Mariculture device

Abstract

An offshore culture device comprises an offshore drilling platform, a culture net cage and a plurality of positioning cables, and the offshore drilling platform comprises a platform buoyancy chamber and a working layer; the platform buoyancy chamber is located under the working layer, the lower side face of the platform buoyancy chamber and the upper side face of the working layer are fixedly connected into a whole through a plurality of supporting columns, and the supporting columns extend in the vertical direction. The top of the culture net cage is open, and the culture net cage is located below the working layer; a sinker is connected to the bottom of the box body of the culture net cage and is configured to be located above the platform buoyancy chamber; one end of each positioning cable is fixedly mounted on a certain column body of the supporting columns, and the other end of each positioning cable is fixedly mounted on the side wall of the box body of the aquaculture net cage. According to the invention, open-sea cage culture can be realized by using the waste offshore drilling platform, the putting amount of culture cages is increased, and the types of marine product cage culture suitable for open-sea environments are enriched.

Description

Technical Field

[0001] The invention belongs to the technical field of aquaculture, and in particular relates to an offshore aquaculture device. Background Art

[0002] Cage culture is a common aquaculture technology. In practice, in order to prevent the culture cages from being swept away by the waves, most of the culture cages are designed to be fixed in the offshore area close to the coastline. The problem with this technical solution is that the offshore area suitable for placing the culture nets and close to the coastline is limited, which limits the scale of seafood cage culture. At the same time, the unique ecological environment of the offshore area limits the fish species that are suitable for farming in such culture cages. Therefore, how to develop a new structure of offshore culture device to overcome the above-mentioned problems existing in the prior art is a direction that technicians in this field need to further study. Summary of the invention

[0003] The purpose of the present invention is to provide an offshore aquaculture device that can utilize abandoned offshore drilling platforms to achieve offshore cage aquaculture, increase the number of aquaculture cages, and enrich the types of seafood cage aquaculture suitable for offshore environments.

[0004] The technical solution provided by the present invention is an offshore aquaculture device, which comprises:

[0005] An offshore drilling platform, the offshore drilling platform comprising a platform buoyancy cabin and a working layer; the platform buoyancy cabin is located directly below the working layer, the lower side of the platform buoyancy cabin and the upper side of the working layer are fixedly connected as a whole through a plurality of support columns, and the plurality of support columns extend in vertical directions respectively;

[0006] A breeding net cage, wherein the breeding net cage is configured to have an opening at the top of the box body and is located below the working layer; a sinker is connected to the bottom of the box body of the breeding net cage, and the sinker is configured to be located above the platform buoyancy compartment;

[0007] A plurality of positioning ropes, one end of each of which is fixedly mounted on a column body of one of each of the plurality of supporting columns, and the other end of each of which is fixedly mounted on a side wall of a breeding cage.

[0008] By adopting this technical solution: using abandoned offshore drilling platforms, the aquaculture cages are fixed to the support columns through positioning cables, and the height of the aquaculture cages is between the platform buoyancy and the working layer. Abandoned offshore drilling platforms are usually set up in offshore areas, thus increasing the number of aquaculture cages and enriching the types of seafood cage aquaculture suitable for offshore environments.

[0009] Preferably, the breeding cage comprises:

[0010] A rectangular metal frame, wherein the rectangular metal frame is formed by welding and fixing a stainless steel pipe;

[0011] A mesh, the mesh covering the bottom surface and four side surfaces of the rectangular metal frame; the mesh is provided with meshes connecting the inner and outer sides of the rectangular metal frame;

[0012] A mesh cable is used to fix the edge of the mesh clothing and the rectangular metal frame into one piece.

[0013] By adopting this technical solution: the rectangular metal frame is welded and fixed with stainless steel pipes to improve its strength and pressure resistance, and prevent it from being deformed under the impact of large waves and currents for a long time. The mesh on the net is used to achieve the circulation of seawater inside and outside the cage, while preventing the farmed fish from escaping from the cage. The net is fixedly connected to the rectangular metal frame by a mesh cable.

[0014] Preferably, the net is at least any one of an ultra-high molecular weight polyethylene net, a PET tortoise shell net, and a polyoxymethylene net.

[0015] By adopting this technical solution: in view of the more turbulent currents in the open sea area compared to the nearshore area, PET tortoise shell net and polyoxymethylene net covering are used to improve the water filtration of the net, reduce the water resistance of the net, and improve the wear resistance of the net.

[0016] Preferably, the rectangular metal frame includes a long side and a short side; a plurality of longitudinal reinforcing ribs are evenly distributed on the long side; a longitudinal reinforcing rib is arranged at the axial center position of the short side; and each of the reinforcing ribs is respectively formed of a stainless steel pipe.

[0017] By adopting this technical solution: longitudinal reinforcement ribs are used to strengthen the pressure-bearing capacity of each side of the cage to adapt to the greater wind and wave impact in the offshore environment compared to near-shore aquaculture.

[0018] Preferably, the side length of the mesh is 10-40 mm, and the shape of the mesh is hexagonal or rhombus.

[0019] Preferably, the mesh wire is made of ultra-high molecular weight polyethylene mesh wire or polyoxymethylene mesh wire, and the diameter of the mesh wire is 1 to 5 mm.

[0020] More preferably, the stainless steel pipe is a hollow stainless steel pipe with an outer diameter of 50 mm and an inner diameter of 40 mm.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] Firstly, the present invention can utilize abandoned offshore drilling platforms to realize offshore cage aquaculture, thereby increasing the number of aquaculture cages deployed.

[0023] Secondly, the present invention utilizes the offshore location of the offshore drilling platform to enrich the types of seafood cage culture suitable for the offshore environment.

[0024] Thirdly, the present invention adopts PET tortoise shell net and polyoxymethylene net to improve water filterability, reduce water resistance of net and improve wear resistance of net in view of the environmental characteristics of offshore drilling platform.

[0025] Finally, in view of the environmental characteristics of the offshore drilling platform, the present invention strengthens each side of the cage by arranging reinforcing ribs to prevent the frame of the cage from being deformed due to impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a connection diagram of the rectangular metal frame, mesh and network cable.

[0028] In the figure, the component names corresponding to the reference numerals are as follows:

[0029] 200. aquaculture cage; 300. positioning rope; 110. platform buoyancy cabin; 120. support column; 130. working layer; 210. rectangular metal frame; 220. net; 230. net cable; 240. sinker; 250. reinforcing ribs. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0031] Example 1, please refer to Figure 1-2 :

[0032] An offshore aquaculture device includes: an offshore drilling platform, an aquaculture cage 200 and a plurality of positioning cables 300.

[0033] The offshore drilling platform includes a platform buoyancy cabin 110 and a working layer 130; the platform buoyancy cabin 110 is located directly below the working layer 130, and the lower side of the platform buoyancy cabin 110 and the upper side of the working layer 130 are fixedly connected as a whole through a plurality of support columns 120, and the plurality of support columns 120 extend in vertical directions respectively.

[0034] The top of the aquaculture cage 200 is open, and a sinker 240 is connected to the bottom of the cage. The aquaculture cage 200 further includes: a rectangular metal frame 210, a net 220 and a net line 230. The rectangular metal frame 210 is a hexahedral structure formed by welding and fixing a stainless steel pipe, which includes a long side and a short side; a plurality of longitudinal reinforcing ribs 250 are evenly distributed on the long side; a longitudinal reinforcing rib 250 is arranged at the axial center of the short side; the reinforcing rib 250 is composed of a stainless steel pipe. The stainless steel pipe is specifically a hollow stainless steel pipe with an outer diameter of 50 mm and an inner diameter of 40 mm. The net 220 covers the bottom surface and four side surfaces of the rectangular metal frame 210; the net 220 is distributed with meshes that conduct the inner and outer sides of the rectangular metal frame 210; in this example, the net 220 is at least any one of an ultra-high molecular weight polyethylene net 220, a PET tortoise shell net 220, and a polyoxymethylene net 220. The side length of the mesh is 10-40 mm, and the mesh is in a hexagonal or rhombus shape. The mesh wire 230 is used to fix the edge of the net 220 and the rectangular metal frame 210 as a whole. The mesh wire 230 is made of ultra-high molecular weight polyethylene mesh wire 230 or polyoxymethylene mesh wire 230, and the diameter of the mesh wire 230 is 1-5 mm.

[0035] One end of the plurality of positioning cables 300 is fixedly mounted on a column of one of the plurality of supporting columns 120, and the other end of the plurality of positioning cables 300 is fixedly mounted on the side wall of the aquaculture cage 200. The plurality of positioning cables 300 are used to fix the aquaculture cage 200 at the top of its box body below the working layer 130 and to make the sinker 240 located above the platform buoyancy compartment 110 (at Figure 1 In the embodiment, a groove area is provided on the platform buoyancy chamber 110, and the aquaculture cage 200 and the sinker 240 are located just above the groove area. In practice, the platform buoyancy chamber 110 can also be configured as a planar structure).

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. An offshore aquaculture device, characterized in that: include: An offshore drilling platform, the offshore drilling platform comprising a platform buoyancy cabin and a working layer; the platform buoyancy cabin is located directly below the working layer, the lower side of the platform buoyancy cabin and the upper side of the working layer are fixedly connected as a whole through a plurality of support columns, and the plurality of support columns extend in vertical directions respectively; A breeding net cage, wherein the breeding net cage is configured to have an opening at the top of the box body and is located below the working layer; a sinker is connected to the bottom of the box body of the breeding net cage, and the sinker is configured to be located above the platform buoyancy compartment; A plurality of positioning ropes, one end of each of which is fixedly mounted on a column body of one of each of the plurality of supporting columns, and the other end of each of which is fixedly mounted on a side wall of a breeding cage.

2. The offshore aquaculture device according to claim 1, characterized in that: The breeding cage comprises: A rectangular metal frame, wherein the rectangular metal frame is formed by welding and fixing a stainless steel pipe; A mesh, the mesh covering the bottom surface and four side surfaces of the rectangular metal frame; the mesh is provided with meshes connecting the inner and outer sides of the rectangular metal frame; A mesh cable is used to fix the edge of the mesh clothing and the rectangular metal frame into one piece.

3. The offshore aquaculture device according to claim 2, characterized in that: The net is at least any one of an ultra-high molecular weight polyethylene net, a PET tortoise shell net, and a polyoxymethylene net.

4. The offshore aquaculture device according to claim 3, characterized in that: The rectangular metal frame includes a long side and a short side; a plurality of longitudinal reinforcing ribs are evenly distributed on the long side; a longitudinal reinforcing rib is arranged at the axial center position of the short side; and each of the reinforcing ribs is respectively formed of a stainless steel pipe.

5. The offshore aquaculture device according to claim 4, characterized in that: The side length of the mesh is 10-40 mm, and the shape of the mesh is hexagonal or rhombus.

6. The offshore aquaculture device according to claim 5, characterized in that: The mesh wire is made of ultra-high molecular weight polyethylene mesh wire or polyoxymethylene mesh wire, and the diameter of the mesh wire is 1-5 mm.

7. The offshore aquaculture device according to claim 6, characterized in that: The stainless steel pipe is a hollow stainless steel pipe with an outer diameter of 50 mm and an inner diameter of 40 mm.

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