JPWO2018131714A1 - Fluid mixing apparatus and method for producing mixed fluid using such mixing apparatus - Google Patents

Abstract

An object of the present invention is to obtain a mixing device capable of reliably mixing a fluid including a first fluid and a second fluid, and a method for producing a mixed fluid using such a mixing device. The mixing apparatus 100 of the present invention is a gas-liquid GL mixing apparatus that includes a liquid L that is a first fluid and a gas G that is a second fluid, and the mixing apparatus 100 includes a first container, One container includes one or a plurality of first introduction portions 106b, a turbulent flow generation mechanism 1 that disturbs the flow of the fluid, and one or a plurality of first derivation portions 105b.

Description

  The present invention relates to a mixing device that mixes a fluid containing at least a first fluid and a second fluid, and a method for producing a mixed fluid using such a mixing device.

  Conventionally, there are various mixing devices that mix a fluid containing at least a first fluid and a second fluid. For example, Patent Document 1 discloses a mixing device that mixes a first fluid and a second fluid in a stirring vessel and stirs and mixes both fluids.

Japanese Utility Model Publication No. 61-97

  In the conventional mixing device, when the first fluid is mixed with the second fluid, the turbulent flow of the first fluid is insufficient, so the second fluid is not finely refined and the mixing is insufficient. There was a problem that there was.

  An object of the present invention is to obtain a mixing device capable of reliably mixing a fluid including a first fluid and a second fluid, and a method for producing a mixed fluid using such a mixing device.

  A fluid mixing device according to the present invention (a mixing device according to claim 1) is a fluid mixing device including a first fluid and a second fluid, the mixing device including a first container, One container includes one or a plurality of first introduction units, a turbulent flow generation mechanism that disturbs the flow of the fluid, and one or a plurality of first deriving units.

  In one embodiment of the present invention (mixing device according to claim 2), the mixing device according to claim 1, further comprising a second container, wherein the second container includes one or more second containers. You may provide the introducing | transducing part, the communicating member which connects the said 1st derivation | leading-out part and this 2nd introduction | transduction part, and one or several 2nd derivation | leading-out part.

  In one embodiment of the present invention (the mixing device according to claim 3), the communication member may include a plurality of communication pipes.

  In one embodiment of the present invention (mixing device according to claim 4), the plurality of communication pipes may be arranged at the same distance from the central axis of the first container and spaced from each other.

  In one embodiment of the present invention (the mixing device according to claim 5), the number of the communication pipes may be four to eight.

  In one embodiment of the present invention (the mixing device according to claim 6), the turbulent flow generation mechanism is provided in a swirl flow discharge portion that discharges the swirl flow of the fluid, and a discharge direction of the swirl flow discharge portion. And a baffle plate that receives the swirling flow of the fluid discharged from the swirling flow discharge section.

  In one embodiment of the present invention (the mixing device according to claim 7), the baffle plate is a flat disk, and the baffle plate is swung by the swirl flow while being swung. You may rotate so that a moving shaft may change to the circumferential direction of this baffle board.

  In one embodiment of the present invention (the mixing device according to claim 8), the turbulent flow generation mechanism pushes the fluid toward the first lead-out portion with respect to the fluid passing through the communication pipe. A force and a force for pulling back the fluid from the first derivation unit may be repeatedly applied.

  In one embodiment of the present invention (the mixing device according to claim 9), the first fluid may be a liquid, and the second fluid may be a gas or a liquid different from the first fluid. .

  In one embodiment of the present invention (mixing device according to claim 10), the mixing device according to any one of claims 1 to 9, further comprising a fluid mixing unit for mixing the fluid, The two or more fluids mixed in the fluid mixing unit may be introduced into the first container from the first introduction unit.

  In one embodiment of the present invention (the mixing device according to claim 11), the fluid derived from the first lead-out part of the first container or from the second lead-out part of the second container is accommodated. The third container further includes one or a plurality of third introduction parts, one or a plurality of third lead-out parts, and a swirling flow generating part that generates a swirling flow of the fluid. Also good.

  The fluid production method of the present invention (the production method according to claim 12) is a method for producing a mixed fluid of a first fluid and a second fluid, wherein the first fluid and the second fluid are claimed. And supplying the mixing device according to any one of 1 to 11 and mixing the first fluid and the second fluid by the mixing device.

  A mixing device capable of reliably mixing a fluid including at least the first fluid and the second fluid, and a mixed fluid manufacturing method using such a mixing device can be realized.

FIG. 1 is a view for explaining a microbubble generator 100 including a first bubble miniaturization unit 100b according to Embodiment 1 of the present invention. FIG. FIG. 1B shows a cross-sectional structure taken along the line A1-A1 of FIG. FIG. 2 is a diagram for explaining the first bubble refining unit 100b included in the fine bubble generating apparatus 100 shown in FIG. 1, and FIG. 2 (a) shows the first bubble refiner 100b shown in FIG. 1 (a). FIG. 2B shows the appearance of the turbulent flow generation mechanism 1 included in the first bubble miniaturization unit 100b, and FIG. 2C shows the operating state. The external appearance of the turbulent flow generation mechanism 1 is shown. FIG. 3 is a view for explaining the baffle plate 1a and the swirl flow discharge nozzle 1c included in the turbulent flow generation mechanism 1 shown in FIG. 2, and FIG. 3 (a) shows the cross-sectional structure of the baffle plate 1a. 3 (b) shows the front structure of the baffle plate 1a, FIG. 3 (c) shows the cross-sectional structure of the swirl flow discharge nozzle 1c, and FIG. 3 (d) shows the swirl flow discharge nozzle 1c. The structure of the front of is shown. FIG. 4 is a diagram for explaining the turbulent flow generation unit 20b included in the first bubble miniaturization unit 100b shown in FIG. 2, and FIG. 4 (a) shows the appearance of the turbulent flow generation unit 20b. FIG. 4B shows the structure of the turbulent flow generation unit 20b as viewed from the A4 direction in FIG. 4A, and FIG. 4C shows the turbulent flow generation unit 20b shown in FIG. 4 (d) and 4 (e) show the structures of the upper and lower surfaces of the upper flange 105 of the turbulent flow generation portion 20b, and FIGS. 4 (f) and 4 (g) show the turbulent flow generation. The structure of the upper surface and lower surface of the lower flange 106 of the part 20b is shown. FIG. 5 is a diagram for explaining the fluid storage unit 10b included in the first bubble miniaturization unit 100b shown in FIG. 2. FIG. 5 (a) shows the appearance of the fluid storage unit 10b. (B) shows the structure of the fluid reservoir 10b viewed from the A5 direction in FIG. 5 (a), FIG. 5 (c) shows the fluid reservoir 10b shown in FIG. 5 (d) and FIG. 5 (e) show the structures of the upper and lower surfaces of the upper flange 101 of the fluid reservoir 10b, and FIGS. 5 (f) and 5 (g) show the lower flange 102 of the fluid reservoir 10b. The structure of the upper surface and lower surface of is shown. FIG. 6 is a diagram for explaining the bubble generation unit 100a included in the fine bubble generation device 100 shown in FIG. 1, and FIG. 6 (a) shows an appearance and a partial cross section of the bubble generation unit 100a. 6 (b) shows a cross-sectional structure taken along the line A6-A6 of FIG. 6 (a), FIG. 6 (c) shows the structure of the inner flange 12b of the bubble generating unit 100a, and FIG. FIG. 6E shows the structure of the swivel guide member 13 of the bubble generation unit 100a, and FIG. 6E shows the structure of the swivel guide member 13 viewed from the direction D6 in FIG. FIG. 7 is a view for explaining the operation of the fine bubble generating device 100 shown in FIG. 1. FIG. 7 (a) shows the first fluid (water) and the second fluid (in the fine bubble generating device 100). FIG. 7B shows a change in the posture of the baffle plate 1a when the turbulent flow generation mechanism 1 changes from the stopped state to the operating state. FIG. 8 is a diagram for explaining the oscillation (resonance operation) of the baffle plate 1a of the turbulent flow generation mechanism 1 shown in FIG. 7B. FIGS. 8A and 8B are diagrams showing baffles. It is the perspective view and top view which show the mode in each rotation position S1-S4 which the board 1a rotates, rocking | fluctuating. FIG. 9 is a view for explaining a microbubble generator 1000 including a second bubble miniaturization unit 300 according to Embodiment 2 of the present invention. FIG. 10 is a diagram for explaining the second bubble miniaturization unit 300, FIG. 10 (a) shows the appearance of the second bubble miniaturization 300, and FIG. 10 (b) shows FIG. FIG. 10C shows a cross-sectional structure of the cross section along line A-10-A10 in FIG. 10A, and FIG. 10C shows the A11 dotted line frame part in FIG. FIG. 11 is a diagram for explaining components of the second bubble refinement unit 300 shown in FIG. 10B, and FIG. 11A is an outer cylindrical body of the second bubble refinement unit 300. FIG. 11B shows the inner columnar body 320 constituting the second bubble refinement unit 300.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the embodiment of the present invention, in mixing the liquid that is the first fluid and the gas that is the second fluid, the gas is refined by mixing the gas with the liquid that has generated turbulent flow, and fine bubbles are generated. However, the present invention is not limited to this. For example, the first fluid may be a fluid containing a liquid, the second fluid may be a fluid containing a liquid of a type different from the liquid of the first fluid, the fluid containing a gas as the first fluid, The fluid may be a fluid containing a different type of gas from the fluid containing the first fluid gas as the two fluids. In the case where a fluid containing a liquid as the first fluid and a fluid containing a gas as the second fluid are not used, the microbubble generator of the present specification is a mixing device that mixes the fluid containing the first fluid and the second fluid. The bubble generating unit constitutes a fluid mixing unit. In the present specification, “fine bubbles” is a general term for commonly called microbubbles and nanobubbles, and generally means bubbles having a diameter of 50 μm or less. In this specification, “about” indicates a range of plus or minus 10%.

  The type of fluid to be mixed can be arbitrary. For example, when the fluid is a gas, it may be air, oxygen, carbon dioxide, or ozone gas. For example, when the fluid is a liquid, it may be water, oil, a solvent such as toluene or acetone, a chemical such as a flocculant, or sludge. It may be environmental water such as septic tank contaminated water containing solid matter.

  FIG. 1 is a view for explaining a microbubble device 100 including a bubble miniaturizing unit 100b according to Embodiment 1 of the present invention. FIG. 1 (a) shows an appearance of the microbubble device 100, and FIG. b) shows a cross-sectional structure taken along line A1-A1 of FIG.

  The fine bubble generating apparatus 100 according to the first embodiment mixes a gas L (for example, air) that is a second fluid into a liquid L (for example, water) that is an introduced first fluid, and includes a gas-liquid (including bubbles). This is a microbubble generator that generates a mixed fluid and a microbubble. In the embodiment shown in FIG. 1, the case where the fluid to be mixed is a liquid (for example, water) and a gas (for example, air) is described, but the present invention is not limited to this.

  This fine bubble generating apparatus 100 includes a bubble generation unit 100a that mixes liquid L and gas G to generate gas-liquid GL, and a bubble refinement unit 100b that further refines the fine bubbles contained in gas-liquid GL. I have.

  Here, the bubble generation unit 100a is mounted on the gantry 110, and the bubble refinement unit 100b is mounted on the bubble generation unit 100a. The gantry 110 includes a support flange 112 that supports the bubble generation unit 100 a and a gantry leg 111 that extends downward from the support flange 112. A first fluid introduction pipe 121 is attached to the support flange 112 via a first fluid introduction joint 112a.

[Bubble miniaturization part 100b]
Hereinafter, the bubble miniaturization part 100b will be described in detail.

  FIG. 2 is a diagram for explaining the bubble refinement unit 100b included in the microbubble generator 100 shown in FIG. 1, and FIG. 2 (a) is a diagram of the bubble refinement unit 100b shown in FIG. 1 (a). FIG. 2B shows the appearance of the turbulent flow generation mechanism 1 included in the bubble miniaturization unit 100b, and FIG. 2C shows the appearance of the turbulent flow generation mechanism 1 in the operating state. Show.

  As shown in FIG. 2A, the bubble miniaturization unit 100b has a flow path GLp for flowing the gas-liquid GL. The flow path GLp includes an upstream flow path part GLp2 and an intermediate flow path part GLp3. Moreover, the downstream flow path part GLp1 may be included. Here, the upstream-side flow path part GLp2 disturbs the flow of the gas-liquid GL that is generated by the bubble generation part 100a and flows through the flow path GLp to generate a turbulent flow of the gas-liquid GL (first container) ) 20b. The intermediate flow path part GLp3 is a connecting part 30b that connects the downstream flow path part GLp1 and the upstream flow path part GLp2. The downstream flow path part GLp1 is a fluid storage part (second container) 10b that temporarily stores the gas-liquid GL discharged from the intermediate flow path part GLp3.

[Turbulent flow generator 20b]
Here, the turbulent flow generation unit 20b can take any generation mechanism capable of generating a turbulent flow. For example, a piston mechanism or a swirl flow generating mechanism such as a blade may be used.

  In a preferred embodiment, as shown in FIG. 2 (a), with respect to the gas-liquid GL passing through the flow path GLp3, the force that pushes the gas-liquid GL to the downstream flow path section GLp1, and the gas-liquid GL to the upstream side This is a turbulent flow generation mechanism 1 that generates a turbulent flow of gas-liquid GL by repeatedly applying a force to pull back to the flow path part GLp2. In a preferred embodiment, the turbulent flow generating mechanism 1 sprays a baffle plate 1a that is a flat disk and a gas-liquid GL that is a spiral swirl flow on the baffle plate 1a, as shown in FIG. 2B. And a swirl flow discharge nozzle 1c. Furthermore, you may have the baffle control body 1b which controls the movement range of the baffle board 1a within a fixed range.

  FIG. 3 is a view for explaining the baffle plate 1a and the swirl flow discharge nozzle 1c which is a swirl flow discharge unit included in the turbulent flow generation mechanism 1 shown in FIG. 2, and FIG. FIG. 3B shows the front structure of the baffle plate 1a, FIG. 3C shows the cross-sectional structure of the swirling flow discharge nozzle 1c, and FIG. The structure of the front of the swirl flow discharge nozzle 1c is shown. In the embodiment shown in FIG. 3, the case where the swirling flow discharge unit is a nozzle is described, but the present invention is not limited to this. For example, it may be a discharge pipe that discharges a swirling flow.

  As shown in FIGS. 3 (a) and 3 (b), the baffle plate 1a is a thin flat disk. The material of the baffle plate 1a can be any material. For example, it may be a plastic or a metal such as aluminum or iron (stainless).

  The thickness and weight of the baffle plate 1a can be adjusted to an arbitrary thickness and weight depending on the required discharge amount of the gas-liquid GL and the size of the fine bubbles. Generally, if the thickness of the baffle plate 1a is reduced by using a thin material or a light material, the baffle plate 1a swings and rotates faster, so that the bubbles contained in the gas-liquid GL are made finer. And can increase the ability to mix. For example, in one specific embodiment, the thickness of the baffle plate 1a is about 5 mm and the weight is about 400 g under the condition that the discharge amount of the gas-liquid GL is about 300 L / min. Is not limited to this.

  The shape of the baffle plate can be any shape. In the embodiment shown in FIG. 3, the baffle plate 1a is a disc, but the present invention is not limited to this. For example, a triangular plate, a square plate, or a polygonal plate may be used. The outer diameter B1 of the baffle plate 1a can take any size as long as it can receive the swirling flow ejected from the swirling flow discharge nozzle 1c. If the outer diameter B1 of the baffle plate 1a is too small, the portion that receives the swirling flow becomes small, the swinging and rotating movement of the baffle plate 1a is suppressed, and the function of generating turbulent flow is impaired. Further, even if the outer diameter B1 of the baffle plate 1a becomes too large, the swinging and rotating movements of the baffle plate 1a due to the swirling flow are suppressed, so that the function of generating turbulent flow is impaired. In a preferred embodiment of the present invention, the shape of the baffle plate 1a may be a circle that can receive the swirl flow most efficiently. In a preferred embodiment, the outer diameter B1 of the baffle 1a is about 3 times to about 5 times the nozzle inner diameter C1 of the swirl flow discharge nozzle 1c, but the present invention is not limited to this. In a specific embodiment, the outer diameter B1 of the baffle 1a is about 100 mm to about 150 mm, but is not limited thereto.

  The size B2 of the opening of the baffle plate 1a can take any size within a range in which the swirl flow ejected from the swirl flow discharge nozzle 1c is received and the baffle regulating body 1b can be inserted.

  If the opening B2 of the baffle plate 1a is too large, the portion that receives the swirling flow becomes small, the swinging and rotating motion of the baffle plate 1a is suppressed, and the function of generating turbulent flow is impaired. Further, if the opening B2 of the baffle plate 1a is too small, the gap with the outer diameter of the baffle restricting body 1b becomes too small, and the movement of the baffle plate 1a is restrained from swinging and rotating, thereby generating a turbulent flow. Is damaged. In a preferred embodiment, the inner diameter of the opening B2 is larger than the outer diameter of the baffle regulating body 1b and smaller than the size C1 of the swirling flow ejection portion of the swirling flow discharge nozzle 1c. In a specific embodiment, the inner diameter of the opening B2 is about 15 mm to about 25 mm, but the present invention is not limited to this.

  As shown in FIGS. 3C and 3D, the swirl flow discharge nozzle 1c has a swirl flow ejection portion having a size C1. The size C1 of the swirling flow ejection portion may be any size according to the swirling flow ejection pressure and the ejection amount. For example, in one specific embodiment, under the condition that the supply pressure of the liquid L is about 0.26 MPa and the discharge amount of the gas-liquid GL is 300 L / min, the size C1 of the swirling flow ejection portion is about 20 mm to φ Although it is about 30 mm, this invention is not limited to this. For the intended swing and rotation of the baffle plate 1a, the supply pressure of the liquid L is preferably about 0.05 MPa or more. The shape of the swirl jet part can be arbitrary. In the embodiment shown in FIG. 3, the case of a circular opening is described, but the present invention is not limited to this. For example, it may be a triangular opening, a rectangular opening, or a polygonal opening.

  The swirl discharge nozzle 1c has a taper portion having a taper angle C2. The taper angle C2 is adjusted so that the swirling flow strikes the baffle plate 1a so that the inclination of the baffle plate 1a transitions in the circumferential direction of the baffle plate 1a. Even if the taper angle C2 is too small or too large, the baffle plate 1a does not operate so that the inclination of the baffle plate 1a transitions in the circumferential direction of the baffle plate 1a. In a specific embodiment, the taper angle C2 is about 30 to about 50 degrees, more preferably about 40 to about 45 degrees.

The taper diameter C3 of the taper portion is adjusted so that the swirling flow strikes the baffle plate 1a so that the inclination of the baffle plate 1a transitions in the circumferential direction of the baffle plate 1a. If the taper diameter C3 is too small or too large, the swinging and rotating movement of the baffle plate 1a cannot be realized. In a preferred embodiment, the taper diameter C3 may be about 1/4 to about 3/4 of the outer diameter B1 of the baffle plate 1a, particularly preferably about 1/2. In a specific embodiment, the taper diameter C3 is about 5
Although it is 0 to about 75 mm, this invention is not limited to this.

  The height C4 of the swirl flow discharge nozzle 1c may be an arbitrary height. In a specific embodiment, from about 25 mm to about 40 mm, the invention is not so limited.

  FIG. 4 is a diagram for explaining the turbulent flow generation unit 20b included in the bubble miniaturization unit 100b shown in FIG. 2. FIG. 4 (a) shows the appearance of the turbulent flow generation unit 20b, and FIG. b) shows the structure of the turbulent flow generation unit 20b as viewed from the A4 direction in FIG. 4A, FIG. 4C shows the turbulent flow generation unit 20b shown in FIG. 4 (d) and 4 (e) show the structures of the upper and lower surfaces of the upper flange 105 of the turbulent flow generation unit 20b, and FIGS. 4 (f) and 4 (g) show the turbulent flow generation unit 20b. The structure of the upper surface and lower surface of the lower flange 106 is shown.

  The turbulent flow generating portion 20b forms a first container, and as shown in FIG. 4A, a cylindrical body 107 having an outer cylindrical shape, and disk-shaped upper flanges disposed at both ends of the cylindrical body 107 105 and a lower flange 106, and fixing posts 108 for fixing the flanges 105 and 106 and the cylindrical body 107. As shown in FIG. 4C, the fixed column 108 includes a column main body 108c and screw portions (column screw portions) 108d and 108e formed on both sides of the column main body 108c, and the column screw portions 108d and 108e. Are fitted with nuts 108a and 108b.

  In the embodiment shown in FIG. 4, the case where the first container is a cylindrical tube is described, but the present invention is not limited to this. The first container can be any cylindrical body. For example, it may be a quadrangular prism, a triangular prism, or a polygonal prism.

  Here, as shown in FIG. 4G, a first fluid introduction opening 106b serving as a first introduction part of the gas-liquid GL from the bubble generating part 100a is formed at the approximate center of the lower flange 106, and the lower flange is formed. A column insertion hole 106a for inserting the screw portion 108e of the fixed column 108 is formed around the region 106 at regular intervals. In the embodiment shown in FIG. 4A, the number of the first fluid introduction opening 106b that is the first introduction portion is one, but the present invention is not limited to this. A plurality of first fluid introduction openings 106b may be provided.

  As shown in FIG. 4F, a circular groove 106d for accommodating the lower end edge of the cylindrical body 107 is formed on the upper surface of the lower flange 106 in contact with the cylindrical body 107. A sealing material (not shown) for preventing the gas-liquid GL from leaking is embedded in 106d. For example, a ring-shaped rubber packing is used as the seal material, but the seal material is not limited thereto.

  Further, a swirl flow discharge nozzle 1c constituting the turbulent flow generation mechanism 1 is attached to the center of the upper surface of the lower flange 106 so as to overlap the first fluid introduction opening 106b, and the gas-liquid introduced from the fluid introduction opening 106b. The swirling flow of GL is blown out from the swirling flow discharge nozzle 1c into the cylindrical body 107.

  The upper end portion of the cylindrical body 14 is fixed to the lower surface of the lower flange 106 by welding or the like so that the outer truncated cone-shaped cylindrical body 14 overlaps the first fluid introduction opening 106b.

  Further, as shown in FIG. 4 (d), a second fluid introduction opening 105c, which is a first introduction portion for introducing a second fluid (gas), is formed in the central portion of the upper flange 105, One end of the second fluid introduction pipe 32 is connected to the second fluid introduction opening 105c. Around the upper flange 105, column insertion holes 105a for inserting the screw portions 108d of the fixed column 108 are formed at regular intervals. In the embodiment shown in FIG. 4, there is one second fluid introduction opening 105 c serving as the first introduction part, but the present invention is not limited to this. For example, a plurality of them may be provided, or the second fluid introduction opening 105c may not be provided, and the second fluid may be introduced together with the first fluid from the first fluid introduction opening 106b.

  As shown in FIG. 4E, a circular groove 105d for accommodating the upper end edge of the cylindrical body 107 is formed on the lower surface of the upper flange 105 in contact with the cylindrical body 107. A seal material (not shown) for preventing the gas-liquid GL from leaking is embedded in 105d. A fluid outlet 105b, which is a first outlet for allowing the gas / liquid GL to flow out from the turbulent flow generator 20b to the connecting pipe 31, is provided in a portion of the upper flange 105 located inside the circular groove 105d. . One end of a connecting pipe 31 constituting the connecting portion 30b is connected to the fluid outlet 105b. In the embodiment shown in FIG. 4, a plurality of fluid outlets 105b (first derivation units) are provided, but the present invention is not limited to this. For example, the number of the fluid outlet 105b (first derivation unit) may be one.

  Any number of fluid outlets (first outlets) 105b can be installed at any position and in any size as long as the gas-liquid GL can flow out to the connecting pipe 30b.

  In a preferred embodiment, as shown in FIG. 4, it is provided as close to the circular groove 105d as possible, that is, on the outer peripheral side of the first container. Since the pressure of the gas-liquid GL due to the movement of the baffle plate 1a is higher on the outer peripheral side of the first container, by providing the fluid outlet (first outlet) 105b in the vicinity thereof, the inside of the gas-liquid GL can be efficiently obtained. The bubbles contained in can be refined. Further, by providing the fluid outlet 105b (first outlet) on the outer peripheral side of the first container in this way, turbulent flow is generated in the gas-liquid GL containing bubbles that tend to stay in the corners of the first container. Therefore, the turbulent flow promotes the miniaturization of the bubbles in the gas-liquid GL. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  The size (cross-sectional area) of the fluid outlet 105b (first outlet) is preferably small because the flow velocity and water pressure are not increased and turbulent flow is insufficient. However, if it is too small, the discharge amount is limited. Is done. In a preferred embodiment, the size (cross-sectional area) of the fluid outlet 105b (first outlet) is about 1.5 to about 3 times the cross-sectional area of the swirl jet portion of the swirl discharge nozzle 1c. . If it is determined how far away from the central axis of the first container the fluid outlet 105b (first outlet) is to be installed, the fluid outlet 105b (first outlet) of the fluid outlet 105b is determined based on the above conditions. Although a diameter and a number can be set, this invention is not limited to this.

  In a preferred embodiment, as shown in FIG. 4, a plurality of fluid outlets (first outlets) 105 b are provided at the same distance from the central axis of the first container and spaced from each other. By providing a plurality of fluid outlets (first outlets) 105b, the number of places where turbulent flow increases, and the turbulent flow facilitates the refinement of bubbles in the gas-liquid GL. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  In the embodiment shown in FIG. 4, a case has been described in which the intervals between the adjacent fluid outlets (first derivation portions) 105b are in a state of being spaced by a certain distance, but the present invention is limited to this. Not. For example, the intervals between the adjacent fluid outlets (first derivation portions) 105b may be different. In the embodiment shown in FIG. 4, the case where six fluid outlets (first outlets) 105b and six communication pipes 31 are provided has been described, but the present invention is not limited to this. In a preferred embodiment, the fluid outlet (first outlet) 105b has 4 to 8 and the communication pipe 31 has 4 to 8, but the present invention is not limited to this.

  Since the inner diameter of the fluid outlet (first outlet) 105b is smaller than the inner diameter of the first container, the flow rate of the gas-liquid GL flowing out from the fluid outlet (first outlet) 105b to the connecting pipe 31 is the first container. Since the turbulent flow is faster than the flow velocity of the gas-liquid GL flowing through the inside, the refinement of the bubbles in the gas-liquid GL is promoted in the connecting pipe 31. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  A baffle regulating body 1b constituting the turbulent flow generation mechanism 1 is attached to the center of the lower surface of the upper flange 105 so as to overlap the second fluid introduction opening 105c. The lower end portion 1b1 of the baffle regulating body 1b extends downward to a position where it slightly enters the discharge port 1c1 of the swirl flow discharge nozzle 1c through the central opening 1a1 of the baffle plate 1a, and the movement range of the baffle plate 1a is baffled. It is regulated by the regulation body 1b. A passage 1b2 for introducing the second fluid (gas) into the bubble generation unit 100a is formed at a substantially central portion of the baffle regulating body 1b. In the embodiment shown in FIG. 4, the case where one passage 1b2 for introducing the second fluid (gas) is provided in the substantially central portion of the baffle regulating body 1b is described, but the present invention is not limited to this. The passage 1b2 for introducing the second fluid (gas) may be provided separately from the baffle regulating body 1b, or a plurality of passages may be provided.

[Fluid reservoir 10b (second container)]
FIG. 5 is a view for explaining a fluid storage part (second container) 10b included in the bubble miniaturization part 100b shown in FIG. 2, and FIG. 5 (a) shows the fluid storage part (second container) 10b. 5 (b) shows the structure of the fluid reservoir (second container) 10b viewed from the direction A5 in FIG. 5 (a), and FIG. 5 (c) shows the structure of FIG. 5 (a). FIG. 5 (d) and FIG. 5 (e) show the structures of the upper surface and the lower surface of the upper flange 101 of the fluid storage unit (second container) 10b. FIGS. 5 (f) and 5 (g) show the structures of the upper and lower surfaces of the lower flange 102 of the fluid storage section (second container) 10b.

  As shown in FIG. 5A, the fluid reservoir 10b constituting the second container includes a cylindrical body 103 having an outer cylindrical shape, and disk-shaped upper flanges 101 disposed at both ends of the cylindrical body 103, and It has a lower flange 102 and a fixing column 104 for fixing the flanges 101 and 102 and the cylindrical body 103. As shown in FIG. 5C, the fixed column 104 includes a column main body 104c and screw portions (column screw portions) 104d and 104e formed on both sides of the column main body 104c, and the column screw portions 104d and 104e. Are fitted with nuts 104a and 104b. In the embodiment shown in FIG. 5, the case where the second container is a cylindrical tube is described, but the present invention is not limited to this. The second container can be any cylindrical body. For example, it may be a quadrangular prism, a triangular prism, or a polygonal prism.

  Here, as shown in FIG. 5G, column support holes 102 a for inserting the screw portions 104 e of the fixed column 104 are formed around the lower flange 102 at regular intervals.

  A circular groove 102c for accommodating the lower end edge of the cylindrical body 103 is formed on the upper surface of the lower flange 102 in contact with the cylindrical body 103, as shown in FIG. A sealing material (not shown) for preventing leakage of the gas-liquid GL is embedded in 102c. For example, a ring-shaped rubber packing is used as the sealing material, but the present invention is not limited to this.

  A fluid inflow port 102b, which is a second introduction portion, is provided in a portion of the lower flange 102 located inside the circular groove 102c. The fluid inflow port (second introduction part) 102b can be installed in an arbitrary size and an arbitrary number in an arbitrary position as long as the gas-liquid GL can efficiently flow into the fluid storage part 10b. .

  In a preferred embodiment, as shown in FIG. 5, the fluid inlet (second introduction portion) 102b is provided as close to the circular groove 102c as possible, that is, on the outer peripheral side of the second container. Since the pressure of the gas-liquid GL due to the movement of the baffle plate 1a is higher on the outer peripheral side of the second container, by providing the fluid inlet (second introduction part) 102b in the vicinity thereof, the inside of the gas-liquid GL can be efficiently The bubbles contained in can be refined. Further, by providing the fluid inlet (second introduction part) 102b on the outer peripheral side of the second container in this way, turbulent flow is generated in the gas-liquid GL containing bubbles that tend to stay in the corners of the second container. Therefore, the turbulent flow promotes the miniaturization of the bubbles in the gas-liquid GL. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  If the fluid inlet (second introduction part) 102b has a large size (cross-sectional area), the flow velocity and water pressure cannot be increased and turbulent flow is insufficient. Is done. In a preferred embodiment, the size (cross-sectional area) of the fluid inlet (second introduction portion) 102b is about 1.5 times to about 3 times the cross-sectional area of the swirling flow ejection portion of the swirling flow discharge nozzle 1c. However, the present invention is not limited to this. If it is determined how far away from the central axis of the second container the fluid inlet (second inlet) 102b is to be installed, the fluid inlet (second inlet) 102b of the fluid inlet (second inlet) 102b is determined based on the above conditions. Although a diameter and a number can be set, this invention is not limited to this.

  In a preferred embodiment, as shown in FIG. 5, a plurality of fluid inflow ports (second introduction parts) 102b are formed at the same distance from the central axis of the fluid storage part (second container) 10b and spaced apart from each other. ing. The other end of the connecting pipe 31 constituting the connecting portion 30b is connected to the fluid inflow port (second introducing portion) 102b. Also, by providing a plurality of fluid inlets (second introduction portions) 102b, the number of places where turbulent flow increases, and the turbulent flow facilitates the refinement of bubbles in the gas-liquid GL. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  In the embodiment shown in FIG. 5, the case where six fluid inlets (second introduction parts) 102b are provided has been described, but the present invention is not limited to this. In the preferred embodiment, the number of fluid inlets (second introduction parts) 102b is 4 to 8, which is the same number as the communication pipe 31, but the present invention is not limited to this.

  Compared with the gas-liquid GL that passes through the communication pipe 31 from the first container by the turbulent flow generation mechanism 1, the flow velocity is faster when the gas-liquid GL passes through the connection pipe 31 by the force that pushes the gas-liquid GL from the first container to the first outlet. When the gas / liquid GL is introduced into the second container, the gas / liquid GL is actively mixed with the other gas / liquid GL existing in the second container. At that time, the generation of turbulent flow promotes the miniaturization of bubbles in the gas-liquid GL. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  Further, as shown in FIG. 5A, a fluid discharge joint 101a for discharging gas and liquid is attached to the center portion of the upper flange 101, and the fluid discharge joint 101a is a second lead-out portion. A fluid discharge pipe (second derivation unit) 122 is connected. Around the upper flange 101, column insertion holes 101b for inserting the screw portions 104d of the fixed column 104 are formed at regular intervals. In the embodiment shown in FIG. 5, there is one fluid discharge pipe (second derivation unit) 122, but the present invention is not limited to this. A plurality of them may be provided.

  A circular groove 101d for accommodating the upper edge of the cylindrical body 103 is formed on the lower surface of the upper flange 101 in contact with the cylindrical body 103, as shown in FIG. A sealing material (not shown) for preventing the gas-liquid GL from leaking is embedded in 101d.

[Bubble generator 100a]
FIG. 6 is a diagram for explaining the bubble generation unit 100a included in the fine bubble generation device 100 shown in FIG. 1, and FIG. 6 (a) shows an appearance and a partial cross section of the bubble generation unit 100a. 6 (b) shows a cross-sectional structure taken along the line A6-A6 of FIG. 6 (a), FIG. 6 (c) shows the structure of the inner flange 12b of the bubble generating unit 100a, and FIG. FIG. 6E shows the structure of the swivel guide member 13 of the bubble generation unit 100a, and FIG. 6E shows the structure of the swivel guide member 13 viewed from the direction D6 in FIG.

  As shown in FIG. 6A, the bubble generation unit 100a has developed a swirl flow generation unit 10a that generates a swirl flow of the liquid L, and a swirl flow development unit 20a that develops the swirl flow of the generated liquid L. And a swirl flow acceleration unit 30a that accelerates the swirl speed of the swirl flow of the liquid L.

  Hereinafter, the structure of the bubble generation unit 100a will be described in detail.

  The bubble generation unit 100 a includes a cylindrical outer cylindrical body 11, a cylindrical inner cylindrical body 12 disposed inside the outer cylindrical body 11, and an inner side attached to the lower end surface of the inner cylindrical body 12. And a flange 12b. Here, the central axis of the outer cylindrical body 11 substantially coincides with the central axis of the inner cylindrical body 12.

  A turning guide member 13 for turning the liquid L (fluid) introduced into the outer cylindrical body 11 is attached to the inner flange 12b. As shown in FIGS. 6D and 6E, the turning guide member 13 includes a blade flange 13a attached to the inner flange 12b with bolts and nuts (not shown), and welding to the blade flange 13a. And a fixed blade body 13b. In the figure, 12b1 is a bolt insertion hole formed in the inner flange 12b, and 13a1 is a bolt insertion hole formed in the blade flange 13a. The area | region where the turning guide member 13 in the outer side cylindrical body 11 is arrange | positioned becomes the turning flow generation | occurrence | production part 10a.

  In the bubble generation unit 100a, the region between the outer cylindrical body 11 and the inner cylindrical body 12 has a liquid L (fluid) introduced into the outer cylindrical body 11 as shown in FIG. When the liquid L (fluid) passing through this flow path enters the inner cylindrical body 12 from the side wall opening 12a formed in the side wall of the inner cylindrical body 12, the liquid L ( The rotation of the swirling flow of the fluid (fluid) is reversed, and the flow velocity of the swirling flow of the liquid (fluid) is increased. The area | region where the inner side cylindrical body 12 in the outer side cylindrical body 11 is arrange | positioned becomes the rotational flow development part 20a.

  In the bubble generation unit 100a, an outer diameter truncated cone-shaped cylindrical body 14 is disposed at the upper end of the inner cylindrical body 12, and the swirling flow of the liquid L that has entered the inner cylindrical body 12 is the cylindrical body. When entering 14, the swirling speed of the swirling flow is accelerated at a stretch. A region in the cylindrical body 14 having an outer diameter frustoconical shape is a swirling flow acceleration unit 30a.

  Next, the operation of the fine bubble generator 100 according to the first embodiment will be described.

  FIG. 7 is a diagram for explaining the operation of the fine bubble generating device 100 shown in FIG. 1, and FIG. 7 (a) shows the liquid L (water) and the gas G (air) in the fine bubble generating device 100. FIG. 7B shows a change in the posture of the baffle plate 1a when the turbulent flow generation mechanism 1 changes from the stopped state to the operating state.

  When the liquid L pumped by a pumping unit (not shown) is introduced into the outer cylindrical body 11 of the bubble generating unit 100a through the first fluid introduction pipe 121, the swirl flow generating unit 10a in the outer cylindrical body 11 The introduced liquid L turns in the direction guided by the blade body 13b of the turning guide member 13. Further, the swirling flow of the liquid L reaches the swirling flow developing portion 20a, and while flowing between the outer cylindrical body 11 and the inner cylindrical body 12 provided in this portion, the inner side from the side wall opening 12a of the inner cylindrical body 12 It enters into the cylindrical body 12, and at this time, the rotation of the swirling flow is reversed, and further, the swirling flow is developed in which the strength of swirling of the liquid is increased.

  In the embodiment shown in FIG. 7, the case where the introduced liquid L swirls in the direction guided by the blade body 13b of the swivel guide member 13 has been described, but the present invention is not limited to this. For example, the first fluid introduction pipe 121 is provided on a part of the circumferential surface of the outer cylindrical body 11 so that the liquid L is introduced along the annular tangential direction in a sectional view without providing the blade body 13 b of the turning guide member 13. Thus, a swirl flow may be generated in the liquid. By doing in this way, since it is not necessary to provide the blade body 13b, the structure of an apparatus can be simplified and manufacturing cost and running cost can be reduced.

  In the embodiment shown in FIG. 7, the case where the rotation of the swirling flow is reversed by providing the inner cylindrical body 12 is described, but the present invention is not limited to this. The inner cylindrical body 12 is not provided, and the rotation of the swirl flow may be only in one direction.

  The swirling flow of the liquid L thus developed is pushed up in the inner cylindrical body 12 by the inflow pressure of the liquid L and reaches the cylindrical body 14 having a truncated cone shape. The swirling speed of the swirling flow of the liquid L that has reached the frustoconical cylindrical body 14 increases at a stretch due to the frustoconical structure having a smaller radius toward the upper side of the tubular body 14, and is large for the swirling liquid L. Centrifugal force acts.

  By the action of this centrifugal force, the central portion of the truncated cone-shaped cylindrical body 14 becomes negative pressure. Due to the negative pressure force, the gas (air) G, which is the second fluid, automatically flows through the second fluid introduction pipe 32 and the second fluid passage 1b2 of the baffle regulating body 1b. Introduced in the approximate center. Thus, by being able to automatically supply the gas G that is the second fluid mixed with the liquid L that is the first fluid by the negative pressure force, a pump for supplying the gas G that is the second fluid, A compressor or the like is unnecessary, which can contribute to cost reduction of the apparatus. Further, the negative pressure changes according to the flow rate (flow velocity) of the liquid L that is the first fluid. For example, if the flow rate (flow velocity) of the liquid L decreases, the negative pressure decreases accordingly, and the supply amount of the gas G that is automatically supplied also decreases. Conversely, if the flow rate (flow velocity) of the liquid L increases, the negative pressure rises accordingly, and the supply amount of the gas G that is automatically supplied also increases. Thereby, since the supply amount of the gas G that is the second fluid can be automatically adjusted according to the supply state of the liquid L that is the first fluid, the mixing condition can be stabilized. In addition, an adjustment valve or the like for adjusting the supply amount of the gas G that is the second fluid becomes unnecessary, which can contribute to further cost reduction of the apparatus.

  This action is particularly useful for a mixing device used in a device that mixes a liquid containing sludge with a chemical such as a flocculant to form a floc, and removes the floc with a screw filter to purify it. For example, a liquid containing sludge is introduced into the first fluid introduction pipe 121 of the mixing device 100, and a chemical solution such as a flocculant is supplied from the second fluid introduction pipe 32. By doing so, the chemical | medical solution of the quantity according to the flow volume (flow velocity) of the liquid containing sludge will be automatically supplied, and it will be mixed with the liquid containing sludge, and a floc can be formed stably. By passing the formed floc-containing liquid thereafter through a known screw filter, it is possible to remove the floc and obtain a liquid free of sludge.

  However, the present invention is not limited to this. For example, without supplying the gas G as the second fluid from the second fluid introduction pipe 32, the first fluid introduction pipe 121 is mixed in advance with the liquid L as the first fluid and the gas G as the second fluid. The gas G that is the second fluid may be supplied from the second fluid introduction pipe 32 in a state where the gas G is pumped by a pumping unit (not shown).

  The gas G introduced into the substantially central portion of the cylindrical body 14 is mixed with the liquid L swirling in the cylindrical body 14, and the liquid (gas-liquid) GL containing the gas G is swirled while the cylindrical body 14 is swung. It is blown out from the swirling flow discharge nozzle 1c at the tip into the cylindrical body 107 of the turbulent flow generation unit 20b.

  The baffle plate 1a arranged on the swirling flow discharge nozzle 1c is lifted by the momentum of the gas-liquid GLp blown while swirling, and the cylindrical body 14 of the swirling flow acceleration unit 30a and the cylindrical body of the turbulent flow generating unit 20b. The lift of the baffle plate 1a is restricted by the negative pressure (internal negative pressure) generated in the 107, and the baffle plate 1a has a balance between the force of the gas and liquid introduced above and the force of the gas and liquid blown out. The baffle plate 1a vibrates.

  Hereinafter, the oscillation (resonance operation) of the baffle plate 1a will be described.

  FIG. 8 is a diagram for explaining the oscillation (resonance operation) of the baffle plate 1a of the turbulent flow generation mechanism 1 shown in FIG. 7B. FIGS. 8A and 8B are diagrams illustrating the baffle plate. It is the perspective view and top view which show the mode in each rotation position S1-S4 which 1a rotates, rocking | fluctuating.

  In a state where the microbubble generator 100 is stopped, there is no flow of the gas-liquid GL introduced from the swirl flow discharge nozzle 1c into the turbulent flow generation unit 20b, and the baffle plate 1a is placed on the swirl flow discharge nozzle 1c. It is in a state (mounting state S0). When the fine bubble generating device 100 is started in this state, the swirling flow of the gas-liquid GL generated by the bubble generating unit 100a is blown out from the swirling flow discharge nozzle 1c into the turbulent flow generating unit 20b.

  When the swirl flow of the gas-liquid GL is blown out from the swirl flow discharge nozzle 1c in this way, the baffle plate 1a placed on the swirl flow discharge nozzle 1c is caused by the momentum of the swirl flow of the blown gas-liquid GL. A lifting force that attempts to lift the baffle plate 1a from the swirl flow discharge nozzle 1c is activated, whereby the baffle plate 1a is lifted on the swirl flow discharge nozzle 1c. On the other hand, a negative pressure is generated in the central portion of the cylindrical body 14 of the swirl flow acceleration unit 30a due to the acceleration of the swirl flow, and a negative pressure is also generated in the central portion of the cylindrical body 107 of the turbulent flow generation unit 20b. As a result of the suction of gas and liquid due to these internal negative pressures, a tensile force is exerted to pull back the baffle plate 1a floating from the swirl flow discharge nozzle 1c toward the swirl flow discharge nozzle 1c. Therefore, the baffle plate 1a is kept in a floating state in which the lifting force due to the swirling flow is held at a height position that balances the tensile force due to suction generated by the internal negative pressure and the own weight of the baffle plate 1a.

  Since the center of the baffle plate 1a placed on the swirl flow discharge nozzle 1c is displaced from the center of the opening of the swirl flow discharge nozzle 1c or is subject to disturbance, the baffle plate 1a is swirled in a tilted state. It is lifted above the nozzle 1c.

  However, the position of the baffle plate 1a is not greatly deviated from the center of the opening of the swirling flow discharge nozzle 1c because the movement range of the baffle plate 1a is restricted by the baffle restricting body 1b. The lifted baffle plate 1a receives a force toward the position where the center of the baffle plate 1a coincides with the center of the opening of the swirling flow discharge nozzle 1c due to the influence of the negative pressure generated at the center of the flow generating portion 20b. At the same time, since the momentum of the swirling flow is uniform around the opening center axis of the swirling flow discharge nozzle 1c, the baffle plate 1a that is inclined as the center of the baffle plate 1a approaches the opening center of the swirling flow discharging nozzle 1c Also, it receives a force to return to a posture parallel to the cross section of the swirling flow. However, since an inertial force acts on the movement of the baffle plate 1a returning to a posture parallel to the cross section of the swirl flow, the baffle plate 1a swings such that when one side of the baffle plate 1a is lowered, the other side is raised. Become.

  When the resonance condition is satisfied by the relationship between the weight of the baffle plate 1a, the force of the swirling flow of the gas-liquid GL and the force of the suction of the gas-liquid GL due to the internal negative pressure, A resonance state in which the oscillation continues due to the swirling flow of the gas-liquid GL and the suction of the gas-liquid GL due to the internal negative pressure.

  Further, since the swirl flow from the swirl flow discharge nozzle 1c is blown to the lower surface of the baffle plate 1a, the baffle plate 1a rotates in the rotation direction of the swirl flow by the frictional force between the swirl flow and the baffle plate 1a. .

  As a result, as shown in FIGS. 8A and 8B, the baffle plate 1a rotates while swinging (resonant operation) so that when one side of the baffle plate 1a is lowered, the other side is raised. It becomes.

  For example, in FIGS. 8A and 8B, the baffle plate 1a swings along a straight line passing through a point p1 on the periphery and a point p2 located on the opposite side of the center with respect to the point p1. A state in which the baffle plate 1a rotates as the axis S while swinging in the direction indicated by the arrow Sr is shown.

  Due to the swinging movement of the baffle plate 1a, the gas-liquid GL flowing in one connecting pipe 31 advances to the fluid storage part (second container) 10b while vibrating back and forth, and the upstream side of the connecting pipe 31 is disturbed. A turbulent flow of the gas-liquid GL is generated in the flow generation unit 20b and the fluid storage unit (second container) 10b on the downstream side of the connection pipe 31. Thus, by generating the turbulent flow of the gas-liquid GL, the bubbles contained in the mixed gas-liquid GL are further miniaturized. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed. Further, since the communication pipe 31 is disposed at the same distance from the central axis of the first container and spaced from each other, the position where the baffle plate 1a is lifted and pulled down by the swinging and rotating motion of the baffle body 1a. Sequentially move in the circumferential direction. Along with this, the position of the communication pipe 31 where the turbulent flow is generated also moves sequentially, and the gas-liquid GL in the vicinity of the position of the communication pipe 31 where the turbulent flow is further miniaturized by the turbulent flow. Will be. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are reliably mixed.

  The mixed gas-liquid GL containing fine bubbles is discharged from the fluid reservoir 10b to the outside of the fine bubble generator 100 through the fluid discharge pipe (second derivation unit) 122.

  As described above, in the fine bubble generating device 100 according to the first embodiment, the fluid reservoir (second container) 10b that primarily stores the gas-liquid GL to be discharged and the upstream side of the fluid reservoir (second container) 10b. A turbulent flow generation unit 20b that disturbs the flow of the gas-liquid GL, and a communication member 30b that connects the fluid storage unit (second container) 10b and the turbulent flow generation unit 20b. By forming a gas-liquid GL flow path with the member 30b and the fluid reservoir 10b and generating a turbulent flow of the gas-liquid GL with the turbulent flow generator 20b, the fluid reservoir 10b from the turbulent flow generator 20b through the communication member 30b. The flow of the gas-liquid GL flowing through the oscillating air was vibrated. By the turbulent flow, the fine bubbles contained in the gas-liquid GL can be divided and further refined. Further, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are more reliably mixed.

  Next, the microbubble generator 1000 according to the second embodiment will be described.

  FIG. 9 is a view for explaining a fine bubble generating apparatus 1000 including a second bubble refinement unit (third container) 300 according to Embodiment 2 of the present invention. FIG. 10 is a diagram for explaining the second bubble refinement unit (third container) 300, and FIG. 10A shows the appearance of the second bubble refinement unit (third container) 300. FIG. 10B shows a cross-sectional structure taken along the line A10-A10 in FIG. 10A, and FIG. 10C shows an enlarged A11 dotted frame portion in FIG. 10B.

  The microbubble generator 1000 is different from the microbubble generator 100 shown in FIG. 1 only in that a second bubble miniaturization unit (third container) 300 is provided. Therefore, the same reference numerals are given to the same components as those shown in FIG. 1, and the description thereof is omitted.

  The second bubble refining part (third container) 300 is connected to the fluid discharge pipe (second derivation part) 122 via a connecting member. In the embodiment shown in FIG. 9, the case where the connecting member is the rubber hose 302b and the elbow 302a has been described, but the present invention is not limited to this. For example, the fluid discharge pipe (second derivation unit) 122 and the second bubble refinement unit (third container) 300 may be directly connected.

  As shown in FIGS. 10 (a) and 10 (b), the second bubble refining unit (third container) 300 is a swivel unit that swirls the gas-liquid GL and the third container body 310 having inner and outer walls. The inner columnar body 320 and the gas-liquid GL are introduced into the outer cylindrical body 310 as a third introducing section for discharging the gas-liquid GL to the outside from the inside of the outer cylindrical body 310. A fluid ejection unit (third derivation unit) 302 that is a third derivation unit. Here, the fluid introduction part (third introduction part) 301 is provided at one end of the outer cylindrical body 310, and the fluid discharge part (third lead-out part) 302 is provided at the other end of the outer cylindrical body 310. It has been.

  As shown in FIG. 10B, the outer cylindrical body 310 and the inner columnar body 320 are formed by fitting the inner columnar body 320 into the outer cylindrical body 310, thereby turning the gas-liquid GL while turning the outer cylinder. A swirl passage Rp2 for flowing from one end side to the other end side of the body 310 is formed.

  FIG. 11 is a diagram for explaining components of the second bubble refinement unit (third container) 300 shown in FIG. 10B, and FIG. 11A shows the second bubble refinement unit ( The outer cylindrical body 310 of the (third container) 300 is shown, and FIG. 11B shows the inner columnar body 320 that constitutes the second bubble refinement section (third container) 300.

  The outer cylindrical body 310 includes an introduction-side peripheral wall portion 311 having a fluid introduction portion (third introduction portion) 301, a discharge-side peripheral wall portion 313 having a fluid discharge portion (third lead-out portion) 302, and an introduction-side peripheral wall portion 311. And the cylindrical body uneven part 312 arranged along the substantially axial direction of the outer cylindrical body 310 located between the discharge side peripheral wall part 313. In one embodiment, the uneven | corrugated shape provided in the cylindrical body uneven | corrugated | grooved part 312 can take arbitrary shapes. For example, in the axial cross section of the outer cylindrical body 310 (the cross section shown in FIG. 11A), for example, it may be a square shape, a triangular shape, or a semicircular shape. Also good. In one embodiment, the arrangement | positioning space | interval of the axial direction of the uneven | corrugated outer cylindrical body 310 provided in the cylindrical body uneven | corrugated | grooved part 312 can be arbitrary. For example, the interval may be constant, or the interval of the unevenness may be varied depending on the place to be arranged, or may be spiral. For example, the axial arrangement interval of the concave and convex outer cylindrical body 310 provided in the cylindrical concave / convex portion 312 is a constant interval, which is about 0.5 mm to about 7 mm, about 1 mm to about 5 mm, about 2 mm to about 3 mm. In a preferred embodiment, as shown in FIG. 10 (c), the unevenness provided on the cylindrical body uneven portion 312 is a spiral thread groove 312, and an unevenness provided on a columnar uneven portion described later. Although it arrange | positions so that it may become a nested state, this invention is not limited to this.

  The inner columnar body 320 includes an introduction side end 321 fitted to the introduction side peripheral wall 311 of the outer cylindrical body 310, a discharge side end 325 fitted to the discharge side peripheral wall 313 of the outer cylindrical body 310, It has a columnar body uneven portion 323 facing the tubular body uneven portion 312 of the outer tubular body 310.

  In one embodiment, the uneven | corrugated shape provided in the columnar body uneven | corrugated | grooved part 323 can take arbitrary shapes. For example, in the axial cross section of the inner columnar body 320 (the cross section shown in FIG. 11B), for example, the inner columnar body 320 may have a square shape, a triangular shape, or a semicircular shape. Good. In one embodiment, the arrangement | positioning space | interval of the axial direction of the uneven | corrugated inner side columnar body 320 provided in the columnar body uneven | corrugated | grooved part 323 may be arbitrary. For example, the interval may be constant, or the interval of the unevenness may be varied depending on the place to be arranged, or may be spiral.

  For example, the axial arrangement interval of the concave and convex outer cylindrical body 310 provided in the cylindrical concave / convex portion 312 is a constant interval, which is about 0.5 mm to about 7 mm, about 1 mm to about 5 mm, about 2 mm to about 3 mm. In a preferred embodiment, as shown in FIG. 10 (c), the unevenness provided in the columnar uneven portion 323 is a screw thread 323 a having a spiral shape, and a thread groove 312 a provided in the tubular uneven portion 312. Although it arrange | positions so that it may become a nested state, this invention is not limited to this.

  In one embodiment, the distance of the clearance gap between the thread 323a provided in the columnar uneven portion 323 and the screw groove 312a provided in the tubular uneven portion 312 may be arbitrary. For example, the interval may be constant, or the interval between the irregularities may be varied depending on the place of arrangement. For example, the distance between the screw thread 323a provided in the columnar uneven portion 323 and the screw groove 312a provided in the tubular uneven portion 312 is about 0.5 mm to about 7 mm, about 1 mm to about 5 mm, about 1. 5 mm to about 3 mm.

  A portion between the introduction side end portion 321 and the columnar body uneven portion 323 of the inner columnar body 320 is an introduction side turning portion 322 that applies a turning force to the introduced gas-liquid GL. A portion between the side end portion 325 and the columnar uneven portion 323 serves as a discharge side turning portion 324 that applies a turning force to the gas-liquid GL to be discharged.

  Here, as shown in FIG. 10C, FIG. 11A, and FIG. 11B, the outer peripheral surface of the columnar uneven portion 323 is formed on the inner peripheral surface of the cylindrical uneven portion 312. A thread 323a is formed in the thread groove 312a so that the screw advances in the opposite direction so as to be in a nested state. In a portion where the inner peripheral surface of the cylindrical body uneven portion 312 of the outer cylindrical body 310 and the outer peripheral surface of the columnar uneven portion 323 of the inner columnar body 320 face each other, the cylindrical uneven portion 312 of the outer cylindrical body 310 is formed. The gas-liquid GL flowing from one end side to the other end side of the outer cylindrical body 310 while turning along the screw groove 312a collides with the thread 323a of the columnar uneven portion 323 of the inner columnar body 320. .

  In the second bubble refining unit (third container) 300 having such a configuration, the gas-liquid GL supplied to the second bubble refining unit (third container) 300 is converted into a fluid introducing unit (third introducing unit). ) 301 is introduced into the turning passage Rp2. The gas-liquid GL introduced into the swirl passage Rp2 is introduced from the fluid introduction portion (third introduction portion) 301, and the introduction-side peripheral wall portion 311 of the outer cylindrical body 310 and the introduction-side swivel portion of the inner columnar body 320. A turning force is applied to the 322. The gas-liquid GL to which the turning force is applied passes through a portion where the inner peripheral surface of the cylindrical body uneven portion 312 of the outer cylindrical body 310 and the outer peripheral surface of the columnar uneven portion 323 of the inner columnar body 320 face each other. Then, it flows into a portion between the discharge side peripheral wall portion 313 of the outer cylindrical body 310 and the discharge side turning portion 324 of the inner columnar body 320. When the gas-liquid GL passes through a portion where the inner circumferential surface of the cylindrical body uneven portion 312 of the outer cylindrical body 310 and the outer peripheral surface of the columnar uneven portion 323 of the inner columnar body 320 face each other, the outer cylindrical body 310 Since the gas flows from the one end side of the outer tubular body 310 to the other end side while turning along the screw groove 312a of the cylindrical body uneven portion 312, the gas-liquid GL is screwed into the columnar body uneven portion 323 of the inner columnar body 320. Collide with mountain 323a. Due to this collision, the bubbles contained in the gas-liquid GL are more finely divided. In addition, since the bubbles are miniaturized, the liquid L and the gas G in the gas-liquid GL are more reliably mixed. Thereafter, the gas-liquid GL in which the bubbles are refined is given a turning force at a portion between the discharge side peripheral wall portion 313 of the outer cylindrical body 310 and the discharge side turning portion 324 of the inner columnar body 320, and the fluid discharge portion. (Third derivation unit) 302 is discharged out of microbubble generator 1000. As described above, the second bubble refining unit (third container) 300 includes the outer column 310 with irregularities (screw groove 312a) and / or the inner column 320 with irregularities (thread 323a). Compared with the case where the columnar body 310 and / or the inner columnar body 320 are not provided with irregularities, the bubbles contained in the gas-liquid GL gas-liquid GL can be refined and a large amount of fine bubbles can be generated. In addition, since a large amount of fine bubbles are present, the liquid L and the gas G in the gas-liquid GL are more reliably mixed.

  Therefore, the fine bubble generating apparatus 1000 includes the second bubble refining unit (third container) 300, so that the bubbles included in the gas-liquid GL can be further increased compared to the fine bubble generating apparatus 100 of the first embodiment. It is possible to produce a large amount of fine particles and fine bubbles. In addition, since a large amount of fine bubbles are present, the liquid L and the gas G in the gas-liquid GL are more reliably mixed.

  As mentioned above, although this invention has been illustrated using preferable embodiment of this invention, this invention should not be limited and limited to this embodiment. It is understood that the scope of the present invention should be construed only by the claims. It is understood that those skilled in the art can implement an equivalent range from the description of specific preferred embodiments of the present invention based on the description of the present invention and common general technical knowledge. Patents, patent applications, and documents cited herein should be incorporated by reference in their entirety, as if the contents themselves were specifically described herein. Understood.

  INDUSTRIAL APPLICATION This invention is useful as what can implement | achieve the mixing device which can mix the fluid containing the 1st fluid and the 2nd fluid reliably, and the manufacturing method of the mixed fluid using such a mixing device.

DESCRIPTION OF SYMBOLS 1 Turbulent flow generation mechanism 1a Baffle plate 1a1 Central opening 1b Baffle restricting body 1b1 Regulating body lower end 1b2 Second fluid passage 1c Swirling flow discharge nozzle 1c1 Discharge port 10a Swirling flow generating portion 10b Fluid storage portion (second container)
DESCRIPTION OF SYMBOLS 11 Outer cylindrical body 11a Upstream flange 11b Downstream flange 12 Inner cylindrical body 12a Side wall opening 12b Inner flange 12b1, 13a1 Bolt insertion hole 13 Turning guide member 13a Blade flange 13b Blade body 14 Cylindrical body 14a Cylindrical upper part 14b Lower cylindrical body 14c Tubular flange 15, 16 Bolt 15
15a, 15b, 16a, 16b, 104a, 104b, 108a, 108b Nut 20a Swirl flow development section 20b Turbulence generation section (first container)
30a Swirling flow acceleration unit 30b Communication member 31 Connecting pipe 32 Second fluid introduction pipe 100 Fine bubble generating device (mixing device)
100a Bubble generation part (fluid mixing part)
100b First bubble refinement part 101, 105 Upper flange 101a Fluid discharge joint 101b, 102a, 105a, 106a Strut insertion hole 101d, 102c, 105d, 106d Circular groove 102, 106 Lower flange 102b Fluid inlet (second introduction part) )
103 Cylindrical body 104, 108 Fixed column 104c, 108c Column body 104d, 104e, 108d, 108e Column thread part 105b Fluid outlet (first outlet)
105c 2nd fluid introduction opening (1st introduction part)
106b 1st fluid introduction opening (1st introduction part)
107 Cylindrical body 110 Base 111 Base leg 112 Support flange 112a First fluid introduction joint 121 First fluid introduction pipe 122 Fluid discharge pipe (second outlet)
300 Second bubble refinement section (third container)
301 Fluid introduction part (third introduction part)
302 Fluid discharge unit (third derivation unit)
310 Outer cylindrical body 311 Introduction side peripheral wall portion 312 Cylindrical body uneven portion 313 Discharge side peripheral wall portion 320 Inner columnar body 321 Introduction side end portion 322 Introduction side turning portion 323 Columnar body uneven portion 324 Discharge side turning portion 325 Discharge side end portion G Gas GL Gas-liquid GLp channel GLp1 Upstream channel unit GLp2 Downstream channel unit GLp3 Intermediate channel unit L Liquid

Claims (12)

A fluid mixing device comprising a first fluid and a second fluid, the mixing device comprising a first container,
The first container
One or more first introduction parts;
A turbulent flow generation mechanism for disturbing the flow of the fluid;
A mixing apparatus comprising one or more first derivation units. The mixing apparatus according to claim 1, further comprising a second container,
The second container
One or more second introduction parts;
A communication member communicating the first lead-out part and the second introduction part;
A mixing apparatus comprising one or more second derivation units.   The mixing device according to claim 2, wherein the communication member includes a plurality of communication pipes.   The mixing device according to claim 3, wherein the plurality of communication pipes are arranged at the same distance from the central axis of the first container and spaced from each other.   The mixing apparatus according to claim 3 or 4, wherein the number of communication pipes is 4 to 8. The turbulent flow generation mechanism is
A swirl flow discharge section for discharging a swirl flow of the fluid;
The baffle plate which is provided in the discharge direction of this swirl flow discharge part, and receives the swirl flow of this fluid discharged from this swirl flow discharge part, The mixing as described in any one of Claims 1-5 apparatus.   The baffle plate is a flat disk, and the baffle plate is rotated by the swirl flow so that the swing axis of the baffle plate transitions in a circumferential direction of the baffle plate. 6. The mixing apparatus according to 6.   The turbulent flow generation mechanism repeatedly applies a force that pushes the fluid toward the first derivation unit and a force that pulls the fluid back from the first derivation unit with respect to the fluid that passes through the communication pipe. The mixing apparatus according to any one of claims 3 to 7.   The mixing device according to any one of claims 1 to 8, wherein the first fluid is a liquid, and the second fluid is a gas or a liquid different from the first fluid.   The mixing apparatus according to claim 1, further comprising a fluid mixing unit that mixes the fluid, wherein the two or more fluids mixed in the fluid mixing unit are the first introduction. A mixing device introduced from the section into the first container. A third container for containing the fluid derived from the first outlet of the first container or from the second outlet of the second container;
One or more third introduction parts;
The mixing device according to any one of claims 1 to 10, including one or a plurality of third derivation units and a swirl flow generation unit that generates a swirl flow of the fluid. A method for producing a mixed fluid of a first fluid and a second fluid,
Supplying the first fluid and the second fluid to the mixing device according to any one of claims 1 to 11;
Mixing the first fluid and the second fluid with the mixing device.