Buoyant riser of high frame cage-type ecological breeding net cage

Abstract

The invention discloses a buoyant riser of a high frame cage-type ecological breeding net cage, and relates to a seawater breeding net cage. The buoyant riser of the high frame cage-type ecological breeding net cage comprises a riser body, a top pipe cap, a bottom flange plate, an arc chamber roof, and an arc chamber bottom, an intake and exhaust port of the chamber roof, and a water intake and discharge port of the chamber bottom, wherein the riser body is heightened to 2-6M; a cone-basin-shaped divider is arranged inside a pipe cavity; a first aerating through hole is formed in one side of the center of the divider; a first pressure one-way valve is connected below the first aerating through hole; or a second aerating through hole is formed in the pipe wall of one side below the divider; a second pressure one-way valve is externally connected with the second aerating through hole; and sealed floating balls are respectively arranged inside an upper pipe cavity and a lower pipe cavity. The buoyant riser has the beneficial effects that the height is increased; the height and the volume of the net cage are increased; a plurality of layers of medium nets can be arranged to increase the breeding quantity; or fishes which can not be raised in the existing cage can be raised. Therefore, the culture benefit is greatly improved. The cone-basin-shaped divider is arranged inside the pipe cavity; and the upper pipe cavity and the lower pipe cavity are orderly aerated and discharged through the aerating through hole and the pressure one-way valves. Therefore, the accumulation of pressure difference caused by aerating and discharging difference of each buoyant riser in the up and down process can be effectively reduced and avoided; and a tilting accident of the net cage in the floating process is also avoided.

Description

Technical field: [0001] The invention relates to seawater culture net cages, in particular to buoyancy risers constituting the frame of the culture net cages, in particular to buoyancy risers for high-frame culture net cages. Background technique: [0002] Existing sinking and floating cage-type culture net cages are made of cage-type net cage frame system and hang net clothes 31. Composed of the common trachea and transverse bronchi. The self-balancing sinking and floating device is arranged in the buoyancy riser. The height of the existing buoyancy riser is about 1.8 meters, which is mainly used for culturing sea cucumbers. Because of the low net height in the net, only one layer of middle net can be added in the net for cultivating sea urchins, flounder and flounder, etc., to form co-culture cages for sea cucumbers and sea urchins, or co-culture cages for sea cucumbers and flounder and flounder. But, because of the limited clear height in the net clothing, the activity...

AI Technical Summary

Problems solved by technology

However, due to the limited net height inside the nets and the limited activity space, the effect of co-cultivation is limited. Furthermore, the existing cages are not suitable for cultivating other fishes other than flounder and flounder.

[0003] If you want to increase the net height and volume in the net, you can only increase the height of the buoyancy riser, but there will be two problems in increasing the height of the buoyancy riser. The first is the strength and stability of the buoyancy riser and the cage frame. The second is that the self-balancing sinking and floating process of the net cage maintains balance without the problem of net cage dumping

And the most serious one is the second one, especially in the process of inflating and floating the net cage, once some buoyancy risers on one side of the frame are slowly inflated and drained for some reason, while some or some buoyancy risers on the other side of the frame When some buoyancy standpipes are inflated and drained quickly due to some reason, at this time, due to the appearance and continuous accumulation of the pressure difference between the two sides, the inflated and drained will be faster, and the inflated and drained will be slower, which will make the cage continue to flow. There is a tilt, and eventually there may be a tipping accident in the floating process of the cage

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