Improved main frame of offshore net cage

Abstract

The invention provides an improved main frame of an offshore net cage. The main frame consists of a floating pipe, and is characterized in that the floating pipe is a hollow elliptical pipe with a horizontal long axis and is prepared by processing a round pipe with relative draught of 10%-20%, and the relative draught refers to the percentage of the ratio of the amount of draught to the blank diameter before flattening. The improved main frame for the offshore net cage is reasonable in structure, high in operability, saved in cost, steady in connection, and improved in stability, anti-typhoon capability and risk prevention capability; and the main frame is mainly used for improving the strength and improving the wind and wave prevention level on the premise of not changing the overall size of an existing main frame, promoting offshore net cage culture to deep open sea areas, and realizing safe culture production in open sea areas with water depth of 20-60m.

Description

technical field [0001] The invention relates to a net cage used for seawater net cage culture, in particular to an improved main frame of a deep water net cage. Background technique [0002] Mariculture cages are an important part of marine fisheries. At present, my country's offshore large-scale cage culture engineering equipment technology has made breakthrough progress, and has created a localized anti-wind and wave deep-water cage suitable for my country's sea conditions. Six offshore deep-water cage culture areas have been established in the typhoon-prone South China Sea area. More than 40 offshore deep-water cage breeding demonstration bases have been established across the country, and the total number of cages used is nearly 8,000. [0003] The types of cages include HDPE circular cages, HDPE square cages, square steel cages, etc., which are distributed near the semi-open waters with a water depth of 20 meters and islands as barriers, and have achieved great economic...

AI Technical Summary

Problems solved by technology

The main frame structure and pipe material design of the deep-water net cage is unscientific, the anti-wind and wave ability is poor, and the pipe material is easily deformed or broken, which will damage the entire net cage and result in unstable production

Super typhoons can also cause serious damage to deep-water cages, causing huge economic losses

After investigation, the main reasons for the damage to the cages are: the floating pipes of the main frame and the guardrails are damaged and broken, the joints of the I-shaped frames are stressed, and the joints between the anchor ropes and the main frames of the cages are severely damaged, resulting in the damage of a large number of main frames of the cages. break off

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