CN112841087A - Controllable net-free fish box - Google Patents

Controllable net-free fish box Download PDF

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Publication number
CN112841087A
CN112841087A CN202110289397.0A CN202110289397A CN112841087A CN 112841087 A CN112841087 A CN 112841087A CN 202110289397 A CN202110289397 A CN 202110289397A CN 112841087 A CN112841087 A CN 112841087A
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CN
China
Prior art keywords
base
velocity gradient
sound velocity
underwater
bubble
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Pending
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CN202110289397.0A
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Chinese (zh)
Inventor
李雪滢
曹培政
张宇
宋忠长
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Xiamen University
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Xiamen University
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Priority to CN202110289397.0A priority Critical patent/CN112841087A/en
Publication of CN112841087A publication Critical patent/CN112841087A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M29/00Scaring or repelling devices, e.g. bird-scaring apparatus
    • A01M29/16Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Birds (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

A controllable net-free fish box relates to aquaculture. The device is provided with a base, an air duct, a tubular air source, a sound velocity gradient orifice plate, an underwater loudspeaker and a rod-shaped support; a circle of groove is arranged on the periphery of the base and used for placing a heavy object in the groove, so that the whole body is fixed at the bottom of the culture field; the tubular gas source is uniformly paved in the base, and the sound velocity gradient pore plate is arranged at the top of the base; the air guide pipe is arranged on the base and used for connecting the tubular air source with an external air pump so as to generate nano bubbles; the nano bubbles form a bubble curtain under the action of the sound velocity gradient pore plate to surround the culture area; the underwater loudspeaker is nested on the sound wave bar-shaped bracket; the rod-shaped support is nested in the groove at the bottom of the base and extends upwards through the sound velocity gradient pore plate, so that the underwater loudspeaker is placed in the bubble curtain. The method is characterized in that physics and acoustics are combined, and a bubble curtain and sound waves with different frequencies of a loudspeaker are used for isolating the water bottom of a breeding field to replace a fishing net fence of a traditional net cage, so that net-free breeding is realized.

Description

Controllable net-free fish box
Technical Field
The invention relates to the field of aquaculture in shallow sea, lakes, ponds and the like, in particular to a controllable net-free fish box realized by utilizing a bubble curtain and physical and acoustic dual regulation.
Background
At present, many researches on fish farming boxes exist, but most of the researches do not relate to the application of sound waves and bubble curtains, and related researches on realizing underwater net-free fish boxes by using the bubble curtains and physical and acoustic dual control are not proposed yet. Although the traditional net cage can realize the effect of gathering the economic aquatic organisms which are released manually for culture, the traditional net cage often has the defect of serious attachment of fouling organisms, so that water flow in the net cage is not smooth, water flow exchange is blocked, the oxygen content in water is low, fishes are easy to get ill and infect, and the health condition of the produced fishes is worried. Meanwhile, for the traditional net cage, in the culture process, excrement and feed of fishes are deposited at the bottom of the culture net, the culture net is difficult to clean, a large amount of manpower, material resources and financial resources are consumed for cleaning and replacing the net clothes every time, and self and environmental pollution is easily caused if the net clothes are not cleaned in time. In addition, the novel marine ranching cultivation idea is provided and applied, the traditional large net cage is very heavy and poor in mobility, the popularization and construction of the marine ranching are difficult to realize, the large-area extensive cultivation staying for a long time easily causes damage to the ecological environment of some sea areas in China, fishery resources decline, the sustainable development of coastal and offshore marine fishery and marine organism industry in China is seriously influenced, and a series of economic, ecological and social problems are brought.
Disclosure of Invention
The invention aims to overcome the problems that the existing fish box is difficult to detach and clean, fouling organisms of a purse net are easy to attach, the organisms are protected, a ship is easy to touch the net, the rotation of a marine ranching is difficult to realize, and the like, and the limitation of the application of fish box aquaculture, and provides a controllable net-free fish box realized by using a bubble curtain and acoustic double regulation.
The invention comprises a bubble generating device and a sound wave generating device; the bubble generating device is provided with a base, an air guide pipe, a tubular air source and a sound velocity gradient pore plate, and the sound wave generating device is provided with an underwater loudspeaker and a rod-shaped support;
a circle of groove is formed in the periphery of the base and used for placing a heavy object in the groove, so that the whole body is fixed to the bottom of a culture field; the tubular gas source is uniformly paved in the base, and the sound velocity gradient pore plate is arranged at the top of the base; the air guide pipe is arranged on the base and used for connecting the tubular air source with an external air pump so as to generate nano bubbles; the nano bubbles form a bubble curtain under the action of the sound velocity gradient pore plate to surround the culture area;
the underwater loudspeaker is nested on the sound wave bar-shaped bracket; the rod-shaped support is nested in the groove at the bottom of the base and extends upwards through the sound velocity gradient pore plate, so that the underwater loudspeaker is placed in the bubble curtain.
At least 4 underwater loudspeakers can be arranged, and at least 4 underwater loudspeakers are uniformly distributed; the frequency of the sound wave of the underwater loudspeaker can be adjusted.
The sound velocity gradient pore plates have the same aperture, the distance between the pores is gradually changed, and the two sides are sparse and the middle is sparse, so that the sound velocity gradient between the bubble curtains is realized.
The working principle of the invention is given below:
the invention applies the combination of physics and acoustics, and utilizes the bubble curtain and the sound wave isolation of different frequencies of a loudspeaker to replace the fishing net enclosure of the traditional net cage at the water bottom of a culture field so as to realize the net-free culture; the periphery of the culture area is surrounded by a bubble curtain, and the economic aquatic organisms are isolated from the external water area by using a sound field formed by sound waves with different frequencies emitted by an underwater loudspeaker arranged in the bubble curtain; the fish box is divided into a bubble curtain generating part and a sound wave generating part; the bubble curtain is formed by nanometer bubbles sent by a tubular air source fully paved on the base through a sound velocity gradient orifice plate, and the conduit is used for connecting the air source with an external air pump; the sound waves are emitted by an underwater loudspeaker nested on the rod-shaped support; the bubble curtain generating part and the sound wave generating part are connected into a whole through the base and the rod-shaped bracket. The speakers are uniformly distributed underwater, so that the sound waves just cover the whole bubble curtain, the frequency of the sound waves of the speakers underwater is adjustable, and therefore, the cultured economic organisms can be limited on the bubble wall, and the fouling organisms and the cultured organisms can be kept away from the culture area.
Compared with the prior art, the invention has the beneficial effects that:
the invention is a bubble curtain (physical) and acoustic double regulation, and utilizes the bubble curtain and sound wave isolation of different frequencies of a loudspeaker to replace a fishing net fence of a traditional net cage at the bottom of a culture field so as to realize net-free culture, thereby not only avoiding the net contact of ships and other organisms, but also being capable of driving away fouling organisms and natural enemies of economic organisms without heavy fishing net structures and sound waves continuously emitted from sources. The invention has the advantages of structure and acoustic adjustability, simple overall design and modularization in the maximum degree, for example, the base, the sound velocity gradient pore plate, the tubular gas source and the like are all detachable parts, and the base can be reconstructed and installed according to different breeding sites. Because the device's flexibility, consequently can form the passageway through bubble curtain and sound wave effect in different waters, realize breeding economic creature's breed place conversion, make "marine ranch" put in turn and become reality, alleviate the destruction of breed to the waters. Therefore, the method can be applied to the aquaculture field of shallow sea, lakes, ponds and the like, and is close to nature and carries out the environmental protection concept.
Drawings
FIG. 1 is a schematic diagram of a practical application scenario of an embodiment of the present invention;
FIG. 2 is a schematic diagram (top view) of a practical application scenario of an embodiment of the present invention;
FIG. 3 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 4 is a schematic structural view in a front view of an embodiment of the present invention;
FIG. 5 is a schematic top view of an embodiment of the present invention;
fig. 6 is a schematic view of the internal structure in the top view direction according to the embodiment of the present invention.
Each of the labels in the figure is: the device comprises a base 1, an underwater loudspeaker 2, an air duct 3, a tubular air source 4, a rod-shaped support 5, a sound velocity gradient pore plate 6, an air bubble curtain 10, a wheel-laying water area channel 11, an air bubble generating switch 13 and a switch hinge 14, wherein the base is a base, the air duct 3 is an air duct, the tubular air source 4 is a tubular air source, the rod-shaped support is a rod-shaped support, the sound velocity gradient pore plate 6 is a sound.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention mainly comprises a base (1), an underwater loudspeaker (2), an air guide pipe (3), a tubular air source (4), a rod-shaped support (5) and a sound velocity gradient pore plate (6), wherein the base (1), the air guide pipe (3), the tubular air source (4) and the sound velocity gradient pore plate (6) form a bubble generating device, and the underwater loudspeaker (2) and the rod-shaped support (5) form a sound wave generating device.
The base of the invention can be designed into any shape according to the environmental requirements and the like, and the non-net fish box applied to a circular culture area is taken as an example: the base (1) is a circular cylinder, a circle of groove is surrounded on the periphery, and a heavy object is placed in the groove, so that the whole body is fixed at the bottom of the breeding field. The tubular gas source (4) is uniformly paved in the base, and the sound velocity gradient pore plate (6) serves as the top of the base. The tubular air source (4) is connected with an external air pump through the air duct (3), so that the tubular air source can continuously emit upward nano bubbles, a bubble curtain (10) is formed under the action of the sound velocity gradient pore plate (6), and the bubble curtain (10) surrounds a culture area. The aperture of the sound velocity gradient pore plate (6) is consistent, but the distance between the pores gradually changes, the two sides are sparse, the middle is sparse, and accordingly the bubble curtain is sparse, and the sound velocity gradient between the bubble curtains is achieved. By now, the bubble generating device has been completed.
The sound waves are emitted by an underwater loudspeaker (2) nested on a rod-shaped support (5). The rod-shaped support (5) and the base are nested in a groove in the bottom of the base (1) and extend upwards through the sound velocity gradient pore plate (6), so that the underwater loudspeaker (2) is placed in the bubble curtain.
The sound waves of the four underwater speakers (2) which are uniformly distributed just cover the whole bubble curtain (10), the sound wave frequency of the underwater speakers (2) is adjustable, so that the cultured economic organisms can be limited on the bubble wall, and the fouling organisms and the cultured organisms can avoid a culture area. By now, the acoustic wave generating apparatus has been completed.
The bubble curtain generating part and the sound wave generating part are integrated through the connection of the base and the rod-shaped bracket.
With reference to fig. 3 and 4, an embodiment of a specific parameter of the present invention:
in the base (1), the inner radius is 20m, the outer radius is 25m, the outer radius of the peripheral groove is 25.7m, and the thickness of all the wall thicknesses and the bottom of the base are 0.2 m.
The shape of the underwater loudspeaker (2) is horn-shaped.
The diameter of the air duct (3) is 0.4 m.
The rod-shaped support (5) has a diameter of 0.1m and a height of 20 m.
The inner radius of the sound velocity gradient pore plate (6) is 20m, the outer radius is 25m, and the thickness is 0.2 m.
With reference to fig. 1 and 2: the invention (A) is arranged at the bottom of a culture field, and the underwater culture field is surrounded by sound waves emitted by the bubble curtain (10) and the array underwater loudspeaker (2), so that the cultured economic organisms (12) are limited in the water area of the culture field. As the cultivation is carried out in one water area for a long time, the local water area is greatly damaged, so that the economic organisms (12) can be cultivated in rotation after a period of time by taking the principle of 'grassland rotation cultivation' as reference. When the place of farming changes needs to be carried out, only need open the bubble of putting waters passageway (11) and take place switch (13), wherein the bubble takes place switch (13) controllable, and when opening, the bubble can take place, and is closed, and the bubble does not take place, through the establishment of bubble emergence switch (13) control putting waters passageway (11) in turn for the economic biology (12) of breed in I district can get into II district's place of farming through putting waters passageway (11) in turn in III district. And after all the cultured economic organisms (12) are completely transferred, closing the bubble generation switch (13) to limit the cultured economic organisms (12) in the culture field of the area II, and finishing the whole round placement process. The mark (14) is a switch hinge.
In conjunction with fig. 5 and 6: the aperture of the sound velocity gradient pore plate (6) is consistent, but the distance between the pores gradually changes, the two sides are sparse, the middle is sparse, and accordingly the bubble curtain is sparse, and the sound velocity gradient between the bubble curtains is achieved. In the area where the bubble curtain is the most dense in the middle, the sound wave propagation medium is close to air, and in the area where the bubble curtains on the two sides are the most sparse, the sound wave propagation medium is close to seawater, and the sound velocity gradient is realized through the sparseness of the bubble curtain.
The invention has the advantages of structural and acoustic adjustability, integral modular design and capability of being reconstructed and installed according to different breeding sites.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (5)

1. The controllable net-free fish box is characterized by comprising a bubble generating device and a sound wave generating device; the bubble generating device is provided with a base, an air guide pipe, a tubular air source and a sound velocity gradient pore plate, and the sound wave generating device is provided with an underwater loudspeaker and a rod-shaped support;
a circle of groove is formed in the periphery of the base and used for placing a heavy object in the groove so as to fix the whole fish box at the bottom of a culture field; the tubular gas source is uniformly paved in the base, and the sound velocity gradient pore plate is arranged at the top of the base; the air guide pipe is arranged on the base and used for connecting the tubular air source with an external air pump so as to generate nano bubbles; the nano bubbles form a bubble curtain under the action of the sound velocity gradient pore plate to surround the culture area;
the underwater loudspeaker is nested on the sound wave bar-shaped bracket; the rod-shaped support is nested in the groove at the bottom of the base and extends upwards through the sound velocity gradient pore plate, so that the underwater loudspeaker is placed in the bubble curtain.
2. The controllable wireless fish box of claim 1, wherein at least 4 underwater speakers are provided.
3. A controllable wireless fish cage according to claim 2, wherein said at least 4 underwater speakers are evenly distributed.
4. The controllable wireless fish box as claimed in claim 1, wherein the frequency of the sound wave of the underwater speaker is adjustable.
5. The controllable wireless fish box of claim 1, wherein the sound velocity gradient pore plates have uniform pore diameter, gradually changed interval between pores, sparse two sides and sparse middle to realize sound velocity gradient between bubble curtains.
CN202110289397.0A 2021-03-18 2021-03-18 Controllable net-free fish box Pending CN112841087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110289397.0A CN112841087A (en) 2021-03-18 2021-03-18 Controllable net-free fish box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110289397.0A CN112841087A (en) 2021-03-18 2021-03-18 Controllable net-free fish box

Publications (1)

Publication Number Publication Date
CN112841087A true CN112841087A (en) 2021-05-28

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Application Number Title Priority Date Filing Date
CN202110289397.0A Pending CN112841087A (en) 2021-03-18 2021-03-18 Controllable net-free fish box

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114521529A (en) * 2022-02-25 2022-05-24 三亚热带水产研究院 Land-based circulating water culture system and culture method for tunas of yellow fins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114521529A (en) * 2022-02-25 2022-05-24 三亚热带水产研究院 Land-based circulating water culture system and culture method for tunas of yellow fins

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