Down-flow type anti-flow net cage

A technology of cages and diverters, applied in fish farming, application, climate change adaptation, etc., can solve the problems of large longitudinal traction force, unbalanced lateral force, and anchoring of wedge-shaped diverters, so as to reduce the risk of anchoring, The effect of balanced traction and reduced construction requirements

Active Publication Date: 2015-03-11
ZHEJIANG OCEAN UNIV
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Problems solved by technology

However, the longitudinal traction force of the wedge-shaped shunt is too large, the lateral for

Method used

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  • Down-flow type anti-flow net cage
  • Down-flow type anti-flow net cage
  • Down-flow type anti-flow net cage

Examples

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Embodiment

[0021] Example: refer to Figure 1 to Figure 3 , a downstream anti-flow net cage, including a rectangular floating tube 1 located on the top of the net cage, wherein: a cylindrical net cage 3 with a horizontal axis is connected to the bottom of the floating tube 1; one end of the cylindrical net cage 3 has a ring-shaped reinforcement Truss 11, and the other side of this strengthened truss 11 is connected with the shunt 2 that has conical steel tube truss structure; The bottom of cylindrical cage 3 is provided with a HDPE immersed pipe 31 along the direction parallel to the axis; HDPE sinks Iron sand is filled in the pipe 31 . The application of the conical diverter 2 is more stable to the fluctuation of the water body than the prior art, so it can achieve the extreme value of the instantaneous tension of the mooring rope system, effectively reducing the risk of anchoring, thereby reducing the construction requirements of the anchoring device 4 . Compared with the prior art, t...

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Abstract

The invention discloses a down-flow type anti-flow net cage, including a rectangular floating pipe positioned at the top of the net cage, wherein a cylindrical net cage with a horizontal axis is connected to the lower end of the floating pipe; an annular strengthening truss is arranged at one end of the cylindrical net cage, while a flow divider with a conical steel pipe truss structure is connected to the other end of the strengthening truss; a HDPE immersed pipe is arranged at the bottom of the cylindrical net cage along the direction parallel to the axis; the HDPE immersed pipe is filled with iron sand. Compared with the prior art, better stability is provided for water fluctuation due to the application of the conical flow divider, so that the instant pulling force extreme value of an anchor line system can become effective, the risk of dragging can be effectively reduced, and thereby the construction requirement of an anchoring device can be reduced. Compared with the prior art, the HDPE immersed pipe filled with the iron sand has the advantages of balanced traction force and good stability. And therefore, the down-flow type anti-flow net cage has the advantages of stable structure, outstanding anti-flow performance, good stability, low cost and low construction technical requirements.

Description

technical field [0001] The invention relates to an off-shore cage culture equipment, in particular to a flow-resistant cage. Background technique [0002] As a traditional farming method, shallow water cage culture is mainly concentrated in semi-enclosed bays. Affected by economic interests, the density of shallow-water cage culture in some coastal areas of China is relatively high, resulting in poor water flow and severe hypoxia in some cultured water bodies. In addition, residual bait and fish excrement cannot be quickly transported out with the water body, resulting in the environmental capacity of the cultured water body. The overload phenomenon is serious. This farming method not only pollutes the water quality of sea areas, but also affects the quality of farmed fish, and has also become one of the main factors that induce coastal red tides. Therefore, it is the only way for the sustainable development of cage culture to gradually transfer the cage culture from the i...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCA01K61/60Y02A40/81
Inventor 桂福坤王萍林超江丹丹孙天沐
Owner ZHEJIANG OCEAN UNIV
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