CN110178775A - Reduce the off-lying sea aquaculture net cage of security risk - Google Patents
Reduce the off-lying sea aquaculture net cage of security risk Download PDFInfo
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- CN110178775A CN110178775A CN201910565578.4A CN201910565578A CN110178775A CN 110178775 A CN110178775 A CN 110178775A CN 201910565578 A CN201910565578 A CN 201910565578A CN 110178775 A CN110178775 A CN 110178775A
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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 kind of off-lying sea aquaculture net cages for reducing security risk.The net cage is made of 6 parts: first is that the cyclic annular watertight floating cabinet being made of steel (or armored concrete) material, referred to as net cage unit；Second is that the articulating members that these net cage units are connected, referred to as articulation piece；Third is that setting cultivates the netting gear of all kinds of aquatic products in the intermediate waters of cyclic annular buoyancy tank；Fourth is that annular float center is the central floating body for being equipped with the equipment such as power station, pump room, cargo tank, pipeline and administrative staff's work, accommodation, referred to as central island；Fifth is that " ballast-dive-floating system " that is made of air hose, ballast system；Sixth is that the mooring system being made of the equipment such as anchor, anchor chain, winch or component, can be tied to seabed for entire net cage.This whole system is known as net cage module.Several such net cage modules form large-scale fishing ground.
Description
This case is with the applying date on May 17th, 2016, entitled " a kind of outer application No. is 201610326463.6
The divisional application that the patent of invention of sea cultivation wind resistance wave type radial type net cage " carries out for female case.
1. technical field:
This patent is related to the integrated application to ship and ocean engineering technology from technical standpoint, belongs to ship and ocean work
Journey equips class technical field.The patent is mainly used in aquaculture, therefore may belong to marine aquaculture tool-class technology neck
Domain.
2. background technique
With China's expanding economy, demand of the people to aquatic products is more and more, and the requirement to quality is also increasingly
It is high.Native species, which are salvaged, using fishing boat to rivers,lakes and seas has been far from satisfying the market demand.Now many inland rivers in China,
Inland sea, coastal, coastal waters the bay close to continent, all preferable waters of condition, all by the cultivation at numerous fishery cultivating families
Net cage is covered.For save the cost, the net cage that fishery cultivating family uses now is mostly small-sized net cage, and material is mostly to mould
Material, foam, timber etc..Do not have the resist ability to off-lying sea relatively strong winds wave.
Currently, large area carries out the industry of aquaculture using inland river, inland sea and bay and technology has the disadvantage in that
(1) exploitation of excessive aquiculture net cage occupies a large amount of limited water surface areas, with coastal industry, real estate
The exploitation of the industries such as industry, tourist industry produces the contradiction in contention waters, excites numerous social events.
(2) inland river, inland sea high-density aquiculture also result in the pollution of water field of big area, and cause all kinds of aquatic products
The degeneration of quality.
Therefore, fundamentally to solve the problems, such as that aquaculture occupies large area inland sea, inland waters it is necessary to realizing aquatic products
" off-lying sea " of cultivation.
Aquaculture " off-lying sea " can use the inexhaustible planktonic organism in off-lying sea as bait, be greatly lowered feeding
Grow cost；The aquatic products of high-quality deliciousness can be obtained；In addition, off-lying sea has stronger self-purification function, aquaculture can solve
The problem of polluted water region.Aquaculture " off-lying sea ", has become the developing direction of culture fishery.
Realize that aquaculture off-lying sea is essentially consisted in the difficulty of technical aspect:
(1) safety problem of aquaculture
China coast (especially southeastern coast) is the waters of typhoon more than one.Aquaculture " off-lying sea " must solve
Off-lying sea stormy waves is huge, causes the problem of poultry feeders operation is dangerous, net cage easily goes to pot.
(2) problem with high costs
Once it has been proposed that, the outer saline waters in the close continent of aquaculture will be suitable for, fenced up with breakwater, manually
Create a piece of " quiet " bay.This idea is unpractical.The reason for this is that: if it is construction " fixed " breakwater,
Not only cost is extremely high, but also can separate Cultivated water and the external world, causes seawater that cannot flow freely, and becomes " to enclose sea to support
How long fish " also has more than is needed even if off-lying sea is become inland sea, and will form and be similar to the limited waters quilt in fishing ground now
The case where net cage covers；If building floating type breakwater, not only net cage cost is still high, but also in especially big stormy waves (as greatly
Typhoon is attacked) under the conditions of, the validity of the practical wind wave prevention of floating breakwater will have a greatly reduced quality, and breakwater itself is still
In the presence of very big security risk.
Therefore realize that the fundamental solution of aquaculture " off-lying sea " is to create a kind of aquiculture net cage of energy wind and wave resistance.
3. summary of the invention
The purpose of this patent is to cultivate used net cage for existing inland sea to resist the stormy waves of off-lying sea, Yi Jiyu
Matched floating breakwater in especially big typhoon, actual effect is bad and the very big problem of security risk and proposes, with " ring
Shape radial type " net cage is the off-lying sea aquaculture technology of core technology.
The basic ideas of 3.1 the art of this patent schemes
3.1.1 the contradiction of ship performance and intensity is taken into account
Common sense teaches that the canoe in a park cannot go to sea to navigate by water, but big ship.The reason is that big
" stability " of ship is good.But total vertical moment of flexure of the big ship on wave is again very big, and structure easily goes to pot.If ship is made into " ring
Shape ", not only its construction cost can be greatly lowered, but also can obtain biggish moment of inertia of waterplane, so that it may obtain compared with
Big initial metacentric height；If longer ship is divided into several sections again, " hinged " gets up, and has not only been not easy to turn over and sink but also can make structural strength
Guaranteed, this can take into account the contradiction of performance and intensity.The basic principle of " cyclic annular radial type net cage " that this patent proposes is
Based on this.
3.1.2 about off-lying sea design maximum wind scale
The net cage that this patent proposes has very strong capacity of anti-storm, does not need to be suitable for using breakwater in addition to " pole
" unlimited sea area " other than area " (near south poles) is particularly suitable for coastal area of china " continental shelf " shallow water of 30~100m of the depth of water
Sea area.
The characteristics of coastal area of china waters first is that: the diastrous weathers such as typhoon occur it is more frequent.Such as in ALONG COASTAL FUJIAN
The Luoyuan in portion, one band of Liaanjiang county tropical storm or big can all occur according to the data of inshore observation station (1985-2012) every year
Typhoon.In normal weather, seashore annual mean wind speed is only in 3.1m/s or so, but when the diastrous weathers such as big typhoon occur, 10
Minute maximum wind velocity just up to 46.7m/s, is equivalent to 15 grades of Beaufort scale, caused by endanger it is extremely serious.This patent as a result,
Net cage " design wind scale " that is applicable in now be set to 16 grades of Pu Fu, i.e., the wind speed away from sea 10m height is 53.5m/s.It is equivalent to
" a-hundred-year ".This patent net cage must have enough stabilities and structural strength under the effect of design maximum wind-force.
3.1.3 about stability and structure:
From design with from the point of view of calculation method, this patent proposition " cyclic annular net cage ", what actually a kind of centre hollowed out
" ship " complies fully with the feature of " ship " defined in classification society rule.Thus, the maturation in relation to Ship Design and construction
Theory and method, specification and regulation etc. can apply, and have very strong practicability.Even if in this way, being still had in design
It is verified with stringent ship model experiment.
It by the common method of Marine engineering, is calculated through preliminary performance, can prove that " cyclic annular net cage " that this patent proposes is steady
Property is fine.Its reason is: this net cage, and moment of inertia of waterplane is big, center of gravity is low, and wind area is little, though wind-force is very big,
It will not still topple.The conclusion calculated through preliminary structure is: since this net cage uses " hinged ", i.e., by each component (" unit ")
It is connected with short cable and bitt (being commonly called as " checking bollard "), thus it always indulges moment of flexure, shear force will greatly reduce, it can be ensured that net cage
The safety of body construction.It is " bitt and short cable " and its structural reinforcement member that it is maximum, which to bear load, belongs to local strengthening scope.
And short cable connector is the mooring arrangement of ship routine, can be applied by the mode standard of ship specification.As long as taking certain peace
Overall coefficient, so that it may ensure to connect safety.
The theory and practice of Structual Mechamics for Ships is all proved: for being placed in the ship on wave, if wavelength X is remote
Less than captain L, i.e. λ/L < < 1, then having the appearance of several peaks and troughs, wave height H in the range of captain L1/3Compared with
Small, buoyancy is little relative to hydrostatic state change, will not generate biggish wave additional bending moment；Conversely, if wavelength X is much larger than
Captain L, i.e. λ/L > > 1, although wave height is very big, within the scope of captain L, corrugated is also not much different with standing level, it is also not possible to
There is biggish wave additional bending moment.It is directed to 16 grades of especially big violent typhoon, using the articulated manner of this patent, most by net cage
The characteristic length L of big module becomes smaller, i.e. and λ/L > > 1, therefore the additional wave torque generated is also less (referring to the example meter of this patent
It calculates).
A kind of 3.2 compositions of off-lying sea cultivation wind resistance wave type radial type net cage
3.2.1 " off-lying sea cultivation " base:
So-called " off-lying sea " of this patent meaning generally refers to the sea area far from continent." aquaculture is engaged in " off-lying sea "
Industry ", need oneself solve such as supply, bait, breeding, the life of administrative staff and operating condition, plant maintenance the problems such as.
Intensive way to manage should be generally used, net cage should be combined into a group, is formed in " base ".This " base " is general
Natural shoal of fish migration, natural bait outer saline waters more abundant should be located at.In " base ", certain amount can also be set
Wind power station, solar power plant, helistop, tourist attractions etc..
3.2.2 the basic composition of this patent net cage (referring to Fig. 1)
The cultivation wind resistance wave type radial type net cage of off-lying sea described in this patent is largely formed by 6.First, being by steel
3. ring-type watertight floating cabinet made of (or armored concrete) material construction, referred to as net cage unit, are equipped with air hose on it
⑥；Second, being the articulating members for connecting these net cage units, referred to as articulation pieceSeveral this kind of units
It connects, forms one large-scale annular float；Third, be the netting gear of aquatic, in the intermediate waters of cyclic annular buoyancy tank, if
It sets and cultivates the netting gears of all kinds of aquatic products 8.；Fourth, in the center of large-scale annular float, be one be equipped with power station, pump room, cargo tank,
The equipment such as pipeline and the central floating body of administrative staff's work, accommodation, referred to as central island are 1.；It five, is by air hose, ballast
Water pump, ballast tube the system, " ballast-dive-floating for being remotely controlled valve system and being located at various equipment compositions in engine control room
System "；Sixth, the mooring system being made of parts of appliance such as anchor, anchor chain, winch is 10., entire net cage can be tied to sea
Bottom.This whole system is known as net cage module.Several net cage modules connect together, and form fishing base.
3.2.3 " cyclic annular floating cabinet " (referred to as net cage unit 3.),
" cyclic annular floating cabinet " is the floating cabinet an of watertight structure.Inside is divided into several watertight cabins, by ballast
Hydraulic pipeline connects.According to the needs of ballast, it can be pumped into (or pumping out) ballast water, to keep the floading condition of net cage unit；?
Big red tide or high sea when attacking, can make entire net cage module dive to underwater certain depth.The deck on cabinet top,
It can be used as manway or launch the channel of bait trolley；Mooring system, air hose etc. are arranged on the certain position of cabinet to set
Standby or facility.
The shape of net cage module can be various shape.This example is taken as circle.Entire net cage module can divide in radial direction
It is segmented into several piece (this example is 2 pieces), several valves (this example is 8 valves) is also may be partitioned into circumferencial direction, forms several " unit " (this example
For 16 units).
3.2.4 about " articulation piece "
The scheme for the net cage unit connection that this patent proposes is to form a kind of flexible combination formula, removable with " hinged " mode
The connection system unloaded, i.e. permission net cage unit cannot be disengaged mutually in an a small range free movement.
Hinged described in this example, there are two types of forms: one is, " articulation piece " on deck is by wirerope and bitt institute structure
At；It at " articulation piece " of lower box, is made of 4. 5. locking wirerope winch, fluid pressure type bolt and wirerope.When connection steel
When cable tenses, two adjacent units can be linked together.Between each net cage unit, it is equipped with rubber anti-collision pad.
Short cable and bitt " hinged " connection type between this patent net cage unit are commonly used between ship and ship, ship and bank
Connection type, but short cable used in this patent can be used winch hydraulic drum and be fastened, and hydraulic cylinder control can be used in bitt
The bolt of system is locked.
The author once carried out theoretic discussion and calculated to verify to the tightness of " hinged " connection, it was demonstrated that different connections
Tightness has large effect to movement of the ship on wave and structural strength.It should arouse attention.
3.2.5 about " netting gear " (referring to Fig. 1)
8. the netting gear of off-lying sea aquaculture product is bound among the lower part waters of floating body net cage 9., in especially big red tide or spy
High sea comes temporarily, and the top of net cage can also be covered with netting gear, when netting gear is sunk to underwater certain depth, can still be maintained
The existence of institute's cultured fishes.
As needed, netting gear can set 1 layer or 2 layers of net in side and bottom surface.Outer layer net can be with forming wire-rope into interlocking-wire at main to use
In preventing the predacious fish such as shark from damaging to the fish cultivated in netting gear, inner layer net is weaved by nylon yarn, for protecting
(isolation) cultured fishes.9. netting gear divides into weight pendant.
3.2.6 about " central island " (referring to Fig. 1)
So-called " central island " 1., refers to a biggish floating body in entire large-scale net cage center setting, and the central island is real
Border is a ship, 4. the main deck of hull is equipped with superstructure, the habitation of personnel is arranged inside, office, meeting room, grinds
Study carefully room and signalling arrangement, air hose etc..
2. ship main deck divides into cabin.Set in cabin diesel generating set, burr pump, general service pump, main distribution board,
Control room, fuel oil tank, full ship piping, ballast, dive and buoyancy system, various ancillary equipments etc..
3.2.7 about " ballast-dive-floating system "
This is a set of similar to submarine " ballast-dive-floating system ", is by having the air hose of opening and closing valve, pressure
Carry pump and can sensible each watertight compartment of the whole network case ballast tube system, remote control valve system composition.Come in especially big red tide or especially big stormy waves
Temporarily, sea cock and valve is opened, seawater is sucked, netting gear can be sunk to underwater certain depth.Under normal sea conditions, pressure is opened
Pump is carried, ballast water is discharged, net cage can float up to normal floading condition.Since the depth for needing to sink is little, " air hose " is still fallen within
State, net cage still have certain stability.
3.2.8 about mooring system
It should determine which kind of anchoring approach used according to the depth of water situation in sea area where net cage.It is left for 30-150m of the depth of water
Right shallow sea, can design its mooring system by the anchorage scheme of ship routine；The system be by windlass, anchor chain (or anchor cable) and
Anchor is formed；The gravity anchor that anchor used generally uses armored concrete to constitute.
To the depth of water up to deep-sea sea areas more than hundreds of meters or even km, dynamic positioning system can be used.
4. Detailed description of the invention:
Fig. 1 is: a kind of off-lying sea cultivation wind resistance wave type radial type net cage schematic diagram
Attached drawing 1 briefly explains:
This figure reflects the technical characteristics of this patent: the net cage unit being placed on wave sea, with wirerope be
Column (or hydraulic bolt) " hinged " form connects, and constitutes the net cage module an of monolithic stability, to ensure that whole knot
Structure safety, and stability is good.Administrative staff's mainly inhabitation and activity in central island, rocking tendency is smaller, work and life
Condition is preferable.
As example, main scale is as follows:
The legend of Fig. 1 is:
1. central island
2. cabin
3. net cage unit
4. main deck
5. connecting short cable and bitt on deck
6. air hose
7. dynamic positioning device (Z is pushed away) (DP-1)
8. netting gear
9. netting gear weight is fallen
10. windlass and chain locker
Rubber cushion blocks
Harbour
Articulation piece
5. specific embodiment
Below according to Principles of Ship Designing, the design example for the radial type net cage module that a diameter is 200m is provided, is said
Bright specific embodiment:
5.1 design considerations:
5.1.1 net cage uses sea area:
This net cage is suitable for the Taiwan Straits Fujian Liaanjiang county-Xiamen " off-lying sea ", and position is about eastern 118 ° -120 ° of diameter,
The vast sea area of 23 ° -26.5 ° of north latitude (calculated examples are taken as 25 ° of N, earth rotation Corrioli's effect coefficient: f=0.22), this sea area
For the more typhoon waters in both sides of the Taiwan Straits.
5.1.2 wind scale is designed: 16 grades of Beaufort scale of especially big typhoon (10m wind speed, Urmax=53.5m/s on sea).
Certain weather station is as follows to the determination data of primary especially big typhoon:
Local Zenith Distance presses hundred pa of Pa=1013.6 (hPa)
Center of typhoon wind pressure: hundred pa of Po=914
Draught head: hundred pa of Δ P=Pa-Po=99.6
Maximum wind speed radius (distance away from center of typhoon): R=27 nautical miles=50 kilometers
Typhoon Tracks speed: Uf=20 section=37.0km/h=13.37m/s
5.2 typhoon region elements of wave calculate:
" element of wave " referred herein refers to wave height H1/3, wavelength X, cycle T 1/3.
Using more general Bretschneider (1957) following empirical formula
The maximum value of element of wave is as follows when 5.2.1 calculating 16 grades of typhoons:
Greatest gradient wind speed (Ug) max at 10m on sea are as follows:
(Ug) max=0.868 × [73 × 0.1718 × (Δ P)1/2-0.575R×0.22]
=105.23 (section)=54.14m/s
Maximum sustained wind speed Ur (section) at 10m on sea, is obtained by following formula:
For mobile typhoon:
Urrmax=0.865 × (Ug) max+0.5Uf=104.02 section=53.52m/s
This value is equivalent to 16 grades of Beaufort scale, acquires Urrmax and then utilizes following two formula can be in the hope of the typhoon shape
At deep water maximum significant wave height H1/3maxAnd cycle T1/3max。
H1/3max=5.03exp (0.000295 × R × Δ P) × (1+0.208 × Uf/ (Ur) ^ (1/2))=17.02m
T1/3max=8.6exp (0.000148 × R × Δ P) × (1+0.104*Uf/ (Ur) ^ (1/2))=16.2s
According to the relation table in the period of deep water wave and calculating wavelength, the wavelength corresponding to this wave period can be checked in
It is as follows:
λ max=545.5m
After typhoon formation, it is known as " typhoon eye " within the scope of center of typhoon 10km, it is almost calm.Apart from center of typhoon
Within the scope of about 40-50km, wind speed increase directly proportional to r, this range is known as " typhoon internal area ".Away from center of typhoon 40-50km's
Often there is the maximum value Urmax of wind speed in outer rim, referred to as " maximum wind speed radius R " (this example 50km)；Herein except distance,
Until radius 500km, referred to as " foreign lands area ", wind speed is generally reduced in the ratio of 1/r^ (1/2)；Distance r increases again, arrives
800km can be considered " outside typhoon circle " that wind speed reduces ratio in 2/r.
Wave caused by marine typhoon also have an Emergence and Development, stabilization, to gradually weaken, disappear process.Herein
In the process, various wavelength, wave height and the composition in period wave are possible to occur.For ship (including net cage), structure is produced
It is not wavelength longest or shorter wave that raw destructive power is maximum, but the ratio between wavelength and captain are close to 1.0 composition
Wave.Thus, when calculating net cage stability, should consider by maximum wind velocity；And when calculating structure stress, it should be by wavelength X and net cage
The ratio between the characteristic length L of unit ≈ 1.0 considers.
5.2.2 3 net cage characteristic lengths are chosen, its element of wave is calculated
One is rounded a net cage (diameter) " captain ", L1=200m；Second, net cage central island+interior ring element is taken, it is straight
Diameter L2=120m；Second, taking net cage outer ring element length L3=75m, the wave that examination calculates its wave load maximum case is wanted
Element:
Through the author's regression analysis, routinely wind velocity U r and the high H of wave are obtained1/3Relationship such as following formula:
H1/3=0.08 × Ur1.55
The wind speed of other researchers proposition and the regression formula of wind scale are applied again:
Ur=0.836 × B1.5
It can obtain: H1/3=0.08 × (0.836 × B1.5)1.55=0.0606 × B2.325
At " typhoon internal area ", it is assumed that wave height H1/3, cycle T1/3Generally also reduce in the ratio of 1/r^ (1/2), thus
It can deduce wave height H when its wavelength1/3, cycle T1/3It is as follows:
(referring to subordinate list 2)
Specified sea areas typhoon zone storm wave element computational chart
5.2.3 overall structure is compared with articulated structure stress condition:
By the empirical equation that typhoon scholars provide, by above rough calculation it can be seen that a typhoon formation simultaneously
After stabilization, maximum to the structural strength harm of ocean engineering structure is not in the maximum region of wind speed, because at this time
Maximum wavelength λ max be often much larger than the characteristic length L of works.But one spacing of works is moved away in center of typhoon
When from (at the r=102km of such as this example), the case where being exactly in λ 1=L1 (L1=net cage diameter D in this example), at this time
Wave height H1/3It is higher, reach 11.91m, this example net cage frame moldeed depth is only 6.5m, is if overall structure center is placed in wave height
H1/3When on=11.91m, the trochoidal waves that wavelength is 200m, additional wave bending moment is bigger (thus example explanation, if pressed
Ship conventional Calculation Method, taking wave height is 1/20 captain, that is, it is relatively dangerous that taking and calculating wave height, which is 10m)；But if
Structure is hinged together, the wavelength of most precarious position can reduce with wave height, such as take λ 3=75m, at this point, wave height H1/3
=7.46m, then the structural strength of ship will be much more secure.By the additional total vertical moment of flexure of the wave of ship and captain square at
Direct ratio, wave add the shear force rule directly proportional to captain, if with net cage generally 100%, " central island+inner ring " composition
Main body and outer ring element be hinged and central island and inner ring it is hinged after it is hinged with outer ring element again, the wave of three kinds of situations is attached
Adding up vertical bending moment ratio is: 100%, 36%, 14.64%；Its wave adds shear force ratio: 100%, 60%, 38.27%.Explanation
Difference is very big.(referring to subordinate list 3)
It is computed, the actual calculation of this patent is as shown in appendix 1.
Attachment:
A kind of subordinate list 1: off-lying sea cultivation wind resistance wave type radial type net cage example major parameter conclusive table
Claims (2)
1. a kind of off-lying sea aquaculture net cage for reducing security risk, which is characterized in that the off-lying sea culturing net for reducing security risk
Case includes consisting of, first, being cyclic annular watertight floating cabinet, referred to as net cage unit；Second, being to connect these net cage units
The articulating members to get up, referred to as articulation piece, several this kind of units connect, and form one large-scale annular float；
The articulation piece, is made of wirerope and bitt above deck, is by fluid pressure type bolt and wirerope in the lower part of cabinet
It is constituted, fluid pressure type bolt is for locking bitt；When connecting wirerope tension, two adjacent units are linked together.
2. the off-lying sea aquaculture net cage according to claim 1 for reducing security risk, which is characterized in that the cyclic annular floating
Cabinet, i.e. net cage unit, inside are divided into several watertight cabins, are connected by ballast tube system；It is pumped into according to the needs of ballast
Or ballast water is pumped out, to keep the floading condition of net cage unit；Entire net cage module dive can also be made to underwater certain depth；Case
The deck on body top, the channel as manway or dispensing bait trolley；Mooring system, air are set on certain position
Pipe.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881815 | 2015-12-04 | ||
| CN201510881815X | 2015-12-04 | ||
| CN201610326463.6A CN105766749B (en) | 2015-12-04 | 2016-05-17 | A kind of off-lying sea cultivation wind resistance wave type radial type net cage |
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| CN201610326463.6A Division CN105766749B (en) | 2015-12-04 | 2016-05-17 | A kind of off-lying sea cultivation wind resistance wave type radial type net cage |
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| CN201910565555.3A Withdrawn CN110178774A (en) | 2015-12-04 | 2016-05-17 | Wind resistance wave type aquiculture net cage |
| CN201910565578.4A Withdrawn CN110178775A (en) | 2015-12-04 | 2016-05-17 | Reduce the off-lying sea aquaculture net cage of security risk |
| CN201910565582.0A Withdrawn CN110622900A (en) | 2015-12-04 | 2016-05-17 | Articulated net cage for open sea cultivation |
| CN201610326463.6A Active CN105766749B (en) | 2015-12-04 | 2016-05-17 | A kind of off-lying sea cultivation wind resistance wave type radial type net cage |
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| CN106508766A (en) * | 2016-11-22 | 2017-03-22 | 湖北海洋工程装备研究院有限公司 | Deep sea aquaculture net cage |
| CN107410126A (en) * | 2017-05-31 | 2017-12-01 | 大连理工大学 | Fixed blower fan and seawater fishery net cage integrated system |
| CN109864022A (en) * | 2017-10-18 | 2019-06-11 | 哈尔滨工程大学 | A kind of netted modularization sea fishing ground platform |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110622900A (en) | 2019-12-31 |
| CN105766749A (en) | 2016-07-20 |
| CN105766749B (en) | 2019-07-12 |
| CN110178774A (en) | 2019-08-30 |
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Application publication date: 20190830 |