Aquaculture tank and aquaculture workboat using the same

Abstract

The breeding tank described in the present invention and the breeding workboat using the breeding tank propose a new modular breeding tank body design applicable to shore-based or carried on a workboat, with the aim of achieving the design objectives of optimizing the design of the vehicle such as the hull shape, increasing the breeding water volume, and improving the automation level and breeding efficiency. The breeding tank includes a frame assembly formed by sequentially splicing several side plates and a bottom plate, with a closed cavity inside; a hollow middle column is vertically arranged in the inner cavity of the frame assembly, and a bridge is horizontally connected to the tops of several side plates; several groups of residual bait through holes are arranged on the side wall of the middle column, and a fish outlet is formed in a horizontal circular distribution at the side of the connection between the middle column and the bottom plate; a feeding assembly is arranged in the inner cavity of the frame assembly; several groups of first water inlet pipes are vertically distributed in the inner cavity of the frame assembly, the bottom of the first water inlet pipe is closed and does not contact the bottom plate of the frame assembly, and several groups of water inlets are opened on its side wall.

Description

Technical Field

[0001] The present invention relates to a monomer modular aquaculture tank and an aquaculture workboat applying such an aquaculture space design, belonging to the technical field of aquaculture. Background Art

[0002] At present, the existing running water aquaculture and recirculating aquaculture technologies have been widely promoted and used in the aquaculture industry. Based on the aquaculture containers, feed feeding, and water treatment equipment in a specific space, the aquaculture water environment can be improved accordingly, the aquaculture density of the water body can be increased, and ultimately higher growth rates and yields can be obtained.

[0003] As in the following priorly published Chinese patent application, with the application number 2021106894099 and the name of a fully movable three-dimensional aquatic organism aquaculture system, an immersion three-dimensional device and a control method suitable for the aquaculture of various aquatic organisms are proposed. Through the design and use of several modular and movable small aquaculture containers arranged in a queue, during the sequential movement of all aquaculture containers, the management of multiple operations such as feeding, catching, sorting, and cleaning is implemented, in order to achieve the dynamic and refined management of the entire aquaculture cycle of aquatic organisms, and correspondingly improve the yield of aquaculture organisms per unit area and the water body utilization rate, thereby solving the mechanization and automation technical problems of feeding, catching, sorting, and cleaning in the immersion multi-layer aquaculture mode. The fully movable three-dimensional aquatic organism aquaculture system includes an outer frame assembly, several small aquaculture containers arranged in a circular queue, an external lateral movement assembly, an external vertical movement assembly, and a circulation drive assembly.

[0004] When the above-mentioned prior art is applied to a large ship-type deep-sea fishery aquaculture workboat, it is still insufficient in terms of the overall stability of the aquaculture tank body, space utilization rate, and environmental simulation authenticity. The utilization rate of the actual aquaculture space is relatively low compared with the outer tank. Especially for benthic aquatic organisms, when the small aquaculture tank moves within the space range, the structural proportion of the overall aquaculture space is too large, which not only affects the aquaculture yield but also is not convenient for feeding, observing the fish situation, and harvesting fish. More importantly, when the workboat simulates the actual deep-sea and ocean environment, it has high requirements for water flow, and it is necessary to create a circulating water flow similar to the natural aquatic environment to meet the growth needs of aquatic organisms and improve the aquaculture yield.

[0005] In view of this, the present patent application is specifically proposed. Summary of the Invention

[0006] The aquaculture tank and the aquaculture workboat applying the aquaculture tank of the present invention are proposed to solve the problems existing in the above-mentioned prior art, and a new modular aquaculture tank body design applicable to shore-based or carried on a workboat is proposed, in order to achieve the design purposes of optimizing the design of the vehicle such as the hull shape, increasing the aquaculture water volume, and improving the automation degree and aquaculture efficiency.

[0007] To achieve the above design objectives, the breeding tank includes a frame assembly formed by sequentially splicing several side plates and a bottom plate, with a sealed cavity inside. The difference from the prior art is that a hollow middle column is vertically arranged in the inner cavity of the frame assembly. A bridge is horizontally connected to the tops of several side plates, and each end of the bridge is respectively connected to the frame assembly of the workboat or an adjacent breeding tank through the side plates; a plurality of groups of residual bait through holes are arranged on the side wall of the middle column, and a fish outlet is formed in a horizontal annular distribution at the side of the connection between the middle column and the bottom plate; the top end of the middle column is connected to the bridge through penetration, and its bottom end is connected to the bottom plate of the frame assembly through penetration and is communicated with the water inlet end of the overflow pipe, and the water outlet end of the overflow pipe is located outside the frame assembly; a feeding assembly is arranged in the inner cavity of the frame assembly; a plurality of groups of first water inlet pipes are vertically distributed in the inner cavity of the frame assembly. The bottom of the first water inlet pipe is closed and does not contact the bottom plate of the frame assembly, and a plurality of water inlets are opened on its side wall. After the breeding water enters the first water inlet pipe, it is discharged into the inner cavity of the frame assembly through the water inlets.

[0008] Further, a plurality of groups of guide plates are symmetrically arranged on the side wall of the middle column along its vertical center line.

[0009] Further, the feeding assembly is installed and connected to the bridge. The feeding assembly includes a hopper and at least one group of feeding pipes communicating with the hopper. A stirring paddle assembly is arranged along the axial center line inside the feeding pipe; the axial end of the stirring paddle assembly is connected to the output shaft of a reduction motor, and several paddle blades are arranged radially along the stirring paddle assembly. A plurality of feeding ports are arranged axially on the side wall of the first feeding pipe.

[0010] Further, the paddle blades radially distributed on the stirring paddle assembly are arranged in a continuous spiral pattern, and the paddle blades and the feeding pipe are in clearance fit; the paddle blades of the stirring paddle assembly extend from the output shaft of the reduction motor to the end of the inner cavity of the feeding pipe.

[0011] Further, for the plurality of groups of first water inlet pipes, their water inlets are at least on a circle of a horizontal section, and the opening directions of the water inlets are arranged in a clockwise or counterclockwise direction.

[0012] Further, at least two groups of the plurality of groups of first water inlet pipes are symmetrically distributed around the middle column; among the two groups of first water inlet pipes symmetrically distributed around the center, the water inlets of one group of first water inlet pipes are distributed in the upper part of the vertical side wall, and the water inlets of the other group of first water inlet pipes are distributed in the lower part of the vertical side wall.

[0013] Further, a solenoid valve is installed on the pipeline of the overflow pipe, and a fish suction pipe is connected in parallel to the side of the overflow pipe. The outer port of the fish suction pipe is adjacent to the breeding water level in the inner cavity of the frame assembly.

[0014] Further, several fish inlet pipes with both ends open are connected to the side plates through penetration, and their fish inlets are communicated with the inner cavity of the frame assembly.

[0015] Based on the above structural design of the cultivation tank, the present application proposes a new type of cultivation workboat applying such cultivation tanks. The cultivation workboat includes a hull, an upper deck located at the top of the hull, and a cabin formed by fixedly connecting a ship's board located at the bottom of the inner cavity of the hull; several cultivation tanks are installed on the upper deck, and the frame assembly of each cultivation tank is fixedly connected to the upper deck separately.

[0016] Furthermore, several cultivation tanks are installed on the ship's board of the cultivation workboat, and several frame assemblies are spliced and combined into an integrated cultivation tank body structure, and the side plates of adjacent frame assemblies are shared.

[0017] In summary, the cultivation tank and the cultivation workboat applying the cultivation tank have the following advantages:

[0018] The present application makes improvements and optimizations for the immersion type three-dimensional cultivation of various types of aquatic organisms. The proposed cultivation tank body can be applied to land-based industrialized cultivation, large-scale cultivation workboat platforms, and deep-sea fixed platform cultivation systems in a modular and standardized embedded structure, with high cultivation efficiency and conforming to the industrialized and precision cultivation mode.

[0019] The present application proposes a large-scale modular and standardized tank body design, providing an infrastructure platform for connecting and integrating supporting subsystems such as drainage, feeding, catching, and cleaning required for cultivation, thereby facilitating the batch cultivation of various types of aquatic organisms and reducing production costs.

[0020] Based on the tank body structure proposed in the present application, different operating direction circulating water flows can be created by combining the built-in middle columns and the inflowing and outflowing water, thereby simulating a cultivation environment with a higher similarity to natural water bodies, improving the adaptability and survival comfort of aquatic organisms, and effectively increasing the cultivation yield.

[0021] 4. The single body structure design of the cultivation tank proposed in the present application is conducive to the subsequent series-parallel layout of multiple groups of tank bodies, forming a

[0022] more stable immersion type cultivation space structure that can withstand larger waves and winds, and the single body tank body is easy to operate, maintain, with low risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application solution will be further described in conjunction with the following drawings;

[0024] Figure 1 is the overall isometric view of the cultivation tank described in the present application;

[0025] Figure 2 is Figure 1 the partial enlarged view of point A of

[0026] Figure 3 isFigure 1 Partial enlarged view of location B;

[0027] Figure 4 is as shown in Figure 1 Top view of the structure shown;

[0028] Figure 5 is Figure 4 Cross-sectional view of location C;

[0029] Figure 6 is Figure 5 Partial enlarged view of location D;

[0030] Figure 7 is as shown in Figure 1 Bottom isometric view of the structure shown;

[0031] Figure 8 Schematic structural view of the feeding assembly;

[0032] Figure 9 is as shown in Figure 8 Cross-sectional view of the structure shown;

[0033] Figure 10 is Figure 8 Partial enlarged view of location H in;

[0034] Figure 11 Isometric view of the cultivation bin shown in Embodiment 2;

[0035] Figure 12 Isometric view of the cultivation bin shown in Embodiment 3;

[0036] Figure 13 Isometric view of applying the cultivation bins shown in Embodiments 1 to 3 to the cultivation workboat;

[0037] Figure 14 is Figure 13 Partial enlarged view of location E;

[0038] Figure 15 is as shown in Figure 13 Side view of the cultivation workboat shown;

[0039] Figure 16 is Figure 15 Partial enlarged view of location F;

[0040] In the above drawings, W1 points to the cultivation water level, W2 points to the horizontal water flow, and W3, W4 point

[0041] to the vertical water flow. Detailed implementation manner

[0042] The cultivation tank described in this application can be set in onshore aquaculture facilities or inside deep - sea aquaculture vessels and aquaculture platforms for cultivating various types of aquatic organisms. In this cultivation tank, the full - cycle cultivation from fry to catch, automated sorting and catching operations can be achieved, and indicators such as the water depth and oxygen concentration inside the tank body can be adjusted according to the cultivation plan, so as to achieve dynamic and refined aquaculture management.

[0043] Example 1, as Figures 1 to 10 shown, the described cultivation tank includes a frame assembly 100 formed by sequentially splicing several side plates 101 and a bottom plate, with a closed cavity inside. The frame assembly 100 can be integrally connected to the deck of the vessel, embedded in the ship's cabin, or installed on the shore for use; the frame assembly 100 is an overall polyhedron structure, such as an octagonal prism shape as shown in the figure;

[0044] A hollow intermediate column 102 is vertically arranged in the inner cavity of the frame assembly 100. At the top of several side plates 101, a bridge 103 for laying equipment and allowing operators to walk and stand is horizontally connected; in this embodiment, the bridge 103 is a cross - shaped structure; each end of the bridge 103 is connected to the frame assembly 100 of the vessel or an adjacent cultivation tank through the side plate 101;

[0045] The top end of the intermediate column 102 is connected through the bridge 103, and its bottom end passes through the bottom plate of the frame assembly 100 and is connected to the water inlet end of the overflow pipe 107. The water outlet end of the overflow pipe 107 is located outside the frame assembly 100 (slightly higher than the W1 aquaculture water level);

[0046] For the described intermediate column 102, several groups of residual bait through - holes 106 are provided on its side wall to introduce the residual bait in the inner cavity of the frame assembly 100 into the intermediate column 102, and then flow out of the inner cavity of the frame assembly 100 through the overflow pipe 107 with the water flow, keeping the internal aquaculture environment relatively clean;

[0047] On the side wall of the intermediate column 102, several groups of flow - guiding plates 105 are symmetrically arranged along its vertical center line. The flow - guiding plates 105 can be vertically or horizontally arranged, or a sliding structure with a flexibly adjustable angle (such as a certain angle relative to the vertical or horizontal direction) can be set. When circulating water flow is injected into the inner cavity of the frame assembly 100, the blocking and counter - pushing effects of the flow - guiding plates 105 can assist in forming a directional water flow with a certain flow direction and flow rate, thereby improving the effect of simulating the real aquatic environment;

[0048] A fish outlet 126 is formed horizontally and annularly at the side of the connection between the intermediate column 102 and the bottom plate.

[0049] Inside the inner cavity of the frame assembly 100, a feeding assembly 200 is provided, which includes a hopper 201, a first feeding pipe 203 and a second feeding pipe 205 that communicate with the hopper 201. Inside the first feeding pipe 203, a stirring paddle assembly 207 is arranged along the axial centerline. The axial end of the stirring paddle assembly 207 is connected to the output shaft 206 of the first reduction motor 202. Several paddle blades are arranged radially along the stirring paddle assembly 207. On the side wall of the first feeding pipe 203, several feeding ports 208 are arranged axially. Driven by the first reduction motor 202, the bait put into the hopper 201 moves axially along the inner cavity of the first feeding pipe 203 under the stirring and pushing of the stirring paddle assembly 207, and then is evenly thrown out from the feeding ports 208 into the breeding water body below.

[0050] Inside the second feeding pipe 205, a stirring paddle assembly 207 driven and connected by a second reduction motor 204 is arranged along the axial centerline, and its structure and working principle are the same as those of the first feeding pipe 203.

[0051] The feeding assembly 200 can be integrally installed and connected to the bridge 103. Specifically, the bases of the hopper 201, the first reduction motor 202 and / or the second reduction motor 204 are fixedly connected to the bridge 103.

[0052] The paddle blades radially distributed on the stirring paddle assembly 207 are arranged in a continuous spiral pattern, and the paddle blades have a clearance fit relationship with both the first feeding pipe 203 and the second feeding pipe 205;

[0053] Further, the paddle blades of the stirring paddle assembly 207 extend from the output shaft of the reduction motor to the end of the inner cavity of the feeding pipe;

[0054] When the stirring paddle assembly 207 rotates around a fixed axis, the bait will not adhere to the inner side wall of the first feeding pipe 203 and the second feeding pipe 205 during the process of moving axially under the stirring and pushing of the paddle blades, thus avoiding the phenomenon of moisture and corruption caused by long-term accumulation.

[0055] An array of first water inlet pipes 104 are vertically distributed in the inner cavity of the frame assembly 100. The side part of each group of first water inlet pipes 104 penetrates and connects to the side plate 101 and is connected to a second water inlet pipe 110 at the outer end. The top of the first water inlet pipe 104 is fixedly connected to the bottom of the bridge 103 to increase the connection stability of its overall structure;

[0056] For the first water inlet pipe 104 described above, its bottom is closed and does not contact the bottom plate of the frame assembly 100. An array of water inlet openings 111 are opened on its side wall. After the breeding water enters the first water inlet pipe 104, it is discharged into the inner cavity of the frame assembly 100 through the water inlet openings 111;

[0057] The described first water inlet pipe array 104 has its water inlet 111 at least on a circle of a set of horizontal sections, and the opening directions of the water inlets 111 are arranged in a clockwise or counterclockwise direction;

[0058] Since the water inlets 111 of each set of the first water inlet pipe array 104 are vertically distributed along its side wall, and the water outlet directions of the first water inlet pipe array 104 are clockwise or counterclockwise in the circumferential direction on the horizontal section, when water enters the inner cavity of the frame assembly 100 from the water inlets 111 of the first water inlet pipe array 104 simultaneously, with the assistance of the flow guide plate 105 on the side wall of the middle column 102, a clockwise or counterclockwise W2 water flow as shown in Figure 4 can be formed, thereby constructing a circulating water flow in a certain direction inside the aquaculture tank body, improving the natural authenticity of the growth environment of aquatic organisms, and at the same time, impurities such as residual bait and suspended matter S2 can be transported to the middle column 102, and then discharged from the inside of the middle column 102 along the direction of the W6 water flow as shown in Figure 6 through the overflow pipe 107;

[0059] The described first water inlet pipe array 104 has at least two groups (such as combinations of two groups, four groups, or six groups, etc.) symmetrically distributed around the middle column 102; among the two groups of first water inlet pipes 104 that are symmetrically distributed, the water inlets 111 of one group of first water inlet pipes 104 are distributed in the upper part of the vertical side wall, and the water inlets 111 of the other group of first water inlet pipes 104 are distributed in the lower part of the vertical side wall;

[0060] Then when at least two groups of the first water inlet pipes 104 that are symmetrically distributed as described above enter water into the inner cavity of the frame assembly 100, due to the water inlets 111 entering water from the upper or lower part of the vertical direction, with the assistance of the flow guide plate 105 on the side wall of the middle column 102, a counterclockwise W3 circulating water flow in the vertical direction and a clockwise W4 circulating water flow in the vertical direction as shown in Figure 5 can be formed;

[0061] The circulating water flows W3 and W4 can not only form a large circulation in the vertical direction to simulate the real growth environment of aquatic organisms, but also gather impurities such as residual bait and suspended matter S2 along the bottom of the inner cavity of the frame assembly 100, and then be discharged through the overflow pipe 107 along the W6 water flow as shown in Figure 6 from the fish outlet 126 at the bottom of the middle column 102.

[0062] The above-mentioned clockwise or counterclockwise W2 water flow in the horizontal direction, counterclockwise W3 water flow in the vertical direction, and clockwise W4 water flow are all the result of the combined action of the water inlet 111 of the first water inlet pipe 104 and the flow guide plate 105 of the middle column 102. In actual application, the circulating water flow in the horizontal and vertical directions can be formed simultaneously or separately, which can be determined according to the types and living habits of the aquaculture organisms. When forming the circulating water flow in the horizontal or vertical direction separately, it is only necessary to select the first water inlet pipe 104 with the corresponding distribution characteristics of the water inlet 111 to supply water into the inner cavity of the frame assembly 100.

[0063] Several fish inlet pipes 118 with openings at both ends are connected through the side plates 101, and their fish inlet openings are communicated with the inner cavity of the frame assembly 100;

[0064] Several support columns 150 are installed at the bottom of the bottom plate to form the overall fixed connection part of the frame assembly 100;

[0065] An electromagnetic valve 108 is installed on the pipeline of the overflow pipe 107. The side part of the overflow pipe 107 is bypass-connected to the fish suction pipe 109, and the external port of the fish suction pipe 109 is adjacent to the position of the aquaculture water level W1 in the inner cavity of the frame assembly 100; the dead aquaculture organisms S1 in the inner cavity of the frame assembly 100 enter the overflow pipe 107 through the fish outlet 126 under the action of the water flow and are finally discharged;

[0066] As Figures 13 to 16 shown, based on the overall structural design of the above aquaculture tank, the aquaculture tank is placed on a deep-sea and far-sea aquaculture ship to realize the aquaculture and catching operations of various types of aquaculture organisms.

[0067] The aquaculture ship 2000 is fixedly connected and composed of a hull 2001, an upper deck 2002 located at the top of the hull 2001, and a ship board 2003 located at the bottom of the inner cavity of the hull 2001; the remaining components of the ship are known technologies and will not be elaborated here.

[0068] Several aquaculture tanks are installed on the upper deck 2002, and each frame assembly 100 of the aquaculture tank is fixedly connected to the upper deck 2002 through the support column 150 at the bottom separately;

[0069] Several aquaculture tanks are also installed on the ship board 2003. Several frame assemblies 100 are spliced and combined into an integrated aquaculture tank body structure. The side plates 101 of adjacent frame assemblies 100 can be shared. For example, in Figure 14 , multiple frame assemblies 100 are butted together to form the shared and overlapping plate surfaces W7, W8, and W9, thereby correspondingly saving the usage amount of the side plates 101. The other non-shared surfaces are fixedly connected to the inside of the hull 2001 through the side plates 101; such an internal splicing structural design can significantly save the usage amount of steel, and the effect is more obvious on large aquaculture ships such as 100,000-ton and 80,000-cubic aquaculture water bodies.

[0070] The above-mentioned aquaculture bin can be applied to the shore-based aquaculture mode. The shore-based aquaculture is similar to the aquaculture on an aquaculture ship. Each frame assembly 100 can be used as an independent module and is fixedly connected to the ground through support columns 150. It can also be as Figure 11 shown, multiple frame assemblies 100 are butted together, and the overlapping surfaces W7, W8, and W9 can be shared. The exterior and the frame assembly 100 are made of reinforced concrete, and the inlet and outlet pipes are arranged separately, so as to achieve the purpose of saving.

[0071] Based on the aquaculture bin designed with the above structure, the present embodiment also proposes the following aquaculture method. This aquaculture method can be applied to the interior of deep-sea aquaculture ships or aquaculture platforms, as well as shore-based facilities, so as to realize the full-life-cycle aquaculture, automatic sorting, catching operations and management of various types of aquatic organisms from fry to catching. Specifically,

[0072] A hollow intermediate column 102 is vertically arranged in the inner cavity of the frame assembly 100 of the aquaculture bin. A bridge 103 is horizontally connected to the top of the inner cavity of the frame assembly 100, and each end of the bridge 103 is respectively communicated with the ship or an adjacent aquaculture bin;

[0073] The top end of the intermediate column 102 is connected through the bridge 103, and its bottom end penetrates through the bottom plate of the frame assembly 100 and is communicated with the water inlet end of the overflow pipe 107;

[0074] A feeding assembly 200 is arranged in the inner cavity of the frame assembly 100. The bait fed from the hopper 201 moves axially along the inner cavity of the first feeding pipe 203 under the stirring and pushing of the stirring paddle assembly 207, and then is evenly thrown out from the feeding port 208 into the lower aquaculture water body;

[0075] An array of first inlet pipes 104 is vertically distributed in the inner cavity of the frame assembly 100. The bottom of each group of first inlet pipes 104 is closed and does not contact the bottom plate of the frame assembly 100. An array of water inlets 111 is opened on its side wall. After the aquaculture water enters the first inlet pipe 104, it is discharged into the inner cavity of the frame assembly 100 through the water inlets 111;

[0076] Several fish inlet pipes 118 with both ends open are penetrated and connected to the side plate 101, and their fish inlet ports are communicated with the inner cavity of the frame assembly 100;

[0077] Several support columns 150 are installed at the bottom of the bottom plate to form an overall fixed connection part of the frame assembly 100.

[0078] According to the above aquaculture method, a water pump is used to inject seawater into the first inlet pipe 104 through the second inlet pipe 110, and water enters the bin through the vertically distributed water inlets 111 on the side wall of the first inlet pipe 104;

[0079] The seawater first fills the bottom of the inner cavity of the frame assembly 100, and then the water level gradually rises. When the water level reaches the aquaculture water level W1 and continues to be filled with water, the overflow pipe 107 will discharge the excess water from the bottom;

[0080] The aquatic organisms to be cultured are sent through the fish inlet 130 at the connection between the fish inlet pipe 118 and the frame assembly 100, and the feed for feeding is fed through the feeding assembly 200:

[0081] When there is a situation where the aquatic organisms die during the aquaculture process, for example, when the fish die, they will first sink to the bottom and then float. When they sink to the bottom, they will be discharged through the fish outlet 126 at the bottom of the middle column 102 and flow out through the overflow pipe 107 with the water flow; when they float, the on-site workers can manually salvage them on the bridge 103 or suck them away from the fish suction pipe 109;

[0082] When the aquatic organisms reach the catching condition, the lifting net can be used to drive the aquatic organisms to the bottom of the inner cavity of the frame assembly 100, close the solenoid valve 108, and suck the aquatic organisms from the fish outlet 126 at the bottom of the middle column 102 into the designated fishing device through the fish suction pipe 109; or, the lifting net can be used to drive the aquatic organisms to the top of the inner cavity of the frame assembly 100, and the operators can manually catch them on the bridge 103.

[0083] Furthermore, a plurality of groups of residual bait through holes 106 are arranged on the side wall of the middle column 102, and the impurities remaining in the inner cavity of the frame assembly 100 are introduced into the middle column 102 and discharged through the overflow pipe 107 with the water flow; a horizontally annularly distributed fish outlet 126 is formed at the side part of the connection between the middle column 102 and the bottom plate.

[0084] Furthermore, the radially distributed blades of the stirring paddle assembly 207 are arranged in a continuous spiral arrangement, and the blades of the stirring paddle assembly 207 are in an interference fit relationship with both the first feed pipe 203 and the second feed pipe 205; the blades of the stirring paddle assembly 207 extend from the output shaft of the reduction motor to the inner cavity end of the feed pipe; when the stirring paddle assembly 207 rotates around a fixed axis, the bait will not adhere to the inner side wall of the first feed pipe 203 and the second feed pipe 205 during the process of being stirred and pushed by the blades, thus avoiding the phenomenon of moisture and corruption caused by long-term accumulation.

[0085] Furthermore, the opening directions of the water inlets 111 of all the first water inlet pipes 104 are arranged in a clockwise or counterclockwise manner along the horizontal circle. When water enters the inner cavity of the frame assembly 100 simultaneously from the water inlets 111 of the plurality of first water inlet pipes 104, a clockwise or counterclockwise W2 water flow in the horizontal direction is formed between the water inlets 111 and the guide plate 105 on the side wall of the middle column 102. Impurities such as residual bait and suspended matter S2 are transported to the middle column 102, and then discharged through the overflow pipe 107 from the inside of the middle column 102 along the direction of the W6 water flow as shown in Figure 6 the W6 water flow direction in;

[0086] Further, at least two groups of all the first water inlet pipes 104 are symmetrically distributed about the middle column 102 in a central symmetry manner. Among the two groups of first water inlet pipes 104 that are symmetrically distributed in a central symmetry manner, the water inlet 111 of one group of first water inlet pipes 104 is distributed in the upper part in the vertical direction of its side wall, and the water inlet 111 of the other group of first water inlet pipes 104 is distributed in the lower part in the vertical direction of its side wall; when water enters the inner cavity of the frame assembly 100, a clockwise W4 circulation or counterclockwise W3 circulation water flow is formed in the vertical direction between the water inlet 111 and the flow guide plate 105 on the side wall of the middle column 102, and impurities such as residual baits and suspended matters S2 are gathered along the bottom of the inner cavity of the frame assembly 100, and then are discharged along the W6 water flow shown in Figure 6 through the overflow pipe 107 from the fish outlet 126 at the bottom of the middle column 102;

[0087] Further, the above-mentioned clockwise or counterclockwise W2 water flow in the horizontal direction, counterclockwise W3 water flow in the vertical direction, and clockwise W4 water flow can be formed simultaneously or separately.

[0088] Further, a solenoid valve 108 is installed on the pipeline of the overflow pipe 107, and a fish suction pipe 109 is connected in a bypass manner to the side of the overflow pipe 107, and the external port of the fish suction pipe 109 is adjacent to the position of the aquaculture water surface W1 in the inner cavity of the frame assembly 100; the dead aquatic organisms S1 in the inner cavity of the frame assembly 100 enter the overflow pipe 107 through the fish outlet 126 under the action of water flow and are finally discharged;

[0089] As Figures 13 to 16 shown, the aquaculture pond is placed on an offshore aquaculture ship to realize the aquaculture and catching operations of various types of aquatic organisms.

[0090] A plurality of aquaculture ponds are installed on the upper deck 2002 of the aquaculture ship 2000, and the frame assembly 100 of each aquaculture pond is fixedly connected to the upper deck 2002 separately through the support columns 150 at the bottom; a plurality of aquaculture ponds are also installed on the ship board 2003, and a plurality of frame assemblies 100 are spliced and combined into an integrated aquaculture pond body structure, and the side plates 101 of adjacent frame assemblies 100 can be shared.

[0091] When the aquaculture pond is used for onshore aquaculture, the frame assembly 100 of each aquaculture pond can be used as an independent module and fixedly connected to the ground through the support columns 150. Or as Figure 11 shown, the frame assemblies 100 of a plurality of aquaculture ponds are butted together, and the overlapping surfaces W7, W8, and W9 formed by them can be shared, and the inlet and drain pipes are arranged separately.

[0092] Embodiment 2, as Figure 11The shown aquaculture tank is applied to an aquaculture workboat, shore-based aquaculture or an offshore aquaculture platform. It mainly has a frame assembly formed by sequentially splicing several side plates 101 and a bottom plate, with a sealed cavity inside. Different from Embodiment 1, the frame assembly is a regular cylindrical structure.

[0093] Specifically, a hollow intermediate column 102 is vertically arranged in the inner cavity of the frame assembly 100. A bridge 103 for laying equipment and allowing operators to walk and stand is horizontally connected to the tops of several side plates 101. The bridge 103 is in a cross shape; each end of the bridge 103 is connected to the frame assembly 100 of the workboat or an adjacent aquaculture tank through the side plate 101.

[0094] The other structures are the same as those in the aquaculture method applied to an aquaculture workboat and will not be elaborated here.

[0095] Embodiment 3, as Figure 12 Another structurally designed aquaculture tank shown is applied to an aquaculture workboat, shore-based aquaculture or an offshore aquaculture platform. It mainly has a frame assembly formed by sequentially splicing several side plates 101 and a bottom plate, with a sealed cavity inside.

[0096] Different from Embodiment 1 and Embodiment 2, the frame assembly is a symmetric regular dodecagonal prism structure. The other structures are the same as those in the aquaculture method applied to an aquaculture workboat and will not be elaborated here.

[0097] In summary, the embodiments given in combination with the drawings are only the preferred solutions to achieve the purpose of the present invention. For those skilled in the art, they can get inspiration from this and directly derive other alternative structures that conform to the design concept of the present invention. The other structural features obtained thereby should also fall within the scope of the solutions described in the present invention.

Claims

1. A culture tank, comprising a frame formed by sequentially splicing several side plates and a bottom plate, with a closed cavity inside. Component, characterized in that: A hollow middle column is vertically arranged in the inner cavity of the frame assembly. A bridge is horizontally connected to the tops of several side plates, and each end of the bridge is respectively communicated with the frame assembly of a workboat or an adjacent culture tank through the side plates. Several groups of residual bait through holes are arranged on the side wall of the middle column, and fish outlets are formed in a horizontal circular distribution on the side part at the connection of the middle column and the bottom plate. The top end of the middle column is connected through the bridge, and its bottom end is connected through the bottom plate of the frame assembly and communicated with the water inlet end of an overflow pipe. The water outlet end of the overflow pipe is located outside the frame assembly. A feeding assembly is arranged in the inner cavity of the frame assembly. Several groups of first water inlet pipes are vertically distributed in the inner cavity of the frame assembly. The bottom of the first water inlet pipe is closed and does not contact the bottom plate of the frame assembly. Several groups of water inlets are opened on its side wall. After the culture water enters the first water inlet pipe, it is discharged into the inner cavity of the frame assembly through the water inlets. Several groups of guide plates are symmetrically arranged on the side wall of the middle column along its vertical center line. The feeding assembly is installed and connected to the bridge. The feeding assembly includes a hopper and at least one group of feeding pipes communicating with the hopper. A stirring paddle assembly is arranged along the axial center line inside the feeding pipe. The axial end of the stirring paddle assembly is connected to the output shaft of a reduction motor. Several paddle blades are arranged radially along the stirring paddle assembly. Several feeding ports are arranged axially on the side wall of the first feeding pipe. The paddle blades radially distributed on the stirring paddle assembly are arranged in a continuous spiral pattern, and the paddle blades and the feeding pipe are in clearance fit. The paddle blades of the stirring paddle assembly extend from the output shaft of the reduction motor to the end of the inner cavity of the feeding pipe. For the several groups of first water inlet pipes, their water inlets are at least on a circle of a group of horizontal sections, and the opening directions of the water inlets are arranged in a clockwise or counterclockwise direction. For the several groups of first water inlet pipes, at least two groups are centrally symmetrically distributed along the middle column. Among the two groups of first water inlet pipes that are centrally symmetrically distributed, the water inlets of one group of first water inlet pipes are distributed in the upper part of the side wall in the vertical direction, and the water inlets of the other group of first water inlet pipes are distributed in the lower part of the side wall in the vertical direction. An electromagnetic valve is installed on the pipeline of the overflow pipe. A fish suction pipe is connected in a bypass manner to the side of the overflow pipe. The external port of the fish suction pipe is adjacent to the culture water level in the inner cavity of the frame assembly. Several fish inlet pipes with openings at both ends are connected through the side plates, and their fish inlets are communicated with the inner cavity of the frame assembly.

2. The aquaculture workboat applying the aquaculture bin as described in claim 1, characterized in that: It includes a cabin composed of a hull, an upper deck located at the top of the hull, and a ship plate fixedly connected to the bottom of the inner cavity of the hull. Several culture tanks are installed on the upper deck, and the frame assembly of each culture tank is fixedly connected to the upper deck separately.

3. The breeding workboat according to claim 2, wherein: Several culture tanks are installed on the ship plate, and several frame assemblies are spliced and combined into an integrated culture tank body structure, and the side plates of adjacent frame assemblies are shared.

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