Shrimp intercepting standing net for water intake of offshore nuclear power plant

Abstract

The invention discloses a shrimp intercepting standing net for a water intake of an offshore nuclear power plant. The shrimp intercepting standing net comprises a plurality of net bags and collectingbags arranged at tails of the net bags, wherein the net bags are arranged in parallel, adjacent net bags are in matched connection, net openings are formed in end parts of the net bags, sinker rings are arranged at single sides of edges of the net openings, and a plurality of buoys are arranged at single sides, symmetric to the sinker rings, of the edges of the net openings; at least one inner bagis arranged inside any net bag, a plurality of inner bags are sequentially distributed at intervals along a direction from the net openings to the collecting bags when the quantity of the inner bagsis plural, a plurality of mesh openings are formed in both the net bags and the inner bags, and sizes of the mesh openings of the inner bags are of gradient distribution along the direction from the net openings to the collecting bags; and at least one hauling cable are arranged on the net bags and are used for fixing the net bags, and at least one ball float are arranged on the collecting bags.

Description

technical field [0001] The invention relates to a stretch net for intercepting hairy shrimp, in particular to a stretching net for intercepting hairy shrimp at a water intake of a coastal nuclear power plant. Background technique [0002] In recent years, due to the change of fishery resources, the decline of large carnivorous fish resources, the reduction of natural enemies and many other objective reasons, the resources of hairy shrimp have been at the peak of reproduction and growth in recent years, which has promoted the development of the fishery of hairy shrimp. As far as the fishing of hairy shrimp is concerned, the fishing efficiency of hairy shrimp is high, the selectivity is strong, and it has strong mobility. At the water intake of some nuclear power plants, the hairy shrimp can be intercepted by setting the hairy shrimp net. Hairy shrimp is a plankton. The large zooplankton in the taxa are widely distributed in the Indian Ocean, the Pacific Ocean and the Atlantic...

AI Technical Summary

Problems solved by technology

However, due to the extremely small size of the prawns, the technical parameters of the nets for catching the prawns have very high requirements. Marine organisms are fished together, destroying the existing food chain, but also affecting the reproduction of other marine organisms, which greatly affects marine biological resources and the sea environment

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