Semi-submersible type offshore aquaculture facility modified based on container freighter

Abstract

The invention discloses a semi-submersible type offshore aquaculture facility modified based on a container freighter and belongs to the technical field of fishery equipment. A diesel engine cabin used for electricity generation and power supply is arranged on the tail portion of the aquaculture facility. A plurality of aquaculture cabins are distributed below a deck and are formed by the modification of the container cargo cabin. Cavities used for supplying buoyant force for the aquaculture facility are formed in the side walls of the aquaculture cabins. The outer wall of the aquaculture facility is connected with net cages, the net cages communicate with each other through a plurality of water-exchanging holes, the lower portions of the aquaculture cabins communicate with bottom net cages, and the aquaculture cabins are connected with water-absorbing and water-exchanging equipment. By adopting an existing container ship modification method, the cost of a ship body is greatly reduced to 15%-20% of an existing design according to the calculation of the same volume of fish-farming water; the deepest draught reaches22 meters and meets most of sea areas in China; and fresh seawater with the appropriate temperature is absorbed from the position with the water depth being 40-50 meters to be used for the replacement of the surface seawater in the cabin, and a good living condition for fish aquaculture is created.

Description

Technical field [0001] The invention relates to an offshore fish culture system, which belongs to the technical field of fishery equipment. Background technique [0002] There are two types of fish farming facilities: inshore aquaculture and offshore aquaculture. Among them, inshore fish farming is widely used, but its shortcomings are obvious: one is serious pollution, even frequent red tides, and the survival rate of fish farming is not high; the other is severely disturbed by severe weather For example, the annual frequent typhoons and tropical storms off the coast of China often damage coastal fish cages on a large scale. The technology of fish farming in open sea facilities is currently mainly used in the offshore waters of Norway, but because of its high cost and operating cost, it is only suitable for raising high-value fish species, such as salmon. The structure, depth (25 meters) and volume of container ships, such as Panamax container ships (up to 200,000 m) 3 ) It is ...

AI Technical Summary

Problems solved by technology

But its disadvantages are: the existing design is extremely expensive, and many special designs for the oil and gas industry are not suitable for the offshore farming industry

Container cargo ships, such as Panamax container cargo ships, are used for container transportation, and their own transportation objects determine their shape design: narrow in width, long in length, and slender overall, so they are suitable for container transportation, and the modification of bulk cargo ships is used The plan to refit the container cargo ship will result in a small breeding space, resulting in a low conversion utilization rate of the container cargo ship, which is not economical and practical

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