WO2019116642A1 - Dispositif de génération de bulles ultra-fines - Google Patents

Dispositif de génération de bulles ultra-fines Download PDF

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Publication number
WO2019116642A1
WO2019116642A1 PCT/JP2018/032188 JP2018032188W WO2019116642A1 WO 2019116642 A1 WO2019116642 A1 WO 2019116642A1 JP 2018032188 W JP2018032188 W JP 2018032188W WO 2019116642 A1 WO2019116642 A1 WO 2019116642A1
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WO
WIPO (PCT)
Prior art keywords
liquid
blade body
blade
ultra
shaft portion
Prior art date
Application number
PCT/JP2018/032188
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English (en)
Japanese (ja)
Inventor
泰平 山田
Original Assignee
泰平 山田
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Application filed by 泰平 山田 filed Critical 泰平 山田
Priority to JP2018546053A priority Critical patent/JP6490317B1/ja
Publication of WO2019116642A1 publication Critical patent/WO2019116642A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings

Definitions

  • the present invention relates to an ultrafine bubble generator for generating ultrafine bubbles in a liquid.
  • ultrafine bubbles also called nanobubbles
  • ultrafine bubbles have a bubble diameter of 1 ⁇ m (1 It is said to refer to ultra-fine bubbles of the order of nanometers or less or less.
  • ultra fine bubble nano bubble
  • ultra fine bubbles is a gas supplied from the outside to the liquid or a gas dissolved in the liquid, It may be in the form of fine particles, or it may be one in which a plurality of liquid molecules gather to form, for example, hollow-shaped clusters. It may also be a mixture of these. Due to the existence of such extremely fine structures, it is considered that some properties of the liquid molecules and their clusters are mutated to bring about the above-mentioned effects.
  • Patent Document 1 discloses an ultra-fine bubble generator that can be used easily and with a small size.
  • the ultra-fine bubble generator of Patent Document 1 includes a shaft, a cylindrical member attached to the shaft, and a plurality of triangular prismatic projections provided on the outer peripheral surface of the cylindrical member, and the inner side of a tube for feeding liquid. Will be placed.
  • the triangular prismatic projections of the ultrafine bubble generating device are arranged in a spiral on the cylindrical member so that the liquid flows in a spiral around the cylindrical member, and each helical prism has a spiral shape of the liquid.
  • the angle located at the tip of the flow is arranged to be substantially perpendicular to the spiral flow.
  • the liquid flowing inside the tube for delivering the liquid collides with the plurality of triangular prismatic projections, whereby the air contained in the liquid is supplied without supplying air from the outside of the tube for delivering the liquid. It is possible to miniaturize and generate ultra-fine bubbles.
  • the ultrafine bubbles are generated by thus generating turbulent flow in the liquid, but the two ends on the downstream side of the triangular prism-like projection as viewed from the liquid flowing in a spiral shape.
  • the edges one close to the liquid supply side mainly contributes to the generation of turbulent flow, and the other may have a larger disadvantage of narrowing the flow path.
  • Patent No. 6077627 gazette
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide an ultrafine bubble generating device capable of efficiently generating ultrafine bubbles in a liquid.
  • One aspect of the present invention for solving the above problems is that a plurality of rectangular shaft portions and a plurality of rectangular shape extending in the radial direction of the shaft portions with a predetermined gap between the cylindrical shaft portion and the outer peripheral surface of the shaft portion
  • a blade body including a blade, a housing space for housing the blade body, an inlet formed opposite to one end of the blade body and capable of flowing a liquid into the housing space, and the other end of the blade body And a discharge pipe capable of discharging the liquid in the storage space, and each of the blades is formed to have a predetermined inclination angle with respect to the central axis of the shaft portion.
  • An ultrafine bubble generating device comprising: a main surface portion having a predetermined thickness; and a bent portion having a shape in which an edge on the outlet side of the main surface portion is bent.
  • an ultrafine bubble generator capable of efficiently generating ultrafine bubbles in a liquid.
  • FIG. 1 is a side view of the ultrafine bubble generator according to the first embodiment.
  • FIG. 2 is a diagram for explaining the shape of the blade.
  • FIG. 3 is a diagram for explaining the generation of ultrafine bubbles.
  • FIG. 4 is a view for explaining an ultrafine bubble generating device according to a second embodiment.
  • FIG. 5 is a view for explaining a modification of the ultrafine bubble generation device according to the second embodiment.
  • FIG. 6 is a view for explaining an ultrafine bubble generating device according to a third embodiment.
  • FIG. 7 is a view for explaining an ultra-fine bubble generating device according to a fourth embodiment.
  • FIG. 8 is a view for explaining an ultra-fine bubble generating device according to the first modification.
  • FIG. 9 is a view for explaining an ultra-fine bubble generating device according to a second modification.
  • FIG. 10 is a view for explaining a circulation device using the ultrafine bubble generation device.
  • FIG. 1 shows a side view of an ultra-fine bubble generation device 100 according to a first embodiment of the present invention.
  • the ultrafine bubble generator 100 generates ultrafine bubbles in the liquid supplied to the inside of the storage tube 200 from the outside of the ultrafine bubble generator 100, and then generates the ultrafine bubbles. The liquid is discharged to the outside of the ultra-fine bubble generator 100.
  • a plurality of rectangular blades 302 extending in the radial direction of the shaft portion 301 are formed with a predetermined gap on the outer peripheral surface of the cylindrical shaft portion 301.
  • the blade 302 has a main surface 302a formed at a predetermined inclination angle with respect to the central axis of the shaft 301 at an end on the inlet 202 side, and an edge of the main surface 302a on the outlet 203 side. Is configured to include a bent portion 302 b having a shape bent with respect to the main surface portion 302 a. Each component will be described below.
  • the storage tube 200 is a tubular member through which liquid can flow, and can accommodate the blade 300 therein.
  • the storage tube 200 includes a storage space 201 for storing the blade 300, an inlet 202 communicating with the storage space 201 and supplied with a liquid, and an outlet 203 for discharging the liquid.
  • the inlet 202 and the outlet 203 can be formed at both ends of the storage tube 200, for example.
  • the housing space 201 can be formed, for example, in a substantially cylindrical shape so as to be able to house the blade body 300.
  • the inlet 202 side of the storage tube 200 is referred to as the upstream side
  • the outlet 203 side is referred to as the downstream side.
  • the diameter of the inner circumference of the inlet 202 and the outlet 203 can be about 8 mm.
  • (Blade body) A member that generates ultrafine bubbles in a liquid by guiding the flow of the liquid in a predetermined direction so that the blade 300 swirls inside the storage tube 200 and generating turbulence in at least a part of the liquid. It is. As shown in FIG. 1, the blade 300 is a substantially plate-like member disposed on the outer peripheral surface of the cylindrical shaft portion 301 with a predetermined gap in each of the circumferential direction and the axial direction of the shaft portion 301. A plurality of blades 302 are provided. The blade body 300 may be formed such that circumferential rotation and axial movement within the housing space 201 are restricted.
  • the blade body 300 can be fixed, for example, by forming the tip end of the blade 302 in contact with the inner peripheral surface of the storage tube 200 in the storage space 201.
  • a projection or the like protruding from the storage tube 200 toward the storage space 201 may be provided to restrict the movement of the blade 300.
  • a ring-shaped member which can abut on the inner circumferential surface of the housing tube 200 and the tip of the blade 302 to reinforce the blade 302 and restrict the movement of the blade body 300 is the housing tube 200 and the blade body 300. May be inserted between
  • the blades 302 of the blade 300 are preferably arranged to pivot as much liquid as possible. Then, for example, as shown in FIG. 3, when the liquid passing through the gap of the blade 302 flows parallel to the axial direction of the shaft portion 301, the blade 302 is disposed so as to hit the blade 302 on the downstream side. It may be possible to prevent the flow parallel to the direction and bypassing between the blades 302.
  • FIG. 2 shows a perspective view of the plurality of blades 302 ((a) in FIG. 2), and a front view, a plan view, and a side view ((b) in FIG. 2) of the blades 302.
  • the blade 302 has a main surface 302 a which is a plate-like member formed to be inclined with respect to the central axis of the shaft 301, and a downstream end edge of the main surface 302 a is bent. And a bent portion 302b having a square shape.
  • the main surface portion 302 a can be, for example, a rectangular shape having a constant thickness.
  • the shape of the bending portion 302b is not limited as long as the downstream end edge of the main surface portion 302a is bent, for example, as shown in FIG. 2B, the opposite side to the main surface portion 302a of the bending portion 302b It may be formed to have an inclined surface that extends between the end of the and the main surface portion 302a.
  • the outer diameter D1 of the blade body 300 can be, for example, about 15 mm to 20 mm.
  • the outer diameter D2 of the shaft portion 301 is about 10 mm to 15 mm
  • the height H1 from the connection portion of the blade 302 with the shaft portion 301 to the tip is about 2.5 mm
  • the distance from the main surface 302a of the bent portion 302b to the tip The height H2 which is preferably about 1 mm to 1.5 mm.
  • the acute angle ⁇ between the normal vector of the main surface portion 302 a of the blade 302 and the central axis of the blade 300 is not particularly limited, but may be, for example, about 45 °.
  • the length of the blade 300 in the central axis direction can be about 60 mm to 80 mm.
  • the number of the blades 302 aligned in the central axis direction of the blade body 300 can be about 15 to 20.
  • the bending direction with respect to the main surface part 302a of the bending part 302b is not limited.
  • the upstream rectification member 303 a and the downstream rectification member 303 b may be provided at each of the upstream and downstream ends of the blade body 300.
  • the upstream rectifying member 303 a rectifies the liquid flowing into the accommodation space 201 so that the liquid flows smoothly toward the blade 300.
  • the downstream side rectification member 303 b is a member that rectifies the liquid flowing out from the downstream end of the shaft portion 301 so as to smoothly flow toward the discharge port 203.
  • the upstream rectifying member 303 a is a conical member provided at the upstream end of the shaft portion 301 and protruding toward the upstream.
  • the downstream side flow adjustment member 303 b is a conical member provided at the downstream end of the shaft portion 301 and protruding toward the downstream side.
  • FIG. 3 is a view schematically showing the plurality of blades 302 viewed from the radial direction of the shaft portion 301 and the state of liquid flowing therebetween.
  • the arrows in the figure indicate the flow of liquid.
  • the liquid supplied to the ultrafine bubble generator 100 and flowing into the storage space 201 of the storage pipe 200 from the inflow port 202 and passing through the surface of the upstream rectifying member 303a is first of all shown in the shaft portion 301 as shown by the white arrow.
  • main surface portions 302 a of a plurality of blades 302 referred to as a first blade group 302-1
  • the liquid that has collided with the main surface portion 302a flows along the surface of the main surface portion 302a, as shown by a straight black arrow in FIG.
  • the liquid that has passed through the end portion of the main surface portion 302 a of the first blade group 302-1 flows helically as a whole with respect to the central axis of the shaft portion 301 while generating turbulent flow. It flows along the major surface portions 302a of the plurality of blades 302 (referred to as a second blade group 302-2) arranged in the circumferential direction of the shaft portion 301, adjacent to the downstream side of -1. Then, in the liquid flowing along the surface of the main surface portion 302a of the second blade group 302-2, turbulent flow is generated in part of the liquid around the bending portion 302b.
  • the liquid having flowed into the accommodation space 201 finally reaches the downstream end of the shaft portion 301 while repeatedly passing through the gaps between the plurality of blades 302 as described above.
  • the liquid that has reached the downstream end of the shaft portion 301 flows along the surface of the downstream flow straightening member 303 b and then passes through the discharge port 203 and is discharged from the ultrafine bubble generator 100.
  • the liquid that has flowed into the storage tube 200 flows while spirally swirling around the outer periphery of the shaft portion 301. Then, it is considered that ultrafine bubbles are generated inside the liquid by the liquid becoming a turbulent flow at the bending portion 302 b of each blade 302. As a result, the ultrafine bubble generator 100 discharges the liquid containing the ultrafine bubble.
  • the ultra-fine bubbles can be generated in the liquid by circulating the liquid.
  • the plurality of blades 302 be arranged to pass the liquid in a spiral while smoothly swirling around the shaft portion 301. Therefore, the plurality of blades 302 are arranged such that the end edge of the main surface portion 302 a on the shaft portion 301 side follows a virtual spiral line on the outer peripheral surface of the shaft portion 301. Also, as shown in FIG. 3, along the imaginary spiral line, between the downstream end of the upstream circumferentially adjacent two blades 302, another downstream blade adjacent to the downstream side. A plurality of blades 302 may be arranged so that the tip of 302 is located. By arranging the plurality of blades 302 in this manner, the turbulent flow caused by the upstream blade 302 is divided by the tip of the downstream blade 302 to generate more complicated turbulent flow, and the more efficient ultra There is a high possibility that a fine bubble will occur.
  • a desired amount of ultrafine bubbles can be obtained by appropriately setting the inclination angle, the number, the size, and the like of the blades 302 in accordance with the viscosity, flow rate, flow rate, fluid pressure, etc. of the fluid flowing into the ultrafine bubble generator 100. It is possible.
  • the downstream end of the plate-like blade 302 is folded back, so that the turbulent flow is generated sufficiently, and the blade has a flow rather than the triangular prism shape. Since a sufficient path can be secured, ultra fine bubbles can be generated efficiently.
  • the ultrafine bubble generating device 100 by disposing the tip of the other blade 302 adjacent on the downstream side between the downstream ends of the two blades 302 adjacent in the circumferential direction as described above, while the liquid moves in a spiral manner along the blades 302 of the blade 300 in the storage tube 200, turbulence is generated at the downstream end of each blade 302 and this is caused to flow to the blade 302 adjacent to the downstream. Collisions can generate more complex turbulence. Therefore, there is a high possibility that the air or the like in the liquid can be miniaturized and ultrafine bubbles can be generated more efficiently, without supplying the gas from the outside.
  • the entity of the ultrafine bubble may be a hollow liquid molecule cluster.
  • FIG. 4 shows an exploded view of the blade 310 (FIG. 4A) and a front view and a side view of the blade element 311 and the spacer 312 constituting the blade 310 (FIG. 4B).
  • the blade body 310 has a plurality of blade body elements 311 in which twelve blades 302 having a bending portion 302 b are formed on the outer peripheral surface of a cylindrical member, and a cylindrical shape. It is comprised by the spacer 312.
  • the blade body 310 is formed by alternately stacking the blade body elements 311 and the spacers 312.
  • the number of blades 302 in each blade element 311 is preferably 12 to 16 but is not limited to this and can be set as appropriate.
  • the thickness of the cylindrical member can be, for example, 4 mm or less.
  • the length of the blade 310 is adjusted by appropriately adjusting the number of the plurality of blade body elements 311 constituting the blade 310, the shape, the number of the spacers 312, and the size thereof.
  • the flow generation efficiency can be optimized to adjust the number of ultra fine bubbles generated.
  • FIG. 4B is a view showing the blade body element 311 and the spacer 312 from three directions.
  • the blade body element 311 and the spacer 312 are, for example, on the surface where the blade body element 311 and the spacer 312 are in contact when laminating the blade body element 311 and the spacer 312. Fitting holes 311a and 312a and fitting projections 311b and 312b for coupling are formed.
  • the blade body element 311 and the spacer 312 can be integrally manufactured by plastic molding, press molding or the like. Moreover, a blade body can be easily manufactured by laminating
  • a known method can be used to connect the blade body element 311 and the spacer 312, for example, it may be bonded with an adhesive, may be ultrasonically welded, or may be simply fitted.
  • the blade body 310 is configured by the blade body element 311 and the spacer 312 has been described, but the blade body 310 may be configured by only the blade body element 311.
  • the blade body may be provided with a member for reinforcing the blade 302.
  • FIG. 5 shows a cross-sectional view and a front view of a blade body 330 according to a modification.
  • the difference between the blade body 310 and the blade body 330 is the presence or absence of a reinforcing member 331 for reinforcing the blade 302.
  • the reinforcing member 331 is a cylindrical member, and is provided so as to connect the tips of the plurality of blades 302 in the radial direction of the blade body 330.
  • the reinforcing member 331 can reinforce the blade 302. Therefore, it is easy to suppress the deformation of the blade 302 when the liquid passes.
  • FIG. 6 shows an exploded view of the blade body 320 (FIG. 6A) and front and side views of the blade body element 321 and the spacer 322 that constitute the blade body 320 (FIG. 6B).
  • the blade body 320 includes a plurality of blade body elements 321 in each of which eight blades 302 having bent portions 302 b are formed on the outer peripheral surface of the disk-like member. , And a truncated cone spacer 322.
  • the blade body 320 is formed by alternately stacking the blade body elements 321 and the spacers 322.
  • the number of blades 302 is not limited to eight and can be set as appropriate.
  • the plurality of blade body elements 321 and the spacer 322 respectively have through holes 321 a and 322 a at the center.
  • an axial member extending from the bottom surface of the upstream rectification member 323a or the downstream rectification member 323b (not shown) is provided in the ultra fine bubble generating device 120.
  • the shaft-like member is inserted into the through holes 321 a and 322 a of the spacer 322 to laminate the blade body element 321 and the spacer 322.
  • the number of the plurality of blade body elements 321, the shape, the number of the spacers 322, and the size can be appropriately adjusted to adjust the number of generated ultrafine bubbles.
  • the blade element 321 is formed of a disk-shaped member and the blade 302, and can be manufactured by press molding using a metal plate such as iron or aluminum. Specifically, a blade body element 321 is punched out of a metal plate and provided with a plurality of blades 302 in a flat state, and then the blade 302 is bent to form a blade angle 321 and a bent portion 302b to form the blade body element 321. be able to. Therefore, the blade body 320 can also manufacture the ultrafine bubble generator 120 at low cost.
  • the bent portion 302b may be formed by not taking burrs at the time of punching instead of bending and forming.
  • FIG. 7 shows a partial side view (FIG. 7 (a)) of the ultrafine bubble generator 130 and a plan view and a front view of the rectifying member 333 (FIG. 7 (b)).
  • the rectifying member 333 is provided to efficiently guide the liquid flowing in from the inlet 202 to the blade 300.
  • a plurality of spiral blades 333 a are formed at equal intervals from the upstream side toward the downstream side on the outer periphery.
  • the straightening member 333 includes four blades 333a as an example, but the number of the blades 333a is not particularly limited.
  • the ultrafine bubble generator 130 gradually changes the direction while passing the liquid flowing from the inflow port 202 between the blades 333a, as shown by the white arrows in FIG. Flow along the As a result, the flow of the liquid inside the ultrafine bubble generator 130 can be promoted.
  • the flow straightening member 333 is provided on the upstream side of the blade 300 as an example, the flow straightening member 333 is provided on the downstream side of the blade 300 similarly to the downstream flow straightening member 303b. You may use. Thereby, it is also possible to promote the flow of the liquid flowing to the discharge port 203.
  • the blade body 300 was used as an example and demonstrated in this embodiment, if the ultrafine bubble generation apparatus 130 is provided with the rectification
  • the difference between the ultra fine bubble generating device 100 and the ultra fine bubble generating devices 140 a to 140 d is the presence or absence of the outside air supply means 141.
  • the outside air supply means 141 is a means for taking in the outside air into the liquid flowing inside the ultra fine bubble generator 101.
  • the outside air supply means 141 is a tube provided with a flow passage through which a gas can flow, for example, made of plastic A tube or the like can be used.
  • one end of the outside air supply means 141 on the side to which outside air is discharged is a predetermined gap with the tip of the downstream side rectification member 303b.
  • the other end on the side where gas is sucked is disposed at a position where the outside air can be sucked in, such as the outside of the ultra-fine bubble generating devices 140a and 140b.
  • a through hole is opened in the axial direction of the blade 300, and the outside air supply means 141 is passed from the inflow port 202 side through the through hole. Further, in the ultra fine bubble generating device 140 b, the outside air supply means 141 is passed from the side of the discharge port 203.
  • one end of the outside air supply means 141 on the side to which outside air is discharged is the upstream end portion of the blade 300 and the shaft portion inside the blade 300. It is disposed in a through hole formed to communicate with the outer peripheral surface of 301, and the other end on the side where gas is sucked is disposed at a position where it can suck in external air such as the outside of ultrafine bubble generator 140c. Ru.
  • the external air is sucked from the external air supply means 141 by the force of the liquid flowing inside the ultrafine bubble generating devices 140a to 140c, and is caught in the turbulent flow.
  • the sucked outside air is discharged from the discharge port 203 as a microbubble of 1 to 100 ⁇ m in diameter or a bubble of a larger size, for example, inside the liquid.
  • the outside air supply means 141 is composed of a tube having a flow hole through which gas can flow, and a pump capable of supplying outside air to the tube.
  • the outside air supply means 141 is disposed such that one end of the tube on the side where the outside air is discharged has a predetermined gap with the tip of the upstream side rectification member 303a.
  • the pump discharges the outside air into the liquid through the tube.
  • the discharged outside air is discharged as microbubbles into the liquid, and is discharged from the discharge port 203 together with the ultrafine bubbles generated by the blade 300.
  • the ultrafine bubble generating devices 140a to 140d according to the modification, it is possible to generate a liquid containing microbubbles together with the ultrafine bubbles.
  • the position of the discharge side end of the tube of the outside air supply means 141 is moved in the axial direction, and the discharge side end and the upstream side straightening member 303a or the downstream side straightening member 303b
  • the predetermined gap with the tip of the tip it is possible to adjust the degree to which the outside air is caught in the turbulent flow and to change the size and / or amount of the microbubbles.
  • extra fine bubbles derived from ambient air can also be generated.
  • the blade body 310 or the blade body 320 may be used for the ultrafine bubble generating devices 140a to 140d, or the flow control member 333 may be used.
  • FIGS. 9A and 9B show ultra fine bubble generating devices 150a and 150b according to the second modification, respectively.
  • the difference between the ultra fine bubble generating device 100 and the ultra fine bubble generating devices 150 a and 150 b is the presence or absence of the rotating means 151 capable of rotating the blade 300.
  • the rotation means 151 of the ultrafine bubble generator 150a has a tip on the upstream side of the upstream rectification member 303a so as to rotate the blade 300 in the circumferential direction. It is connected with the blade body 300 via the shaft member extended from this.
  • a motor can typically be used for the rotation means 151.
  • the blade 300 can be rotated in the circumferential direction while supplying liquid from the inflow port 202 to the inside of the storage tube 200.
  • the liquid flowing on the surface of the blade 302 of the blade 300 is more likely to pass through the end of the blade 302 compared to when the blade 300 is at rest, so that the occurrence of turbulent flow is increased.
  • the rotation means 151 may be connected to the downstream end of the downstream side rectification member 303b.
  • the ultra-fine bubble generating device 150b shown in (b) of FIG. 9 is an example using a food mixer as the rotating means 151.
  • the blade 300 is attached to the rotating shaft of the food mixer to enable supply and discharge of the liquid to the food container 152, and the container tube 200 is provided inside the food container 152. .
  • the liquid supplied to the food containing portion 152 flows into the containing tube 200 from the lower side of the food containing portion 152. Thereafter, the liquid flows inside the storage tube 200 toward the upper side of the food storage portion 152, and the blade body 300 generates ultrafine bubbles, which are discharged from the food storage portion 152.
  • the flow direction of the liquid may be opposite to this.
  • the ultrafine bubble generator 150 b may be provided with valves for stopping the flow of the liquid at the supply port and the discharge port of the liquid to the food container 152.
  • valves for stopping the flow of the liquid at the supply port and the discharge port of the liquid to the food container 152.
  • the ultra-fine bubble generator 150b it is possible to easily generate ultra-fine bubbles using a food mixer.
  • the blade body 310 or the blade body 320 may be used for ultra-fine bubble generation apparatus 150a, 150b, and the flow adjustment member 333 may be used.
  • FIG. 10 is a schematic view of a circulation device 400 capable of increasing the concentration of ultrafine bubbles to be generated using the ultrafine bubble generation device 100 as an example.
  • the circulation device 400 includes the ultrafine bubble generation device 100, a storage tank 401 for storing the liquid discharged from the ultrafine bubble generation device 100, and suction of the liquid in the storage tank to generate the ultrafine bubble. It includes a pump 402 that supplies the inlet 202 of the device 100 and a pipe that connects these.
  • the circulation device 400 the liquid including the ultrafine bubbles discharged from the ultrafine bubble generation device 100 is temporarily stored in the storage tank 401, and the liquid in the storage tank 401 is suctioned up by the pump 402 to make the ultrafine bubble generation device 100. Can be supplied again. Therefore, in the circulation device 400, it is possible to increase the concentration of the ultra fine bubbles contained in the liquid in the storage tank 401 by repeating this circulation.
  • the present invention is applicable to an ultrafine bubble generator.

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  • Chemical Kinetics & Catalysis (AREA)

Abstract

L'invention concerne un dispositif de génération de bulles ultra-fines capable de générer des bulles ultra-fines dans un liquide en amenant celui-ci à s'écouler à travers lui. Ce dispositif de génération de bulles ultra-fines est pourvu : d'un corps de lame comprenant une section d'arbre cylindrique solide et une pluralité de lames rectangulaires, la pluralité de lames rectangulaires étant disposée sur la surface périphérique externe de la section d'arbre avec des espaces prédéterminés entre les lames rectangulaires et s'étendant dans la direction radiale de la section d'arbre; et un tube de confinement pourvu d'un espace de confinement qui contient les corps de lame, une ouverture d'entrée qui est formée de façon à faire face à une extrémité du corps de lame et à travers laquelle un liquide peut s'écouler dans l'espace de confinement, et une ouverture de décharge qui est formée de manière à faire face à l'autre extrémité du corps de lame et à travers laquelle le liquide dans l'espace de confinement peut être évacué. Chacune des lames est pourvue : d'une section de surface principale ayant une certaine épaisseur et formée de manière à avoir un angle aigu prédéterminé par rapport à l'axe central de la section d'arbre; et une section de courbure formée de telle sorte que l'extrémité côté ouverture de décharge de la section de surface principale soit courbée.
PCT/JP2018/032188 2017-12-14 2018-08-30 Dispositif de génération de bulles ultra-fines WO2019116642A1 (fr)

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WO2021193559A1 (fr) 2020-03-27 2021-09-30 シンバイオシス株式会社 Mélangeur rotatif, filtre de cisaillement de bulles, dispositif de génération de bulles ultrafines et procédé de production de fluide à bulles ultrafines
JP6984919B1 (ja) * 2020-12-17 2021-12-22 株式会社アルベール・インターナショナル 微小気泡発生装置
JP6990471B1 (ja) 2021-01-12 2022-01-12 泰平 山田 ウルトラファインバブル発生装置
JP7338926B1 (ja) 2023-03-24 2023-09-05 株式会社アルベール・インターナショナル 微小気泡発生器具

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WO2021193559A1 (fr) 2020-03-27 2021-09-30 シンバイオシス株式会社 Mélangeur rotatif, filtre de cisaillement de bulles, dispositif de génération de bulles ultrafines et procédé de production de fluide à bulles ultrafines
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JP6990471B1 (ja) 2021-01-12 2022-01-12 泰平 山田 ウルトラファインバブル発生装置
WO2022153813A1 (fr) * 2021-01-12 2022-07-21 泰平 山田 Dispositif d'activation de fluide
JP2022108153A (ja) * 2021-01-12 2022-07-25 泰平 山田 ウルトラファインバブル発生装置
JP7338926B1 (ja) 2023-03-24 2023-09-05 株式会社アルベール・インターナショナル 微小気泡発生器具
JP7378752B1 (ja) 2023-03-24 2023-11-14 株式会社アルベール・インターナショナル 微小気泡発生器具

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