Submergence self-balance regulation device for square structure lifting net cage and control method

Abstract

The invention relates to a submergence self-balance regulation device for a square structure lifting net cage and a control method, relating to the technical field of marine net cage cultivation, in particular to the self-balance regulation device for the square structure lifting net cage and the control method. A set of self-balance regulation device is additionally arranged on the existing square lifting net cage and comprises a group of crisscross balance force lines (4) and a net bottom supporting steel pipe (6), wherein the crisscross balance force lines (4) are respectively additionallyarranged on two or four lateral faces of a cuboid netting, and the net bottom supporting steel pipe (6) is installed on the lower parts of two or four sides of the bottom of a net. The self-balance regulation device of the invention has the advantages of reasonable design principle and simple and easily implemented structure, and can be formed by slightly modifying the existing square structure lifting net cage; and the self-balance regulation device can solve the problems that the existing square lifting net cage is easily laterally overturned and can not completely submerge underwater in a submergence process under non-manual control, and the remote controllable operation of the square structure lifting net cage can be realized.

Description

Technical field: [0001] The invention relates to the technical field of seawater net cage culture, in particular to a self-balancing control device and control method for a square lifting net cage. Background technique: [0002] The lift-type deep-water cage is an anti-wind and wave cage developed to resist strong storm attacks and avoid red tide disasters. It mainly uses the characteristic that the wave height attenuates proportionally with the water depth. Before the typhoon comes, it dives to a certain depth underwater, thereby Reduce the damage and impact of wave force on cages and cultured fish, and improve the wind and wave resistance of cages. [0003] One of the key technologies of the home-made lifting deep-water cage is the technical research on the cage sinking control system. At present, there are hundreds of large-scale lifting deep-water anti-wind and wave net cages in China, but there are few successful examples of submerging underwater to avoid typhoon hazar...

AI Technical Summary

Problems solved by technology

[0006] (2) The second is that steel frame cages and HDPE circular cages do not use buoys and floating pipes to enter the water, but use large buoys and larger counterweights at the bottom of the cages to control and adjust the nets. The water intake and inflation of the large bottom buoy can change the relationship between the total sinking force and the total buoyancy of the cage, so as to achieve the ups and downs of the cage; the feature of this method is that the natural deflation can be used to achieve the stable sinking and Floating, but due to the large counterweight at the bottom of the net cage and the large current carried by the bottom buoy, the requirements for the strength of the cage frame structure are relatively high, especially the installation of the support ring at the bottom of the net is difficult, the service life is short, and the work of changing the net is also relatively It is cumbersome and difficult to popularize and apply in actual production

[0007] (3) The third is the combination of the above two forms. It not only uses the floating tube or buoy of the upper frame of the cage to enter the water, but also adds a sinker and buoy balance adjustment system at the bottom of the cage to make the cage up and down. There are many operating links in the sinking process, and it is also cumbersome

Judging from the three sinking and floating forms adopted by the lifting cage above, each has its own advantages and disadvantages, and the main problem to be solved is still the problem that it is easy to overturn during the sinking process and cannot be completely submerged.

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