CN107637556B - Open sea tubular pile purse seine farming systems - Google Patents
Open sea tubular pile purse seine farming systems Download PDFInfo
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- CN107637556B CN107637556B CN201711130991.5A CN201711130991A CN107637556B CN 107637556 B CN107637556 B CN 107637556B CN 201711130991 A CN201711130991 A CN 201711130991A CN 107637556 B CN107637556 B CN 107637556B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a far-sea tubular pile purse net culture system.A foundation part comprises a circle of inner tubular piles and a circle of outer tubular piles surrounding a central pile; the lower ends of the inner pipe pile and the outer pipe pile are buried below the seabed, and the upper end parts are connected with each other through a connecting member; the pile structure also comprises two groups of extension tubular piles positioned on the outer side of the outer tubular pile, wherein one group of the extension tubular piles is used as a foundation of an office living platform, and the other group of the extension tubular piles is used as a foundation of a production operation platform; the superstructure part comprises an inner ring walkway and an outer ring walkway; the superstructure section also includes a functional platform. The area in the inner ring purse net is a main culture area; the area between the inner and outer circular nets is an annular auxiliary breeding area for breeding fishes such as oplegnathus punctatus and cleaning attachments on the nets by the fishes. Can realize high-efficiency and high-quality open sea purse net grazing and fishing.
Description
Technical Field
The invention relates to a mariculture system, in particular to an open sea tubular pile purse net culture system.
Background
Fish is a main source of the best quality protein of human beings in the 21 st century, and with the rapid exhaustion of offshore fishery resources in China, the fishing and the trans-culture become the correct direction for fishery development. Since China became the first country with the culture quantity exceeding the fishing quantity in the world in 1988, the aquatic product yield continuously occupies the first world in 28 years.
China is a big breeding country but not a strong breeding country. The method is characterized in that the aquaculture industry in China is still in a low-level development stage, still belongs to a resource consumption type industry, has high energy consumption, high pollution and low yield, has increasingly serious pollution and ecological damage to offshore areas and excessive extraction of underground water resources, has insufficient equipment and informatization degrees, has low quality of cultured aquatic products, sometimes has aquatic product safety problems, cannot meet the vigorous demand of the society on high-quality commercial fishes, has insufficient fine breed development and popularization strength, has a fine breed coverage rate of only about 30 percent, is far away from the fine breed coverage rate of 70 percent in developed aquaculture countries, and becomes a bottleneck problem restricting the development of the fishery in China.
Most of domestic marine culture seines are shallow sea seines which are mainly distributed in the sea areas of Zhejiang, Fujian, Guangdong and the like, and have the problems of high culture density, low water body exchange rate, serious water body eutrophication, frequent disease occurrence, high death rate and the like. The open reports about purse net culture in foreign mariculture are few, and the research and demonstration of the open-sea large-scale tubular pile purse net three-dimensional ecological high-efficiency culture technology based on the northern sea area of China are not reported yet.
The impact on the purse seine is huge because the far sea bottom water flow acting force is large. The purse seine fixed connection of the large open sea tubular pile purse seine culture system is very important. The lower end of the purse net of the existing marine culture platform generally adopts mechanisms such as a counterweight stretching anchor chain and the like to enable the bottom end of the purse net to be in contact with the sea bottom surface. In a large-scale open sea tubular pile purse net culture system, the common netting and the connection mode thereof have obvious defects, mainly the joint strength of the lower end of the purse net and the sea bottom is poor, and the purse net can be lifted from the bottom end by the water flow of the sea bottom to cause cultured organisms to escape.
The large open sea tubular pile purse net culture system is a multifunctional aquaculture system independent of the sea area. The system needs to transport related equipment, baits, seedlings, adult fishes and the like between land and a culture platform by means of ships, and the system needs to be hoisted by a crane in or out of the transportation, so that the crane is very necessary to be installed in the system. The existing marine culture platform is not suitable for directly installing a crane generally, because the base positioned at the rear end of the suspension arm is stressed greatly and in all directions when the crane works, the structure of the platform can be directly influenced or even damaged, and the working safety is difficult to ensure.
Disclosure of Invention
The invention aims to solve the technical problem of providing an open sea tubular pile purse net culture system to realize high-efficiency and high-quality open sea purse net grazing and fishing.
In order to solve the technical problem, the invention adopts the following technical scheme:
a open sea tubular pile purse seine culture system is characterized by comprising a central pile, a foundation part surrounding the central pile and an upper building part arranged at the upper end of the foundation part; the foundation part comprises a circle of a plurality of inner pipe piles surrounding the central pile and a circle of a plurality of outer pipe piles surrounding the central pile and positioned outside the inner pipe piles; the upper ends of the inner pipe pile and the outer pipe pile are flush, and the lower ends of the inner pipe pile and the outer pipe pile are buried below the seabed; the upper end parts of the inner tubular pile and the outer tubular pile are connected with each other through a connecting component; the foundation part also comprises two groups of extension tubular piles positioned outside the outer tubular piles, the lower ends of the extension tubular piles are buried below the seabed, the top ends of the extension tubular piles are connected with the top ends of the outer tubular piles adjacent to the extension tubular piles through connecting members, one group of the extension tubular piles is used as the foundation of an office living platform, and the other group of the extension tubular piles is used as the foundation of a production operation platform; the foundation part also comprises an inner ring purse net taking the inner tubular pile as a support frame and an outer ring purse net taking the outer tubular pile as a support frame, the lower ends of the inner ring purse net and the outer ring purse net are both connected to the seabed, and the upper ends of the inner ring purse net and the outer ring purse net are respectively connected to the inner tubular pile and the outer tubular pile or connected to a connecting member or connected to an upper-layer building part; the superstructure portion comprises an inner-loop walkway seated on the connecting member and above the inner pipe pile and an outer-loop walkway seated on the connecting member and above the outer pipe pile; the superstructure part also comprises a functional platform located on the connecting component, the functional platform comprises a leisure fishing platform, an office living platform and a production operation platform, the office living platform is located on the basis of the office living platform, and the production operation platform is located on the basis of the production operation platform; the office living platform is provided with an office living house building, and the production operation platform is provided with a crane mounting seat; the area in the inner ring purse net is a main culture area; the area between the inner and outer circular nets is an annular auxiliary breeding area for breeding fishes such as oplegnathus punctatus and cleaning attachments on the nets by the fishes.
The purse net comprises a vertical net and a bottom net which is connected with the lower end of the vertical net and is vertical to the vertical net; the vertical net and the bottom net both comprise criss-cross net ropes and net clothes attached to the net ropes; the bottom end of the vertical net is provided with a plurality of seabed connecting ropes, the lower ends of the seabed connecting ropes are connected to the pipe piles below the seabed surface, the outer side edge of the bottom net is provided with a plurality of iron chain connecting ropes, and the outer ends of the iron chain connecting ropes are connected with iron chains; the upper end of the vertical net is provided with a plurality of hanging connecting ropes; the net head line of the vertical net is connected with a pipe pile connecting rope used for being connected with a pipe pile.
The crane mounting seat comprises a reinforcing pipe pile arranged between the extension pipe pile and the outer pipe pile, the lower end of the reinforcing pipe pile is buried under the sea floor, and the upper end of the reinforcing pipe pile is connected with connecting members on two sides of the reinforcing pipe pile through a reinforcing connecting piece; the crane mounting base further comprises a mounting plate which is fixed on the reinforcing connecting piece and is positioned right above the reinforcing pipe pile.
A bait blocking dense net is arranged in the main culture area; two ends of the bait blocking dense net are respectively connected to the inner pipe piles, and the middle part of the bait blocking dense net is connected to the central pile; the horizontal direction of the bait blocking dense net is vertical to the main flowing direction of the water flow in the culture sea area; the upper end of the bait blocking dense net is higher than the sea level, and the lower end of the bait blocking dense net is positioned at the upper part of the aquaculture water body below the sea level.
The central pile is provided with a central monitoring device, and the central monitoring device comprises a monitor and a hydrological water quality monitoring device.
The central pile also comprises a plurality of lantern rings sleeved on the pile rod; the lantern ring is provided with a central monitoring device and a net hanging mechanism.
The inner side and the outer side of the inner ring walkway and the outer ring walkway are respectively provided with a railing.
The invention has the positive effects that: the fishery development in China is developed from land-based, near shore to offshore and deep and far sea, the fishery development is in transition to the environment-friendly, resource-saving, safe and high-quality direction, and the fishery development is a great trend towards the equipment and information transformation. The open-sea large-scale tubular pile purse net three-dimensional ecological breeding demonstration is innovatively created, offshore deep open-sea areas are expanded, fine variety cultivation and popularization are developed, the instrumented informatization transformation is realized, and the fishery development direction and the national policy guidance requirements in China are met.
Because the slope of most sea areas of the yellow Bohai sea and the east sea in China is small, the method is suitable for influences of shallow depth of water from the sea areas of operation distances and the like, the sea area suitable for developing large-scale open sea purse net culture is wide, and the method is suitable for demonstration and popularization in most coastal areas in China. The invention discloses a large-scale open-sea pipe pile purse net culture system, which is an expansion mode of an offshore deepwater net cage. The invention can be matched with modern facility equipment such as automatic feeding equipment, harvesting equipment, live fish transport ships, workboats, water quality online monitoring equipment, video monitoring equipment, intelligent control platforms and the like, builds a purse net multifunctional management and protection platform, realizes cultivation equipment, informatization and intellectualization, fully utilizes open sea areas in open sea, realizes large-scale cultivation of high-quality commercial fishes, reduces cultivation energy consumption, improves the quality of aquatic products, creates a new modern fishery cultivation mode, realizes popularization and duplication of the cultivation mode, and has wide development and popularization prospects.
The foundation part and the superstructure part of the invention are mutually separated structures. In actual construction, the positions of the inner tubular pile and the outer tubular pile are difficult to be respectively positioned on arcs of an inner concentric circle and an outer concentric circle which take the central pile as the center of a circle due to water flow factors. The method comprises the steps of firstly constructing a foundation part, then constructing the inner and outer ring walkways and aligning the inner and outer ring walkways in the construction process, so that the inner and outer ring walkways are accurately positioned on the arcs of inner and outer concentric circles with the center pile as the center of a circle.
The annular auxiliary culture area between the inner and outer annular purse nets is very important. The area can be used for separately culturing fishes such as oplegnathus fasciatus for cleaning attachments on the purse net. The rock porgy teeth are convex, people like pecking eggs of marine organisms (such as rainbow and oyster) attached to the netting, and according to the habit, the rock porgy can clean the purse seine, so that complicated operation and damage to the purse seine caused by manual cleaning of the purse seine are avoided.
The invention is provided with a central pile which is used as a central point for pipe pile construction and walkway construction, in addition, a central monitoring device can be arranged on the central pile to realize the central observation of the aquaculture water body, and an isolation net can be arranged between the central pile and an inner pipe pile to realize the fan-shaped separation of a main aquaculture area so as to realize the aquaculture of subdivided areas.
The invention adopts the L-shaped purse net, and is connected with the pipe piles below the seabed through the seabed connecting ropes; the bottom net is ensured to be attached to the sea bottom surface through the iron chain. When the connecting rope at a certain position of the seabed is invalid, the bottom net plays a role in supplementary protection. The purse seine is firm and reliable in connection and can effectively prevent cultured organisms from escaping.
The outer side of the outer tubular pile is provided with the extension tubular piles, the reinforcing tubular piles are arranged between the extension tubular piles, and the mounting plate is arranged right above the reinforcing tubular piles in a seating mode through the reinforcing connecting pieces. The stress of each direction of the suspension arm is transmitted to each pipe pile and the connecting piece through the mounting plate, and the downward stress is transmitted to the seabed, so that the base has the outstanding characteristics of firmness, stability, impact resistance and the like, and the safe operation of the crane can be effectively ensured.
The main breeding area of the invention can be also provided with a bait blocking dense net. The horizontal direction of the bait blocking dense net is vertical to the main flowing direction of the water flow in the culture sea area. When in use, the floating baits are thrown to the upstream side of the water flow of the bait blocking dense net. Therefore, bait loss from the net holes of the purse net can be effectively reduced.
Drawings
FIG. 1 is a schematic top view of the basic portion of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic top view of a superstructure section of the present invention;
figure 4 is a schematic view of the structure of the seine of the invention.
Detailed Description
The invention is further illustrated by the following figures and examples.
The embodiment of the present invention includes a center pile 1, a foundation part surrounding the center pile 1, and a superstructure part installed at the upper end of the foundation part.
As shown in fig. 1 and 2, the foundation portion includes a circle of inner piles 2 surrounding the center pile 1 and a circle of outer piles 3 surrounding the center pile 1 and located outside the inner piles 2. The lower ends of the inner tubular pile 2 and the outer tubular pile 3 are buried under the seabed. Interior tubular pile 2 and 3 upper end parallel and level of outer tubular pile, the upper end of inner tubular pile 2 and outer tubular pile 3 interconnects through connecting elements 4, and concrete connection mode is: the upper end of any one inner tubular pile 2 is connected with the upper ends of two adjacent outer tubular piles 3 of the inner tubular pile 2 through two connecting members 4, as shown in fig. 1.
The foundation part also comprises two groups of extension tubular piles 5 positioned outside the outer tubular piles 3, and the lower ends of the extension tubular piles 5 are buried below the seabed. The top end of the extension tubular pile 5 is connected with the top end of the outer tubular pile adjacent to the extension tubular pile through a connecting component 4, wherein one group is used as the foundation of an office living platform 11, and the other group is used as the foundation of a production operation platform 12.
The foundation part also comprises an inner ring purse seine taking the inner tubular pile 2 as a support frame and an outer ring purse seine taking the outer tubular pile 3 as a support frame, the lower ends of the inner ring purse seine and the outer ring purse seine are connected with the seabed, and the upper ends of the inner ring purse seine and the outer ring purse seine are respectively connected with the inner tubular pile 2 and the outer tubular pile 3 or connected with the connecting component 4 or connected with an upper-layer building part.
The setting mode of purse seine is as follows: referring to fig. 4, the seine of the present invention comprises a vertical net w1 and a bottom net w6 connected to the lower end of the vertical net w1 and perpendicular to the vertical net w 1. Both the standing net w1 and the bottom net w6 comprise criss-cross mesh lines w7 and netting attached to the mesh lines w 7.
The bottom end of the vertical net w1 is provided with a plurality of seabed connecting ropes w4, and the outer side edge of the bottom net w6 is provided with a plurality of iron chain connecting ropes w 5.
Further, the upper end of the vertical net w1 is provided with a plurality of hanging connecting ropes w 3. The vertical net w1 is connected with a pipe pile connecting rope w2 at the cross section of the cross bars.
In actual construction, a short rope is reserved at the bottom of the vertical net w1 and used as a seabed connecting rope w4, and a short rope is reserved at the outer side of the bottom net w6 and used as an iron chain connecting rope w 5.
When in use, the iron chain connecting rope w5 is connected with the iron chain. The pipe pile at the part below the seabed is connected with a traction rope and a seabed connecting rope w 4. When the inner ring purse net is used as an inner ring purse net, the hanging connection rope w3 is connected with the net hanging ring on the inner ring walkway, and the tubular pile connection rope w2 is connected with the inner tubular pile. When the tubular pile is used as an outer ring purse net, the hanging connection rope w3 is connected with the net hanging ring on the outer ring walkway, and the tubular pile connection rope w2 is connected with the outer tubular pile. The short ropes on the side surfaces of two adjacent groups of netting are connected, and the vertical line is sewed.
The tubular pile adopts steel tubular pile as the support frame of netting, and inner loop netting and outer loop netting constitute bilayer structure. The net adopts a super-molecular-weight net, and aims to ensure the safety of breeding production. The cultivation structure is circular, and the main purposes are to increase cultivation water and realize large water cultivation, convenient cultivation operation and good wind wave resistance.
As shown in fig. 2 and 3, the superstructure portion includes an inner-ring walkway 7 seated on the connection member 4 and above the inner pipe piles 2 and an outer-ring walkway 8 seated on the connection member 4 and above the outer pipe piles 3. The inner side and the outer side of the inner ring walkway 7 and the outer ring walkway 8 are respectively provided with a railing 9.
The superstructure further comprises various types of functional platforms such as a leisure fishing platform 10 and the like which are seated on the connecting members 4, an office living platform 11 which is seated on the basis of the office living platform 11, and a production working platform 12 which is seated on the basis of the production working platform 12, as shown in fig. 3.
The office living platform 11 is provided with a house building for office living, and the production operation platform 12 is provided with a crane mounting seat.
The office and domestic house building comprises a house and facilities for living and office, and further comprises a sewage treatment device for treating domestic excrement and kitchen sewage.
The crane mounting base comprises a reinforced tubular pile 6 arranged between an extension tubular pile 5 and an outer tubular pile 3, the lower end of the reinforced tubular pile 6 is buried under the sea floor, and the upper end of the reinforced tubular pile is connected with connecting members 4 on two sides of the reinforced tubular pile through reinforcing connecting pieces, as shown in figure 1. The crane mounting base further comprises a mounting plate 13 which is fixed on the reinforcing connecting piece and is positioned right above the reinforcing tubular pile 6. When the lifting device is used, the base of the lifting machine is located and fixedly connected to the mounting plate 13.
The transverse culture area comprises two parts: a main culture area in the inner ring purse net and an annular auxiliary culture area between the inner ring purse net and the outer ring purse net.
The center pile 1 is required to be located at the center of the foundation part and the superstructure part. In actual construction, the positions of the inner tubular pile 2 and the outer tubular pile 3 are difficult to be respectively positioned on the arcs of an inner concentric circle and an outer concentric circle which take the central pile 1 as the center of a circle due to water flow factors. Therefore, the method firstly constructs the foundation part, then constructs the inner and outer ring walkways and aligns the walkways in the construction process of the inner and outer ring walkways, so as to realize that the inner and outer ring walkways are accurately positioned on the arcs of inner and outer concentric circles taking the central pile 1 as the center of circle.
The central pile 1 can be provided with a central monitoring device, such as a monitor and a hydrological water quality monitoring device. The central pile 1 can also be provided with a net hanging hook or a net hanging ring, and an isolation net is arranged between the central pile 1 and the inner pipe pile 2 for realizing the fan-shaped separation of the main culture area. The central pile 1 may also comprise several collars fitted over the pile shaft. The lantern ring is provided with different types of central monitoring devices and can also be provided with a net hanging hook or a net hanging ring.
The main breeding area of the invention can be also provided with a bait blocking dense net. Two ends of the bait blocking dense net are respectively connected to the inner tubular pile 2, and the middle part of the bait blocking dense net is connected to the central pile 1. The horizontal direction of the bait blocking dense net is vertical to the main flowing direction of the water flow in the culture sea area. The upper end of the bait blocking dense net is higher than the sea level, and the lower end of the bait blocking dense net is positioned at the upper part of the aquaculture water body below the sea level. When in use, the floating baits are thrown to the upstream side of the water flow of the bait blocking dense net. The water flow direction is changed and then the water flow is thrown to the other side (the upstream side of the water flow) of the bait blocking dense net.
Claims (7)
1. A open sea tubular pile purse seine culture system is characterized by comprising a central pile (1), a foundation part surrounding the central pile (1) and an upper building part arranged at the upper end of the foundation part; the foundation part comprises a circle of a plurality of inner pipe piles (2) surrounding the central pile (1) and a circle of a plurality of outer pipe piles (3) surrounding the central pile (1) and positioned outside the inner pipe piles (2); the upper ends of the inner tubular piles (2) and the outer tubular piles (3) are flush, and the lower ends of the inner tubular piles and the outer tubular piles are buried below the seabed; the upper end parts of the inner pipe pile (2) and the outer pipe pile (3) are connected with each other through a connecting component (4); the foundation part also comprises two groups of extension tubular piles (5) positioned outside the outer tubular piles (3), the lower ends of the extension tubular piles (5) are buried below the sea bottom, the top ends of the extension tubular piles (5) are connected with the top ends of the outer tubular piles adjacent to the top ends of the extension tubular piles through connecting members (4), one group of the extension tubular piles is used as the foundation of an office and living platform (11), and the other group of the extension tubular piles is used as the foundation of a production and operation platform (12); the foundation part also comprises an inner ring purse net taking the inner tubular pile (2) as a support frame and an outer ring purse net taking the outer tubular pile (3) as a support frame, the lower ends of the inner ring purse net and the outer ring purse net are both connected to the seabed, and the upper ends of the inner ring purse net and the outer ring purse net are respectively connected to the inner tubular pile (2) and the outer tubular pile (3) or connected to a connecting member (4) or connected to an upper building part; the superstructure part comprises an inner ring walkway (7) located on the connecting member (4) and above the inner pipe pile (2) and an outer ring walkway (8) located on the connecting member (4) and above the outer pipe pile (3); the superstructure part also comprises a functional platform located on the connecting component (4), the functional platform comprises a leisure fishing platform (10), an office living platform (11) and a production operation platform (12), the office living platform (11) is located on the basis of the office living platform (11), and the production operation platform (12) is located on the basis of the production operation platform (12); wherein, office living building buildings are arranged on the office living platform (11), and crane mounting seats are arranged on the production operation platform (12); the area in the inner ring purse net is a main culture area; the area between the inner purse net and the outer purse net is an annular auxiliary breeding area which is used for breeding fishes including oplegnathus punctatus and cleaning attachments on the purse net through the fishes.
2. The open sea tubular pile purse net farming system of claim 1, characterized in that: the inner ring enclosing net and the outer ring enclosing net respectively comprise a vertical net (w 1) and a bottom net (w 6) which is connected to the lower end of the vertical net (w 1) and is vertical to the vertical net (w 1); the vertical net (w 1) and the bottom net (w 6) both comprise criss-cross net lines (w 7) and net clothes attached to the net lines (w 7); the bottom end of the vertical net (w 1) is provided with a plurality of seabed connecting ropes (w 4), the lower ends of the seabed connecting ropes (w 4) are connected to the pipe piles below the sea floor, the outer side edge of the bottom net (w 6) is provided with a plurality of iron chain connecting ropes (w 5), and the outer ends of the iron chain connecting ropes (w 5) are connected with iron chains; the upper end of the vertical net (w 1) is provided with a plurality of hanging connecting ropes (w 3); the net line of the vertical net (w 1) is connected with a pipe pile connecting rope (w 2) used for connecting the pipe pile.
3. The open sea tubular pile purse net farming system of claim 1, characterized in that: the crane mounting base comprises a reinforcing tubular pile (6) arranged between an extension tubular pile (5) and an outer tubular pile (3), the lower end of the reinforcing tubular pile (6) is buried under the sea bottom, and the upper end of the reinforcing tubular pile is connected with connecting members (4) on two sides of the reinforcing tubular pile through reinforcing connecting pieces; the crane mounting base further comprises a mounting plate (13) which is fixed on the reinforcing connecting piece and is positioned right above the reinforcing tubular pile (6).
4. The open sea tubular pile purse net farming system of claim 1, characterized in that: a bait blocking dense net is arranged in the main culture area; two ends of the bait blocking dense net are respectively connected to the inner tubular piles (2), and the middle part of the bait blocking dense net is connected to the central pile (1); the horizontal direction of the bait blocking dense net is vertical to the main flowing direction of the water flow in the culture sea area; the upper end of the bait blocking dense net is higher than the sea level, and the lower end of the bait blocking dense net is positioned at the upper part of the aquaculture water body below the sea level.
5. The open sea tubular pile purse net farming system of claim 1, characterized in that: a central monitoring device is arranged on the central pile (1), and comprises a monitor and a hydrological water quality monitoring device.
6. The open sea tubular pile purse net farming system of claim 1, characterized in that: the central pile (1) also comprises a plurality of lantern rings sleeved on the pile rod; the lantern ring is provided with a central monitoring device and a net hanging mechanism.
7. The open sea tubular pile purse net farming system of claim 1, characterized in that: the inner side and the outer side of the inner ring walkway (7) and the outer ring walkway (8) are respectively provided with a railing (9).
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| NO317013B1 (en) * | 2002-11-13 | 2004-07-19 | Leiv Eiriksson Nyskaping As | Device for securing a fish cage |
| US20050183331A1 (en) * | 2003-07-02 | 2005-08-25 | Fountainhead L.L.C. | Super-enhanced aquatic floating island plant habitat |
| CN102365928A (en) * | 2011-04-27 | 2012-03-07 | 青岛恒生源生态农业有限公司 | Stereo sea cucumber seedling-raising and multiplication pond |
| CN203748449U (en) * | 2014-03-11 | 2014-08-06 | 俞英松 | Aquaculture net cage |
| CN105594644A (en) * | 2016-03-07 | 2016-05-25 | 安徽农业大学 | Net cage device for fish farming |
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Denomination of invention: Offshore pipe pile purse seine culture system Effective date of registration: 20220318 Granted publication date: 20200515 Pledgee: Shandong Laizhou Rural Commercial Bank Co.,Ltd. Pledgor: Laizhou Mingbo Aquatic Co.,Ltd. Registration number: Y2022980002754 |
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