JP2018015756A - Blending treatment body, blending treatment, fluid mixer, fluid mixing processor, seafood cultivation system, and seafood cultivation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blending treatment body and a blending treatment method capable of reducing a pressure loss and improving miniaturizing efficiency of a dispersion phase, and additionally, to reduce the electric power consumption of a booster pump, and to provide fluid mixer, a fluid mixing processor, a seafood cultivation system, and a seafood cultivation method.SOLUTION: By arranging a blending treatment body in a fluid passage (R), in which a plurality of different fluids (F) or a mixing treatment object, a blending treatment body is constituted to form a flat narrow flow passage (Rs), in which a portion of the fluid (F) flows in the fluid passage (R).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mixed processing body and a mixing processing method for mixing and processing a plurality of different fluids, a fluid mixer including the mixed processing body, a fluid mixing processing apparatus equipped with the fluid mixer, and a fish and shellfish including the fluid mixing processing apparatus. The present invention relates to an aquaculture system and a seafood culture method. As the plurality of different fluids here, for example, there are combinations of liquid and liquid, liquid and gas, powder and liquid, and the liquid includes water, bath water, seawater, fuel oil, etc. Examples of the gas include oxygen, carbon dioxide, nitrogen, and air. Seafood is aquatic animals such as fish and shellfish.

  Conventionally, there exists what was disclosed by patent document 1 as one form of the fluid mixer. That is, in Patent Document 1, a disk-shaped second diffusion element is disposed opposite to a disk-shaped first diffusion element in which a fluid inlet is formed at the center, and between the two diffusion elements. A diffusion / mixing unit that forms a diffusion / mixing channel that diffuses and mixes the fluid flowing in from the inlet on the center side in the radial direction toward the peripheral side, and a fluid outlet in the center The disc-shaped second collective element is arranged to face the disc-shaped first collective element, and the fluid flowing from the peripheral portion side between the collective elements is radially directed toward the central portion side. An assembly / mixing unit that forms an assembly / mixing flow path that flows and collects / mixes, and a fluid mixer that connects the terminal end of the diffusion / mixing flow path and the start end of the assembly / mixing flow path It is disclosed.

  In addition, hexagonal recesses having the same appropriate depth and size are formed in the honeycomb structure on the opposing surfaces of the first and second diffusion elements and the opposing surfaces of the first and second assembly elements. The recesses are arranged at different positions so as to communicate with each other, and in the diffusion / mixing channel and the collecting / mixing channel, the fluid flows in the radial direction while repeating merging and splitting (dispersing) while meandering. I have to.

JP-A-9-52034

  However, the fluid mixer disclosed in Patent Document 1 includes a diffusion / mixing flow path that diffuses and mixes the fluid flowing in from the inflow port on the central portion side in the radial direction toward the peripheral portion, and the peripheral portion. Since the flow channel structure that gathers and mixes the fluid flowing in from the side in the radial direction toward the center is formed in the same way, it is more concentrated than the diffusion / mixing channel with high mixing and dispersion function.・ Although the number of dispersions in the mixing channel was much smaller, the pressure loss was the same as that in the diffusion / mixing channel. Therefore, it has been desired to reduce the power consumption of the pressurizing pump that pressurizes and supplies the fluid to the fluid mixer, and to increase (efficiency) the outflow amount of the mixed fluid.

  Therefore, the present invention provides a mixed processing body and a mixing processing method capable of reducing the pressure loss and improving the refinement efficiency of the dispersed phase, and in addition to that, the power consumption of the pressure pump Providing a fluid mixer, a fluid mixing device, a fish culture system, and a fish culture method capable of reducing the amount of flow and increasing the flow rate (efficiency) of the mixed treatment fluid Objective.

  The mixed processing body according to the present invention is arranged in a fluid flow path through which a plurality of different fluids to be mixed flows, thereby forming a narrow flow path in which a part of the fluid flows in the fluid flow path. It is configured as follows.

  In the mixed processing body according to the present invention, it is preferable that a plurality of narrow channels are formed in parallel, and the fluid is divided into the narrow channels.

  The mixing processing method according to the present invention promotes the fluid mixing process by causing a part of the fluid to flow in the narrow channel in a fluid channel in which a plurality of different fluids to be mixed flows.

  The fluid mixer according to the present invention includes a flow path forming case that forms a fluid flow path, and the mixing treatment body that is disposed in the flow path forming case. In the flow path forming case, it is preferable that a plurality of the mixed processing bodies are arranged along the fluid flow path and arranged in series at intervals.

  The fluid mixing processing apparatus according to the present invention introduces a liquid as a fluid and a liquid or a gas as a fluid different from the liquid into the fluid mixer, and the liquid and the liquid in the fluid mixer, or The liquid and the gas are mixed and processed.

  The fluid mixing treatment apparatus can be configured such that water as a liquid and fuel oil as a liquid are mixed to produce an emulsion fuel oil.

  The fluid mixing apparatus may be configured such that water as a liquid and nitrogen gas as a gas are mixed to generate nitrogen water in which nitrogen gas is dissolved in water.

  The fluid mixing treatment device may be configured such that a hot spring or water as a liquid and a carbon dioxide gas as a gas are mixed to generate a carbonated spring in which the carbon dioxide gas is dissolved in the hot water or water. .

  The fluid mixing treatment device may be configured such that water as a liquid and oxygen gas as a gas are mixed to generate oxygen water in which oxygen gas is dissolved in water.

  The fluid mixing device refines oxygen gas as a gas and uniformly mixes it with aquaculture water as a liquid to generate high-concentration oxygen water in which oxygen gas is dissolved in a supersaturated state in the aquaculture water. It can also be.

  The seafood aquaculture system according to the present invention includes the fluid mixing and processing apparatus and a culture tank for culturing seafood, and the high-concentration oxygen water generated by the fluid mixing and processing apparatus is supplied to the culture tank. I am doing so.

  The fish and shellfish culture method according to the present invention promotes the growth of fish and shellfish by culturing the fish and shellfish in the high-concentration oxygen water generated by the fluid mixing treatment apparatus.

  According to the present invention, the following effects are produced. That is, according to the present invention, it is possible to provide a mixed processing body and a mixing processing method capable of reducing pressure loss and improving the refinement efficiency of the dispersed phase. In addition to that, a fluid mixer and a fluid mixing processing apparatus that can reduce the power consumption of the pressurizing pump and increase the outflow amount (efficiency) of the mixed processing fluid. A seafood culture system and a seafood culture method can be provided.

Explanatory drawing of the mixing process body as 1st Embodiment. Plane | planar explanatory drawing in the fluid flow path which has arrange | positioned the mixing process body. Side surface explanatory drawing in the fluid flow path which has arrange | positioned the mixing process body. Explanatory drawing of the mixing process body as 2nd Embodiment. Explanatory drawing of the modification of the mixing process body as 2nd Embodiment. The perspective explanatory view of the fluid mixer as a 1st embodiment. Exploded perspective view of a fluid mixer as a first embodiment. Side surface explanatory drawing of the fluid mixer as 1st Embodiment. FIG. 9 is a cross-sectional view taken along the line I-I in FIG. 8. Explanatory drawing of a flow path formation case. The perspective explanatory view of the fluid mixer as a 2nd embodiment. Exploded perspective view of a fluid mixer as a second embodiment. Side surface explanatory drawing of the fluid mixer as 2nd Embodiment. The conceptual explanatory drawing of a seafood culture system.

  Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the mixed processing body and the mixing processing method according to the present embodiment will be described, then the configuration of the fluid mixer including the mixed processing body will be described, and then the gas-liquid equipped with the fluid mixer The configuration of the mixing treatment apparatus will be described. Finally, the configuration of the fish and shellfish cultivation system including the gas-liquid mixing treatment apparatus and the fish and shellfish cultivation method will be described.

[Description of Configuration of Mixed Processing Body as First Embodiment]
A1 shown in FIGS. 1 to 3 is a mixed processing body as the first embodiment according to the present embodiment. As shown in FIGS. 1 to 3, the mixed processing body A <b> 1 includes a support piece 10 formed in a bolt shape, first and second washers 11 and 12, first and second elastic material pieces 13 and 14, A plurality (25 in this embodiment) of narrow flow path forming pieces 15, a plurality (24 in this embodiment) of spacers 16 as interval holding pieces, and nuts 17 are provided.

  The support piece 10 has a rod-like book piece 10a formed in a circular cross section, a head part 10b formed by bulging the base end part of the book piece 10a in the radial direction, and a peripheral surface of a tip part of the book piece 10a. The formed male screw portion (not shown) is integrally formed of a metal material or a synthetic resin material.

  The first and second washers 11 and 12 are formed in a thin disk shape from a metal material or a synthetic resin material, and circular first and second insertion holes 11a through which the main piece 10a can be inserted in the center. , 12a. The first washer 11 is formed with a diameter larger than the diameter of each arrangement hole formed in the flow path forming case 20 of the fluid mixer B described later. The second washer 12 is formed to have a diameter smaller than the diameter of each arrangement hole described later.

  The first and second elastic material pieces 13 and 14 are made of an elastic material such as elastic rubber so as to have a thick disk shape having a diameter slightly smaller than the diameter of each of the arrangement holes to be described later. Circular first and second piece insertion holes 13a and 14a through which 10a can be inserted are formed. When the first and second elastic material pieces 13 and 14 are pressed in the axial direction, the first and second elastic material pieces 13 and 14 are elastically deformed in a bulging shape in the radial direction until the diameter becomes larger than the diameter of each arrangement hole. I have to.

  The narrow channel forming piece 15 is formed of a metal material or a synthetic resin material into a thin disk shape having a diameter slightly smaller than the diameter of each arrangement hole to be described later, and the main piece 10a can be inserted into the center portion. A circular forming piece insertion hole 15a is formed.

  The spacer 16 is formed of a metal material or a synthetic resin material into a thin disk shape having a diameter smaller than the outer diameter of the narrow channel forming piece 15 and a circular spacer through which the main piece 10a can be inserted at the center. The insertion hole 16a for use is formed. Here, the outer diameter of the spacer 16 is formed to be smaller than the outer diameter of the narrow channel forming piece 15, the opposing surfaces of the adjacent narrow channel forming pieces 15, 15, and both narrow channel forming pieces 15. , 15 and the outer peripheral surface of the spacer 16, a narrow channel Rs that opens in the circumferential direction and the outer side is formed flat on the outer periphery of the main piece 10 a.

  In other words, the narrow channel Rs can be appropriately set and adjusted by the outer diameter of the narrow channel forming pieces 15, 15, the outer diameter of the spacer 16, and the thickness of the spacer 16. That is, the narrow channel Rs can be easily adjusted by appropriately replacing the narrow channel forming piece 15 and the spacer 16 with the main piece 10a. It can be set according to the viscosity of the fluid F mixed through the narrow channel Rs, the degree of refinement of the dispersed phase of the fluid F to be mixed (mode diameter level to be nano-sized), and the like. Here, nano-fabrication means that the material is refined to the nano level, and the nano level means a level where the dispersed phase is refined to a particle size including less than 1 μm.

  For example, when the viscosity of the fluid F is large (small), as shown in FIG. 1, the relative outer diameter difference between the outer diameter of the narrow flow path forming pieces 15 and 15 and the outer diameter of the spacer 16. The projection width W1 of the narrow channel forming pieces 15, 15 is set to be large (small) and the wall thickness W2 of the spacer 16 is set to be large (small), so that the channel cross-sectional area of the flat narrow channel Rs is large ( Small). Further, when it is desired to make the dispersed phase of the fluid F fine, the protrusion width W1 is set to be large in proportion to the degree of fineness, and the wall thickness W2 of the spacer 16 is set to be small and thin so as to narrow the flow. The road Rs is narrowed more flatly. Here, the protrusion width W1 can be appropriately set and adjusted in a range of 2 times or more, preferably 2 to 5 times the thickness W2.

  The narrow channel forming piece 15 can be formed as thin as possible. Further, the narrow channel forming piece 15 can be sharpened by making both ends of the tip edge portion into a double-edged tapered surface. By doing so, the inflow of the fluid F to the adjacent narrow channel Rs, Rs can be made smooth through the tapered surface, and the outflow of the fluid F from the narrow channel Rs can be made smooth. In particular, there is a remarkable effect in facilitating fluid inflow / outflow to the narrowed narrow channel Rs. As a result, it is possible to synergistically improve the effects of pressure loss reduction and dispersed phase refinement.

  The nut 17 is formed of a metal material or a synthetic resin material into a thick short tube shape, is formed to have a smaller diameter than an arrangement hole described later, and is screwed to the male screw portion of the support piece 10 at the center portion. A wearable female screw portion (not shown) is formed.

  As described above, the mixed processing body A1 has a plurality of narrow flow paths in which the first washers 11 and the first elastic material pieces 13 are alternately arranged in the main piece 10a of the support 10 through the insertion holes. The forming piece 15 and the spacer 16, the second elastic material 14, and the second washer 12 are sequentially inserted, and the female screw portion of the nut 17 is screwed to the male screw portion of the support 10 so as to be integrated. doing.

  The narrow channel forming pieces 15 and the spacers 16 arranged alternately are pressed in the axial direction of the main piece 10a by tightening the nuts 17 so that the narrow channel forming pieces 15 and the spacers are pressed. 16, a plurality (in this embodiment, a large number) of narrow channels Rs are formed and held in a flat shape in the axial direction of the main piece 10a. In addition, by removing the threaded portion from the male threaded portion by unscrewing, each narrow channel forming piece 15 and each spacer 16 can be easily removed from the main piece 10a and replaced with a desired shape. Can do. That is, the maintenance of the mixed processing body A1 and the adjustment of the flatness of the narrow channel Rs can be easily performed.

  The mixed processing body A1 configured as described above has its axis lined in a direction intersecting (preferably orthogonal) to the axial direction in the fluid flow path R through which a plurality of different fluids F to be mixed flows. Deploy. Then, the fluid F flowing in the fluid flow path R collides with the mixed processing body A1, and is divided into two divided states along the peripheral surface of the mixed processing body A1, and merges behind the mixed processing body A1. The At this time, the fluid F divided along the peripheral surface of the mixed processing body A1 flows into a large number of narrow flow paths Rs formed in parallel in the axial direction of the support piece 10, and further into a multi-divided state. Divided. The fluid F that has passed through each narrow channel Rs generates a vortex or turbulent flow behind the support piece 10, and the dispersed phase of the fluid F is refined by the vortex or turbulent flow.

  Then, when the fluid F is diverted from the relatively wide fluid flow path R into the narrow narrow flow path Rs and flows in from the narrow flow path Rs to the fluid flow path R, it joins. In addition, a speed difference is generated between the fluids F, and a shearing force is generated. As a result, the dispersed phase of the fluid F is also refined by shearing force. Further, the passage flow velocity of the fluid F passing through the narrow channel Rs is increased as the narrow channel Rs is narrowed, and the above-described miniaturization efficiency is improved. Here, the mixed processing body A1 is arranged in the fluid flow path R so that the fluid F is divided into two lines in a line-symmetric manner, and a part of the dispersed phase of the fluid F is passed through the many narrow flow paths Rs. Since miniaturization is performed, loss of flow, that is, pressure loss can be reduced.

[Description of Configuration of Mixed Processing Body as Second Embodiment]
A2 shown in FIG. 4 is a mixed processing body as the second embodiment according to the present embodiment. As shown in FIG. 4, the mixed processing body A <b> 2 includes a cantilever support piece 70 formed in a bolt shape, a plurality (9 in this embodiment) of narrow channel forming pieces 15, and a plurality (in this embodiment). 9) spacers 16, nuts 17, and fitting covering pieces 71 that cover the nuts 17 in a fitted state. In the mixed processing body A2, as in the mixed processing body A1 of the first embodiment, a large number of narrow flow paths Rs are arranged in parallel in the axial direction of the cantilever support piece 70 by the narrow flow path forming pieces 15 and the spacers 16. To be formed.

  The cantilever support piece 70 bulges in the radial direction at the base end portion of a rod-like cantilever book piece 70a formed in a circular cross-section, and has a head portion 70b with an operation recess, an O-ring fitting portion 70c, and an attachment portion. While the male screw portion 70d is formed adjacent to the axial direction, a male screw portion (not shown) for screwing the nut 17 is formed on the peripheral surface of the tip portion of the cantilevered piece 70a. The cantilever support piece 70 is integrally formed of a metal material or a synthetic resin material. The length of the cantilever book piece 70a is set so that the tip is located at the axial position (center part) of the flow path forming case 20 of the fluid mixer B2 to be described later.

  The head portion 70b with the concave portion for operation is formed in a disk shape having a diameter larger than the diameter of each arrangement hole formed in the flow path forming case 20 of the fluid mixer B2 to be described later. An operation recess 70e is formed in the center of the ceiling surface of the head portion 70b with the operation recess for screwing / releasing operation by inserting the tip of the screw operation tool.

  The O-ring fitting portion 70c is formed in a disk shape having a diameter smaller than the diameter of each arrangement hole formed in the flow path forming case 20 of the fluid mixer B2 described later. An O-ring 72 as a sealing material can be fitted on the outer peripheral surface of an O-ring fitting portion 70c formed in a concave line between the head portion 70b with a concave portion for operation and the male screw portion 70d for attachment. .

  The mounting male screw portion 70d is a disk having a diameter smaller than the diameter of each arrangement hole formed in the flow path forming case 20 of the fluid mixer B2, which will be described later, and larger in diameter than the O-ring fitting portion 70c. The male screw portion 70f is formed on the outer peripheral surface. The male screw portion 70f can be screwed to a female screw portion (not shown) formed on the inner peripheral surface of each arrangement hole described later.

  The fitting covering piece 71 is formed in a cap shape that covers the nut 17 in a fitting state by an elastic material such as elastic rubber. The fitting covering piece 71 has an outer diameter that is the same as the outer diameter of the spacer 16. On the outer peripheral surface of the fitting covering piece 71, two narrow flow path forming pieces 15, 15 are attached outwardly with an interval of the wall thickness W <b> 2 of the spacer 16. A narrow channel Rs is formed on the outer periphery of the fitting covering piece 71. The ceiling part 71a of the fitting covering piece 71 is formed flat.

  As described above, the mixed processing body A2 includes the plurality of narrow flow path forming pieces 15 and the spacers 16 that are alternately arranged in the cantilever book pieces 70a of the cantilever support pieces 70 through the respective insertion holes, and the second The elastic material 14 and the second washer 12 are sequentially inserted, and the female screw portion of the nut 17 is screwed to the male screw portion of the cantilever support piece 70, and the fitting covering piece 71 is externally fitted to the nut 17. And are configured integrally.

  The mixed processing body A2 configured as described above has its axis lined in a direction intersecting (preferably orthogonal) to the axial direction in the fluid flow path R through which a plurality of different fluids F to be mixed flows. Deploy. The two mixed processing bodies A2 can be arranged in pairs with the fitting covering pieces 71 and 71 facing each other on the same straight line, that is, in line symmetry or point symmetry. At this time, the flat ceiling portions 71a and 71a of the fitting cover pieces 71 and 71 facing each other are brought into surface contact with each other in a pressed state. The fluid F is divided into two divided states by two mixed processing bodies A2 arranged in a straight line, and a large number of narrow flow paths Rs formed on the outer periphery of the cantilever piece 70a, and each fitting coating A part of the fluid F flows into the narrow flow path Rs formed on the outer periphery of the piece 71 so as to be divided into a plurality of divided states. By doing so, also in the mixed processing body A2, the mixing processing function is caused to occur as in the mixed processing body A1.

[Description of Modified Example of Mixed Processing Body as Second Embodiment]
FIG. 5 shows a modification of the mixed processing body A2 as the second embodiment. In the modified example of the mixed processing body A2, a set of three mixed processing bodies A2 are arranged in the cross section of the fluid flow path R, and the tips are brought into contact with each other, while the three contact points are centered. The proximal ends are spaced apart from each other by 120 degrees. The fitting covering piece 71 here forms the ceiling 71a in a conical shape and forms a cross-sectional angle at the top of 120 degrees. Then, the conical surfaces formed on the ceiling portion 71a of each of the fitting covering pieces 71 of the three mixed processing bodies A2 are brought into line contact or surface contact with each other in a pressed state, and the fluid F is mixed into the three. While being divided into three divided states by the processing body A2, fluid is supplied to the many narrow channels Rs formed on the outer periphery of each cantilevered piece 70a and the narrow channel Rs formed on the outer periphery of each fitting covering piece 71. A part of F is allowed to flow. By doing so, also in the modified example of the mixed processing body A2, the mixing processing function is caused to occur similarly to the above-described mixed processing body A1.

  In addition, four mixed processing bodies A2 are arranged in a cross shape in the cross section of the fluid flow path R so that the fluid F is divided into four divided states by the four mixed processing bodies A2, and each cantilever is By mixing a part of the fluid F into the many narrow channels Rs formed on the outer periphery of the main piece 70a and the narrow channels Rs formed on the outer periphery of each fitting covering piece 71, the above-described mixing is performed. It is also possible to cause a mixing processing function to occur as in the case of the processing body A1. At this time, the ceiling portion 71a of the fitting covering piece 71 is formed in a conical shape, the cross-sectional angle of the top portion is formed at 90 degrees, and the adjacent ceiling portions 71a, 71a are easily in line contact or surface contact with each other. Like that.

[Explanation of mixing method]
In the mixing processing method according to the present embodiment, a part of the fluid F is shunted in the fluid flow path R in which a plurality of different fluids F to be mixed flow, and the shunted fluid F is flat and narrow. By flowing in Rs, the mixing process of the fluid F is promoted.

  More specifically, in the mixing processing method, any of the mixed processing bodies is arranged by disposing the mixed processing body A1, the mixing processing body A2, or the modification of the mixing processing body A2 in the fluid flow path R. A part of the fluid F is divided into a two-divided state or a three-divided state by A1 and A2, and the divided fluid F is divided into a flat narrow channel Rs formed in one of the mixed processing bodies A1 and A2. By flowing, the mixing process of the fluid F is promoted. Furthermore, by arranging a plurality of the mixed processing bodies A1 and A2 in the fluid flow path R at intervals in the axial direction of the fluid flow path R, the mixing process of the fluid F can be further promoted. .

  At this time, the dispersed phase of the fluid F flowed and passed through the narrow channel Rs and the shear force generated by the inter-fluid velocity difference in the narrow channel Rs included in any of the mixed processing bodies A1 and A2. Later, the fluid F is generated at the nano level (desirably, the mode diameter of the dispersed phase is less than 1 μm, more preferably near 100 nm) by the vortex or turbulence generated behind the support piece 10 or the cantilever support piece 70. Refined.

  According to the mixing treatment method according to the present embodiment, for example, water as a continuous phase and fuel oil as a dispersed phase are mixed to produce an emulsion fuel oil. And oxygen gas as a dispersed phase are mixed to produce high-concentration oxygen water Wo (see FIG. 14) in which the oxygen gas is dissolved in a supersaturated state. Nitrogen water in which nitrogen gas is mixed and dissolved in water, in other words, the DO value (dissolved oxygen amount) is, for example, low concentration oxygen water that is 1 mg / L or less. Alternatively, hot water or water as a continuous phase and carbon dioxide gas as a dispersed phase can be mixed to produce a high-concentration carbonated spring. Here, the high-concentration carbonated spring is obtained by dissolving 1000 ppm or more of carbon dioxide gas (free carbon dioxide) in hot water or water per liter.

[Description of Configuration of Fluid Mixer as First Embodiment]
B1 shown in FIGS. 6-9 is the fluid mixer as 1st Embodiment which concerns on this embodiment. As shown in FIGS. 6 to 9, the fluid mixer B <b> 1 includes the above-described mixed processing body A <b> 1, a straight cylindrical flow path forming case 20 to which the mixed processing body A <b> 1 is attached, A straight cylindrical decorative case 21 arranged in a double cylinder shape, an upstream connection piece 22 communicating with the upstream side of both cases 20, 21, and a downstream side communicating with the downstream side of both cases 20, 21 A connecting piece 23, an upstream fixing piece 24 that is screwed to the upstream end of the decorative case 21 to fix the upstream connecting piece 22, and a downstream connecting piece that is screwed to the downstream end of the decorative case 21 And a downstream side fixing piece 25 for fixing 23.

  The flow path forming case 20 includes an introduction port 30 through which the fluid F is introduced, a fluid flow path R through which the fluid F introduced from the introduction port 30 flows, and a discharge port 31 through which the fluid F is derived from the fluid flow path R. And a plurality (five in this embodiment) of mixed processing bodies A1 are arranged in the flow path forming case 20.

  More specifically, the mixed processing body A1 has a pair of spiral (double spiral) first and second virtual lines K1, K2 drawn on the peripheral wall of the flow path forming case 20 in the axial direction. While being arranged in a transverse penetrating manner, five are arranged along the extending direction of the first and second imaginary lines K1, K2 with a certain interval.

  The pair of first and second imaginary lines K1, K2 draws two straight lines in a state where the flow path forming case 20 is expanded in a flat plate shape, as shown in the development explanatory view of FIG. These straight lines are arranged in parallel so as to face each other 180 degrees around the axis of the flow path forming case 20. In the position on the first imaginary line K1, the first arrangement hole 34a to the fifth arrangement hole 38a are formed with a certain interval from the upstream side to the downstream side, and the position on the second imaginary line K2. The first disposition hole 34b to the fifth disposition hole 38b are formed with a certain interval from the upstream side to the downstream side.

  Then, when the flow path forming case 20 developed in a flat plate shape is bent into an original cylindrical shape, the pair of first and second virtual lines K1, K2 are formed in a double spiral shape, They are arranged at point-symmetrical positions around the axis of the flow path forming case 20. The pair of first arrangement holes 34a, 34b to fifth arrangement holes 38a, 38b arranged on the pair of first and second virtual lines K1, K2 are respectively centered on the axis of the flow path forming case 20. Are arranged at point-symmetrical positions (on the same diameter).

  Therefore, the first arrangement holes 34a and 34b to the fifth arrangement holes 38a and 38b are respectively inserted through the tip of the mixed processing body A1 from the one arrangement hole side, and are arranged to face each other at a point-symmetrical position. By projecting the tip from the arrangement hole, it can be arranged in a transverse penetrating manner at a position on the same diameter in the flow path forming case 20. Then, the five mixed processing bodies A1 are arranged at twisted positions along the first and second virtual lines K1, K2. That is, when the five mixed processing bodies A1 are viewed from the axial direction of the fluid flow path R (the upstream side or the downstream side of the flow path forming case 20), the circumferential direction around the axial center of the flow path forming case 20 Are sequentially arranged at a position biased at a constant angle.

  In the pair of first arrangement holes 34a, 34b to fifth arrangement holes 38a, 38b, the mixed processing bodies A1 are respectively inserted and attached from the front end side of the support body 10 so as to be freely inserted and removed. At this time, the mixed processing body A1 is arranged in a state of penetrating and traversing at a position (diameter position) passing through the center of the circular axial section of the fluid flow path R formed in the flow path forming case 20. The first washer 11 is locked from the outside in the insertion hole on the inserted side. At this time, the nut 17 is exposed from the flow path forming case 20 from the other arrangement hole. When the exposed nut 17 is tightened, the first and second elastic material pieces 13 and 14 are pressed in the axial direction thereof, and the elastic material pieces 13 and 14 are bulged and deformed in the radial direction. As a result, the outer peripheral surface of each elastic material piece 13, 14 is pressed against the inner peripheral surface of the arrangement hole (surface contact in the pressed state), and a sealing effect by each elastic material piece 13, 14 is generated. Then, the mixed processing body A1 is attached in a fixed state in the flow path forming case 20. In addition, when inserting the mixed processing body A1 into the arrangement hole, the first and second elastic material pieces 13 and 14 are not bulged and deformed in the radial direction with the nut 17 in a relaxed state in advance. Leave it in a state. Around the head 10b and the nut 17 projecting outward from the flow path forming case 20 in the radial direction, a water-stopping material 40 as a sealing material is caulked (filled), and each of the arrangement holes 34a to 38b. Is blocked from the outside. Further, the water stop material 40 prevents the fluid F flowing in the fluid flow path R from leaking or flowing out of the flow path forming case 20 through the respective arrangement holes 34 a to 38 b.

  On the inner peripheral surface of the flow path forming case 20, upper and downstream concave grooves 41 and 42 are formed at the upstream end and the downstream end, respectively, and the concave grooves 41 and 42 are used as sealing materials. O-ring shaped gaskets 43 and 44 are fitted and arranged.

  The decorative case 21 covers the head 10b and the nut 17 of the mixed processing body A1 projecting outward in the radial direction from the flow path forming case 20, and the sliding of the mixed processing body A1 in the axial direction from the outside. It is formed with an inner diameter that can be regulated (prevented from coming off). The decorative case 21 is formed in the same cylinder length as the flow path forming case 20.

  As shown in FIGS. 6 to 8, the upstream connection piece 22 protrudes from a cylindrical insertion portion 50 formed so as to be able to be inserted into the introduction port 30 of the flow path forming case 20, and an outer peripheral surface end portion of the insertion portion 50. The flange 51 formed in a shape and the cylindrical connection 52 protruding coaxially with the fitting portion 50 on the outer surface of the flange 51 are integrally formed of a synthetic resin material. The fitting portion 50 has an outer diameter that is substantially the same as the inner diameter of the flow path forming case 20, and is closely attached to the inner peripheral surface of the flow path forming case 20 via the gasket 43 so that it can be inserted and removed freely. The flange portion 51 is in contact with the end surface of the flow path forming case 20 to limit the insertion width of the insertion portion 50 to be inserted into the flow path forming case 20. The connecting portion 52 has a tapered shape in which the inner peripheral surface gradually increases in diameter from the proximal end side to the distal end side, and a connecting female screw portion 53 is formed on the inner peripheral surface.

  The downstream connection piece 23 is attached to the outlet 31 of the flow path forming case 20, but is formed in the same shape as the upstream connection piece 22 and can be shared. Therefore, the downstream connection piece 23 can be attached to the inlet 30 of the flow path forming case 20, and the upstream connection piece 22 can be attached to the outlet hole 31 of the flow path forming case 20. Reference numeral 54 denotes an introduction pipe, which has an introduction-side male screw portion 55 at the end. Reference numeral 56 denotes a lead-out pipe, and a lead-out side male screw part 57 is formed at the end. Both the male screw portions 55 and 57 can be detachably screwed to the connecting female screw portion 53.

  The upstream side fixing piece 24 and the downstream side fixing piece 25 are formed in the same shape as each other and can be shared. The upper / downstream connection pieces 22, 23 can be fixed to the flow path forming case 20 via the upper / downstream fixing pieces 24, 25. These fixing pieces 24, 25 are cylindrical fixing portions 60, 60 and ring plate-like engaging portions 61, 61 extending inwardly from the outer peripheral edge of each of the fixing portions 60, 60. , Formed from. The fixing portion 60 has a fixing female screw portion 62 formed on the inner peripheral surface thereof, and is fitted on the end portion of the flow path forming case 20 and is fixed on the upstream side formed on the end portion of the outer peripheral surface of the decorative case 21. The fixing female screw portion 62 is screwed onto the male screw portion 63 (or the downstream fixing male screw portion 64), so that it can be fixed to the decorative case 21. The engaging portion 61 is externally fitted to the connecting portion 52 and tightens the fixing portion 60 so that its inner surface engages with the outer surface of the flange portion 51 in a contact state.

  And the engaging part 61 can clamp the collar part 51 between the end surfaces of the flow path formation case 20. As a result, the connection pieces 22 and 23 can be fixed in the connected state to the introduction / exit holes 30 and 31 of the flow path forming case 20 via the fixing pieces 24 and 25. Further, the connection pieces 22 and 23 can be removed from the flow path forming case 20 by unscrewing the fixing pieces 24 and 25 in the opposite direction.

  As described above, the fluid flow path R formed in the flow path forming case 20 has a circular axial cross section. The single mixed processing body A1 is disposed in the fluid flow path R along the diameter of the axial cross section. Therefore, on both sides of the mixed processing body A1, the bypass flow path is symmetrized in a geometrically equivalent form so that the fluid F is divided into two divided states along the bypass flow path and mixed. A part of the fluid F is divided into a multi-divided state in the narrow flow paths Rs formed in parallel in the axial direction of the fluid A1, and the fluid F is integrally joined behind the mixed processing body A1. The five mixed processing bodies A1 are arranged at twisted positions along the first and second virtual lines K1 and K2 arranged in a double spiral shape. Therefore, the fluid F is sequentially led out as a spiral flow while being divided into five mixed processing bodies A1. As a result, the flow loss (pressure loss) of the fluid F is less likely to occur, the flow velocity of the fluid F passing through both sides of the mixed processing body A1 is increased, and the refinement efficiency of the dispersed phase is improved.

[Description of Configuration of Fluid Mixer as Second Embodiment]
B2 shown in FIGS. 11-13 is the fluid mixer as 2nd Embodiment which concerns on this embodiment. As shown in FIGS. 11 to 13, the fluid mixer B <b> 2 has the same basic structure as the fluid mixer B <b> 1 described above. The structure differs in that the upper and downstream swirl flow forming bodies 32 and 33 are disposed.

  The upstream swirl flow forming body 32 is disposed on the upstream side in the flow path forming case 20. On the other hand, the downstream swirl flow forming body 33 is disposed on the downstream side in the flow path forming case 20. And between the both swirl flow forming bodies 32, 33 in the flow path forming case 20, a plurality (in this embodiment, in the extending direction of the fluid flow path R (the axial direction of the flow path forming case 20) is provided. Five) mixed processing bodies A2 are arranged.

  More specifically, the mixed processing body A2 is fixed along the extending direction of the first and second imaginary lines K1, K2 drawn in the axial direction on the peripheral wall of the flow path forming case 20. Five pairs are arranged with an interval of. That is, on the inner peripheral surfaces of the first arrangement holes 34a, 34b to the fifth arrangement holes 38a, 38b, female screw portions (not shown) for screwing the mounting male screw portions 70d are respectively provided. Forming. In each of the arrangement holes 34a to 38b, the front end of the mixed processing body A2 is inserted from the outside to the inside of the flow path forming case 20, and a mounting male screw 70d is screwed into each female screw. Wear and cantilever.

  At this time, an O-ring 72 as a sealing material fitted to the outer peripheral surface of the O-ring fitting portion 70c is pressed into each of the arrangement holes 34a to 38b, and the head portion 70b with a concave portion for operation is provided from the outside. Locked. The pair of mixed processing bodies A2 and A2 whose axial lines face each other in the radial direction of the flow path forming case 20 are brought into surface contact with the ceiling portion 71a of the fitting covering piece 71 in a pressed state. That is, the pair of mixed processing bodies A2 and A2 are arranged in a straight shape and a transverse penetrating shape at a diameter position in the flow path forming case 20. The five pairs of the mixed processing bodies A1 are arranged at twisted positions along the first and second virtual lines K1 and K2. Around the head portion 70b with a concave portion for operation protruding outward from the flow path forming case 20 in the radial direction, a water stop material 40 is caulked (filled), and the respective arrangement holes 34a to 38b are formed outward. The fluid F flowing in the fluid flow path R is prevented from leaking out or flowing out of the flow path forming case 20 through the arrangement holes 34a to 38b.

  The upstream swirl flow forming body 32 and the downstream swirl flow forming body 33 are similarly formed of synthetic resin, and swirl flow forming blades 32b and 33b are provided on the outer peripheral surfaces of the support shafts 32a and 33a formed in a straight rod shape. It is swollen in a spiral and integrally molded. Both swirl flow forming bodies 32 and 33 are configured to form a swirl flow clockwise as viewed from the upstream side (left side in FIG. 5).

  In the flow path forming case 20, the upstream swirling flow forming body 32 is disposed between the distal end surface of the fitting portion 50 of the upstream connecting piece 22 and the pair of mixed processing bodies A2 and A2 disposed on the most upstream side. It is fixed in a pinched state. Further, the downstream swirl flow forming body 33 is formed between the distal end surface of the fitting portion 50 of the downstream connection piece 23 and the pair of mixed processing bodies A2 and A2 arranged on the most downstream side in the flow path forming case 20. It is fixed in a sandwiched state.

  In the fluid mixer B2 configured as described above, the introduced fluid F becomes a swirling flow by the upstream swirling flow forming body 32 and acts on the five pairs of the mixed processing bodies A2 and A2, and the downstream swirling flow forming body 33. Is derived with the swirl flow secured. At this time, since the fluid F acts on each pair of the mixed processing bodies A2 and A2 as a swirling flow having a larger flow velocity on the outer peripheral side than on the center side, the flow to the narrow channel Rs in each mixed processing body A2. A part of the fluid F flows smoothly. As a result, miniaturization of the dispersed phase of the fluid F and uniform mixing of the dispersed phase and the continuous phase are steadily achieved.

  Instead of the two pairs of mixed processing bodies A2 described above, the fluid mixer B2 has a set of three mixed processing bodies A2 as a modified example along the extending direction of the triple spiral virtual line, And the modification of fluid mixer B2 can also be comprised by arrange | positioning two or more sets at fixed intervals. Further, similarly to the fluid mixer B2, a modification example of the fluid mixer B1 is configured by disposing the upstream / downstream swirl forming bodies 32 and 33 in the flow path forming case 20 of the fluid mixer B1. You can also

[Description of configuration of gas-liquid mixing apparatus]
C shown in FIG. 14 is a gas-liquid mixing apparatus according to this embodiment. The gas-liquid mixing processing device C is one form of a fluid mixing processing device for mixing and processing different types of fluids. As shown in FIG. 14, the liquid as the fluid F and the gas as the fluid F are circulated through the circulation channel. A gas / liquid mixing process is performed while being circulated by a circulation pump Pa which is a pressure pump through J.

  In the circulation flow path J, a liquid storage tank T that stores liquid, a circulation pump Pa, and a fluid mixer B1 are sequentially arranged in series, and between the circulation pump Pa and the fluid mixer B1. In the fluid mixer B1 disposed on the downstream side of the gas supply unit Gf by connecting the gas supply unit Gf for supplying the gas to the portion of the circulation channel J located through the gas supply pipe Gp, Gas and liquid are mixed and processed. A gas supply amount adjustment valve V1 for adjusting the gas supply amount is provided in the middle of the gas supply pipe Gp. In the present embodiment, the fluid mixer B1 is adopted. However, instead of the fluid mixer B1, the modified example, the fluid mixer B2, or the modified example can be appropriately adopted.

  More specifically, the circulation channel J includes a suction pipe 1 having a base end connected to the suction port of the circulation pump Pa, and a base end connected to the discharge port of the circulation pump Pa, and a fluid in the middle part. The discharge pipe 2 provided with the mixer B1 and the liquid storage tank T are formed. A suction filter 3 is attached to the tip (free end) of the suction pipe 1, and the suction filter 3 is disposed in the liquid in the liquid storage tank T. On the other hand, a discharge filter 4 is attached to the distal end (free end) of the discharge pipe 2 and disposed in the liquid storage tank T. The discharge pipe 2 is formed of an introduction pipe 54 that introduces the fluid F into the fluid mixer B1 and a lead-out pipe 56 that derives the fluid F mixed from the fluid mixer B1. In addition, the fluid mixer B1 can be disposed so as to be immersed in the liquid stored in the liquid storage tank T with the outlet pipe 56 removed, and in this case, piping space and the like can be reduced. .

  Then, the liquid stored in the liquid storage tank T is sucked through the suction pipe 1 and discharged into the liquid storage tank T through the discharge pipe 2 by the circulation pump Pa, so that the liquid is stored in the liquid storage tank T. The liquid can be circulated through the circulation channel J. At this time, the fluid mixer B1 is disposed on the downstream side of the gas supply unit Gf connected to the middle part of the discharge pipe 2, and the fluid mixer B1 includes the gas supplied from the gas supply unit Gf. The liquid sucked from the liquid storage tank T is introduced (supplied). In the fluid mixer B1, the gas and the liquid are uniformly mixed, and the gas as the dispersed phase is refined and led out into the liquid storage tank T. As described above, the gas and the liquid are circulated through the circulation channel J a certain number of times or for a certain period of time, thereby miniaturizing the gas to the nano level and further uniformly mixing the gas and the liquid. Can do.

  The gas-liquid mixing processing apparatus C according to the present embodiment introduces aquaculture water as a liquid and oxygen gas as a gas into the selected fluid mixer B1, its modified example, the fluid mixer B2, or its modified example. Thus, the high concentration oxygen water Wo is configured to be generated. And it can also comprise so that the above-mentioned low concentration oxygen water, a high concentration carbonated spring, etc. may be produced | generated by changing the combination of the liquid and gas to introduce | transduce. In addition, the above-described emulsion fuel oil or the like may be generated by configuring a fluid mixing processing device that introduces a combination of other fluids F, that is, liquid and liquid, powder and liquid, and mixes them. it can.

[Description of the structure of the seafood aquaculture system]
Sy shown in FIG. 14 is a seafood aquaculture system according to this embodiment, and the seafood aquaculture system Sy aquacultures the above-described gas-liquid mixing processing device C and seafood (hereinafter also referred to as “breeding”). And an aquaculture tank Ft. The seafood aquaculture system Sy uses the gas-liquid mixing processing device C to refine the oxygen gas as a dispersed phase to a particle size including less than 1 μm and to uniformly mix with the aquaculture water as a continuous phase. The high concentration oxygen water Wo in which oxygen gas is dissolved in a supersaturated state is generated in the culture water, and the generated high concentration oxygen water Wo is supplied to the culture tank.

  Here, the aquaculture water is water, seawater, salt water or the like for culturing seafood. The solubility of oxygen has a correlation that it becomes smaller (difficult to dissolve) when the water temperature becomes higher, and the correlation between the amount of saturated dissolved oxygen in water and the water temperature is already known. Therefore, the dissolved oxygen saturation (%) is determined by measuring the dissolved oxygen (DO) concentration (dissolved oxygen amount) of the high-concentration oxygen water Wo at a predetermined water temperature, and calculating the dissolved oxygen amount as the saturated dissolved oxygen amount. The value obtained by dividing can be calculated by multiplying the divided value by 100. When the dissolved oxygen saturation (%) exceeds 100%, it is called supersaturation. In the seafood aquaculture system Sy of the present embodiment, the dissolved oxygen amount (DO value) of the high-concentration oxygen water Wo generated by the gas-liquid mixing apparatus C, that is, the high-concentration oxygen water Wo in which the oxygen gas is dissolved in a supersaturated state. As a suitable range, for example, the DO value can be adjusted to a range of 9 mg / L to 20 mg / L.

  The seafood aquaculture system Sy of this embodiment will be specifically described. The seafood aquaculture system Sy stores the aquaculture water in the liquid storage tank T of the gas-liquid mixing processing device C, and supplies the aquaculture water in the aquaculture water. The tip of the water supply flow path Ws to be replenished and the base end of the supply flow path Wf for supplying the high-concentration oxygen water Wo are immersed, and the upstream side of the water supply flow path Ws and the downstream side of the supply flow path Wf Are connected via a connection channel Cf.

  The water supply channel Ws is formed in the water supply pipe 5. The base end portion of the water supply pipe 5 is connected to a water supply portion Wh as a water supply source, while a water supply filter 6 is attached to the tip end portion of the water supply pipe 5 and the water supply filter 6 is disposed in the liquid storage tank T. Yes. A water supply pump Pb is disposed in the middle of the water supply pipe 5 so that the aquaculture water can be supplied from the water supply part Wh into the liquid storage tank T by the water supply pump Pb. The aquaculture water in the liquid storage tank T is mixed with oxygen gas by the gas-liquid mixing processing device C, and the oxygen gas is dissolved in a supersaturated state, that is, has a desired DO value. High concentration oxygen water Wo is used.

  The supply flow path Wf is formed in the supply pipe 7. A supply filter 8 is attached to the base end of the supply pipe 7 and the supply filter 8 is immersed in the high-concentration oxygen water Wo in the liquid storage tank T, while the distal end of the supply pipe 7 discharges the supply water. Connected to the drainage part Wd. In the middle of the supply pipe 7, a biological filtration device Bf, an aquaculture tank Ft, a sedimentation tank Dp, and a physical filtration device Pf are arranged in series from upstream to downstream. A supply pump Pc is disposed in the portion of the supply pipe 7 located on the upstream side of the biological filtration device Bf, and the high-concentration oxygen water Wo stored in the liquid storage tank T by the supply pump Pc is cultured in the culture tank. Ft can be supplied.

  The connection channel Cf is formed in the connection pipe 9. One end of the connection pipe 9 is connected to a portion of the supply pipe 7 located on the downstream side of the physical filtration device via the first three-way valve V2, while the other end of the connection pipe 9 is a water supply pump. It is connected to the portion of the water supply pipe 5 located upstream of Pb via a second three-way valve V3. Then, the supply pipe 7 and the connection pipe 9 are shut off via the first three-way valve V2 (to be in a non-communication state), so that the waste water discharged from the sedimentation tank Dp is led to the drainage section Wd. be able to. In addition, the supply pipe 7 and the connection pipe 9 are communicated with each other via the first three-way valve V2, and the connection pipe 9 and the water supply pipe 5 are communicated with each other via the second three-way valve V3. Can be recirculated so that a desired amount can be recirculated in the connection pipe 9 → the water supply pipe 5 → the liquid storage tank T. That is, the amount of water exchange in the liquid storage tank T can be adjusted as appropriate. Whether it is a non-recycling type or a recirculating type is selected according to the type of seafood to be cultivated.

  As described above, the gas-liquid mixing treatment apparatus C equipped in the seafood culture system Sy is aquaculture water by mixing oxygen gas into bubbles at the nano level (outer diameter is 1 μm or less) and mixing with the culture water. Then, high-concentration oxygen water Wo in which oxygen gas is dissolved in a supersaturated state is generated.

  More specifically, the gas-liquid mixing treatment apparatus C uses 90% or more of oxygen gas as a dispersed phase to form nano-level bubbles (bubbles having an outer diameter of 1 μm or less, preferably 100 nm or less; hereinafter “nano-bubbles”. It is also possible to mix them by making them uniform in aquaculture water. In the high-concentration oxygen water Wo generated by the gas-liquid mixing processing apparatus C, oxygen gas is dissolved in a supersaturated state. That is, the dissolved oxygen saturation of the high-concentration oxygen water Wo is set to a supersaturated state (for example, 140%) of 100% or more. The dissolved oxygen saturation of the high-concentration oxygen water Wo when supplied from the gas-liquid mixing apparatus C can be adjusted as appropriate. This adjustment is based on the amount of oxygen gas introduced into the gas-liquid mixing apparatus C. Is performed in accordance with the type, size, number of individuals, etc. of seafood to be cultivated in the aquaculture tank Ft. In addition, the water temperature of the high-concentration oxygen water Wo, which is the environmental condition of the fish and shellfish to be cultivated, is also detected appropriately to ensure a predetermined water temperature.

  The biological filtration device Bf is particularly required when the fish culture system Sy adopts a circulation system. In other words, the biological filtration device Bf is toxic to the ammonia of the highly toxic fishery products contained in the refluxed high-concentration oxygen water Wo via the nitrite by the action of nitrifying bacteria, which are aerobic bacteria. Biofiltration is performed to oxidize to low nitric acid. As a medium for nitrifying bacteria, an immersion filter medium is used. The size of the container of the biological filtration device Bf that performs the biological filtration treatment and the required amount of filter medium vary depending on the size and number of fish and shellfish cultivated in the aquaculture tank Ft. Therefore, the amount of nitrogen excreted by ammonia and the ammonia oxidation of the filter medium Design appropriately based on speed. In addition, oxygen gas is dissolved in a supersaturated state (for example, 120%) also in the high-concentration oxygen water Wo supplied (refluxed) to the aquaculture tank Ft after being subjected to biological filtration by the biological filtration device Bf. . The adjustment of the dissolved oxygen saturation of the high-concentration oxygen water Wo returned to the aquaculture tank Ft is performed by adjusting the dissolved oxygen saturation of the high-concentration oxygen water Wo when introduced from the gas-liquid mixing processing device C into the biological filtration device Bf in advance. It can be carried out by appropriately adjusting according to the type, size, number of individuals, etc. of the seafood bred in the aquaculture tank Ft.

  The aquaculture tank Ft is a water tank for cultivating seafood, and is formed by stretching a waterproof sheet such as a plastic sheet in a box shape with an upper surface opening. The culture tank Ft is supplied with the high-concentration oxygen water Wo from the upstream side of the supply flow path Wf so that a certain amount of the high-concentration oxygen water Wo is stored in the culture tank Ft. Then, a predetermined amount of high-concentration oxygen water Wo is always supplied from the upstream side of the supply flow path Wf to the culture tank Ft, and a predetermined amount of high-concentration oxygen water Wo is always overflowed from the culture tank Ft to supply the supply flow path Wf. It is made to discharge to the downstream side. That is, the predetermined amount of high-concentration oxygen water Wo is constantly replaced in the culture tank Ft. D1 is a first drainage channel, and the feces, residual food, drainage, etc. of the seafood when the bottom of the aquaculture tank Ft is cleaned can be discharged to a predetermined location outside the system through the first drainage channel D1.

  The sedimentation tank Dp introduces the high-concentration oxygen water Wo that flows out from the aquaculture tank Ft, and sinks and collects fish dung and residual food with a specific gravity greater than that of the high-concentration oxygen water Wo. The high-concentration oxygen water Wo as the treated water that has been collected and separated is allowed to flow out downstream of the supply flow path Wf.

  The physical filtration device Pf filters high-concentration oxygen water Wo as treated water that has flowed out of the precipitation tank Dp. The physical filtration device Pf is composed of a plastic net or a screen or a porous body or a metal net, a glass filter or the like. D2 is a second drainage channel, and the physical filtered product can be discharged to a predetermined location outside the system through the second drainage channel D2.

  In the seafood aquaculture system Sy configured as described above, the pumps Pa, Pb, Pc and the valves V1, V2, V3 can be appropriately controlled by a control device (not shown). By supplying dissolved oxygen supersaturated high-concentration oxygen water Wo suitable for the type, it is possible to achieve aquaculture with high growth efficiency of seafood. At this time, oxygen gas, which is a major factor for improving the growth efficiency of seafood, is dissolved in high-concentration oxygen water Wo in a supersaturated state. And oxygen gas is refined | miniaturized to the particle size containing less than 1 micrometer.

  Specifically, the oxygen gas particle size of the high-concentration oxygen water Wo generated by the gas-liquid mixing treatment apparatus C of the present embodiment is calculated using a nanoparticle analyzer “NanoSight (Nanosite) manufactured by Malvern (Malvern): When measured by “product name”, the mode diameter (mode) was 83.4 nm, and the average diameter was 136.0 nm. The DO value of the measured high concentration oxygen water Wo was 12 mg / L.

  The high-concentration oxygen water Wo has a synergistic effect between the oxygen nanobubbles refined to the nano level as described above and the high-concentration dissolved oxygen in which oxygen gas is dissolved in a supersaturated state. That is, oxygen nanobubbles are highly permeable to fish and shellfish, and have the property of being negatively charged, and therefore easily attach to sensory nerve sites that are positively charged. As a result, physiologically active effects such as blood flow promotion, growth promotion and adaptability improvement are expressed through stimulation of sensory nerves. On the other hand, it can be inferred that high-concentration dissolved oxygen also has the same effect as follows. That is, live fish and shellfish produce adenosine triphosphate (ATP) through aerobic glycolysis through respiration. Seafoods that live in high concentrations of dissolved oxygen will produce large amounts of ATP. ATP is a so-called energy storage material, and releases its energy by hydrolysis. Therefore, the fish and shellfish containing ATP at a high concentration have higher vitality, and the growth power, adaptability, and immunity against pathogenic bacteria are greater.

  In the seafood aquaculture system Sy, the aquaculture tank Ft filled with the high-concentration oxygen water Wo can be cultivated to efficiently grow from an initial stage in the growth process to a desired growth stage.

  As an example, an experiment was conducted in which flounder was cultivated (stock raising) using the seafood aquaculture system Sy configured as described above. High-concentration oxygen water Wo (mode diameter (mode value) of oxygen gas particle diameter) is 83.4 nm, average diameter is 136.0 nm, DO (dissolved oxygen) value is 12 mg / L) was supplied to the aquaculture tank Ft of the seafood aquaculture system Sy. Then, a test was conducted in which 90 caught natural flounder were subdivided into 30 each and cultivated (cultured) in the aquaculture tank Ft.

  As a result, during the short period of 60 days, the remaining 83 flounder increased in average weight by 2.66 times and average length by 1.37 times. From this, it was found that the seafood aquaculture system Sy of this embodiment is also effective for growing seafood in a short period of time.

[Explanation of seafood culture method]
In the seafood cultivation method according to the present embodiment, the fluid F is divided into two divided states in the fluid flow path R in which the fluid F composed of aquaculture water and oxygen gas flows, and a part of the divided fluid F is divided. By flowing in the flat narrow flow path Rs, the oxygen gas was refined to a particle size including less than 1 μm, and mixed uniformly with the aquaculture water, so that the oxygen gas was dissolved in a supersaturated state in the aquaculture water. The growth of seafood is promoted by culturing seafood in the high-concentration oxygen water Wo.

  More specifically, in the seafood aquaculture method, the gas-liquid mixing device C provided in the seafood aquaculture system Sy is equipped with the fluid mixer B1, its modification, the fluid mixer B2, or its modification. As a result, the oxygen gas is refined to the nano level and dissolved in the supersaturated state in the aquaculture water to produce the high concentration oxygen water Wo, and the high concentration oxygen water Wo is supplied to the aquaculture tank Ft provided in the seafood aquaculture system Sy. Supply and cultivate seafood in the aquaculture tank Ft.

  In the seafood culture method according to the present embodiment, since the seafood is cultivated with the high-concentration oxygen water Wo in which oxygen gas is refined to the nano level and dissolved in the culture water in a supersaturated state, You can grow a kind. In particular, it is possible to realize breeding (cultivation) capable of steadily increasing and growing the weight of the natural fish and shellfish that have been caught by 2.5 times or more in a short period of 2 to 3 months.

F Fluid R Fluid channel Rs Narrow channel A1 Mixed processing body as the first embodiment A2 Mixed processing body as the second embodiment B1 Fluid mixer as the first embodiment B2 Fluid mixer as the second embodiment Sy seafood aquaculture system Ft aquaculture tank

Claims (15)

  A mixed processing body configured such that a narrow flow path in which a part of fluid flows is formed in a fluid flow path by being arranged in a fluid flow path in which a plurality of different fluids to be mixed flow.   2. The mixed processing body according to claim 1, wherein a plurality of narrow channels are formed, and a fluid is divided into each of the plurality of narrow channels.   The mixed processing body according to claim 2, wherein the plurality of narrow flow paths are formed in parallel and arranged coaxially.   A mixing method that promotes fluid mixing processing by causing a part of the fluid to flow in a narrow channel in a fluid channel in which a plurality of different fluids to be mixed flows.   A fluid mixer comprising: a flow path forming case for forming a fluid flow path; and the mixing treatment body according to claim 1 disposed in the flow path forming case. A fluid mixer comprising: a flow path forming case for forming a fluid flow path; and the mixed processing body according to claim 3 disposed in the flow path forming case,
A fluid mixer in which a plurality of the above-mentioned mixing treatment bodies are disposed in a flow path forming case with the axis line in a direction intersecting the axial direction of the fluid flow path.   The fluid mixer according to claim 5 or 6, wherein a plurality of mixed processing bodies are arranged in series in the flow path forming case at intervals in the extending direction of the fluid flow path.   In the fluid mixer according to any one of claims 5 to 7, a liquid as a fluid and a liquid or gas as a fluid different from the liquid are introduced, and the liquid and the liquid in the fluid mixer, Or the fluid mixing processing apparatus comprised so that a liquid and gas might be mixed.   9. The fluid mixing apparatus according to claim 8, wherein water as a liquid and fuel oil as a liquid are mixed to produce an emulsion fuel oil.   The fluid mixing apparatus according to claim 8, wherein the liquid water and the nitrogen gas as a gas are mixed to generate nitrogen water in which nitrogen gas is dissolved in water.   The fluid mixing treatment apparatus according to claim 8, wherein hot water or water as a liquid and carbon dioxide gas as a gas are mixed to produce a carbonated spring in which carbon dioxide gas is dissolved in hot water or water.   9. The fluid mixing treatment apparatus according to claim 8, wherein water as a liquid and oxygen gas as a gas are mixed to generate oxygen water in which oxygen gas is dissolved in water.   13. The oxygen gas as a gas is refined and mixed with aquaculture water as a liquid uniformly to produce high-concentration oxygen water in which oxygen gas is dissolved in a supersaturated state in the culture water. Fluid mixing treatment device. A fluid mixing treatment device according to claim 13 and a culture tank for culturing seafood,
A seafood culture system in which the high-concentration oxygen water generated by the fluid mixing treatment device is supplied to a culture tank. A seafood culture method for promoting the growth of seafood by culturing seafood in high-concentration oxygen water generated by the fluid mixing treatment apparatus according to claim 13.