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WO2025041702A1 - Mélangeur de fluide de type à tourbillon - Google Patents

Mélangeur de fluide de type à tourbillon Download PDF

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Publication number
WO2025041702A1
WO2025041702A1 PCT/JP2024/029088 JP2024029088W WO2025041702A1 WO 2025041702 A1 WO2025041702 A1 WO 2025041702A1 JP 2024029088 W JP2024029088 W JP 2024029088W WO 2025041702 A1 WO2025041702 A1 WO 2025041702A1
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WIPO (PCT)
Prior art keywords
vortex
fluid
end wall
flow passage
vortex chamber
Prior art date
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Pending
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PCT/JP2024/029088
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English (en)
Japanese (ja)
Inventor
康太 隈元
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Asahi Yukizai Corp
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Asahi Yukizai Corp
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Publication date
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Publication of WO2025041702A1 publication Critical patent/WO2025041702A1/fr
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Classifications

    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • 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
    • B01F35/50—Mixing receptacles
    • B01F35/53—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components
    • 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
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/06—Mixing of food ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/22—Mixing of ingredients for pharmaceutical or medical compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/44—Mixing of ingredients for microbiology, enzymology, in vitro culture or genetic manipulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/58—Mixing semiconducting materials, e.g. during semiconductor or wafer manufacturing processes

Definitions

  • the present invention relates to a vortex type fluid mixer that uses vortex currents to mix two or more fluids and is used in fluid transport piping in various industries such as chemical plants, semiconductor manufacturing, food, medical, and bio industries.
  • a common method for mixing fluids flowing through a pipe is to use a static mixer with a twisted blade-shaped static mixer element installed inside the pipe, as disclosed in Patent Document 1, for example.
  • a static mixer element has a structure in which the smallest unit member is a rectangular plate twisted 180 degrees around its longitudinal axis, and multiple smallest unit members are connected in series.
  • the end of the right element (the end in the torsional axis direction), which is a rectangular plate twisted 180 degrees clockwise
  • the end of the left element (the end in the torsional axis direction), which is a rectangular plate twisted 180 degrees counterclockwise
  • the fluid flowing through the pipe is divided into two each time it passes through an element, and as the fluid flows along the twisted surface of the element, it is stirred by the action of shifting from the center of the pipe to the pipe wall and reversing the twisting direction of the flow, and the fluid is mixed uniformly in the radial direction of the pipe.
  • Methods for reducing the variation in concentration (uneven concentration distribution) in the flow direction of mixed different types of fluids include a method of providing a tank in the middle of the flow path, storing the fluid in the tank, homogenizing the concentration, and then discharging the fluid, and a method of providing multiple branches in the flow path, as described in Patent Document 2, where the fluids are reunited at different positions and mixed using a time difference to homogenize the concentration.
  • the object of the present invention is therefore to provide a fluid mixer that solves the problems present in the prior art, saves space, and reduces the variation in concentration in both the radial and flow directions of the piping.
  • the present invention provides a vortex type fluid mixer comprising: a vortex chamber defined by a cylindrical peripheral side wall and a first end wall and a second end wall provided at both ends of the peripheral side wall and facing each other; an inlet flow path extending along the central axis of an inlet flow path and opening at the peripheral side wall; an outlet flow path extending along the central axis of an outlet flow path and opening at the first end wall; and a junction section provided upstream of the inlet flow path where at least two fluid supply paths join; the vortex chamber is configured so that fluids supplied from the at least two fluid supply paths and joined at the junction section form a vortex when they flow into the vortex chamber via the inlet flow path; and the fluids mixed in the vortex chamber form a vortex and flow out from the outlet flow path.
  • a vortex chamber is defined by a cylindrical peripheral side wall and a first end wall and a second end wall provided at both ends thereof that face each other, the inlet flow passage opens into the peripheral side wall of the vortex chamber, and the outlet flow passage opens into the first end wall, so that when the fluids that join at the junction provided upstream of the inlet flow passage flow into the vortex chamber via the inlet flow passage, they form a vortex. Therefore, the fluid flowing in from the inlet flow passage becomes a swirling flow in the vortex chamber and flows in a vortex shape before flowing out from the outlet flow passage.
  • the stirring action of the vortex in the vortex chamber can reduce the variation in concentration (unevenness in concentration distribution) of the different types of fluids.
  • the inventors of the present application also discovered that in a vortex type fluid mixer configured as described above, the fluid flowing from the inlet flow passage into the vortex chamber flows along different paths from the inlet flow passage into the vortex chamber to the outlet flow passage depending on the position where the fluid flows in the cross section of the inlet flow passage perpendicular to the flow direction, and the length of the streamline from the inlet flow passage into the vortex chamber to the outlet flow passage is different.
  • fluids at different positions in the flow direction in the inlet flow passage i.e., fluids that flow along different paths and have different streamline lengths
  • the mixing effect using the time difference can reduce the concentration variation (unevenness in concentration distribution) in the flow direction of different types of fluids.
  • the inlet flow passage is arranged so that the central axis of the inlet flow passage passes through a position away from the central axis of the vortex chamber that connects the center of the first end wall and the center of the second end wall.
  • the outlet flow passage is preferably arranged so that the central axis of the outlet flow passage extends through a position away from the central axis of the inlet flow passage.
  • the outlet passage is provided so that the central axis of the outlet passage extends along the central axis of the vortex chamber.
  • the device may further include a protrusion protruding into the vortex chamber from at least one of the first end wall and the second end wall.
  • the protrusion may be provided at a position offset from the central axis of the vortex chamber, or the protrusion may be provided at a position offset from the central axis of the outlet flow passage.
  • the second end wall may be formed of a diaphragm.
  • the diaphragm may be moved by a drive unit so as to approach or move away from the first end wall.
  • the first end wall and the second end wall are circular or elliptical.
  • a vortex is generated in the vortex chamber, and the mixing action of the vortex in the vortex chamber can reduce the variation in concentration of different types of fluids.
  • the fluid flowing into the vortex chamber from the inlet passage flows along different paths from the inlet passage into the vortex chamber to the outlet passage depending on the position where the fluid flows in the cross section of the inlet passage perpendicular to the flow direction, and the length of the streamline from the inlet passage into the vortex chamber to the outlet passage also differs. For this reason, fluids at different positions in the flow direction in the inlet passage are mixed at various points in the vortex chamber and at the inlet of the outlet passage, and the mixing effect utilizing the time difference can reduce the variation in concentration in the flow direction of different types of fluids.
  • FIG. 1 is a partially cutaway perspective view showing the overall configuration of a vortex fluid mixer according to a first embodiment of the present invention, with a portion cut away so that the inside can be seen.
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 and showing the positions of a plurality of regions in the cross section viewed in the direction of the arrows.
  • 3 is an explanatory diagram illustrating a schematic flow line of the fluid passing through region H in FIG. 2 when the fluid flows through the vortex chamber of the vortex type fluid mixer shown in FIG. 1 .
  • FIG. 3 is an explanatory diagram illustrating a schematic flow line of a fluid passing through region I in FIG. 2 when the fluid flows through a vortex chamber of the vortex type fluid mixer shown in FIG. 1.
  • FIG. 3 is an explanatory diagram illustrating a schematic flow line of a fluid passing through region F in FIG. 2 when the fluid flows through a vortex chamber of the vortex type fluid mixer shown in FIG. 1.
  • FIG. FIG. 11 is a schematic side view of a vortex fluid mixer according to a second embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing the inside of a vortex fluid mixer according to a third embodiment of the present invention as viewed from the side.
  • FIG. 11 is a schematic diagram showing the inside of a vortex fluid mixer according to a fourth embodiment of the present invention as viewed from the side.
  • FIG. 2 is an explanatory diagram showing the configuration and dimensions of a vortex fluid mixer used in a numerical simulation.
  • FIG. 2 is an explanatory diagram showing the configuration and dimensions of a vortex fluid mixer used in a numerical simulation.
  • 13 is a graph showing the time changes in the maximum and minimum values of the passive scalar of the mixed fluid obtained in each region at the reference position of the inlet flow passage in a numerical simulation using a vortex type fluid mixer.
  • 13 is a graph showing the time changes in the maximum and minimum values of the passive scalar of the mixed fluid obtained in each region at the reference position of the outlet flow passage in a numerical simulation using a vortex type fluid mixer.
  • 3 is a graph showing a comparison of the lengths of streamlines when a fluid passing through each region at the reference position of the inlet passage shown in FIG. 2 flows through a vortex chamber in a numerical simulation using a vortex type fluid mixer.
  • the vortex type fluid mixer 11 includes a cylindrical peripheral wall 13 extending along the central axis, a first end wall 15 and a second end wall 17 provided at both ends of the peripheral wall 13 in the central axis direction so as to face each other, an inlet flow path 19, an outlet flow path 21, and a junction 23 provided upstream of the inlet flow path 19.
  • the first end wall 15 and the second end wall 17 have the same shape and are provided so as to close both ends of the peripheral wall 13 in the central axis direction, and the space surrounded by the peripheral wall 13, the first end wall 15, and the second end wall 17 constitutes a vortex chamber 25.
  • the center of the first end wall 15 and the center of the second end wall 17 refer to the center positions of the first end wall 15 and the second end wall 17, respectively.
  • the first end wall 15 and the second end wall 17 are circular, and the peripheral side wall 13 is cylindrical.
  • the shapes of the first end wall 15 and the second end wall 17 are not limited to being circular, and can be any shape, such as an elliptical shape, a polygonal shape such as a triangular shape or a rectangular shape, as long as a vortex can be generated in the vortex chamber 25.
  • the inlet flow passage 19 extends along the inlet flow passage central axis P1 perpendicular to the vortex chamber central axis O and opens to the peripheral side wall 13.
  • the inlet flow passage central axis P1 extends so as to pass through the center of the cross section of the inlet flow passage 19.
  • the outlet flow passage 21 extends from the vortex chamber 25 to the outside along the outlet flow passage central axis P2 parallel to the vortex chamber central axis O and opens to the first end wall 15 of the vortex chamber 25.
  • the outlet flow passage central axis P2 extends so as to pass through the center of the cross section of the outlet flow passage 21.
  • the inlet flow passage 19 and the outlet flow passage 21 are both formed of circular pipes having a circular cross section.
  • the cross sections of the inlet flow passage 19 and the outlet flow passage 21 are not limited to a circular shape, and can also be polygonal, such as an elliptical shape or a square shape.
  • the inlet flow passage 19 is formed of a straight circular pipe, but can be other shapes such as a nozzle shape as long as it can flow a fluid into the vortex chamber 25.
  • the inlet flow passage 19 is provided so that the inlet flow passage central axis P1 passes through an eccentric position away from the vortex chamber central axis O. Therefore, the fluid flowing in from the inlet flow passage 19 hits the peripheral side wall 13 in the vortex chamber 25 and flows along the peripheral side wall 13, generating a swirling flow, which then flows toward the outlet flow passage 21 and flows out from the outlet flow passage 21.
  • the inlet flow passage 19 is provided so that the fluid flowing into the vortex chamber 25 from the inlet flow passage 19 flows along the peripheral side wall 13.
  • the outlet flow passage 21 can be provided at any position on the first end wall 15, as long as the fluid flowing into the vortex chamber 25 from the inlet flow passage 19 flows out from the outlet flow passage 21 after generating a vortex.
  • the outlet flow passage 21 may be provided so that the outlet flow passage central axis P2 extends through a position away from the inlet flow passage central axis P1 so that the fluid flowing into the vortex chamber 25 from the inlet flow passage 19 does not flow out from the outlet flow passage 21 as it is.
  • the inlet flow passage 19 extends in a tangential direction of the cylindrical circumferential side wall 13 and is connected to the circumferential side wall 13 such that the inlet flow passage central axis P1 is parallel to the tangent, and the fluid flows from the inlet flow passage 19 into the vortex chamber 25 in a direction substantially tangential to the circumferential side wall 13.
  • the outlet flow passage 21 opens to the first end wall 15 and is provided such that the outlet flow passage central axis P2 passes through the center of the first end wall 15, i.e., the outlet flow passage central axis P2 extends in alignment with the vortex chamber central axis O.
  • the confluence section 23 is configured to merge different types of fluids supplied from at least two fluid supply paths connected to different fluid supply sources and to flow into the vortex chamber 25 through the inlet flow path 19.
  • the confluence section 23 is configured by a T-shaped flow path in which one end of a sub-flow path 23b is connected to the middle of a linear main flow path 23a, one end of which is connected to the inlet flow path 19, and fluid A is supplied from the other end of the main flow path 23a and fluid B is supplied from the other end of the sub-flow path 23b, so that fluid A and fluid B are merged at the confluence section 23.
  • the shape of the confluence section 23 is not limited to a T-shape, and may be, for example, a Y-shape.
  • two or more sub-flow paths 23b may be connected to the main flow path 23a, and three or more types of fluids may be merged at the confluence section 23.
  • the main flow path 23a and the sub-flow path 23b that constitute the junction 23 are preferably straight pipes with a circular cross section, but are not limited to circular pipes and can be pipes with a cross section of any shape.
  • the pipe diameters (inner diameters) of the main flow path 23a and the sub-flow path 23b are preferably equal, but the pipe diameter (inner diameter) of the sub-flow path 23b may be smaller than the pipe diameter (inner diameter) of the main flow path 23a.
  • the inlet flow passage central axis P1 passes through an eccentric position away from the vortex chamber central axis O, and the outlet flow passage central axis P2 extends through a position away from the inlet flow passage central axis P1. Therefore, in the vortex chamber 25, the fluid flowing in from the inlet flow passage 19 hits the peripheral side wall 13 and flows along the peripheral side wall 13 to generate a swirling flow, which becomes a vortex flow toward the outlet flow passage 21 and flows out from the outlet flow passage 21.
  • the merged fluid containing different types of fluids and flowing in from the inlet flow passage 19 forms a vortex flow in the vortex chamber 25. Therefore, the merged fluid flowing in from the inlet flow passage 19 reduces the concentration variation (unevenness in concentration distribution) of the different types of fluids due to the stirring action of the vortex flow, and can reduce the radial concentration variation (unevenness in concentration distribution) of the different types of fluids in the inlet flow passage 19.
  • the inventors have also discovered that in a configuration in which the fluid flowing in from the inlet passage 19 swirls in the vortex chamber 25, generating a vortex flow and flowing out from the outlet passage 21 as described above, the swirling flow path that the fluid flowing in from the inlet passage 19 follows from the inlet passage 19 into the vortex chamber 25 and out from the outlet passage 21 varies depending on the radial position of the fluid flowing in the cross section of the inlet passage 19 perpendicular to the flow direction, i.e., the inlet passage central axis P1, and that the length of the streamline from when it flows in from the inlet passage 19 to when it flows out from the outlet passage 21 varies.
  • FIGS. 3 to 5 show the flow lines obtained by reproducing the flow of fluids located in regions H, I, and F by numerical simulation.
  • the fluid in region H flows from the inlet passage 19 to the outlet passage 21 through the vortex chamber 25 along the flow lines shown in FIG. 3, so the length of the vortex flow line in the vortex chamber 25 is short, and the fluid does not remain in the vortex chamber 25 for a long time before flowing out of the outlet passage 21.
  • the fluid in region I flows from the inlet passage 19 to the outlet passage 21 through the vortex chamber 25 along the flow lines shown in FIG. 4, so the length of the vortex flow in the vortex chamber 25 is slightly longer than the flow lines shown in FIG. 3, and it can be seen that the fluid remains in the vortex chamber 25 for a slightly longer time than the fluid flowing in region H before flowing out of the outlet passage 21.
  • the fluid in region F flows from the inlet passage 19 through the vortex chamber 25 to the outlet passage 21 along the flow lines shown in FIG. 5, so it can be seen that the length of the vortex in the vortex chamber 25 is longer than the flow lines shown in FIG. 4, and that the fluid remains in the vortex chamber 25 for a longer time than the fluid flowing in region I before flowing out of the outlet passage 21.
  • the vortex fluid mixer according to the present invention can reduce concentration variations (uneven concentration distribution) if it is configured to generate a swirling flow within the vortex chamber 25. Therefore, the vortex fluid mixer is not limited to the configuration of the embodiment shown in FIG. 1.
  • the second end wall may be formed by a diaphragm 17'.
  • the diaphragm 17' is driven by a drive unit (not shown) to approach and move away from the first end wall 15, thereby increasing and decreasing the volume of the vortex chamber 25 and adjusting the flow rate of the fluid in the vortex chamber 25.
  • the drive unit may employ various drive methods such as manual, air-driven, or electric.
  • a protrusion protruding into the vortex chamber 25 may be provided on the first end wall 15 or the second end wall 17 of the vortex fluid mixer.
  • FIG. 7 shows a vortex fluid mixer 61 according to a third embodiment in which a protrusion 63 is provided on the first end wall 15, and
  • FIG. 8 shows a vortex fluid mixer 71 according to a fourth embodiment in which a protrusion 63 is provided on the second end wall 17.
  • the position of the protrusion 63 is not limited as long as it is provided to hinder the vortex flow in the vortex chamber 25.
  • the protrusion 63 is arranged so that at least a part of the protrusion 63 overlaps with the extension of the inlet flow passage 19 into the vortex chamber 25 so that the swirling flow of the fluid flowing from the inlet flow passage 19 into the vortex chamber 25 collides with the protrusion 63 more quickly.
  • the protrusion 63 is columnar, and the cross section of the protrusion 63 can be any shape.
  • the cross section of the protrusion 63 can be, for example, a circle, an ellipse, a polygon such as a square, a triangle, or a diamond, or a plate.
  • the protrusion 63 is a cylinder with a circular cross section.
  • the fluid flows along the circumferential surface of the protrusion 63, so that the length of the flow line of the fluid from the inlet flow path 19 into the vortex chamber 25 to the outlet flow path 21 can be made longer than in the case where the protrusion 63 is not provided, and the stirring effect by the vortex (swirl flow) can be further enhanced.
  • the components common to the vortex fluid mixer 11 according to the first embodiment shown in Figure 1 are given the same reference numerals. Furthermore, components given the same reference numerals have similar configurations. Therefore, a description of the components common to the vortex fluid mixer 11 according to the first embodiment will be omitted here.
  • the vortex chamber 25 has a cylindrical shape with a diameter of 20 mm and a height of 4 mm, and a circular tubular inlet flow passage 19 with a diameter of 4 mm is connected to the peripheral side wall 13 so that the inlet flow passage central axis P1 passes through a position 7.5 mm away from the center of the vortex chamber 25.
  • the main flow passage 23a of the junction 23 is connected in a straight line to the extension of the inlet flow passage 19, and the right end of the main flow passage 23a in the figure passes through the center of the vortex chamber 25 and extends to a position 30 mm away from a line perpendicular to the inlet flow passage central axis P1, while the secondary flow passage 23b of the junction 23 is connected to the main flow passage 23a so that the central axis of the secondary flow passage 23b of the junction 23 passes through the center of the vortex chamber 25 and extends to a position 20 mm away from a line perpendicular to the inlet flow passage central axis P1.
  • the outlet flow passage 21 of the junction 23 is connected to the first end wall 15 so as to extend along the outlet flow passage central axis P2 aligned in a straight line with the vortex chamber central axis O. That is, the outlet flow passage 21 extends from the first end wall 15 along the outlet flow passage central axis P2 perpendicular to the first end wall 15 passing through the center of the first end wall 15.
  • the variation in fluid concentration (unevenness in concentration distribution) due to radial position in the inlet flow passage 19 and outlet flow passage 21 was confirmed by numerical simulation.
  • blue water was supplied to the main flow passage 23a of the junction 23 at 500 mL/min
  • red water was supplied to the secondary flow passage 23b at 500 mL/min, and they were merged at the junction 23.
  • the mixing of the blue water and red water was evaluated using the passive scalar as an index at a reference position just before the vortex chamber 25 of the inlet flow passage 19 and at a reference position just after the vortex chamber 25 of the outlet flow passage 21.
  • the passive scalar is a substitute index of concentration for the color of the mixed fluid, with red considered to be 1 (red water concentration is 100%) and blue considered to be 0 (red water concentration is 0%).
  • the passive scalar of the fluid in the inlet passage 19 was measured at a reference position determined at a position 15 mm from a line passing through the center of the vortex chamber 25 and perpendicular to the inlet passage central axis P1, and the passive scalar of the fluid in the outlet passage 21 was measured at a reference position determined at a position 15 mm from the first end wall 15 of the vortex chamber 25.
  • Figure 11 is a graph showing the change over time in the passive scalar of the fluid in the inlet flow path 19
  • Figure 12 is a graph showing the change over time in the passive scalar of the fluid in the outlet flow path 21.
  • the cross section at the reference position of the inlet flow path 19 and the outlet flow path 21 is divided into multiple regions to determine the passive scalar of the fluid in each region, and the change over time of the maximum value of the passive scalar of the fluid in each region is shown by a solid line, and the change over time of the minimum value is shown by a dashed line.
  • Fig. 13 shows the results of a numerical simulation performed under the same conditions as the above-mentioned numerical simulation to confirm the variation in fluid concentration (unevenness in concentration distribution) depending on the radial position in the inlet passage 19 and the outlet passage 21 using a vortex type fluid mixer 11 with the dimensions shown in Figs. 9 and 10.
  • Fig. 13 shows a graph comparing the length of the streamline that the fluid in each region follows from the vortex chamber 25 to the outlet passage 21 when the cross section of the reference position of the inlet passage 19 (position 15 mm from a line passing through the center of the vortex chamber 25 and perpendicular to the inlet passage central axis P1) is divided into nine regions from region A to region I as shown in Fig. 2. From Fig.
  • Figures 14 and 15 are graphs showing the change over time in the passive scalar (concentration index) of the fluid obtained in the inlet flow passage 19 and the outlet flow passage 21 when blue water and red water are alternately supplied to one of the inlet flow passage 19 and the outlet flow passage 21 in a numerical simulation using the vortex fluid mixer 11 configured as shown in Figures 9 and 10.
  • the vortex fluid mixer 11 used in the numerical simulation to obtain Figures 14 and 15 differs from the vortex fluid mixer 11 shown in Figures 9 and 10 in that the inlet flow passage 19 is a circular pipe with a diameter of 4 mm and a length of 15 mm, the junction 23 is omitted, and the outlet flow passage 21 is a circular pipe with a diameter of 3 mm and a length of 10 mm, but is otherwise the same.
  • the reference position of the inlet passage 19 was set to a position 15 mm from a line passing through the center of the vortex chamber 25 and perpendicular to the inlet passage central axis P1, and the reference position of the outlet passage 21 was set to a position 10 mm from the first end wall 15 of the vortex chamber 25.
  • Red water (passive scalar is 1 (red water concentration is 100%)) was supplied at 500 mL/min for 1 second to one of the reference positions of the inlet passage 19 and the outlet passage 21, and then blue water (passive scalar is 0 (red water concentration is 0%)) was supplied at 500 mL/min for 1 second, alternately, to the other of the reference position of the inlet passage 19 and the reference position of the outlet passage 21, and the passive scalar value of the fluid at the other of the reference position of the inlet passage 19 and the reference position of the outlet passage 21 was obtained.
  • FIG. 1 Red water concentration is 100%
  • FIG. 14 is a graph showing the change over time in the passive scalar of the fluid determined at the reference position of the outlet flow path 21 when blue water and red water are alternately supplied to the reference position of the inlet flow path 19, and for comparison, FIG. 15 is a graph showing the change over time in the passive scalar of the fluid determined at the reference position of the inlet flow path 19 when blue water and red water are alternately supplied to the reference position of the outlet flow path 21.
  • the value of the passive scalar of the fluid at the reference position is the average value of the passive scalar of the fluid in each region in the cross section at the reference position.
  • the vortex type fluid mixers 11, 51, 61, and 71 according to the present invention have been described above with reference to the illustrated embodiments, but the present invention is not limited to the illustrated embodiments.
  • a cylindrical vortex chamber 25 is used, but it is also possible to use an elliptical or polygonal cylindrical vortex chamber as long as a vortex can be generated within the vortex chamber 25.
  • one sub-flow path 23b is connected to the main flow path 23a at the confluence 23, and two types of fluids are joined, but two or more sub-flow paths 23b may be connected to the main flow path 23a at the confluence 23, and three or more types of fluids may be joined.
  • vortex fluid mixer 11 vortex fluid mixer 13 circumferential wall 15 first end wall 17 second end wall 17' diaphragm 19 inlet channel 21 outlet channel 23 merging section 25 vortex chamber 51 vortex fluid mixer 61 vortex fluid mixer 63 protrusion 71 vortex fluid mixer

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  • Accessories For Mixers (AREA)

Abstract

L'invention concerne un mélangeur de fluide de type à tourbillon (11) comprenant : une chambre à tourbillon (25) qui est définie par une paroi latérale périphérique cylindrique (13), et une première paroi d'extrémité (15) et une seconde paroi d'extrémité (17) qui sont prévues aux deux extrémités de la paroi latérale périphérique et se font face ; une voie d'écoulement d'entrée (19) qui s'ouvre sur la paroi latérale périphérique (13) ; une voie d'écoulement de sortie (21) qui s'ouvre sur la première paroi d'extrémité (15) ; et une partie de fusion (23) qui est prévue sur le côté amont de la voie d'écoulement d'entrée (19) et dans laquelle au moins deux voies d'alimentation en fluide fusionnent. La chambre à tourbillon (25) est conçue : de manière à former un tourbillon lorsque le fluide alimenté à partir desdites au moins deux voies d'alimentation en fluide et fusionné au niveau de la partie de fusion (23) s'écoule dans la chambre à tourbillon (25) par l'intermédiaire de la voie d'écoulement d'entrée (19) ; et de manière à ce que le fluide mélangé dans la chambre à tourbillon (25) sous la forme d'un tourbillon s'écoule hors de la voie d'écoulement de sortie (21).
PCT/JP2024/029088 2023-08-18 2024-08-15 Mélangeur de fluide de type à tourbillon Pending WO2025041702A1 (fr)

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JP2023133697A JP7457193B1 (ja) 2023-08-18 2023-08-18 渦流式流体混合器
JP2023-133697 2023-08-18

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WO2025041702A1 true WO2025041702A1 (fr) 2025-02-27

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PCT/JP2024/029088 Pending WO2025041702A1 (fr) 2023-08-18 2024-08-15 Mélangeur de fluide de type à tourbillon

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JP (1) JP7457193B1 (fr)
TW (1) TW202508699A (fr)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062769U (fr) * 1973-10-04 1975-06-07
JP2014128807A (ja) * 2008-02-08 2014-07-10 Purac Biochem Bv ボルテックスミキサーおよび過飽和溶液またはスラリーを得る方法
WO2018021217A1 (fr) * 2016-07-24 2018-02-01 株式会社テックコーポレーション Générateur de microbulles, procédé de génération de microbulles, dispositif d'aspiration et système d'aspiration
JP2018158291A (ja) * 2017-03-22 2018-10-11 国立大学法人横浜国立大学 混合装置及び混合方法
JP2022523117A (ja) * 2019-01-31 2022-04-21 モデルナティエックス インコーポレイテッド ボルテックスミキサならびにその関連する方法、システム、及び装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062769U (fr) * 1973-10-04 1975-06-07
JP2014128807A (ja) * 2008-02-08 2014-07-10 Purac Biochem Bv ボルテックスミキサーおよび過飽和溶液またはスラリーを得る方法
WO2018021217A1 (fr) * 2016-07-24 2018-02-01 株式会社テックコーポレーション Générateur de microbulles, procédé de génération de microbulles, dispositif d'aspiration et système d'aspiration
JP2018158291A (ja) * 2017-03-22 2018-10-11 国立大学法人横浜国立大学 混合装置及び混合方法
JP2022523117A (ja) * 2019-01-31 2022-04-21 モデルナティエックス インコーポレイテッド ボルテックスミキサならびにその関連する方法、システム、及び装置

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JP7457193B1 (ja) 2024-03-27
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