CN116250500A - Net cage system - Google Patents

Abstract

The utility model provides a box with a net system, it includes frame components, four buoyancy tanks and four truss components of group, frame components includes eight stands, the box with a net system is the octagon in the overlook direction, eight stands are located the apex angle department of octagon respectively, every buoyancy tank is located the top position department that is close to both ends respectively and the bottom fixed connection of two stands forms U-shaped portal structure of inverting, four truss components of group and four U-shaped portal structure interval settings of inverting, the both ends of every truss component of group are connected with the U-shaped portal structure of difference respectively, four truss components of group and four U-shaped portal structures of inverting are located the eight edges of the box with a net system of octagon respectively in the overlook direction. The application has the advantages that: the net cage structure at the position close to the seabed is less, so that the water body replacement efficiency inside and outside the net cage is improved; each component is made of concrete or steel structure, the structure is simple, the assembly is convenient, the time required by the assembly of the net cage is saved, and the manufacturing cost of the net cage is reduced.

Description

Net cage system

Technical Field

The application relates to the field of ocean engineering structures, in particular to a net cage system.

Background

The development of innovative fishery, the great adjustment of the industrial structure of fishery, the transformation of the growth mode of fishery economy are the policy guidance of the fishery in China, the rapid development of the seawater cage culture fishery is strongly promoted the development of the fishery economy in China, but the long-term high-density culture in shallow water and in-bay causes various problems such as water quality deterioration, environmental pollution, fish quality reduction, disease increase and the like, and the shallow water cage culture is difficult to continuously develop. Therefore, the necessity of open sea cage culture in open deepwater areas is increasingly prominent.

The open sea cage is a sea water culture mode with higher technological content at present. The open sea net cage has the characteristics of strong wind and wave resistance, capability of cultivating marine products in a semi-open sea area and the like, so that compared with the traditional small net cage, the open sea net cage has the advantages of high degree of intensification, high cultivation density, richer food sources for cultivating fish in the net cage, high fish growth speed, good meat quality and natural quality. Meanwhile, the seawater has a certain flow velocity, and the excrement of fish and marine products can be quickly taken away by the seawater, so that compared with the traditional net cage, the open sea net cage has fewer aquaculture diseases. The advantages are that the quality of the culture products of the open sea net cage is superior, and the culture economic benefit is obvious.

In deep water sea areas, stormy waves are generally larger, and particularly in areas with typhoons in the east and south China, the influence of the stormy waves on the open sea cage culture is particularly obvious. In order to ensure the safety of the cultured marine products, the open sea net cage must have reliable storm resistance. The storm resistance of the net cage can be greatly influenced by the cage body structure and the base assembly of the net cage.

The existing open sea large-scale seat bottom net cage generally adopts a gate type steel frame structure, a plurality of gate type frames are spliced into the net cage, the net is directly hung on a beam of the gate type frame, and an independent hollow steel mat is adopted as a base. Such a cage has the following disadvantages: 1. the transverse load cannot be effectively dispersed, the load is concentrated on a single frame, a steel beam with a larger section is required to meet the bearing requirement, and meanwhile, the probability of damage of the netting is increased due to the concentrated load; 2. the steel beam-strut-caisson-peripheral anti-collision system is made of steel frame structure, the whole steel consumption is huge, and the cost is high; 3. the pure steel member is used as a bearing system, and the connection strength and the metal fatigue property of the pure steel member are required to be welded by a complex welding process; 4. when the net cage is assembled, a large amount of welding work is required, the space occupation is long due to the complex welding process and a large amount of checking work, the requirements of advanced welders are high, and the installation cost is high; 5. the independent hollow steel immersed pad is used as a base, so that the edge of the base is easily eroded by water flow, and the bottom flow of sea water is prevented from naturally removing dirt under the net cage; 6. because the inside of the immersed pad is required to be infused with water for sinking, the inside and the outside of the steel structure of the immersed pad are required to be subjected to anti-corrosion treatment, and the use amount of anti-corrosion paint is increased; 7. the overall gravity center of the net cage system with the steel gate type steel frame structure is higher, so that the stability in place of the net cage system is poor.

In view of the foregoing, there is a need in the art to provide a cage system that overcomes the shortcomings of the prior art.

Disclosure of Invention

The application provides a cage system which can solve the problems existing in the prior art. The aim of the application is achieved by the following technical scheme.

An embodiment of the application provides a box with a net system, it includes frame components, four buoyancy tanks and four truss components, frame components includes eight stands, the box with a net system is the octagon in the overlook direction, eight stands are located the apex angle department of octagon respectively, every buoyancy tank is located the top position department that is close to both ends respectively and the bottom fixed connection of two stands forms U-shaped inverted portal structure, four truss components and four U-shaped inverted portal structure interval settings, the both ends of every truss component of group are connected with different U-shaped inverted portal structure respectively, four truss components and four U-shaped inverted portal structures of group are located the eight edges of the box with a net system of octagon respectively in the overlook direction.

According to the net cage system provided by the above embodiment of the application, wherein the buoyancy tank comprises a tank body, a mud guard and two groups of connecting components, the tank body is of a hollow concrete structure, the bottom of the tank body protrudes downwards along a central line to form a bulge with an angle, the mud guard is rectangular and is arranged above the tank body, the two groups of connecting components are respectively arranged above the mud guard and near the positions of the two ends of the mud guard, and each buoyancy tank is respectively connected with the bottoms of the two upright posts through the two connecting components to form a U-shaped inverted portal structure.

According to the cage system provided by the embodiment of the application, the four truss assemblies comprise two first trusses and two second trusses, and the two first trusses and the two second trusses are symmetrically arranged by taking the center of the cage system as a symmetrical point in the overlooking direction.

According to the net cage system provided by the embodiment of the application, the net cage system further comprises two groups of boarding components, the two groups of boarding components are arranged on the outer side of the net cage system and are respectively located above the two groups of first trusses, two ends of the boarding components are respectively connected with the upper half parts of the two upright posts, the boarding components are at least partially located above the sea surface, the bottoms of the boarding components are immersed below or close to the sea surface, and the boarding components are used for berthing ships.

According to the net cage system provided by the embodiment of the application, the net cage system further comprises a net hanging platform, the net hanging platform comprises eight first cross beams and a plurality of first hooks, the net hanging platform is octagonal in the overlooking direction, the net hanging platform is horizontally arranged and located above the sea surface, two ends of each first cross beam are respectively fixedly connected with the upright posts, the first hooks are respectively fixedly connected with the first cross beams, and the first hooks are uniformly distributed on one side of the first cross beams, facing the inside of the net cage.

According to the net cage system provided by the embodiment of the application, the net cage system further comprises a net, the net is in a cylindrical bag shape, the edge of the net is connected with the net hanging platform through the first hook to form a bag opening, the lower portion of the net is connected with the frame assembly and the truss assembly, and the lower portion of the net is submerged into water to form a bag-shaped structure.

According to the cage system provided by the embodiment of the application, the frame assembly further comprises four second cross beams, the four second cross beams are horizontally arranged and are respectively located above the four buoyancy tanks, and two ends of each second cross beam are respectively fixedly connected with the top ends of the two upright posts.

According to the net cage system provided by the embodiment of the application, the frame assembly further comprises four third cross beams and a plurality of second hooks, the four third cross beams are horizontally arranged and are respectively located at positions, close to the floating boxes, above the four floating boxes, the two ends of the third cross beams are respectively fixedly connected with the two stand columns, the plurality of second hooks are respectively fixedly connected with the third cross beams and are uniformly distributed on one side, facing the inside of the net cage, of the third cross beams, and the lower portion of the net is connected with the frame assembly through the second hooks.

According to the net cage system provided by the above embodiment of the application, the upright column comprises a first column body and a second column body, the bottom end of the first column body is fixedly connected with the floating box, the top end of the first column body is fixedly connected with the bottom end of the second column body, the top end of the second column body is fixedly connected with the second cross beam, the first column body is a prism with the thick top end of the bottom end, the second column body is a column, and the second column body is connected with the net hanging platform.

According to the net cage system provided by the embodiment of the application, the net cage system further comprises a platform assembly, the platform assembly comprises a cover plate and four groups of support frames, the cover plate is in a groined shape, the cover plate is arranged at the top of the net cage system, the cover plate is fixedly connected with the upright post through the second cross beam and the support frames, the four groups of support frames are arranged in a groined shape in a parallel mode in pairs and are mutually intersected, the top of the support frames is connected with the bottom of the cover plate, and two ends of the four groups of support frames are connected with the upright post respectively.

According to the net cage system provided by the above embodiment of the application, the first truss comprises the first supporting rod and two second supporting rods, the first supporting rod is horizontally arranged at a position close to the bottom of the net cage system, two ends of the first supporting rod are respectively fixedly connected with the two upright posts through the connecting blocks, the two second supporting rods are arranged in a splayed shape, the bottom ends of the second supporting rods are fixedly connected with the first supporting rods at a position close to the connecting blocks, and the top ends of the second supporting rods are fixedly connected with the boarding assembly at a position close to the bottom center of the boarding assembly.

According to the net cage system provided by the embodiment of the application, the first truss further comprises a third hook, the third hooks are fixedly connected with the first supporting rod respectively, the third hooks are uniformly distributed on one side, facing the inside of the net cage, of the first supporting rod, and the lower portion of the net is connected with the first truss through the third hooks.

According to the net cage system provided by the above embodiment of the application, the second truss comprises a third supporting rod and two fourth supporting rods, the third supporting rod is horizontally arranged at a position close to the bottom of the net cage system, two ends of the third supporting rod are fixedly connected with two upright posts through connecting blocks respectively, the two fourth supporting rods are arranged in an inverted splayed mode, the bottom ends of the fourth supporting rods are fixedly connected with the third supporting rods at the position of the center of the third supporting rod, and the top ends of the two fourth supporting rods are fixedly connected with the upright posts on two sides of the second truss respectively.

According to the cage system provided by the embodiment of the application, the second truss further comprises fourth hooks, the fourth hooks are fixedly connected with the third supporting rods respectively, the fourth hooks are uniformly distributed on one side, facing the inside of the cage, of the third supporting rods, and the lower portion of the netting is connected with the second truss through the fourth hooks.

According to the net cage system provided by the embodiment of the application, the net cage system further comprises four steel cables, the four steel cables are parallel to each other and mutually intersected to form a groined arrangement, and two ends of each steel cable are connected with the upright posts at positions close to the bottom ends of the upright posts respectively.

According to one embodiment of the present application, there is provided a cage system wherein the first column is a hollow concrete structure.

The cage system according to the above one embodiment of the present application is provided, wherein the second cylinder is made of steel.

A cage system is provided according to one of the above embodiments of the present application, wherein the truss assembly is made of steel.

According to one embodiment of the present application, a cage system is provided wherein the screening platform is made of steel.

The cage system according to the above one embodiment of the present application is provided, wherein the boarding assembly is made of steel.

The cage system according to one embodiment of the present application is provided wherein the cover plate is made of concrete hollow slab.

According to one embodiment of the present application, a cage system is provided wherein a corrosion inhibitor additive and a penetrating additive are added to the concrete.

The cage system provided according to one of the above embodiments of the present application, wherein the penetrating additive is a cement-based penetrating crystalline waterproofing material.

According to the cage system provided in the above embodiment of the present application, the angle of the downward projection of the bottom of the cage along the center line is determined according to the soil strength of the sea floor where the cage system is provided.

The net cage system according to the embodiment of the application has the advantages that: the buoyancy tank and the first column body are hollow structures, can provide a large amount of buoyancy force during installation, have certain self-floating capacity, and are convenient for hauling and hoisting the transportation net cage in place; after the net cage is in place, the space in the floating box and the first column body can be used as a ballast space, so that the in-place stability of the net cage is guaranteed; there are no other structures except eight upright posts on the position close to the seabed, so that the replacement efficiency of the water body inside and outside the net cage is improved, and the bottom of the net cage system is kept clean; each component is made of concrete or steel structure, the structure is simple, the assembly is convenient, the time required by the assembly of the net cage is saved, and the cost of the net cage is reduced; the concrete structure has low cost, easy maintenance, difficult damage and no metal fatigue.

Drawings

Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments thereof, which proceeds with reference to the accompanying drawings.

FIG. 1 shows a schematic diagram of a cage system according to one embodiment of the present application.

FIG. 2 illustrates a top view of the cage system according to one embodiment of the present application as shown in FIG. 1.

FIG. 3 shows a schematic view of the cage system of FIG. 1 with the top platform assembly and the second cross beam removed according to one embodiment of the present application.

FIG. 4 illustrates a side view of the cage system according to one embodiment of the present application as shown in FIG. 1.

Fig. 5 shows a schematic view of a U-shaped inverted portal structure of the cage system according to one embodiment of the present application as shown in fig. 1.

FIG. 6 shows a schematic view of a buoyancy tank of the cage system according to one embodiment of the present application as shown in FIG. 1.

FIG. 7 shows a schematic view of a column of the cage system according to one embodiment of the present application as shown in FIG. 1.

Reference numerals and part names: 1-frame component, 2-buoyancy tank, 3-truss component, 4-screening platform, 5-boarding component, 6-platform component, 7-cable, 11-stand, 12-second crossbeam, 13-third crossbeam, 14-second couple, 21-box, 22-fender, 23-connecting piece, 24-arch, 31-first truss, 32-second truss, 41-first crossbeam, 42-first couple, 61-apron, 62-support frame, 63-opening, 111-first cylinder, 112-second cylinder, 113-connecting block, 311-first bracing piece, 312-second bracing piece, 313-third couple. 321-third supporting rod, 322-fourth supporting rod, 323-fourth hook, A-angle of projection, B-U-shaped inverted portal structure.

Detailed Description

The following description of the present application is given by way of example with reference to the accompanying drawings, and the technical solutions, problems to be solved and technical effects to be produced will be clearly and completely understood by those skilled in the art from the description of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. In addition, for convenience of description, only parts related to the present application are shown in the drawings.

It should be noted that, the structures, proportions, sizes, etc. shown in the drawings are only used for being combined with those described in the specification for understanding and reading by those skilled in the art, and are not intended to limit the conditions under which the present application can be implemented, so that the present application has no technical essential significance, and any modification of structures, changes in proportions or adjustment of sizes, without affecting the efficacy and achievement of the present application, should fall within the scope covered by the technical content disclosed in the present application.

References to words such as "first," "second," "the," and the like are not intended to be limiting in number, but rather may be singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or units listed but may include additional steps or units not listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

FIG. 1 shows a schematic diagram of a cage system according to one embodiment of the present application. FIG. 2 illustrates a top view of the cage system according to one embodiment of the present application as shown in FIG. 1. FIG. 3 shows a schematic view of the cage system of FIG. 1 with the top platform assembly and the second cross beam removed according to one embodiment of the present application. FIG. 4 illustrates a side view of the cage system according to one embodiment of the present application as shown in FIG. 1. Fig. 5 shows a schematic view of a U-shaped inverted portal structure of the cage system according to one embodiment of the present application as shown in fig. 1. As shown in fig. 1-5, the cage system comprises a frame assembly 1, four buoyancy tanks 2 and four groups of truss assemblies 3, wherein the frame assembly 1 comprises eight upright posts 11, the cage system is octagonal in the overlooking direction, the eight upright posts 11 are respectively positioned at the top corners of the octagon, each buoyancy tank 2 is respectively fixedly connected with the bottom ends of the two upright posts 11 at the upper positions close to two ends to form a U-shaped inverted portal structure B, the four groups of truss assemblies 3 and the four groups of U-shaped inverted portal structures B are arranged at intervals, two ends of each group of truss assemblies 3 are respectively connected with different U-shaped inverted portal structures B, and the four groups of truss assemblies 3 and the four groups of U-shaped inverted portal structures B are respectively positioned on eight sides of the octagonal cage system in the overlooking direction.

According to the net cage system provided by the embodiment of the application, the net cage system is suitable for shallow sea with the water depth of 10-20 m, and the effective fish farming water body volume is about 11000-24500 cubic meters.

Fig. 6 shows a schematic view of a buoyancy tank 2 of the net cage system according to one embodiment of the present application as shown in fig. 1. As shown in fig. 6, the buoyancy tank 2 includes a tank body 21, a mud guard 22 and two sets of connecting members 23, the tank body 21 is of a hollow concrete structure, the bottom of the tank body 21 protrudes downwards along a central line to form a protrusion 24 with an angle a, wherein 90 ° < a <180 °, the mud guard 22 is rectangular and is arranged above the tank body 21, the two sets of connecting members 23 are respectively arranged above the mud guard 22 at positions close to two ends of the mud guard 22, and each buoyancy tank 2 is respectively connected with the bottom ends of the two upright posts 11 through the two connecting members 23 to form a U-shaped inverted portal structure B.

As shown in fig. 1-6, a cage system is provided according to one embodiment of the present application described above, wherein the connecting members 23 include, but are not limited to, bolts and nuts.

According to the cage system provided in the above embodiment of the present application, the four truss assemblies 3 include two first trusses 31 and two second trusses 32, and the two first trusses 31 and the two second trusses 32 are symmetrically arranged with respect to the center of the cage system as a symmetry point in a top view direction.

According to the cage system provided by the above embodiment of the present application, the cage system further includes two sets of boarding assemblies 5, the two sets of boarding assemblies 5 are disposed outside the cage system and are respectively located above the two sets of first trusses 31, two ends of the boarding assemblies 5 are respectively connected with upper half portions of the two upright posts 11, the boarding assemblies 5 are at least partially located above the sea surface, the bottoms of the boarding assemblies 5 are immersed under or close to the sea surface, and the boarding assemblies 5 are used for berthing ships.

According to the net cage system provided by the above embodiment of the application, wherein the net cage system further comprises a net hanging platform 4, the net hanging platform 4 comprises eight first cross beams 41 and a plurality of first hooks 42, the net hanging platform 4 is octagonal in the overlooking direction, the net hanging platform 4 is horizontally arranged and located above the sea surface, two ends of each first cross beam 41 are fixedly connected with the upright posts 11 respectively, the first hooks 42 are fixedly connected with the first cross beams 41 respectively, and the first hooks 42 are uniformly distributed on one side of the first cross beams 41 towards the inside of the net cage.

The staff is on the net hanging platform 4

According to the net cage system provided by the embodiment of the application, the net cage system further comprises a net, the net is in a cylindrical bag shape, the edge of the net is connected with the net hanging platform 4 through the first hooks 42 to form a bag opening, the lower part of the net is connected with the frame assembly 1 and the truss assembly 3, and the lower part of the net is submerged into water to form a bag-shaped structure.

According to the cage system provided in the above embodiment of the present application, the frame assembly 1 further includes four second beams 12, the four second beams 12 are horizontally disposed and located above the four buoyancy tanks 2, and two ends of the second beams 12 are fixedly connected with top ends of the two upright posts 11 respectively.

According to the cage system provided by the above embodiment of the present application, the frame assembly 1 further includes four third beams 13 and a plurality of second hooks 14, the four third beams 13 are horizontally arranged and are respectively located at positions above the four buoyancy tanks 2, which are close to the buoyancy tanks 2, two ends of the third beams 13 are respectively fixedly connected with two upright posts 11, the plurality of second hooks 14 are respectively fixedly connected with the third beams 13, the plurality of second hooks 14 are uniformly distributed on one side, facing the inside of the cage, of the third beams 13, and the lower part of the netting is connected with the frame assembly 1 through the second hooks 14.

Fig. 7 shows a schematic view of the upright 11 of the cage system according to one embodiment of the present application as shown in fig. 1. As shown in fig. 7, the upright 11 includes a first column 111 and a second column 112, the bottom end of the first column 111 is fixedly connected with the buoyancy tank 2, the top end of the first column 111 is fixedly connected with the bottom end of the second column 112, the top end of the second column 112 is fixedly connected with the second beam 12, the first column 111 is a prism with a thick bottom end and a thin top end, the second column 112 is a cylinder, and the second cylinder is connected with the net hanging platform 4.

As shown in fig. 1-7, according to the above embodiment of the present application, the cage system further includes a platform assembly 6, the platform assembly 6 includes a cover plate 61 and four sets of support frames 62, the cover plate 61 is in a groined shape, the cover plate 61 is disposed at the top of the cage system, the cover plate 61 is fixedly connected with the upright 11 through the second cross beam 12 and the support frames 62, the four sets of support frames 62 are disposed in a groined shape in parallel two by two and intersecting each other, the top of the support frame 62 is connected with the bottom of the cover plate 61, and two ends of the four sets of support frames 62 are respectively connected with the upright 11. The platform assembly 6 is used to mount equipment required for the cage, including but not limited to solar panels.

According to the cage system provided in one of the above embodiments of the present application, the cover plate 61 is provided with an elongated opening 63 in the middle, and the opening 63 is used for allowing sunlight to irradiate the inside of the cage.

According to the cage system provided in the above embodiment of the present application, the first truss 31 includes a first supporting rod 311 and two second supporting rods 312, the first supporting rod 311 is horizontally disposed at a position near the bottom of the cage system, two ends of the first supporting rod 311 are fixedly connected with the two upright posts 11 through the connecting blocks 113 respectively, the two second supporting rods 312 are arranged in a splayed shape, the bottom ends of the second supporting rods 312 are fixedly connected with the first supporting rod 311 at a position near the connecting blocks 113, and the top ends of the second supporting rods 312 are fixedly connected with the boarding assembly 5 at a position near the bottom center of the boarding assembly 5.

According to the cage system provided in the above embodiment of the present application, the first truss 31 further includes third hooks 313, the plurality of third hooks 313 are fixedly connected with the first supporting rods 311 respectively, and the plurality of third hooks 313 are uniformly distributed on one side of the first supporting rods 311 facing the inside of the cage, and the lower portion of the netting is connected with the first truss 31 through the third hooks 313.

According to the cage system provided in the above embodiment of the present application, the second truss 32 includes a third supporting rod 321 and two fourth supporting rods 322, the third supporting rod 321 is horizontally disposed at a position close to the bottom of the cage system, two ends of the third supporting rod 321 are fixedly connected with two upright posts 11 through the connecting blocks 113, the two fourth supporting rods 322 are arranged in an inverted splayed manner, the bottom ends of the fourth supporting rods 322 are fixedly connected with the third supporting rod 321 at the position of the center of the third supporting rod 321, and the top ends of the two fourth supporting rods 322 are respectively fixedly connected with the upright posts 11 on two sides of the second truss 32.

According to the cage system provided in the above embodiment of the present application, the second truss 32 further includes fourth hooks 323, the fourth hooks 323 are fixedly connected with the third supporting rod 321 respectively, the fourth hooks 323 are uniformly distributed on one side of the third supporting rod 321 facing the inside of the cage, and the lower portion of the netting is connected with the second truss 32 through the fourth hooks 323.

According to the cage system provided by the above embodiment of the present application, the cage system further comprises four steel cables 7, the four steel cables 7 are parallel to each other and mutually intersected to form a groined arrangement, and two ends of the steel cables 7 are respectively connected with the upright 11 at positions close to the bottom ends of the upright 11.

The cage system according to the above-described one embodiment of the present application is provided, wherein the first cylinder 111 is a hollow concrete structure.

The cage system according to the above-described one embodiment of the present application is provided, wherein the second cylinder 112 is made of steel.

A cage system is provided according to one of the above embodiments of the present application, wherein the truss assembly 3 is made of steel.

The cage system according to the above-described one embodiment of the present application is provided, wherein the screening deck 4 is made of steel.

The cage system provided according to the above-described one embodiment of the present application, wherein the boarding assembly 5 is made of steel.

A cage system is provided according to one embodiment of the present application wherein the cover plate 61 is made of concrete hollow slab.

The cage system according to the above-described one embodiment of the present application is provided wherein the first column 111, the buoyancy tank 2 and the cover plate 61 are prefabricated members.

According to one embodiment of the present application, a cage system is provided wherein a corrosion inhibitor additive and a penetrating additive are added to the concrete.

The cage system provided according to one of the above embodiments of the present application, wherein the penetrating additive is a cement-based penetrating crystalline waterproofing material.

According to the cage system provided by the above embodiment of the present application, the angle a of the downward bulge 24 of the bottom of the cage 21 along the middle line is determined according to the soil strength of the sea floor where the cage system is arranged, so that the cage system can be approximately sunk to the position of the mud guard 22 after being in place, and the height of the buoyancy tank 2 exposed above the sea floor mud surface is reduced, so that the sea water flow at the bottom of the cage system is facilitated.

The height and volume of the buoyancy tank 2, the first column 111 and the second column 112 can be determined according to the seabed soil quality of the target sea area set by the buoyancy tank system, the water plane area required by the towing network system and the ballast requirement.

The net cage system according to the embodiment of the application has the advantages that: the buoyancy tank and the first column body are hollow structures, can provide a large amount of buoyancy force during installation, have certain self-floating capacity, and are convenient for hauling and hoisting the transportation net cage in place; the inner space of the first cylinder and the floating box can be used as a ballast space after the net cage is in place, so that the in-place stability of the net cage is guaranteed; there are no other structures except eight upright posts on the position close to the seabed, so that the replacement efficiency of the water body inside and outside the net cage is improved, and the bottom of the net cage system is kept clean; each component is made of concrete or steel structure, the structure is simple, the assembly is convenient, the time required by the assembly of the net cage is saved, and the cost of the net cage is reduced; the concrete structure has low cost, easy maintenance, difficult damage and no metal fatigue.

While the present application has been depicted and described with reference to particular embodiments thereof, such depicted and described are not meant to imply a limitation on the present application. It will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof within the embodiments thereof without departing from the scope of the application as defined in the claims. There may be a distinction between technical reproductions in this application and actual equipment due to variables in the manufacturing process, etc. Other embodiments of the present application not specifically described may exist. The specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of the present application. Although the methods disclosed herein have been described with reference to particular operations being performed in a particular order, it should be understood that these operations may be rearranged, sub-divided, or arranged to form an equivalent method without departing from the teachings of the present application. Thus, unless specifically indicated herein, the order and grouping of operations is not a limitation of the present application.

Claims (24)

1. The net cage system is characterized by comprising a frame assembly, four buoyancy tanks and four groups of truss assemblies, wherein the frame assembly comprises eight upright posts, the net cage system is octagonal in the overlooking direction, the eight upright posts are respectively located at the top corners of the octagon, each buoyancy tank is respectively fixedly connected with the bottom ends of the two upright posts at the upper positions close to the two ends to form a U-shaped inverted portal structure, the four groups of truss assemblies and the four groups of U-shaped inverted portal structures are arranged at intervals, the two ends of each group of truss assemblies are respectively connected with different U-shaped inverted portal structures, and the four groups of truss assemblies and the four groups of U-shaped inverted portal structures are respectively located on eight sides of the octagon net cage system in the overlooking direction.

2. The net cage system of claim 1, wherein the buoyancy tanks comprise a hollow concrete structure, a mud guard and two groups of connecting parts, the bottom of the buoyancy tanks protrudes downwards along a central line to form a protrusion with an angle, the mud guard is rectangular and arranged above the buoyancy tanks, the two groups of connecting parts are respectively arranged above the mud guard and near the two ends of the mud guard, and each buoyancy tank is respectively connected with the bottom ends of the two upright posts through the two connecting parts to form a U-shaped inverted portal structure.

3. The cage system of claim 2 wherein the four truss assemblies comprise two first trusses and two second trusses, the two first trusses and the two second trusses being symmetrically disposed about a center of the cage system in a top view.

4. A net cage system according to claim 3, further comprising two sets of boarding assemblies, the two sets of boarding assemblies being arranged outside the net cage system and above the two sets of first trusses, respectively, the two ends of the boarding assemblies being connected to the upper halves of the two uprights, respectively, the boarding assemblies being at least partially above the sea surface, the bottoms of the boarding assemblies being immersed below or near the sea surface, the boarding assemblies being for vessel berthing.

5. The net cage system of claim 4 further comprising a net hanging platform comprising eight first cross beams and a plurality of first hooks, wherein the net hanging platform is octagonal in top view, the net hanging platform is horizontally arranged and located above the sea surface, two ends of each first cross beam are fixedly connected with the upright posts respectively, the first hooks are fixedly connected with the first cross beams respectively, and the first hooks are uniformly distributed on one side of the first cross beams facing the inside of the net cage.

6. The cage system of claim 5 further comprising a netting in the form of a cylindrical bag, wherein the edges of the netting are connected to the netting platform by the first hooks to form a pocket, wherein the lower portion of the netting is connected to the frame assembly and truss assembly and wherein the lower portion of the netting is submerged to form a bag-like structure.

7. The cage system of claim 6 wherein the frame assembly further comprises four second cross beams horizontally disposed and positioned above the four buoyancy tanks respectively, the two ends of the second cross beams being fixedly connected to the top ends of the two upright posts respectively.

8. The cage system of claim 7 wherein the frame assembly further comprises four third beams and a plurality of second hooks, the four third beams are horizontally arranged and are respectively positioned above the four buoyancy tanks and near the buoyancy tanks, two ends of the third beams are respectively fixedly connected with two upright posts, the plurality of second hooks are respectively fixedly connected with the third beams and are uniformly distributed on one side of the third beams facing the inside of the cage, and the lower part of the netting is connected with the frame assembly through the second hooks.

9. The cage system of claim 8 wherein the upright comprises a first cylinder and a second cylinder, the bottom end of the first cylinder is fixedly connected with the buoyancy tank, the top end of the first cylinder is fixedly connected with the bottom end of the second cylinder, the top end of the second cylinder is fixedly connected with the second cross beam, the first cylinder is a prism with a thick bottom end and a thin top end, the second cylinder is a cylinder, and the second cylinder is connected with the screening platform.

10. The cage system of claim 9 further comprising a platform assembly comprising a cover plate and four sets of support frames, the cover plate being in a well shape, the cover plate being disposed at the top of the cage system, the cover plate being fixedly connected to the columns by means of the second cross beam and the support frames, the four sets of support frames being arranged in a well shape in pairs parallel and intersecting each other, the top of the support frames being connected to the bottom of the cover plate, the two ends of the four sets of support frames being connected to the columns, respectively.

11. The cage system of claim 10 wherein the first truss comprises a first support bar and two second support bars, the first support bar is horizontally disposed at a position near the bottom of the cage system, two ends of the first support bar are respectively fixedly connected with the two upright posts through connecting blocks, the two second support bars are arranged in a splayed shape, the bottom ends of the second support bars are fixedly connected with the first support bars at a position near the connecting blocks, and the top ends of the second support bars are fixedly connected with the boarding assembly at a position near the bottom center of the boarding assembly.

12. The cage system of claim 11 wherein the first truss further comprises a third hanger, the third hangers are fixedly connected to the first support bar respectively and are uniformly distributed on a side of the first support bar facing the inside of the cage, and the lower portion of the netting is connected to the first truss through the third hangers.

13. The net cage system of claim 12, wherein the second truss comprises a third supporting rod and two fourth supporting rods, the third supporting rod is horizontally arranged at a position close to the bottom of the net cage system, two ends of the third supporting rod are fixedly connected with two upright posts through connecting blocks respectively, the two fourth supporting rods are arranged in an inverted splayed shape, the bottom ends of the fourth supporting rods are fixedly connected with the third supporting rod at the position of the center of the third supporting rod, and the top ends of the two fourth supporting rods are fixedly connected with the upright posts on two sides of the second truss respectively.

14. The cage system of claim 13 wherein the second truss further comprises a fourth hanger, the fourth hangers are fixedly connected to the third support bar respectively and are uniformly distributed on a side of the third support bar facing the inside of the cage, and the lower portion of the netting is connected to the second truss through the fourth hangers.

15. The cage system of claim 14 further comprising four cables disposed in a parallel and interdigitated relationship, each cable having two ends connected to the posts proximate the bottom ends of the posts.

16. The cage system of claim 9 wherein the first column is a hollow concrete structure.

17. The cage system of claim 9 wherein the second cylinder is formed of steel.

18. The cage system of claim 1 wherein the truss assembly is formed from steel.

19. The cage system of claim 1 wherein the screening platform is formed of steel.

20. The cage system of claim 1 wherein the boarding assembly is made of steel.

21. The cage system of claim 10 wherein the cover plate is made of concrete hollow slab.

22. The cage system of claim 16 wherein the concrete incorporates corrosion and penetration inhibiting additives.

23. The cage system of claim 22 wherein the osmotic additive is a cement-based osmotic crystalline waterproof material.

24. The cage system of claim 2 wherein the angle at which the bottom of the cage is raised downwardly along the midline is determined by the soil strength of the sea floor in which the cage system is disposed.

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