WO2021182547A1 - Oxygen control system for fish and shellfish culture tank - Google Patents

Oxygen control system for fish and shellfish culture tank Download PDF

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Publication number
WO2021182547A1
WO2021182547A1 PCT/JP2021/009668 JP2021009668W WO2021182547A1 WO 2021182547 A1 WO2021182547 A1 WO 2021182547A1 JP 2021009668 W JP2021009668 W JP 2021009668W WO 2021182547 A1 WO2021182547 A1 WO 2021182547A1
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Prior art keywords
oxygen
valve
fish
emergency
automatic
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PCT/JP2021/009668
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French (fr)
Japanese (ja)
Inventor
総一郎 林
是道 林
愼平 林
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株式会社林養魚場
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Priority to KR1020217027492A priority Critical patent/KR102667339B1/en
Publication of WO2021182547A1 publication Critical patent/WO2021182547A1/en

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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
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
    • 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
    • A01K61/10—Culture of aquatic animals of fish
    • 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
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B01F21/30—Workflow diagrams or layout of plants, e.g. flow charts; Details of workflow diagrams or layout of plants, e.g. controlling means
    • 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

Definitions

  • the present invention maintains the amount of dissolved oxygen in a fish and shellfish aquaculture tank at normal times, and automatically supplies oxygen to the aquaculture tank in an emergency such as a power unit failure or a power failure. Regarding the system.
  • Patent Document 1 Management of oxygen concentration in fish and shellfish aquaculture tanks using circulating water is an indispensable and indispensable task that cannot be tolerated.
  • Patent Document 1 As a technique for controlling this oxygen concentration, for example, Patent Document 1 is described.
  • an oxygen concentration sensor is provided in the culture water of the culture tank, and when it is detected that the oxygen content in the water is 90% or less in saturation, the oxygen tank is controlled by an automatic controller.
  • the valve is automatically operated to supply oxygen from the oxygen pipe to the culture tank until it is saturated.
  • the present invention can maintain the dissolved oxygen amount in the fish and shellfish aquaculture tank, and can automatically supply oxygen to the aquaculture tank in an emergency such as a power unit failure or a power failure, and in particular, the dissolved oxygen amount can be arbitrarily set.
  • the purpose is to provide an oxygen control system for fish and shellfish aquaculture tanks that can maintain high-density aquaculture of fish at all times and cultivate with high business efficiency under a high amount of dissolved oxygen that cannot be found in nature. ..
  • the present invention has taken the following technical measures in order to solve the above problems.
  • An oxygen dissolving device equipped with a water level sensor is connected to a fish and shellfish farm equipped with a dissolved oxygen sensor and an emergency oxygen disperser via a first water supply pipe and a second water supply pipe, and the oxygen is described.
  • the melting device and the fish and shellfish farming tank are connected by an oxygen water sending pipe provided with a second automatic on-off valve, and the oxygen tank and the oxygen dissolving device are connected to the first pressure regulating valve and the first automatic on-off valve 8.
  • the oxygen tank and the emergency oxygen disperser are connected by an oxygen feeder equipped with an oxygen flow meter, and an emergency oxygen equipped with a second pressure regulating valve, an emergency automatic on-off valve and an emergency oxygen flow meter.
  • a first electromagnetic valve is arranged in a second air supply pipe that is connected by a transmission pipe and reaches the first automatic on-off valve in the oxygen transmission pipe from the compressed air tank, and the first electromagnetic valve is automatically operated.
  • a second electromagnetic valve is arranged at the branch of the second air supply pipe, which is electrically connected to the control device by a circuit and connects the compressed air tank to the emergency automatic on-off valve in the emergency oxygen supply pipe.
  • the second electromagnetic valve is electrically connected to the automatic control device by a circuit, and the first automatic on-off valve, the second automatic on-off valve and the emergency automatic on-off valve are connected to the compressed air tank.
  • the opening and closing operation is performed by the compressed air in the above, numerical data for control is set in advance in the automatic control device, and the flow rate of high-concentration oxygen water injected from the oxygen dissolving device is set to the first of the oxygen water transmission pipe.
  • the emergency automatic on-off valve of the emergency oxygen transmission pipe is opened.
  • the first automatic on-off valve in the oxygen transmission pipe is automatically controlled by the automatic control device to dissolve the oxygen.
  • the oxygen control system for a fish and shellfish farm according to (1) or (2) above, which adjusts the amount of oxygen flowing into the device.
  • the second solenoid valve for the emergency oxygen disperser in the fish and shellfish farming tank is of a type that is closed when energized, and automatically opens and operates when power is cut off due to a disaster or the like.
  • Compressed air is sent from the compressed air tank to the emergency automatic on-off valve in the emergency oxygen transmission pipe, the emergency automatic on-off valve is opened by the operation of the compressed air, and oxygen is released to the emergency oxygen disperser.
  • the oxygen control system for a fish and shellfish culture tank according to any one of (1) to (3) above, which is to be injected into the water of the fish and shellfish culture tank.
  • the dissolved oxygen concentration which is an important growth index in fish and shellfish farming, can be automatically controlled to an arbitrary value.
  • oxygen is automatically injected into the aquaculture tank by the emergency oxygen disperser, so that it is possible to prevent a fish death accident due to trouble or the like.
  • the manual on-off valve since the manual on-off valve is arranged in the pipe pass pipe provided next to each automatic on-off valve in some circuits, the manual on-off valve can be arbitrarily opened and closed to provide an emergency. You can take action.
  • the automatic control device when the oxygen concentration in the aquaculture tank exceeds the upper limit value, the automatic control device is activated to adjust the automatic on-off valve to automatically control the oxygen supply, and the normal oxygen concentration. Can be.
  • the solenoid valve for the emergency oxygen disperser is of a type that is closed when energized, and automatically opens when the power is cut off due to a disaster or the like, so that an earthquake occurs.
  • the solenoid valve inevitably opens, so oxygen is automatically supplied from the emergency oxygen disperser to the fish and shellfish farm.
  • FIG. 1 a water treatment tank 2 connected by a first water pipe 1A is arranged next to a fish and shellfish farming tank 1, and an oxygen dissolving device 3 connected by a second water pipe 2A is arranged next to the water treatment tank 2.
  • the water treatment tank 2 is subjected to dust removal and other treatments.
  • a pump 2B is arranged in the middle of the second water pipe 2A to supply the treated water pumped from the water treatment tank 2 to the oxygen dissolution device 3.
  • a first manual on-off valve 9 is provided from an oxygen tank 7 to a first automatic on-off valve 8 and a bypass pipe 9A provided on a side portion via a first pressure adjusting valve 7B.
  • Oxygen is supplied through the arranged oxygen transmission pipe 8A.
  • An oxygen flow meter 10 is arranged in the oxygen transmission pipe 8A.
  • Oxygen-dissolved water is supplied from the oxygen-dissolving device 3 to the fish and shellfish aquaculture tank 1 via the oxygen-dissolved water pipe 3A, and the oxygen-dissolved water pipe 3A has a second automatic on-off valve 4 operated by air.
  • a second manual on-off valve 5 is arranged in parallel with the bypass pipe 5A provided on the side portion.
  • the oxygen dissolving device 3 is provided with a water level sensor 3B (or a pressure sensor) electrically connected to a sequencer type automatic control device (PLC) 6. Further, a dissolved oxygen sensor (DO sensor) 14 to which a line 6E is connected from a sequencer type automatic control device 6 is arranged in the fish and shellfish farming tank 1, and the inside of the fish and shellfish farming tank 1 is provided. The oxygen concentration of the seafood is detected, and the related equipment is controlled by comparing with the numerical data preset by the automatic control device 6.
  • PLC a dissolved oxygen sensor
  • An emergency oxygen disperser 15 for emergencies is arranged in the fish and shellfish farming tank 1, and oxygen is supplied from the oxygen tank 7 via an oxygen transmission pipe 7A and an emergency oxygen transmission pipe 11. NS.
  • a second pressure regulating valve 7C, an emergency automatic on-off valve 11A, and a third manual on-off valve 12 are provided on the side bypass pipe 12A in the middle of the oxygen sending pipe 7A and the emergency oxygen sending pipe 11. It is arranged.
  • an emergency oxygen flow meter 13 is arranged in the middle, and the amount of oxygen injected from the emergency oxygen disperser 15 into the fish and shellfish aquaculture tank 1 is adjusted.
  • the emergency oxygen disperser 15 has an arbitrary shape such as an object in which a large number of pores are formed.
  • the first automatic on-off valve 8 for oxygen and the emergency automatic on-off valve 11A are operated by the first solenoid valve 16 and the second solenoid valve 17 controlled by the automatic control device 6, and both solenoid valves.
  • the power supply switching for 16 and 17 is operated by the compressed air sent from the compressed air tank 18 via the second air supply pipe 18B, but both solenoid valves 16 and 17 are of a type that are closed when energized. It inevitably opens in an emergency such as power interruption.
  • the signal from the dissolved oxygen sensor 14 installed in the fish and shellfish farming tank 1 is connected to the automatic control device 6 to obtain a preset amount of dissolved oxygen.
  • the flow rate of high-concentration oxygen water injected from the oxygen dissolving device 3 into the fish and shellfish farming tank 1 via the oxygen water feeding pipe 3A is automatically adjusted by the second automatic on-off valve 4, and the fish and shellfish This is a mechanism for keeping the amount of dissolved oxygen in the culture tank 1 at a preset value.
  • the emergency automatic operating valve 11A automatically opens when the amount of dissolved oxygen falls below a preset amount, and the emergency oxygen installed on the bottom surface of the fish and shellfish aquaculture tank 1. Oxygen water is automatically released from the disperser 15, and the dissolved oxygen in the fish and shellfish aquaculture tank 1 is set to be rapidly increased.
  • the automatic control device 6 can set the amount of dissolved oxygen during normal breeding to an arbitrary value. That is, it is possible to it is possible to produce a high oxygen dissolved state improbable in nature, it can be a farming fish by dense rearing per 1 m 3, maintaining the efficiency of the sales.
  • a lower limit value is set to instruct the fish and shellfish aquaculture tank 1 to inject oxygen from the emergency oxygen disperser 15, or conversely, if the amount of dissolved oxygen is too high.
  • the amount of dissolved oxygen in the fish and shellfish farming tank 1 is controlled by a high concentration produced from the fish and shellfish farming tank 1 or the water treatment tank 2 via the oxygen dissolving device 3 connected by a pump 2B or the like.
  • Oxygen water is adjusted by the flow rate of pouring water into the fish and shellfish culture tank 1, but the rough flow rate at which the dissolved oxygen amount can be maintained is roughly adjusted by the second manual on-off valve 5.
  • the oxygen water transmission pipe 3A of the high-concentration oxygen water is adjusted by adjusting the automatic opening and closing of the second automatic on-off valve 4.
  • the flow rate is instantly increased to raise the dissolved oxygen level in the fish and shellfish aquaculture tank 1.
  • the first automatic on-off valve 8, the second automatic on-off valve 4, and the emergency automatic operation valve 11A are made by a compressor and are stored in the compressed air tank 18 for a while even in the event of a power failure. Since it can operate during the period, it is an air-operated valve, but an electromagnetic valve may also be used.
  • the oxygen dissolving device 3 is based on an oxygen cone, and the signal from the water level sensor 3B is transmitted so that the water level can be maintained at the optimum height in the cone by the water level sensor 3B (or pressure sensor) installed in the main body. It is connected to the sequencer type automatic control device 6 and can automatically control the flow rate of oxygen and the output of the pump 2B so that the water level in the oxygen cone is set in advance, and can maintain the optimum oxygen dissolution efficiency. ..
  • the automatic control device 6 receives a signal from the water level sensor 3B (or pressure sensor) in the oxygen dissolving device 3, and the opening / closing instruction signal is received by the first solenoid. Compressed air opens and closes the first automatic on-off valve 8 by sending to the valve 16 and opening and closing the first solenoid valve 16.
  • the first manual on-off valve 9 is for manually operating and sending oxygen from the oxygen tank 7 to the oxygen dissolving device 3 when the first automatic on-off valve 8 fails or the like.
  • the flow rate of oxygen sent to the oxygen cone can be adjusted by the oxygen flow meter 10 and the first pressure adjusting valve 7B.
  • the second solenoid valve 17 for the emergency oxygen disperser 15 is of a type that is closed when energized, so that electric power can be generated in the event of a disaster or the like.
  • the second solenoid valve 17 for the emergency oxygen disperser 15 When it is shut off, it automatically opens, and compressed air is sent from the compressed air tank 18 to the emergency automatic on-off valve 11A, and the valve is opened by the operation of the compressed air, and oxygen is released from the emergency. It is automatically injected into the water of the fish and shellfish culture tank 1 from the oxygen disperser 15.
  • the third manual on-off valve 12 is for manually opening the valve to allow oxygen to flow when the emergency automatic on-off valve 11A fails or the like.
  • the amount of oxygen delivered to the emergency oxygen disperser 15 can be adjusted by the emergency oxygen flow meter 13 and the second pressure adjusting valve 7C.
  • the first automatic on-off valve 8 and the emergency are operated by air operation with compressed air by opening and closing the first solenoid valve 16 and the second solenoid valve 17.
  • the automatic on-off valve 11A is controlled, it can be replaced with a solenoid valve that opens and closes by an electric signal as well as an automatic valve operated by air.
  • the oxygen dissolving device 3 can also be replaced with various devices such as a low head oxygenator, a float mixing type, and a fine bubble generator.
  • the dissolved oxygen concentration which is an important growth index in fish and shellfish farming, can be automatically controlled to an arbitrary value.
  • oxygen is automatically injected into the fish and shellfish aquaculture tank 1 by the emergency oxygen disperser 15, so that it is possible to prevent a fish death accident due to a trouble or the like.
  • the present invention can maintain a high breeding density per 1 m 3 , it is possible to efficiently cultivate fish and shellfish even in small-scale aquaculture in a narrow land, and maintain an excellent growth rate and thickening coefficient. Because it can be used, it is widely used in the fishery industry in areas where fishery resources are scarce.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The purpose of the present invention is to provide an oxygen control system for fish and shellfish culture tanks, the system being capable of finely adjusting and maintaining the amount of dissolved oxygen in a fish and shellfish culture tank as well as automatically supplying oxygen to a culture tank promptly in the evenet of emergency such as power unit failure, power interruption, etc.　The amount of dissolved oxygen in a fish and shellfish culture tank 1 is managed by a dissolved oxygen sensor 14. The amount of oxygen sent from an oxygen tank 7 to an oxygen dissolving device 3 and the amount of oxygen water entering the fish and shellfish culture tank 1 from the oxygen dissolving device 3 are doubly adjusted by an automatic control device 6 through automatic open/close valves 4, 8. When the amount of dissolved oxygen in the fish and shellfish culture tank 1 is calculated as being a lower limit value, an automatic open/close valve 11 for emergency of an oxygen sending pipe 11A for emergency is opened to release oxygen from an oxygen distributor 15 for emergency to the culture tank 1. When the amount of dissolved oxygen in the fish and shellfish culture tank 1 is calculated as having reached an upper limit value, the amount of oxygen entering the oxygen dissolving device 3 is adjusted, and the amount of oxygen water entering the fish and shellfish culture tank 1 from the oxygen dissolving device 3 is adjusted.

Description

魚介類養殖槽の酸素コントロールシステムOxygen control system for fish and shellfish farms
　本発明は、魚介類養殖槽の通常時の溶存酸素量維持、また動力部の故障や停電時などの非常時に養殖槽に自動的に酸素を供給する、総括的な魚介類養殖槽の酸素コントロールシステムに関する。 The present invention maintains the amount of dissolved oxygen in a fish and shellfish aquaculture tank at normal times, and automatically supplies oxygen to the aquaculture tank in an emergency such as a power unit failure or a power failure. Regarding the system.
　循環水を利用した魚介類養殖槽の酸素濃度の管理は、失敗を許されない欠くことの出来ないもので、重要かつ困難な業務となっている。この酸素濃度をコントロールする技術として、例えば特許文献１に記載されている。 Management of oxygen concentration in fish and shellfish aquaculture tanks using circulating water is an indispensable and indispensable task that cannot be tolerated. As a technique for controlling this oxygen concentration, for example, Patent Document 1 is described.
特開２０１８－２０１４８９号JP-A-2018-201489
　特許文献１における、酸素濃度のコントロールは、養殖槽の養殖水に酸素濃度センサを設け、水中の含有酸素量が、飽和度９０％以下となったことを検知した時には、自動制御器により酸素タンクのバルブを自動操作し、酸素管から養殖槽へ酸素を飽和状態になるまで供給するものである。
　しかし溶存酸素濃度を通常より増加させること、溶存酸素濃度の過剰時、動力部の故障や停電時等に即時に対応することが難しい。
　本発明は、魚介類養殖槽の溶存酸素量維持、また動力部の故障や停電時などの非常時に養殖槽に自動的に酸素を供給することができ、特に溶存酸素量の任意設定ができるため、自然界ではあり得ない高い溶存酸素量の下で、常時魚の高密度飼育を維持し、営業効率の高い養殖をすることができる、魚介類養殖槽の酸素コントロールシステムを提供することを目的としている。 To control the oxygen concentration in Patent Document 1, an oxygen concentration sensor is provided in the culture water of the culture tank, and when it is detected that the oxygen content in the water is 90% or less in saturation, the oxygen tank is controlled by an automatic controller. The valve is automatically operated to supply oxygen from the oxygen pipe to the culture tank until it is saturated.
However, it is difficult to increase the dissolved oxygen concentration more than usual, and to immediately respond to an excessive dissolved oxygen concentration, a power unit failure, a power failure, or the like.
The present invention can maintain the dissolved oxygen amount in the fish and shellfish aquaculture tank, and can automatically supply oxygen to the aquaculture tank in an emergency such as a power unit failure or a power failure, and in particular, the dissolved oxygen amount can be arbitrarily set. The purpose is to provide an oxygen control system for fish and shellfish aquaculture tanks that can maintain high-density aquaculture of fish at all times and cultivate with high business efficiency under a high amount of dissolved oxygen that cannot be found in nature. ..
　本発明は前記課題を解決するために、次のような技術的手段を講じた。 The present invention has taken the following technical measures in order to solve the above problems.
　（１）　溶存酸素センサと非常用酸素分散器とを備えた魚介類養殖槽に、水位センサを備えた酸素溶解装置を第１の送水管及び第２の送水管を介して連結し、前記酸素溶解装置と魚介類養殖槽を、第２の自動開閉弁を備えた酸素水送管で連結し、酸素タンクと前記酸素溶解装置とを、第１の圧力調整弁、第１の自動開閉弁８と酸素流量計を備えた酸素送管で連結し前記酸素タンクと前記非常用酸素分散器とを、第２の圧力調整弁、非常用自動開閉弁と非常用酸素流量計を備えた非常用酸素送管で連結し、圧縮空気タンクから、前記酸素送管における前記第１の自動開閉弁に至る第２の送気管に第１の電磁弁を配設するとともに、該第１の電磁弁を自動制御装置に回路で電気的に接続し、また前記圧縮空気タンクから前記非常用酸素送管における前記非常用自動開閉弁までを結ぶ、第２の送気管の分岐部に第２の電磁弁を配設するとともに、該第２の電磁弁を前記自動制御装置に回路で電気的に接続し、前記第１の自動開閉弁、第２の自動開閉弁及び非常用自動開閉弁を、前記圧縮空気タンクにおける圧縮空気により開閉作動をさせるようにし、前記自動制御装置に制御用の数値データを予め設定しておき、前記酸素溶解装置から高濃度酸素水の注水流量を、前記酸素水送管の前記第２の自動開閉弁の開閉により調節して前記魚介類養殖槽の酸素濃度を調整し、溶存酸素量が下限値と計測された時は、前記非常用酸素送管の前記非常用自動開閉弁を自動的に解放して、前記非常用酸素分散器から酸素を前記魚介類養殖槽に注入するようになっている魚介類養殖槽の酸素コントロールシステム。 (1) An oxygen dissolving device equipped with a water level sensor is connected to a fish and shellfish farm equipped with a dissolved oxygen sensor and an emergency oxygen disperser via a first water supply pipe and a second water supply pipe, and the oxygen is described. The melting device and the fish and shellfish farming tank are connected by an oxygen water sending pipe provided with a second automatic on-off valve, and the oxygen tank and the oxygen dissolving device are connected to the first pressure regulating valve and the first automatic on-off valve 8. The oxygen tank and the emergency oxygen disperser are connected by an oxygen feeder equipped with an oxygen flow meter, and an emergency oxygen equipped with a second pressure regulating valve, an emergency automatic on-off valve and an emergency oxygen flow meter. A first electromagnetic valve is arranged in a second air supply pipe that is connected by a transmission pipe and reaches the first automatic on-off valve in the oxygen transmission pipe from the compressed air tank, and the first electromagnetic valve is automatically operated. A second electromagnetic valve is arranged at the branch of the second air supply pipe, which is electrically connected to the control device by a circuit and connects the compressed air tank to the emergency automatic on-off valve in the emergency oxygen supply pipe. At the same time, the second electromagnetic valve is electrically connected to the automatic control device by a circuit, and the first automatic on-off valve, the second automatic on-off valve and the emergency automatic on-off valve are connected to the compressed air tank. The opening and closing operation is performed by the compressed air in the above, numerical data for control is set in advance in the automatic control device, and the flow rate of high-concentration oxygen water injected from the oxygen dissolving device is set to the first of the oxygen water transmission pipe. When the oxygen concentration in the fish and shellfish farming tank is adjusted by opening and closing the automatic on-off valve of No. 2 and the dissolved oxygen amount is measured as the lower limit value, the emergency automatic on-off valve of the emergency oxygen transmission pipe is opened. An oxygen control system for a fish and shellfish farm that is automatically released to inject oxygen from the emergency oxygen disperser into the fish and shellfish farm.
　（２）　前記魚介類養殖槽における前記第１の自動開閉弁、第２の自動開閉弁及び非常用自動開閉弁のそれぞれの側部には、それぞれバイパス管が設けられ、該各バイパス管にそれぞれ手動開閉弁が配設されて、溶存酸素量を維持できる高濃度酸素水の大まかな流量は、前記手動開閉弁の開閉により調整する前記（１）に記載の魚介類養殖槽の酸素コントロールシステム。 (2) Bypass pipes are provided on each side of the first automatic on-off valve, the second automatic on-off valve, and the emergency automatic on-off valve in the fish and shellfish farming tank, and each of the bypass pipes is provided with a bypass pipe. The oxygen control system for a fish and shellfish aquaculture tank according to (1) above, wherein a manual on-off valve is provided and the rough flow rate of high-concentration oxygen water capable of maintaining the dissolved oxygen amount is adjusted by opening and closing the manual on-off valve.
　（３）　前記魚介類養殖槽における溶存酸素センサが、酸素濃度上限値を計測した時は、前記酸素送管における前記第１の自動開閉弁を前記自動制御装置により自動制御して、前記酸素溶解装置への酸素流入量を調整する前記（１）又は（２）に記載の魚介類養殖槽
の酸素コントロールシステム。 (3) When the dissolved oxygen sensor in the fish and shellfish farm measures the upper limit of oxygen concentration, the first automatic on-off valve in the oxygen transmission pipe is automatically controlled by the automatic control device to dissolve the oxygen. The oxygen control system for a fish and shellfish farm according to (1) or (2) above, which adjusts the amount of oxygen flowing into the device.
　（４）　前記魚介類養殖槽における前記非常用酸素分散器用の第２の電磁弁は、通電時に閉止されるタイプとしてあり、災害時などで電力が遮断された際は自動的に開作動して、前記圧縮空気タンクから圧縮空気が前記非常用酸素送管における非常用自動開閉弁に送られ、その圧縮空気の作動により前記非常用自動開閉弁が開かれて、酸素が前記非常用酸素分散器から前記魚介類養殖槽の水中に注入されるようになっている前記（１）～（３）の何れかに記載の魚介類養殖槽の酸素コントロールシステム。 (4) The second solenoid valve for the emergency oxygen disperser in the fish and shellfish farming tank is of a type that is closed when energized, and automatically opens and operates when power is cut off due to a disaster or the like. , Compressed air is sent from the compressed air tank to the emergency automatic on-off valve in the emergency oxygen transmission pipe, the emergency automatic on-off valve is opened by the operation of the compressed air, and oxygen is released to the emergency oxygen disperser. The oxygen control system for a fish and shellfish culture tank according to any one of (1) to (3) above, which is to be injected into the water of the fish and shellfish culture tank.
　本発明によると、次のような効果が奏せられる。 According to the present invention, the following effects can be achieved.
　前記（1）に記載の魚介類養殖槽の酸素コントロールシステムにおいては、魚介類養殖において重用な生育上の指標である溶存酸素濃度を、任意の値に自動で制御することができるので、これまで自然界では、なかなかあり得なかった高い溶存酸素量の下で、常時、魚の高い飼育密度を維持することができるようになった。
　給餌などにより急激に養殖槽の溶存酸素量が低下するような状況もなく、安定的な環境を維持することができ、優れた生長率や増肉係数を維持することができる。更に、機器のトラブルや自然災害などの非常時には、非常用酸素分散器により自動で酸素が養殖槽に注入されるため、トラブル等による魚の斃死事故を防止することができる。 In the oxygen control system of the fish and shellfish farming tank described in (1) above, the dissolved oxygen concentration, which is an important growth index in fish and shellfish farming, can be automatically controlled to an arbitrary value. In the natural world, it has become possible to maintain a high breeding density of fish at all times under the high amount of dissolved oxygen, which was difficult to achieve.
It is possible to maintain a stable environment without a situation in which the amount of dissolved oxygen in the aquaculture tank suddenly decreases due to feeding or the like, and it is possible to maintain an excellent growth rate and thickening coefficient. Furthermore, in the event of an emergency such as equipment trouble or a natural disaster, oxygen is automatically injected into the aquaculture tank by the emergency oxygen disperser, so that it is possible to prevent a fish death accident due to trouble or the like.
　前記（2）における発明においては、いくつかの回路における各自動開閉弁の横に設けたパイパス管に手動開閉弁が配設されているので、任意に手動開閉弁を開閉作動させて、応急の措置をとることができる。 In the invention of (2) above, since the manual on-off valve is arranged in the pipe pass pipe provided next to each automatic on-off valve in some circuits, the manual on-off valve can be arbitrarily opened and closed to provide an emergency. You can take action.
　前記（3）における発明においては、養殖槽内の酸素濃度が上限値を超えた時には、自動制御装置の作動により、自動開閉弁を調整して自動的に酸素供給を制御し、通常の酸素濃度にすることができる。 In the invention of (3) above, when the oxygen concentration in the aquaculture tank exceeds the upper limit value, the automatic control device is activated to adjust the automatic on-off valve to automatically control the oxygen supply, and the normal oxygen concentration. Can be.
　前記（4）における発明においては、非常用酸素分散器用の電磁弁は、通電時には閉止されるタイプとしてあり、災害時などで電力が遮断された際には、自動的に開作動するので、地震その他により停電となった時は電磁弁が必然的に開作動するため、非常用酸素分散器から魚介類養殖槽に、酸素が自動的に供給される。 In the invention of (4) above, the solenoid valve for the emergency oxygen disperser is of a type that is closed when energized, and automatically opens when the power is cut off due to a disaster or the like, so that an earthquake occurs. When a power failure occurs due to other factors, the solenoid valve inevitably opens, so oxygen is automatically supplied from the emergency oxygen disperser to the fish and shellfish farm.
本発明の魚介類養殖槽の酸素コントロールシステムの概略図である。It is the schematic of the oxygen control system of the fish and shellfish culture tank of this invention.
　本発明の一実施形態を図面を参照して説明する。図１において、魚介類養殖槽１の横に、第１の送水管１Ａで連結された水処理槽２が配設され、その横に、第２の送水管２Ａで連結された酸素溶解装置３が配設されている。該水処理槽２は、除塵その他の処理がなされる。
　前記第２の送水管２Ａの中間には揚水ポンプ２Ｂが配設され、水処理槽２から汲上げる処理済水を、酸素溶解装置３に供給するようになっている。 An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a water treatment tank 2 connected by a first water pipe 1A is arranged next to a fish and shellfish farming tank 1, and an oxygen dissolving device 3 connected by a second water pipe 2A is arranged next to the water treatment tank 2. Are arranged. The water treatment tank 2 is subjected to dust removal and other treatments.
A pump 2B is arranged in the middle of the second water pipe 2A to supply the treated water pumped from the water treatment tank 2 to the oxygen dissolution device 3.
　前記酸素溶解装置３には、酸素タンク７から、第１の圧力調整弁７Ｂを経由して第１の自動開閉弁８及び側部に設けられたバイパス管９Ａに第１の手動開閉弁９が配設された酸素送管８Ａを介して酸素が供給される。該酸素送管８Ａには酸素流量計１０が配設されている。
　前記酸素溶解装置３からは、酸素水送管３Ａを介して前記魚介類養殖槽１に酸素溶解水が供給されるが、酸素水送管３Ａには、空気作動による第２の自動開閉弁４と、側部に設けたバイパス管５Ａに第２の手動開閉弁５が並列して配設されている。 In the oxygen dissolution device 3, a first manual on-off valve 9 is provided from an oxygen tank 7 to a first automatic on-off valve 8 and a bypass pipe 9A provided on a side portion via a first pressure adjusting valve 7B. Oxygen is supplied through the arranged oxygen transmission pipe 8A. An oxygen flow meter 10 is arranged in the oxygen transmission pipe 8A.
Oxygen-dissolved water is supplied from the oxygen-dissolving device 3 to the fish and shellfish aquaculture tank 1 via the oxygen-dissolved water pipe 3A, and the oxygen-dissolved water pipe 3A has a second automatic on-off valve 4 operated by air. A second manual on-off valve 5 is arranged in parallel with the bypass pipe 5A provided on the side portion.
　前記酸素溶解装置３には、シーケンサ式の自動制御装置（ＰＬＣ）６に電気的に接続されている水位センサ３Ｂ（又は圧力センサ）が配設されている。また前記魚介類養殖槽１内に、シーケンサ式の自動制御装置６から回線６Ｅが接結された溶存酸素センサ（Ｄ.Ｏ．センサ）１４が配設されており、前記魚介類養殖槽１内の酸素濃度を検知して、前記自
動制御装置６で予め設定されている数値データと対比して、関連機器の制御がなされる。 The oxygen dissolving device 3 is provided with a water level sensor 3B (or a pressure sensor) electrically connected to a sequencer type automatic control device (PLC) 6. Further, a dissolved oxygen sensor (DO sensor) 14 to which a line 6E is connected from a sequencer type automatic control device 6 is arranged in the fish and shellfish farming tank 1, and the inside of the fish and shellfish farming tank 1 is provided. The oxygen concentration of the seafood is detected, and the related equipment is controlled by comparing with the numerical data preset by the automatic control device 6.
　前記魚介類養殖槽１内には、非常時のための非常用酸素分散器１５が配設され、前記酸素タンク７から、酸素送管７Ａ、非常用酸素送管１１を介して酸素が供給される。
　前記酸素送管７Ａ、非常用酸素送管１１の途中には、第２の圧力調整弁７Ｃ、非常用自動開閉弁１１Ａと、側部に設けたバイパス管１２Ａに第３の手動開閉弁１２が配設されている。 An emergency oxygen disperser 15 for emergencies is arranged in the fish and shellfish farming tank 1, and oxygen is supplied from the oxygen tank 7 via an oxygen transmission pipe 7A and an emergency oxygen transmission pipe 11. NS.
A second pressure regulating valve 7C, an emergency automatic on-off valve 11A, and a third manual on-off valve 12 are provided on the side bypass pipe 12A in the middle of the oxygen sending pipe 7A and the emergency oxygen sending pipe 11. It is arranged.
　また途中に非常用酸素流量計１３が配設されており、前記非常用酸素分散器１５から魚介類養殖槽１に注入される酸素量が調整される。前記非常用酸素分散器１５は多数の細孔が形成された物等形状は任意である。 Further, an emergency oxygen flow meter 13 is arranged in the middle, and the amount of oxygen injected from the emergency oxygen disperser 15 into the fish and shellfish aquaculture tank 1 is adjusted. The emergency oxygen disperser 15 has an arbitrary shape such as an object in which a large number of pores are formed.
　前記酸素用の第１の自動開閉弁８、非常用自動開閉弁１１Ａは、前記自動制御装置６により制御される第１の電磁弁１６及び第２の電磁弁１７により作動され、該両電磁弁１６、１７に対する電源切替は、圧縮空気タンク１８から第２の送気管１８Ｂを経て送られる圧縮空気により作動されるが、前記両電磁弁１６、１７は、通電時は閉止されているタイプとし、電力遮断などの非常時には必然的に開作動する。 The first automatic on-off valve 8 for oxygen and the emergency automatic on-off valve 11A are operated by the first solenoid valve 16 and the second solenoid valve 17 controlled by the automatic control device 6, and both solenoid valves. The power supply switching for 16 and 17 is operated by the compressed air sent from the compressed air tank 18 via the second air supply pipe 18B, but both solenoid valves 16 and 17 are of a type that are closed when energized. It inevitably opens in an emergency such as power interruption.
　前記のような構成における本発明は、前記魚介類養殖槽１内に設置した前記溶存酸素センサ１４からの信号を、前記自動制御装置６に接続し、予め設定しておいた溶存酸素量になるように、前記酸素溶解装置３から前記酸素水送管３Ａを介して魚介類養殖槽１に注入される高濃度酸素水の流量を、前記第２の自動開閉弁４によって自動調整し、魚介類養殖槽１内の溶存酸素量を、予め設定した数値に保つ仕組みである。 In the present invention having the above configuration, the signal from the dissolved oxygen sensor 14 installed in the fish and shellfish farming tank 1 is connected to the automatic control device 6 to obtain a preset amount of dissolved oxygen. As described above, the flow rate of high-concentration oxygen water injected from the oxygen dissolving device 3 into the fish and shellfish farming tank 1 via the oxygen water feeding pipe 3A is automatically adjusted by the second automatic on-off valve 4, and the fish and shellfish This is a mechanism for keeping the amount of dissolved oxygen in the culture tank 1 at a preset value.
　機械類のトラブルや停電等の時には、予め設定しておいた溶存酸素量を下回ると自動で前記非常用自動作動弁１１Ａが開き、魚介類養殖槽１の底面に設置してある前記非常用酸素分散器１５から酸素水が自動的に放出され、魚介類養殖槽１の溶存酸素を速やかに高めるように設定されている。 In the event of mechanical trouble or power failure, the emergency automatic operating valve 11A automatically opens when the amount of dissolved oxygen falls below a preset amount, and the emergency oxygen installed on the bottom surface of the fish and shellfish aquaculture tank 1. Oxygen water is automatically released from the disperser 15, and the dissolved oxygen in the fish and shellfish aquaculture tank 1 is set to be rapidly increased.
　前記自動制御装置６は、通常飼育時の溶存酸素量を、任意の数値に設定することができる。すなわち、自然界ではあり得ない高い酸素溶存状態を作り出すことができるので、１ｍ３当りの高密度飼育による魚介類の養殖をすることができて、営業上の高効率化を維持することができる。 The automatic control device 6 can set the amount of dissolved oxygen during normal breeding to an arbitrary value. That is, it is possible to it is possible to produce a high oxygen dissolved state improbable in nature, it can be a farming fish by dense rearing per 1 m 3, maintaining the efficiency of the sales.
　またトラブル等で十分な酸素量が確保できない場合、前記非常用酸素分散器１５から魚介類養殖槽１に酸素を注入させる指示を出す下限値設定や、また逆に溶存酸素量が高過ぎる場合には、アラーム等を発する上限値など、それぞれ任意な数値を前記自動制御装置６に設定することができる。 If a sufficient amount of oxygen cannot be secured due to trouble or the like, a lower limit value is set to instruct the fish and shellfish aquaculture tank 1 to inject oxygen from the emergency oxygen disperser 15, or conversely, if the amount of dissolved oxygen is too high. Can set an arbitrary numerical value such as an upper limit value for issuing an alarm or the like in the automatic control device 6.
　溶存酸素量が多すぎる場合は起こりにくいが、もし多過ぎることが前記溶存酸素センサ１４で検知された時は、水が酸素の過飽和状態となり、魚体に影響を及ぼすため、前記自
動制御装置６により、アラーム等警報を発し、第１の自動開閉弁８及び第２の自動開閉弁４が自動的に閉作動をして酸素流入を抑制する。 If the amount of dissolved oxygen is too large, it is unlikely to occur, but if it is detected by the dissolved oxygen sensor 14, the water becomes supersaturated with oxygen and affects the fish body. , An alarm or the like is issued, and the first automatic on-off valve 8 and the second automatic on-off valve 4 are automatically closed to suppress oxygen inflow.
　前記魚介類養殖槽１内の溶存酸素量のコントロールは、魚介類養殖槽１もしくは前記水処理槽２から、揚水ポンプ２Ｂ等で接続された前記酸素溶解装置３を経由して作り出された高濃度酸素水を、魚介類養殖槽１へ注水する流量によって調整するが、溶存酸素量を維持できる大まかな流量は、前記第２の手動開閉弁５で大まかに流量調整をしておく。 The amount of dissolved oxygen in the fish and shellfish farming tank 1 is controlled by a high concentration produced from the fish and shellfish farming tank 1 or the water treatment tank 2 via the oxygen dissolving device 3 connected by a pump 2B or the like. Oxygen water is adjusted by the flow rate of pouring water into the fish and shellfish culture tank 1, but the rough flow rate at which the dissolved oxygen amount can be maintained is roughly adjusted by the second manual on-off valve 5.
　魚介類養殖槽１における溶存酸素値が、予め設定した通常値を下回った場合には、前記第２の自動開閉弁４の自動開閉の調整によって、高濃度酸素水の前記酸素水送管３Ａにおける流量を瞬時に増加させ、魚介類養殖槽１内の溶存酸素値を上昇させる。 When the dissolved oxygen value in the fish and shellfish aquaculture tank 1 is lower than the preset normal value, the oxygen water transmission pipe 3A of the high-concentration oxygen water is adjusted by adjusting the automatic opening and closing of the second automatic on-off valve 4. The flow rate is instantly increased to raise the dissolved oxygen level in the fish and shellfish aquaculture tank 1.
　前記第１の自動開閉弁８及び第２の自動開閉弁４、前記非常用自動作動弁１１Ａは、コンプレッサで作られ、前記圧縮空気タンク１８に溜められている圧縮空気により、停電時でも暫くの間は稼動することができるために、空気作動弁とするが、電磁弁でもかまわない。 The first automatic on-off valve 8, the second automatic on-off valve 4, and the emergency automatic operation valve 11A are made by a compressor and are stored in the compressed air tank 18 for a while even in the event of a power failure. Since it can operate during the period, it is an air-operated valve, but an electromagnetic valve may also be used.
　前記酸素溶解装置３は、オキシジョンコーンを基本とし、本体に設置した水位センサ３Ｂ（もしくは圧力センサ）により、コーン内に水位を最適な高さに維持できるよう、前記水位センサ３Ｂからの信号はシーケンサ式の自動制御装置６に接続され、予め設定しておいたオキシジョンコーン内の水位になるよう、酸素の流量や前記揚水ポンプ２Ｂの出力を自動制御し、最適な酸素溶解効率を維持できる。 The oxygen dissolving device 3 is based on an oxygen cone, and the signal from the water level sensor 3B is transmitted so that the water level can be maintained at the optimum height in the cone by the water level sensor 3B (or pressure sensor) installed in the main body. It is connected to the sequencer type automatic control device 6 and can automatically control the flow rate of oxygen and the output of the pump 2B so that the water level in the oxygen cone is set in advance, and can maintain the optimum oxygen dissolution efficiency. ..
　オキシジョンコーンに送られる酸素流量の調整は、前記酸素溶解装置３における水位センサ３Ｂ（もしくは圧力センサ）からの信号を、前記自動制御装置６が受け、その開閉指示の信号を前記第１の電磁弁１６に送り、該第１の電磁弁１６の開閉により、圧縮空気が前記第１の自動開閉弁８の開閉をおこなう。 To adjust the oxygen flow rate sent to the oxygen cone, the automatic control device 6 receives a signal from the water level sensor 3B (or pressure sensor) in the oxygen dissolving device 3, and the opening / closing instruction signal is received by the first solenoid. Compressed air opens and closes the first automatic on-off valve 8 by sending to the valve 16 and opening and closing the first solenoid valve 16.
　前記第１の手動開閉弁９は、前記第１の自動開閉弁８が故障等した場合に、手動で操作し、前記酸素タンク７から前記酸素溶解装置３に酸素を送るためのものである。オキシジョンコーンへ送る酸素の流量は、前記酸素流量計１０及び第１の圧力調整弁７Ｂで調整することができる。 The first manual on-off valve 9 is for manually operating and sending oxygen from the oxygen tank 7 to the oxygen dissolving device 3 when the first automatic on-off valve 8 fails or the like. The flow rate of oxygen sent to the oxygen cone can be adjusted by the oxygen flow meter 10 and the first pressure adjusting valve 7B.
　前記非常用酸素分散器１５への酸素の供給は、前記溶存酸素センサ１４からの信号により、予め前記自動制御装置６に設定しておいた通常値を下回った場合、前記自動制御装置６から第２の電磁弁１７に「開」の信号が送られ、前記非常用自動開閉弁１１Ａを開く。 When the supply of oxygen to the emergency oxygen disperser 15 falls below the normal value set in advance in the automatic control device 6 by the signal from the dissolved oxygen sensor 14, the automatic control device 6 to the first An "open" signal is sent to the solenoid valve 17 of No. 2, and the emergency automatic on-off valve 11A is opened.
　また、地震その他の事故等により停電となった時には、前記非常用酸素分散器１５用の前記第２の電磁弁１７は、通電時に閉止されるタイプが使用されており、災害時等で電力が遮断された際には自動的に開作動して、前記圧縮空気タンク１８から圧縮空気が前記非常用自動開閉弁１１Ａに送られ、その圧縮空気の作動により弁が開かれて、酸素は前記非常用酸素分散器１５から魚介類養殖槽１の水中に自動的に注入される。 Further, in the event of a power failure due to an earthquake or other accident, the second solenoid valve 17 for the emergency oxygen disperser 15 is of a type that is closed when energized, so that electric power can be generated in the event of a disaster or the like. When it is shut off, it automatically opens, and compressed air is sent from the compressed air tank 18 to the emergency automatic on-off valve 11A, and the valve is opened by the operation of the compressed air, and oxygen is released from the emergency. It is automatically injected into the water of the fish and shellfish culture tank 1 from the oxygen disperser 15.
　前記第３の手動開閉弁１２は、前記非常用自動開閉弁１１Ａが故障等した場合に、手動で弁を開いて酸素を流すためのものである。前記非常用酸素分散器１５に送り出す酸素量は、前記非常用酸素流量計１３及び前記第２の圧力調整弁７Ｃで調整することができる。 The third manual on-off valve 12 is for manually opening the valve to allow oxygen to flow when the emergency automatic on-off valve 11A fails or the like. The amount of oxygen delivered to the emergency oxygen disperser 15 can be adjusted by the emergency oxygen flow meter 13 and the second pressure adjusting valve 7C.
　前記酸素溶解装置３用及び前記非常用酸素分散器１５用ともに、第１の電磁弁１６、第２の電磁弁１７の開閉による圧縮空気で空気作動による前記第１の自動開閉弁８、前記非常用自動開閉弁１１Ａをコントロールしているが、空気作動による自動弁だけでなく、電気信号による開閉を行う電磁弁に代替することもできる。
　前記酸素溶解装置３もlow head oxygenatorやフロートミキシングタイプ、微細気泡発生装置など様々な機器の際でも代替可能である。 For both the oxygen dissolving device 3 and the emergency oxygen disperser 15, the first automatic on-off valve 8 and the emergency are operated by air operation with compressed air by opening and closing the first solenoid valve 16 and the second solenoid valve 17. Although the automatic on-off valve 11A is controlled, it can be replaced with a solenoid valve that opens and closes by an electric signal as well as an automatic valve operated by air.
The oxygen dissolving device 3 can also be replaced with various devices such as a low head oxygenator, a float mixing type, and a fine bubble generator.
　本発明の魚介類養殖槽の酸素コントロールシステムにおいては、魚介類養殖において重用な生育上の指標である溶存酸素濃度を、任意の値に自動で制御することができる。
　そのため自然界では過去になかなかあり得なかった高い溶存酸素量の下で、水１ｍ３当りの、魚数の常時高密度飼育を行う事ができるようになり、狭い土地を利用した小規模な養殖事業でも、高い養殖効率を上げることが可能となった。 In the oxygen control system of the fish and shellfish farming tank of the present invention, the dissolved oxygen concentration, which is an important growth index in fish and shellfish farming, can be automatically controlled to an arbitrary value.
As a result, it has become possible to constantly breed high-density fish per 1 m 3 of water under a high amount of dissolved oxygen, which has never been possible in the natural world, and a small-scale aquaculture business using a small land. However, it has become possible to increase the efficiency of aquaculture.
　また優れた生長率や増肉係数などを維持することができ、給餌等により急激に前記魚介類養殖槽１の溶存酸素量が低下するような状況も生じにくく、安定的な養殖環境を維持することができる。 In addition, it is possible to maintain an excellent growth rate and thickening coefficient, and it is unlikely that the amount of dissolved oxygen in the fish and shellfish aquaculture tank 1 will suddenly decrease due to feeding or the like, and a stable aquaculture environment will be maintained. be able to.
　また、機器のトラブルや自然災害等の非常時には、前記非常用酸素分散器１５により、自動で酸素が魚介類養殖槽１に注入されるため、トラブルなどにより魚の斃死事故を防止することができる。 Further, in the event of an emergency such as a device trouble or a natural disaster, oxygen is automatically injected into the fish and shellfish aquaculture tank 1 by the emergency oxygen disperser 15, so that it is possible to prevent a fish death accident due to a trouble or the like.
　本発明は、１ｍ３当りの高い飼育密度を維持することができるので、狭い土地における小規模養殖でも、効率の良い魚介類の養殖をすることができ、優れた生長率や増肉係数を維持できるので、水産資源の少ない地域においての水産業に広く利用される。 Since the present invention can maintain a high breeding density per 1 m 3 , it is possible to efficiently cultivate fish and shellfish even in small-scale aquaculture in a narrow land, and maintain an excellent growth rate and thickening coefficient. Because it can be used, it is widely used in the fishery industry in areas where fishery resources are scarce.
　１．魚介類養殖槽
　１Ａ．第１の送水管
　２．水処理槽　
　２Ａ．第２の送水管
　２Ｂ．揚水ポンプ
　３．酸素溶解装置
　３Ａ．酸素水送管
　３Ｂ．水位センサ（圧力センサ）
　４．第２の自動開閉弁
　５．第２の手動開閉弁
　５Ａ．バイパス管
　６．自動制御装置
　６Ａ、６Ｂ、６Ｃ、６Ｄ、６Ｅ．回線
　７．酸素タンク
　７Ａ．酸素送管
　７Ｂ．第１の圧力調整弁
　７Ｃ．第２の圧力調整弁
　８．第１の自動開閉弁
　８Ａ．酸素送管
　９．第１の手動開閉弁
　９Ａ．バイパス管
　１０．酸素流量計
　１１．非常用酸素送管
　１１Ａ．非常用自動開閉弁
　１２．第３の手動開閉弁　
　１２Ａ．バイパス管
　１３．非常用酸素流量計
　１４．溶存酸素センサ
　１５．非常用酸素分散器
　１６．第１の電磁弁
　１７．第２の電磁弁
　１８．圧縮空気タンク
　１８Ａ．第１の送気管
　１８Ｂ．第２の送気管 1. 1. Fish and shellfish farming tank 1A. First water pipe 2. Water treatment tank
2A. Second water pipe 2B. Pumping pump 3. Oxygen dissolution device 3A. Oxygen water supply pipe 3B. Water level sensor (pressure sensor)
4. Second automatic on-off valve 5. Second manual on-off valve 5A. Bypass pipe 6. Automatic control devices 6A, 6B, 6C, 6D, 6E. Line 7. Oxygen tank 7A. Oxygen pipe 7B. First pressure regulating valve 7C. Second pressure control valve 8. First automatic on-off valve 8A. Oxygen pipe 9. First manual on-off valve 9A. Bypass pipe 10. Oxygen flow meter 11. Emergency oxygen pipe 11A. Emergency automatic on-off valve 12. Third manual on-off valve
12A. Bypass pipe 13. Emergency oxygen flow meter 14. Dissolved oxygen sensor 15. Emergency oxygen disperser 16. First solenoid valve 17. Second solenoid valve 18. Compressed air tank 18A. First air supply tube 18B. Second air supply tube

Claims (4)

  1. 　溶存酸素センサと非常用酸素分散器とを備えた魚介類養殖槽に、水位センサを備えた酸素溶解装置を第１の送水管及び第２の送水管を介して連結し、前記酸素溶解装置と魚介類養殖槽を、第２の自動開閉弁を備えた酸素水送管で連結し、酸素タンクと前記酸素溶解装置とを、第１の圧力調整弁、第１の自動開閉弁８と酸素流量計を備えた酸素送管で連結し前記酸素タンクと前記非常用酸素分散器とを、第２の圧力調整弁、非常用自動開閉弁と非常用酸素流量計を備えた非常用酸素送管で連結し、圧縮空気タンクから、前記酸素送管における前記第１の自動開閉弁に至る第２の送気管に第１の電磁弁を配設するとともに、該第１の電磁弁を自動制御装置に回路で電気的に接続し、また前記圧縮空気タンクから前記非常用酸素送管における前記非常用自動開閉弁までを結ぶ、第２の送気管の分岐部に第２の電磁弁を配設するとともに、該第２の電磁弁を前記自動制御装置に回路で電気的に接続し、前記第１の自動開閉弁、第２の自動開閉弁及び非常用自動開閉弁を、前記圧縮空気タンクにおける圧縮空気により開閉作動をさせるようにし、前記自動制御装置に制御用の数値データを予め設定しておき、前記酸素溶解装置から高濃度酸素水の注水流量を、前記酸素水送管の前記第２の自動開閉弁の開閉により調節して前記魚介類養殖槽の酸素濃度を調整し、溶存酸素量が下限値と計測された時は、前記非常用酸素送管の前記非常用自動開閉弁を自動的に解放して、前記非常用酸素分散器から酸素を前記魚介類養殖槽に注入するようになっていることを特徴とする魚介類養殖槽の酸素コントロールシステム。 An oxygen dissolving device equipped with a water level sensor is connected to a fish and shellfish farm equipped with a dissolved oxygen sensor and an emergency oxygen disperser via a first water supply pipe and a second water supply pipe, and is connected to the oxygen dissolving device. The fish and shellfish farming tank is connected by an oxygen water transmission pipe provided with a second automatic on-off valve, and the oxygen tank and the oxygen dissolving device are connected to the first pressure regulating valve, the first automatic on-off valve 8 and the oxygen flow rate. The oxygen tank and the emergency oxygen disperser are connected by an oxygen transmission pipe equipped with a meter, and the emergency oxygen transmission pipe equipped with a second pressure regulating valve, an emergency automatic on-off valve and an emergency oxygen flow meter is used. A first electromagnetic valve is arranged in a second air supply pipe that is connected and reaches the first automatic on-off valve in the oxygen transmission pipe from the compressed air tank, and the first electromagnetic valve is used as an automatic control device. A second electromagnetic valve is provided at the branch of the second air supply pipe, which is electrically connected by a circuit and connects the compressed air tank to the emergency automatic on-off valve in the emergency oxygen supply pipe. The second electromagnetic valve is electrically connected to the automatic control device by a circuit, and the first automatic on-off valve, the second automatic on-off valve and the emergency automatic on-off valve are connected to the compressed air in the compressed air tank. The opening and closing operation is performed by The oxygen concentration in the fish and shellfish farm is adjusted by opening and closing the on-off valve, and when the dissolved oxygen amount is measured as the lower limit, the emergency automatic on-off valve of the emergency oxygen transmission pipe is automatically opened. An oxygen control system for a fish and shellfish farm, which is released to inject oxygen from the emergency oxygen disperser into the fish and shellfish farm.
  2. 　前記魚介類養殖槽における前記第１の自動開閉弁、第２の自動開閉弁及び非常用自動開閉弁のそれぞれの側部には、それぞれバイパス管が設けられ、該各バイパス管にそれぞれ手動開閉弁が配設されて、溶存酸素量を維持できる高濃度酸素水の大まかな流量は、前記手動開閉弁の開閉により調整することを特徴とする請求項１に記載の魚介類養殖槽の酸素コントロールシステム。 Bypass pipes are provided on the sides of the first automatic on-off valve, the second automatic on-off valve, and the emergency automatic on-off valve in the fish and shellfish farming tank, and each of the bypass pipes is provided with a manual on-off valve. The oxygen control system for a fish and shellfish farm according to claim 1, wherein the rough flow rate of high-concentration oxygen water capable of maintaining the dissolved oxygen amount is adjusted by opening and closing the manual on-off valve. ..
  3. 　前記魚介類養殖槽における溶存酸素センサが、酸素濃度上限値を計測した時は、前記酸素送管における前記第１の自動開閉弁を前記自動制御装置により自動制御して、前記酸素溶解装置への酸素流入量を調整することを特徴とする請求項１又は２に記載の魚介類養殖槽の酸素コントロールシステム。 When the dissolved oxygen sensor in the fish and shellfish farm measures the oxygen concentration upper limit value, the first automatic on-off valve in the oxygen transmission pipe is automatically controlled by the automatic control device to the oxygen dissolving device. The oxygen control system for a fish and shellfish farm according to claim 1 or 2, wherein the oxygen inflow is adjusted.
  4. 　前記魚介類養殖槽における前記非常用酸素分散器用の第２の電磁弁は、通電時に閉止されるタイプとしてあり、災害時などで電力が遮断された際は自動的に開作動して、前記圧縮空気タンクから圧縮空気が前記非常用酸素送管における非常用自動開閉弁に送られ、その圧縮空気の作動により前記非常用自動開閉弁が開かれて、酸素が前記非常用酸素分散器から前記魚介類養殖槽の水中に注入されるようになっていることを特徴とする請求項１～３の何れかに記載の魚介類養殖槽の酸素コントロールシステム。 The second solenoid valve for the emergency oxygen disperser in the fish and shellfish farming tank is of a type that is closed when energized, and automatically opens and operates when the power is cut off in the event of a disaster or the like to compress the air. Compressed air is sent from the air tank to the emergency automatic on-off valve in the emergency oxygen transmission pipe, and the operation of the compressed air opens the emergency automatic on-off valve, and oxygen is discharged from the emergency oxygen disperser to the seafood. The oxygen control system for a fish and shellfish farm according to any one of claims 1 to 3, wherein the oxygen control system is injected into the water of the fish farm.
PCT/JP2021/009668 2020-03-12 2021-03-10 Oxygen control system for fish and shellfish culture tank WO2021182547A1 (en)

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WO2019140523A1 (en) * 2018-01-16 2019-07-25 Gis Gas Infusion Systems Inc. A process for controlling the concentration of dissolved oxygen within a specified open body of water
JP2019213460A (en) * 2018-06-11 2019-12-19 三相電機株式会社 Growing device for aquatic organisms
WO2020009073A1 (en) * 2018-07-04 2020-01-09 充日児 ▲高▼味 Method for modifying aquaculture tank, and aquaculture method

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