CN107494365B - Cultured fish transfer channel for communicating circular floating type net cages - Google Patents
Cultured fish transfer channel for communicating circular floating type net cages Download PDFInfo
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- CN107494365B CN107494365B CN201710832762.1A CN201710832762A CN107494365B CN 107494365 B CN107494365 B CN 107494365B CN 201710832762 A CN201710832762 A CN 201710832762A CN 107494365 B CN107494365 B CN 107494365B
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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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- 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 cultured fish transition channel for mutually communicating circular floating net cages, which comprises a transition channel framework, wherein the transition channel framework adopts a three-section middle symmetrical structure formed by welding steel pipes, the channel section is in a hollow cylinder profile shape, the inlet and outlet sections at two ends are in a horn mouth shape which is gradually inclined and expanded towards the lower part, and fixing pipes are symmetrically arranged at the top of the transition channel framework, close to two ports; a netting is coated on the periphery of the transition channel framework, two sides of the transition channel framework are also provided with floating cylinders, and a plurality of fixing frames which are distributed at intervals and matched with the lower profile of the transition channel framework are arranged between the outer walls of the floating cylinders; when the device is used, two ends of the device are respectively butted on the large butt joint holes of the two circular net cages, and the separation and independence of the circular net cages can be restored after the operation is finished. The invention realizes the intercommunication among the circular net boxes, is convenient for various operations including net clothing replacement and box separation operation, and has high working efficiency.
Description
The technical field is as follows:
the invention relates to a mariculture net cage, in particular to a cultured fish transfer channel for communicating circular floating net cages.
Background art:
the round frame and the netting enclose a cylinder, and the net cage floating on the water surface is called a round floating net cage. In China, the most widely applied circular floating net cages with HDPE frames are the circular floating net cages with the perimeter of 40-100 m, and large-scale deep-water net cages with the perimeter of more than 100m are developed gradually. With respect to the technical development of the circular floating cage system, the following problems are worth noting:
the independence of each net cage in the net cage group:
typically, four or more circular net cages may be joined together to form a net cage group, which may use a unified mooring system. Because the volume of a single net cage is large (up to 450 m)3Above), can form the independent aquaculture water body that satisfies the breed needs, so generally not intercommunicate between each box with a net of traditional box with a net group, and even contact also is the point contact between the circular box with a net, is difficult to intercommunicate, so each box with a net is independent each other, each other does not influence.
II, replacing the netting in the culture process:
larvae and spores of a large number of marine organisms and microorganisms can move along with the flow and are attached to the sea wave-resistant net cage, so that the water body exchange inside and outside the net cage is reduced, the culture environment is deteriorated, the diseases of fishes cultured in the net cage are frequent, the resistance and the drift of the net cage are increased, the abrasion among the net cages of the net cage is increased, and the service life of the net cage is shortened.
In order to remove attachments on the net and adapt to the growth requirement of the fish body, the net needs to be replaced at proper time, the meshes are enlarged, and the water body exchange inside and outside the box body is improved. Generally, the box body is cleaned and replaced once every 1-3 months. The old netting is replaced on the sea, particularly under the working condition of windy and heavy wave, and the new netting needs to be installed, so that the manual operation is relied on, the labor intensity is high, the personal safety of cultivation workers is poor, and the escape of the cultivated fish needs to be prevented.
Thirdly, performing box separation treatment in the culture process:
after the fishes are raised for a period of time, along with the growth, density increase and size difference of individuals, the cultured fishes in the boxes need to be separated into boxes at regular intervals, and the fishes are raised separately according to the sizes and the physique of the fishes, so that the bipolar differentiation phenomenon is avoided. The operation of separating boxes needs special care, the placing time is not too long and the density is not too high in the process of separating excessive fish stocks and fish separating, and the fish stocks are protected from oxygen deficiency and fish body injury so as to avoid death caused by pathogenic bacteria infection. Generally, from fish breeding to adult fish, the net cages are divided into 2-3 times, and the net cage can be divided into boxes by combining with net replacement. And the frequency of the box separation is higher for some fishes with higher growth speed. How to efficiently and quickly carry out box separation operation and reduce labor consumption is one of the technical problems to be solved in the current cage culture.
In summary, it is worth in-depth discussion about the circular net box set: whether the configuration of the circular net cage is locally modified or not is facilitated, so that the operation of box separation treatment, net coat replacement and the like in the culture process is facilitated, the influence on fishes is reduced, and the working efficiency is improved.
The technical problem to be solved by the invention is as follows: the round frame net cages are used as supports, and the cultured fish transfer passage matched with the round frame net cages is designed, so that the round net cages can be communicated with one another as required, various culturing operations including box separation treatment, net coat replacement and the like are facilitated, labor time is reduced, and working efficiency is improved.
The invention content is as follows:
in order to overcome the defects of the prior art, the invention aims to provide a cultured fish transfer channel for communicating circular floating net cages, wherein the circular net cages are locally reformed, the transfer channel is additionally arranged between two circular net cage frames, the two circular net cages can be communicated with each other, various culturing operations are facilitated, and the transfer channel is detached after the operation is finished, so that the circular net cages can keep mutual independence.
The technical scheme of the invention is as follows:
the fish-farming transfer channel is characterized by comprising a transfer channel framework, wherein the transfer channel framework is of a three-section middle symmetrical structure formed by welding steel pipes, the channel section is in a hollow cylinder profile shape, the inlet and outlet sections at two ends are in a horn mouth shape which is gradually inclined and enlarged towards the lower part, and fixing pipes are symmetrically arranged at the top of the transfer channel framework close to two ports;
the periphery of the transition channel framework is coated with netting, the two sides of the transition channel framework are also provided with floating cylinders, a plurality of fixing frames which are distributed at intervals and matched with the profile of the lower part of the transition channel framework are arranged between the outer walls of the floating cylinders, and when the device is used, the two ends of the device are respectively butted on the large butt joint holes of the two circular net boxes.
The fish culturing transition channel enabling the circular floating net cages to be mutually communicated is characterized in that a plurality of turnbuckles are uniformly welded on an end face pipe of a transition channel framework, and the turnbuckles are spiral curve-shaped metal thin rods not less than two circles.
The fish transfer passage capable of enabling the circular floating net cages to be mutually communicated is characterized in that the fixed pipes are arc-shaped, arc openings face two ends of a transfer passage framework, the arc radius of the fixed pipes is the same as the radius of the inner floating pipes on the net cage framework, each fixed pipe is welded and fixed through a plurality of inclined steel pipes, the lower ends of the inclined steel pipes are welded on the transfer passage framework, the upper ends of the inclined steel pipes converge at one point and are welded and fixed with the lower ends of the outer walls of the fixed pipes, and the two fixed pipes are symmetrically distributed at two ends above the transfer passage framework.
The fish culturing transfer passage enabling the circular floating net cages to be mutually communicated is characterized in that the arc-shaped fixing frame is composed of three sections of semicircular arc plates, the three sections of semicircular arc plates are symmetrically distributed, the opening of the semicircular arc plate at the middle section faces upwards, the arc size of the semicircular arc plate at the middle section is the same as the outline size of a cylinder body at the middle part of a transfer passage framework, the openings of the semicircular arc plates at two sides face downwards, and the arc size of the semicircular arc plate at the two sides is the same as the outline size.
The fish culturing transfer passage enabling the circular floating net cages to be mutually communicated is characterized in that the circular net cage which is supposed to use the transfer passage is provided with a butt joint hole which is as large as the end surface pipe shape on the transfer passage framework and a hole sealing net for sealing the hole, and the hole is sealed by the hole sealing net to form an independent net cage space at ordinary times.
Compared with the prior art, the invention has the following advantages:
1. the fish-farming transition passage can float on the sea surface, the fixed pipe on the passage is matched with the inner floating pipe of the circular net cage frame in an arc shape, the fixed pipe and the inner floating pipe can be tightly connected through a plurality of ropes, the connection method is simple, and the operation is convenient;
2. according to the invention, the two adjacent circular floating net cages are communicated with each other by additionally arranging the transition channel, so that cultured fishes can be conveniently transitioned between the net cages as required, convenience is provided for changing netting and separating boxes in the culture process, the influence of various culture operations on the cultured fishes is reduced, the safety and the high efficiency of the culture operation are realized, and a new auxiliary means is provided for various operations of the traditional net cages;
3. after the operation of the invention is finished, the transition channel is removed according to the procedure opposite to the installation, and the hole on the netting is sealed by the hole sealing netting, thereby restoring the original mutual separation and independence of the circular net boxes. Even can realize the series connection intercommunication between a plurality of circular box with a net, the application is nimble changeable.
Drawings
FIG. 1 is a front view of a transition channel of the present invention.
Fig. 2 is a top view of a transition channel of the present invention.
Fig. 3 is a side view of a transition passage of the present invention.
Fig. 4 is a schematic three-dimensional structure diagram of a transition channel according to the present invention.
Fig. 5 is a schematic structural view of the transfer passage of the present invention after being wrapped with a netting.
Fig. 6 is a schematic structural view of the float bowl and the arc-shaped fixing frame of the present invention.
Fig. 7 is a schematic view of the connection between the transition passage and the float bowl according to the present invention.
Fig. 8 is a top view of the transition passage and cage frame connection of the present invention.
Fig. 9 is a bottom view of the transition passage of the present invention connected to the cage frame.
Fig. 10 is a schematic view of the connection of the transition passage of the present invention to two cage frames.
Fig. 11 is a schematic diagram of a net cage structure matched with a transition passage.
Fig. 12 is a schematic view of the connection of the transfer passage of the present invention to a single net cage.
Fig. 13 is a schematic view of the transfer passage of the present invention communicating two net cages.
Description of reference numerals: 1. a transition channel framework; 2. a fixed tube; 3. a turnbuckle; 4. an end face tube; 5. an arc-shaped fixing frame; 6. a floating barrel; 7. an inner floating pipe; 8. an outer floating pipe; 9. a handrail; 10. a support; 11. netting; 12. and (5) sinking the seeds.
The specific implementation mode is as follows:
see the attached drawings (remarks: for convenience of expression, the bottom net of each netting is not shown):
a cultured fish transfer channel enabling circular floating net cages to be mutually communicated comprises a transfer channel framework 1, a net wrapping the periphery of the transfer channel framework 1 and floating barrels 6 fixed on two sides of the transfer channel framework 1 based on a plurality of arc-shaped fixing frames 5; the transition channel framework 1 is a symmetrical structure which is formed by welding steel pipes, has a hollow cylindrical profile at the middle part and has two bell-mouth-shaped ends which are gradually inclined and enlarged towards the lower part, and the fixed pipes 2 are welded at the two ends of the upper part of the transition channel framework 1 in a symmetrical manner by obliquely intersecting a plurality of steel pipes; when the transition passage is used, holes as large as the end face of the transition passage framework 1 need to be formed in the netting 11 of the circular net cage in advance, and a hole sealing netting for sealing the holes needs to be prepared; when the device is assembled with a circular net cage, a hole-sealing netting of the net cage is firstly opened, the periphery of a hole on the netting 11 is reversely buckled on a turnbuckle 3 of a transition channel framework 1, and then a fixed pipe 2 at the upper part of the transition channel framework 1 is bound below a floating pipe 7 in the net cage framework, so that two circular net cages are communicated and connected through the transition channel framework 1; after the operation is finished, the transition passage can be removed in the reverse order of assembly, and the holes on the netting 11 are sealed by the hole-sealing netting, thereby restoring the mutual separation and independence of the circular net cages.
The following further describes and explains a transfer passage for farmed fish which connects the circular floating cages with each other.
The structural construction of a transition channel framework is as follows:
the transition channel framework 1 is a hollow symmetrical grid structure formed by welding steel pipes of the same specification, the middle part of the transition channel framework is in a hollow cylindrical profile shape, the two ends of the transition channel framework are in a horn mouth shape which is gradually inclined and enlarged towards the lower part, and the two ends of the upper part of the transition channel framework 1 are symmetrically welded with fixed pipes 2 through obliquely crossing a plurality of steel pipes, as shown in figures 1-4.
The transition channel framework 1 is integrally in a hollow symmetrical grid structure, the main body of the transition channel framework is in an inverted saddle-shaped surface shape, the sections of two ends of the transition channel framework are large, the section of the middle of the transition channel framework is small, the uppermost part of the transition channel framework is in a semicircular cylindrical surface, and the two ends of the transition channel framework are sealed by end surface pipes 4. The end face pipe 4 is in a symmetrical state, the upper part is a semicircular pipe, the middle part is a vertical pipe, and the lower part is a symmetrical smooth curved pipe, as shown in fig. 4.
The two ends of the configuration of the transition channel framework 1 are large and the middle is small, so that the end surface pipe 4 extending into the net cages at the two ends for a certain distance has a large section, the cultured fish can enter the section, the end surface pipe gradually enters a cylindrical surface with a small section in the middle according to the guidance of the transition channel framework 1, and then the end surface pipe transits to a horn mouth-shaped section with the gradually enlarged other side, and finally the transition of the cultured fish is finished. This design scheme that the centre is slightly littleer can save material on the one hand, and on the other hand can effectively induce the breed fish to change the place again, and the less easy to assemble flotation vat 6 in middle part has practicality and convenience.
A plurality of turnbuckles 3 are uniformly welded on end face pipes 4 at two ends of the transition channel framework 1, and the turnbuckles 3 are spiral curve-shaped metal thin rods with at least two circles. The turnbuckles 3 are directed towards the middle of the transition duct skeleton 1, i.e. inside the respective end tubes 4, as shown in fig. 4. On one hand, the net cover is hidden in the inner side of the end face pipe 4, contact objects and workers cannot be stabbed, and on the other hand, the net cover is favorable for reversely buckling the periphery of the hole of the net cover. The turnbuckle 3 is in a spiral curve shape, and after the net buckles the turnbuckle 3, the net is difficult to separate and lose efficacy under the action of common wind and wave loads, so that the closure of the culture space is effectively maintained, and cultured fishes are prevented from escaping.
The fixed pipes 2 symmetrically distributed at the two ends of the transition channel framework 1 are arc-shaped, the arc radius of the fixed pipes is the same as that of the inner floating pipe 7 on the net cage framework, and the fixed pipes 2 are welded at the two ends of the upper part of the transition channel framework 1 in an inclined, intersected and symmetrical mode through a plurality of steel pipes.
Because the fixed pipe 2 is matched with the inner floating pipe 7 of the circular net cage frame in an arc shape, the transition channel framework 1 is submerged below the net cage frame during connection, so that the position of the fixed pipe 2 is positioned right below the inner floating pipe 7 of the net cage frame, and the fixed pipe 2 is tightly connected with the inner floating pipe 7 through a plurality of ropes, the connection method is simple, and the operation is convenient, as shown in figures 8-10.
The periphery of the transition channel framework 1 is wrapped with matched netting, so that the cultured fish cannot escape from the periphery of the transition channel framework 1, and the cultured fish can only transition and swim from two ends of the transition channel framework 1, as shown in fig. 5.
The arc-shaped fixing frame 5 is composed of three sections of semicircular arc plates, the three sections of semicircular protective plates are symmetrically distributed, the opening of the semicircular arc plate in the middle section is upward, the arc size of the semicircular arc plate is the same as the outline size of the cylinder in the middle of the transition channel framework 1, the openings of the semicircular arc plates on the two sides are downward, and the arc size of the semicircular arc plate is the same as the outline size of the cylindrical buoy 6; based on a plurality of arc-shaped fixing frames 5, a cylindrical floating barrel 6 is respectively fixed on two sides of the transition channel framework 1, so that the transition channel framework 1 can float on the sea surface by itself, as shown in fig. 6 and 7.
The cultured fish transfer passage can float on the sea surface, can be pulled to a construction site through floating of a ship, and can also be placed on the ship to be uploaded to the construction site.
The concrete dimensions and parameters of the transition passage framework 1 are comprehensively determined according to the space of the net cage, the convenience of construction, the cultured fish species, the efficiency of transition operation and the like.
Second, about the transformation of planning to use transition passageway box with a net:
a round net cage of a transition passage is to be used, a hole which is as large as the shape of an end face pipe 4 on a transition passage framework 1 is formed in a net cover 11, a hole sealing net cover for sealing the hole is prepared, and the hole is sealed by the hole sealing net cover to form an independent net cage space at ordinary times, as shown in figure 11.
The holes formed in the circular net cage netting 11 are as large as the end surface pipes 4 in shape, the peripheries of the holes are reversely buckled on the turnbuckles 3 on the end surface pipes 4, and an effective closed space is formed between the transition channel and the netting 11 to prevent cultured fishes from escaping from the prison.
The size of the hole-sealing netting used for sealing the holes on the netting is larger than that of the holes, and the periphery of the hole-sealing netting can be bound to the periphery of the holes by ropes to form a closed and complete netting space. When in normal culture, the holes are sealed by a hole sealing netting, and each circular net cage forms a closed and independent culture water body which is not different from the common net cage; when the transition channel is connected, the hole-sealing netting is unfastened, and the periphery of the hole is connected with the screw buttons 3 of the end surface pipes 4; after the transition channel is used, the periphery of the hole is separated from the turnbuckle 3, the hole is sealed by a hole sealing netting, and the original independence and sealing performance of each net cage are restored.
If a plurality of net cages are required to be communicated, two holes can be symmetrically formed in the net cages, so that the plurality of net cages can be connected in series and communicated.
Thirdly, connection and separation of the transition passage and the net cage:
when the transition channel is assembled with the circular net cage: the transfer passage is transported to the side of the net cage in a floating mode and submerged below the net cage frame, a hole sealing net of the circular net cage is opened, the periphery of a hole in the net 11 is reversely buckled on a spiral buckle 3 of the transfer passage framework 1, then a fixing pipe 2 at the upper part of the transfer passage framework 1 is bound below a floating pipe 7 in the net cage frame, therefore, the transfer passage framework 1 is connected with the circular net cage, the other end of the transfer passage framework 1 is connected with the other circular net cage according to the same method, and therefore the two circular net cages are connected in an intercommunicating mode through the transfer passage framework 1.
When removing the transition passage from the circular net cage: the periphery of a hole in a netting 11 is unfastened from a turnbuckle 3 of a transition channel framework 1, the periphery of the hole-sealing netting is bound around the hole, the netting 11 of the net cage is formed into a closed independent space, a fixed pipe 2 at the upper part of the transition channel framework 1 is unfastened and separated from a floating pipe 7 in the net cage framework, so that one end of the transition channel framework 1 is separated from one circular net cage, the other end of the transition channel framework 1 is separated from the other circular net cage according to the same method, so that the transition channel framework 1 is removed and separated from the two circular net cages, and the circular net cages are recovered to be mutually separated and independent.
And fourthly, application of intercommunication among the circular net cages:
several situations that embody the convenience and advantages of circular cage intercommunication are listed below:
1. replacing the netting of the net cage:
if too many marine fouling organisms on the netting, the netting of the net box needs to be replaced usually, and the box body is cleaned and replaced every 1-3 months generally.
For example, to replace the netting of the net cage a in fig. 13, one operation scheme for replacing the netting using the transition passage is as follows: the method comprises the steps of firstly installing a transition channel between two circular net cages to realize intercommunication of the two net cages, driving cultured fishes in the net cage A into the net cage B through the transition channel through an auxiliary fishing net, closing a hole-sealing net cover of the net cage B after the cultured fishes in the net cage A are basically not contained after multiple operations, enabling the cultured fishes to be sealed and stored in the net cage B, then carrying out net cover replacement operation on the net cage A, reversely buckling the periphery of a hole in the net cage A on a spiral buckle 3 of a transition channel framework 1 after the net cover replacement is finished, then opening the hole-sealing net cover of the net cage B, driving the cultured fishes in the net cage B into the net cage A through the auxiliary fishing net, closing the hole-sealing net covers of the net cage A and the net cage B after the cultured fishes in the net cage A and the net cage B are basically averaged, and removing the transition channel, thereby realizing the replacement operation of the net cover of the net cage A. The fish-driving operation is slow in action and small in movement and static, so that extra loss caused by large-area panic of cultured fish is avoided.
In fact, other transition schemes for the cyclic communication between multiple network boxes can be derived, and are not exhaustive here.
2. Performing box separation operation on the cultured fish in the net cage:
after the fishes are raised for a period of time, along with the growth, density increase and size difference of individuals, the cultured fishes in the boxes need to be separated into boxes at regular intervals, and the fishes are raised separately according to the sizes and the physique of the fishes, so that the bipolar differentiation phenomenon is avoided.
For example, to perform box separation operation on cultured fish in the net cages a and B in fig. 13, one operation scheme is as follows: the method comprises the steps of firstly installing a transition channel between two circular net cages to realize the intercommunication of the two net cages, using an auxiliary fishing net with meshes smaller than the minimum cultured fish to catch the cultured fish in the net cage A into the net cage B, after repeated operation, making the net cage A basically have no cultured fish, then using the auxiliary fishing net with meshes larger than a certain set size to catch the cultured fish in the net cage B into the net cage A, finally basically making the fish with relatively small body size remain in the net cage B and the fish with relatively large body size remain in the net cage A, closing a hole-sealing netting of the net cage A and the net cage B, and removing the transition channel, thereby realizing box separation operation. Measures should be taken to prevent small fish from mixing in the big fish and migrating from the net cage B to the net cage A as much as possible in the box separation process. The box separation operation does not need to fish out or separate the fish from the water surface, and the influence on the fish is reduced to the maximum extent.
3. Cleaning the net cage:
since marine fouling organisms are easily attached to the netting, the netting should be periodically cleaned. The method for cleaning the netting can be various, such as manually brushing the netting by using a long-handle brush, and high-pressure hydraulic scouring the netting. In the process of cleaning the netting, if the fish cultured in the net is influenced too much, the fish cultured in the net box to be cleaned can be transferred to the adjacent net box through the transfer channel according to the method, and the fish is driven back to the net box after the netting is cleaned.
The intercommunity of the circular net cage can be further utilized to realize other functions and operations except for the above-mentioned netting replacement, box separation operation and net cage cleaning, and the functions and operations are not exhaustive.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
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.
Claims (1)
1. A cultured fish transition channel enabling circular floating net cages to be mutually communicated is characterized by comprising a transition channel framework, wherein the transition channel framework is of a three-section middle symmetrical structure formed by welding steel pipes, the channel section is in a hollow cylinder profile shape, inlet and outlet sections at two ends are in a horn mouth shape gradually inclining and expanding towards the lower part, and fixing pipes are symmetrically arranged at the top of the transition channel framework close to two ports;
a netting is coated on the periphery of the transition channel framework, two sides of the transition channel framework are also provided with floating cylinders, and a plurality of fixing frames which are distributed at intervals and matched with the lower profile of the transition channel framework are arranged between the outer walls of the floating cylinders; when in use, two ends are respectively butted on the large butt holes on the two circular net cages;
a plurality of turnbuckles are uniformly welded on the end surface pipe of the transition channel skeleton, and the turnbuckles are spiral curve-shaped metal thin rods with at least two circles;
the fixed pipes are arc-shaped, arc openings face two ends of a transition channel framework, the arc radius of the fixed pipes is the same as that of the inner floating pipes on the net cage framework, each fixed pipe is welded and fixed through a plurality of inclined steel pipes, the lower ends of the inclined steel pipes are welded on the transition channel framework, the upper ends of the inclined steel pipes converge at one point and are welded and fixed with the lower ends of the outer walls of the fixed pipes, and the two fixed pipes are symmetrically distributed at two ends above the transition channel framework;
the arc-shaped fixing frame is composed of three sections of semicircular arc plates, the three sections of semicircular protective plates are symmetrically distributed, the opening of the semicircular arc plate in the middle section faces upwards, the arc size of the semicircular arc plate in the middle section is the same as the outline size of the cylinder in the middle of the transition channel framework, the openings of the semicircular arc plates on the two sides face downwards, and the arc size of the semicircular arc plate in the two sides is the same as the outline size of;
the round net cage for the transition passage is provided with butt joint holes with the same size as the end face pipe shape on the transition passage framework on the net coat, a hole sealing net coat for sealing the holes is prepared, and the holes are sealed by the hole sealing net coat to form an independent net cage space at ordinary times.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710832762.1A CN107494365B (en) | 2017-09-15 | 2017-09-15 | Cultured fish transfer channel for communicating circular floating type net cages |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710832762.1A CN107494365B (en) | 2017-09-15 | 2017-09-15 | Cultured fish transfer channel for communicating circular floating type net cages |
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| CN107494365A CN107494365A (en) | 2017-12-22 |
| CN107494365B true CN107494365B (en) | 2020-08-11 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NO20092427L (en) * | 2009-01-30 | 2010-08-02 | Feed Control Norway As | Device for deburring aquatic organisms |
| CN203279653U (en) * | 2013-05-29 | 2013-11-13 | 山东省海水养殖研究所 | Fish pouring device for floating type net cage culture |
| CN204968971U (en) * | 2015-09-17 | 2016-01-20 | 通威股份有限公司 | Device is supported temporarily to pond culture fish |
| CN106359240B (en) * | 2016-08-23 | 2019-05-24 | 广东海洋大学 | A kind of progressive releasing device of fish self-adapting type |
| CN206213056U (en) * | 2016-11-17 | 2017-06-06 | 中国水产科学研究院南海水产研究所 | A kind of trapping receives seedling and cultivates the net cage device of macula lutea basket fish |
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