Combined net cage for deep sea culture

Abstract

The invention relates to a combined net cage for deep sea aquaculture, and belongs to the technical field of aquaculture equipment. The combined net cage comprises a floating ring, an upper net coveris fixedly mounted at the bottom of the floating ring, a polygonal middle waist ring is fixedly mounted at the bottom of the upper net cover, a lower net cover is fixedly mounted at the bottom of thepolygonal middle waist ring, and a hollow stand column is fixedly mounted at the inner side of the bottom of the lower net cover; and the upper end of the hollow stand column penetrates through the floating ring and is fixedly connected with the floating ring, a balancing weight is installed below the lower net cover, the balancing weight is fixedly connected with the lower net cover through a connecting rope, a water pump used for floating on the sea surface is installed at the outer side of the floating ring, and the water pump is connected with the upper end of the hollow stand column through a water conveying hose. The combined net cage is high in strength, good in flexibility, resistant to corrosion, aging and stormy waves, long in service life, large in effective aquaculture water body, high in efficiency and low in comprehensive cost.

Description

technical field [0001] The invention relates to the technical field of aquaculture equipment, in particular to a combined cage for deep sea aquaculture. Background technique [0002] The overall technical level of seawater cage culture is relatively low. Almost all of the more than 1 million cages in the country are small wooden cages installed in harbors. Due to their low cost, convenient manufacture, and easy popularization, their wind and wave resistance performance is comparable. Poor, short service life, so urgently need to be replaced. As a large number of seawater cages in my country are concentrated in harbors, the breeding density is higher than the environmental capacity of the sea area, and at the same time, there is a lack of safe and effective methods for preventing parasitic organisms from attaching to cages and nets, so that the breeding environment itself is seriously polluted. The water flow is not smooth, causing frequent fish diseases, and the quality of f...

AI Technical Summary

Problems solved by technology

[0002] The overall technical level of seawater cage culture is relatively low. Almost all of the more than 1 million cages in the country are small wooden cages installed in harbors. Due to their low cost, convenient manufacture, and easy popularization, their wind and wave resistance performance is comparable. Poor, short service life, so urgently need to be replaced

As a large number of seawater cages in my country are concentrated in harbors, the breeding density is higher than the environmental capacity of the sea area, and at the same time, there is a lack of safe and effective methods for preventing parasitic organisms from attaching to cages and nets, so that the breeding environment itself is seriously polluted. The water flow is not smooth, causing frequent fish diseases, and the quality of farmed fish species declines

my country's seawater cage culture lacks macro management, especially in recent years, the blind development of seawater cage culture in various places has caused the overload of cage culture in harbors, resulting in the deterioration of the environment in the breeding sea area and serious damage to the ecology.

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