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Anchor chain system, with power buffer function, of single-point-anchoring net cage

An anchor chain and mooring technology, applied in the field of anchor chain system, can solve the problems of easy damage to the cage frame and anchoring foundation, and achieve the effects of cheap treatment measures, prevention of friction and mutual entanglement, and simple construction.

Active Publication Date: 2017-11-07
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the length of the anchor chain does not change after it is tightened, the impact load has no buffer energy dissipation, which makes the cage frame and anchoring foundation prone to damage under the action of large wind and waves

Method used

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  • Anchor chain system, with power buffer function, of single-point-anchoring net cage
  • Anchor chain system, with power buffer function, of single-point-anchoring net cage
  • Anchor chain system, with power buffer function, of single-point-anchoring net cage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: the situation of using the primary anchor chain 4 and the secondary anchor chain 5, such as Figure 5 shown. One end of the primary anchor chain 4 is moored on the mooring foundation 8, and the other end is fixedly moored on the mooring ring 3 of the elastic tube 1. The secondary anchor chain 5 passes through the tunnel 2 of the elastic tube 1, and after a plurality of casing pipes 7 are inserted on both sides, the two ends of the secondary anchor chain 5 are fixedly connected with the net cage floating pipe frame 11.

[0054] The resultant force on both sides of the secondary anchor chain 5 is equal to the pulling force of the primary anchor chain 4 , so the tensile force on the secondary anchor chain 5 is smaller than that of the primary anchor chain 4 . Through the mutual connection of the two-stage anchor chains, the stress concentration at the mooring point of the floating pipe frame 11 of the net cage is greatly reduced, and the safety of the floati...

Embodiment 2

[0055] Embodiment 2: the situation of using the first-level anchor chain 4, the second-level anchor chain 5 and the third-level anchor chain 12, such as Figure 6 shown. The connection between the primary anchor chain 4 and the secondary anchor chain 5 is the same as that in Embodiment 1. The three-level anchor chain 12 passes through the tunnel 2 of the elastic tube 1 fixedly connected with the second-level anchor chain 5, and after a plurality of casing pipes 7 are inserted on both sides, the two ends of the three-level anchor chain 12 are connected to the cage floating pipe frame 11 Fixed connection.

[0056] In the present embodiment, there are 4 mooring points on the net cage floating pipe frame 11, and the load of the single-point mooring system is evenly distributed to these 4 mooring points, which obviously greatly reduces the stress concentration at the mooring point and improves The safety of net cage floating pipe framework 11 has been improved.

Embodiment 3

[0057] Embodiment 3: the situation of using the four-level anchor chain, such as Figure 7 shown. On the basis of embodiment 2, one more level of anchor chain is added, and the connection method is the same as above. In the present embodiment, there are 8 mooring points on the net cage floating pipe frame 11, and the load of the single-point mooring system is evenly distributed to these 8 mooring points, which greatly reduces the stress concentration at the mooring points and greatly reduces the stress concentration at the mooring points. Greatly improved the safety of net cage floating pipe frame 11.

[0058] Due to the sliding connection between the anchor chains of all levels and the elastic tube 1, the pulling force is evenly transmitted between the anchor chains of all levels, so that the pulling force suffered by the anchor chains of the same level is basically the same. As in this embodiment, the pulling forces on the two third-level anchor chains 12 are basically equ...

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Abstract

The invention discloses an anchor chain system, with a power buffer function, of a single-point-anchoring net cage. The anchor chain system comprises a plurality of elastic tubes, sleeves and n levels of anchor chains, wherein the middle of each elastic tube is provided with an anchoring ring, one end of the first-level anchor chain in the n levels of anchor chains is anchored to an anchoring foundation, and the other end of the first-level anchor chain is fixedly anchored to the anchoring ring of one elastic tube; one second-level anchor chain is mounted in the duct of the elastic tube connected with the first-level anchor chain in a penetrating manner, and two ends of the second-level anchor chain extends out of the elastic tube and are respectively connected to the anchoring rings of two other elastic tubes; one third-level anchor chain is mounted in the duct of each of the two elastic tubes connected with two ends of the second-level anchor chain in a penetrating manner, two ends of each third-level anchor chain extends out of the corresponding elastic tube and are respectively connected with the anchoring rings of two other elastic tubes, and so on; by the arrangement, the n levels of anchor chains are connected, and two ends of the n levels of anchor chains are anchored to a floating tube frame to form the anchor chain system. The anchor chain system has the advantages that 2n-1 anchoring points are connected with the floating tube frame, stress concentration at each anchoring point can be reduced, large elastic deformation can be achieved, and the power buffer function is provided.

Description

Technical field: [0001] The present invention relates to seawater culture net cages, and more specifically relates to a single-point mooring net cage anchor chain system with power buffering function. Background technique: [0002] Mariculture cages are connected to the mooring foundation on the seabed through anchor chains. The anchor chain plays the role of mooring and fixing the cage, and the wind and wave action on the cage is transmitted to the mooring foundation through the anchor chain. For the anchor chain system of seawater cages, the following two aspects are the focus of attention: [0003] 1. The anchoring method of the anchor chain: [0004] The traditional net cage adopts the multi-point direct anchor method to deal with the influence of the uncertain wind direction on the net cage. For example, the 6 anchor point method adopted by a single cage, one anchor is set every 60 degrees, no matter which direction the wind comes from, there will be at least 2 ancho...

Claims

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Application Information

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IPC IPC(8): A01K61/65
CPCA01K61/65Y02A40/81
Inventor 刘洁群刘金龙
Owner HEFEI UNIV
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