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Elevated live cage

A lifting and net cage technology, which is applied in fish farming, application, climate change adaptation, etc., can solve the problem of difficult balance control of double-pipe circular net cages in Norway, the immature lifting technology of net cages, and the inability to use many Problems such as stage pumps and submersible pumps, to achieve stable lifting control, long service life, and convenient operation

Inactive Publication Date: 2004-12-08
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fourth is to use the water pump injection and drainage method to inject water and drain water into the floating body to realize lifting. However, due to the structural limitations of the water-filled floating body of the cage, multi-stage pumps and submersible pumps cannot be used, so there are not many practical applications.
It is not easy to control the balance control of the double-pipe circular cage in Norway during the lifting process of the cage
Therefore, the cage lifting technology is not yet mature enough

Method used

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  • Elevated live cage
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Examples

Experimental program
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Embodiment Construction

[0022] see figure 1 - Fig. 3, a kind of lifting net cage, is made up of net cage frame 2, net clothes 3, sinking stone 8,9, rope 5, support ring 6, filling and exhausting lifting device, and filling and exhausting lifting device is arranged on The circular floating and sinking cylinder 7 directly below the net cage is connected (or welded) with the galvanized steel pipe support ring 6 of the net cage by a rope 5 (or connecting rod). The sealed cavity leads into the air-filled chamber at the bottom of the floating sink 7, and the upper end exposed from the top surface of the floating sink 7 is connected to a pneumatic connecting piece 17 through threads, and a rubber sealing ring 12 is arranged between the two, and the upper end of the pneumatic connecting piece 17 The other end of the connected air hose 4 is connected to a floating body 1 , and an angle steel protective frame 16 is arranged outside the pneumatic connector 17 . The opening of the air-filled cavity provided on ...

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Abstract

The elevated net cage consists of net cage and inflating and deflating elevator, and the inflating and deflating elevator is one sink-float barrel below the net cage and connected to the net cage viarope or linking rod. The sink-float barrel includes an upper sealed cavity, a lower inflating cavity with bottom opening, an air inflating pipe through the sealed cavity and with one end communicated to the inflating cavity and the other end connected to a float body, and the sink-float barrel is connected via rope to a weight. The inflating and deflating elevator has control system comprising terminal control box, air inlet and outlet valves in air pipe, compressed air cylinder or air compressor, with the air outlet valve being a remote controlled one. The elevated net cage may ascend anddescend smoothly and reliably and may be remote controlled.

Description

Technical field [0001] The invention belongs to a special device for mariculture, in particular to a lifting net cage. Background technique [0002] Utilizing the wave theory that the wave height decays proportionally with the increase of the contour of the water depth, it is an important technical measure for the net cage to resist wind and waves to sink the cage to a certain depth of water. At present, there are basically four types of lifting cages in the world. A kind of is the dish cage of American Ocean Spar Technology company. The appearance of the cage is similar to that of a flying saucer, and the lifting of the cage is realized by using the central column and balance control. The second kind is the floating-sinking net cage of steel pipe structure of Japan, and this net cage utilizes the filling and draining of some inflatable floats, and fixed floats and balance control to control the lifting of the net cage. The third is the double-pipe circular net cage devel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/60
CPCY02A40/81
Inventor 关长涛林德芳黄滨黄文强尉云乐丁士钊
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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