the upper frame 101 and the lower frame 102 to complete the installation of the upper frame 101 and the lower frame 102. When it is necessary to remove the upper frame 101, the shaft 104 is simply pulled out and the upper frame 101 is removed. Of course, the upper frame 101 and the lower frame 102 in this invention can also be installed in other ways to facilitate installation and disassembly, for example, by locking the upper frame 101 and the lower frame 102 together.

[0077] To facilitate the use of this invention on the side of the working vessel, a suspension structure that can be hung on the side of the vessel also needs to be installed on the cage frame 1; at the same time, since the lower frame 102 can also be used independently, the suspension structure is preferentially installed on the lower frame 102 during the layout. The suspension structure is a hook.

[0078] Since this invention is frequently in contact with water during use, it is made of corrosion-resistant materials, such as 304 stainless steel or titanium alloy, to improve its corrosion resistance.

[0079] The specific working process of this invention is as follows:

[0080] like Figure 7 , Figure 8 As shown, the cage frame 1 is suspended on the side of the working vessel by the suspension device 5, the high-pressure water pump 12 is installed on the working vessel, and the inlet pipe of the high-pressure water pump 12 with filter is extended into the seawater. The outlet of the high-pressure water pump 12 is connected to the inlet of the rotary joint 11 in each cleaning head 4 by pipes.

[0081] The work vessel moves along the direction of the cable used to suspend the aquaculture cages. The forward movement of the work vessel causes the cage frame 1 to move synchronously forward, causing the aquaculture cages suspended on the cable to move backward relative to the cage frame 1. As the work vessel gradually moves forward, when the front end of the cage frame 1 on the work vessel approaches the aquaculture cage, since the position of the aquaculture cage itself does not change, the cage frame 1 will push the aquaculture cage to gradually tilt until it is horizontal as the work vessel moves forward. During this process, the aquaculture cage is gradually guided into the front end of the cage frame 1 by the guide plate 6. As the work vessel continues... As the aquaculture cage moves forward, it enters the inlet of cage frame 1. When the aquaculture cage comes into contact with the transverse roller brush 2 at the inlet of cage frame 1, the aquaculture cage pushes the transverse roller brush 2 to rotate through friction between the transverse roller brush 2 and the aquaculture cage. At the same time, the transverse roller brush 2 drives the longitudinal roller brush 3 to rotate through gear meshing. When the longitudinal roller brush 3 rotates, it not only makes the aquaculture cage rotate during the process of entering cage frame 1, but also allows the longitudinal roller brush 3 and the transverse roller brush 2 to initially clean and scrape off a certain amount of shellfish, algae and other attached substances on the aquaculture cage.

[0082] As the aquaculture cage gradually moves towards the outlet end of the cage frame 1, the high-pressure water pump 12 is activated. The high-pressure water pump 12 delivers high-pressure water to the rotary joint 11. The high-pressure water entering the rotary joint 11 is then sprayed out by multiple high-pressure nozzles 402 on the final cleaning disc 401. While spraying high-pressure water, the multiple high-pressure nozzles 402 drive the cleaning disc 401 to rotate. The rotation of the cleaning disc 401 drives the blades 403 to rotate synchronously. At the same time, when the aquaculture cage comes into contact with the cleaning head 4, the blades 403 driven by the cleaning disc 401 break up and scrape off the attached organisms on the aquaculture cage, while the high-pressure water sprayed by the high-pressure nozzles 402 washes away the remaining attached organisms on the aquaculture cage, thus completing the cleaning of the aquaculture cage.

[0083] As the aquaculture cage continues to move toward the outlet end of the cage frame 1, the aquaculture cage rotates through the cage frame 1. During this process, multiple cleaning heads 4 work together to finally clean the aquaculture cage. The cleaned aquaculture cage is then sent out from the outlet end of the cage frame 1, thus completing the cleaning operation of one aquaculture cage.

[0084] Repeat the above steps, and the work vessel will continue to move forward to complete the cleaning of the next aquaculture cage.

[0085] When routine maintenance of aquaculture cages is required, the specific procedures are as follows:

[0086] like Figure 9 As shown, the workers remove the upper frame 101 from the lower frame 102 and suspend the lower frame 102 on the side of the working vessel using the suspension device 5. The working vessel moves along the direction of the cable used to suspend the aquaculture net cage. The forward movement of the working vessel causes the cage frame 1 to move forward synchronously, causing the aquaculture net cage suspended on the cable to move backward relative to the cage frame 1. As the working vessel gradually moves forward, when the front end of the cage frame 1 on the working vessel approaches the aquaculture net cage, since the position of the aquaculture net cage itself does not change, the cage frame 1 will push the aquaculture net cage to gradually tilt until it is horizontal as the working vessel moves forward. During this process, the aquaculture net cage is guided by the feed... The guide plate 6 gradually enters the front end of the cage frame 1; as the working vessel continues to move forward, the aquaculture net cage enters the inlet end of the lower frame 102. When the aquaculture net cage comes into contact with the transverse roller brush 2 at the inlet end of the lower frame 102, the aquaculture net cage pushes the transverse roller brush 2 to rotate through friction between the transverse roller brush 2 and the aquaculture net cage. At the same time, the transverse roller brush 2 drives the longitudinal roller brush 3 to rotate through gear meshing. When the longitudinal roller brush 3 rotates, it not only makes the aquaculture net cage rotate during the process of entering the cage frame 1, but also allows the longitudinal roller brush 3 and the transverse roller brush 2 to initially clean and scrape off a certain amount of shellfish, algae and other attached substances on the aquaculture net cage.

[0087] As the aquaculture net cage rotates on the lower frame 102 and moves towards the outlet end of the lower frame 102, the staff can not only observe the rotation of the transverse roller brush 2 and the longitudinal roller brush 3, but also feed the aquatic products in the aquaculture net cage, separate the seedlings, and observe the growth of the aquatic products inside the aquaculture net cage, thereby completing the maintenance of an aquaculture net cage.

[0088] Repeat the above steps, and the work vessel will continue to move forward to complete the maintenance of the next aquaculture cage.

[0089] Once the routine maintenance of the aquaculture cages is completed, simply assemble and secure the upper frame 101 and the lower frame 102 together.

[0090] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0091] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0092] Those skilled in the art should understand that the above embodiments are merely for illustrating the present invention and are not intended to limit the scope of the invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A shipboard cavitation water jet net pen cleaning device, characterized in that, The cage frame (1) is a cylindrical shape formed by at least two circular arc frames, at least one set of longitudinal brush rollers (3) is installed on the cage frame (1) and can drive the breeding net cage to rotate in the cage frame (1), and a plurality of cleaning heads (4) for cleaning the breeding net cage are also installed on the cage frame (1); at least one set of transverse brush rollers (2) is also installed on the cage frame (1), the transverse brush rollers (2) extend along the chord length direction of the cage frame (1), and a plurality of the transverse brush rollers (2) in each set are arranged at intervals along the circumferential direction of the cage frame (1); the transverse brush rollers (2) and the longitudinal brush rollers (3) are connected through gear transmission; a plurality of the cleaning heads (4) are arranged at intervals along the length direction of the cage frame (1); adjacent two of the cleaning heads (4) are arranged in a staggered manner; the cleaning head (4) comprises a cleaning disc (401) which is rotatable on the cage frame (1), and a blade (403) and a plurality of high-pressure nozzles (402) are installed on the cleaning disc (401).

2. The on-board type cleaning device for a net cage for marine products by cavitation water jet according to claim 1, wherein The longitudinal brush rollers (3) extend along the axis direction of the cage frame (1), and at least one longitudinal brush roller (3) is arranged in each set.

3. The on-board cavitation water jet net-cleaning device according to claim 1, characterized in that, The plurality of high-pressure nozzles (402) are arranged at intervals along the circumferential direction of the cleaning disc (401), and the outlet ends of the plurality of high-pressure nozzles (402) are inclined towards the same circumferential direction of the cleaning disc (401).

4. The ship-mounted cavitation water jet cleaning device for fishnet pens according to claim 3, characterized in that, The included angle between the high-pressure nozzle (402) and the cleaning disc (401) is 30°.

5. The on-board cavitation water jet net-cleaning device according to claim 1, characterized in that, The cage frame (1) is further provided with an elastic seat, a rotary joint (11) is installed on the elastic seat, the cleaning disc (401) is fixed to the inner tube of the rotary joint (11), and the plurality of high-pressure nozzles (402) and the inner tube of the rotary joint (11) are connected through pipelines.

6. The ship-mounted cavitation water jet cleaning device for fishnet pens according to claim 5, characterized in that, The elastic seat comprises a fixed shaft (8) fixed to the rotary joint (11), the upper end of the fixed shaft (8) extends outwardly through the cage frame (1), and the extending end of the fixed shaft (8) is provided with a limiting disc (9); the fixed shaft (8) is further provided with a compression spring (10) abutting between the rotary joint (11) and the inner wall of the cage frame (1).

7. The ship-mounted cavitation water jet cleaning device for fishnet pens according to claim 1, characterized in that, A high-pressure water pump (12) is further provided, and the outlet ends of the high-pressure water pump (12) are connected with the rotary joints (11) on the plurality of cleaning discs (401) respectively.

8. The on-board cavitation water jet net-cleaning device according to any of claims 1 to 7, characterized in that, The cage frame (1) is further provided with a guide plate (6) at the inlet end, and the end of the guide plate (6) away from the cage frame (1) is inclined outwardly.

9. The ship-based cavitation water jet net-cleaning device according to claim 8, characterized in that, The inclination angle of the guide plate (6) is adjustable.

10. The on-board cavitation water jet net-cleaning device according to any one of claims 1 to 7, characterized in that, The cage frame (1) comprises an upper frame (101) and a lower frame (102), and the upper frame (101) and the lower frame (102) are detachably connected.

11. The ship-based cavitating water jet net pen cleaning apparatus of claim 10, wherein, The outer wall of the lower frame (102) is further provided with a suspension structure which can be hung on the ship side.

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