A fishery aquaculture vessel with a double-ring modular aquaculture compartment and its implementation method

Abstract

This invention discloses a fishery aquaculture vessel with a double-ring modular aquaculture tank and its implementation method. By designing a double-ring aquaculture tank composed of concentric cylinders in the aquaculture vessel, where the inner cylinder and outer ring space are used as independent aquaculture tanks, the stability and uniformity of water flow are effectively improved, reducing water flow turbulence and energy waste. The double-ring design can significantly reduce the impact of free surface effects on ship stability and the aquaculture environment. The conical boundary design helps reduce water ripples and promotes the concentrated sedimentation of aquaculture waste to the collection trap in the center of the tank bottom, facilitating waste discharge and cleaning. In addition, the smooth surface design reduces marine organism attachment and lowers the difficulty of removal. The modular design of the double-ring aquaculture tank can be carried out in parallel with ship construction, which can significantly shorten the shipbuilding cycle and reduce construction costs.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture vessel technology, specifically relating to a fishery aquaculture vessel with a double-ring modular aquaculture compartment and its implementation method. Background Technology

[0002] With the rapid development of marine fisheries, aquaculture vessels, as efficient and controllable aquaculture platforms, have become the mainstream development direction for marine aquaculture. However, existing aquaculture vessels still face some significant technical challenges in their implementation.

[0003] Existing enclosed aquaculture vessels adopt the traditional square aquaculture hull structure. While this design meets the needs of large-scale aquaculture, it has many shortcomings in terms of water circulation, waste discharge, marine organism attachment, and structural stability. The square structure often leads to poor water flow and low water circulation efficiency. Turbulence and eddies are prone to occur at corners and boundaries, resulting in uneven dissolved oxygen levels and non-concentrated waste sedimentation. In addition, the square structure has a greater free surface effect, and water sloshing not only affects the health of farmed fish but also poses a challenge to the ship's seakeeping and stability.

[0004] The existing square hull design of aquaculture vessels has the following drawbacks:

[0005] Poor water circulation: The planar geometry of the square aquaculture tank makes it easy for water to stagnate at the corners, resulting in unstable water circulation and affecting the quality of the aquaculture environment.

[0006] High energy consumption: Due to poor water circulation, high-power water pumps and power station systems are required, which increases energy consumption;

[0007] Waste disposal is difficult: Waste deposits inside the square container are not concentrated, and the sewage system is not efficient enough, which increases the difficulty of cleaning and maintenance;

[0008] The problem of marine organism attachment is serious: the square structure of the container makes it easy for marine organisms to attach, which increases the difficulty and labor intensity of cleaning.

[0009] Poor hull stability: The free surface effect is significant, and the ship's seakeeping and stability are affected by water sloshing. Especially when operating at sea, this can easily cause stress reactions in fish and affect their growth. Summary of the Invention

[0010] To address the aforementioned issues, this invention proposes a method for implementing a fishery aquaculture vessel with a double-ring modular aquaculture compartment. This method establishes an efficient and stable aquaculture water circulation system, minimizes marine organism attachment, facilitates waste collection, reduces energy consumption, and maximizes aquaculture efficiency. It also reduces the capacity of the vessel's aquaculture water circulation system and power station, thus helping to control vessel construction costs. Furthermore, the double-ring aquaculture compartment structure can be modularly manufactured in batches, allowing for parallel implementation with vessel construction. Once completed, the entire compartment is installed on the hull, improving shipbuilding efficiency and reducing costs.

[0011] A fishery aquaculture vessel with a double-ring modular aquaculture compartment is disclosed. The aquaculture space of the vessel is composed of at least one double-ring modular aquaculture compartment. Each double-ring modular aquaculture compartment is composed of a large cylinder and a small cylinder arranged concentrically. The interior of the small cylinder forms a cylindrical aquaculture compartment, and the large cylinder and the small cylinder form a ring-shaped aquaculture compartment. The ring-shaped aquaculture compartment and the cylindrical aquaculture compartment are independent aquaculture spaces.

[0012] The technical solution provided in this application also has the following technical features:

[0013] Preferably, in one embodiment of this application, the upper and lower parts of the annular aquaculture tank are configured as conical surfaces, which are used to reduce water surface sloshing.

[0014] Preferably, in one embodiment of this application, the water circulation inside the cylindrical aquaculture tank and the annular aquaculture tank is an annular water flow.

[0015] Preferably, in one embodiment of this application, the bottom of the cylindrical aquaculture chamber is provided with a groove for collecting aquaculture waste.

[0016] Preferably, in one embodiment of this application, both the cylindrical aquaculture tank and the annular aquaculture tank are provided with independent water inlet and drainage systems.

[0017] Preferably, in one embodiment of this application, the cylindrical aquaculture tank and the annular aquaculture tank are equipped with an automated monitoring system for management, and the monitoring system can monitor parameters such as water quality, oxygen content and temperature in real time.

[0018] Preferably, in one embodiment of this application, the cylindrical aquaculture tank and the annular aquaculture tank are equipped with a cleaning device for removing marine organisms attached to the surface of the tank.

[0019] Preferably, in one embodiment of this application, the top of the annular aquaculture chamber is lower than the top of the cylindrical aquaculture chamber, and the upper edge of the annular aquaculture chamber is provided with a horizontal support structure connected to the chamber wall of the cylindrical aquaculture chamber.

[0020] Preferably, in one embodiment of this application, the large cylinder is provided with a connecting extension I, which is located in the middle of the large cylinder and is water-sealed at both ends; the small cylinder is provided with a connecting extension II, which is located in the middle of the small cylinder and is water-sealed at both ends.

[0021] This application also provides a method for implementing a fishery aquaculture vessel with a double-ring modular aquaculture tank. The aquaculture vessel has multiple double-ring modular aquaculture tanks set in its aquaculture space. Each double-ring aquaculture tank module is formed by a large outer cylinder and a small inner cylinder arranged concentrically. The small inner cylinder forms a cylindrical aquaculture tank, and the large outer cylinder forms a ring-shaped aquaculture tank. During aquaculture, seawater is injected into the bottom of each aquaculture tank using a circulating water pump. The seawater overflows from the drainage pipe at the top of the aquaculture tank, thus forming a ring flow of seawater inside the tank, causing the aquaculture target to swim in a ring inside the tank. At the same time, aquaculture waste inside the tank accumulates at the bottom of the tank with the water flow and is discharged through the sewage pipe.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0023] Compared with the prior art, the technical solution of this application has achieved the following technical advancements:

[0024] 1. This application uses the concentric design of the inner and outer cylinders of the double-ring aquaculture tank to form a stable ring water flow, which solves the problem of turbulent water flow at the corners of the square aquaculture tank and realizes uniform and efficient water circulation, thereby effectively improving the dissolved oxygen content and water temperature distribution uniformity of the water and promoting the healthy growth of fish.

[0025] 2. The structural optimization of the double-ring aquaculture tank in this application reduces water flow turbulence and ineffective energy consumption, thereby reducing the working energy consumption of the water circulation system. Compared with the traditional square aquaculture tank, energy consumption is reduced by about 10-20%, which in turn reduces the design capacity of the circulating water pump and the ship's power station, thus reducing the energy consumption and operating costs of the aquaculture vessel.

[0026] 3. The circular double-ring structure design of this application is conducive to the concentrated sedimentation of waste to the collection trap at the bottom of the tank, which facilitates the collection and discharge of waste and solves the problem of difficult waste collection and inconvenient discharge in square aquaculture tanks, thereby improving the efficiency of water quality management in the aquaculture environment.

[0027] 4. The conical structure of the aquaculture tank in this application effectively reduces the free surface effect, reduces the impact of water sloshing on the hull structure, improves the ship's seakeeping and stability, overcomes the shortcomings of traditional square aquaculture tanks in terms of hull stability, and reduces the disturbance of water surface fluctuations to the cultured fish. Attached Figure Description

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a top view of a fishery aquaculture vessel with a double-ring modular aquaculture compartment, according to one embodiment.

[0030] Figure 2 This is a front view of a fishery aquaculture vessel with a double-ring modular aquaculture compartment, according to one embodiment.

[0031] Figure 3 This is a cross-sectional view of a fishery aquaculture vessel with a double-ring modular aquaculture compartment, according to one embodiment.

[0032] Components in the diagram:

[0033] 1. Hull of the construction vessel

[0034] 2. Large cylinder

[0035] 3. Small cylinder

[0036] 4. Cylindrical aquaculture tank

[0037] 5. Circular breeding chamber. Detailed Implementation

[0038] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings. These embodiments are only for illustrating this application and are not intended to limit the invention.

[0039] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] With the rapid development of marine aquaculture, improving the aquaculture efficiency, reducing energy consumption, and optimizing the structural design of aquaculture vessels have become critical issues that the industry urgently needs to address. Most existing aquaculture vessels use a square cargo hold structure as the aquaculture compartment. This design has drawbacks such as unstable water circulation, high energy consumption, difficulty in collecting aquaculture waste, and difficulty in removing attached marine organisms. Furthermore, the free surface effect of the water body affects the stability and seakeeping of the vessel. Existing designs also have many disadvantages in terms of shipbuilding cycle, cost, and energy efficiency. Therefore, designing an aquaculture vessel with a reasonable structure, high aquaculture efficiency, and low energy consumption has become a pressing technical challenge.

[0043] like Figure 1-3 A fishery aquaculture vessel with a double-ring modular aquaculture compartment is disclosed. The aquaculture space of the vessel is composed of at least one double-ring modular aquaculture compartment. Each double-ring modular aquaculture compartment consists of a large cylinder 2 and a small cylinder 3 arranged concentrically. The interior of the small cylinder 3 forms a cylindrical aquaculture compartment 5, and the large cylinder 2 and the small cylinder 3 form a ring-shaped aquaculture compartment 4. The ring-shaped aquaculture compartment 4 and the cylindrical aquaculture compartment 5 are independent aquaculture spaces.

[0044] When implementing this application, the key points are as follows: The core is to set the aquaculture space of the aquaculture vessel as a set of double-ring aquaculture cabin modules. Each double-ring aquaculture cabin consists of a large cylinder and a small cylinder forming a concentric double-ring structure, specifically including the following characteristics:

[0045] Each aquaculture chamber consists of a large cylinder and a small cylinder. The outer annular aquaculture chamber and the inner cylindrical aquaculture chamber are used independently, forming a double-ring structure. The outer boundaries of both the cylindrical and annular aquaculture chambers are conical, which can effectively reduce water surface sloshing and promote the concentrated sedimentation and discharge of waste.

[0046] The double-ring structure creates a stable circular water flow, which flows evenly within the aquaculture chamber, effectively increasing the dissolved oxygen level and promoting healthy fish growth. The bottom center of the small cylinder is equipped with a "waste collection trap" for easy collection and discharge of waste.

[0047] Smooth surface design: The inner walls and water contact surfaces of the aquaculture tank are designed with smooth surfaces to reduce the adhesion of marine organisms and facilitate cleaning;

[0048] Aquaculture tanks can be modularly produced and mass-produced, and manufactured in parallel during the construction of aquaculture vessels, shortening the shipbuilding cycle and reducing construction costs;

[0049] Energy saving and environmental protection: The double-ring aquaculture tank helps reduce the energy consumption of the water circulation system, reduce the capacity of the ship's power station, and optimize the design of the aquaculture water circulation system, thereby reducing the energy consumption of aquaculture vessels and improving their economic efficiency.

[0050] The upper and lower boundaries of the large cylindrical body 2 of the aquaculture tank are conical in shape; the upper conical design can reduce the sloshing of the water surface and avoid violent fluctuations in the water; the lower conical shape helps the aquaculture waste to settle and facilitates the collection and discharge of waste, thereby achieving more efficient water management.

[0051] A small trap is set at the center of the bottom of the small cylinder 3 to collect aquaculture waste, further improving the efficiency of waste collection and ensuring water quality.

[0052] The inner side of the aquaculture tank and the water contact surface are designed with smooth surfaces, avoiding complex structural accessories, making the water flow smoother, and reducing the difficulty of marine organisms attaching and being removed.

[0053] The space between the large cylinder 2 and the small cylinder 3, as well as the connection point between the outer side of the large cylinder and the hull structure 1, are all watertight structures to ensure that the water does not leak. The cylindrical culture tank 4 and the circular culture tank 5 in each double-ring culture tank can be used independently, which is suitable for separate culture of various fish species or fish of different sizes.

[0054] The internal and external cylindrical structures of the aquaculture tank are subjected to uniform stress, which conforms to the principles of structural mechanics and can withstand greater water pressure. Furthermore, due to the self-balancing characteristics of the cylindrical structure, the overall weight of the structure is relatively light, reducing the burden on the hull.

[0055] The aquaculture tanks are arranged as follows: Based on the total aquaculture water volume requirements of the aquaculture vessel, several double-ring aquaculture tanks are reasonably arranged in the aquaculture area of ​​the vessel. Each double-ring aquaculture tank is composed of a large cylinder 2 and a small cylinder 3, forming a nested layout. Double-ring aquaculture tanks of different sizes can be arranged according to actual needs to ensure the uniform distribution of aquaculture water.

[0056] Seawater is injected into the aquaculture tank from the bottom through water injection pipes, creating a stable circular water flow circulation within the tank. Water overflows from the top of the tank and is discharged through drainage pipes. The circular water flow design promotes continuous movement of fish along the water flow trajectory within the tank, simulating a natural aquatic environment, which helps improve the health of the fish and reduce stress responses. Moreover, the stable and uniform water flow reduces the energy consumption of the water circulation system. Compared to traditional square aquaculture tanks, the double-ring structure reduces water flow turbulence and eddies, thereby improving water flow efficiency, reducing the need for water pump power and ship power station design capacity, and optimizing overall energy consumption and construction costs.

[0057] The connection between the large cylinder 2 and the hull structure is designed to be watertight to prevent water leakage;

[0058] The top of the small cylinder 3 is about 3 meters lower than the annular space 5 to leave room for work; its top is connected to the large cylinder 2 through a horizontal support structure to maintain the integrity and continuity of the overall structure; a work platform is also designed on the support structure to facilitate the operation, maintenance and cleaning of the breeding chamber by the breeding personnel.

[0059] The aquaculture tank exhibits less free surface effect, significantly improving the ship's stability. Compared to a square aquaculture tank, the circular structure has a smaller moment of inertia, reducing the impact of water sloshing on the hull structure, minimizing disturbance to the farmed fish, improving fish growth quality, and reducing the impact of water surface fluctuations on the ship's seakeeping. The smaller moment of inertia of the circular structure also reduces the forces exerted by water surface fluctuations on the hull, improving the ship's stability and minimizing the impact of rolling and swaying on the crew and farmed organisms.

[0060] The smooth surface design inside the aquaculture tank helps reduce the attachment of marine organisms; compared with traditional square aquaculture tanks, the circular and annular surfaces allow for smooth water flow, reducing the water viscosity effect and thus reducing the chance of marine organisms attaching.

[0061] Specifically, in one embodiment of this application, the upper and lower parts of the annular aquaculture tank 5 are set in a conical shape, and the conical surface is used to reduce water surface sloshing; the water circulation inside the cylindrical aquaculture tank 5 and the annular aquaculture tank 4 is an annular water flow; the bottom of the cylindrical aquaculture tank 5 is provided with a groove for collecting aquaculture waste; both the cylindrical aquaculture tank 5 and the annular aquaculture tank 4 are provided with independent water inlet and drainage systems.

[0062] Specifically, in one embodiment of this application, the cylindrical aquaculture tank 5 and the annular aquaculture tank 4 are equipped with an automated monitoring system for management. The monitoring system can monitor parameters such as water quality, oxygen content, and temperature in real time. The cylindrical aquaculture tank 5 and the annular aquaculture tank 4 are also equipped with cleaning equipment for removing marine organisms attached to the surface of the tank.

[0063] Specifically, in one embodiment of this application, the top of the annular culture chamber 4 is lower than the top of the cylindrical culture chamber 5, and the upper edge of the annular culture chamber 4 is provided with a horizontal support structure connected to the wall of the cylindrical culture chamber 5.

[0064] Specifically, in one embodiment of this application, the large cylinder 2 is provided with a connecting extension I, which is located in the middle of the large cylinder 2 and is water-sealed at both ends; the small cylinder 3 is provided with a connecting extension II, which is located in the middle of the small cylinder 3 and is water-sealed at both ends.

[0065] Specifically, in one embodiment of this application, a method for implementing a fishery aquaculture vessel with a double-ring modular aquaculture tank is provided. Multiple double-ring modular aquaculture tanks are arranged within the aquaculture space of the vessel. Each double-ring aquaculture tank module is formed by a large outer cylinder 2 and a small inner cylinder 3 arranged concentrically. The small inner cylinder forms a cylindrical aquaculture tank 5, and the large outer cylinder forms a ring-shaped aquaculture tank 4. During aquaculture, a circulating water pump injects seawater into the bottom of each aquaculture tank. The seawater overflows from the drainage pipe at the top of the aquaculture tank, thus forming a ring-shaped flow of seawater within the tank, causing the aquaculture target to move in a ring within the tank. Simultaneously, aquaculture waste within the tank accumulates at the bottom of the tank with the water flow and is discharged through the sewage pipe.

[0066] Specifically, in one embodiment of this application, a modification scheme is proposed: the aquaculture space of the aquaculture vessel is designed as a set of independent, identical double-ring structure spaces;

[0067] Each double-ring structure space consists of a large cylinder 2 and a small cylinder 3, with the two cylinders arranged concentrically;

[0068] It should be noted that the large cylinder 2 and the small cylinder 3 are not solid; they are hollow inside, forming a breeding space.

[0069] The upper and lower parts of the large cylinder 2 are set as conical surfaces;

[0070] A small well is set at the center of the bottom of the small cylinder 3 to form a groove;

[0071] The outer side of the large cylinder 2 is connected to the surrounding hull structure to form a complete structure;

[0072] The bottom of the small cylinder 3 is connected to the bottom of the ship, and the top is about three meters lower than the top of the annular space to leave room for work. A horizontal support structure is set at its upper edge to connect to the bulkhead of the large cylinder 2 to maintain structural integrity and continuity. A work platform is set on the horizontal support structure.

[0073] The surfaces of the large cylinder 2 and the small cylinder 3 that are in contact with the aquaculture water are both watertight surfaces, and the annular space and cylindrical space formed therein are used as their own independent aquaculture chambers.

[0074] Both the large cylinder 2 and the small cylinder 3 have smooth surfaces in contact with the aquaculture water, thus avoiding the installation of structural components;

[0075] The diameter and height of the large cylinder 2 and the small cylinder 3 are selected according to the actual needs of the aquaculture vessel. Generally, it is best to distribute the water evenly, or to plan according to the actual aquaculture needs.

[0076] Appropriate spacing is left between the boundaries of the aquaculture tanks and the hull outline, as well as between the boundaries of adjacent aquaculture tanks, which can be planned as ballast tanks, equipment spaces, pipeline and electrical circuit channels, work channels, etc.

[0077] Recirculating aquaculture is the core function of enclosed aquaculture vessels. During aquaculture, a stable water circulation needs to be established within the aquaculture tank through the injection and discharge of water to achieve goals including but not limited to: replacing or filtering ammonia nitrogen, uneaten feed, and feces; increasing dissolved oxygen levels to promote fish feeding and growth and reduce feed consumption; using ultraviolet light to kill pathogens and reduce or avoid the use of antibiotics; maintaining a slightly cool, constant water temperature; and promoting fish movement to improve fish meat quality. This provides fish with a stable growth environment characterized by "constant temperature, cleanliness, high oxygen, flow, and low stress," thereby shortening the aquaculture cycle and improving aquaculture efficiency. Therefore, establishing a stable and efficient water circulation system is a core element of the aquaculture tank design.

[0078] Compared to traditional square aquaculture tanks, aquaculture vessels with double-ring aquaculture tanks offer advantages in establishing stable and efficient aquaculture water circulation. They feature stable, uniform, and efficient water flow, which can solve many problems associated with square aquaculture tanks, such as poor water flow at the tank boundaries, turbulent water flow in corners, insufficient water circulation and filtration, high energy consumption in water circulation, large workload for removing marine organisms from the tank walls, difficulty in collecting and settling aquaculture waste, stress on fish caused by large water sloshing, and high shipbuilding costs.

[0079] The double-ring aquaculture tank is more effective in establishing a stable water circulation system. Therefore, the efficiency of replacing and filtering ammonia nitrogen, uneaten feed, and feces through water circulation is higher. Compared to square aquaculture tanks, it can reduce aquaculture waste in the water to within standard limits in a shorter time or with fewer water changes. At the same time, it avoids the ineffective energy consumption caused by corner turbulence and eddies in square aquaculture tanks. Preliminary assessments indicate that using a double-ring aquaculture tank can reduce the energy consumption of the circulating water system by approximately 10-20%, thereby reducing the cost of aquaculture on the vessel by approximately 4-8%. The reduced energy consumption of the circulating water system provides better conditions for optimizing the design of the water circulation system and the ship's power station, and also helps to reduce shipbuilding costs.

[0080] The circular boundary surface of the double-ring aquaculture tank allows for smooth water flow, avoiding the problems of sluggish water flow due to water viscosity and turbulent water flow in corners that occur on the flat surface of a square aquaculture tank. This significantly improves the attachment and growth of marine organisms within the aquaculture tank. According to marine biology, water scouring is not conducive to the attachment and growth of marine organisms on object surfaces. Consequently, the workload of removing attached marine organisms from the tank walls is reduced, thus helping to lower aquaculture costs. Furthermore, the circular boundary is a regular shape without corners, allowing for efficient removal of attached organisms using automated equipment.

[0081] The circular geometry of the double-ring aquaculture tank facilitates the establishment of a stable and uniform circulating water flow, a uniformly distributed high dissolved oxygen level, and a uniformly distributed, slightly cool, constant temperature. It also provides an ideal "circular raceway" for the fish, encouraging them to swim along it under the propulsion of the water flow. These conditions are beneficial for fish disease resistance, feeding, growth, improved meat quality, and reduced feed consumption. In contrast, square aquaculture tanks suffer from uneven dissolved oxygen levels, uneven water temperature distribution, and uneven feed consumption due to slow water flow at the edges and turbulent flow at the corners. According to aquaculture experience, in square tanks, fish tend to congregate at the edges and corners where water flow is slower, which is detrimental to feeding and growth. Furthermore, this congregation increases the risk of cross-infection of diseases on the fish's surface. The double-ring aquaculture tank effectively solves these problems.

[0082] This annular aquaculture tank design can reduce the adverse effects of the free surface effect of the aquaculture water on ship stability, reduce the impact of water sloshing on the hull structure, and reduce the disturbance of water sloshing to the farmed fish. The free surface effect is determined by the moment of inertia of the liquid surface on the centroidal axis. The moment of inertia of a circle is approximately 60% of that of a square of the same scale. Therefore, a circle and a square can significantly reduce the free surface effect of the aquaculture tank. The double-annular aquaculture tank proposed in this invention is composed of nested cylindrical structures of different sizes. According to the principles of structural mechanics, cylindrical structures have uniform stress distribution, strong pressure resistance, and lighter structural weight. Preliminary assessments indicate that the structural weight of the double-annular aquaculture tank can be reduced by approximately 10%.

[0083] In summary, this invention aims to address the shortcomings of existing aquaculture vessels in terms of water circulation, aquaculture waste collection, energy efficiency optimization, and vessel stability. By adopting a double-ring aquaculture tank structure, it proposes a more efficient solution for aquaculture vessels. The core of this solution is the nested structure of large and small cylinders, forming inner and outer circular and annular aquaculture tanks, which effectively promotes stable water circulation, reduces water flow turbulence, improves water flow efficiency, and lowers energy consumption. This structure optimizes the aquaculture environment, allowing aquaculture waste to settle at the bottom of the conical tanks, facilitating cleaning and ensuring stable water quality. The double-ring aquaculture tank design not only enhances the stability of the aquaculture vessel and reduces the impact of water sloshing on the hull but also reduces the interference of free surface effects on farmed fish. This technical solution features a modular design, allowing manufacturing to be completed concurrently with ship construction, reducing shipbuilding time and costs. Furthermore, the optimized water management and waste removal design reduces aquaculture costs, improves aquaculture efficiency, and meets the demands of modern fisheries for high efficiency, energy conservation, and sustainable development.

[0084] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A fishery aquaculture vessel with a double-ring modular aquaculture compartment, characterized in that, The aquaculture space of the aquaculture vessel is composed of at least one double-ring module aquaculture tank. Each double-ring module aquaculture tank is composed of a large cylinder (2) and a small cylinder (3) arranged concentrically. The interior of the small cylinder (3) forms a cylindrical aquaculture tank (5), and the large cylinder (2) and the small cylinder (3) form a ring-shaped aquaculture tank (4). The ring-shaped aquaculture tank (4) and the cylindrical aquaculture tank (5) are independent aquaculture spaces.

2. The aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The upper and lower parts of the annular aquaculture tank (5) are set in a conical shape, and the conical surface is used to reduce water surface sloshing.

3. The aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The water circulation inside the cylindrical culture tank (5) and the annular culture tank (4) is annular water flow.

4. The aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The bottom of the cylindrical aquaculture chamber (5) is provided with a groove for collecting aquaculture waste.

5. A fishery aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, Both the cylindrical culture tank (5) and the annular culture tank (4) are equipped with independent water inlet and drainage systems.

6. A fishery aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The cylindrical aquaculture tank (5) and the annular aquaculture tank (4) are equipped with an automated monitoring system for management. The monitoring system can monitor parameters such as water quality, oxygen content and temperature in real time.

7. A fishery aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The cylindrical aquaculture tank (5) and the annular aquaculture tank (4) are equipped with cleaning equipment to remove marine organisms attached to the surface of the tank.

8. A fishery aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The top of the annular aquaculture chamber (4) is lower than the top of the cylindrical aquaculture chamber (5), and the upper edge of the annular aquaculture chamber (4) is provided with a horizontal support structure connected to the wall of the cylindrical aquaculture chamber (5).

9. A fishery aquaculture vessel with a double-ring modular aquaculture compartment as described in claim 1, characterized in that, The large cylinder (2) is equipped with a connecting extension part I, which is located in the middle of the large cylinder (2) and the two ends of the connecting extension part I are water-sealed; the small cylinder (3) is equipped with a connecting extension part II, which is located in the middle of the small cylinder (3) and the two ends of the connecting extension part II are water-sealed.

10. A method for implementing a fishery aquaculture vessel with a double-ring modular aquaculture compartment, wherein a large cargo ship is modified into a fishery aquaculture vessel with a double-ring modular aquaculture compartment as described in any one of claims 1-9, characterized in that, The aquaculture vessel is equipped with at least one double-ring module aquaculture tank. Each double-ring aquaculture tank module is composed of an outer large cylinder (2) and an inner small cylinder (3) arranged concentrically. The inner small cylinder forms a cylindrical aquaculture tank (5), and the outer large cylinder forms a circular aquaculture tank (4). During aquaculture, seawater is injected into the bottom of each aquaculture tank using a circulating water pump. The seawater overflows from the drainage pipe at the top of the aquaculture tank, thus forming a circular flow of seawater in the tank, causing the aquaculture target to swim in a circular motion in the tank. At the same time, the aquaculture waste in the tank is collected at the bottom of the tank with the water flow and discharged through the sewage pipe.

Images