Combined wind wave and current resistant net cage and working method thereof

Abstract

The invention discloses a combined wind wave and current resistant net cage and a working method thereof. The combined wind wave and current resistant net cage comprises a high-density polyethylene (HDPE) integrated framework and net cage bodies, and is characterized in that a plurality of square net cage units are arranged in the integrated framework formed by an HDPE tube; floating rope frames formed by a high-intensity fiber rope are arranged at the peripheries of the square net cage units below each edge of the HDPE integrated framework; a plurality of net cage bodies are arranged in the floating rope frames; and every two adjacent net cage bodies in the same square net cage unit are fixed by a multi-net-cage connector. The combined wind wave and current resistant net cage has excellent wind wave and current resistance, can keep the shapes of the net cage bodies stable and is structurally similar to the conventional fish raft; on the premise that water inside and outside the net cage can be well exchanged, the flowing deformation performance of the net is improved thoroughly; and furthermore, cultivation is convenient to manage; and the facility investment is relatively low.

Description

technical field [0001] The invention relates to a combined anti-wind wave current cage and an operation method thereof. Background technique [0002] The anti-wind and wave cage culture in my country's deep-water sea areas has developed rapidly since the end of the last century, and the most widely used cages are HDPE circular frame floating cages and floating rope cages. Their advantages and disadvantages are that the HDPE circular frame floating net cage has a simple structure and is easy to manage, but its anti-wind and wave ability is relatively poor, and it cannot resist the frontal attack of a strong typhoon above level 12. When it is arranged in a sea area with strong currents, the net deformation is serious. , directly reduce the effective aquaculture volume, and even cause damage to the aquaculture fish and cause death, which affects the survival rate of aquaculture species; the floating rope cage has strong wind and wave resistance and low cost, but has poor an...

AI Technical Summary

Problems solved by technology

Their advantages and disadvantages are that the HDPE circular frame floating net cage has a simple structure and is easy to manage, but its anti-wind and wave ability is relatively poor, and it cannot resist the frontal attack of a strong typhoon above level 12. When it is arranged in a sea area with strong currents, the net deformation is serious. , directly reduce the effective breeding volume, and even cause damage to the cultured fish and then kill them, affecting the survival rate of the cultured species; the floating rope net cage has strong wind and wave resistance and low cost, but has poor resistance to sea current deformation, not only deforms greatly under the action of sea current, And difficult to manage

In recent years, cages with all-metal steel frame structures have also been introduced and developed. However, due to poor elasticity and low wind and wave resistance, they cannot resist the frontal attack of strong typhoons above level 12, and are prone to rust in marine environments.

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