Anchoring system suitable for medium and high sea shellfish culture longline hanging culture facility

Abstract

The anchoring system comprises iron anchors, iron chains, two groups of cement piers, floating stems and broken ropes, the cement piers are arranged on the seabed at intervals, each group of cement piers are connected with the iron anchors embedded and fixed on the seabed through the iron chains, the floating stems float on the sea surface, and the broken ropes are connected with the cement piers through the iron chains. The two groups of cement piers are respectively connected with two ends of the floating stem through ropes, and floaters and breeding cages are arranged on the floating stem at intervals. According to the anchoring system, the cement piers and the iron anchors are organically combined, the cement piers can bear large vertical loads, the iron anchors are suitable for complex sea areas and can provide large anchoring force, the cement piers and the iron anchors supplement each other, random wind wave loads and ocean current shaking can be borne, and the problems of overturning and displacement are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sea shellfish culture, in particular to an anchoring system suitable for longline culture facilities of sea shellfish culture. Background Art

[0002] In longline shellfish aquaculture operations in the mid- and deep-sea areas (water depths exceeding 15 meters), the anchoring of the longlines at both ends requires specialized piling vessels, facilities, and personnel at sea, significantly impacting the safety and sustainability of aquaculture. Existing anchoring methods for marine aquaculture include iron anchors, wooden pile anchors, and concrete pier anchors. Iron anchors, inspired by ship anchoring methods, are cast. The anchor force is proportional to the weight of the anchor, but obtaining sufficient anchoring force requires significant investment. Heavy iron anchors require specialized vessels and are difficult to position. While suitable for complex seabeds, they are costly and complex to operate. Wooden pile anchors are relatively inexpensive and can require a pile diameter greater than 40 cm, a depth exceeding 4.5 m, and an angle between the anchor line and the seabed no greater than 17°. However, their construction quality is difficult to guarantee and they are susceptible to corrosion, making them suitable only for shallow, muddy seabeds. Concrete pier anchors are moderately priced, and their anchor force is proportional to their weight. While a popular anchoring method for cages, they suffer from numerous uses, scattered deployment, low-quality individual anchor points, and the limited adhesion to the seabed in adverse sea conditions, which can easily cause the anchor to drift. Although professional equipment and personnel are currently available for operations, the workers rely solely on their hand feeling to determine the anchoring situation, resulting in unstable anchoring effects. This not only increases the cost of offshore aquaculture infrastructure construction, but also hinders the development of COSCO's shellfish aquaculture industry because the aquaculture facilities may loosen and shift. Therefore, the traditional anchoring foundation needs to be improved according to geological conditions and anchoring force requirements. Utility Model Content

[0003] In view of this, the present invention proposes an anchoring system suitable for longline suspension facilities for shellfish aquaculture in the middle and deep seas, so as to improve the anchoring effect of the anchoring system while reducing the cost of anchoring construction.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An anchoring system suitable for longline culture facilities for shellfish aquaculture in mid- and offshore waters comprises an iron anchor, an iron chain, a cement pier, a floating stem and a spur rope. The cement piers are in two groups and are placed at intervals on the seabed. Each group of cement piers is connected to an iron anchor embedded in the seabed via an iron chain. The floating stem floats on the sea surface. The two groups of cement piers are respectively connected to the two ends of the floating stem via a spur rope. Floats and culture cages are provided at intervals on the floating stem.

[0006] In order to better implement the above technical solution, optionally, the oblique pulling angle formed by the pull rope and the seabed is 8°-15°.

[0007] Optionally, the length of the rigging rope is 2.5 times the water depth of the floating stem.

[0008] Optionally, the length of the iron chain is 20m-30m and the diameter is 20mm-25mm.

[0009] Optionally, the iron anchor is a 240kg Speck anchor.

[0010] Optionally, the floating stem is a polyethylene three-strand rope with a diameter of not less than 20 mm.

[0011] Optionally, the rope is a polyethylene three-strand rope with a diameter of not less than 18 mm.

[0012] Optionally, the cement pier is cylindrical and weighs not less than 500 kg.

[0013] Optionally, the float is a 45L teardrop-shaped ocean buoy.

[0014] Optionally, the breeding cage is a multi-layer cage.

[0015] Beneficial effects of the utility model:

[0016] The anchoring system of the present invention utilizes the characteristics of cement piers that can withstand large vertical loads, and the characteristics of iron anchors that can be used in sea areas with more complex seabeds and provide greater anchoring force, and organically combines the two, so that the anchoring system can give full play to their respective strengths when facing the complex and changeable marine environment of the mid-sea and far-reaching seas. The cement piers share the vertical pressure for the entire system, reducing the vertical force of wind and waves on the iron anchors, while the iron anchors provide reliable horizontal tension for the system under complex seabed geological conditions. The two complement each other. As a result, the longline suspension culture facility can withstand large random wind and wave loads from different directions and the shaking caused by complex ocean currents, effectively avoiding the overturning and displacement of the culture facility due to excessive wind and waves. At the same time, it also has the characteristics of a wide range of applicability. It is applicable to seabeds with sand, mud or mixed geology, and has a simple structure, convenient construction, and strong anti-overturning ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an anchoring system for a longline culture facility for shellfish aquaculture in the middle and deep seas according to an embodiment of the present invention;

[0018] Reference numerals:

[0019] Anchor 1, iron chain 2, cement pier 3, float 4, breeding cage 5, floating stem 6, and tie rope 7. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments, wherein the same components are represented by the same reference numerals.

[0021] See also Figure 1The embodiment of the utility model discloses an anchoring system suitable for longline culture facilities of mid-sea shellfish culture, including an anchor 1, an iron chain 2, a cement pier 3, a float 4, a culture cage 5, a floating stem 6 and a rope 7.

[0022] Specifically, there are two groups of cement piers 3, which are placed at intervals on the seabed. Each group of cement piers 3 is fixed to an anchor 1 embedded in the seabed through an iron chain 2. The floating stem 6 floats on the sea surface. The two groups of cement piers 3 are respectively connected to the two ends of the floating stem 6 through a tie rope 7. Floats 4 and breeding cages 5 are provided at intervals on the floating stem 6.

[0023] The anchoring system of the embodiment of the present invention utilizes the characteristics of the cement pier 3 being able to withstand large vertical loads, and the characteristics of the iron anchor 1 being able to be used in relatively complex seabed areas and provide a large anchoring force, and organically combines the two, so that the anchoring system can give full play to their respective strengths when facing the complex and changeable marine environment of the mid-sea and far-sea. The cement pier 3 shares the vertical pressure for the entire system, reducing the vertical force of wind and waves on the iron anchor 1, while the iron anchor 1 provides reliable horizontal tension for the system under complex seabed geological conditions. The two complement each other. As a result, the longline suspension culture facility can withstand large random wind and wave loads from different directions and the shaking caused by complex ocean currents, effectively avoiding the overturning and displacement problems of the culture facility due to excessive wind and waves. At the same time, it also has the characteristics of a wide range of applications, and can be applied to seabeds of sandy, muddy or mixed geology, and has a simple structure, convenient construction, and strong anti-overturning ability.

[0024] In an embodiment of the present invention, the total length of the floating stem 6 is 100m. The floating stem 6 adopts a polyethylene three-strand rope with a diameter of not less than 20mm. The anchor 1 is a 240kg Speck anchor. The cement pier 3 is preferably cylindrical and weighs not less than 500kg. The skewer 7 is a polyethylene three-strand rope with a diameter of not less than 18mm. The length of the skewer 7 is 2.5 times the water depth of the floating stem 6. The oblique angle formed by the skewer 7 and the seabed is 8°-15°. The skewer 7 can provide enough space for the floating stem 6 to float. Specifically, when wind and waves come, the floating of the floating stem 6 transmits force to the cement pier 3 and the anchor 1 through the skewer 7. Since the skewer 7 is inclined, the decomposition of the force makes the cement pier 3 and the anchor 1 close to the horizontal tension. This horizontal tension is balanced with the gripping force of the anchor 1, reducing the damage to the anchoring system caused by the vertical impact force. Moreover, the iron chain 2 is heavy and can effectively buffer the tension from the tide and reduce the burden on the iron anchor 1.

[0025] In an embodiment of the present invention, the length of the iron chain 2 is 20m-30m and the diameter is 20mm-25mm. When impacted by wind and waves, part of the iron chain 2 is dragged on the seabed to provide friction, which can further alleviate the burden of the anchor 1. At the same time, it can ensure that the anchor claws of the anchor 1 grasp the seabed and increase the grip, so that the anchoring system remains stable under the complex conditions of tidal fluctuations and superposition of wind and waves.

[0026] In an embodiment of the present invention, the float 4 is a 45L teardrop-shaped ocean buoy, and the breeding cage 5 is a multi-layer cage. As an option, the breeding cage 5 has eight layers, a diameter of 300 mm, and a layer height of 200 mm.

[0027] The utility model is an anchoring system suitable for longline aquaculture facilities for shellfish in the mid-sea. It does not require the use of professional piling vessels, piling facilities and equipment, or the employment of professional workers, which greatly reduces the number of construction workers and thus saves a lot of labor costs. The entire construction process can be completed by the crane arm, which is easy and safe to operate. During the construction process, since there is no need for complicated piling operations, various safety risks that may be caused by piling operations at sea are avoided. At the same time, the anchoring system has the characteristics of double insurance. On the one hand, the cement pier 3 provides stable vertical support, and on the other hand, the iron anchor 1 ensures the horizontal anchoring force. The two work together to achieve a good anchoring effect, reduce the frequency of maintenance and replacement of aquaculture facilities due to anchor failure, and thus extend the service life, bringing long-term economic benefits to farmers.

[0028] The above-mentioned technical scheme of the present invention is described in detail with reference to specific embodiments. The specific embodiments described are used to help understand the concept of the present invention. Derivations and modifications made by those skilled in the art based on the specific embodiments of the present invention also fall within the scope of protection of the present invention.

Claims

1. An anchoring system suitable for longline aquaculture facilities for mid-sea shellfish, comprising an anchor (1), an iron chain (2), a cement pier (3), a floating stem (6) and a scissor rope (7), characterized in that: The cement piers (3) are divided into two groups and are placed at intervals on the seabed. Each group of cement piers (3) is fixed to an anchor (1) embedded in the seabed via an iron chain (2). The floating stem (6) floats on the sea surface. The two groups of cement piers (3) are connected to the two ends of the floating stem (6) via a rope (7) respectively. Floats (4) and breeding cages (5) are arranged at intervals on the floating stem (6).

2. The anchoring system suitable for longline aquaculture facilities in the mid-sea and offshore shellfish farming according to claim 1, characterized in that: The oblique pulling angle formed between the pull rope (7) and the seabed is 8°-15°.

3. The anchoring system suitable for longline culture facilities for shellfish aquaculture in the ocean according to claim 2, characterized in that: The length of the sling rope (7) is 2.5 times the water depth of the floating stem (6).

4. The anchoring system suitable for longline aquaculture facilities for mid-sea shellfish aquaculture according to claim 2, characterized in that: The length of the iron chain (2) is 20m-30m, and the diameter is 20mm-25mm.

5. The anchoring system suitable for longline aquaculture facilities for mid-sea shellfish according to claim 4, characterized in that: The iron anchor (1) is a 240kg Speck anchor.

6. The anchoring system suitable for longline aquaculture facilities in the mid-sea and offshore shellfish farming according to claim 1, characterized in that: The floating stem (6) is a polyethylene three-strand rope with a diameter of not less than 20 mm.

7. The anchoring system suitable for longline aquaculture facilities in the mid-sea and offshore shellfish aquaculture according to claim 1, characterized in that: The rope (7) is a polyethylene three-strand rope with a diameter of not less than 18 mm.

8. The anchoring system suitable for longline aquaculture facilities in the mid-sea and offshore shellfish farming according to claim 1, characterized in that: The cement pier (3) is cylindrical and weighs no less than 500 kg.

9. The anchoring system suitable for longline culture facilities for shellfish aquaculture in the ocean according to claim 1, characterized in that: The float (4) is a 45L teardrop-shaped ocean buoy.

10. The anchoring system suitable for longline culture facilities for shellfish aquaculture in the ocean according to claim 1, characterized in that: The breeding cage (5) is a multi-layer cage.

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