A seaweed cultivation vessel and its operation method

Abstract

This invention relates to a seaweed cultivation vessel and its operating method. The vessel includes a hull, with first railings along its length on both sides. A working area is located in the middle of the hull, between the first railings on both sides. A support structure is provided along the width of the hull to support ropes, with the main ropes confined within the first railings on both sides. A spraying system is also included, located within the working area. The spraying system includes a chemical tank, a spray pump, spray pipes, and nozzles. The chemical tank holds chemicals for eliminating unwanted algae. The spray pump is connected to one end of the spray pipes to draw chemicals from the chemical tank into the spray pipes. Multiple sets of nozzles are connected to the spray pipes, and the nozzles face the support structure. This invention also discloses the operating method for the aforementioned vessel. This invention can meet the practical needs of large-scale, mechanized seaweed cultivation operations.

Description

Technical Field

[0001] This invention relates to the field of large-scale economic algae cultivation, and more particularly to a seaweed cultivation vessel and its operation method. Background Technology

[0002] Algae farming, as an important component of marine aquaculture, mainly involves the large-scale production of macroalgae such as kelp and laver. During algae farming, especially in the early stages of seedling growth, other algae such as *Ulva prolifera* and *Plasma gondii* easily attach to the surface of the algae and the farming ropes. The attachment of these other algae not only competes with the farmed algae for nutrients and growth space but can also affect the algae's photosynthesis, potentially leading to slow seedling growth or even death, thus impacting yield and economic benefits.

[0003] Current methods for treating unwanted algae in algae cultivation mainly rely on manual cleaning or chemical spraying in small-scale aquaculture areas. Manual cleaning is labor-intensive and inefficient, making it unsuitable for large-scale aquaculture. Directly spraying chemicals into the water is only suitable for small-scale environments due to the easy diffusion and dilution of the chemicals. In large-scale marine aquaculture environments, it is difficult to accurately remove unwanted algae attached to the algae surface, resulting in inconsistent treatment effects and significant environmental impact due to large chemical usage.

[0004] In recent years, although some spraying vessels or management equipment have emerged for aquaculture, these devices typically target the aquaculture water body, focusing on spraying the aquatic environment and failing to specifically design for the characteristics of algae and attached algae in the aquaculture process. Furthermore, some existing aquaculture equipment is primarily used for harvesting and buoyancy adjustments, often completed underwater, which is insufficient to meet the needs for precise and controlled treatment of algae cultivation units. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a seaweed farming vessel and its operation method, thereby solving the above-mentioned technical problem.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This invention provides a seaweed cultivation vessel. Seaweed is cultivated on the water by being pulled by ropes. Each rope includes two main ropes and multiple seedling ropes vertically positioned between the two main ropes. The seaweed is cultivated on the seedling ropes. The vessel includes a hull, with first enclosures along the length of the hull on both sides. A working area is located in the middle of the hull, between the two first enclosures. A support structure is located in the width direction of the hull, between the two first enclosures, to support the ropes. The two sides of the main ropes are confined within the first enclosures. The vessel also includes a spray system located within the working area. The spray system includes a chemical tank, a spray pump, spray pipes, and nozzles. The chemical tank holds chemicals to kill unwanted algae. The spray pump is connected to one end of the spray pipes to draw chemicals from the chemical tank into the spray pipes. Multiple sets of nozzles are connected to the spray pipes, and the nozzles face the support structure.

[0008] A preferred embodiment of the present invention is that the supporting structure includes multiple crossbeams, which are spaced apart along the length of the hull, and both ends of the crossbeams are fixedly connected to the first railings on both sides; the first railing includes multiple vertical bars and connecting handrails connected above the vertical bars, and the height of the crossbeams is lower than the height of the vertical bars.

[0009] A preferred embodiment of the present invention is that a second fence is provided outside the first fence, and a personnel rest area is formed between the second fence and the first fence.

[0010] A preferred embodiment of the present invention is that the spray pipe includes a main spray pipe and a plurality of branch spray pipes. One end of the main spray pipe is connected to a spray pump, and the other end is connected to the branch spray pipe. The plurality of branch spray pipes are arranged above the liquid tank, and each branch spray pipe is arranged along the width direction of the hull. The nozzles are evenly arranged on the branch spray pipes, and the nozzles are atomizing nozzles.

[0011] A preferred embodiment of the present invention further includes a water replenishment system and a pesticide replenishment system. The water replenishment system includes a water replenishment pump and a water replenishment pipe. One end of the water replenishment pipe is located outside the hull and extends into the water below the hull. The other end of the water replenishment pipe is located in the pesticide solution tank. The water replenishment pump is used to pump water from below the hull into the pesticide solution tank. The pesticide replenishment system includes a raw pesticide tank, a pesticide replenishment pump, and a pesticide replenishment pipe. The raw pesticide tank is located outside the pesticide solution tank and is used to hold the pesticide for weed control. One end of the pesticide replenishment pipe is connected to the raw pesticide tank, and the other end is connected to the pesticide solution tank. The pesticide replenishment pump is used to pump the pesticide from the raw pesticide tank into the pesticide solution tank.

[0012] A preferred embodiment of the present invention further includes a control box, which is located outside the liquid tank and is connected to the spray pump, the water replenishment pump, and the medicine replenishment pump.

[0013] A preferred embodiment of the present invention further includes a drug concentration sensor and a water pusher. The drug concentration sensor is immersed in the drug pool and is used to detect the drug concentration. The water pusher is located at the bottom of the drug pool and is used to push the drug to flow in the drug pool. The drug concentration sensor and the water pusher are signal connected to the control box.

[0014] A preferred embodiment of the present invention is that the working area is further provided with an algae harvesting device, the harvesting device including a limiting bracket, a limiting roller, and a brush roller peeling machine. The limiting bracket is fixed to the inside of the first fence, the limiting roller is disposed below the limiting bracket, and the brush roller peeling machine is arranged along the width direction of the hull. The brush roller on the brush roller peeling machine is located below the limiting roller, so that the main rope passes between the limiting roller and the brush roller, and the brush roller rotates to peel the algae off the seedling rope.

[0015] A method for operating a seaweed cultivation vessel, using any of the above-described seaweed cultivation vessels, includes the following steps: S1, navigating the vessel into the seaweed cultivation area, moving the vessel along the extension direction of the main rope; S2, during the movement of the vessel, guiding the ropes originally submerged in water to above the support structure of the vessel, so that a portion of the seedling ropes are lifted by the main rope and enter the support structure above the hull, and into the operating area, while the vessel temporarily stops moving; S3, activating the spray system, the nozzles spraying the chemical solution from the chemical tank onto the seedling ropes to eliminate unwanted algae; S4, after spraying a portion of the seedling ropes, the vessel remains stationary for a preset time, then continues moving, moving the sprayed seedling ropes towards the stern into the water, repeating steps S2 to S4 to continue eliminating unwanted algae on subsequent seedling ropes, thereby achieving continuous algae elimination operation on the entire seaweed cultivation ropes.

[0016] A method for operating a seaweed cultivation vessel, comprising a seaweed cultivation vessel including an algae harvesting device, includes the following steps: A1. Sailing the vessel into the seaweed cultivation area, causing the vessel to move along the extension direction of the main rope; A2. During the movement of the vessel, guiding the rope, which was originally submerged in water, to above the support structure of the vessel, so that a portion of the seedling rope is lifted by the traction of the main rope and enters above the support structure of the vessel, and then into the operating area, so that the… The main rope passes between the limiting roller and the brush roller, and the workboat temporarily stops moving; A3, the brush roller peeling machine is turned on, so that the brush roller rotates to peel off the algae from the seedling rope, and the algae harvesting operation is carried out; A4, after completing the algae peeling treatment of some of the seedling ropes, the boat continues to move, so that the peeled seedling ropes move towards the stern and enter the water, and steps A2 to A4 are repeated to continue the algae harvesting operation on the subsequent seedling ropes, thereby realizing the continuous harvesting operation of the entire algae cultivation rope.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) This invention, without affecting normal aquaculture, sequentially completes the removal and harvesting of miscellaneous algae in multiple algae cultivation units to meet the actual needs of large-scale, mechanized algae cultivation operations. By guiding the algae cultivation units to the operating area on the hull, the algae are sprayed in a controlled state away from the water, avoiding the problem of chemical diffusion and dilution in the water, thereby improving the efficiency and consistency of miscellaneous algae removal. Stable bearing and precise spraying of algae cultivation units are achieved.

[0019] (2) By setting up a support structure in the working area, the algae are restricted and supported, so that they maintain a stable spatial posture during the movement of the working vessel; at the same time, the spraying system is arranged relative to the guide structure so that the spraying range covers the algae located in the guide structure, ensuring that the spraying treatment can act on the algae themselves.

[0020] (3) The use of mechanized operations to replace manual cleaning of algae significantly reduces the intensity of manual labor; at the same time, the outer side of the hull is equipped with guardrails and a reserved area for personnel to stay, which facilitates the operation of the spraying process and assists in the operation, thus improving the safety and controllability of the operation process.

[0021] (4) By setting up an algae harvesting structure on the work vessel, the work vessel can complete the harvesting and processing of multiple algae cultivation units at one time, thus meeting the further needs of algae cultivation. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of the spraying system and the first fence of a seaweed farming vessel provided in Embodiments 1-7 of the present invention within the working area;

[0023] Figure 2 This is a schematic diagram of the overall structure of the spraying system of a seaweed farming vessel provided in Embodiments 1-7 of the present invention;

[0024] Figure 3 This is a schematic diagram illustrating the use of a seaweed farming vessel during spraying operations, provided in Embodiments 1-7 of the present invention.

[0025] Figure 4 yes Figure 3 Enlarged diagram of A in the middle;

[0026] Figure 5 This is a schematic diagram of the overall structure of the second and first fences of a seaweed farming vessel provided in Embodiment 3 of the present invention.

[0027] Figure 6 This is a partial structural diagram of a seaweed farming vessel including a harvesting device, provided in Embodiment 8 of the present invention.

[0028] Figure 7 This is a partial structural diagram of a seaweed harvesting device provided in Embodiment 8 of the present invention.

[0029] In the picture:

[0030] 1. Algae; 2. Main rope; 3. Seedling rope; 4. Hull; 5. First fence; 6. Working area; 7. Chemical solution tank; 8. Spray pump; 9. Spray pipe; 10. Spray head; 11. Crossbeam; 12. Vertical pole; 13. Connecting handrail; 14. Second fence; 15. Main spray pipe; 16. Spray branch pipe; 17. Water replenishment pump; 18. Water replenishment pipeline; 19. Raw chemical tank; 20. Chemical replenishment pump; 21. Chemical replenishment pipeline; 22. Control box; 23. Chemical solution concentration sensor; 24. Water pusher; 25. Limiting bracket; 26. Limiting roller; 27. Brush roller peeling machine. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-7 The technical solution of the present invention will be further illustrated through specific embodiments.

[0032] Example 1

[0033] like Figure 1-4As shown, this application provides a seaweed cultivation vessel designed for precise handling of seaweed 1 cultured on water. The vessel travels on the water and uses its onboard equipment to handle the seaweed 1 on cultivation ropes. The seaweed 1 is typically tractioned by ropes, which consist of two main ropes 2 and multiple seedling ropes 3 vertically positioned between the main ropes 2. The seaweed 1 attaches and grows on the seedling ropes 3.

[0034] The work vessel comprises a hull 4, which serves as the carrier of the entire work platform. The hull 4 can take various forms, including monohull, catamaran, or barge structures, the choice depending on the required stability, load capacity, and characteristics of the operating waters. First railings 5 ​​are installed along the length of both sides of the hull 4. The first railings 5 ​​can consist of simple railings, fixed to the edge of the hull 4's deck by welding or bolting, forming an open boundary.

[0035] The central area of ​​hull 4 is designated as the operating area 6, which is located between the first fencing 5 on both sides. The operating area 6 is the core space for algae 1 treatment operations, and its size and layout can be adjusted according to operational needs.

[0036] A support structure is provided along the width of the hull 4, located between the first enclosures 5 on both sides. The support structure supports the aquaculture ropes being lifted from the water. The support structure can consist of simple crossbars or frames, fixed to the deck of the hull 4 by brackets. The main rope 2 is confined on both sides inside the first enclosures 5 to ensure the rope remains on its predetermined path during operation.

[0037] Work area 6 also includes a spray system, which is the core component for algae control. This system comprises a chemical solution tank 7, a spray pump 8, spray pipes 9, and nozzles 10. The chemical solution tank 7 is a separate storage tank made of plastic or stainless steel, placed in a suitable location within work area 6. The spray pump 8, which can be a centrifugal pump or a plunger pump, is connected to the chemical solution tank 7 via pipes and is responsible for drawing the chemical solution from the tank.

[0038] The chemical solution tank 7 is specifically designed to hold the chemical solution used to eliminate unwanted algae. The chemical solution can be a biological agent, a chemical agent, or a physical treatment solution, the choice of which depends on the type of unwanted algae and the tolerance of the cultured algae 1.

[0039] A spray pump 8 is connected to one end of a spray pipe 9. Its function is to draw the chemical solution from the chemical tank 7 and transport it to the spray pipe 9. The spray pipe 9 can be one or more pipes made of PVC, PE or metal materials, and it is arranged above the work area 6.

[0040] Multiple sets of nozzles 10 are provided and connected to the spray pipe 9. These nozzles 10 can be direct nozzles 10 or fan-shaped nozzles 10, and their number and spacing can be adjusted according to the spray coverage and uniformity requirements. The nozzles 10 are oriented towards the supporting structure to ensure that the medicine can be sprayed directly onto the supported aquaculture ropes, thereby achieving localized and precise removal of algae attached to the seedling ropes 3.

[0041] By setting up the hull 4, the first enclosure 5, the working area 6, and the supporting structure, the ropes used for underwater aquaculture can be lifted to the working area 6 above water for treatment. Combined with the spray system installed in the working area 6, including a chemical tank 7, a spray pump 8, spray pipes 9, and nozzles 10 facing the supporting structure, localized and precise spraying of chemicals is achieved to treat the algae attached to the aquaculture ropes. This solution effectively avoids the diffusion and dilution of the chemicals in the water, improves the utilization rate of the chemicals and the algae-killing effect, while reducing the impact on the aquatic environment, and solves the problems of low efficiency and poor precision in traditional algae treatment methods.

[0042] Example 2

[0043] like Figure 1-4 As shown, this embodiment discloses a seaweed farming vessel, which differs from Embodiment 1 in that: the support structure further includes multiple crossbeams 11, which are spaced apart along the length of the hull 4, and both ends of the crossbeams 11 are fixedly connected to the first railings 5 ​​on both sides. The first railings 5 ​​include multiple vertical bars 12 and connecting handrails 13 connected above the vertical bars 12, and the height of the crossbeams 11 is lower than the height of the vertical bars 12.

[0044] The crossbeam 11 is the main component supporting the algae cultivation ropes 1. It is typically made of high-strength, corrosion-resistant materials, such as stainless steel or corrosion-resistant alloys, to adapt to the aquatic operating environment. The cross-sectional shape of the crossbeam 11 can be selected according to load-bearing requirements and structural strength to ensure sufficient rigidity and strength when supporting the ropes and prevent deformation. The crossbeams 11 are set at certain intervals along the length of the hull 4, allowing the ropes to be supported at multiple points, distributing the load and avoiding excessive local stress. Simultaneously, it provides necessary space for rope introduction, movement, and spraying operations, facilitating observation and adjustment by operators. The two ends of the crossbeam 11 are fixedly connected to the first railings 5 ​​on both sides of the hull 4 through welding, bolting, or riveting, ensuring that the supporting structure forms a stable whole with the hull 4, enhancing the overall structural stability of the work vessel. Through the secure connection with the first railings 5, the crossbeam 11 can effectively transfer and distribute the load of the ropes, preventing the supporting structure from swaying or shifting during operation. The first fence 5 is a protective structure on both sides of the hull 4. Its basic components include multiple vertically arranged poles 12 and connecting handrails 13 connected to these poles 12. The poles 12 provide vertical support for the fence, while the connecting handrails 13 enhance the overall rigidity of the fence and provide grip points for the crew, ensuring their safety within the work area 6. The top height of the crossbeam 11 is designed to be lower than the height of the poles 12 of the first fence 5. This means that when ropes are supported on the crossbeam 11, their overall position will be lower than the top edge of the fence, helping to stably confine the ropes within the work area 6 and preventing them from slipping out accidentally during hull 4 swaying or work. At the same time, it also ensures that the connecting handrails 13 can serve as a safety guarantee for the crew without being obstructed by the crossbeam 11 or the ropes on it, improving the safety and convenience of the operation.

[0045] Through the above technical solution, the support structure is concretized into multiple crossbeams 11 spaced along the length of the hull 4, and the two ends of these crossbeams 11 are fixedly connected to the first railings 5 ​​on both sides, thereby significantly enhancing the overall rigidity and stability of the support structure. This stable connection method ensures that during water operations, even if the hull 4 is affected by external factors such as waves, the ropes can be reliably supported, avoiding rope swaying or detachment caused by an unstable support structure, thus ensuring the continuity and efficiency of the operation. At the same time, by designing the height of the crossbeams 11 to be lower than the height of the vertical bars 12 of the first railing 5, the ropes are effectively confined inside the railing, preventing them from accidentally slipping out, and providing safety for the crew's activities within the work area 6, greatly improving the safety and ease of operation.

[0046] Example 3

[0047] like Figure 5As shown, this embodiment discloses a seaweed farming vessel, which differs from Embodiment 1 in that a second fence 14 is also provided outside the first fence 5, and a personnel accommodation area is formed between the second fence 14 and the first fence 5.

[0048] The second fence 14 is another protective structure installed outside the first fence 5. The second fence 14 can be made of corrosion-resistant metal materials (such as stainless steel or aluminum alloy) or high-strength composite materials. Its structural form can be railings, handrails, protective walls, or grids, and it can be firmly fixed to the deck of the ship 4 or the supporting structure of the first fence 5 by welding, bolting, or other methods. Its height and strength should be sufficient to effectively prevent accidental falls.

[0049] The personnel accommodation area refers to the space formed between the first fence 5 and the second fence 14, providing a safe space for shipboard personnel to stand, walk, or perform operations. The width of the area should be designed according to actual needs to ensure safe passage and accommodation for personnel, and may be equipped with anti-slip decking and drainage holes to ensure the area is dry and safe.

[0050] By employing the aforementioned technical solution, a second fence 14 is added outside the first fence 5, thereby creating an independent and safe personnel accommodation area between the first fence 5 and the second fence 14. This area effectively isolates the ship's personnel from the work area 6 where algae 1 is being processed, preventing the risk of accidental falls or contact with pesticides sprayed by the sprinkler system that may occur when personnel are inspecting, maintaining, or assisting in operations. Simultaneously, the personnel accommodation area provides ample and safe space for personnel to move around, enabling them to more conveniently and safely conduct external inspections of the hull 4, maintain equipment, or monitor the operation process. This significantly improves the overall safety and operational convenience of the work vessel, ensuring the continuity of operations and the safety of personnel.

[0051] Example 4

[0052] like Figure 1-4 As shown, this embodiment discloses a seaweed farming vessel, which differs from Embodiment 1 in that: the spray pipe 9 includes a main spray pipe 15 and multiple spray branch pipes 16. One end of the main spray pipe 15 is connected to the spray pump 8, and the other end is connected to the spray branch pipe 16. Multiple spray branch pipes 16 are arranged above the liquid tank 7, and each spray branch pipe 16 is arranged along the width direction of the hull 4. The nozzles 10 are evenly arranged on the spray branch pipes 16, and the nozzles 10 are atomizing nozzles 10.

[0053] The main spray pipe 15 serves as the main channel for pesticide delivery. One end of it is connected to the spray pump 8, responsible for drawing pesticide from the pesticide tank 7 and delivering it to the spray system. The other end of the main spray pipe 15 is connected to multiple spray branch pipes 16 to distribute the pesticide. This main and branch pipe structure design allows the pesticide to be effectively distributed from a single inlet to multiple spray paths, laying the foundation for subsequent fine spraying.

[0054] Multiple spray branch pipes 16 are arranged above the chemical solution tank 7, allowing the main part of the spraying system—the pipeline network for chemical distribution and spraying—to be centrally located at a specific height in the working area 6 of the hull 4. This facilitates the delivery of chemical solution from the chemical solution tank 7 to this location via the spray pump 8, where it is precisely distributed. Simultaneously, each spray branch pipe 16 is positioned along the width of the hull 4, ensuring that the spraying system can laterally cover the entire working area 6, specifically the area of ​​the seedling ropes 3 above the supporting structure that requires algae control. This width-direction arrangement ensures that the chemical solution can evenly cover all the seedling ropes 3 between the first fencing 5 on both sides of the hull 4.

[0055] The nozzles 10 are evenly arranged on the spray branch pipes 16, maintaining a certain spacing between them to ensure continuous and uniform spraying of the pesticide within the coverage area of ​​the branch pipes. This avoids blind spots or overlapping areas, ensuring complete coverage of the seedling ropes 3. Furthermore, the nozzles 10 are atomizing nozzles, capable of breaking down the pesticide into extremely fine droplets. These tiny droplets have a larger surface area, significantly increasing the contact area between the pesticide and algae on the seedling ropes 3, enhancing the pesticide's adhesion and penetration, thereby improving the efficiency and effectiveness of algae removal. Atomized spraying also helps reduce pesticide runoff and waste, allowing the pesticide to act more effectively on the target.

[0056] Through the above technical solution, the spray pipe 9 is refined into a main spray pipe 15 and multiple spray branch pipes 16 arranged along the width direction of the hull 4, and the atomizing nozzles 10 are evenly arranged on the spray branch pipes 16, which can ensure that the chemical solution achieves uniform and comprehensive coverage throughout the entire operation area 6. In particular, the use of atomizing nozzles 10 can decompose the chemical solution into fine mist droplets, significantly increasing the contact area between the chemical solution and the surface of algae 1, improving the adhesion and penetration of the chemical solution, thereby effectively improving the efficiency and effect of eliminating miscellaneous algae, while reducing the waste of chemical solution, avoiding insufficient or excessive treatment in some areas due to uneven spraying, and thus improving the accuracy and economy of algae control operations on seaweed farming vessels.

[0057] Example 5

[0058] like Figure 1-4As shown, this embodiment discloses a seaweed cultivation vessel, which differs from Embodiment 1 in that it also includes a water replenishment system and a medicine replenishment system. The water replenishment system is used to replenish water to the medicine tank 7 to maintain the total amount or dilution concentration of the medicine in the tank 7. The water replenishment system can consist of a water replenishment pump 17, a water replenishment pipe 18, and corresponding control valves. The water replenishment pump 17 can be a centrifugal pump, a self-priming pump, or a submersible pump, etc., with the appropriate pump type selected according to the structure of the hull 4 and the water depth. The water replenishment pipe 18 is usually made of corrosion-resistant plastic or metal, and its diameter should be sufficient to meet the required water replenishment flow rate. One end of the water replenishment pipe 18 extends into the water below the hull 4 and is usually equipped with a filter screen to prevent debris from entering the pipe; the other end is connected to the inside of the medicine tank 7 to ensure that the replenished water can directly enter the medicine tank 7. The water replenishment pump 17 is the power component of the water replenishment system, responsible for pumping water from below the hull 4 and transporting it to the medicine tank 7. The flow rate and head of the water replenishment pump 17 should be matched according to factors such as the volume of the chemical tank 7, the required water replenishment rate, and the water depth below the hull 4. The water replenishment pump 17 is usually driven by an electric motor and can be integrated into the power system of the hull 4.

[0059] Meanwhile, the seaweed cultivation vessel also includes a dosing system for replenishing concentrated chemicals into the chemical solution tank 7 to maintain the effective concentration of chemicals in the tank. The dosing system includes a raw chemical tank 19, a dosing pump 20, and a dosing pipeline 21. The raw chemical tank 19, located outside the chemical solution tank 7, stores a high concentration of chemicals for eliminating unwanted algae. The raw chemical tank 19 is typically made of corrosion-resistant materials and usually includes a level sensor and a dosing port. The dosing pump 20 is the power component of the dosing system, responsible for precisely delivering the concentrated chemicals from the raw chemical tank 19 to the chemical solution tank 7. The dosing pump 20 is typically a metering pump, plunger pump, diaphragm pump, or peristaltic pump, which enables precise flow control to ensure that the chemicals are replenished according to a preset ratio or concentration. The dosing pipeline 21 is used to transport the concentrated chemicals, with one end connected to the raw chemical tank 19 and the other end connected to the chemical solution tank 7. The dosing pipeline 21 is typically a small-diameter, corrosion-resistant flexible or rigid pipe. To prevent backflow or leakage of the reagent, a check valve can be installed on the pipeline.

[0060] The aforementioned water replenishment and chemical replenishment systems solve the problem of frequent manual replenishment of the chemical solution in the chemical solution tank 7 after its depletion. The water replenishment system automatically draws water from below the hull 4 to replenish the chemical solution tank 7, maintaining its level and preventing the spraying system from ceasing operation due to water shortage. Simultaneously, the chemical replenishment system precisely delivers high-concentration chemicals from the original chemical tank 19 to the chemical solution tank 7, ensuring that the chemical concentration in the tank 7 remains within an effective range. This enables the seaweed cultivation vessel to achieve automatic chemical replenishment and concentration adjustment, significantly extending the duration of each operation, reducing manual intervention, and improving the continuity and efficiency of operations. This ensures that continuous algae removal operations on the algae cultivation ropes 1 can be carried out stably and efficiently.

[0061] Example 6

[0062] like Figure 1-4 As shown, this embodiment discloses a seaweed cultivation vessel, which differs from Embodiment 5 in that it also includes a control box 22 (as shown in the figure). Figure 2 As shown in the figure, the control box 22 is located outside the chemical solution tank 7, and the control box 22 is connected to the spray pump 8, the water replenishment pump 17 and the chemical replenishment pump 20.

[0063] The control box 22 typically refers to an enclosed enclosure housing electrical components, control circuits, and an operating interface. Internally, it can integrate electrical components such as programmable logic controllers (PLCs), microcontrollers, relays, contactors, and circuit breakers. It can also be equipped with a human-machine interface (HMI), a touchscreen, or button indicators to achieve centralized control and status display of external devices. The control box 22 is designed with the characteristics of the underwater working environment in mind, employing waterproof, dustproof, and corrosion-resistant measures to ensure reliable operation in harsh conditions. Positioning the control box 22 outside the chemical solution tank 7 aims to prevent the precision electronic components inside the control box 22 from directly contacting the potentially corrosive chemicals in the tank 7, thereby effectively protecting the equipment and extending its service life. Simultaneously, this location facilitates observation, operation, and maintenance of the control box 22 by operators, ensuring both convenience and safety in operations. The control connection between the control box 22 and the spray pump 8, the water replenishment pump 17, and the chemical replenishment pump 20 refers to the connection established between the control box 22 and these pumps through electrical wiring or a communication bus to achieve control functions such as starting and stopping the pumps, selecting operating modes, and adjusting flow rates or speeds. The control box 22 can send start / stop commands to each pump, or adjust the pump operating parameters according to preset programs or sensor feedback, thereby achieving precise spraying of chemicals, accurate control of water replenishment, and on-demand replenishment of chemicals.

[0064] Through the aforementioned technical solution, a control box 22 is installed and connected to the spray pump 8, the water replenishment pump 17, and the chemical replenishment pump 20, achieving centralized and automated management of the entire chemical treatment and spraying process. The control box 22 can precisely coordinate the operation of each pump according to preset operating modes or real-time monitoring data, ensuring that the chemical concentration in the chemical solution tank 7 is always maintained within the optimal range, avoiding waste or poor treatment results caused by improper manual operation. Furthermore, this centralized control method significantly improves operational efficiency and precision, reduces the labor intensity of operators, and enhances the operational stability and reliability of the entire system, thereby effectively improving the algae control effect of the seaweed farming vessel.

[0065] Example 7

[0066] like Figure 1-4As shown, this embodiment discloses a seaweed cultivation vessel, which differs from embodiments 1-6 in that it also includes a drug concentration sensor 23 and a water propeller 24 (such as...). Figure 1 (As shown). Among them, the drug concentration sensor 23 is immersed in the drug pool 7 and is used to detect the drug concentration; the water pusher 24 is located at the bottom of the drug pool 7 and is used to push the drug to flow in the drug pool 7; the drug concentration sensor 23 and the water pusher 24 are connected to the control box 22 for signal connection.

[0067] The pesticide concentration sensor 23 is a device used to measure the concentration of pesticide solution in the pesticide tank 7 in real time. The sensor continuously monitors the actual concentration of the pesticide solution in the tank 7 and transmits the detected concentration data to the control box 22 in real time. This ensures that the pesticide concentration is maintained within an effective and safe range, providing accurate data for subsequent pesticide preparation and spraying. The pesticide concentration sensor 23 can be implemented using various technologies. It can be a conductivity-based sensor, indirectly reflecting the ion concentration by measuring the conductivity of the pesticide solution; or it can be an optical sensor, such as a colorimeter or turbidimeter, determining the concentration by detecting the absorption or scattering of light of a specific wavelength by the pesticide solution. Regardless of the form used, its core function is to provide accurate pesticide concentration feedback.

[0068] The water pusher 24 generates water flow within the chemical solution tank 7 to promote uniform mixing of the chemicals. In the chemical solution tank 7, especially after replenishment of water or chemicals, the chemicals may separate into layers or exhibit uneven concentrations in certain areas, and may even precipitate. The water pusher 24 effectively mixes the chemicals within the tank 7 by generating agitation or circulating water at the bottom, ensuring a uniform chemical concentration throughout the tank. The water pusher 24 can be a small submersible pump, a stirring paddle, or an aerator. The installation of the water pusher 24 ensures that the concentration data detected by the chemical concentration sensor 23 is representative, and also ensures a stable concentration of the chemicals sprayed by the sprinkler system.

[0069] The drug concentration sensor 23 and the water pusher 24 are connected to the control box 22, enabling automatic monitoring and control of the drug concentration. The drug concentration sensor 23 transmits the real-time detected concentration signal to the control box 22. The control box 22 analyzes and judges the received signal according to a preset drug concentration range or target value. When the detected concentration deviates from the preset value, the control box 22 can automatically issue commands according to preset control logic to start or stop the replenishment pump 20 to replenish the drug, or start or stop the water replenishment pump 17 to dilute the drug, thereby precisely adjusting the drug concentration. Simultaneously, the control box 22 can also control the operating mode of the water pusher 24, allowing it to start on a timer, run continuously, or dynamically start according to concentration changes, ensuring that the drug remains uniformly mixed at all times. This intelligent signal connection enables the entire drug management system to achieve closed-loop control, greatly improving the level of automation.

[0070] By introducing a drug concentration sensor 23 and a water pusher 24, and connecting them to the control box 22, this application enables real-time monitoring and automatic control of the drug concentration in the drug tank 7. The drug concentration sensor 23 continuously monitors the drug concentration and feeds the data back to the control box 22. When the drug concentration deviates from the preset range, the control box 22 can intelligently control the start and stop of the water replenishment pump 17 and the drug replenishment pump 20 based on the feedback information, thereby precisely adjusting the drug concentration to maintain it in optimal working condition. Simultaneously, the water pusher 24 effectively agitates the drug at the bottom of the drug tank 7, preventing drug sedimentation or stratification, ensuring uniform mixing, and resulting in a stable and consistent concentration of the sprayed drug. This not only significantly improves the efficiency and effectiveness of algae removal operations, avoiding waste of drugs or damage to the cultivated algae 1 due to uneven concentration or deviation from the preset value, but also reduces the burden of manual monitoring and adjustment, achieving intelligent and automated drug management, thereby improving the operational reliability and economic benefits of the entire seaweed cultivation vessel.

[0071] Example 8

[0072] This embodiment discloses a seaweed cultivation vessel, which differs from embodiments 1-7 in that: Figure 6 as well as Figure 7As shown, the work area 6 is also equipped with an algae harvesting device. The algae harvesting device is a mechanical device used to peel mature algae 1 from the seedling rope 3. Its main purpose is to achieve automated or semi-automated harvesting of algae 1, improve harvesting efficiency, and reduce labor costs. The device is usually integrated into the work area 6 of the work vessel so that the harvesting operation can be completed synchronously while the vessel is in motion. The harvesting device includes a limiting bracket 25, a limiting roller 26, and a brush roller peeling machine 27. The limiting bracket 25 is a structural component used to fix and support other parts of the harvesting device. It is usually made of high-strength, corrosion-resistant materials to adapt to the aquatic working environment. The limiting bracket 25 is fixed inside the first enclosure 5 to ensure the stable installation of the harvesting device on the hull 4 and to enable it to accurately position the harvesting components for effective contact with the seedling rope 3. The limiting roller 26 is a rotating component used to guide and position the main rope 2. It is usually made of wear-resistant, low-friction material. The limiting roller 26 is located below the limiting bracket 25. Its function is to ensure that the main rope 2 maintains a stable path and tension when passing through the harvesting device, preventing the main rope 2 from deviating from the preset track, thereby ensuring the smooth progress of subsequent stripping operations. The brush roller stripper 27 is the core component for stripping algae 1. The stripper usually consists of one or more rotatable brush rollers, which are densely covered with flexible bristles or scrapers. The brush roller stripper 27 is arranged along the width of the hull 4. Its design aims to apply mechanical force to the algae 1 on the seedling rope 3 through the rotational movement of the brush rollers, causing it to detach from the seedling rope 3. The brush roller is the main working component of the brush roller stripper 27. Its surface is usually covered with wear-resistant, corrosion-resistant bristles or scrapers that have a good stripping effect on algae 1. The brush roller is located below the limiting roller 26, forming a narrow channel together with the limiting roller 26 through which the main rope 2 and the seedling rope 3 on it will pass. The rotation direction and speed of the brush roller can be adjusted according to the type of algae 1, its adhesion strength, and harvesting efficiency requirements. The main rope 2 passes between the limiting roller 26 and the brush roller. This structural design ensures that the main rope 2 is precisely guided by the limiting roller 26 when passing through the harvesting device, and that the seedling rope 3 on it makes full contact with the brush roller below. The gap between the limiting roller 26 and the brush roller is precisely controlled to allow the seedling rope 3 to pass smoothly, while ensuring that the brush roller can effectively scrape or brush off the algae 1 on the seedling rope 3. When the brush roller rotates, the bristles or scrapers on its surface rub, impact, or scrape against the algae 1 on the seedling rope 3, thereby peeling the algae 1 attached to the seedling rope 3 off the seedling rope 3, thus achieving the harvesting of algae 1.

[0073] By installing an algae harvesting device within the operating area 6, this application achieves automated and continuous harvesting of mature algae 1. When the vessel travels along the main rope 2, the rope, originally submerged in water, is guided to the operating area 6. Under the precise guidance of the limiting roller 26, the main rope 2 makes effective contact with the brush roller below. The brush roller on the brush roller peeler 27 mechanically peels the algae 1 from the seedling rope 3 through rotational motion, thus efficiently separating the algae 1 from the seedling rope 3. This harvesting method avoids the low efficiency and high labor intensity of traditional manual harvesting, significantly improving the efficiency and continuity of algae 1 harvesting, making the later management of algae 1 cultivation more convenient and economical. Simultaneously, the harvesting device is integrated with the hull 4, enabling synchronous harvesting operations and vessel movement, further optimizing the overall function of the seaweed cultivation vessel. This allows it to not only remove unwanted algae but also efficiently harvest algae 1, enhancing the vessel's multifunctionality and practicality.

[0074] Example 9

[0075] This application further proposes a method for operating a seaweed cultivation vessel, the method comprising the following steps:

[0076] First, the work vessel is steered into the algae cultivation area 1 and moves along the extension direction of the main rope 2. This step aims to position the work vessel within the algae cultivation area and ensure it is parallel to the main rope 2, laying the foundation for subsequent continuous operations. The work vessel's speed can be adjusted according to actual operational needs, water flow conditions, and algae density to ensure operational stability and efficiency.

[0077] Secondly, during the movement of the work vessel, the ropes originally submerged in the water are guided to the support structure of the work vessel. This allows a portion of the seedling rope 3 to be lifted by the main rope 2 and enter the support structure of the hull 4, then into the work area 6. The work vessel temporarily stops moving. This step is crucial for continuous underwater rope handling. The guidance and lifting of the ropes can be achieved using guide devices (guide rollers, pulley systems, or robotic arms) located at the front or side of the hull 4. These devices can smoothly lift the main rope 2 and seedling rope 3 from the water to the support structure of the work vessel. The support structure provides a stable platform for the seedling rope 3, exposing it within the work area 6, preparing it for subsequent spraying operations. The temporary cessation of the work vessel's movement ensures that the seedling rope 3 remains relatively stationary during spraying, guaranteeing the uniformity and thoroughness of the pesticide spraying and preventing poor spraying results due to movement or swaying of the hull 4.

[0078] Next, the sprinkler system is activated, and the nozzles 10 spray the solution from the chemical tank 7 onto the seedling rope 3 to eliminate algae. Once the seedling rope 3 is stably raised to the working area 6 and rests above the supporting structure, the sprinkler system is activated. The sprinkler pump 8 draws the pre-prepared algae-eliminating solution from the chemical tank 7 and delivers it to the sprinkler pipe 9. Through multiple nozzles 10 connected to the sprinkler pipe 9, the solution is evenly sprayed onto the surface of the seedling rope 3 in a mist or fine stream. The number, arrangement, and spraying angle of the nozzles 10 can be optimized according to the width of the seedling rope 3 and the spray coverage area to ensure that the solution can fully contact and cover the algae on the seedling rope 3, thereby achieving the purpose of efficiently eliminating algae.

[0079] Finally, after spraying a portion of the seedling ropes 3, the workboat pauses for a preset time before continuing its journey, moving the sprayed seedling ropes 3 towards the stern into the water. Steps S2 to S4 are repeated to continue the algae removal operation on subsequent seedling ropes 3, thus achieving continuous algae removal across the entire algae cultivation ropes 1. After spraying, the workboat pauses for a preset time, depending on factors such as the agent's action time and ambient temperature, to ensure sufficient time for the agent to take effect on the algae. After the pause time, the workboat restarts and moves along the extension direction of the main rope 2. As the workboat moves, the treated seedling ropes 3 gradually move from above the support structure towards the stern, eventually re-immersing themselves in the water. Simultaneously, new, untreated seedling ropes 3 are guided from the bow to above the support structure, entering work area 6 to await the next round of spraying. Through this cyclical, intermittent movement and stopping operation mode, automated and continuous algae removal is achieved on long-distance algae cultivation ropes 1, greatly improving operational efficiency.

[0080] Through the above technical solution, this application provides a highly efficient and continuous method for eliminating algae 1 and other algae in aquatic aquaculture. The method utilizes the movement and intermittent stopping of the work vessel, combined with rope guidance and a spraying system, to systematically guide the algae 1, originally dispersed in the water, into the work area 6 for treatment, realizing a transformation from traditional point-based or segmented treatment to continuous, assembly-line treatment. This not only significantly improves the efficiency and coverage of algae elimination, ensuring the uniformity and effectiveness of pesticide spraying, but also reduces the labor intensity of operators, minimizes manual intervention, and improves operational safety. The method, in close coordination with the hull 4, support structure, and spraying system of the algae cultivation work vessel, forms a complete and efficient algae elimination platform, providing a practical solution for large-scale aquatic algae 1 cultivation.

[0081] Example 10

[0082] This application further proposes a method for operating a seaweed cultivation vessel, the steps of which include:

[0083] First, the work vessel is steered into the designated algae cultivation area 1. During this process, the vessel's course is adjusted to align with the extension direction of the main rope 2 to facilitate subsequent rope guidance and harvesting operations. The work vessel's movement can be manually controlled by the crew or automatically controlled via a pre-set navigation system to ensure precise movement along the path of the main rope 2.

[0084] Next, as the work vessel moves, the ropes, initially submerged in water, are gradually guided to the top of the vessel's support structure. This guidance process can be achieved manually or with a robotic arm, ensuring the ropes are lifted smoothly from the water. When a portion of the seedling rope 3 is lifted by the traction of the main rope 2 and enters the support structure of the hull 4, and further into the working area 6, the main rope 2 is precisely guided to pass between the limiting roller 26 and the brush roller. The limiting roller 26 here serves to position and stabilize the main rope 2, ensuring it enters the working range of the brush roller peeling machine 27 in the correct posture. At this point, the work vessel temporarily stops moving, providing a stable operating platform for the subsequent algae 1 peeling operation.

[0085] Then, the brush roller peeling machine 27 is turned on. The brush roller begins to rotate under the action of the drive device, and its bristles contact the seedling rope 3 positioned by the limiting roller 26. Through mechanical friction and peeling action, the algae 1 attached to the seedling rope 3 is effectively peeled off. The rotation speed of the brush roller and the material of the bristles can be adjusted according to the type and density of the algae 1 and the material of the seedling rope 3 to achieve the best peeling effect while avoiding damage to the seedling rope 3. The peeled algae 1 can be collected in a pre-set container for further processing.

[0086] Once the current section of seedling rope 3 has completed the algae removal process, the work vessel resumes its journey. As the vessel continues forward, the stripped seedling rope 3 gradually moves towards the stern and is re-immersed in the water. Simultaneously, new, untreated seedling rope 3 is guided from the bow to the work area 6, allowing the above steps to be repeated. Through this continuous cycle of movement, guidance, stripping, and re-immersion, continuous harvesting of the entire algae cultivation rope 1 is achieved, significantly improving operational efficiency and automation.

[0087] Through the above-described method, this application provides an efficient and continuous solution for harvesting aquatic algae 1. The method, through the coordinated action of the workboat's movement and stopping, rope guidance, and the brush-roller peeler 27, achieves automated, assembly-line harvesting of the algae 1 cultivation ropes. Specifically, the workboat moves along the main rope 2, lifting the seedling ropes 3 to be harvested in sections to the work area 6. Precise guidance is achieved using the limiting roller 26, and the brush-roller peeler 27 efficiently peels off the algae 1. Subsequently, the workboat continues to move, re-entering the processed seedling ropes 3 into the water and introducing new seedling ropes 3 for processing. This avoids the heavy labor and low efficiency of traditional manual harvesting, significantly improving the continuity and overall efficiency of the harvesting operation, reducing labor costs, and ensuring the quality and uniformity of the harvested algae 1.

[0088] Working principle

[0089] In a large marine algae cultivation area, the cultivated algae 1 are tethered by ropes consisting of two main ropes 2 and multiple seedling ropes 3 vertically positioned between the two main ropes 2. The algae 1 is cultivated on the seedling ropes 3. When miscellaneous algae attached to the seedling ropes 3 need to be removed, a seaweed cultivation vessel enters the area.

[0090] The work vessel includes a hull 4. First railings 5 ​​are provided on both sides of the hull 4 along its length. A work area 6 is located in the middle of the hull 4, between the first railings 5 ​​on both sides. A support structure is provided in the width direction of the hull 4, located between the first railings 5 ​​on both sides, for supporting the ropes.

[0091] The work vessel travels along the extension direction of the main rope 2. During travel, the rope, originally submerged in water, is guided to the top of the work vessel's support structure. The two sides of the main rope 2 are confined within the first enclosure 5 to ensure the rope's stability within the work area 6. The support structure consists of multiple crossbeams 11, which are spaced apart along the length of the hull 4, and both ends of the crossbeams 11 are fixedly connected to the first enclosure 5 on both sides. The height of the crossbeams 11 is lower than the height of the vertical poles 12 of the first enclosure 5, allowing the seedling rope 3 to be effectively lifted and supported within the work area 6, while avoiding interference with the top of the enclosure. This method of lifting the rope to the work area 6 of the hull 4 for treatment, compared to the existing method of directly spraying chemicals into the water, enables precise targeting of algae, avoids the diffusion and dilution of chemicals in the water, thereby improving treatment effectiveness and reducing the amount of chemicals used.

[0092] When a portion of the seedling rope 3 is lifted by the main rope 2 and enters the support structure above the hull 4 and into the work area 6, the work vessel temporarily stops moving. At this time, the sprinkler system is activated. The sprinkler system is set up in the work area 6 and includes a chemical tank 7, a sprinkler pump 8, sprinkler pipes 9, and multiple sets of nozzles 10. The chemical tank 7 is used to hold the chemical solution for eliminating algae. The sprinkler pump 8 is connected to one end of the sprinkler pipe 9 to draw the chemical solution from the chemical tank 7 into the sprinkler pipe 9. The sprinkler pipe 9 includes a main sprinkler pipe 15 and multiple branch sprinkler pipes 16. One end of the main sprinkler pipe 15 is connected to the sprinkler pump 8, and the other end is connected to the branch sprinkler pipes 16. Multiple branch sprinkler pipes 16 are arranged above the chemical tank 7, and each branch sprinkler pipe 16 is set along the width direction of the hull 4. The nozzles 10 are evenly arranged on the branch sprinkler pipes 16, and the nozzles 10 are atomizing nozzles. These atomizing nozzles 10 are oriented towards the support structure, ensuring that the medicine is sprayed evenly onto the algae on the seedling rope 3 in a fine mist, thereby increasing the contact area and efficiency between the medicine and the algae.

[0093] To ensure the safety of workers, a second fence 14 is also set up outside the first fence 5. The area between the first fence 5 and the second fence 14 forms a personnel residence area, providing workers with a safe space for observation and operation.

[0094] During operation, to maintain the concentration and level of the pesticide solution in the pesticide tank 7, a water replenishment system and a pesticide replenishment system are also included. The water replenishment system includes a water replenishment pump 17 and a water replenishment pipe 18. One end of the water replenishment pipe 18 is located outside the hull 4 and extends into the water below the hull 4. The other end of the water replenishment pipe 18 is located inside the pesticide tank 7. The water replenishment pump 17 is used to pump water from below the hull 4 into the pesticide tank 7. The pesticide replenishment system includes a raw pesticide tank 19, a pesticide replenishment pump 20, and a pesticide replenishment pipe 21. The raw pesticide tank 19 is located outside the pesticide tank 7 and is used to hold the pesticide for weed control. One end of the pesticide replenishment pipe 21 is connected to the raw pesticide tank 19, and the other end is connected to the pesticide tank 7. The pesticide replenishment pump 20 is used to pump the pesticide from the raw pesticide tank 19 into the pesticide tank 7.

[0095] The work vessel also includes a control box 22, which is located outside the chemical solution tank 7 and is connected to the spray pump 8, the water replenishment pump 17, and the chemical replenishment pump 20. A chemical concentration sensor 23 is submerged in the chemical solution tank 7 to detect the chemical concentration. A propeller 24 is located at the bottom of the chemical solution tank 7 to propel the chemical solution within the tank. The chemical concentration sensor 23 and the propeller 24 are connected to the control box 22 via signal transmission. Based on the data from the chemical concentration sensor 23, the control box 22 automatically controls the operation of the water replenishment pump 17 and the chemical replenishment pump 20, ensuring that the chemical concentration is always maintained within the optimal range. This avoids the tediousness and inaccuracy of manual detection and adjustment, further optimizing the efficiency of chemical use and the treatment effect.

[0096] After spraying a portion of the seedling rope 3, the work vessel pauses for a preset time before continuing its journey, moving the sprayed seedling rope 3 towards the stern into the water. Simultaneously, new sections of seedling rope 3 are guided to work area 6 for treatment. This continuous operation mode significantly improves the efficiency of algae removal and solves the problem of low efficiency in traditional manual cleaning.

[0097] In addition, an algae harvesting device can be installed in the work area 6. The harvesting device includes a limiting bracket 25, a limiting roller 26, and a brush roller peeling machine 27. The limiting bracket 25 is fixed to the inside of the first enclosure 5, and the limiting roller 26 is located below the limiting bracket 25. The brush roller peeling machine 27 is arranged along the width of the hull 4, and the brush roller on the brush roller peeling machine 27 is located below the limiting roller 26. When the main rope 2 passes between the limiting roller 26 and the brush roller, the brush roller rotates to peel the algae 1 off the seedling rope 3, thus harvesting the algae 1. This design allows the work vessel to not only remove miscellaneous algae but also harvest algae 1, improving the versatility of the equipment and further enhancing the overall efficiency of the aquaculture operation.

[0098] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A seaweed cultivation vessel, wherein seaweed (1) cultivated on the water is pulled by ropes, the ropes comprising two main ropes (2) and multiple seedling ropes (3) vertically arranged between the two main ropes (2), the seaweed (1) being cultivated on the seedling ropes (3), characterized in that: The seaweed farming vessel includes a hull (4), with a first fence (5) and a second fence (14) provided on both sides of the hull (4) along the length of the hull (4). A working area (6) is provided in the middle of the hull (4), and the working area (6) is located between the first fences (5) on both sides. The second fence (14) is located outside the first fence (5), and a personnel stay area is formed between the second fence (14) and the first fence (5). The hull (4) is provided with a support structure in the width direction. The support structure is located between the first fences (5) on both sides and is used to support the rope. The two sides of the main rope (2) are limited to the first fences (5). It also includes a spray system, which is set in the work area (6) and includes a chemical tank (7), a spray pump (8), a spray pipe (9) and a nozzle (10). The liquid tank (7) is used to hold the liquid medicine for killing algae. The spray pump (8) is connected to one end of the spray pipe (9) and is used to draw the liquid medicine in the liquid tank (7) into the spray pipe (9). Multiple sets of nozzles (10) are provided and connected to the spray pipe (9), and the nozzles (10) are oriented toward the support structure; It also includes a water replenishment system and a medicine replenishment system. The water replenishment system includes a water replenishment pump (17) and a water replenishment pipe (18). One end of the water replenishment pipe (18) is located outside the hull (4) and is used to extend into the water below the hull (4). The other end of the water replenishment pipe (18) is located in the medicine pool (7). The water replenishment pump (17) is used to pump water below the hull (4) into the medicine pool (7). The refill system includes a raw medicine pool (19), a refill pump (20), and a refill pipe (21). The raw medicine pool (19) is located outside the liquid medicine pool (7) and is used to hold the medicine for weed control. One end of the refill pipe (21) is connected to the raw medicine pool (19), and the other end is connected to the liquid medicine pool (7). The refill pump (20) is used to pump the medicine in the raw medicine pool (19) into the liquid medicine pool (7).

2. The seaweed cultivation vessel according to claim 1, characterized in that: The support structure includes multiple crossbeams (11), which are spaced apart along the length of the hull (4), and both ends of the crossbeams (11) are fixedly connected to the first railings (5) on both sides respectively. The first fence (5) includes multiple vertical bars (12) and connecting handrails (13) connected above the vertical bars (12), and the height of the crossbeam (11) is lower than the height of the vertical bars (12).

3. The seaweed cultivation vessel according to claim 1, characterized in that: The spray pipe (9) includes a main spray pipe (15) and multiple spray branch pipes (16). One end of the main spray pipe (15) is connected to the spray pump (8), and the other end is connected to the spray branch pipe (16). Multiple spray branch pipes (16) are arranged above the liquid tank (7), and each spray branch pipe (16) is arranged along the width direction of the hull (4). The nozzles (10) are evenly arranged on the spray branch pipes (16), and the nozzles (10) are atomizing nozzles (10).

4. The seaweed cultivation vessel according to claim 1, characterized in that: It also includes a control box (22), which is located outside the liquid tank (7) and is connected to the spray pump (8), the water replenishment pump (17) and the medicine replenishment pump (20).

5. The seaweed cultivation vessel according to claim 4, characterized in that: It also includes a drug concentration sensor (23) and a water pusher (24), wherein the drug concentration sensor (23) is immersed in the drug pool (7) and is used to detect the drug concentration; The pusher (24) is located at the bottom of the medicine tank (7) and is used to push the medicine to flow in the medicine tank (7); The drug concentration sensor (23) and the water pusher (24) are connected to the control box (22) via signal.

6. The seaweed cultivation vessel according to claim 1, characterized in that: The work area (6) is also equipped with an algae (1) harvesting device. The harvesting device includes a limiting bracket (25), a limiting roller (26), and a brush roller peeling machine (27). The limiting bracket (25) is fixed inside the first fence (5). The limiting roller (26) is located below the limiting bracket (25). The brush roller peeling machine (27) is arranged along the width direction of the hull (4). The brush roller on the brush roller peeling machine (27) is located below the limiting roller (26), so that the main rope (2) passes between the limiting roller (26) and the brush roller. The brush roller rotates to peel the algae (1) off the seedling rope (3).

7. A method for operating a seaweed cultivation vessel, using the seaweed cultivation vessel as described in any one of claims 1-6, characterized in that: Includes the following steps: S1. Drive the work vessel into the algae (1) cultivation area and make the work vessel travel along the extension direction of the main rope (2); S2. During the movement of the work vessel, the rope that was originally submerged in the water is guided to the upper part of the support structure of the work vessel, so that part of the seed rope (3) is lifted by the pull of the main rope (2) and enters the upper part of the support structure of the hull (4) and enters the work area (6), and the work vessel temporarily stops moving. S3. Turn on the spray system and the nozzle (10) sprays the medicine in the medicine tank (7) onto the seedling rope (3) to kill the algae. S4. After completing the spraying treatment of part of the seedling rope (3), the work boat stays for a preset time and then continues to move, so that the sprayed seedling rope (3) moves to the stern and enters the water. Repeat steps S2 to S4 to continue the operation of removing algae from the subsequent seedling rope (3), thereby realizing the continuous algae removal operation of the entire algae (1) cultivation rope.

8. A method for operating a seaweed cultivation vessel, using the seaweed cultivation vessel as described in claim 6, characterized in that: Includes the following steps: A1. Drive the work vessel into the algae (1) cultivation area and make the work vessel travel along the extension direction of the main rope (2); A2. During the movement of the work vessel, the rope that was originally submerged in the water is guided to the upper part of the support structure of the work vessel, so that part of the seed rope (3) is lifted by the pull of the main rope (2) and enters the upper part of the support structure of the hull (4) and enters the work area (6), so that the main rope (2) passes between the limiting roller (26) and the brush roller, and the work vessel temporarily stops moving. A3. Turn on the brush roller peeling machine (27) to make the brush roller rotate to peel off the algae (1) on the seedling rope (3) and carry out the algae (1) harvesting operation. A4. After completing the algae (1) peeling treatment of part of the seedling rope (3), continue to move, so that the peeled seedling rope (3) moves towards the stern and enters the water. Repeat steps A2 to A4 to continue the algae (1) harvesting operation on the subsequent seedling ropes (3), thereby realizing the continuous harvesting operation of the entire algae (1) cultivation rope.

Images