Downflow type anti-flow cage

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...

AI Technical Summary

Problems solved by technology

However, the longitudinal traction force of the wedge-shaped shunt is too large, the lateral force is unbalanced, and the anchor will be unplugged and anchored, which needs further improvement

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