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CN115281137A - Feeding method suitable for deep-sea large-scale aquaculture net cage - Google Patents

Feeding method suitable for deep-sea large-scale aquaculture net cage Download PDF

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Publication number
CN115281137A
CN115281137A CN202210848374.3A CN202210848374A CN115281137A CN 115281137 A CN115281137 A CN 115281137A CN 202210848374 A CN202210848374 A CN 202210848374A CN 115281137 A CN115281137 A CN 115281137A
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China
Prior art keywords
feed
water
pipe
feeding
aquaculture net
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Pending
Application number
CN202210848374.3A
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Chinese (zh)
Inventor
王哨华
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Neptune Zhoushan Zhejiang Blue Ocean Development Co ltd
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Neptune Zhoushan Zhejiang Blue Ocean Development Co ltd
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Priority to CN202210848374.3A priority Critical patent/CN115281137A/en
Publication of CN115281137A publication Critical patent/CN115281137A/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
    • A01K61/80Feeding devices
    • 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
    • A01K61/60Floating cultivation devices, e.g. rafts or floating fish-farms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40Details of construction of the flow constriction devices
    • G01F1/44Venturi tubes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296Acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • 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)
  • Physics & Mathematics (AREA)
  • Environmental Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Medicinal Chemistry (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

A feeding method suitable for a large-scale aquaculture net cage in deep sea adopts a special feeding system, feed in a storage tank is unloaded to a feed delivery pipe through an unloader, and meanwhile, a fan works and supplies air to the feed delivery pipe through an air outlet pipe, so that the feed is blown to a feed tank along the feed delivery pipe; the flat rotary feeder is driven by a feeding motor and then sends the feed to a Venturi water-material mixer; the self-suction centrifugal pump sucks seawater through a water inlet pipe, then conveys the seawater to a Venturi water material mixer through a water outlet pipe, and takes feed sucking water away under the action of the Venturi water material mixer to form a water material mixture; the water-material mixture is conveyed to the three-way conversion valve along the discharge pipe and then is connected with a feed disperser in the aquaculture net cage through a submarine pipeline for feeding. The feeding amplification device can realize long-distance conveying and is provided with a plurality of discharging channels, so that a plurality of aquaculture net cages can be fed at the same time.

Description

Feeding method suitable for deep-sea large-scale aquaculture net cage
Technical Field
The invention relates to the technical field of deepwater feeding of marine ships, platforms and large-scale aquaculture net cages, in particular to a feeding method suitable for a large-scale deep-sea aquaculture net cage.
Background
In the existing deep sea aquaculture net cage mode, the feeding mode is generally mechanical air throwing, feed is sprayed to the water surface from the air and gradually sinks, and fish schools are gathered on the surface water surface to take food. The feeding mode is only suitable for the full-floating net cage floating on the sea surface, and can not be applied to the wind-wave resistant semi-submersible or base net cage.
Disclosure of Invention
Aiming at the defects in the problems, the invention provides a feeding method suitable for a deep-sea large-scale aquaculture net cage.
In order to achieve the purpose, the invention provides a feeding method suitable for a deep-sea large-scale aquaculture net cage, which adopts a special feeding system, wherein the feeding system comprises a self-suction centrifugal pump and a Venturi water mixer, a water inlet of the self-suction centrifugal pump is communicated with seawater through a water inlet pipe, a water outlet of the self-suction centrifugal pump is connected with the Venturi water mixer through a water outlet pipe, a flow meter is arranged on the water outlet pipe, a feed inlet of the Venturi water mixer is communicated with a flat rotary feeder, a discharge outlet of the Venturi water mixer is provided with a three-way change-over valve through a discharge pipe, and an output end of the three-way change-over valve is connected with a feed disperser in the aquaculture net cage through a seabed pipeline;
the feeding port of the flat rotary feeder is connected with a feeding tank, the flat rotary feeder is driven by a feeding motor to feed materials, the feeding port at the upper part of the feeding tank is communicated with a discharger at the lower part of the storage tank through a conveying pipe, the air outlet of a fan is connected with the discharger through an air outlet pipe, the air outlet pipe is communicated with the conveying pipe, and the air inlet of the fan is connected with an air inlet pipe;
the feeding method sequentially comprises the following steps:
firstly, discharging the feed in the storage tank to a feed conveying pipe through an unloader, simultaneously operating a fan and supplying air to the feed conveying pipe through an air outlet pipe, and blowing the feed to the feed tank along the feed conveying pipe;
secondly, the horizontal rotary feeder is driven by a feeding motor and then feeds to a feed inlet of a Venturi water mixer;
thirdly, the self-suction centrifugal pump sucks seawater through a water inlet pipe, then conveys the seawater to a Venturi water material mixer through a water outlet pipe, takes away feed sucking water to form a water material mixture under the action of the Venturi water material mixer, and a flowmeter on the water outlet pipe monitors the flow rate of the seawater in real time;
fourthly, the water-material mixture is conveyed to the three-way conversion valve along the discharge pipe and then is connected with a feed disperser in the aquaculture net cage through a submarine pipeline for feeding.
As a further improvement of the invention, a temperature and humidity sensor and an ultrasonic level sensor are arranged at the upper part of the material storage tank.
Temperature and humidity sensor is arranged in the temperature and humidity of real-time supervision storage tank, and ultrasonic wave level sensor is used for monitoring the fodder volume of storage tank, reports to the police less than 20%, and then can't start-up equipment less than 10%.
As a further improvement of the invention, an emergency cut-off valve is arranged on the material conveying pipe.
As a further improvement of the invention, the feeding tank is provided with an ultrasonic level sensor I and a water immersion sensor, and is also connected with an exhaust pipe.
Ultrasonic wave level sensor I is arranged in the fodder volume of monitoring in the feed tank, and the blast pipe (be used for the gas outgoing that comes in with the fan, only leave the fodder, and water logging sensor reports to the police when anti-water or there is ponding in the feed tank to start emergent trip valve closing system, the fan stop work simultaneously.
As a further improvement of the invention, the air outlet pipe is sequentially provided with a flow sensor, an air cooling device and a temperature sensor.
The flow sensor is used for monitoring the wind speed and the flow, the air cooling device is used for cooling the wind blown by the fan, and the temperature sensor is used for monitoring the temperature after the wind cooling.
As a further improvement of the invention, the subsea pipeline extends into the seabed and is laid along the seabed.
The beneficial effects of the invention are as follows:
according to the feeding method, the water-material mixer is utilized to mix seawater and feed to form a water-material mixture, the water-material mixture is dispersed to a plurality of discharge ports through the three-way change-over valve to be output, and the water-material mixture is connected to the feed disperser of the aquaculture net cage through the submarine pipeline laid along the seabed.
Drawings
FIG. 1 is a schematic view of a feeding system;
fig. 2 is a schematic structural diagram of an aquaculture net cage.
In the figure: 1. an air inlet pipe; 2. a fan; 3. an air outlet pipe; 31. a flow sensor; 4. an air cooling device; 5. a temperature sensor; 6. a temperature and humidity sensor; 7. an ultrasonic level sensor; 8. a material storage tank; 9. a discharger; 10. a delivery pipe; 101. an emergency cut-off valve; 11. an ultrasonic level sensor I; 12. a feed tank; 13. an exhaust pipe; 14. a water immersion sensor; 15. a flat rotary feeder; 16. a feeding motor; 17. a water inlet pipe; 18. self-priming centrifugal pumps; 19. a water outlet; 20. a water outlet pipe; 21. a flow meter; 22. a Venturi water material mixer; 23. a discharge pipe; 24. a three-way change-over valve; 25. a subsea pipeline; 26. a culture net cage; 27. a feed disperser.
Detailed Description
The invention relates to a feeding method suitable for a deep-sea large-scale aquaculture net cage, which adopts a special feeding system, wherein the feeding system comprises a self-suction centrifugal pump 18 and a Venturi water mixer 22, a water inlet of the self-suction centrifugal pump 18 is communicated with seawater through a water inlet pipe 17, a water outlet 19 of the self-suction centrifugal pump 18 is connected with the Venturi water mixer 22 through a water outlet pipe 20, a flow meter 21 is installed on the water outlet pipe 20, a feed inlet of the Venturi water mixer 22 is communicated with a flat rotary feeder 15, a discharge outlet of the Venturi water mixer 22 is provided with a three-way conversion valve 24 through a discharge pipe 23, an output end of the three-way conversion valve 24 is connected with a feed disperser 27 in the aquaculture net cage 26 through a submarine pipeline 25, the submarine pipeline 25 extends into the seabed and is laid along the seabed, and the length of the submarine pipeline 25 can reach 250 meters;
the feeding port of the flat-spiral discharging device 15 is connected with a feeding tank 12, an ultrasonic level sensor I11 and a water sensor 14 are arranged on the feeding tank 12, the feeding tank 12 is further connected with an exhaust pipe 13, the ultrasonic level sensor I11 is used for monitoring the feed amount in the feeding tank 12, the exhaust pipe 13 is used for exhausting air coming in by a fan and only remaining feed, the water sensor 14 gives an alarm when water is returned or accumulated in the feeding tank 12 and starts an emergency stop valve 101 closing system, meanwhile, the fan 2 stops working, the flat-spiral discharging device 15 is driven by a feeding motor 16 to feed, the feeding port at the upper part of the feeding tank 12 is communicated with a discharger 9 at the lower part of a storage tank 8 through a feeding pipe 10, the feeding pipe 10 is provided with the emergency stop valve 101, a temperature and humidity sensor 6 and an ultrasonic level sensor 7 are mounted on the upper portion of the storage tank 8, the temperature and humidity sensor 6 is used for monitoring the temperature and humidity in the storage tank 8 in real time, the ultrasonic level sensor 7 is used for monitoring the feed amount of the storage tank 8, when the feed amount is lower than 20%, the ultrasonic level sensor can not start the equipment when the feed amount is lower than 10%, an air outlet of the fan 2 is connected with the discharger 9 through an air outlet pipe 3, the air outlet pipe 3 is sequentially provided with a flow sensor 31, an air cooling device 4 and a temperature sensor 5, the flow sensor 31 is used for monitoring the air speed and flow rate, the air cooling device 4 is used for cooling air blown in by the fan, the temperature sensor 5 is used for monitoring the temperature after air cooling, the air outlet pipe 3 is communicated with the material conveying pipe 10, and an air inlet of the fan 2 is connected with the air inlet pipe 1;
the feeding method sequentially comprises the following steps:
firstly, discharging the feed in the feed storage tank 8 to a feed conveying pipe 10 through a discharger 9, simultaneously operating a fan 2 and supplying air to the feed conveying pipe 10 through an air outlet pipe 3 to blow the feed to a feed tank 12 along the feed conveying pipe 10;
secondly, the flat rotary feeder 15 is driven by a feeding motor 16 and then feeds the feed to a feed inlet of a venturi water mixer 22;
thirdly, after the self-suction centrifugal pump 18 sucks seawater through a water inlet pipe 17, the seawater is conveyed to a Venturi water material mixer 22 through a water outlet pipe 20, feed sucking water is taken away under the action of the Venturi water material mixer 22 to form a water material mixture, and a flow meter 21 on the water outlet pipe 20 monitors the flow rate of the seawater in real time;
the venturi operating principle is briefly described:
when the seawater from the centrifugal pump 18 flows in the pipeline of the venturi water mixer, the dynamic pressure reaches the maximum value at the narrowest part of the pipeline, the static pressure reaches the minimum value, and the speed of the liquid rises because the area of the cross section of the through flow is reduced; the whole inrush current is subjected to a pipeline shrinking process in the same time, so that the pressure is also reduced in the same time; thereby generating a pressure differential that provides an external suction force at the vacuum region; the feed of the flat rotary feeder 15 is sucked and sprayed out together through the spraying pipe of the Venturi water mixer.
Fourthly, the water-material mixture is conveyed along the discharge pipe 23 to the three-way change-over valve 24, and then is fed by connecting the feed disperser 27 in the aquaculture net cage 26 through the submarine pipeline 25.
According to the feeding method, the water-material mixture is formed by mixing seawater and feed by using the Venturi water-material mixer, the water-material mixture is dispersed to a plurality of discharge ports through the three-way conversion valve and is output, and the submarine pipeline laid along the seabed is connected to the feed disperser of the aquaculture net cage.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A feeding method suitable for a large-scale deep-sea aquaculture net cage is characterized in that: a special feeding system is adopted, the feeding system comprises a self-suction centrifugal pump (18) and a Venturi water mixer (22), a water inlet of the self-suction centrifugal pump (18) is communicated with seawater through a water inlet pipe (17), a water outlet (19) of the self-suction centrifugal pump (18) is connected with the Venturi water mixer (22) through a water outlet pipe (20), a flowmeter (21) is installed on the water outlet pipe (20), a feed inlet of the Venturi water mixer (22) is communicated with a horizontal rotation type feeder (15), a discharge outlet of the Venturi water mixer (22) is provided with a three-way switching valve (24) through a discharge pipe (23), and an output end of the three-way switching valve (24) is connected with a feed disperser (27) in a breeding net cage (26) through a submarine pipeline (25);
a feed inlet of a flat-rotating feeder (15) is connected with a feed tank (12), the flat-rotating feeder (15) is driven by a feed motor (16) to feed materials, a feed inlet at the upper part of the feed tank (12) is communicated with a discharger (9) at the lower part of a storage tank (8) through a feed delivery pipe (10), an air outlet of a fan (2) is connected with the discharger (9) through an air outlet pipe (3), the air outlet pipe (3) is communicated with the feed delivery pipe (10), and an air inlet of the fan (2) is connected with an air inlet pipe (1);
the feeding method sequentially comprises the following steps:
firstly, discharging the feed in a storage tank (8) to a feed conveying pipe (10) through a discharger (9), simultaneously operating a fan (2) and supplying air to the feed conveying pipe (10) through an air outlet pipe (3) to blow the feed to a feed tank (12) along the feed conveying pipe (10);
secondly, the horizontal rotary feeder (15) is driven by a feeding motor (16) and then feeds the feeds to a feed inlet of a Venturi water mixer (22);
thirdly, the self-suction centrifugal pump (18) sucks seawater through a water inlet pipe (17), then conveys the seawater to a Venturi water material mixer (22) through a water outlet pipe (20), takes feed sucking water away to form a water material mixture under the action of the Venturi water material mixer (22), and a flow meter (21) on the water outlet pipe (20) monitors the flow rate of the seawater in real time;
fourthly, the water-material mixture is conveyed to a three-way conversion valve (24) along a discharge pipe (23) and then is connected with a feed disperser (27) in a culture net cage (26) through a submarine pipeline (25) for feeding.
2. The feeding method suitable for the large-scale deep-sea aquaculture net cages according to claim 1, characterized in that: the upper part of the material storage tank (8) is provided with a temperature and humidity sensor (6) and an ultrasonic level sensor (7).
3. The feeding method suitable for the large deep-sea aquaculture net cages according to claim 1, characterized in that: an emergency cut-off valve (101) is arranged on the material conveying pipe (10).
4. The feeding method suitable for the large deep-sea aquaculture net cages according to claim 1, characterized in that: an ultrasonic level sensor I (11) and a water immersion sensor (14) are arranged on the feeding tank (12), and the feeding tank (12) is also connected with an exhaust pipe (13).
5. The feeding method suitable for the large-scale deep-sea aquaculture net cages according to claim 1, characterized in that: the air outlet pipe (3) is sequentially provided with a flow sensor (31), an air cooling device (4) and a temperature sensor (5).
6. The feeding method suitable for the large deep-sea aquaculture net cages according to claim 1, characterized in that: the subsea pipeline (25) extends into the seabed and is laid along the seabed.
CN202210848374.3A 2022-07-19 2022-07-19 Feeding method suitable for deep-sea large-scale aquaculture net cage Pending CN115281137A (en)

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CN202210848374.3A CN115281137A (en) 2022-07-19 2022-07-19 Feeding method suitable for deep-sea large-scale aquaculture net cage

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CN202210848374.3A CN115281137A (en) 2022-07-19 2022-07-19 Feeding method suitable for deep-sea large-scale aquaculture net cage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118000144A (en) * 2024-03-22 2024-05-10 中集渔业科技有限公司 Fishery breeding feeder

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CN111528164A (en) * 2020-06-08 2020-08-14 张小燕 Turtle and fish ecological polyculture underwater feeding device
CN113812368A (en) * 2020-06-18 2021-12-21 新疆天蕴有机农业有限公司 Hydrodynamic remote feeding system
CN112021234A (en) * 2020-09-03 2020-12-04 智旅环保科技(上海)有限公司 Deep sea fish culture life support system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118000144A (en) * 2024-03-22 2024-05-10 中集渔业科技有限公司 Fishery breeding feeder

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Application publication date: 20221104