CN111316946A - Water injection rotating net horizontal floating type net cage and application and catching and lifting tool thereof - Google Patents
Water injection rotating net horizontal floating type net cage and application and catching and lifting tool thereof Download PDFInfo
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- CN111316946A CN111316946A CN202010240498.4A CN202010240498A CN111316946A CN 111316946 A CN111316946 A CN 111316946A CN 202010240498 A CN202010240498 A CN 202010240498A CN 111316946 A CN111316946 A CN 111316946A
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- 238000007667 floating Methods 0.000 title claims abstract description 130
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000009360 aquaculture Methods 0.000 claims abstract description 131
- 244000144974 aquaculture Species 0.000 claims abstract description 131
- 238000012258 culturing Methods 0.000 claims description 9
- 238000009395 breeding Methods 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009364 mariculture Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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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
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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
- A01K61/65—Connecting or mooring devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
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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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a water injection rotating net horizontal floating type aquaculture net cage, which adopts a cylindrical structure and is provided with a horizontally arranged birdcage-shaped frame, wherein the inner side of the frame is provided with a netting, the frame is formed by pipes with closed inner cavities, and the frame generates buoyancy to enable the aquaculture net cage to float on the water surface and be in an aquaculture working condition; all the pipes forming the frame are circumferentially divided into at least three equal parts, each part of pipe is mutually communicated to form a closed space, and each closed space is provided with two water and gas inlet and outlet valves. The invention also discloses application of the net cage and a catching and lifting tool. The invention utilizes the closed space of the frame pipe to lead the breeding net cage to float on the water surface, thereby saving the peripheral main floating platform structure; by means of water injection and drainage in the culture net cage frame pipe, not only can the net be sunned through the net transfer, the problem of breeding of marine organisms is solved, but also the culture net cage can be put down to the seabed to avoid storms and red tides, and the culture net cage is suitable for offshore deep water severe sea conditions.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a water injection rotating net horizontal floating type net cage and application thereof as well as a catching and lifting tool.
Background
At present, marine culture, particularly offshore deepwater culture, mainly focuses on the culture of marine fishes (or finfish), offshore deepwater culture still mainly uses a netting casing wall structure as a main part and uses a floating culture platform as an auxiliary part, wherein the structural forms of net cages comprise a gravity net cage, an anchor tension net cage, a semi-rigid net cage, a tension leg net cage, a mooring-free net cage and the like. The main structural forms of the floating culture platform are a semi-submersible culture platform and a structure of a floating body supporting culture net cage.
In recent years, the cage technology in China has been rapidly developed and is gradually popularized and applied. However, the existing net cages have great defects in wind wave resistance and water flow resistance, and are difficult to be really applied to completely open sea areas, and related enterprises are developing and developing large steel culture platforms in various forms in order to realize mariculture under offshore deep water severe sea conditions.
At present, mariculture mostly adopts the fish raft form or supports gravity type box with simple and easy stake pole, can't realize shining the net, and the netting is very easily attached to marine organism, and stained problem can't be solved, breeds a period of time after, must change the netting, has increased work load and breed cost.
In 2018, 8 and 17, patent document CN108401954A discloses a rotatable sea fish aquaculture net cage and an underwater fishing net cleaning method thereof, wherein the net cage can rotate, so that net drying is realized, and the problem that sea organisms are attached to the underwater fishing net can be solved. But this box with a net can't promote at the in-process of catching, leads to catching the operation loaded down with trivial details, extravagant manpower, and economic nature is not good.
Disclosure of Invention
The invention provides a water injection net-transfer horizontal floating type net cage which can realize net transfer and net sunning and can also lower a culture net cage to the seabed so as to avoid storms and red tides and adapt to offshore deep water severe sea conditions, a self-floating offshore culture platform adopting the net cage and a catching and lifting tool for the net cage, aiming at solving the technical problems in the prior art.
The first technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a water injection rotating net horizontal floating type aquaculture net cage adopts a cylindrical structure, is provided with a horizontally arranged birdcage-shaped frame, the inner side of the frame is provided with a net, the frame is formed by pipes with closed inner cavities, and the frame generates buoyancy to enable the aquaculture net cage to float on the water surface and be in an aquaculture working condition; all the pipes forming the frame are circumferentially divided into at least three equal parts, each part of pipe is mutually communicated to form a closed space, and each closed space is provided with two water and gas inlet and outlet valves.
The outlines of the two ends of the aquaculture net cage are in a spherical shell shape or a frustum shape.
The second technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the single-point mooring self-floating offshore aquaculture platform adopting the aquaculture net cage comprises the aquaculture net cage, a floating body platform connected with the aquaculture net cage, and mooring cables of the aquaculture net cage and the floating body platform, wherein one end of each mooring cable is connected with the aquaculture net cage or the floating body platform, and the other end of each mooring cable is fixed on the sea bottom through a positioning anchor or a heavy object.
The aquaculture net cage and the floating body platform are respectively provided, the center of one end part of the aquaculture net cage is connected with the floating body platform through a swivel I and a mooring rope I, and the center of the other end part of the aquaculture net cage is connected with one end of the mooring rope through a swivel II.
The floating body platform is provided with a plurality of serially connected aquaculture net cages, two aquaculture net cages which are adjacently and serially connected are connected through a rotating ring III and a mooring rope III, the center of one end part of each aquaculture net cage string is connected with the floating body platform through a rotating ring IV and the mooring rope IV, and the center of the other end part of each aquaculture net cage string is connected with one end of the mooring rope through a rotating ring V.
The floating body platform is provided with one floating body platform, two ends of one side of the floating body platform are respectively connected with a culture net cage string which is out of the floating body platform through a rotating ring VI and a mooring rope VI, the other side of the floating body platform is connected with one end of the mooring rope VII through a rotating ring VII, each culture net cage string is provided with a plurality of culture net cages which are connected in series, and two adjacent culture net cages which are connected in series are connected through a rotating ring VIII and a mooring rope VIII.
The third technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the pile positioning self-floating offshore aquaculture platform adopting the aquaculture net cage comprises the aquaculture net cage, a floating body platform connected with the aquaculture net cage, and positioning piles connected with the floating body platform and the floating body platform.
The center of one end of the aquaculture net cage is connected with the floating body platform through a swivel a and a mooring cable a, the center of the other end of the aquaculture net cage is connected with a sleeve a through a swivel b and a mooring cable a, and the sleeve a is sleeved on the positioning pile.
The positioning piles are at least two rows, each row of positioning piles is provided with a plurality of positioning piles, one aquaculture net box is arranged between every two adjacent positioning piles in the same row, the end part of each aquaculture net box is connected with a sleeve b through a swivel c and a mooring cable b, the sleeve b is sleeved on the corresponding positioning pile, one floating body platform is connected between the two positioning piles at the tail or the head of the row, the two sides of the floating body platform are connected with the sleeve c through a swivel d and a mooring cable c, and the sleeve c is sleeved on the corresponding positioning pile.
The fourth technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a tool for catching and lifting the aquaculture net cage comprises two floating support air bags and two auxiliary air bags, wherein the two floating support air bags are arranged in parallel, two ends of each floating support air bag are aligned, the two floating support air bags are connected together through a plurality of floating support cables perpendicular to the floating support air bags, the two auxiliary air bags are respectively symmetrically arranged on the outer sides of the two floating support air bags in parallel, and the adjacent floating support air bags and the auxiliary air bags are connected together through a plurality of auxiliary cables perpendicular to the floating support air bags; before the fishing and lifting, the floating support ropes are wrapped at the bottom of the aquaculture net cage, the two floating support airbags are respectively hung on the corresponding auxiliary airbags through the corresponding auxiliary ropes, the auxiliary airbags float on the water surface, the section of the tool is U-shaped, and the size of the opening of the U-shape is larger than the diameter of the aquaculture net cage;
after the fishing and lifting are carried out, the floating support air bag floats to the water surface, and the cultivation net cage is supported to the fishing working condition.
The floating support air bag is inflated and deflated, so that the lifting and descending of the aquaculture net cage can be realized.
The invention has the advantages and positive effects that:
firstly), water is injected and drained in the frame pipe of the aquaculture net cage, so that not only can the net be sunned by changing the net and the breeding problem of marine organisms be solved, but also the aquaculture net cage can be put down to the seabed to avoid storms and red tides, and the aquaculture net cage is suitable for offshore deep water severe sea conditions.
And secondly) the closed space of the frame pipe is utilized to enable the aquaculture net cage to float on the water surface, and the aquaculture net cage floats, so that a main floating platform structure at the periphery is saved, and a large amount of investment can be saved.
And thirdly) compared with the vertical aquaculture net cage, when the platform is built, single-point mooring is adopted to replace multi-point mooring, so that the cost can be saved.
Fourthly) the cultivation net cage can be lifted to a position convenient for catching by using a lifting tool which can be repeatedly used, and a lifting system adopting a plurality of winches can be saved, so that a large amount of investment can be saved.
Fifthly), whether the single-point mooring culture platform or the pile positioning culture platform is adopted, the scale recombination is convenient, the scale enlargement or the scale reduction is very convenient, more culture net cages can be built and distributed under the condition of the same investment scale, and the economy is good.
Drawings
FIG. 1 is a schematic structural diagram of a first single point mooring self-floating offshore culture platform of a horizontal floating culture cage adopting a water injection net transfer mechanism;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a front view of a first single point mooring self-floating offshore aquaculture net cage of the present invention employing a water injection net transfer horizontal floating aquaculture net cage in a submerged condition;
FIG. 5 is a schematic structural diagram of a second single point mooring self-floating offshore culturing platform adopting the water injection net transfer horizontal floating type culturing net cage;
FIG. 6 is a schematic structural diagram of a third single-point mooring self-floating offshore culturing platform adopting the water injection net transfer horizontal floating type culturing net cage;
in fig. 1 to 6: 1. a culture net cage; 2. a buoyant platform; 3. mooring a cable; 4. a swivel I; 5. a mooring line; 6. and a rotating ring II.
FIG. 7 is a schematic structural diagram of a self-floating offshore culture platform positioned by a first pile of a water injection rotating net horizontal floating type culture net cage according to the invention;
FIG. 8 is a schematic structural diagram of a second pile-positioned self-floating offshore aquaculture net cage adopting the water injection net-rotating horizontal floating aquaculture net cage according to the invention;
in fig. 7 to 8: 1. a culture net cage; 2. a buoyant platform; 3. a mooring line a; 4. a rotating ring a; 5. a mooring rope a; 6. a swivel b; 7. positioning the pile; 8. a sleeve a.
FIG. 8-1 is a first schematic view of the platform shown in FIG. 8 for avoiding a platform under the combined action of wind, wave and current;
FIG. 8-2 is a schematic view of a second stage of the platform shown in FIG. 8 under the combined action of wind, wave and current;
FIG. 8-3 is a third schematic view of platform avoidance of the platform shown in FIG. 8 under the combined action of wind, wave and current;
FIG. 8-4 is a fourth schematic view of platform avoidance of the platform shown in FIG. 8 under the combined action of wind, wave and current;
in FIGS. 8-1 to 8-4: the direction shown by the arrow is the comprehensive action direction of the wind wave flow.
FIG. 9 is a schematic structural view of the deployed state of the catching and lifting tool for the water injection net-rotating horizontal floating type aquaculture net cage;
FIG. 10 is a side view of the fishing lift tool for water flooding net-rotating horizontal floating aquaculture net cages of the present invention prior to lifting in the application of the platform of FIG. 1;
fig. 11 is a side view of the fishing and lifting tool for the water injection net-rotating horizontal floating type aquaculture net cage of the present invention after lifting in the application of the platform shown in fig. 1.
In fig. 9 to 11: 9. an auxiliary air bag; 10. a floating airbag; 11. a buoyant rope; 12. an auxiliary rope.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 4, a water injection rotating net horizontal floating type aquaculture net cage 1 adopts a cylindrical structure, and is provided with a horizontally arranged birdcage-shaped frame, a net is arranged on the inner side of the frame, the frame is formed by pipes with closed inner cavities, and the frame generates buoyancy to enable the aquaculture net cage to float on the water surface and be in an aquaculture working condition; all the pipes forming the frame are circumferentially divided into at least three equal parts, each part of pipe is mutually communicated to form a closed space, and each closed space is provided with two water and gas inlet and outlet valves.
In order to improve the overall rigidity of the structure of the aquaculture net cage 1, the outlines of the two ends of the aquaculture net cage can be made into a spherical shell shape or a frustum shape, and the aquaculture net cage is spherical shell shaped in the embodiment.
The frame is made of metal or nonmetal tubular materials, the inner cavity of the tube is sealed from the outside, the cultivation net cage 1 floats on the water surface by utilizing buoyancy generated by the frame, and a part of the cultivation net cage 1 is exposed on the water surface to form a cultivation working condition. The internal space of the frame pipe is divided into a plurality of mutually independent closed spaces, each closed space is provided with a water and gas inlet and outlet valve, and the gravity center position of the aquaculture net cage can be changed by opening/closing the valves and injecting or discharging water into different closed spaces, so that the rotary net drying of the aquaculture net cage is realized. The closed space can be filled with water, so that the aquaculture net cage is completely submerged in the water to avoid red tide or typhoon, and the water discharged from the closed space after a disaster is over is discharged to recover the aquaculture working condition. The water injection and drainage system and its operation belong to the conventional technology in the technical field, and are not described herein again.
To sum up, the aquaculture net cage 1 can float on the water surface, can adapt to offshore deep water severe sea conditions, can realize the rotary airing of the aquaculture net cage 1, is good in economical efficiency, and is a aquaculture net cage with better functions.
The following exemplifies the application of the aquaculture net cage:
one) single point mooring self-floating offshore culture platform
Referring to fig. 1 to 6, the single point mooring self-floating offshore culture platform using the culture cage comprises the culture cage 1, a floating platform 2 connected with the culture cage, and mooring cables 3, wherein one end of each mooring cable 3 is connected with the culture cage 1 or the floating platform 2, and the other end is fixed on the sea bottom through a positioning anchor or a heavy object.
Regarding the specific structure of the single point mooring self-floating offshore culture platform, three specific schemes are listed below:
referring to fig. 1 to 4, the aquaculture net cage 1 and the floating platform 2 are respectively provided, the center of one end of the aquaculture net cage 1 is connected with the floating platform 2 through a swivel i 4 and a mooring rope i 5, and the center of the other end of the aquaculture net cage 1 is connected with one end of the mooring rope 3 through a swivel ii 6.
The aquaculture net cage 1 forms single-point mooring through the mooring cable 3, the swivel II 6 is used for preventing the mooring cable 3 from twisting and winding, and a section of anchor chain can be additionally arranged between the mooring cable 3 and a positioning anchor or a heavy object according to the environment requirement so as to increase the flexibility and the elastic buffering capacity of mooring. The other end of the aquaculture net cage is provided with a floating body platform 2, the floating body platform 2 is connected to the center of the end part of the aquaculture net cage 1 through a swivel I4 and a mooring rope I5, the floating body platform 2 is in single-point mooring swing along with the aquaculture net cage 1 under the action of the mooring rope I5, and the swivel I4 is used for preventing the mooring rope I5 from twisting and winding. The floating body platform 2 is provided with necessary auxiliary equipment such as power generation equipment, culture monitoring facilities, culture net cage water pressure load regulation and control equipment, fire fighting, lifesaving, light, signals and the like. Meanwhile, the floating body platform 2 is used as a platform for berthing the cultivation worker ship and is provided with berthing facilities.
Referring to fig. 5, in a second specific structure of a single-point mooring self-floating offshore culture platform, there is one floating body platform 2, a plurality of culture net cages 1 are connected in series, two adjacent culture net cages 1 connected in series are connected through a swivel iii and a mooring rope iii, the center of one end of each culture net cage string is connected with the floating body platform 2 through a swivel iv and the mooring rope iv, and the center of the other end of each culture net cage string is connected with one end of the mooring rope 3 through a swivel v. The culture capacity can be enlarged compared with the first structure.
Referring to fig. 6, one floating platform 2 is provided, two ends of one side of the floating platform 2 are respectively connected with a nearby aquaculture net cage string through a swivel vi and a mooring cable vi, the other side of the floating platform 2 is connected with one end of a mooring cable 3 through a swivel vii and a mooring cable vii, each aquaculture net cage string is provided with a plurality of aquaculture net cages 1 connected in series, and two aquaculture net cages connected in series adjacently are connected through a swivel viii and a mooring cable viii. The culture capacity can be enlarged compared with the second structure.
Two) pile positioning self-floating offshore breeding platform
Referring to fig. 7 to 8, the pile positioning self-floating offshore aquaculture platform adopting the aquaculture net cage comprises the aquaculture net cage 1, a floating platform 2 connected with the aquaculture net cage, and positioning piles 7 connected with the floating platform and the floating platform.
With regard to the specific structure of the pile-positioned self-floating offshore farm platform, two specific solutions are listed below:
referring to fig. 7, the aquaculture net cage 1 and the floating platform 2 are respectively positioned, the center of one end of the aquaculture net cage 1 is connected with the floating platform 2 through a swivel a4 and a mooring cable a5, the center of the other end of the aquaculture net cage 1 is connected with a sleeve a8 through a swivel b6 and a mooring cable a3, and the sleeve a8 is sleeved on the positioning pile 7.
The single-point mooring of the culture platform replaces a positioning anchor or a heavy object with a positioning pile, and has the outstanding advantages that the horizontal length of the single-point mooring cable of the culture net cage is greatly shortened compared with that of the positioning anchor or the heavy object, the minimum length can be shortened to several meters, the horizontal swept area of the culture net cage is greatly reduced, the pile is used as a single-point mooring fixing point in the sea area with the same area, and more culture platforms can be arranged.
Referring to fig. 8, the positioning piles 7 are positioned in at least two rows, each row of positioning piles 7 is provided with a plurality of positioning piles, the aquaculture net cage 1 is arranged between two adjacent positioning piles 7 in the same row, the end part of the aquaculture net cage 1 is connected with a sleeve b through a swivel c and a mooring cable b, and the sleeve b is sleeved on the corresponding positioning pile 7; the floating body platform 1 is connected between two positioning piles 7 positioned at the tail or head of a row, two sides of the floating body platform 1 are connected with sleeves c through swivel d and mooring cables c, and the sleeves c are sleeved on the corresponding positioning piles 7. In the scheme, the positioning pile group is in an equilateral triangle, each positioning pile is positioned on the vertex of the equilateral triangle, the interval between each positioning pile and the adjacent positioning piles in the same row and the interval between the positioning piles which are closest to the positioning piles in different rows meet the requirement that the aquaculture net cages do not contact with each other when rotating under the comprehensive action of stormy waves and currents, please refer to fig. 8-3, and the circular area is the flat sweeping area of the aquaculture net cages inside the aquaculture net cages.
The method comprises the steps of mooring and fixing the aquaculture net cages between two positioning piles end to form a positioning aquaculture mode, arranging a plurality of positioning aquaculture net cages by using the array positioning piles, untying mooring ropes at the same ends of all the aquaculture net cages when typhoons come or need (such as catching), using the mooring ropes at the other ends as single-point mooring to avoid the cages for survival, please refer to figures 8-1-8-4, and readjusting to positioning aquaculture after the typhoons pass. The structure can greatly improve the culture capacity of unit water surface.
In order to realize the catching and lifting, the invention also provides a tool for the catching and lifting of the aquaculture net cage, please refer to fig. 9-11, which comprises two floating support airbags 10 and two auxiliary airbags 9, wherein the two floating support airbags 10 are arranged in parallel, two ends of the two floating support airbags are aligned, the two floating support airbags are connected together through a plurality of floating support cables 11 perpendicular to the two floating support airbags 10, the two auxiliary airbags 9 are respectively and symmetrically arranged at the outer sides of the two floating support airbags 10 in parallel, and the adjacent floating support airbags 10 and the auxiliary airbags 9 are connected together through a plurality of auxiliary cables 12 perpendicular to the two auxiliary airbags 10.
Before the fishing and lifting, the floating support ropes 11 are wrapped at the bottom of the aquaculture net cage 1, the two floating support airbags 10 are respectively hung on the corresponding auxiliary airbags 9 through the corresponding auxiliary ropes 12, the auxiliary airbags 9 float on the water surface, the cross section of the tool is U-shaped, and the size of the opening of the U-shape is larger than the diameter of the aquaculture net cage 1; after the fishing and lifting are carried out, the floating support air bag 10 floats to the water surface, and the cultivation net cage 1 is supported to the fishing working condition.
When the fishing operation is carried out, the culture net cage 1 is lifted to a preset height by using the tool so as to facilitate the fishing operation.
The lifting operation process of the aquaculture net cage is as follows: the float airbag 10 and the assist airbag 9 are connected by the assist rope 12 and the float rope 11, respectively, and the connected tool is shown in fig. 9. Putting the lifting tool into the sea, filling the auxiliary air bag 9 with gas and floating on the water surface, discharging the floating air bag 10 until the gravity is larger than the buoyancy and sinking in the water, and hanging the floating air bag under the auxiliary air bag 9, wherein the section of the lifting tool is U-shaped at the moment; the method comprises the steps of longitudinally placing a lifting tool along the aquaculture net cage 1 on one side of the aquaculture net cage 1 and a floating body platform 2, drawing two auxiliary air bags 9 to two sides of the aquaculture net cage 1, filling compressed air into the floating air bags 10, floating the two floating air bags 10 and respectively abutting against the bottom of the aquaculture net cage 1, adjusting the positions of the two floating air bags 10 to be symmetrically arranged on two sides of the bottom of the aquaculture net cage, supporting the aquaculture net cage 1 by floating ropes 11, lifting the aquaculture net cage 1 to a catching height along with the inflation of the floating air bags 10, carrying out catching operation, opening air discharge valves of the floating air bags 10 to discharge air inside the aquaculture net cage 1 after catching is finished, sinking the aquaculture net cage 1 to a position of an aquaculture working condition to float, and drawing out and recycling the lifting tool along the longitudinal direction of the aquaculture net cage 1 after the floating air bags 10 are separated from.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. A water injection rotating net horizontal floating type aquaculture net cage is characterized in that the aquaculture net cage is of a cylindrical structure and is provided with a horizontally arranged birdcage-shaped frame, a net is arranged on the inner side of the frame, the frame is composed of pipes with closed inner cavities, and the frame generates buoyancy to enable the aquaculture net cage to float on the water surface and be in an aquaculture working condition; all the pipes forming the frame are circumferentially divided into at least three equal parts, each part of pipe is mutually communicated to form a closed space, and each closed space is provided with two water and gas inlet and outlet valves.
2. The water injection net-rotating horizontal floating aquaculture net cage according to claim 1, wherein the profiles of the two ends of the aquaculture net cage are of a spherical shell type or a frustum type.
3. A single point mooring self-floating offshore aquaculture platform using the aquaculture net cage of claim 1, comprising said aquaculture net cage and a buoyant platform connected thereto and their mooring lines, one end of said mooring lines being connected to said aquaculture net cage or said buoyant platform and the other end being anchored to the sea floor by means of mooring anchors or weights.
4. The single point mooring self-floating offshore farm platform according to claim 3, wherein the farm cage and the buoyant platform are each one, and wherein the farm cage is connected to the buoyant platform at one center end thereof via a swivel I and a mooring line I, and at the other center end thereof via a swivel II to one end of the mooring line.
5. The single point mooring self-floating offshore aquaculture platform of claim 3, wherein one of said buoyant platforms, said aquaculture net cages are connected in series, two of said aquaculture net cages connected in series are connected by a swivel III and a mooring cable III, the center of one end of the string of aquaculture net cages is connected to said buoyant platform by a swivel IV and said mooring cable IV, and the center of the other end of the string of aquaculture net cages is connected to one end of said mooring cable by a swivel V.
6. The single point mooring self-floating offshore culturing platform according to claim 3, wherein one floating platform is provided, two ends of one side of the floating platform are respectively connected with a culturing net cage string which is arranged aside through a swivel VI and the mooring rope VI, the other side of the floating platform is connected with one end of the mooring rope through the swivel VII and the mooring rope VII, each culturing net cage string is provided with a plurality of culturing net cages which are connected in series, and two culturing net cages which are connected in series adjacently are connected through the swivel VIII and the mooring rope VIII.
7. A self-floating offshore aquaculture platform with stakes for use with the aquaculture cage of claim 1, including said aquaculture cage and float platform connected thereto and stakes connected thereto.
8. The pile-positioned self-floating offshore aquaculture platform of claim 7, wherein said aquaculture cage and said buoyant platform are each one, and wherein said aquaculture cage is connected to said buoyant platform at one end center by swivel a and mooring line a, and at the other end center by swivel b and mooring line a, and said sleeve a is sleeved on said positioning pile.
9. The pile-positioned self-floating offshore aquaculture platform of claim 7, wherein said spuds are positioned in at least two rows, each row of spuds is multiple, one of said aquaculture net cages is positioned between two adjacent spuds in the same row, the ends of said aquaculture net cages are connected to sleeves b by swivel c and mooring cables b, said sleeves b are sleeved on the corresponding spuds,
the floating body platform is connected between two positioning piles at the tail or head of the line, two sides of the floating body platform are connected with sleeves c through swivel d and mooring cables, and the sleeves c are sleeved on the corresponding positioning piles.
10. The tool for catching and lifting the aquaculture net cage according to claim 1, which comprises two floatation air bags and two auxiliary air bags, wherein the two floatation air bags are arranged in parallel and aligned at two ends and are connected together through a plurality of floatation cables perpendicular to the floatation air bags, the two auxiliary air bags are respectively symmetrically arranged at the outer sides of the two floatation air bags in parallel, and the adjacent floatation air bags and the auxiliary air bags are connected together through a plurality of auxiliary cables perpendicular to the floatation air bags;
before the fishing and lifting, the floating support ropes are wrapped at the bottom of the aquaculture net cage, the two floating support airbags are respectively hung on the corresponding auxiliary airbags through the corresponding auxiliary ropes, the auxiliary airbags float on the water surface, the section of the tool is U-shaped, and the size of the opening of the U-shape is larger than the diameter of the aquaculture net cage;
after the fishing and lifting are carried out, the floating support air bag floats to the water surface, and the cultivation net cage is supported to the fishing working condition.
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| CN202010240498.4A CN111316946A (en) | 2020-03-31 | 2020-03-31 | Water injection rotating net horizontal floating type net cage and application and catching and lifting tool thereof |
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| CN202010240498.4A CN111316946A (en) | 2020-03-31 | 2020-03-31 | Water injection rotating net horizontal floating type net cage and application and catching and lifting tool thereof |
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Application publication date: 20200623 |