阅读说明：本技术 一种抗台风深海养殖网箱装置 (Typhoon-resistant deep sea aquaculture net cage device ) 是由 王凯 万远琛 杨乐乐 朱元瑶 苗建明 于 2020-07-30 设计创作，主要内容包括：本发明涉及深海养殖技术领域,公开了一种抗台风深海养殖网箱装置,包括系泊平台、网箱框架和网衣；网箱框架包括两个正多边形浮框和若干根连接通管；两个正多边形浮框分别位于两端,连接通管的两端分别连接于两个正多边形浮框相对的表面的边缘上,且连接通管以正多边形浮框的中心轴为对称轴对称分布；系泊平台与其中一个正多边形浮框的上部通过连接绳相连,网衣包覆在网箱框架外形成网箱,网衣上设有可开合的舱门。本发明将网箱设计为横向水平轴正多边形的结构形式,使得网箱具备一定的平衡回复能力,从而有效提高其防倾覆能力。(The invention relates to the technical field of deep sea culture, and discloses a net cage device for typhoon-resistant deep sea culture, which comprises a mooring platform, a net cage frame and a netting; the net cage frame comprises two regular polygon floating frames and a plurality of connecting through pipes; the two regular polygon floating frames are respectively positioned at the two ends, the two ends of the connecting through pipe are respectively connected to the edges of the opposite surfaces of the two regular polygon floating frames, and the connecting through pipe is symmetrically distributed by taking the central shaft of the regular polygon floating frames as a symmetry axis; the mooring platform is connected with the upper part of one regular polygon floating frame through a connecting rope, the netting covers the outside of the net cage frame to form a net cage, and a retractable cabin door is arranged on the netting. According to the invention, the net cage is designed into a transverse horizontal shaft regular polygon structure, so that the net cage has certain balance recovery capability, and the overturn prevention capability of the net cage is effectively improved.)

1. A net cage device for typhoon-resistant deep sea aquaculture is characterized by comprising a mooring platform, a net cage frame and a netting;

the net cage frame comprises two regular polygon floating frames and a plurality of connecting through pipes;

the two regular polygon floating frames are respectively positioned at two ends, two ends of the connecting through pipe are respectively connected to the edges of the opposite surfaces of the two regular polygon floating frames, and the connecting through pipe is symmetrically distributed by taking the central shaft of the regular polygon floating frames as a symmetric axis;

the mooring platform is connected with the upper part of one of the regular polygon floating frames through a connecting rope, the net cover is coated outside the net box frame to form a net box, and a retractable cabin door is arranged on the net cover.

2. The net cage device for anti-typhoon deep sea aquaculture of claim 1, wherein the number of the sides of the regular polygonal floating frame is 4, 6 or 8; the number of the connecting through pipes is the same as that of the sides of the regular polygon floating frame, and the connecting through pipes are connected to the surface corresponding to the intersection points of the adjacent sides of the regular polygon floating frame.

3. The net cage device for anti-typhoon deep sea aquaculture according to claim 1 or 2, wherein the regular polygonal floating frame further comprises circular floating rings and reinforcing pipes; a corresponding regular polygon hollow is arranged in the regular polygon floating frame, and a circular floating ring with the center coinciding with the center of the regular polygon floating frame is arranged in the hollow; one end of the reinforcing pipe is connected with the outer side wall of the circular floating ring, and the other end of the reinforcing pipe is connected with the inner wall corresponding to the intersection point of the adjacent edges of the regular polygonal floating frame; the reinforcing pipes are distributed in a centrosymmetric manner by taking the center of the regular polygonal floating frame as a symmetric center.

4. The net cage device for typhoon-resistant deep sea aquaculture of claim 1 or 2, wherein the pipe diameter of the through connection pipe arranged at the bottom of the net cage frame is larger than the pipe diameter of the through connection pipe at other positions.

5. The net cage device for the typhoon-resistant deep sea aquaculture of claim 1 or 2, further comprising two net-shaped partition plates, wherein the shape and the size of the periphery of each net-shaped partition plate are the same as those of the regular polygonal floating frame, and the net-shaped partition plates are arranged in the net cage frame and can move along the axial direction of the net cage frame.

6. The net cage device for resisting typhoon deep sea aquaculture as claimed in claim 1 or 2, further comprising oxygen transport pipes, wherein the oxygen transport pipes are arranged at the bottom of the net cage frame along the axial direction of the net cage frame, and oxygen supply holes are formed in the oxygen transport pipes at intervals.

7. The net cage device for typhoon-resistant deep sea aquaculture of claim 1 or 2, further comprising a bait pipe, wherein the bait pipe is arranged at the bottom of the net cage frame along the axial direction of the net cage frame, and feeding holes are formed in the bait pipe at intervals.

8. The net cage device for typhoon-resistant deep sea aquaculture according to claim 1 or 2, wherein at least one reinforcing floating frame is further arranged inside the net cage frame, the reinforcing floating frame has the same peripheral shape and size as the regular polygon floating frame, is parallel to the regular polygon floating frame, and is symmetrically arranged with the axial center line of the net cage frame as a symmetry axis.

9. The net cage device for typhoon-resistant deep sea aquaculture according to claim 1 or 2, wherein the cage door on the net is located at the top position corresponding to the axial center line of the net cage frame, and the cage door is symmetrically divided into two cage doors which can be opened and closed towards two sides by taking the axial center line of the net cage frame as a boundary.

10. The net cage device for resisting typhoon deep sea aquaculture of claim 1 or 2, wherein the mooring platform is a floating platform, a plurality of catenary chains are symmetrically arranged at the center of the bottom of the mooring platform, a fixed block is arranged at the center of the top of the mooring platform, and one end of the connecting rope is connected to the side face of the fixed block.

Technical Field

The invention relates to the technical field of deep sea culture, in particular to a net cage device for typhoon-resistant deep sea culture.

Background

The main function of the deep-sea net cage is to culture marine products so as to meet the requirements of people on marine foods, and the deep-sea net cage is an important project of modern marine engineering. In recent years, offshore fishing seriously damages the marine ecological environment, particularly the topography of seabed vegetation, and offshore fish culture causes vicious circle of water pollution, so that the marine fish culture industry gradually shifts to deep ocean.

However, ocean deep sea conditions are severe, the probability of extreme sea conditions such as typhoon is high, the anti-overturning capacity and the capacity of coping with extreme sea conditions such as typhoon of the deep ocean aquaculture net cage structure in the prior art are weak, and the cultured fishes are easy to escape after the net cage is overturned. The maintenance and the rescue of workers to the deep and far sea net cage have time difference, so that economic loss is easily caused.

Disclosure of Invention

The purpose of the invention is: the invention provides a net cage device for typhoon-resistant deep sea aquaculture, which aims to solve the technical problems of weak overturn-preventing capability of the net cage structure and weak capability of coping with extreme sea conditions such as typhoon and the like in the prior art

In order to achieve the aim, the invention provides a net cage device for typhoon-resistant deep sea aquaculture, which comprises a mooring platform, a net cage frame and a netting; the net cage frame comprises two regular polygon floating frames and a plurality of connecting through pipes; the two regular polygon floating frames are respectively positioned at two ends, two ends of the connecting through pipe are respectively connected to the edges of the opposite surfaces of the two regular polygon floating frames, and the connecting through pipe is symmetrically distributed by taking the central shaft of the regular polygon floating frames as a symmetric axis; the mooring platform is connected with the upper part of one of the regular polygon floating frames through a connecting rope, the net cover is coated outside the net box frame to form a net box, and a retractable cabin door is arranged on the net cover.

In some embodiments of the present application, the number of sides of the regular polygon floating frame is 4, 6 or 8; the number of the connecting through pipes is the same as that of the sides of the regular polygon floating frame, and the connecting through pipes are connected to the surface corresponding to the intersection points of the adjacent sides of the regular polygon floating frame.

In some embodiments of the present application, the regular polygon floating frame further includes a circular floating ring and a reinforcing pipe; a corresponding regular polygon hollow is arranged in the regular polygon floating frame, and a circular floating ring with the center coinciding with the center of the regular polygon floating frame is arranged in the hollow; one end of the reinforcing pipe is connected with the outer side wall of the circular floating ring, and the other end of the reinforcing pipe is connected with the inner wall corresponding to the intersection point of the adjacent edges of the regular polygonal floating frame; the reinforcing pipes are distributed in a centrosymmetric manner by taking the center of the regular polygonal floating frame as a symmetric center.

In some embodiments of the present application, the pipe diameter of the communicating pipe disposed at the bottom of the net cage frame is greater than the pipe diameters of the communicating pipes at other positions.

In some embodiments of the present application, the net-shaped frame further comprises two net-shaped partition plates, the shape and size of the outer periphery of each net-shaped partition plate are the same as those of the regular polygonal floating frame, and the net-shaped partition plates are arranged in the net cage frame and can move along the axial direction of the net cage frame.

In some embodiments of the present application, the oxygen transport pipe is disposed at the bottom of the net cage frame along the axial direction of the net cage frame, and the oxygen transport pipe is provided with oxygen supply holes at intervals.

In some embodiments of the present application, the device further comprises a bait pipe, the bait pipe is arranged at the bottom of the net cage frame along the axial direction of the net cage frame, and the bait pipe is provided with feeding holes at intervals.

In some embodiments of the present application, at least one reinforcing floating frame is further disposed inside the net cage frame, the reinforcing floating frame has the same peripheral shape and size as the regular polygon floating frame, and the reinforcing floating frame is parallel to the regular polygon floating frame and symmetrically disposed with the axial central line of the net cage frame as the symmetry axis.

In some embodiments of the present application, the door on the netting is located at a top position corresponding to an axial center line of the net cage frame, and the door is symmetrically divided into two doors capable of opening and closing towards two sides by taking the axial center line of the net cage frame as a boundary.

In some embodiments of the present application, the mooring platform is a floating platform, a plurality of catenary chains are symmetrically arranged at the bottom center of the mooring platform, a fixed block is arranged at the center of the top of the mooring platform, and one end of the connecting rope is connected to the side surface of the fixed block.

Compared with the prior art, the typhoon-resistant deep sea aquaculture net cage device provided by the embodiment of the invention has the beneficial effects that:

the invention provides a net cage device for typhoon-resistant deep sea aquaculture, which provides a brand new design idea, changes a conventional net cage arrangement method, and designs the net cage into an integral structure of a transverse horizontal shaft regular polygon. When the net cage is subjected to the action of strong wind and wave flow caused by typhoon extreme sea conditions, the net cage is stressed to rotate in a small range along the horizontal axis of the net cage, and the net cage has certain balance recovery capability due to the structural form of the regular polygon of the transverse horizontal shaft. The reasons for the restoring force are: the symmetrical structure of the net cage is used for eliminating buoyancy difference caused by water volume difference, and restoring torque is generated, so that the net cage can be restored to a static water balance state. The symmetrical design of regular polygon strengthens the ability of the net cage to restore to the balance state, thereby effectively improving the overturn-preventing ability.

Meanwhile, when the single-point mooring platform encounters storm flow, the net cage is driven to rotate along the stress direction and is finally parallel to the incoming flow direction, namely the position with the minimum stress, the storm flow which needs to be borne by the net cage can be effectively reduced, and the overturn prevention capability of the net cage is further improved.

When the net cage normally works, the cabin door is closed, the net cage is used as a closed whole, and the phenomenon that cultured fishes escape cannot occur when the net cage is inclined at any angle. Effectively solves the problem of economic loss of escape of cultured fishes caused by overturn of the deep sea net cage in the traditional form under extreme sea conditions such as typhoon and the like.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a net cage device for typhoon-resistant deep sea aquaculture in an embodiment of the invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a cross-sectional view of the cage frame taken along a vertical axial direction.

Fig. 4 is a schematic structural diagram of a regular polygon floating frame.

Fig. 5 is a schematic structural view at the middle of the net cage.

In the figure, 1, a mooring platform; 101. a catenary chain; 102. a fixed block; 2. a cage frame; 3. netting; 4. a regular polygonal floating frame; 41. a circular floating ring; 42. reinforcing the pipe; 5. connecting a through pipe; 6. connecting ropes; 7. a cabin door; 8. a mesh-like separator; 9. an oxygen transport tube; 10. a bait tube; 11. and (5) reinforcing the floating frame.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1, a net cage device for typhoon-resistant deep sea aquaculture according to a preferred embodiment of the present invention includes a mooring platform 1, a net cage frame 2 and a netting 3. Specifically, referring to fig. 2 and 3, the net cage frame 2 includes two regular polygonal floating frames 4 and a plurality of connecting pipes 5. Two regular polygon floats frame 4 and is located both ends respectively, the both ends of connecting through pipe 5 are connected respectively in two regular polygon floats on the edge on the surface that frame 4 is relative, just connecting through pipe 5 with regular polygon floats the center pin of frame 4 and distributes as symmetry axis symmetry. The central axis of the regular polygon floating frame 4 is the axis of the center of the regular polygon along the length direction. The mooring platform 1 is connected with the upper part of one regular polygon floating frame 4 through a connecting rope 6, the net 3 is coated outside the regular polygon floating frame 4 and the connecting through pipe 5 to form a net box, and a cabin door 7 capable of being opened and closed is arranged on the net 3. The net 3 is a net-like member having a mesh made of a plurality of iron wires, and actually, the net 3 may be provided in a plurality of pieces. The pipe diameter of the connecting through pipe 5 in the net cage frame 2 is determined according to the whole weight of the net cage, and only the requirement that the buoyancy provided by the hollow connecting through pipe 5 is slightly larger than the dead weight of the net cage is met, so that the net cage can be submerged in water, and a small part of the net cage is remained above the water surface.

The invention provides a net cage device for typhoon-resistant deep sea aquaculture, which provides a brand new design idea, changes a conventional net cage arrangement method, and designs the net cage into an integral structure of a transverse horizontal shaft regular polygon. When the net cage is subjected to the action of strong wind and wave flow caused by typhoon extreme sea conditions, the net cage is stressed to rotate in a small range along the horizontal axis of the net cage, and the net cage has certain balance recovery capability due to the structural form of the regular polygon of the transverse horizontal shaft. The reasons for the restoring force are: the symmetrical structure of the net cage is used for eliminating buoyancy difference caused by water volume difference, and restoring torque is generated, so that the net cage can be restored to a static water balance state. The symmetrical design of regular polygon strengthens the ability of the net cage to restore to the balance state, thereby effectively improving the overturn-preventing ability.

In some embodiments of the present application, the number of the sides of the regular polygon floating frame 4 is 4, 6 or 8; the number of the connecting through pipes 5 is the same as that of the sides of the regular polygon floating frame 4, and the connecting through pipes 5 are connected to the surface corresponding to the intersection points of the adjacent sides of the regular polygon floating frame 4. Referring to fig. 1-3, the preferred embodiment of the present application is a regular hexagonal floating frame.

In some embodiments of the present application, referring to fig. 4, the floating frame 4 further includes a circular floating ring 41 and a reinforcing tube 42. The regular polygon floating frame 4 is internally provided with a corresponding regular polygon hollow, and a circular floating ring 41 with the center coinciding with the center of the regular polygon floating frame 4 is arranged in the hollow. The number of the reinforcing pipes 42 is the same as that of the regular polygon floating frame 4, one end of each reinforcing pipe 42 is connected with the outer side wall of the circular floating ring 41, the other end of each reinforcing pipe 42 is connected with the inner wall corresponding to the intersection point of the adjacent sides of the regular polygon floating frame 4, and the reinforcing pipes 41 are distributed in a central symmetry mode by taking the center of the regular polygon floating frame 4 as a symmetry center. The circular floating ring 41 and the regular polygon floating frame 4 are concentric and coaxial, and are connected with the regular polygon floating frame 4 by the reinforcing pipe 42, so that a plurality of pipelines inside the regular polygon floating frame 4 are connected with the central symmetry as the standard, and the overall structural strength of the regular polygon floating frame 4 is effectively enhanced.

In some embodiments of the present application, referring to fig. 3, the pipe diameter of the communicating pipe 5 disposed at the bottom of the net cage frame 2 is larger than the pipe diameters of the communicating pipes 5 at other positions. The arrangement enables the two pipelines at the bottom of the net cage along the length direction (axial direction) to have the function of loading ballast water. Preferably, the length of the connecting pipe 5 at the bottom is the same as the whole length of the net cage, and the pipe diameter (pipe diameter) of the connecting pipe 5 is twice of that of the rest connecting pipes, so that the connecting pipe is used as a ballast pipe. When the net cage normally works, a certain amount of ballast water is introduced into the connecting through pipe 5 at the bottom, so that the whole net cage can keep a horizontal suspension state, and a small part of the net cage is exposed above the water surface. When severe sea conditions such as typhoon occur, a larger amount of ballast water is introduced into the connecting through pipe 5 at the bottom, so that the net cage is completely submerged below the water surface, and wind waves are avoided. When the net cage needs to be maintained, ballast water in the connecting through pipe 5 at the bottom can be drained, so that the net cage completely floats out of the water surface, and the net is overhauled, cleaned and sunned.

In some embodiments of the present application, referring to fig. 5, the net-shaped floating frame further includes two net-shaped partition plates 8, the shape and size of the outer periphery of each net-shaped partition plate 8 are the same as those of the regular polygonal floating frame 4, and the net-shaped partition plates 8 are disposed in the net cage frame 2 and can move along the axial direction of the net cage frame 2. A plurality of iron wires are regularly distributed on the reticular clapboard 8 to form meshes for filtering fish schools with different sizes, and the size of the meshes can be changed by adjusting the distance between the iron wires. Taking salmon as an example, the length of adult fish is 0.8-1.6 m, the meshes can be rhombus, and the side length is 1.0 m. The initial positions of the two reticular clapboards 8 are respectively arranged at the two ends of the net cage frame 2, when the fish school grows to be capable of being caught, the two reticular clapboards 8 are respectively moved to the positions corresponding to the net cage doors 7 from the two ends, the adult fish reaching the catching standard is concentrated between the two reticular clapboards 8, and then the adult fish is taken out through the external fish pump.

In some embodiments of the present application, referring to fig. 2 and 3, the present application further includes an oxygen transport pipe 9, the oxygen transport pipe 9 is disposed at the bottom of the net cage frame 2 along the axial direction of the net cage frame 2, and the oxygen transport pipe 9 is provided with oxygen supply holes (not shown) at intervals. The two oxygen transport pipes 9 are preferably arranged and symmetrically arranged at the bottom of the net cage frame 2. When the net cage is submerged below the water surface under extreme sea conditions, the oxygen transport pipe 9 can provide sufficient oxygen for the cultured fishes in the net cage, so that the death of the fishes is avoided. And in a normal floating state, the fish in the net cage is supplied with oxygen in an auxiliary manner according to weather change and oxygen content in water.

In some embodiments of the present application, referring to fig. 2 and 3, the present application further includes a bait pipe 10, the bait pipe 10 is disposed at the bottom of the net cage frame 2 along the axial direction of the net cage frame 2, and the bait pipe 10 is provided with feeding holes (not shown) at intervals. The number of the bait pipes 10 is preferably two, and the two bait pipes are symmetrically arranged at the bottom of the net cage frame 2. The bait pipe 10 has a small pipe diameter and is used for feeding fodder uniformly.

In some embodiments of the present application, referring to fig. 1 and 5, at least one reinforcing floating frame 11 is further disposed inside the net cage frame 2, the reinforcing floating frame 11 has the same peripheral shape and size as the regular polygon floating frame 4, and the reinforcing floating frame 11 is parallel to the regular polygon floating frame 4 and symmetrically disposed with the axial central line of the net cage frame 2 as the symmetry axis. Fig. 5 shows an example in which a reinforcing floating frame 11 is provided at the axial center line of the cage frame 2.

In some embodiments of the present application, the door 7 on the netting 3 is located at a top position corresponding to the axial centerline of the cage frame 2, and the door 7 is symmetrically divided into two doors that can open and close towards two sides by taking the axial centerline of the cage frame 2 as a boundary. Symmetrical type cabin doors 7 are arranged in the middle of the top of the net cage, so that fry can be conveniently thrown and adult fishes can be conveniently captured. The specific opening and closing forms of the door 7 are various, such as hinged, side-shifting, folding and furling. When the net cage normally works, the cabin door 7 is closed, the net cage is used as a closed whole, and the phenomenon that cultured fishes escape cannot occur when the net cage is inclined at any angle. Effectively solves the problem of economic loss of escape of cultured fishes caused by overturn of the deep sea net cage in the traditional form under extreme sea conditions such as typhoon and the like.

In some embodiments of the present application, the mooring platform 1 may take a variety of forms, such as a fixed leg platform, a floating platform, or a barge-type platform. Wherein, the fixed pile leg platform can be adopted under the condition that the water depth does not exceed 40m, and the floating platform can be adopted in the deep sea with the water depth exceeding 60 m. Under the condition that the water depth exceeds 60m, if a fixed pile leg platform is adopted, the pile leg is high in height, high in manufacturing cost and low in economic benefit. The barge type platform has self-navigation capability, can navigate to a sea area with good culture conditions, carries out anchoring culture, and has wide culture moving range and high maneuverability. The platform of above-mentioned form all can use with the box with a net of this application collocation, and the platform of specific mooring in which kind of form can be according to actual work sea area geology, the flexible change of stormy wave stream condition.

In some embodiments of the present application, referring to fig. 1, the mooring platform 1 is a floating platform, and a plurality of catenary chains 101 are symmetrically arranged at the bottom center of the mooring platform 1, and the catenary chains 101 are connected to the seabed. A fixed block 102 is arranged at the center of the top of the mooring platform 1, one end of the connecting rope 6 is connected to the side face of the fixed block 102, and the other end of the connecting rope is connected to the upper side portion of the net cage frame 2. The material of the connecting rope 6 can be changed according to the actual strength requirement, and a plant fiber rope, a synthetic fiber rope or a steel wire rope can be specifically adopted.

In the above embodiment, the cage frame 2 may be made of steel, and the surface thereof is covered with an anti-corrosion coating to increase durability.

In the above embodiment, the netting 3 may be made of steel, nylon, or polyethylene, so as to increase durability.

Referring to fig. 1 to 5, in the preferred embodiment of the present application, the length of the cage frame 2 is 300m, the regular polygon floating frame 4 is a regular hexagon floating frame, and 6 connecting pipes 5 are provided, and are respectively connected to the surface corresponding to the intersection points of the adjacent sides of the regular polygon floating frame 4 to form a symmetrical structure having 2 connecting pipes 5 at the top, 2 connecting pipes 5 at the middle, and 2 connecting pipes 5 at the bottom. The thickness of the regular hexagon floating frame is 1m, and the side length is 20 m. The circular floating ring 41 has a thickness of 1m, an outer diameter of 5m and an inner diameter of 4 m. The pipe diameter (pipe internal diameter) of the connecting through pipe 5 at the top and the middle part is 1.6m, the pipe diameter of the connecting through pipe 5 at the bottom is 3.2m, and the connecting through pipe 5 is connected with the regular hexagon floating frame by welding to form the net cage frame 2. The bait pipe 10 has a pipe diameter of 20cm and a length of 300m, and feed holes are arranged at intervals of 5 m. The diameter of the oxygen conveying pipe 9 is 20cm, the length is 300m, and oxygen supply holes are arranged at intervals of 2 m. The hatch 7 comprises two hinged hatches, the length of the single hatch being one tenth of the total length of the net cage, i.e. 30m, and the width being 20 m.

In summary, the invention provides a net cage device for typhoon-resistant deep sea aquaculture, provides a brand new design idea, changes a conventional net cage arrangement method, and designs the net cage into an integral structure of a transverse horizontal shaft regular polygon. When the net cage is subjected to the action of strong wind and wave flow caused by typhoon extreme sea conditions, the net cage is stressed to rotate in a small range along the horizontal axis of the net cage, and the net cage has certain balance recovery capability due to the structural form of the regular polygon of the transverse horizontal shaft. The reasons for the restoring force are: the symmetrical structure of the net cage is used for eliminating buoyancy difference caused by water volume difference, and restoring torque is generated, so that the net cage can be restored to a static water balance state. The symmetrical design of regular polygon strengthens the ability of the net cage to restore to the balance state, thereby effectively improving the overturn-preventing ability.

Meanwhile, when the single-point mooring platform encounters storm flow, the net cage is driven to rotate along the stress direction and is finally parallel to the incoming flow direction, namely the position with the minimum stress, the storm flow which needs to be borne by the net cage can be effectively reduced, and the overturn prevention capability of the net cage is further improved.

The invention is suitable for the field of deep sea culture, can withstand extreme sea conditions such as strong typhoon and has good industrial application prospect.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.