A kind of breeding cage with automatic oxygen supply and water exchange

Abstract

The invention belongs to the technical field of cage culture, and relates to a culture cage with automatic oxygen supply and water exchange. The present invention includes a culture net cage. The culture net cage includes an upper support floating frame and a lower support frame. Several bait recovery cylinders are arranged between the upper support floating frame and the lower support frame. Each bait recovery cylinder is connected with a Anchor; an upper piston is arranged in the bait recovery cylinder; a piston rod is coaxially fixed on the upper piston, and the upper end of the piston rod extends out of the bait recovery cylinder and the end is connected with the upper support floating frame; the bait recovery cylinder is provided with an air inlet pipe and a drain Air pipe; one end of the air intake pipe and the exhaust pipe extend into a chamber separated by the upper piston to separate the inside of the bait recovery cylinder; the other end of the air intake pipe extends out of the sea surface and the end is fixed with an air intake check valve; The other end of the exhaust pipe extends into the culture cage and the end is provided with an exhaust check valve. The invention has the advantages of realizing automatic oxygen supply and water exchange for the culture net cage.

Description

technical field [0001] The invention belongs to the technical field of cage culture, and relates to a culture cage with automatic oxygen supply and water exchange. Background technique [0002] Due to the advantages of low cost, high yield, convenient management and high return rate of cage culture, cage culture has developed rapidly in coastal areas in recent years. [0003] There is a kind of culture net cage mainly made up of ring support floating frame, culture net cage and fixing device, wherein, ring support floating frame floats on the sea surface; On the frame, use the gravity of the culture cage to lower the bottom of the culture cage to a limited depth underwater; the fixing device includes a number of counterweights that sink to the seabed and a fixed cable connecting the counterweight and the ring-supporting floating frame for fixing Ring support floating frame. In the net cage culture process, because the feed adopts that the bait is directly put into the cult...

AI Technical Summary

Problems solved by technology

In the net cage culture process, because the feed adopts that the bait is directly put into the culture net cage, this feeding method puts the bait into the culture net cage in a large amount at one time, and it has the following disadvantages: because the bait is put in at one time, there are a large number of If the bait is not eaten by the fish in the culture cage, it sinks through the culture cage, resulting in a serious waste of bait and a large amount of residual bait deposited on the seabed, affecting the marine geological environment and causing the marine geological environment to show a trend of eutrophication The problem

[0004] In addition, because a large number of fish can be cultured in the cage, the density of the fish is relatively high, and the supply of oxygen in the water is insufficient, and the situation of fish hypoxia is prone to occur, which is not conducive to the growth and development of fish.

At the same time, the fluidity of the water in the breeding cage is poor, and the pollution generated in the breeding cage is not easy to discharge, which will easily lead to serious situations such as diseases in the fish breeding process

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