Floating and sinking type culturing net cage subjected to isobaric control and control method

Abstract

The invention discloses a floating and sinking type culturing net cage subjected to isobaric control and a control method. The floating and sinking type culturing net cage comprises floating balls, a main floating body frame, vertical supporting pipes, a sinking and floating control body, netting, a water inlet-discharge pipe and an air inlet-exhaust pipe, wherein the floating balls are fastened to the main floating body frame by flexible ropes; the main floating body frame, the vertical supporting pipes and the sinking and floating control body form one rigid whole; the sinking and floatation control body is of an annular structure which is formed by connecting multiple sinking and floatation cabins by communicating pipes, so as to form an isobaric cavity; the sinking and floating control body is located at the 1/2 position of a net cage, and is fastened to and connected with the vertical supporting pipes by the sinking and floating cabins and a buffering cabin. The sinking and floating control body of the floating and sinking type culturing net cage subjected to the isobaric control replaces a conventional integral separating sub-cabin; the whole sinking and floating control body is enabled to form the isobaric cavity underwater; the smooth and steady sinking of the net cage is realized; the main floating body frame, the vertical supporting pipes and the sinking and floating control body are enabled to form the rigid whole; the structural strength of the net cage is improved; deformation of the netting is avoided.

Description

Technical field [0001] The invention belongs to the technical field of aquatic product breeding, and in particular relates to a floating-sink type breeding net cage with equal pressure control and a control method. Background technique [0002] With the increasing demand for aquatic products and the gradual deterioration of the offshore aquaculture environment, my country's cage aquaculture is developing from shallow seas to deep waters. As a high-end aquaculture equipment, sink-floating deep-water aquaculture cages can not only adjust the cages to a suitable breeding depth for aquaculture according to the breeding species, but also effectively avoid natural disasters such as typhoons and red tides. Therefore, large sink-floating deep-water cages are of great significance to the diversification of my country's aquaculture industry and disaster prevention and reduction. my country's current research on cage sinking and floating technology is still in the preliminary stage. Most o...

AI Technical Summary

Problems solved by technology

However, during the sinking process of this kind of sinking and floating method, each isolation compartment is affected by the sea surface wind and waves, which can easily cause uneven water inlet pressure and different water inlet speed in the floating cabin, and finally cause the cage to be unstable at sea level and cause the cage to overturn or the cage not fully submerged in water

In order to make the net cage sink smoothly, some designers set the sinking control cabin and the sinker together at the bottom of the net cage. This sinking method can effectively solve the problems of uneven pressure and different water inflow speeds during the sinking process of the net cage. But at the same time, the disadvantage is that the bottom ring of the net cage bears a huge sinking force, resulting in insufficient strength. In severe cases, the net clothing may be damaged.

Moreover, this sinking method is extremely inconvenient in changing nets and catching fish

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