Stepped ship-shaped net cage system

Abstract

The invention discloses a ship-shaped net cage system in the technical field of sea area culture, in particular to a stepped ship-shaped net cage system, which is characterized in that a bow system is arranged on the incident flow side of a square frame system, and the bow system and the square frame system are linearly arranged and mutually fixed; the bow system is provided with a structure for blocking a water flow part flowing through the bow system; the square frame system is divided into a plurality of square frame units; the netting system corresponding to each square frame unit encloses an independent square net cage culture area, and the depths of all the square net cage culture areas are gradually reduced from the near end to the far end of the bow system. According to the ship-shaped net cage system, the technical purpose of improving the breeding effect of the ship-shaped net cage system is achieved. In the system design, the factors that turbulent flow is generated due to different flow speeds and the diffusion range of the turbulent flow is in direct proportion to the distance are fully considered, the depth of the square net cage culture area farther away from a bow system (a turbulent flow generation place) is designed to be smaller, and the influence of turbulent flow diffusion on net cage culture is avoided to the maximum extent.

Description

Technical Field

[0001] The present invention relates to a ship-shaped cage system in the technical field of marine aquaculture, in particular to a stepped ship-shaped cage system. Background Art

[0002] In recent years, my country has paid more and more attention to marine resources, and paid special attention to the importance of building marine ecological pastures and realizing the "blue granary". As an important application of marine aquaculture, the ship-type cage system has an important significance in the utilization of marine resources.

[0003] In the actual use of the ship-type cage system in the sea, when the water flows through the bow system, the water flow rate of the water flow part that is blocked by the bow system will be significantly lower than the initial flow rate, while the water flow part of the space below the bow system has not been blocked by the bow system, so the water flow rate has not dropped too much compared with the initial flow rate, resulting in a significant speed difference between the two parts of the water flow. Considering that the flow rate of the liquid is inversely proportional to the pressure, and the liquid always flows from the area with high pressure to the area with low pressure, that is, from the back of the bow to the bottom of the bow, turbulence occurs at the interface of the above two parts of the water flow, and the farther away from the bow system, the greater the range of the turbulence diffusion phenomenon, and the impact of the uncertain direction of turbulence on the aquaculture of the ship-type cage system cannot be ignored.

[0004] However, the above unfavorable factors have not been fully considered in the system design of the traditional ship-type cage system. In order to maximize the volume of the aquaculture area of ​​the ship-type cage system, the aquaculture depths of different square cage aquaculture areas are kept consistent, resulting in serious turbulence at the bottom of the square cage aquaculture area at the far end of the bow system, and unsatisfactory aquaculture results.

[0005] Therefore, the applicant proposed the present invention. Summary of the invention

[0006] The purpose of the present invention is to solve the deficiencies of the above-mentioned prior art and fully consider the factors that affect the aquaculture of the ship-type cage system, such as turbulence caused by different flow rates, and the diffusion range of turbulence is proportional to the distance, and a stepped ship-type cage system is designed.

[0007] In order to achieve the above-mentioned purpose, the present invention designs a stepped ship-shaped cage system, including a square frame system, a net system, a counterweight system and a single-point mooring system, wherein: A bow system is provided on the flow-facing side of the square frame system, and the two are arranged in a line and fixed to each other; the bow system is provided with a structure for blocking the water flow passing through the bow system; The square frame system is divided into a plurality of square frame units; the net system corresponding to each square frame unit encloses an independent square cage culture area, and the depth of all square cage culture areas decreases step by step from the proximal end to the distal end of the bow system; The weight system is connected to the bottom of the net system and distributed along the outer contour of the net system; The single point mooring system is located on the flow side of the bow system and is interconnected with the bow system.

[0008] The ship-type cage system of the present invention fully considers the turbulence caused by different flow rates in its system design, and the factors that the diffusion range of the turbulence is proportional to the distance. The depth of the square cage culture area that is farther away from the bow system (where the turbulence occurs) is designed to be smaller, thereby avoiding the influence of turbulence diffusion on cage culture to the greatest extent, thereby improving the culture effect of the ship-type cage system.

[0009] In addition, the system is designed so that water can flow through the bow system and toward the net system, taking away the excrement and residual bait produced by the farmed organisms (fish, shrimp, crab and other marine aquatic products) in the net system, and bringing in new nutrients; at the same time, the bow system is provided with a structure for blocking the water flow passing through the bow system, so as to control the flow velocity of the water after passing through the bow system, thereby maintaining a flow velocity suitable for the survival of the farmed organisms.

[0010] Preferably, in the above-mentioned stepped ship-shaped cage system, the depth of the square cage breeding area near the bow system is close to the draft depth d of the bow system; and the depth of the square cage breeding area far from the bow system is close to d / 2.

[0011] The above-mentioned preferred technical solution can avoid the impact of turbulent diffusion on the aquaculture areas of different square cages to the greatest extent, and at the same time the volume of the aquaculture areas of different square cages in the ship-type cage system can be maximized.

[0012] The structure of the stepped ship-shaped cage system, in which the structure on the bow system for blocking the water flow passing through the bow system, preferably includes: an impeller device; A channel one is formed on the main body of the bow system to pass through the upstream side and the downstream side of the main body. The impeller device is installed in the channel one, and the impeller assembly of the impeller device is driven by the water flowing through the channel one to rotate.

[0013] Furthermore, the impeller device is preferably selected to include an S-shaped impeller assembly and a screw clamping mechanism for controlling the S-shaped impeller assembly to switch between self-rotation and locking states.

[0014] The baffle structure in the above-mentioned preferred technical solution adopts an impeller device, which can not only block the flow and reduce waves, but also collect part of the mechanical energy (kinetic energy, potential energy, etc. of the water flow) and convert it into electrical energy by adding a power generation system, so as to facilitate the ship-type cage system to achieve self-power supply and achieve the purpose of energy saving and emission reduction.

[0015] At the same time, the lead screw clamping mechanism controls the S-shaped impeller assembly to switch between self-rotation and locking states, so as to adapt to different sea conditions. For example, when the sea is rough and the seawater flow rate is high, the lead screw clamping mechanism can lock the S-shaped impeller assembly, stop the S-shaped impeller assembly from rotating, and increase the overall wave resistance and flow reduction capability of the bow system.

[0016] Furthermore, in the above-mentioned stepped ship-shaped cage system, the structure on the bow system for blocking the water flow passing through the bow system is preferably selected to include: a guide plate and a push rod or a cylinder; The guide plate is located on the flow-facing side of channel one, and is hinged to a pair of hinged arms extending outward from the main body through a hinge shaft, and becomes the outward extension of channel one. A push rod or a cylinder is hinged to the main body and is transmission-connected to the guide plate to drive the guide plate to rotate around the hinge shaft to change the angle between the guide surface of the guide plate and the bottom surface of channel one, thereby increasing the opening degree of the channel one opening by increasing the angle.

[0017] The guide plate in the above preferred technical solution can change the angle between the guide surface of the guide plate and the bottom surface of channel one by self-rotation, and then increase the angle to increase the opening degree of channel one, and vice versa. Therefore, when the ship-type cage system is normally on the sea surface, the wind and waves are small, and the water flow velocity is low, by increasing the opening degree of channel one, the frontal area of ​​channel one can be increased, which plays a role in collecting flow, improving the power generation efficiency of the impeller device, and generating more electricity; on the contrary, when the wind and waves are relatively large at sea, by reducing the opening degree of channel one, the frontal area of ​​channel one can be reduced, which plays a role in reducing flow.

[0018] Furthermore, in the above-mentioned stepped ship-shaped cage system, the structure of the bow system for blocking the water flow passing through the bow system is preferably selected to include: a flow reducing plate and a push rod or a cylinder; Channel 2 is formed on the main body of the bow system and is located on both sides of channel 1, and is also used to penetrate the upstream side and the downstream side of the main body. The flow reducer is located in channel 2, and a hinged seat is formed on the flow reducer. Push rod or cylinder 2 is hinged to the main body, and the end of the transmission rod of the push rod or cylinder 2 forms a hinged head and is transmission-connected to the hinged seat of the flow reducer to drive the flow reducer to rotate around the hinge center to change the actual water flow path size of channel 2.

[0019] The flow reduction plate in the above preferred technical solution can change the actual water flow path size of channel two by self-rotation, so as to further facilitate the adjustment of the flow blocking and wave reduction capabilities of the bow system according to different actual sea conditions (wind and waves, water flow size, etc.).

[0020] At the same time, in order to prevent large-area floating objects in the water flow (such as water plants, plastic garbage, etc.) from adhering to the flow reduction plate or the net system after passing through channel two, thereby increasing the difficulty of cleaning the ship-type cage system, the above-mentioned stepped ship-type cage system has a structure in which the opening of channel two facing the upstream side is provided with an interception net, and large-area floating objects in the water flow will be caught by the interception net before flowing through channel two.

[0021] At the same time, in order to improve the anti-tilt performance of the bow system, that is, to improve the working stability of the bow system, the above-mentioned stepped ship-shaped cage system has a structure in which anti-roll plates extending outward are formed on both sides of the main body of the bow system.

[0022] Compared with the prior art, the stepped ship-shaped cage system obtained by the present invention has the following technical effects: The ship-type cage system of the present invention fully considers the turbulence caused by different flow rates and the fact that the diffusion range of the turbulence is proportional to the distance in its system design. The depth of the square cage culture area that is farther away from the bow system (where the turbulence occurs) is designed to be smaller, thereby avoiding the influence of turbulence diffusion on cage culture to the greatest extent.

[0023] The ship-shaped cage system of the present invention is designed so that water can flow through the bow system and flow to the net system, taking away the excrement and residual bait produced by the cultured organisms (fish, shrimp, crab and other marine aquatic products) in the net system, and bringing in new nutrients; at the same time, the bow system is provided with a structure for blocking the water flow part flowing through the bow system, so as to control the flow velocity of the water after flowing through the bow system, thereby maintaining a flow velocity suitable for the survival of the cultured organisms.

[0024] The ship-shaped cage system of the present invention can not only block the flow and reduce waves, but also collect the mechanical energy (kinetic energy and potential energy of the water flow) and convert it into electrical energy by adding a power generation system, so as to facilitate the ship-shaped cage system to realize self-power supply and achieve the purpose of energy saving and emission reduction. At the same time, it can adaptively adjust the energy capture efficiency according to the real-time sea conditions under the water flow field conditions that meet the cage culture.

[0025] The ship-shaped cage system of the present invention has an overall flow blocking and wave reduction performance of the bow system which can be adaptively adjusted according to different real-time sea conditions, so the flow blocking and wave reduction effects are excellent.

[0026] The ship-shaped cage system of the present invention has a reasonable structural design and also has the functions of intercepting large-area floating objects in the water flow and preventing the bow system from tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a stepped ship-shaped cage system; Figure 2 It is a structural diagram of the bow system; Figure 3 It is a perspective structural diagram of the bow system; Figure 4 yes Figure 3 Partial cross-sectional view at AA in the middle; Figure 5 yes Figure 3 Partial cross-sectional view at the middle BB; Figure 6 It is a schematic diagram of the structure of the impeller device; Figure 7 It is a schematic diagram of the connection structure between the flow reducing plate and the push rod or cylinder 2.

[0028] In the figure: square frame system 1, net system 2, counterweight system 3, single point mooring system 4, bow system 5, main body 5-1, channel one 5-2, channel two 5-3, impeller device 6, S-shaped impeller assembly 6-1, screw clamping mechanism 6-2, guide plate 7, push rod or cylinder one 8, articulated shaft 9, articulated support arm 10, flow reduction plate 11, articulated seat 11-1, push rod or cylinder two 12, articulated head 12-1, interception net 13, anti-roll plate 14. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0030] like Figure 1-7 As shown, as an embodiment of the present invention, a stepped ship-shaped cage system provided in this embodiment includes a square frame system 1, a net system 2, a counterweight system 3 and a single-point mooring system 4, wherein: A bow system 5 is provided on the flow-facing side of the square frame system 1, and the two are arranged in a line and fixed to each other; the bow system 5 is provided with a structure for blocking the water flow passing through the bow system 5; The square frame system 1 is divided into a plurality of square frame units; the net system 2 corresponding to each square frame unit encloses an independent square cage culture area, and the depth of all square cage culture areas decreases step by step from the proximal end to the distal end of the bow system 5; The weight system 3 is connected to the bottom of the net system 2 and is distributed along the outer contour of the net system 2; The single point mooring system 4 is located on the upstream side of the bow system 5 and is interconnected with the bow system 5 .

[0031] The structure on the bow system 5 of this embodiment for blocking the water flow passing through the bow system 5 includes: an impeller device 6; A channel 5-2 is formed on the main body 5-1 of the bow system 5 to pass through the upstream side and the downstream side of the main body 5-1. The impeller device 6 is installed in the channel 5-2. The impeller assembly of the impeller device 6 is driven by the water flowing through the channel 5-2 to rotate.

[0032] The impeller device 6 includes an S-shaped impeller assembly 6-1 and a screw clamping mechanism 6-2 for controlling the S-shaped impeller assembly 6-1 to switch between self-rotation and locking states.

[0033] Guide plate 7 and push rod or cylinder 8; The guide plate 7 is located on the flow-up side of the channel 5-2, and is hinged to a pair of hinged arms 10 extending outward from the main body 5-1 through a hinge shaft 9, and becomes the outward extension of the channel 5-2. The push rod or cylinder 8 is hinged to the main body 5-1 and is transmission-connected to the guide plate 7 to drive the guide plate 7 to rotate around the hinge shaft 9 to change the angle between the guide surface of the guide plate 7 and the bottom surface of the channel 5-2, thereby increasing the opening degree of the channel 5-2 opening by increasing the angle.

[0034] and, a flow reducing plate 11 and a push rod or a cylinder 2 12; A channel 2 5-3 is formed on the main body 5-1 of the bow system 5 and is located on both sides of the channel 1 5-2, and is also used to penetrate the upstream side and the downstream side of the main body 5-1. The flow reducer 11 is located in the channel 2 5-3, and a hinged seat 11-1 is formed on the flow reducer 11. A push rod or a cylinder 2 12 is hinged to the main body 5-1, and a transmission rod end of the push rod or the cylinder 2 12 forms a hinged head 12-1, and is transmission-connected to the hinged seat 11-1 of the flow reducer 11, so as to drive the flow reducer 11 to rotate around the hinge center to change the actual water flow path size of the channel 2 5-3.

[0035] The above-mentioned flow-blocking structure adopts an impeller device 6, which can not only block the flow and reduce waves, but also collect part of the mechanical energy (kinetic energy, potential energy, etc. of the water flow) and convert it into electrical energy by adding a power generation system, so as to facilitate the ship-type cage system to achieve self-power supply and achieve the purpose of energy saving and emission reduction.

[0036] At the same time, the lead screw clamping mechanism 6-2 controls the S-shaped impeller assembly 6-1 to switch between the self-rotation and locking states, so as to adapt to different sea conditions. For example, when the sea waves are relatively large and the seawater flow rate is high, the lead screw clamping mechanism 6-2 can lock the S-shaped impeller assembly 6-1, so that the S-shaped impeller assembly 6-1 stops rotating, thereby increasing the overall wave resistance and flow reduction capability of the bow system 5.

[0037] The guide plate 7 in the above-mentioned baffle structure can change the angle between the guide surface of the guide plate 7 and the bottom surface of the channel 1 5-2 by rotating, and then increase the angle to increase the opening degree of the channel 1 5-2 opening, otherwise reduce the opening degree of the channel 1 5-2 opening. Therefore, when the ship-type cage system is normally on the sea surface, the wind and waves are small, and the water flow velocity is low, by increasing the opening degree of the channel 1 5-2 opening, the frontal area of ​​the channel 1 5-2 can be increased, which plays a role in collecting flow, improving the power generation efficiency of the impeller device 6, and generating more electricity; on the contrary, when the wind and waves are relatively large at sea, by reducing the opening degree of the channel 1 5-2 opening, the frontal area of ​​the channel 1 5-2 can be reduced, which plays a role in reducing flow.

[0038] The flow reducing plate 11 in the above-mentioned flow-blocking structure can change the actual water flow path size of the channel 2 5-3 by rotating, so as to further facilitate the adjustment of the flow-blocking and wave-breaking capabilities of the bow system 5 according to different actual sea conditions (wind and waves, water flow size, etc.).

[0039] In this embodiment, the depth of the square cage culture area near the bow system 5 is close to the draft depth d of the bow system 5; while the depth of the square cage culture area far from the bow system 5 is close to d / 2. This design can avoid the influence of turbulent diffusion on the culture areas of different square cages to the greatest extent, and at the same time, the volume of the culture areas of different square cages in the ship-shaped cage system can be maximized.

[0040] At the same time, in order to prevent large-area floating objects (such as water plants, plastic garbage, etc.) in the water flow from adhering to the flow reduction plate 11 or the net system 2 after passing through channel two 5-3, thereby increasing the difficulty of cleaning the ship-type cage system, the opening of channel two 5-3 facing the upstream side is provided with an interception net 13 in this embodiment, and large-area floating objects in the water flow will be caught by the interception net 13 before flowing through channel two 5-3.

[0041] At the same time, in order to improve the anti-tilting performance of the bow system 5, that is, to improve the working stability of the bow system 5, anti-rolling plates 14 extending outward are formed on both sides of the main body 5-1 of the bow system 5 described in this embodiment.

[0042] The ship-shaped cage system provided in this embodiment has fully considered the turbulence caused by different flow rates in its system design, and the factor that the diffusion range of the turbulence is proportional to the distance. The depth of the square cage culture area is designed to be smaller as it is farther away from the bow system 5 (where the turbulence occurs), so as to avoid the influence of turbulence diffusion on cage culture to the greatest extent.

[0043] In addition, in the system design, the water flow can flow through the bow system 5 and flow to the net system 2, taking away the excrement and residual bait produced by the farmed organisms (fish, shrimp, crab and other marine aquatic products) in the net system 2, and bringing in new nutrients; at the same time, the bow system 5 is provided with a structure for blocking the water flow passing through the bow system 5, so as to control the flow rate of the water after passing through the bow system 5, thereby maintaining a flow rate suitable for the survival of the farmed organisms.

[0044] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A stepped ship-shaped cage system, comprising a square frame system, a net system, a counterweight system and a single-point mooring system, characterized in that: A bow system is provided on the flow-facing side of the square frame system, and the two are arranged in a line and fixed to each other; the bow system is provided with a structure for blocking the water flow passing through the bow system; The square frame system is divided into a plurality of square frame units; the net system corresponding to each square frame unit encloses an independent square cage culture area, and the depth of all square cage culture areas decreases step by step from the proximal end to the distal end of the bow system; The weight system is connected to the bottom of the net system and distributed along the outer contour of the net system; The single point mooring system is located on the flow side of the bow system and is interconnected with the bow system.

2. The stepped ship-shaped cage system according to claim 1, characterized in that: The depth of the square cage culture area at the proximal end of the bow system is close to the draft depth d of the bow system; while the depth of the square cage culture area at the distal end of the bow system is close to d / 2.

3. A stepped boat-shaped cage system according to claim 1 or 2, characterized in that The structure on the bow system for blocking the water flow passing through the bow system includes: an impeller device; A channel one is formed on the main body of the bow system to pass through the upstream side and the downstream side of the main body. The impeller device is installed in the channel one, and the impeller assembly of the impeller device is driven by the water flowing through the channel one to rotate.

4. The stepped ship-shaped cage system according to claim 3, characterized in that: The impeller device comprises an S-shaped impeller assembly and a screw clamping mechanism for controlling the S-shaped impeller assembly to switch between a self-rotating state and a locking state.

5. The stepped ship-shaped cage system according to claim 3, characterized in that The structure on the bow system for blocking the water flow passing through the bow system also includes: a guide plate and a push rod or a cylinder; The guide plate is located on the flow-facing side of channel one, and is hinged to a pair of hinged arms extending outward from the main body through a hinge shaft, and becomes the outward extension of channel one. A push rod or a cylinder is hinged to the main body and is transmission-connected to the guide plate to drive the guide plate to rotate around the hinge shaft to change the angle between the guide surface of the guide plate and the bottom surface of channel one, thereby increasing the opening degree of the channel one opening by increasing the angle.

6. A stepped ship-shaped cage system according to claim 4, characterized in that The structure on the bow system for blocking the water flow passing through the bow system also includes: a guide plate and a push rod or a cylinder; The guide plate is located on the flow-facing side of channel one, and is hinged to a pair of hinged arms extending outward from the main body through a hinge shaft, and becomes the outward extension of channel one. A push rod or a cylinder is hinged to the main body and is transmission-connected to the guide plate to drive the guide plate to rotate around the hinge shaft to change the angle between the guide surface of the guide plate and the bottom surface of channel one, thereby increasing the opening degree of the channel one opening by increasing the angle.

7. The stepped ship-shaped cage system according to claim 5, characterized in that The structure on the bow system for blocking the water flow passing through the bow system also includes: a flow reducing plate and a push rod or a second cylinder; Channel 2 is formed on the main body of the bow system and is located on both sides of channel 1, and is also used to penetrate the upstream side and the downstream side of the main body. The flow reducer is located in channel 2, and a hinged seat is formed on the flow reducer. Push rod or cylinder 2 is hinged to the main body, and the end of the transmission rod of the push rod or cylinder 2 forms a hinged head and is transmission-connected to the hinged seat of the flow reducer to drive the flow reducer to rotate around the hinge center to change the actual water flow path size of channel 2.

8. The stepped ship-shaped cage system according to claim 6, characterized in that The structure on the bow system for blocking the water flow passing through the bow system also includes: a flow reducing plate and a push rod or a second cylinder; Channel 2 is formed on the main body of the bow system and is located on both sides of channel 1, and is also used to penetrate the upstream side and the downstream side of the main body. The flow reducer is located in channel 2, and a hinged seat is formed on the flow reducer. Push rod or cylinder 2 is hinged to the main body, and the end of the transmission rod of the push rod or cylinder 2 forms a hinged head and is transmission-connected to the hinged seat of the flow reducer to drive the flow reducer to rotate around the hinge center to change the actual water flow path size of channel 2.

9. The stepped ship-shaped cage system according to claim 8, characterized in that: An opening of the second channel facing the upstream side is provided with an interception net.

10. The stepped ship-shaped cage system according to claim 9, characterized in that: Anti-roll plates extending outward are formed on both sides of the main body of the bow system.

Images