Nest floating method

Abstract

The invention discloses a net floating method. The net floating method includes that 1), a net floats in a horizontal state: stainless steel balls in an inner tube of a T-shaped drainage valve are positioned in the center of the inner tube, and water in a buoyancy tube flows into the inner tube of the T-shaped drainage valve via two U-shaped PE (polyethylene) hoses connected with metal drop tubes, and is sequentially drained out of the T-shaped drainage valve and the buoyancy tube via inner drainage holes in the inner tube, so that the transverse buoyancy tube ascends to drive a net top, a net enclosure and a net bottom of the net to float; 2), the net floats in a non-horizontal state: the stainless steel balls in the T-shaped drainage valve automatically roll to a lower side of the inner tube of the T-shaped drainage valve and plug an orifice of the U-shaped PE hose on the lower side of the inner tube, and under the effect of air pressure, the water is sequentially drained out of the T-shaped drainage valve and the buoyancy tube via the U-shaped PE hose which is arranged on the other side of the inner tube and is connected with the inner tube of the T-shaped drainage valve, so that the transverse buoyancy tube ascends to drive the net top, the net enclosure and the net bottom of the net to float. The net floating method has the advantages that the net can completely float on a water surface, so that the fishing efficiency can be improved, and maintenance on the net can be facilitated.

Description

technical field [0001] The invention belongs to the field of marine fishery equipment, and in particular relates to a method for floating net cages, in particular to a method for floating nets. Background technique [0002] The sinking-floating net cage is a device widely used in marine fish farming. It usually includes a net cage frame structure composed of upper support pipes, lower support pipes, vertical buoyancy pipes, and filling and exhaust pipes. , net bottom composition net clothing. The device mainly adopts the pneumatic principle to make the whole net cage sink or float by filling and exhausting the vertical buoyancy tube and water, and the cultured animals grow in the net clothing. [0003] Existing cage net is fixed on upper support or vertical buoyancy pipe at most, and net enclosure is fixed on vertical buoyancy pipe, and net bottom is fixed on lower support or vertical buoyancy pipe. Restricted by the structure, when the existing cages are floating, they us...

AI Technical Summary

Problems solved by technology

Restricted by the structure, when the existing cages are floating, they usually use the vertical buoyancy tubes to achieve the buoyancy. However, as the height of the vertical buoyancy tubes increases from the water surface, the drainage volume becomes smaller and smaller. Usually the upper support and the top of the net can float out of the water, while most of the bottom of the net below the top of the net and the bottom of the net are still in the water, which makes it time-consuming and laborious to catch cultured animals. Especially important is that the net is easy to be damaged and It is easy to attach shellfish and other organisms to the net, which requires regular maintenance and cleaning of the attachments on the net. However, because it is in water, diving operations are required when maintaining or cleaning the attachments, resulting in significant damage. Security risks

Images