A V-shaped net cage flow blocking facility

Abstract

This utility model relates to the field of aquaculture technology. A herringbone-shaped net cage flow-blocking device includes a herringbone-shaped flow-blocking net formed by two connected net panels; it also includes a buoyancy component installed above the herringbone-shaped flow-blocking net; it further includes an anchoring component, comprising a first anchoring group, which includes a first tension member and a first anchor, the first anchor being connected to the top of the net panel via the first tension member; the anchoring component also includes a second anchoring group, which includes a second tension member for connecting the sides of the net panel and a second anchor, the sides of the net panel being connected to the second anchor via longitudinally arranged second tension members; and it also includes an anti-drift component installed at the bottom of the net panel. This utility model uses a herringbone-shaped flow-blocking net, and simultaneously configures a buoyancy component, an anchoring component, and an anti-drift component, thereby reducing the drift of the net panel in the net cage, protecting the farmed fish in the net cage, and ultimately achieving the purpose of reducing flow in the aquaculture area within the net cage.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a flow-blocking structure. Background Technology

[0002] Cage aquaculture is an intensive modern aquaculture model. Its core facility, the cage, is typically located in open water bodies such as lakes, reservoirs, rivers, nearshore areas, and deep-sea areas. It consists of a frame system, box-shaped netting, and an anchoring system, making full use of the space and natural water flow of natural water bodies. It has advantages such as not occupying land, high aquaculture efficiency, and convenient management. However, this model is also significantly constrained by the fluid environment in which it is situated. Water flow is a double-edged sword in cage aquaculture. Moderate water flow is beneficial for water exchange inside and outside the cage, providing sufficient dissolved oxygen for farmed fish and removing metabolic waste and uneaten feed, maintaining a healthy ecosystem within the cage. However, when the water flow exceeds a certain threshold, it will produce a series of serious negative effects. First, continuously excessive water flow forces farmed fish (such as large yellow croaker and sea bass) to swim against the current for extended periods, consuming a large amount of energy, leading to increased stress response, slower growth, and reduced feed conversion rate, directly causing economic losses. Secondly, strong water currents can severely impact the netting system, especially causing large deformations in flexible netting. This not only reduces the effective space for aquaculture and exacerbates wear and fatigue, but also poses a significant risk of the netting breaking due to friction with the frame, ultimately leading to the escape of farmed organisms. Furthermore, in nearshore areas prone to extreme weather events (such as storm surges and typhoons), the massive water currents and wave loads can even destroy the entire net cage facility, causing catastrophic consequences.

[0003] To address the problem of excessive water flow, current conventional solutions focus on improving the strength and flow resistance of the cage structure itself, such as using higher-strength high-density polyethylene frames, thicker cables, and anchoring systems. However, this is a "passive resistance" strategy, addressing the symptoms but not the root cause, and significantly increases the material and construction costs of the facilities. Another approach is to select bays or sheltered areas with gentle flow fields for aquaculture, but such high-quality water resources are increasingly scarce and may conflict with other marine uses (such as shipping and tourism). Therefore, the industry urgently needs an efficient, economical, and reliable flow-blocking facility for cages. This facility should not simply "rigidly" block the water flow, but should intelligently guide and attenuate the water flow energy, creating a relatively gentle flow field area in front of the cage facing the current, fundamentally improving the aquaculture environment inside the cage. An ideal flow-blocking facility needs to have good structural stability to withstand the impact of wind and waves, while its structural form should minimize disruption to the local flow pattern, avoiding turbulence or secondary pollution of the bottom sedimentary environment. Given the aforementioned industry pain points and technological gaps, developing a new type of cage flow control facility is particularly urgent and necessary. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a herringbone-shaped cage flow-blocking device to solve at least one of the above technical problems.

[0005] To achieve the above objectives, this utility model provides a herringbone-shaped gabion flow-blocking facility, characterized in that it comprises a herringbone-shaped flow-blocking net formed by two connected pieces of netting;

[0006] It also includes a buoyancy component, which is installed above the herringbone-shaped flow barrier;

[0007] It also includes an anchoring component, which includes a first anchoring group located on both sides of the thickness direction of the netting. The first anchoring group includes a first tension member and a first anchor member arranged along the length direction of the netting and used to connect the top of the netting. The first anchor member is connected to the top of the netting through the first tension member.

[0008] The mooring component further includes a second mooring group for pulling the side of the netting. The second mooring group includes a second pulling member for connecting the side of the netting and a second anchor. The side of the netting is connected to the second anchor via the longitudinally arranged second pulling member.

[0009] It also includes an anti-drift component, which is installed at the bottom of the mesh.

[0010] More preferably, the buoyancy component includes floats arranged along the length of the mesh.

[0011] More preferably, the anti-drift component is a counterweight chain, which is arranged along the length of the mesh and fixed to the bottom of the mesh.

[0012] More preferably, the anti-drift component includes at least two counterweight chains arranged vertically, the counterweight chains being arranged along the length of the mesh fabric and fixed to the bottom of the mesh fabric.

[0013] More preferably, two herringbone-shaped flow-blocking nets are provided, with the two herringbone-shaped flow-blocking nets located on both sides of the main upward direction of the reciprocating flow of the net box.

[0014] Further preferably, the length of the longitudinally arranged second tension member decreases from top to bottom.

[0015] Preferably, the two mesh pieces are a first mesh and a second mesh;

[0016] The second anchor is provided in three parts, namely the first end anchor, the second end anchor, and the third end anchor;

[0017] The first end anchor is located at the extension of the first mesh in the length direction and is connected to the side of the first mesh through the second tension member;

[0018] The second end anchor is located outside the connection between the first and second mesh, and is connected to the connection between the first and second mesh via the second tension member;

[0019] The third end anchor is located at the extension of the second mesh in the length direction and is connected to the side of the second mesh through the second tension member.

[0020] More preferably, the first end anchor, the second end anchor, and the third end anchor each include at least three counterweight cement anchors, and adjacent cement anchors are connected by chains or pull ropes.

[0021] More preferably, the second pulling element is a chain or a pulling rope.

[0022] More preferably, the first pulling element is a chain or a pulling rope.

[0023] More preferably, the angle formed between the two mesh panels is 40°-50°.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This utility model uses a herringbone-shaped flow-blocking net, and is equipped with buoyancy components, anchoring components, and anti-drift components, thereby reducing the drift of the netting in the net cage, protecting the fish cultured in the net cage, and ultimately achieving the purpose of reducing the flow in the culture area within the net cage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present utility model;

[0027] Figure 2 This is a partial structural schematic diagram of a specific embodiment 1 of the present utility model;

[0028] Figure 3 This is a partial structural schematic diagram of a specific embodiment 1 of the present utility model.

[0029] In the diagram: 1 is a herringbone-shaped flow-blocking net, 2 is a buoyancy component, 3 is the first mooring group, 4 is the second mooring group, 5 is an anti-drift component, 6 is a net cage, 11 is a net cover, 31 is the first traction component, 32 is the first anchor, 41 is the first end anchor, 42 is the second end anchor, 43 is the third end anchor, and 44 is the second traction component. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] See Figures 1 to 3 Specific Embodiment 1: A herringbone net cage flow-blocking facility includes a herringbone flow-blocking net 1 formed by connecting two pieces of netting 11; it also includes a buoyancy component 2, which is installed above the herringbone flow-blocking net 1; it also includes an anchoring component, which includes a first anchoring group 3 located on both sides in the thickness direction of the netting, the first anchoring group 3 including a first tension member 31 and a first anchor 32 arranged along the length direction of the netting and used to connect the top of the netting, the first anchor 32 being connected to the top of the netting through the first tension member 31; the anchoring component also includes a second anchoring group 4 for pulling the sides of the netting, the second anchoring group 4 including a second tension member 44 and a second anchor 32 for connecting the sides of the netting, the sides of the netting being connected to the second anchor 34 through the longitudinally arranged second tension member 44; it also includes an anti-drift component 5, which is installed at the bottom of the netting.

[0032] The buoyancy component 2 includes floats arranged along the length of the mesh 11.

[0033] The anti-drift component 5 is a counterweight chain, which is set along the length of the mesh 11 and fixed to the bottom of the mesh 11.

[0034] The anti-drift component 5 includes at least two counterweight chains arranged vertically, which are arranged along the length of the mesh 11 and fixed to the bottom of the mesh 11.

[0035] There are two herringbone flow barrier nets 1, which are set on both sides of the main upward direction of the reciprocating flow of the net box 6.

[0036] The length of the longitudinally arranged second tension member 44 decreases from top to bottom.

[0037] The two mesh panels are designated as a first mesh panel and a second mesh panel. Three second anchors are provided: a first end anchor 41, a second end anchor 42, and a third end anchor 43. The first end anchor 41 is located at the extension of the first mesh panel along its length and is connected to the side of the first mesh panel via a second tension member 44. The second end anchor 42 is located outside the connection point between the first and second mesh panels and is connected to the connection point via the second tension member 44. The third end anchor 43 is located at the extension of the second mesh panel along its length and is connected to the side of the second mesh panel via the second tension member 44. Each of the first, second, and third end anchors includes at least three counterweight cement anchors, and adjacent cement anchors are connected by chains or tension ropes. The second tension member 44 is a chain or tension rope.

[0038] The first traction component 31 is a chain or traction rope. The first anchor component 32 is an anchor.

[0039] The angle formed between the two mesh garments is 40°-50°.

[0040] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A chevron net pen flow barrier, characterized in that, Including a herringbone-shaped flow barrier formed by two pieces of mesh joined together; It also includes a buoyancy component, which is installed above the herringbone-shaped flow barrier; It also includes an anchoring component, which includes a first anchoring group located on both sides of the thickness direction of the netting. The first anchoring group includes a first tension member and a first anchor member arranged along the length direction of the netting and used to connect the top of the netting. The first anchor member is connected to the top of the netting through the first tension member. The mooring component further includes a second mooring group for pulling the side of the netting. The second mooring group includes a second pulling member for connecting the side of the netting and a second anchor. The side of the netting is connected to the second anchor via the longitudinally arranged second pulling member. It also includes an anti-drift component, which is installed at the bottom of the mesh.

2. A delta containment device according to claim 1, characterised in that: The buoyancy component includes floats arranged along the length of the mesh.

3. A V-shaped net cage flow barrier according to claim 1, characterized in that: The anti-drift component is a counterweight chain, which is arranged along the length of the mesh and fixed to the bottom of the mesh.

4. A V-shaped net cage flow barrier according to claim 1, characterized in that: The anti-drift component includes at least two counterweight chains arranged vertically, the counterweight chains being arranged along the length of the mesh fabric and fixed to the bottom of the mesh fabric.

5. A V-shaped net cage flow barrier according to claim 1, characterized in that: Two herringbone flow-blocking nets are provided, with each net positioned on one side of the main upward direction of the reciprocating flow of the net box.

6. A V-shaped net cage flow barrier according to claim 1, characterized in that: The length of the second traction member arranged longitudinally decreases from top to bottom.

7. A V-shaped net cage flow barrier according to claim 1, characterized in that: The two mesh panels are the first mesh panel and the second mesh panel, respectively. The second anchor is provided in three parts, namely the first end anchor, the second end anchor, and the third end anchor; The first end anchor is located at the extension of the first mesh in the length direction and is connected to the side of the first mesh through the second tension member; The second end anchor is located outside the connection between the first and second mesh, and is connected to the connection between the first and second mesh via the second tension member; The third end anchor is located at the extension of the second mesh in the length direction and is connected to the side of the second mesh through the second tension member.

8. A chevron net pen flow barrier according to claim 7, wherein: The first end anchor, the second end anchor, and the third end anchor each include at least three counterweight cement anchors, and adjacent cement anchors are connected by chains or pull ropes.

9. A V-shaped net cage flow barrier according to claim 1, characterized in that: The second pulling component is a chain or a pulling rope; The first pulling component is a chain or a pulling rope.

10. A V-shaped net cage flow barrier according to claim 1, characterized in that: The angle formed between the two mesh garments is 40°-50°.

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