CN107182877B - Large deepwater net cage adopting longitudinal framework type main framework - Google Patents

Large deepwater net cage adopting longitudinal framework type main framework Download PDF

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Publication number
CN107182877B
CN107182877B CN201710417214.2A CN201710417214A CN107182877B CN 107182877 B CN107182877 B CN 107182877B CN 201710417214 A CN201710417214 A CN 201710417214A CN 107182877 B CN107182877 B CN 107182877B
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China
Prior art keywords
frame
layer
floating
pipe
sleeves
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CN107182877A (en
Inventor
刘海阳
陶启友
王绍敏
黄小华
胡昱
郭根喜
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South China Sea Fisheries Research Institute Chinese Academy Fishery Sciences
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South China Sea Fisheries Research Institute Chinese Academy Fishery Sciences
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
    • A01K61/65—Connecting or mooring devices therefor
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Revetment (AREA)

Abstract

The invention discloses a large deepwater net cage adopting a longitudinal framework type main framework, which is provided with a main framework, an anchoring system for anchoring the main framework and a netting hung below the main framework, and is characterized in that: the main framework is a longitudinal framework type main framework which is provided with an upper layer floating frame and a lower layer floating frame; the upper floating frame and the lower floating frame are fixed, and the lower floating frame is positioned below the upper floating frame; and under the condition that the large deepwater net cage has no external force, the upper floating frame of the longitudinal framework type main framework floats on the sea surface, and the lower floating frame is submerged below the sea surface. The invention can enhance the stability of the main frame, reduce the impact displacement of waves to the main frame, effectively reduce the inertia force of the main frame moving along with the waves, reduce the inertia restoring force and the impact action of the anchor rope to the main frame and avoid the excessive loading of the anchor rope force to the frame.

Description

Large deepwater net cage adopting longitudinal framework type main framework
Technical Field
The invention relates to a large-scale deepwater net cage adopting a longitudinal framework type main framework.
Background
At present, deep water net cages in northern parts of south China sea are mainly distributed in offshore and offshore areas, net cage facilities and culture technologies are developed in a breakthrough manner, the operating water depth can reach 20-100 m, the structural safety rate can reach more than 90% under the working condition of 14-level typhoon operation, but the structural strength needs to be improved, such as reasonably designing a main framework structure, fully utilizing the stress characteristics of the main framework and wave current, and effectively avoiding the damage effect of surface layer wind waves.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a large deepwater net cage adopting a longitudinal framework type main framework.
The technical scheme adopted by the invention is as follows:
a large deepwater net cage adopting a longitudinal framework type main framework is provided with the main framework, an anchoring system for anchoring the main framework and a netting hung below the main framework, and is characterized in that: the main framework is a longitudinal framework type main framework which is provided with an upper layer floating frame and a lower layer floating frame; the upper floating frame and the lower floating frame are fixed, and the lower floating frame is positioned below the upper floating frame; and under the condition that the large deepwater net cage has no external force, the upper floating frame of the longitudinal framework type main framework floats on the sea surface, and the lower floating frame is submerged below the sea surface.
As a preferred embodiment of the present invention: under the condition that the large deepwater net cage has no external force, the upper floating frame is immersed in the seawater to a height of 1/2-3/5 of the total height of the upper floating frame.
In order to facilitate the adjustment of the buoyancy of the upper floating frame and the lower floating frame and to match the construction process of the existing deep water net cage floating frame to reduce the construction difficulty and the construction cost of the longitudinal skeleton type main framework, the invention is taken as a preferred embodiment:
the upper floating frame comprises at least one upper floating pipe frame which is horizontally arranged, and for the case that the upper floating frame comprises more than two upper floating pipe frames, the upper floating pipe frames are sorted in an increasing order according to the horizontal cross-sectional area of the enclosed space, and the former upper floating pipe frame is positioned in the enclosed space of the latter upper floating pipe frame;
the lower floating frame comprises at least one lower floating pipe frame which is horizontally arranged, and for the condition that the lower floating frame comprises more than two lower floating pipe frames, the lower floating pipe frames are sorted in an increasing order according to the horizontal cross-sectional area of the enclosed space, and the former lower floating pipe frame is positioned in the enclosed space of the latter lower floating pipe frame;
the upper floating frame and the lower floating frame are fixed through a plurality of I-shaped frames, and the fixing mode is as follows: the I-shaped frame is provided with an upper layer sleeve corresponding to each upper layer floating pipe frame, a lower layer sleeve corresponding to each lower layer floating pipe frame and a connecting frame connected with each upper layer sleeve and each lower layer sleeve; the upper layer of the I-shaped frame is sleeved on the corresponding upper layer of the floating pipe frame, and the lower layer of the I-shaped frame is sleeved on the corresponding lower layer of the floating pipe frame.
In order to improve the stability of the longitudinal skeleton type main frame, as a preferred embodiment of the present invention: the space enclosed by each upper layer of floating pipe frame has the same horizontal section shape, and the central positions of the upper layer of floating pipe frames are overlapped; the space enclosed by each lower floating pipe frame has the same horizontal section shape, and the central positions of the lower floating pipe frames are overlapped; and the central position of the upper layer floating pipe frame and the central position of the lower layer floating pipe frame are positioned on a vertical straight line, and the I-shaped frames are uniformly arranged at intervals around the vertical straight line.
As a preferred embodiment of the present invention: the upper floating frame comprises the upper floating pipe frame, and the lower floating frame comprises the lower floating pipe frame; the I-shaped frame is correspondingly provided with one upper-layer sleeve and one lower-layer sleeve which are arranged in parallel, and the connecting frame of the I-shaped frame is a plate connected between the upper-layer sleeve and the lower-layer sleeve.
As a preferred embodiment of the present invention: the upper floating frame comprises two upper floating pipe frames, and the lower floating frame comprises two lower floating pipe frames; the I-shaped frame is correspondingly provided with two upper-layer sleeves and two lower-layer sleeves which are arranged in parallel, the connecting frame of the I-shaped frame is provided with five circulating pipes for water flow to pass through, and a plurality of connecting plates for connecting the two upper-layer sleeves, the two lower-layer sleeves and the five circulating pipes into a whole are arranged, wherein the five circulating pipes are parallel to the upper-layer sleeves and the lower-layer sleeves, the first circulating pipe is positioned between the two upper-layer sleeves, the second circulating pipe is positioned between the two lower-layer sleeves, the third circulating pipe is positioned between the upper-layer sleeves and the lower-layer sleeves which are positioned on the outer side, the fourth circulating pipe is positioned between the upper-layer sleeves and the lower-layer sleeves which are positioned on the inner side, and the fifth circulating pipe is positioned at the central positions of the other four circulating pipes.
As a preferred embodiment of the present invention: the upper floating frame comprises two upper floating pipe frames, and the lower floating frame comprises two lower floating pipe frames; the I-shaped frame is correspondingly provided with two upper-layer sleeves and two lower-layer sleeves which are arranged in parallel, the connecting frame of the I-shaped frame is provided with two circulating pipes for water flow to pass through, and a plurality of connecting plates for connecting the two upper-layer sleeves, the two lower-layer sleeves and the two circulating pipes into a whole are arranged, wherein the upper-layer sleeves on the outer side are tightly attached to the lower-layer sleeves, the upper-layer sleeves on the inner side are tightly attached to the lower-layer sleeves, one of the circulating pipes is positioned between the two upper-layer sleeves, and the other circulating pipe is positioned between the two lower-layer sleeves.
As a preferred embodiment of the present invention: the upper floating frame comprises two upper floating pipe frames, and the lower floating frame comprises one lower floating pipe frame; the I-shaped frame is correspondingly provided with two upper-layer sleeves and one lower-layer sleeve which are arranged in parallel, the connecting frame of the I-shaped frame is provided with three circulation pipes for water flow to pass through, and a plurality of connecting plates for integrally connecting the two upper-layer sleeves, the one lower-layer sleeves and the three circulation pipes, wherein the first circulation pipe is positioned between the two upper-layer sleeves, the second circulation pipe is positioned between the lower-layer sleeve and the upper-layer sleeve positioned on the outer side, and the third circulation pipe is positioned between the lower-layer sleeve and the upper-layer sleeve positioned on the inner side.
As a preferred embodiment of the present invention: the longitudinal framework type main framework is also provided with a barrier net supporting frame, the barrier net supporting frame is provided with handrail pipes and is provided with a T-shaped supporting piece corresponding to each I-shaped frame, wherein the T-shaped supporting piece is provided with a transverse two-way pipe fitting part and a supporting rod part of which the upper end is connected with the outer wall of the transverse two-way pipe fitting part; the top of each I-shaped frame is provided with a supporting base, the lower end of the supporting rod part of each T-shaped supporting piece is inserted into the supporting base of the corresponding I-shaped frame, and the transverse two-way pipe part of each T-shaped supporting piece is sleeved on the handrail pipe.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the longitudinal skeleton type main framework provided with the upper floating frame and the lower floating frame is adopted, the upper floating frame is enabled to float on the sea surface, the lower floating frame is enabled to sink under the sea surface, and the upper floating frame can be utilized to provide an operation platform, and meanwhile, the effects of increasing the vibration damping of the main framework, reducing the vibration amplitude and the inertia force of the main framework, greatly reducing the vibration amplitude of the upper floating frame and improving the natural frequency of the main framework can be achieved, so that the stability of the main framework can be enhanced, the impact displacement of waves to the main framework is reduced, the inertia force of the main framework moving along with the waves is effectively reduced, the inertial restoring force and the impact action of anchor ropes to the main framework are reduced, and the excessive loading of the anchor rope force to the framework is avoided;
secondly, the longitudinal skeleton type main framework is composed of a plurality of floating pipes, is firm and reasonable in structure and convenient to maintain, can realize different calibers, enables the water body for captive culture of the net cage to be large, and facilitates mechanized culture operation;
thirdly, the longitudinal frame type main framework uses a plurality of I-shaped frames as the base of the barrier net supporting frame, can effectively support the barrier net by the barrier net supporting frame, is not easy to topple under external acting force, and has higher stability;
fourthly, the upper floating frame and the lower floating frame are connected by the plurality of separated I-shaped frames, so that the impact of surface waves on the main frame can be reduced by utilizing the flow resistance effect of the lower floating frame through the coordination action of the I-shaped frames between the upper floating frame and the lower floating frame, and the damage action of the wave flow on the main frame can be minimized; and the upper floating frame and the lower floating frame can cooperatively bear the tension of the netting, so that the deformation of the netting in a wave current environment can be reduced.
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The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a front view of a first embodiment of the present invention;
FIG. 2 is a top view of a first embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a schematic structural diagram of an I-frame according to an embodiment of the present invention;
FIG. 5 is a front view of a second embodiment of the present invention;
FIG. 6 is a top view of a second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an I-shaped frame according to a second embodiment of the present invention;
FIG. 8 is a front view of a third embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an I-shaped frame according to a third embodiment of the present invention;
fig. 10 is a schematic structural view of an i-shaped frame in the fourth embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 10, the invention discloses a large deepwater net cage adopting a longitudinal frame type main framework, which is provided with the main framework, an anchoring system for anchoring the main framework and a netting hung below the main framework, and the invention conception is as follows: the adopted main framework is a longitudinal framework type main framework which is provided with an upper layer floating frame and a lower layer floating frame; the upper floating frame and the lower floating frame are fixed, and the lower floating frame is positioned below the upper floating frame; and under the condition that the large-scale deepwater net cage has no external force, namely the large-scale deepwater net cage is only acted by internal forces such as gravity (gravity of the longitudinal frame type main framework and gravity of the netting), buoyancy (buoyancy of the longitudinal frame type main framework) and anchoring tension of an anchoring system, the method has the advantages that: the upper floating frame of the longitudinal skeleton type main framework floats on the sea surface, and the lower floating frame is submerged below the sea surface.
Therefore, the longitudinal frame type main framework adopted by the invention can play the following roles in the large-scale deepwater net cage:
firstly, an upper floating frame floating on the sea can provide an operation platform;
secondly, because the ocean current force born by the lower floating frame submerged under the sea surface is smaller than the wave force born by the upper floating frame floating on the sea surface, the lower floating frame can cause certain resistance and buffer force to the wave response of the upper floating frame, namely, the vibration damping of the main frame is increased by utilizing the damping layer of the lower floating frame, the vibration amplitude and the inertia force of the main frame are reduced, in addition, the gravity center of the longitudinal frame type main frame is reduced compared with the main frame only provided with a single-layer floating frame floating on the sea surface in the prior art, the vibration amplitude of the upper floating frame is greatly reduced, in addition, the lower floating frame submerged under the sea surface can improve the natural frequency of the main frame, the natural frequency is far away from the excitation source frequency, the resonance probability among the main frame, the anchor ropes and the waves is reduced, and the motion response of the main frame is reduced, therefore, the stability of the main frame can be enhanced, the impact displacement of waves to the main frame is reduced, the inertia force of the main frame moving along with the waves is effectively reduced, the inertia restoring force and the impact effect of the anchor rope to the main frame are reduced, and the excessive loading of the anchor rope force to the frame is avoided.
On the basis of the above inventive concept, the present invention adopts the following preferred structure:
as a preferred embodiment of the present invention: under the condition that the large deepwater net cage has no external force, the upper floating frame is immersed in the seawater to a height which is between 1/2 and 3/5 of the total height of the upper floating frame.
In order to facilitate the adjustment of the buoyancy of the upper floating frame and the lower floating frame and to match the construction process of the existing deep water net cage floating frame to reduce the construction difficulty and the construction cost of the longitudinal skeleton type main framework, the invention is taken as a preferred embodiment:
the upper floating frame comprises at least one upper floating pipe frame 1 which is horizontally arranged, and for the case that the upper floating pipe frame comprises more than two upper floating pipe frames 1, the upper floating pipe frames 1 are sorted in an increasing order according to the horizontal section area of the enclosed space, and the previous upper floating pipe frame 1 is positioned in the enclosed space of the next upper floating pipe frame 1; the lower floating frame comprises at least one lower floating pipe frame 2 which is horizontally arranged, and for the condition that more than two lower floating pipe frames 2 are included, the lower floating pipe frames 2 are sorted in an increasing mode according to the horizontal section area of the enclosed space, and the former lower floating pipe frame 2 is positioned in the enclosed space of the latter lower floating pipe frame 2; the upper floating frame is fixed with the lower floating frame through a plurality of I-shaped frames 3, and the fixing mode is as follows: the I-shaped frame 3 is provided with an upper layer sleeve 31 corresponding to each upper layer floating pipe frame 1, a lower layer sleeve 32 corresponding to each lower layer floating pipe frame 2 and a connecting frame 33 connected with each upper layer sleeve 31 and each lower layer sleeve 32; the upper layer casing 31 of the I-shaped frame 3 is sleeved on the corresponding upper layer floating pipe frame 1, and the lower layer casing 32 is sleeved on the corresponding lower layer floating pipe frame 2.
In order to improve the stability of the longitudinal skeleton type main frame, as a preferred embodiment of the present invention: the space enclosed by each upper layer floating pipe frame 1 has the same horizontal section shape, and the central positions of the upper layer floating pipe frames 1 are overlapped; the space enclosed by each lower floating pipe frame 2 has the same horizontal section shape, and the central positions of the lower floating pipe frames 2 are overlapped; and the central position of the upper layer floating pipe frame 1 and the central position of the lower layer floating pipe frame 2 are positioned on a vertical straight line, and the I-shaped frames 3 are uniformly arranged at intervals around the vertical straight line.
As a preferred embodiment of the present invention: the longitudinal frame type main framework is also provided with a barrier net supporting frame, the barrier net supporting frame is provided with handrail tubes 4, and a T-shaped supporting piece 5 is arranged corresponding to each I-shaped frame 3, wherein the T-shaped supporting piece 5 is provided with a transverse two-way pipe part 51 and a supporting rod part 52 of which the upper end is connected with the outer wall of the transverse two-way pipe part 51; the top of each I-shaped frame 3 is provided with a supporting base 34, the lower end of the supporting rod part 52 of each T-shaped supporting piece 5 is inserted on the supporting base 34 of the corresponding I-shaped frame 3, and the transverse two-way pipe part 51 of each T-shaped supporting piece 5 is sleeved on the handrail pipe 4.
The above inventive concept is specifically illustrated below by four examples:
example one
As shown in fig. 1 to 4, the first embodiment of the present invention is based on the above inventive concept, and adopts the following specific schemes:
the upper floating frame comprises an upper floating pipe frame 1, and the lower floating frame comprises a lower floating pipe frame 2; the I-shaped frame 3 is correspondingly provided with an upper layer sleeve 31 and a lower layer sleeve 32 which are arranged in parallel, and the connecting frame 33 of the I-shaped frame 3 is a plate connected between the upper layer sleeve 31 and the lower layer sleeve 32.
The above inventive concept is specifically illustrated below by four examples:
example two
As shown in fig. 5 to 7, the second embodiment of the present invention is based on the above inventive concept, and adopts the following specific schemes:
the upper floating frame comprises two upper floating pipe frames 1, and the lower floating frame comprises two lower floating pipe frames 2; the I-shaped frame 3 is correspondingly provided with two upper-layer sleeves 31 and two lower-layer sleeves 32 which are arranged in parallel, the connecting frame 33 of the I-shaped frame 3 is provided with five circulating pipes 331 for water to pass through, and a plurality of connecting plates 332 which integrally connect the two upper-layer sleeves 31, the two lower-layer sleeves 32 and the five circulating pipes 331 are arranged, wherein the five circulating pipes 331 are parallel to the upper-layer sleeves 31 and the lower-layer sleeves 32, the first circulating pipe 331 is positioned between the two upper-layer sleeves 31, the second circulating pipe 331 is positioned between the two lower-layer sleeves 32, the third circulating pipe 331 is positioned between the upper-layer sleeve 31 and the lower-layer sleeve 32 which are positioned at the outer side, the fourth circulating pipe 331 is positioned between the upper-layer sleeve 31 and the lower-layer sleeve 32 which are positioned at the inner side, and the fifth circulating pipe 331 is positioned at the center of the rest four circulating pipes 331.
EXAMPLE III
As shown in fig. 8 and 9, the third embodiment of the present invention is based on the above inventive concept, and adopts the following specific schemes:
the upper floating frame comprises two upper floating pipe frames 1, and the lower floating frame comprises two lower floating pipe frames 2; the I-shaped frame 3 is correspondingly provided with two upper-layer sleeves 31 and two lower-layer sleeves 32 which are arranged in parallel, the connecting frame 33 of the I-shaped frame 3 is provided with two circulating pipes 331 for water to pass through, and a plurality of connecting plates 332 for connecting the two upper-layer sleeves 31, the two lower-layer sleeves 32 and the two circulating pipes 331 into a whole are arranged, wherein the upper-layer sleeve 31 on the outer side is closely attached to the lower-layer sleeve 32, the upper-layer sleeve 31 on the inner side is closely attached to the lower-layer sleeve 32, one circulating pipe 331 is positioned between the two upper-layer sleeves 31, and the other circulating pipe 331 is positioned between the two lower-layer sleeves 32.
Example four
As shown in fig. 10, the fourth embodiment of the present invention is based on the above inventive concept, and adopts the following specific scheme:
the upper floating frame comprises two upper floating pipe frames 1, and the lower floating frame comprises a lower floating pipe frame 2; the I-shaped frame 3 is correspondingly provided with two upper-layer sleeves 31 and a lower-layer sleeve 32 which are arranged in parallel, the connecting frame 33 of the I-shaped frame 3 is provided with three circulating pipes 331 for water to pass through, and a plurality of connecting plates 332 for integrally connecting the two upper-layer sleeves 31, the lower-layer sleeve 32 and the three circulating pipes 331, wherein the first circulating pipe 331 is positioned between the two upper-layer sleeves 31, the second circulating pipe 331 is positioned between the lower-layer sleeve 32 and the upper-layer sleeve 31 positioned on the outer side, and the third circulating pipe 331 is positioned between the lower-layer sleeve 32 and the upper-layer sleeve 31 positioned on the inner side.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the invention as described above, according to the common technical knowledge and conventional means in the field. For example: the horizontal cross-sectional shape of the space enclosed by the upper floating pipe frame 1 and the lower floating pipe frame 2 can be circular, square, triangular and the like.

Claims (5)

1. A large deepwater net cage adopting a longitudinal framework type main framework is provided with the main framework, an anchoring system for anchoring the main framework and a netting hung below the main framework, and is characterized in that: the main framework is a longitudinal framework type main framework which is provided with an upper layer floating frame and a lower layer floating frame; the upper floating frame and the lower floating frame are fixed, and the lower floating frame is positioned below the upper floating frame; under the condition that the large deepwater net cage has no external force, the upper floating frame of the longitudinal skeleton type main framework floats on the sea surface, and the lower floating frame of the longitudinal skeleton type main framework sinks under the sea surface;
the upper floating frame in the large-scale deepwater net cage comprises more than two upper floating pipe frames (1) which are horizontally arranged, and the upper floating pipe frames (1) are sequentially arranged in an increasing way according to the horizontal cross-sectional area of the enclosed space, so that the previous upper floating pipe frame (1) is positioned in the enclosed space of the next upper floating pipe frame (1);
the lower floating frame comprises more than two lower floating pipe frames (2) which are horizontally arranged, the lower floating pipe frames (2) are sequentially arranged in an increasing mode according to the horizontal cross-sectional area of the enclosed space, and the former lower floating pipe frame (2) is located in the space enclosed by the latter lower floating pipe frame (2);
the upper floating frame and the lower floating frame are fixed through a plurality of I-shaped frames (3), and the fixing mode is as follows: the I-shaped frame (3) is provided with an upper layer sleeve (31) corresponding to each upper layer floating pipe frame (1), a lower layer sleeve (32) corresponding to each lower layer floating pipe frame (2), and a connecting frame (33) connected with each upper layer sleeve (31) and each lower layer sleeve (32); an upper layer sleeve (31) of the I-shaped frame (3) is sleeved on the corresponding upper layer floating pipe frame (1), and a lower layer sleeve (32) is sleeved on the corresponding lower layer floating pipe frame (2);
in the large deepwater net cage, the space enclosed by each upper floating pipe frame (1) has the same horizontal section shape, and the central positions of the upper floating pipe frames (1) are overlapped; the space enclosed by each lower floating pipe frame (2) has the same horizontal cross section shape, and the center positions of the lower floating pipe frames (2) are overlapped; and the central position of the upper layer floating pipe frame (1) and the central position of the lower layer floating pipe frame (2) are positioned on a vertical straight line, and the I-shaped frames (3) are uniformly arranged at intervals around the vertical straight line.
2. The large-scale deepwater net cage according to claim 1, characterized in that: under the condition that the large deepwater net cage has no external force, the upper floating frame is immersed in the seawater to a height of 1/2-3/5 of the total height of the upper floating frame.
3. The large-scale deepwater net cage according to claim 1, characterized in that: the I-shaped frame (3) is correspondingly provided with two upper-layer sleeves (31) and two lower-layer sleeves (32) which are arranged in parallel, a connecting frame (33) of the I-shaped frame (3) is provided with five circulating pipes (331) for water flow to pass through, and a plurality of connecting plates (332) for integrally connecting the two upper-layer sleeves (31), the two lower-layer sleeves (32) and the five circulating pipes (331), wherein the five circulating pipes (331) are parallel to the upper-layer sleeves (31) and the lower-layer sleeves (32), the first circulating pipe (331) is positioned between the two upper-layer sleeves (31), the second circulating pipe (331) is positioned between the two lower-layer sleeves (32), the third circulating pipe (331) is positioned between the upper-layer sleeve (31) and the lower-layer sleeve (32) which are positioned on the outer side, and the fourth circulating pipe (331) is positioned between the upper-layer sleeve (31) and the lower-layer sleeve (32) which are positioned on the inner side, the fifth flow tube (331) is positioned at the center of the remaining four flow tubes (331).
4. The large-scale deepwater net cage according to claim 1, characterized in that: the I-shaped frame (3) is correspondingly provided with two upper-layer sleeves (31) and two lower-layer sleeves (32) which are arranged in parallel, a connecting frame (33) of the I-shaped frame (3) is provided with two circulating pipes (331) for water flow to pass through, and a plurality of connecting plates (332) which connect the two upper-layer sleeves (31), the two lower-layer sleeves (32) and the two circulating pipes (331) into a whole are arranged, wherein the upper-layer sleeves (31) on the outer side are tightly attached to the lower-layer sleeves (32), the upper-layer sleeves (31) on the inner side are tightly attached to the lower-layer sleeves (32), one of the circulating pipes (331) is positioned between the two upper-layer sleeves (31), and the other circulating pipe (331) is positioned between the two lower-layer sleeves (32).
5. The large-scale deepwater net cage according to claim 1, characterized in that: the longitudinal frame type main framework is further provided with a barrier net supporting frame, the barrier net supporting frame is provided with handrail pipes (4), a T-shaped supporting piece (5) is arranged corresponding to each I-shaped frame (3), and the T-shaped supporting piece (5) is provided with a transverse two-way pipe part (51) and a supporting rod part (52) of which the upper end is connected with the outer wall of the transverse two-way pipe part (51); the top of each I-shaped frame (3) is provided with a supporting base (34), the lower end of a supporting rod part (52) of each T-shaped supporting piece (5) is inserted into the supporting base (34) of the corresponding I-shaped frame (3), and a transverse two-way pipe part (51) of each T-shaped supporting piece (5) is sleeved on the handrail pipe (4).
CN201710417214.2A 2017-06-06 2017-06-06 Large deepwater net cage adopting longitudinal framework type main framework Expired - Fee Related CN107182877B (en)

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CN107787893A (en) * 2017-10-27 2018-03-13 中国水产科学研究院南海水产研究所 Deep water mesh cage I-shaped link and double floating pipe type net cage frame construction maintenance methods

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CN106614197A (en) * 2016-12-24 2017-05-10 北海市铁山港区石头埠丰顺养殖有限公司 Wave-resisting net cage framework

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