Controllable net-free fish box

Abstract

The invention discloses a controllable net-free fish box, and relates to aquaculture. The controllable net-free fish box is provided with a base, a gas guide tube, a tubular gas source, a sound velocity gradient pore plate, an underwater loudspeaker and a rod-shaped support, wherein a circle of groove is formed in the periphery of the base and is used for placing a heavy object, so that the whole body is fixed at the water bottom of a breeding site; the tubular gas source is uniformly paved in the base, and the sound velocity gradient pore plate is arranged at the top of the base; the gas guide tube is arranged on the base and is used for connecting the tubular gas source with an external gas pump so as to generate nanobubbles; the nanobubbles form a bubble curtain under the action of the sound velocity gradient pore plate to surround an culture area; the underwater loudspeaker is nested on the sound wave rod-shaped support; the rod-shaped support is nested in the groove at the bottom of the base and penetrates through the sound velocity gradient pore plate to extend upwards, so that the underwater loudspeaker is arranged in the bubble curtain. Physics and acoustics are combined, and different-frequency sound wave isolation of the bubble curtain and the loudspeaker is utilized at the water bottom of the breeding site to replace a fishing net fence of a traditional net cage, so that net-free breeding is achieved.

Description

technical field [0001] The invention relates to aquaculture fields such as shallow seas, lakes, ponds, etc., and in particular to a controllable netless fish box realized by double regulation of air bubble curtain and physical acoustics. Background technique [0002] At present, there are many studies on aquaculture fish cages, but most of them do not involve the application of sound waves and bubble curtains. No one has proposed the related research on the realization of underwater netless fish cages realized by using bubble curtains and physical-acoustic dual regulation. Although traditional net cages can realize the aggregation of artificially released economical aquatic organisms for breeding, traditional net cages often have the disadvantage of serious fouling organisms, which leads to poor water flow in the net cage, hindered water exchange, and The oxygen content is low, fish are prone to disease and infection, and the health of the fish produced is worrying. At the ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of difficult disassembly and cleaning of existing fish tanks, easy attachment of seine fouling organisms, protection of organisms and easy contact with ships, and difficulty in realizing "marine ranch" rotation and the application of fish tanks in aquaculture Limitations, provide a controllable netless fish box realized by using bubble curtain and acoustic double regulation

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