A kind of floating-sink type culture net cage with equal pressure control and control method

Abstract

The invention discloses a floating-sink type culture net cage and a control method thereof under equal pressure control. The trachea and the buoyant ball are fixed on the main floating body frame through flexible ropes. The main floating body frame, the vertical support pipe and the sinking control body form a rigid whole, and the sinking control body is a plurality of sinking and floating tanks connected in sequence through connecting pipe The formed annular structure forms an equal pressure chamber, and the sinking and floating control body is located at 1 / 2 of the net cage, and is firmly connected with the vertical support pipe through the sinking and floating tank and the buffer tank. The sinking and floating control body of the present invention replaces the traditional integral isolation compartment, so that the entire sinking and floating control body forms an equal pressure chamber underwater, and realizes the stable sinking of the net cage; the main floating body frame, the vertical support pipe and the sinking and floating control body are formed. A rigid whole increases the structural strength of the net cage and prevents the deformation of the net clothing.

Description

technical field [0001] The invention belongs to the technical field of aquatic product cultivation, 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, cage aquaculture in my country is developing from shallow sea to deep water. As a high-end aquaculture equipment, sinking and floating deep-water aquaculture cages can not only adjust the cages to the appropriate aquaculture depth according to the species of aquaculture for aquaculture, but also effectively avoid natural disasters such as typhoons and red tides. Therefore, large sinking and floating deep-water cages are of great significance for the diversification of aquaculture industry and disaster prevention and mitigation in my country. At present, the research on the sinking and floating technology of cages ...

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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