JP2006180829A - Apparatus for receiving fish or shellfish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for receiving fishes or shellfishes, which can maintain a dissolved oxygen content within a prescribed range. <P>SOLUTION: This apparatus 1 for receiving the fishes or shellfishes comprises an aquarium 10 in which water is stored for the inhabitation of the fishes or shellfishes such as fishes, shellfishes, squids, octopi, lobsters or crabs, a filtration mechanism 11 for filtering water, an outflow pipe 12 for outward draining water stored in the aquarium 10 to flow the water in the filtration mechanism 11, and a water-supplying mechanism 13 for producing oxygen-dissolved water to supply the water into the aquarium 10. The water-supplying mechanism 13 comprises an oxygen-dissolving device 20 for dissolving oxygen in drainage filtered with the filtration mechanism 11 to produce the water-dissolved water, a storage tank 14 for storing the water-dissolved water, a supply pump 15 for supplying the oxygen-dissolved water in the storage tank 14 into the aquarium 10, a detection sensor 16 for detecting the dissolved oxygen content of the stored water in the aquarium 10, and a controller 17 for controlling the operations of the supply pump 15 on the basis of the dissolved oxygen content at 5.0 to 10.0 mg/L. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fish and shellfish storage device that includes a storage container for storing water and inhabiting seafood, and stores the fish and shellfish in a live state in the storage container.

  Seafood such as fish, shellfish, bandits, sea bream, shrimp and sea bream are cultivated in a container such as an aquarium, transported in a container, or bred for ornamental or edible purposes. However, the stored water stored in this container is normally not replaced by new water supplied from the outside into the container, and is in a closed state. As the oxygen in the stored water is consumed by the activity, the amount of dissolved oxygen gradually decreases. And if the amount of dissolved oxygen is lower than a predetermined amount, fish and shellfish will die, and various devices have been proposed in the past to prevent such problems.

  As one of them, for example, an oxygen-enriched water purifier disclosed in Japanese Patent Application Laid-Open No. 2003-333957 is known, and this oxygen-enriched water purifier is partitioned by a partition plate into a filtration tank, pressurized A tank body and a water tank are formed, and a container body into which water in a container in which fish and shellfish are stored flows, a bubble generator disposed at the bottom of the pressurized tank, and a supply pump for supplying air to the bubble generator And a water pump for supplying water in the water storage tank into the storage container.

  A filter medium is disposed in the filter tank, and the water in the container is configured to flow from the upper side, and the inflowed water is filtered by the filter medium toward the filter tank bottom side. After flowing toward, it flows into the pressure tank. In the pressurization tank, an air layer is formed on the upper side (the upper part in the pressurization tank) of water flowing in from the filtration tank by a large number of bubbles (air) supplied from the supply pump and blown out from the bubble generator. The water in the pressurizing tank flows into the water storage tank by the air pressure of the air layer. And the water which flowed in in the water storage tank is supplied in a storage container by a water pump.

  Thus, in this oxygen-enriched water purifier, the water in the container is filtered and purified by flowing in the filtration tank, and in contact with the bubbles blown out from the bubble generator in the pressure tank. The oxygen in the bubbles is dissolved in the water to increase the amount of dissolved oxygen. The water thus purified and dissolved in oxygen flows into the water storage tank and is stored in the storage container by the water pump. To reflux. Thereby, the oxygen dissolved amount of the water in a storage container is maintained substantially constant.

JP 2003-333957 A

  However, in the above conventional oxygen-enriched water purification apparatus configured to dissolve oxygen by making the air supplied from the supply pump into a large number of bubbles and blowing it out in water, a large amount of oxygen can be dissolved. However, since there is a certain limit to the amount of dissolved oxygen that can be increased, for example, when seafood is contained in an overcrowded container, the amount of dissolved oxygen in the container There was a problem that the amount of dissolved oxygen necessary for the fish and shellfish to live could not be maintained as it gradually decreased over time.

  This invention is made | formed in view of the above situation, Comprising: It aims at provision of the accommodation apparatus of the seafood which can maintain oxygen dissolved-in amount within the predetermined range.

To achieve the above object, the present invention provides:
A storage device for storing seafood in a live state,
A storage container for storing water and inhabiting the seafood;
A generating means for generating oxygen-dissolved water in which oxygen is dissolved in water, an oxygen-dissolved water supply means for supplying oxygen-dissolved water generated by the generating means into the storage container, and stored in the storage container Detecting means for detecting the dissolved oxygen amount of the stored water, and controlling the operation of the oxygen-dissolved water supply means based on the dissolved oxygen amount detected by the detecting means to store the stored water stored in the storage container A water supply mechanism comprising a control means for setting the dissolved oxygen amount to 5.0 mg / l or more and 10.0 mg / l or less;
A fish and shellfish storage device comprising a discharge mechanism for discharging stored water in the storage container to the outside.

  According to this invention, the operation of the oxygen-dissolved water supply means is controlled by the control means on the basis of the oxygen dissolved amount (mg / l) of the stored water stored in the container, which is detected by the detection means of the water supply mechanism. The supply amount of oxygen-dissolved water generated by the generation means is controlled and adjusted. Further, part of the stored water in the storage container is discharged to the outside by a discharge mechanism, and is maintained at a constant amount of water. Thus, even if the dissolved oxygen in the stored water is consumed by the activity of seafood, the dissolved oxygen in the stored water is increased and controlled to 5.0 mg / l or more and 10.0 mg / l or less.

  Thus, according to the fish and shellfish storage device according to the present invention, oxygen dissolved water is supplied into the storage container, and the supply amount is adjusted to adjust oxygen of the stored water stored in the storage container. Since the dissolved amount can be maintained within the predetermined range, for example, even if fish and shellfish are housed in the container, the oxygen dissolved amount of the stored water gradually decreases with time, and the fish and shellfish It can be effectively prevented that the amount is lower than the amount necessary to live.

  In addition, the amount of dissolved oxygen can be adjusted to the environment when seafood lived in the sea, rivers, lakes, etc. It has been empirically confirmed that if the amount of dissolved oxygen is too large, the environment changes drastically and the environment cannot be adapted to the environment after the change, and the seafood will die. By keeping it inside, such a problem can be effectively prevented.

  In addition, the said production | generation means may be comprised so that oxygen may be dissolved in the waste_water | drain discharged | emitted by the said discharge mechanism, and the said oxygen dissolved water may be produced | generated. When oxygen-dissolved water is supplied into the storage container as described above, the amount of stored water in the storage container is larger than the amount of oxygen-dissolved water supplied. It cannot be increased efficiently. Therefore, when water is circulated between the storage container and the water supply mechanism, the amount of oxygen dissolved in the stored water in the storage container can be increased efficiently, and water can be used efficiently. .

  The generating means includes a sealed container body and a supply pipe connected to the inside of the sealed container body, and supplies oxygen gas into the sealed container body through the supply pipe so that the inside of the sealed container body has an atmospheric pressure or higher. An oxygen supply means for providing an oxygen gas atmosphere, and a first water supply pipe having one end connected to the inside of the sealed container body and arranged vertically in the sealed container body, and having a discharge port formed at an upper end surface thereof. A water supply means for discharging water from the discharge port of the water supply pipe toward the ceiling of the sealed container body; and an oxygen-dissolved water stored at the bottom of the sealed container body connected to the outside of the sealed container body A second water supply pipe to be supplied to the inside, a first flow restricting member projecting inward from the inner surface of the hermetic container body, and / or a plate-like second current control projecting outward from one outer peripheral surface of the first water supply pipe. A member, and from the discharge port toward the ceiling of the sealed container body In addition to discharging water, water discharged from the discharge port and flowing along the inner surface of the hermetic container body and / or the outer peripheral surface of the first water supply pipe is allowed to flow into the first flow restricting member and / or the first (2) The oxygen-dissolved water is generated by bringing water and oxygen gas into gas-liquid contact within the sealed container body by flowing down from the protruding end of the flow restricting member into the inner space of the sealed container body. The oxygen-dissolved water supply means may be configured to supply oxygen-dissolved water supplied from the second water supply pipe into the storage container. The water supply means is configured to discharge water supplied from the outside as appropriate and waste water discharged by the discharge mechanism from the discharge port of the first water supply pipe.

  In this way, first, oxygen gas is supplied into the sealed container body through the supply pipe by the oxygen supply means, and after the inside of the sealed container body is brought into an oxygen gas atmosphere at atmospheric pressure or higher, the water supply means is used. Then, water (water before oxygen dissolution) is supplied into the first water supply pipe, and the supplied water flows through the first water supply pipe and is then discharged from the discharge port into the sealed container body.

  The discharged water is spouted in a fountain shape (radial around the discharge port) toward the ceiling, collides with the inner surface of the sealed container body such as the ceiling surface and inner peripheral surface, and flows along the inner surface. Water that bounces and falls in the inner space of the sealed container body or flows along the outer peripheral surface of the first water supply pipe, and then flows along the inner surface of the sealed container body or the outer peripheral surface of the first water supply pipe. The flow is controlled by each flow control member, and flows down into the inner space of the sealed container body from the protruding end of each flow control member in the form of a thin film and a waterfall.

  And the water which flowed in the airtight container body is stored in the bottom part of the airtight container body, but the oxygen which contacted the said water melt | dissolves in the flow process in such oxygen gas atmosphere, and oxygen dissolved water is produced | generated. . The oxygen-dissolved water stored at the bottom of the hermetic container body is supplied from the second water supply pipe to the outside of the hermetic container body by the oxygen gas pressure inside the hermetic container body, and the supplied water is stored in the container by the oxygen-dissolved water supply means. To be supplied.

  Thus, in this generating means, water is ejected radially from the discharge port to increase the contact area with the oxygen gas of the water and flow along the inner surface of the sealed container body and the outer peripheral surface of the first water supply pipe. The flow of water to be controlled by the first flow control member and the second flow control member to flow down into the inner space of the sealed container body from the protruding end of the flow control member in a thin film shape and a waterfall shape, Further, since the oxygen gas pressure in the sealed container body is further increased, more oxygen can be efficiently dissolved in the water. Then, by supplying the oxygen-dissolved water having a high oxygen-dissolved amount thus generated into the storage container, the oxygen-dissolved amount of the stored water in the storage container is efficiently increased to the predetermined oxygen-dissolved amount. be able to.

  The seafood container further includes a filtration mechanism for filtering the wastewater discharged by the discharge mechanism, and the water supply means of the generating means discharges the wastewater filtered by the filtration mechanism from the discharge port. In this way, the filtration mechanism can remove the excrement of fish and seafood and the food that the seafood did not eat from the waste water discharged by the discharge mechanism. In addition, it is possible to effectively prevent inconveniences such as clogging of the first water supply pipe and the second water supply pipe due to the excrement and uneaten food, and it is possible to purify the water recirculated into the storage container.

  As described above, according to the seafood container according to the present invention, the oxygen-dissolved water is supplied into the storage container, and the number of seafood stored in the storage container is adjusted by adjusting the supply amount. Regardless of the amount of stored water stored in the container, the oxygen dissolved amount of the stored water can be effectively prevented from falling below the amount necessary for fish and shellfish to live. In terms of dissolved amount, it can be adapted to the environment when seafood lived in the sea, rivers, lakes, etc.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing a schematic configuration of a seafood container according to an embodiment of the present invention. 2 is a cross-sectional view showing a schematic configuration of the oxygen dissolving apparatus according to the present embodiment, FIG. 3 is a cross-sectional view in the direction of arrow AA in FIG. 2, and FIG. 5 is a cross-sectional view in the direction of arrows BB in FIG. 5, FIG. 5 is a cross-sectional view in the direction of arrows CC in FIG. 2, and FIG. 6 is for explaining the flow of water in the oxygen dissolving apparatus in FIG. It is explanatory drawing of.

  As shown in FIG. 1, the fish and shellfish storage device 1 of the present example includes a water tank (housing container) 10 for storing water and inhabiting fish and shellfish S such as fish, shellfish, bandits, sea bream, shrimp and sea bream. A filtration mechanism 11 that filters water, an outflow pipe (discharge mechanism) 12 that discharges the stored water stored in the water tank 10 to the outside and flows into the filtration mechanism 11, and water (drainage) filtered by the filtration mechanism 11 ) Is dissolved in oxygen to generate oxygen-dissolved water, and the water supply mechanism 13 for supplying (returning) the generated oxygen-dissolved water into the water tank 10 is provided.

  The seafood storage device 1 can be used, for example, as a device for cultivating or rearing the seafood S or as a device for transporting the seafood S by car or ship. It is not limited to.

  The filtering mechanism 11 includes a filtering material (not shown) inside, and the wastewater discharged from the water tank 10 through the outflow pipe 12 and flowing into the inside is flowed while being filtered by the filtering material. The excrement of S and the food that the seafood S did not eat are removed.

  The water supply mechanism 13 takes the wastewater filtered by the filtration mechanism 11, dissolves oxygen in the drained wastewater to generate oxygen-dissolved water, and oxygen generated by the oxygen dissolver 20. A storage tank 14 in which dissolved water is stored, a supply pump 15 that supplies oxygen-dissolved water stored in the storage tank 14 into the water tank 10, and an oxygen-dissolved amount (mg / kg) of the stored water stored in the water tank 10. 1), and a control device 17 for controlling the operation of the supply pump 15 based on the amount of dissolved oxygen detected by the detection sensor 16.

  As shown in FIGS. 1 to 5, the oxygen dissolving device 20 is formed in a cylindrical shape and has a sealed container body 21, an oxygen supply unit 22 that supplies oxygen gas into the container body 21, and a container body. A pressure detector (not shown) for detecting the oxygen gas pressure inside the container 21, a water supply unit 23 for supplying the drained water after filtration into the container body 21, and a storage tank 14 for storing the oxygen-dissolved water inside the container body 21. A water supply pipe (third water supply pipe) 24 to be supplied inside, first, second and third flow control plates 25, 26, 27 arranged at an upper position in the container body 21, and a water level in the container body 21 And a water level detecting unit 28 for detecting.

  The ceiling portion of the container body 21 is formed in a spherical curved surface protruding outward, and an exhaust pipe 29 that connects the inside of the container body 21 to the outside is connected to the ceiling section. 29 is provided with an exhaust valve 29a that is normally controlled to be closed. Further, the lower surface of the container body 21 is appropriately placed and supported on the mounting member 30.

  The oxygen supply unit 22 includes an oxygen supply source 22a for supplying oxygen gas, a supply pipe 22b having one end connected to the oxygen supply source 22a and the other end connected to a first water supply pipe 23a described later, and a supply pipe 22b. A supply valve 22c that adjusts the flow rate of oxygen gas supplied from the oxygen supply source 22a into the container body 21, and supplies oxygen gas into the container body 21 through the supply pipe 22b and the first water supply pipe 23a. The interior of the container body 21 is set to an oxygen gas atmosphere at atmospheric pressure or higher. The opening of the supply valve 22c is adjusted so that the pressure value detected by the pressure detector (not shown) and the water level detected by the water level detector 28 are substantially constant.

  The water supply unit 23 has an axial line provided in the vertical direction, and is disposed at a coaxial position with the container body 21. An upper end surface of the water supply section 23 is spaced from the ceiling surface of the container body 21 by a predetermined distance and is on the upper side of the container body 21. The first water supply pipe 23a to be arranged and one end side penetrates into the container body 21 from the outer peripheral surface of the container body 21, and is connected between the upper end portion and the lower end portion of the first water supply pipe 23a and the other end A second water supply pipe 23b whose side is connected to the filtration mechanism 11, a pump device 23e connected to the second water supply pipe 23b, and supplying the drained water after filtration into the container body 21 through the water supply pipes 23b and 23a, etc. Prepare.

  The first water supply pipe 23a is provided with a discharge port 23c that opens at an upper end surface thereof and discharges waste water toward the ceiling. The inner diameter of the discharge port 23c is the other part of the first water supply pipe 23a. It has a smaller diameter than (inner diameter D1). The other end of the supply pipe 22b is connected to the lower end of the first water supply pipe 23a, and the lower end surface of the first water supply pipe 23a is appropriately sealed with a sealing member 23d.

  The second water supply pipe 23b is provided with a check valve (not shown), and the check valve (not shown) allows the wastewater supplied into the container body 21 to flow backward or to be supplied from the supply pipe 22b. The oxygen gas is prevented from leaking outside.

  One end side of the third water supply pipe 24 penetrates into the inside from the bottom outer peripheral surface of the container body 21, and the other end side is connected to the storage tank 14, and the oxygen-dissolved water stored in the bottom portion inside the container body 21. Is supplied into the storage tank 14 by the oxygen gas pressure inside the container body 21. The third water supply pipe 24 has an inner diameter D2 that is the same as or smaller than the inner diameter D1 of the first and second water supply pipes 23a and 23b. Is provided with a suction port 24a for supplying the gas into the storage tank 14.

  The first, second, and third flow control plates 25, 26, and 27 are formed of flat and annular members that are arranged at predetermined intervals in the vertical direction. The outer peripheral surface is fitted and fixed to the upper inner peripheral surface of the container body 21, and the inner peripheral surface is externally fitted to the upper end portion of the first water supply pipe 23a. Is fitted and fixed to the upper end of the first water supply pipe 23a, and is disposed below the first flow restricting plate 25. The outer surface of the third flow restricting plate 27 is the upper inner peripheral surface of the container body 21. The second flow restricting plate 26 is disposed below the second flow restricting plate 26.

  The first flow restricting plate 25 includes four fan-shaped through holes 25a opened on the front and back surfaces thereof, and drainage and containers flowing along the inner peripheral surface of the container body 21 and the outer peripheral surface of the first water supply pipe 23a. The drainage that has bounced off the ceiling of the body 21 is restricted (controls the flow of the drainage), and is formed into a thin film from the through holes 25a of the first restriction plate 25 into the internal space of the container body 21. And let it flow down like a waterfall.

  The second baffle plate 26 has an outer peripheral surface (end edge) formed in a zigzag shape. The drainage flowed down by the first baffle plate 25 and the through holes of the first baffle plate 25. The waste water that has passed through 25 a is restricted and allowed to flow down from the outer peripheral portion (projecting end) of the second restricting plate 26 into the inner space of the container body 21 in a thin film shape and a waterfall shape.

  The inner surface (edge) of the third baffle plate 27 is formed in a zigzag shape, and the first baffle plate 25 and the second baffle plate 26 flow down and flow down. The drainage that has passed through each through hole 25a of the flow restricting plate 25 is restricted and allowed to flow down from the inner peripheral portion (projecting end) of the third flow restricting plate 27 into the inner space of the container body 21 in a thin film shape and a waterfall shape. .

  The water level detection unit 28 is made of a light transmissive material such as glass or resin, and the introduction pipe 28a attached to the outer peripheral surface of the container body 21 with the longitudinal direction extending in the vertical direction, and the container body 21 in the vicinity of the introduction pipe 28a. It consists of two water level sensors 28b, 28c arranged in parallel on the outer peripheral surface.

  The upper and lower ends of the introduction pipe 28a communicate with the inside of the container body 21, and the liquid level in the introduction pipe 28a is raised and lowered according to the water level in the container body 21. Sensors 28b and 28c detect the liquid level position.

  According to the water level detection unit 28, the water level in the container body 21 rises and the liquid level in the introduction pipe 28a rises. When this is detected by the upper water level sensor 28b, the water level in the container body 21 is increased. It is determined that the upper limit has been exceeded, the opening degree of the supply valve 22c is adjusted, and the oxygen gas supply amount is increased. Thereby, the oxygen gas pressure in the container body 21 is increased, the amount of water supplied to the storage tank 14 is increased, and the water level in the container body 21 is lowered.

  On the other hand, when the water level in the container body 21 is lowered and the liquid level in the introduction pipe 28a is lowered, and this is detected by the lower water level sensor 28c, it is determined that the water level in the container body 21 has exceeded the lower limit. Thus, the opening degree of the supply valve 22c is adjusted, and the oxygen gas supply amount is reduced. Thereby, the oxygen gas pressure in the container body 21 becomes low, the amount of water supplied to the storage tank 14 decreases, and the water level in the container body 21 rises.

  Thus, according to the oxygen dissolving device 20, first, oxygen gas is supplied from the oxygen supply source 22a through the supply pipe 22b and the first water supply pipe 23a into the container body 21, and the inside of the container body 21 is at atmospheric pressure. The above oxygen gas atmosphere is used.

  Next, when drainage after filtration (drainage before oxygen dissolution) is taken from the second water supply pipe 23b by the pump device 23e, the taken-up wastewater flows through the second water supply pipe 23b, and then the first In the water supply pipe 23a, it is mixed with the oxygen gas supplied from the supply pipe 22b and flows through the first water supply pipe 23a while being in contact with each other, and is discharged from the discharge port 23c together with the oxygen gas.

  The discharged waste water is spouted in a fountain shape (radially around the discharge port 23c) toward the ceiling (see C1 in FIG. 6). However, the discharged water has a first water supply pipe having an inner diameter of the discharge port 23c. Since it is formed in a smaller diameter than the other part of 23a, the pressure at the time of discharge is increased, the flow velocity is increased, and it is ejected vigorously and in a wider range radially.

  And the waste water spouted from the discharge outlet 23c collides with the ceiling surface or inner peripheral surface of the container body 21, and flows downward along the ceiling surface or inner peripheral surface (see arrow C2) or rebounds. (Not shown), it flows downward along the outer peripheral surface of the first water supply pipe 23a (not shown), and is then restricted by the first current restricting plate 25, and the first current restricting plate 25 From the through-hole 25a, it flows down into the inner space of the container body 21 in a thin film shape and a waterfall shape (see arrows C3 and C4).

  Next, the drainage flown down by the first baffle plate 25 and the drainage that bounces off and passes through the through holes 25a of the first baffle plate 25 are restricted by the second baffle plate 26, and the 2 Flows in the form of a thin film and a waterfall from the outer periphery of the flow restricting plate 26 into the inner space of the container body 21 (see arrow C5).

  Thereafter, the drainage flow controlled and flowed down by the first baffle plate 25 and the second baffle plate 26 and the drainage bounced and passed through the through holes 25a of the first baffle plate 25 are the third baffle plate 27. , And flows down from the inner periphery of the third baffle plate 27 into the inner space of the container body 21 in a thin film shape and a waterfall shape (see arrow C6), and is stored at the bottom of the container body 21.

  In such a flow process of the drainage in the first water supply pipe 23a and the container body 21, the oxygen that has contacted the drainage is dissolved and the amount of dissolved oxygen is increased to a predetermined amount, that is, the aforementioned Oxygen-dissolved water is generated.

  Thereafter, the oxygen-dissolved water stored in the container body 21 flows through the third water supply pipe 24 by the oxygen gas pressure inside the container body 21, flows into the storage tank 14, and is stored.

  When the water level of the oxygen-dissolved water stored in the container body 21 exceeds the upper limit or lower limit, the water level detection unit 28 detects the water level. When the water level exceeds the upper limit, the introduction pipe 28a is detected. The liquid level position inside is detected by the upper water level sensor 28b, and when the water level exceeds the lower limit, this is detected by the lower water level sensor 28c.

  In this way, when the water level sensor 28b, 28c detects that the water level has exceeded a certain limit, the opening degree of the supply valve 22c is adjusted, and the oxygen gas supply amount is adjusted, whereby the container body 21 is adjusted. The oxygen gas pressure inside is adjusted, the amount of water supplied to the storage tank 14 is adjusted, and the ratio of oxygen gas and oxygen-dissolved water in the container body 21 is maintained within a certain range.

  The first and second water supply pipes 23a and 23b and the third water supply pipe 24 have a small diameter in which the inner diameter D2 of the third water supply pipe 24 is the same as or smaller than the inner diameter D1 of the first and second water supply pipes 23a and 23b. Therefore, the oxygen-dissolved water in the container body 21 is hardly supplied to the storage tank 14 (the oxygen-dissolved water is easily stored in the container body 21). The oxygen gas pressure is increased to a higher pressure.

  Further, when oxygen is dissolved in the wastewater, a gas such as nitrogen originally contained (dissolved) is released from the wastewater according to Henry's law, so that the oxygen gas concentration in the container body 21 gradually decreases. This reduces the amount of oxygen dissolved in the waste water. For this reason, in order to maintain the oxygen gas concentration in the container body 21 above a certain value, a gas such as nitrogen in the container body 21 is periodically discharged.

  Specifically, first, after the supply valve 22c is closed and the supply of oxygen gas into the container body 21 is stopped, the exhaust valve 29a of the exhaust pipe 29 is opened to allow the inside of the container body 21 to communicate with the outside. Thereby, the gas pressure inside the container body 21 is reduced to a pressure equivalent to the atmospheric pressure, and the oxygen-dissolved water stored in the container body 21 is not supplied from the third water supply pipe 24 to the storage tank 14.

  Next, the waste water is further supplied into the container body 21 from the respective water supply pipes 23a and 23b, the water level in the container body 21 is raised, and the gas in the container body 21 is discharged from the exhaust pipe 29 to the outside of the container body 21. To do.

  The supply pump 15 supplies the oxygen-dissolved water stored in the storage tank 14 from the storage tank 14 into the water tank 10 through the connection pipe 14 a connecting the storage tank 14 and the water tank 10, and the control device 17. Controls the operation of the supply pump 15 based on the dissolved oxygen amount detected by the detection sensor 16 to adjust the supply amount of the oxygen-dissolved water into the water tank 10, and the stored water stored in the water tank 10. The amount of dissolved oxygen is controlled to 5.0 mg / l or more and 10.0 mg / l or less.

  According to the seafood container 1 of this example configured as described above, part of the stored water stored in the aquarium 10 is discharged as drainage by the outflow pipe 12 and flows into the filtration mechanism 11. The filtration mechanism 11 performs filtration, and the excrement of fish and shellfish S, uneaten food, and the like are removed. The drained water after the filtration treatment is oxygen-dissolved by the oxygen dissolving device 20 and stored in the storage tank 14 as oxygen-dissolved water, and then controlled by the control device 17 based on the amount of dissolved oxygen detected by the detection sensor 16. Even if the dissolved oxygen in the stored water stored in the water tank 10 is consumed by the activity of the fish and shellfish S, the oxygen dissolved amount of the stored water is increased. And maintained at 5.0 mg / l or more and 10.0 mg / l or less.

  Thus, according to the fish and shellfish storage device 1 of the present example, oxygen dissolved water is supplied into the aquarium 10, and the oxygen of the stored water stored in the aquarium 10 is adjusted by adjusting the supply amount. Since the dissolved amount can be maintained within the predetermined range, the amount of dissolved oxygen in the stored water regardless of the number of fish and shellfish S stored in the aquarium 10 and the amount of stored water stored in the aquarium 10. Can be effectively prevented from gradually falling below the amount necessary for the fish and shellfish S to live.

  Moreover, it can also match | combine with the environment when seafood S lived in the sea, a river, a lake, etc. about the point of oxygen dissolved amount. It has been empirically confirmed that if the amount of dissolved oxygen is too large, the environment changes drastically and the environment after the change cannot be adapted, and the fish and shellfish S will die. By keeping within the range, such a problem can be effectively prevented.

  In addition, since water is circulated between the water tank 10 and the oxygen dissolving device 20, the amount of oxygen dissolved in the stored water stored in the water tank 10 can be increased efficiently, and water can be efficiently used. Furthermore, since the filtration process is performed in the process of circulating water, the stored water in the water tank 10 can be kept clean.

  Further, the waste water is ejected radially from the discharge port 23c to increase the contact area with the oxygen gas of the waste water, and the waste water is restricted by the respective restricting plates 25, 26, 27. 26 and 27, it flows down into the inner space of the container body 21 in the form of a thin film and a waterfall, and is brought into contact with the oxygen gas from both sides of the water film. Further, the oxygen gas pressure inside the container body 21 Therefore, a large amount of oxygen can be efficiently dissolved in the wastewater, and oxygen-dissolved water having a high oxygen-dissolved amount can be generated. And the oxygen dissolved amount of the stored water stored in the said water tank 10 can be efficiently raised by supplying oxygen dissolved water with such a high oxygen dissolved amount to the water tank 10.

  Moreover, although each baffle plate 25,26,27 is provided in the container body 21, since this does not restrict | limit the fall flow rate of waste_water | drain, while being able to process a lot of waste_water | drain efficiently When the gas such as nitrogen is discharged, the water level in the container body 21 can be quickly raised to discharge the gas quickly.

  Further, the waste water filtered by the filtration mechanism 11 is supplied into the container body 21, and foreign matter such as fish and shellfish S excrement and uneaten bait is passed through the through holes 25 a of the first baffle plate 25, Since it is possible to prevent clogging of the water supply pipes 23a, 23b, 24 between the flow control plates 25, 26, 27, it is not necessary to perform the work of removing foreign matter, and the maintenance cost can be reduced. Since it is not necessary to disassemble the container body 21 for removing foreign matter, the structure of the container body 21 can be simplified, the manufacturing cost can be reduced, and the airtightness of the container body 21 can be increased.

  Also, by providing a plurality of flow control plates 25, 26 and 27 and increasing the number of times of drainage control, the number of times of contact between the drainage and oxygen gas is increased by changing the flow state of the drainage. This also makes it possible to dissolve oxygen more efficiently.

  Further, since the outer peripheral surface of the second baffle plate 26 and the inner peripheral surface of the third baffle plate 27 are formed in a zigzag shape, the peripheral lengths of the outer peripheral surface and the inner peripheral surface are increased, It is possible to increase the surface area of the waste water flowing down from the second flow control plate 26 and the third flow control plate 27 in the form of a thin film and a waterfall, thereby increasing the contact area with the oxygen gas, and more efficient oxygen is supplied to the waste water. Can be dissolved.

  Moreover, since the upper part of the container body 21 is formed in the spherical curved surface which protrudes outward, the waste_water | drain discharged from the discharge outlet 23c and colliding with the ceiling surface of the container body 21 is made to match the said ceiling surface. Thus, the fluid can flow to the first flow restricting plate 25 side, flow can be restricted by the first flow restricting plate 25, and can flow down into the internal space of the container body 21, and the amount of dissolved oxygen in the drainage can be increased.

  Moreover, since the upper end surface of the 1st water supply pipe 23a is arrange | positioned in the upper part side in the container body 21, and drainage is discharged from the discharge port 23c in the upper part side in the container body 21, it discharges from the discharge port 23c. After being done, the flow distance of the waste water until it is stored at the bottom of the container body 21 can be increased, and the amount of dissolved oxygen in the waste water can be further increased.

  In addition, since the inner diameter D2 of the third water supply pipe 24 is configured to be the same diameter as or smaller than the inner diameter D1 of the first and second water supply pipes 23a, 23b, the dissolved oxygen stored in the container body 21 It is difficult to supply water to the storage tank 14, the oxygen gas pressure in the container body 21 can be increased, and more oxygen can be efficiently dissolved in the waste water flowing in the oxygen gas atmosphere. it can.

  In addition, even if the oxygen gas pressure in the container body 21 rises for some reason, the water level in the container body 21 is not easily lowered, so that the water level falls below the inlet 24a of the third water supply pipe 24 and the container The inconvenience that oxygen gas in the body 21 leaks from the third water supply pipe 24 to the outside can be effectively prevented.

  Further, since the waste water and oxygen gas are mixed and brought into contact with each other, and the oxygen is dissolved in the waste water, the inside of the first water supply pipe 23a is made to flow toward the discharge port 23c. Can be dissolved in waste water.

  Further, since the inner diameter of the discharge port 23c is smaller than the other part of the first water supply pipe 23a, the pressure at the time of discharge can be increased to increase the flow velocity, and the discharge port 23c is discharged. Disperse the wastewater into a wider area and dissolve oxygen in the wastewater more efficiently and in large amounts, or dissolve oxygen mixed with wastewater in the first water supply pipe 23a into the wastewater more efficiently and in large amounts Can be made.

  In addition, since the first water supply pipe 23a is arranged at the same position as the container body 21, the waste water discharged from the discharge port 23c can be evenly dispersed to flow down in the container body 21. Can be done efficiently.

  As mentioned above, although one Embodiment of this invention was described, the specific aspect which this invention can take is not limited to this at all.

  For example, in the above example, the oxygen-dissolved water is generated using the oxygen dissolving device 20, but the present invention is not limited to this, and an oxygen dissolving device 40 as shown in FIGS. 7 to 9 can also be used. 7 is a cross-sectional view showing a schematic configuration of an oxygen dissolving apparatus according to another embodiment of the present invention, and FIG. 8 is a cross-sectional view in the direction of arrow DD in FIG. These are explanatory drawings for demonstrating the flow of the water in the oxygen dissolving apparatus of FIG.

  As shown in FIG. 7, the oxygen dissolving device 40 is different from the oxygen dissolving device 20 in the oxygen supply unit 22, the water supply unit 23, the third water supply pipe 24, and the current control plates 25, 26, and 27. The same components as those of the oxygen dissolving device 20 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 7 and 8, the oxygen dissolving apparatus 40 includes the container body 21, an oxygen supply unit 41 that supplies oxygen gas into the container body 21, the pressure detector (not shown), A water supply unit 42 that supplies wastewater into the container body 21, a water supply pipe (second water supply pipe) 43 that supplies oxygen-dissolved water in the container body 21 to the storage tank 14, and an upper position in the container body 21 The first and second flow restricting plates 44 and 45 and the water level detecting unit 28 are provided.

  The oxygen supply unit 41 includes the oxygen supply source 22a, a supply pipe 41a having one end connected to the oxygen supply source 22a and the other end connected to the upper portion of the container body 21, the supply valve 22c, and the interior of the container body 21. The exhaust valve 41b communicates with the outside and is normally controlled so that the supply valve 22c is opened at a predetermined opening and the exhaust valve 41b is closed.

  One end side of the water supply part 42 penetrates into the inside from the outer peripheral surface of the bottom of the container body 21, bends in an L shape at the center in the container body 21, and extends toward the upper side of the container body 21. At the same time, the other end side is connected to the first water supply pipe 42a connected to the filtration mechanism 11, and the first water supply pipe 42a, and the waste water after the filtration treatment is supplied into the container body 21 through the first water supply pipe 42a. A pump device 23e is provided.

  The first water supply pipe 42a is provided with a discharge port 42b whose one end (upper end) is arranged at a predetermined interval from the ceiling surface in the container body 21, and is open to the upper end surface. Then, the container body 21 opens in the direction toward the ceiling, and discharges the waste water toward the ceiling. The first water supply pipe 42a is provided with a check valve (not shown), and the check valve (not shown) prevents the drainage supplied into the container body 21 from flowing back. .

  One end side of the second water supply pipe 43 is inserted into the inside from the outer peripheral surface of the bottom of the container body 21, is bent in an L shape within the container body 21, and extends toward the bottom surface side of the container body 21. The other end side is connected to the storage tank 14, and the oxygen-dissolved water stored at the bottom of the container body 21 is supplied into the storage tank 14 by the oxygen gas pressure inside the container body 21.

  Further, the second water supply pipe 43 has the one end (lower end) arranged at a predetermined distance from the bottom surface of the container body 21, opens to the lower end surface, and supplies oxygen-dissolved water to the storage tank 14. The suction port 43a is provided. Further, the second water supply pipe 43 has an inner diameter D2 that is the same as or smaller than the inner diameter D1 of the first water supply pipe 42a.

  The first baffle plate 44 is composed of a flat plate and an annular member, and the outer peripheral surface thereof is fitted and fixed to the upper inner peripheral surface of the container body 21 so as to be substantially the same height as the upper end of the first water supply pipe 42a. The drainage that is disposed at the position and flows along the inner peripheral surface of the container body 21 and the drainage that has bounced off and collided with the ceiling surface of the container body 21, A thin film and a waterfall are allowed to flow from the periphery into the internal space of the container body 21.

  The second baffle plate 45 is also composed of a flat plate and an annular member, and its inner peripheral surface is fitted and fixed to the outer peripheral surface of the upper end side of the first water supply pipe 42a, so that it is more than the first baffle plate 44. Disposed below, the drainage flowing along the outer peripheral surface of the first water supply pipe 42a and the drainage that has bounced off the ceiling surface of the container body 21 are restricted, and the second current control plate 45 A thin film and a waterfall are allowed to flow from the outer periphery into the internal space of the container body 21.

  Thus, according to the oxygen dissolving apparatus 40, first, oxygen gas is supplied into the container body 21 by the oxygen supply unit 41, and the inside of the container body 21 is brought to an oxygen gas atmosphere at atmospheric pressure or higher. Next, when drainage after filtration (drainage before oxygen dissolution) is taken from the first water supply pipe 42a by the pump device 23e, the taken-up wastewater flows through the first water supply pipe 42a, and then It is discharged into the container body 21 from the discharge port 42b.

  The discharged waste water is spouted in a fountain shape (radial centered around the discharge port 42b) toward the ceiling (refer to arrow C11 in FIG. 9), collides with the ceiling surface and inner peripheral surface of the container body 21, It flows downward along the ceiling surface and inner peripheral surface (see arrow C12), rebounds (not shown), and flows downward along the outer peripheral surface of the first water supply pipe 42a (see arrow C13). .

  The drainage that flows along the inner peripheral surface of the container body 21 is thereafter restricted by the first flow restricting plate 44, and enters the inner space of the container body 21 from the inner peripheral portion of the first flow restricting plate 44. The drainage flowing down in the form of a thin film and a waterfall (see arrow C14) and flowing along the outer peripheral surface of the first water supply pipe 42a is restricted by the second flow restricting plate 45, and the second flow restricting plate 45 From the outer peripheral portion of the gas and into the inner space of the container body 21 in a thin film shape and a waterfall shape (see arrow C15).

  Further, most of the rebounded drainage flows down in the internal space of the container body 21 without being restricted by the respective restricting plates 44 and 45.

  Then, the waste water flowing down in the oxygen gas atmosphere is stored at the bottom of the container body 21, and the stored waste water after the oxygen dissolution treatment, that is, oxygen-dissolved water, is supplied by the oxygen gas pressure inside the container body 21. It flows through the water supply pipe 43 and flows into the storage tank 14 to be stored.

  As described above, the oxygen dissolving device 40 can also discharge the waste water radially from the discharge port 42b, and each of the waste water flowing along the inner peripheral surface of the container body 21 and the outer peripheral surface of the first water supply pipe 42a. Since it can be made to flow down from the baffle plates 44, 45 in a thin film shape and a waterfall shape, it is possible to produce oxygen-dissolved water in which a large amount of oxygen is dissolved, and the same effects as the oxygen dissolving apparatus 20 can be obtained. it can.

  In the oxygen dissolving device 40, the second flow restricting plate 45 may be configured as a second flow restricting plate 46 as shown in FIGS.

  As shown in FIGS. 10 and 11, the second baffle plate 46 is formed in a flat plate and a rectangular shape, and its outer peripheral surface is formed in a zigzag shape. And a fitting insertion hole 46b formed in the central portion, and the drainage flows down from the outer peripheral portion in a thin film shape and a waterfall shape, and the drainage is dripped into a large number of water droplets from the through hole 46a.

  The through hole 46a is formed on a concentric circle centered on the fitting insertion hole 46b, and the through hole 46a formed on the inner side and the through hole 46a formed on the outer side are displaced in the circumferential direction. Each is drilled.

  The second flow restricting plate 46 has an inner peripheral surface of the fitting insertion hole 46b fitted and fixed to an outer peripheral surface on the upper end side of the first water supply pipe 42a, and four corners supported by the inner peripheral surface of the container body 21. The first baffle plate 44 is disposed at an upper position spaced apart from the first baffle plate 44, and a gap 46 c is formed between the outer peripheral surface and the inner peripheral surface of the container body 21.

  In the oxygen dissolving apparatus including the second flow restricting plate 46 and the first flow restricting plate 44 configured as described above, the waste water flows in the container body 21 as follows.

  That is, the radially discharged waste water (see arrow C21) collides with the ceiling surface or inner peripheral surface of the container body 21 and flows downward along the ceiling surface or inner peripheral surface ( Rebound (not shown), or flow downward along the outer peripheral surface of the first water supply pipe 42a (see arrow C23).

  Then, the waste water flowing along the outer peripheral surface of the first water supply pipe 42 a and the drained water that has bounced off are thereafter restricted by the second flow restricting plate 46, and from the outer peripheral portion of the second current restricting plate 46. It flows down into a thin film shape and a waterfall shape, or drops in the form of a large number of water droplets from the through hole 46a of the second flow restricting plate 46 (see arrow C24).

  On the other hand, the drainage that flows along the inner peripheral surface of the container body 21, the drainage that bounces and passes through the gap 46 c, and the drainage that is restricted by the second restrictor plate 46 and flows down are controlled by the first restrictor plate 44. Then, it flows down in a thin film shape and a waterfall shape from the inner peripheral portion of the first baffle plate 44 (see arrow C25).

  Even if the flow control plates 44 and 46 are configured and arranged in this manner, the waste water discharged from the discharge port 42b flows down from the inner and outer peripheral portions of the flow control plates 44 and 46 in a thin film and waterfall shape. In addition, since it can be dropped in the form of a large number of water droplets from the through hole 46a, it is possible to obtain the same effect as described above, such as being able to generate oxygen-dissolved water in which a large amount of oxygen is dissolved. .

  In addition, as shown in FIG. 12, in the oxygen dissolving apparatus 20, a cylindrical flow restricting member 31 having both end surfaces opened is disposed on the ceiling surface of the container body 21 so that the axial direction thereof is along the vertical direction. However, the wastewater discharged from the discharge port 23c and flowing along the ceiling surface is restricted by the flow restricting member 31, and is formed into a thin film shape from the lower end portion of the flow restricting member 31 into the internal space of the container body 21. It can flow down like a waterfall. Although not shown, this can be applied to the oxygen dissolving device 40 in the same manner.

  Further, in this case, if the inner peripheral surface of the flow restricting member 31 is formed in a zigzag shape in plan view, the peripheral length of the inner peripheral surface is lengthened and flows down from the flow restricting member 31 as described above. The surface area of the waste water can be increased to increase the contact area with oxygen gas, and more oxygen can be efficiently dissolved in the waste water.

  Further, in the above example, the arrangement positions of the respective baffle plates 25, 26, 27, 44, 45, 46 are not particularly limited, but are preferably arranged at the upper positions in the container body 21. For example, the flow control plates 25, 45, and 46 are disposed at the upper ends of the water supply pipes 23a and 42a, and are downward from the upper ends within a range that is smaller than a value that is approximately three times the inner diameter of the discharge ports 23c and 42b. It is good to arrange in the lowered position, and it is good to arrange the baffle plates 27 and 44 above the discharge ports 23c and 42b.

  If it does in this way, after flowing down from each baffle plate 25, 26, 27, 44, 45, 46, the fall distance until it reaches the water surface of the oxygen dissolved water stored in container 21 can be lengthened. Since it can, more oxygen gas can be made to contact with waste water and to be dissolved in waste water.

  In addition, as for the positional relationship between the respective baffle plates 25, 26, 27, 44, 45, 46, either may be arranged on the upper side or the lower side, and they can be provided at substantially the same height.

  Further, the shape of each of the flow restricting plates 25, 26, 27, 44, 45, 46, for example, the shape of the outer peripheral surface and the inner peripheral surface, the shape and formation position of the through holes 25a, 46a, etc. are also particularly limited. is not. The shape of the outer peripheral surface and the inner peripheral surface formed in a zigzag shape (saw blade shape) can be a smooth curved shape, a rectangular wave shape, the saw blade shape, the curved shape, and the like, instead of the zigzag shape. A combination of rectangular waves may be used.

  Moreover, the number of arrangement | positioning of the baffle plates 25, 26, 27, 44, 45, 46 is not limited at all, and a part or all of the baffle plates 25, 26, 27, 44, 45, 46 is concerned. It can be configured without being provided, or can be configured with multiple stages as compared with the above example.

  Moreover, it is preferable that the upper end surface of the water supply pipes 23a and 42a is provided in the upper part side in the container body 21, and since drainage can be discharged in the upper part side in the container body 21 by doing in this way. The discharge distance of the drainage after being discharged from the discharge ports 23c and 42b until it is stored in the bottom of the container body 21 can be increased to further increase the amount of dissolved oxygen.

  In the above example, one water supply pipe 23a, 23b, 42a is provided in the container body 21, but a plurality of water supply pipes 23a, 23b, 42a may be provided. Further, the inner diameter D1 of the water supply pipes 23a, 23b, 42a is formed constant except for the portion of the discharge port 23c, and the inner diameter D2 of the water supply pipes 24, 43 is formed constant. It may be formed.

  In the above example, the upper portion of the container body 21 is formed in a spherical curved surface projecting outward. However, the present invention is not limited to this, and although not illustrated, a spherical curved surface projecting inward is used. It may be formed. Even in this case, the waste water that has collided with the ceiling surface of the container body 21 is caused to flow along the ceiling surface to the inner peripheral surface side of the container body 21, that is, to the first flow control plates 25 and 44 side. Since it can be made to flow down and flow down by the 1 baffle members 25 and 44, the amount of dissolved oxygen in the oxygen-dissolved water can be increased.

  Moreover, the structure of the oxygen dissolving apparatuses 20 and 40 is an example, and is not limited to the above structure. Also, the drainage flow (C1) described based on FIG. 6, FIG. 9 and FIG. -C6, C11-C15, C21-C25) are examples, and such a flow naturally changes depending on the discharge amount and discharge pressure of the waste water.

It is sectional drawing which showed schematic structure of the accommodation apparatus of the seafood concerning one Embodiment of this invention. It is sectional drawing which showed schematic structure of the oxygen dissolving apparatus which concerns on this embodiment. It is sectional drawing of the arrow AA direction in FIG. It is sectional drawing of the arrow BB direction in FIG. It is sectional drawing of the arrow CC direction in FIG. It is explanatory drawing for demonstrating the flow of the water in the oxygen dissolving apparatus of FIG. It is sectional drawing which showed schematic structure of the oxygen dissolving apparatus which concerns on other embodiment of this invention. It is sectional drawing of the arrow DD direction in FIG. It is explanatory drawing for demonstrating the flow of the water in the oxygen dissolving apparatus of FIG. It is the top view which showed schematic structure, such as a 2nd baffle plate which concerns on other embodiment of this invention. It is sectional drawing which showed schematic structure, such as a 2nd baffle plate which concerns on other embodiment of this invention. It is sectional drawing which showed schematic structure, such as a current control member which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seafood apparatus 10 Water tank 11 Filtration mechanism 12 Outflow pipe 13 Water supply mechanism 14 Storage tank 14a Connection pipe 15 Supply pump 16 Detection sensor 17 Control apparatus 20 Oxygen dissolution apparatus 21 Container body 22 Oxygen supply part 22b Supply pipe 23 Water supply Portion 23a 1st water supply pipe 23b 2nd water supply pipe 24 3rd water supply pipe 25 1st flow control plate 26 2nd flow control plate 27 3rd flow control plate 28 Water level detection part 29 Exhaust pipe

Claims (5)

A storage device for storing seafood in a live state,
A storage container for storing water and inhabiting the seafood;
A generating means for generating oxygen-dissolved water in which oxygen is dissolved in water, an oxygen-dissolved water supply means for supplying oxygen-dissolved water generated by the generating means into the storage container, and stored in the storage container Detecting means for detecting the dissolved oxygen amount of the stored water, and controlling the operation of the oxygen-dissolved water supply means based on the dissolved oxygen amount detected by the detecting means to store the stored water stored in the storage container A water supply mechanism comprising a control means for setting the dissolved oxygen amount to 5.0 mg / l or more and 10.0 mg / l or less;
A fish and shellfish storage device comprising a discharge mechanism for discharging the stored water in the storage container to the outside.   2. The fish and shellfish storage device according to claim 1, wherein the generation unit is configured to generate oxygen dissolved water by dissolving oxygen in the wastewater discharged by the discharge mechanism. The generating means includes
An oxygen container comprising an airtight container body and a supply pipe connected to the inside of the airtight container body, wherein oxygen gas is supplied to the airtight container body through the supply pipe to make the inside of the airtight container body an oxygen gas atmosphere at atmospheric pressure or higher. A supply means; and a first water supply pipe having one end connected to the inside of the sealed container body and arranged vertically in the sealed container body, and having a discharge port formed at an upper end surface thereof, from the discharge port of the first water supply pipe A water supply means for discharging water toward the ceiling of the sealed container body, and a second water supply pipe connected to the inside of the sealed container body and supplying oxygen-dissolved water stored at the bottom of the sealed container body to the outside And a first baffle member projecting inward from the inner surface of the sealed container body and / or a plate-like second baffle member projecting outward from one outer peripheral surface of the first water supply pipe,
Water is discharged from the discharge port toward the ceiling of the sealed container body, and is discharged from the discharge port and flows along the inner surface of the sealed container body and / or the outer peripheral surface of the first water supply pipe. Is allowed to flow into the internal space of the sealed container body from the protruding end of the first and / or second flow restricting member, thereby bringing water and oxygen gas into gas-liquid contact within the sealed container body. Configured to produce the oxygen-dissolved water,
2. The fish and shellfish storage device according to claim 1, wherein the oxygen-dissolved water supply means is configured to supply oxygen-dissolved water supplied from the second water supply pipe into the storage container.   4. The fish and shellfish storage device according to claim 3, wherein the water supply means of the generating means is configured to discharge the waste water discharged by the discharge mechanism from the discharge port. A filtration mechanism for filtering waste water discharged by the discharge mechanism;
5. The fish and shellfish storage device according to claim 4, wherein the water supply means of the generating means is configured to discharge the waste water filtered by the filtration mechanism from the discharge port.

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