WO2013111789A1 - Mélangeur statique et dispositif utilisant le mélangeur statique - Google Patents

Mélangeur statique et dispositif utilisant le mélangeur statique Download PDF

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Publication number
WO2013111789A1
WO2013111789A1 PCT/JP2013/051347 JP2013051347W WO2013111789A1 WO 2013111789 A1 WO2013111789 A1 WO 2013111789A1 JP 2013051347 W JP2013051347 W JP 2013051347W WO 2013111789 A1 WO2013111789 A1 WO 2013111789A1
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Prior art keywords
static mixer
communication
channel
outlet
inlet
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PCT/JP2013/051347
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English (en)
Japanese (ja)
Inventor
花田　敏広
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旭有機材工業株式会社
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Publication of WO2013111789A1 publication Critical patent/WO2013111789A1/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
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B01F25/4323—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa using elements provided with a plurality of channels or using a plurality of tubes which can either be placed between common spaces or collectors
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B01F25/4323—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa using elements provided with a plurality of channels or using a plurality of tubes which can either be placed between common spaces or collectors
    • B01F25/43231—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa using elements provided with a plurality of channels or using a plurality of tubes which can either be placed between common spaces or collectors the channels or tubes crossing each other several times

Definitions

  • the present invention relates to a static mixer and a static mixer which are used to effectively stir the fluid flowing in the flow passage of fluid transport piping in various industries such as chemical plant, semiconductor manufacturing field, food field, medical field, bio field and the like. It relates to the fluid mixing device used.
  • FIG. 22 there is a mixer as shown in FIG. 22 as a static mixer attached to a fluid transport pipe to uniformly mix fluid flowing in a pipe (see, for example, Patent Document 1).
  • the mixer of FIG. 22 is comprised from the joining member 101 to which two plate-shaped members 101a and 101b were joined.
  • a zigzag groove 103 having a through hole 102 serving as an inlet or an outlet at one end is provided on each surface of the members 101a and 101b, and the surfaces provided with the grooves 103 are joined to each other.
  • Two flow paths 104 are formed in the space formed by the groove 103 surrounded by the members 101a and 101b. Also, the two flow paths 104 are arranged to cross each other.
  • the conventional mixer bonds the surfaces of the two plate-like members 101a and 101b to each other
  • normal plate materials have surfaces that are not completely flat, so these surfaces should be uniformly bonded. Is difficult, and locally there is a part where the bonding strength is weak, and there is a possibility that the surfaces may be easily separated.
  • an adhesive or the like used for joining may leak into the flow path 104, and the flow in the flow path 104 may be hindered.
  • a mixer is required which is free from the contamination of the flow path 104 caused by the fluid staying in the gap or the elution of the adhesive component from the adhesive etc. It is done.
  • the length of the mixer may be long.
  • the flow rate of the fluid to be mixed is increased, it is necessary to increase the cross-sectional area and length of the groove 103.
  • the thickness of the joining member 101 and joining of the members 101a and 101b Since the area of the surface is increased, there is a possibility that the procurement and forming process of the plate material and the joining of the members 101a and 101b become difficult.
  • An object of the present invention is to provide a static mixer which has a compact shape and which can be easily manufactured even if the flow rate of the fluid to be mixed is large and which can be easily installed on a piping line. Furthermore, it is an object of the present invention to provide an apparatus for mixing various dissimilar fluids.
  • Adjacent mixing cells are in direct communication with each other or through communication channels, An inlet channel is in communication with the branch point of the mixing cell located on the most upstream side of the branch points, The outlet channel is in communication with the confluence point of the mixing cells located on the most downstream side of the confluence points,
  • a static mixer is provided, characterized in that it is arranged in a wrapped state.
  • the mixing cell of the static mixer according to the present invention when the mixing cell of the static mixer according to the present invention is viewed from the length direction of the static mixer, at least a part of the axial surrounding surface of the branch channel of any mixing cell is Since the mixing cells are arranged so as to overlap with the axial surrounding surfaces of the branch flow paths of other mixing cells, the mixing cells can be efficiently arranged, and the static mixer can be made compact. For example, in the case of mixing difficult-to-mix fluids such as fluids having high viscosity, many mixing cells are required, but in the static mixer according to the present invention, the static mixer can be formed in a compact length. it can.
  • the mixing cell in the mixing cell, at least a part of the axis surrounding surface of the branch flow path of any mixing cell is the branch flow path of another mixing cell when viewed from the length direction of the static mixer.
  • the state of being disposed so as to overlap with the axial surrounding surface is referred to as "stacking", and this term shall be used herein.
  • branch point refers to a point at which the flow path branches from the flow path on the upstream side of the branch flow path by the branch flow path
  • junction point is branched at the branch point It refers to the point where the branch flow channels merge and flow into the flow channel downstream of the branch flow channel.
  • the axial surrounding surface of the branch flow channel means the surface surrounded by the flow channel axis passing through the center of the cross section of the branch flow channel of the mixing cell when viewed from the length direction of the static mixer. That is, “the length direction of the static mixer” refers to the direction in which the static mixer extends in its entirety.
  • the static mixer according to claim 1 wherein the center points of all the mixing cells are arranged on the same axis.
  • the mixing cells can be regularly stacked, and the static mixer can be formed more compactly.
  • the center point of the mixing cell does not refer to only the center of a specific periphery, for example, the center point of the mixing cell is not only the center point of the outer periphery of the mixing cell but the center of the inner periphery of the mixing cell It may be the center point of the middle line between the point and the outer and inner circumferences.
  • the center point of each mixing cell is disposed on a certain axis and each mixing cell is viewed from the axial direction, the axial surrounding surfaces of the flow path axis of the mixing cell are centered so that they overlap each other. Points may be set, for example, the center point of the outline of the surface formed by being surrounded by the mixing cell or the geometric center of gravity.
  • the mixing cells are formed in an annular shape having the same outer diameter, the shapes of the individual mixing cells can be made uniform, and the forming and processing of the mixing cells and the assembly of the static mixer It will be easier. Furthermore, by aligning the shapes of the mixing cells and arranging the center points of the mixing cells on the same axis, the center and outer diameter of each mixing cell can be aligned, which not only makes the static mixer more compact, but The heat insulating cover and the protective cover can be easily attached to the outer peripheral surface.
  • center points of the fluid inlet and the fluid outlet and center points of all the mixing cells are arranged on the same axis.
  • the static mixer according to any one of the above is provided.
  • the static mixer can be formed into a linear shape, the static mixer can be attached to the straight pipe portion which occupies most of the piping line, and the static mixer can be easily installed in the piping line. Can.
  • At least one of the inlet flow passage, the outlet flow passage, the branch flow passage, and the communication flow passage is provided with a portion where the flow passage cross-sectional shape changes.
  • the fluid in the flow path can be agitated, and the fluids can be efficiently mixed.
  • At least one of the inlet flow passage, the outlet flow passage, the branch flow passage, and the communication flow passage is provided with a portion where the flow passage cross-sectional area changes.
  • the branch flow passage communicates with the communication flow passage at a position eccentric to the flow passage central axis of the communication flow passage.
  • the fluid flowing into the communication channel from the branch channel since the fluid flowing into the communication channel from the branch channel generates a swirling flow along the inner wall of the communication channel, the fluid flowing through the communication channel can be efficiently stirred and mixed. can do. Furthermore, since it is possible to prevent the fluid flowing in the branch flow passage from strikingly colliding at the junction, pressure loss can be reduced.
  • the communication channel is extended in parallel with a straight line connecting the center points of the mixing cells, according to any one of claims 1 to 7.
  • Static mixer is provided.
  • the mixing cells can be easily communicated with each other by the shortened communication flow paths, so that the static mixer can be formed compact.
  • the communication channel intersects with a straight line connecting center points of the mixing cells, the static mixer according to any one of claims 1 to 7. Is provided.
  • the distance between the mixing cells can be narrowed while securing the length of the communication channel, and the static mixer can be made compact.
  • the invention of claim 10 comprises an element formed in a columnar shape, and a casing fitted with the outer peripheral surface of the element, and the element has a fluid inlet at one end face and the other end.
  • the fluid outlet on the end face a plurality of annular grooves communicating with the outer circumferential surface thereof, an inlet side communication groove communicating the fluid inlet and the annular groove, an outlet communicating the fluid outlet and the annular groove A side communication groove is formed, the branch flow channel is formed by the annular groove and the inner peripheral surface of the housing, and the inlet flow channel is formed by the inlet communication groove and the inner peripheral surface of the housing.
  • the element and the housing as described above, not only the mixing performance is excellent, but the number of parts is small, and the simple and compact shape is obtained, and the flow rate is increased. It is possible to realize a static mixer that can respond flexibly. Further, in this configuration, the adjacent annular grooves are in direct communication with each other, and the length of the flow path of the static mixer can be shortened, so that the processing time of the element can be shortened.
  • the invention of claim 11 comprises an element formed in a columnar shape, and a casing fitted with the outer peripheral surface of the element, and the element has a fluid inlet at one end face thereof and the other side.
  • An outlet-side communication groove communicating the outlet with the annular groove is formed, and the branch channel is formed by the annular groove and the inner peripheral surface of the housing, and the inlet-side communication groove and the inner periphery of the housing
  • the inlet channel is formed by the surface, the communication channel is formed by the intermediate communication groove and the inner circumferential surface of the housing, and the outlet channel is formed by the outlet communication groove and the inner circumferential surface of the housing 9.
  • the element and the housing as described above, not only the mixing performance is excellent, but the number of parts is small, and the simple and compact shape is obtained, and the flow rate is increased. It is possible to realize a static mixer that can respond flexibly. Further, the communication flow channel is formed in parallel with the axis connecting the center points of the respective annular grooves, and when the mixing cells 8 are communicated with each other, the communication channels can be easily communicated without using the communication holes in the oblique direction which is difficult to process The flow path 9 can be formed.
  • the invention of claim 12 comprises an element formed in a columnar shape, and a casing fitted to the outer peripheral surface of the element, and the element has the fluid inlet at the other end thereof and the other end.
  • An outlet-side communication hole communicating the fluid outlet and the annular groove is formed, the branch flow channel is formed by the annular groove and the inner circumferential surface of the housing, and the inlet-side communication hole, the intermediate communication hole,
  • the static mixer according to claim 7 or 9, wherein the outlet communication holes respectively define the inlet channel, the communication channel, and the outlet channel.
  • the element and the housing as described above, not only the mixing performance is excellent, but the number of parts is small, and the simple and compact shape is obtained, and the flow rate is increased. It is possible to realize a static mixer that can respond flexibly. Further, the communication channel intersects with the axis connecting the center points of the mixing cells, and the distance between adjacent annular grooves can be narrowed while securing the length of the communication channel, and the static mixer can be made compact. can do.
  • the static mixer according to any one of claims 1 to 12 and a flow path forming means for forming a flow path for merging and guiding a plurality of different types of fluids to the static mixer.
  • An apparatus is provided.
  • FIG. 6 is a partially enlarged schematic perspective view showing the inclination of a virtual plane B of a certain mixing cell with respect to the direction A. It is an A direction arrow line view of FIG. 2A. It is a perspective view which shows schematic structure of the modification of the static mixer which concerns on 1st embodiment of this invention. It is a perspective view showing a schematic structure of another modification of a static mixer concerning a first embodiment of the present invention. It is a perspective view showing a schematic structure of another modification of a static mixer concerning a first embodiment of the present invention. It is a perspective view showing a schematic structure of another modification of a static mixer concerning a first embodiment of the present invention. It is a perspective view showing a schematic structure of another modification of a static mixer concerning a first embodiment of the present invention.
  • the static mixer includes branch points 5a to 5d between an inlet channel 2 having a fluid inlet 1 which is an opening into which fluid flows and an outlet channel 4 which has a fluid outlet 3 which is an opening from which fluid flows. And a plurality of mixing cells 8a to 8d having branch points 7a to 7d, and branch points 7a to 7d for connecting the branch points 5a to 4d and the branch points 6a to 6d They are stacked in series via the communication channels 9a to 9c.
  • the inlet channel 2 of the static mixer is in communication with the branch point 5a of the mixing cell 8a on the most upstream side, and the outlet channel 4 is in communication with the junction 6d of the mixing cell 8d on the most downstream side.
  • the center points of the fluid inlet 1 and the fluid outlet 3 and all the mixing cells 8 are arranged on the same axis, and the communication channels 9a to 9c connect the center points of the mixing cells 8a to 8d. It is orthogonal to the axis.
  • the inlet channel 2, the branch channels 7a to 7d, the communication channels 9a to 9c, and the outlet channel 4 are formed in a circular shape in cross section.
  • all of the mixing cells 8a to 8d are formed in an annular shape having the same outer diameter.
  • FIG. 2B is a view on arrow A of FIG. 2A.
  • an axial enveloping surface 7ea (indicated by hatching in FIG. 2B) corresponds to a region surrounded by a flow path axis 7fa (indicated by a dotted line in FIG. 2B) passing through the cross sectional center of the branch flow path 7. )It is shown.
  • FIG. 1 when considering the static mixer of FIG. 1 from the direction A which is a direction coinciding with the length direction of the static mixer while considering FIG.
  • the branch channels 7a to 7d of the mixing cells 8a to d are Since the axis surrounding surface 7ea is parallel to the axis along which the direction A passes the center point of each mixing cell 8a to d and each mixing cell 8a to d has the same shape, the whole of the axis surrounding surface 7ea is mutually It is overlapping.
  • the mixing cell 8 at least a part of the axis surrounding surface 7ea of the branch channels 7a to 7d of any of the mixing cells 8a to 8d when viewed from the length direction of the static mixer As long as they are disposed so as to overlap with the axis surrounding surface 7ea of the branch flow paths 7a to 7d of d, that is, the mixing cells 8a to 8d may be disposed in a stacked state. As a result, the length of the static mixer can be made compact without expanding in the width direction.
  • the above-mentioned axial surrounding surface 7ea has the largest area when viewed from the length direction of the static mixer Thus, it is defined by selecting the flow path axis 7fa which becomes the outer edge of the axial surrounding surface 7ea.
  • the shape of the mixing cells 8a to d is an annular shape, but the shape of the mixing cells 8a to d merges with the branch points 5a to 5d and the junctions 6a to 6d and the branch points 5a to d, respectively.
  • the flow paths between the points 6a to 6d and the branch paths 7a to 7d are not limited in particular as long as they are branched and communicated.
  • the shape of the mixed cells 8a to 8d is, for example, a combination of a toric shape and a polygon, a twist or a partial or whole, and a twist in addition to a toric shape such as a circle and an oval, or a polygon such as a triangle or a quadrangle.
  • the sizes of the mixing cells 8a to 8d are equalized, but the sizes of the mixing cells 8a to 8d are not particularly limited, and the mixing cells 8 may have different sizes. You may form. In the present embodiment, by forming the mixing cells 8a to 8d in an annular shape having the same outer diameter, the forming and processing of the mixing cells 8a to 8d and the assembly of the static mixer are facilitated.
  • the inclinations of all the mixed cells 8a to 8d with respect to the direction A are aligned, but the inclinations are the virtual plane B in which the ring shape of the direction A and the mixed cells 8a to 8d is formed.
  • the mixing cells 8a to 8d may be disposed in any manner as long as they are stacked, and are not particularly limited. In the present embodiment, the mixing cells 8a to 8d are stacked such that the center points of all the mixing cells 8a to 8d are arranged on the same axis.
  • the mixing cells 8a to 8d By arranging the mixing cells 8a to 8d in this manner, the mixing cells 8a to 8d can be regularly stacked, and the static mixer can be made compact. Furthermore, the static mixer can be made more compact by aligning the center points, shapes, and angles of the mixing cells 8a to 8d, and accessories such as a heat insulating cover and a protective cover can be easily attached to the outer peripheral surface. It will be.
  • the fluid inlet 1 and the fluid outlet 3 of the static mixer may be formed anywhere on the outer peripheral surface of the static mixer, and is not particularly limited.
  • the fluid inlet 1 and the fluid outlet 3 are provided on both end faces of the static mixer, and the center point of the fluid inlet 1 and the fluid outlet 3 connects the center points of the respective mixing cells 8a to d It is arranged on the same axis.
  • the inlet flow channel 2, the branch flow channels 7a to 7d, the communication flow channels 9a to 9c, and the outlet flow channel 4 have the same length and thickness.
  • the thickness may be changed and is not particularly limited.
  • the branch flow channels 7a to 7d of the mixing cells 8a to 8d branch respectively at the same branch points 5a to 5d and merge at the same junctions 6a to 6d. It may be branched at branch points 5a to d different for each of 7a to 7d, or may be joined at different junction points 6a to 6d, and is not particularly limited.
  • the concentration is partially in the flow path
  • the concentrated and flowing chemical solution flows from the fluid inlet 1 into the inlet channel 2.
  • the chemical solution reaches the branch point 5a of the mixing cell 8a from the inlet channel 2
  • the chemical solution is branched and flows into the branch channel 7a.
  • the drug solutions merge while being collided and stirred, and flow into the communication channel 9a and flow downstream.
  • the drug solution flowing through the communication channel 9a reaches the branch point 5b of the next mixing cell 8b, the drug solution is branched in the same manner as when flowing through the branch point 5a, and reaches the junction 6b through the branch channel 7b. Are merged and mixed while being agitated and mixed, and flow into the communication channel 9b and flow downstream.
  • the drug solution flowing through the communication passage 9b flows into the mixing cell 8d through the mixing cell 8c and the communication passage 9c in the same manner as the mixing cells 8a and 8b and the communication passages 9a and 9b, and reaches the junction 6d of the mixing cell 8d. Do.
  • the chemical solution that has reached the junction 6 d is repeatedly stirred and mixed at the junctions 6 a to d of the four mixing cells 8 a to d, so that the concentration in the channel is equalized, and the fluid outlet 3 is passed through the outlet channel 4. Flow out of the static mixer.
  • the communication flow paths 9a to 9c are the junction points 6a to 6d of the mixing cells 8a to 8d and the branch points 5b to 5d of the other mixing cells 8b to 8d downstream of the mixing cells 8a to 8d. , And are formed orthogonal to the axis connecting the center points of the mixing cells 8a to 8d, but the communication flow paths 9a to 9c communicate with the adjacent mixing cells 8a to 8d.
  • the communication channel 9 is formed so that the angle formed by the communication channels 9a to c and the axis connecting the central points of the mixing cells 8a to d is inclined from 90 ° to the upstream side, the length of the communication channel 9 As a result, the distance between adjacent mixing cells 8a to 8d can be narrowed while securing a static mixer can be made more compact. Further, as shown in FIG. 3, the communication flow paths 9a to 9c may be formed in parallel with an axis connecting center points of the respective mixing cells 8a to 8d.
  • Channels 9a-c can be formed. It is particularly preferable when the lengths of the communication channels 9a to 9c do not significantly affect the mixing of the chemical solution flowing through the static mixer. Further, when the communication channels 9a to 9c having a sufficient length for mixing the chemical solutions collided and mixed at the joining points 6a to 6d are required, the communication channels 9a to 9c may be formed in a spiral shape.
  • the lengths of the communication flow channels 9a to 9c The static mixer can be made compact while lengthening. Further, when it is desired to further stir the chemical solution which has collided and stirred at the junction points 6a to 6d in the communication channels 9a to 9c, the communication channels 9a to 9c are made to meander to flow the chemical solution in the communication channels 9a to 9c. It is preferable to form the communication channels 9a to 9c so that the direction changes.
  • the inlet channel 2 having the fluid inlet 1 and the outlet channel 4 having the fluid outlet 3 are disposed so as to communicate with the mixing cell 8a on the most upstream side and the mixing cell 8d on the most downstream side.
  • the fluid inlet 1 and the fluid outlet 3 may be formed directly on the mixing cells 8a and 8d without forming the inlet channel 2 and the outlet channel 4.
  • the adjacent mixing cells 8a to 8d communicate with each other by the communication flow paths 9a to 9c, but as shown in FIG. 4, the adjacent mixing cells 8a to 8d communicate with each other. It may arrange so that it may be communicated, without intervening.
  • the branch points 5a to 5d and the junctions 6a to d of the mixing cells 8a to 8d are disposed at opposing positions on the mixing cells 8a to 8d. It may be disposed anywhere on the mixing cell 8, and is not particularly limited. As shown in FIG. 5, the branch point 5 and the junction point 6 may be arranged at different positions for each mixing cell 8.
  • the number of the branch channels 7a to 7d may be any number and is not particularly limited. As shown in FIG. 6, the number of branch channels 7 may be different for each mixing cell 8.
  • the static mixer is integrally formed of a tube continuous from the fluid inlet 1 to the fluid outlet 3, but as shown in FIG. 7, a plurality of components of the static mixer use the joint 10 or the like. It may be integrally joined to form a static mixer.
  • the length, shape, and thickness of the various channels of the static mixer can be changed widely and easily, so a wide range of designs should be designed according to the characteristics of the chemical flowing through the static mixer. Can.
  • mixing cell 8a although only one mixing cell 8a is connected from the inlet channel 2, a plurality of mixing cells are connected from the inlet channel 2 using the branch communicating channel 32 as shown in FIG.
  • the fluid flowing inside the respective mixing cells 8 may be repeatedly branched and merged to merge in the outlet channel 4.
  • FIG. 9 a static mixer according to a second embodiment of the present invention will be described with reference to FIG.
  • the second embodiment is different from the first embodiment in that the communication flow channel 9 is provided with a portion in which the cross-sectional shape of the flow channel changes.
  • symbol is attached
  • the communication flow channel 9 is provided with a portion in which the cross-sectional shape of the flow channel changes.
  • the cross-sectional shape of the communication channel 9 is continuous from a circular shape to an elliptical shape while maintaining the cross-sectional area from the junction 6 of the mixing cell 8 on the upstream side of the communication channel 9 to the middle portion of the communication channel 9 Is transformed into Furthermore, the cross-sectional shape of the communication channel 9 is continuously changed from an elliptical shape to a circular shape while maintaining the cross-sectional area from the middle portion of the communication channel 9 to the branch point 5 of the mixing cell 8 on the downstream side of the communication channel 9 Is transformed into
  • the chemical solution flowing into the inlet channel 2 from the fluid inlet 1 flows into the mixing cell 8 and flows into the branch channel 7 through the branch point 5.
  • the branch channel 7 reaches the junction 6, the branched chemical solutions collide and mix, and flow into the communication channel 9. Since the communication flow path 9 is continuously deformed again from a circular shape to an elliptical shape again into a circular shape while maintaining the cross-sectional area from the upstream side to the downstream side, the chemical solution flowing through the communication flow path 9 Is stirred and mixed inside the communication channel 9.
  • the chemical solution that has passed through all the mixing cells 8 and the communication channel 9 flows into the outlet channel 4 and flows out of the fluid outlet 3 to the outside of the static mixer.
  • the communication flow channel 9 is provided with a portion where the flow channel cross-sectional shape changes, but other flow channels may also be provided with a portion where the flow channel cross-sectional shape changes. It is not particularly limited. Moreover, in this embodiment, although the flow-path cross-sectional shape deform
  • the shape and range of the portion where the flow passage cross-sectional shape changes is appropriately designed in accordance with the characteristics of the chemical solution flowing through the static mixer.
  • a static mixer according to a third embodiment of the present invention will be described with reference to FIG.
  • the third embodiment is different from the first embodiment in that a branch channel is provided with a portion where the channel cross-sectional area changes.
  • symbol is attached
  • the branch channel 7 is provided with a portion where the channel cross-sectional area changes.
  • the branch channel 7 has the same channel cross-sectional area as the inlet channel 2 at the branch point 5, but the channel cross-sectional area continuously decreases from the branch point 5 to the junction 6.
  • the chemical solution flowing into the inlet channel 2 from the fluid inlet 1 flows into the mixing cell 8 and flows into the branch channel 7 through the branch point 5. Since the cross-sectional shape of the branch flow channel 7 continuously decreases from the branch point 5 to the junction 6, the flow velocity of the chemical flowing through the branch flow channel 7 becomes faster as it approaches the junction 6. When the branch flow channel 7 reaches the junction 6, the branched chemical solutions collide and mix, and flow into the communication flow channel 9. At this time, since the drug solution is accelerated in the branch flow path 7, it collides more violently and is mixed efficiently.
  • the chemical solution having passed through the communication flow channel 9 flows downstream, passes through all the mixing cells 8 and the communication flow channel 9, flows into the outlet flow channel 4, and flows out from the fluid outlet 3 to the outside of the static mixer.
  • the branch flow passage 7 is provided with a portion where the flow passage cross-sectional area changes, but a portion where the flow passage cross-sectional area changes may be provided in the flow passages other than the branch flow passage 7 It is not limited. Further, in the present embodiment, the flow passage cross-sectional area is changed to be continuously reduced, but the flow passage cross-sectional area may be changed in any way, and is not particularly limited. The area ratio, shape, and range of the portion where the flow passage cross-sectional area changes is appropriately designed in accordance with the characteristics of the fluid flowing through the static mixer.
  • the fourth embodiment is different from the first embodiment in that the branch flow channel 7 is eccentric to the flow channel central axis of the communication flow channel 9, that is, the axis passing through the central point of the flow channel cross section. It is a point in communication with 9.
  • symbol is attached
  • the branch flow channel 7 branches at a branch point 5 at a position eccentric to the flow channel central axis of the inlet flow channel 2 or the communication flow channel 9. Further, the branch flow channel 7 joins at a junction point 6 at a position eccentric to the flow channel central axis of the communication flow channel 9 or the outlet flow channel 4.
  • the branch flow channel 7 communicates with each other at a position eccentric to the flow channel central axis of the communication flow channel 9 or the outlet flow channel 4 at the junction point 6. Generate a swirling flow along the inner wall of the. Thereby, the chemical solution flowing through the communication flow channel 9 or the outlet flow channel 4 can be efficiently stirred, and the dead space in the communication flow channel 9 or the outlet flow channel 4 can be eliminated to prevent retention of the chemical solution. In addition, it is possible to reduce the pressure loss that occurs when the chemical solutions passing through the branch flow path 7 merge at the merging point 6. Further, the branch flow channel 7 is also in communication with each other at the branch point 5 at a position eccentric to the flow channel central axis of the inlet flow channel 2 or the communication flow channel 9.
  • the branch flow passage 9 is formed in the same direction as the swirling flow along the inner wall of the communication flow passage 9, the chemical solution flows into the branch flow passage 7 according to the flow generated in the communication flow passage 9.
  • the pressure loss at the branch point 5 can be reduced.
  • the branch flow channel 9 is formed along the inner wall of the communication flow channel 9 in a direction different from the flow that swirls the swirl, the flow direction of the chemical solution opposite to the flow generated in the communication flow channel 9 is rapidly changed. Since the liquid flows into the branch flow path 7, the chemical solution can be stirred and mixed effectively.
  • the branch flow path 7 joins the same location of the communication flow path 9 or the outlet flow path 4 in the same direction and at the same angle, but from different angles and different directions at different locations in each branch flow path 7 It may merge and is not particularly limited. Further, in the present embodiment, the branch flow channel 7 branches from the same place of the inlet flow channel 2 or the communication flow channel 9 in the same direction and at the same angle, but different angles and directions from different places in each branch flow channel 7 It may be branched from and not particularly limited.
  • the element 11 is made of polytetrafluoroethylene (hereinafter referred to as PTFE).
  • PTFE polytetrafluoroethylene
  • the element 11 is formed in a columnar shape, here in a cylindrical shape, the fluid inlet 1 is provided on one end face of the element 11, and the fluid outlet 3 is provided on the other end face.
  • the fluid inlet 1 and the fluid outlet 3 are disposed coaxially with the central axis of the element 11, and the inner peripheral surfaces of the fluid inlet 1 and the fluid outlet 3 of the element 11 are formed in a mortar shape.
  • a plurality of annular grooves 12 are provided on the outer peripheral surface of the element 11.
  • All annular grooves 12 have the same shape and the same groove width and groove depth, and the axis connecting the center points of the respective annular grooves 12 is arranged coaxially with the central axis of the element 11.
  • an inlet side communication hole 13 communicating the fluid inlet 1 with the annular groove 12 located closest to the fluid inlet 1, and an annular located near the fluid outlet 3 and the fluid outlet 3
  • An outlet communication hole 14 communicating with the groove 12 is provided inside the element 11.
  • an intermediate communication hole 15 communicating the adjacent annular grooves 12 with each other at the shortest distance is provided so as to intersect with an axis connecting the center points of the annular grooves 12.
  • the housing 16 is a tube made of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin (hereinafter referred to as PFA), and the inner diameter of the housing 16 is formed to be substantially the same as the outer diameter of the element 11.
  • PFA tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin
  • the branch flow path 7 is formed by the annular groove 12 of the element 11 and the inner circumferential surface of the housing 16.
  • the inlet communication hole 13, the outlet communication hole 14, and the intermediate communication hole 15 become an inlet flow passage 2, an outlet flow passage 4, and a communication flow passage 9, respectively.
  • the element 11 is disposed at the center of the inside of the housing 16, and the mail connectors 17 are attached to both ends of the housing 16. After the flare 18 is attached, the tightening nut 19 is screwed to the mail connector 17.
  • connection portions connecting upstream and downstream are formed.
  • the static mixer In the static mixer according to the present embodiment, all the flow paths are configured by the element 11 and the housing 16, and the number of parts is small. In addition, no gap other than the flow path exists between the element 11 and the housing 16 and the element 11 can be inserted into the housing 16 without using an adhesive, so the elution of the adhesive component Contamination of the flow path due to or liquid accumulation is reduced. Further, the shape of the element 11 is simple and can be easily molded by injection molding, and the shape of the housing 16 is also simple, so that a soft tube or a hard tube can be easily used. Therefore, it is possible to easily manufacture a static mixer according to the flow rate from a small flow rate to a large flow rate.
  • the static mixer according to the present embodiment can be easily installed inside a factory or a mixing apparatus.
  • the same shape is provided inside the housing 16 according to the characteristics of the chemical flowing through the static mixer and the mixing performance required for the static mixer.
  • a plurality of elements 11 having different shapes may be arranged.
  • the element 11 is integrally formed.
  • the element 11 is formed by arranging a plurality of element parts in which one mixing cell 8 is formed in series and integrally joining them. You may In this way, the flow path shape of the element 11 and the length of the flow path can be easily changed according to the characteristics of the chemical solution flowing through the static mixer and the mixing performance required for the static mixer.
  • the branch flow passage 7 even if the flow passage shapes and flow passage cross-sectional areas of the various flow passages of the inlet flow passage 2, the branch flow passage 7, the communication flow passage 9 and the outlet flow passage 4 are changed. Good. For example, as shown in FIG. 13, the groove depth of the annular groove 12 is made shallow continuously from the branch point 5 to the junction point 6 so that the cross-sectional area of the branch channel 7 becomes continuously smaller. It is also good. In this way, the flow velocity of the chemical solution flowing through the branch flow channel 7 is increased, and the chemical solution collides more violently at the junction 6 and is mixed efficiently.
  • FIG. 6 a static mixer according to a sixth embodiment of the present invention will be described with reference to FIG.
  • the sixth embodiment is different from the fifth embodiment in that a cap nut 20 and a flanged short tube 21 are used in the connecting portion.
  • symbol is attached
  • the element 11 is made of polyvinyl chloride (hereinafter referred to as PVC), and an annular groove is provided on the outer periphery of the fluid inlet 1 and the fluid outlet 3 respectively located on both end faces of the element 11
  • PVC polyvinyl chloride
  • an annular groove is also provided on the outer peripheral surfaces of both end portions of the element 11, and the water blocking member 33 is fitted in the annular groove.
  • the housing 16 is made of PVC and has a cylindrical shape.
  • the inner diameter of the housing 16 is formed substantially the same as the outer diameter of the element 11.
  • On the outer peripheral surface of both ends of the housing 16 a male screw portion to be screwed with the female screw portion of the cap nut 20 is provided.
  • the element 11 is disposed inside the housing 16, and the element 11 is fixed by the short flanged tube 21 attached to both ends of the housing 16 and the cap nut 20.
  • the cap nut 20 is made of PVC and is formed in a cylindrical shape. On the inner circumference of one end of the cap nut 20, a female screw is provided which is screwed to a male screw provided on the outer peripheral surface of both ends of the housing 16. The other end of the cap nut 20 is provided with an inner flange 22 protruding in the inner diameter direction.
  • the flanged short pipe 21 is made of PVC, and is composed of a short pipe portion 23 to which a pipe or the like is connected and a flange portion 24.
  • the outer diameter of the short tube portion 23 is smaller than the inner diameter of the inner flange portion 22 of the cap nut 20, and the inner diameter of the short tube portion 23 is approximately the same diameter as the inner diameters of the fluid inlet 1 and the fluid outlet 3 of the element 11. Is formed.
  • the outer diameter of the collar portion 24 is smaller than the inner diameter of the cap nut 20.
  • the flanged short tube 21 is sandwiched and fixed in a watertight state between the cap nut 20 and the housing 16 in a state in which the water blocking member 33 is interposed between the end face of the flange portion 24 and the end face of the element 11 ing.
  • connection portion is formed by the upstream and downstream sides and the cap nut 20 and the flanged short pipe 21. Therefore, in a field where a general piping member such as a PVC pipe is used It can be used suitably.
  • the element 11 is held and fixed by the cap nut 20 and the flanged short pipe 21.
  • the method of fixing the housing 16 and the element 11 may be adhesion, welding, screwing, etc. I will not.
  • the housing 16 is divided into two, the flange portion 25 is provided on the divided surface, and the flange portion 25 is connected by the ferrule joint 26. It is also good. Also, the connection portions at both ends of the housing 16 may be connected by the ferrule joint 26. In this way, the static mixer can be easily disassembled and assembled, and the static mixer can be cleaned easily and reliably.
  • a static mixer according to a seventh embodiment of the present invention will be described with reference to FIG.
  • the seventh embodiment is different from the fifth embodiment in that the fluid inlet 1 and the fluid outlet 3 are formed on the outer peripheral surface of the housing 16.
  • symbol is attached
  • a male screw portion for screwing on the housing 16 is provided on the outer peripheral surface of one end of the element 11.
  • An annular groove is provided on the outer peripheral surface in the vicinity of the male screw portion, and the water blocking member 33 is fitted into the inside thereof.
  • an outlet communication hole 14 communicating with the portion of the annular groove 12 which is orthogonal to the longitudinal axis of the element 11 and located at the most downstream position is provided.
  • an annular groove 12 and an intermediate communication hole 15 are formed in the element 11.
  • the housing 16 is formed in a bottomed cylindrical shape.
  • a male screw portion screwed with the female screw portion of the cap nut 20 formed in a bottomed cylindrical shape is provided on the outer peripheral surface of the end portion of the case 16 which does not have the bottom portion.
  • a female screw portion to be screwed with the male screw portion of the element 11 is provided on the inner peripheral surface of the end portion of the case 16 not having the bottom portion.
  • Female threaded openings 27 and 28 are provided on the outer peripheral surface of the housing 16 so as to penetrate the housing 16, and the female threaded opening 27 communicates with the annular groove 12 positioned on the most upstream side, and the fluid inlet 1
  • the internally threaded opening 28 communicates with the outlet communication hole to form the fluid outlet 3.
  • the configuration of the other parts of the static mixer according to the seventh embodiment and the action of uniformly mixing the chemical solutions are the same as in the fifth embodiment, and therefore the description thereof is omitted.
  • the fluid inlet 1 and the fluid outlet 3 are formed on the outer peripheral surface of the housing 16, and the axis connecting the fluid inlet 1 and the fluid outlet 3 is parallel to the central axis of the housing 16
  • the location for forming the fluid inlet 1 and the fluid outlet 3 may be the surface of the static mixer, and can be appropriately designed according to the surrounding piping conditions.
  • the fluid inlet 1 may be formed on the end face of the housing 16
  • the fluid outlet 3 may be formed on the outer peripheral surface of the other end of the housing 16
  • the static mixer may be installed on the curved pipe of the piping line.
  • FIG. 17 a static mixer according to an eighth embodiment of the present invention will be described.
  • the eighth embodiment is different from the fifth embodiment in that the mixing cells 8 are in communication with each other without passing through the communication channel 9.
  • symbol is attached
  • internal threads of the fluid inlet 1 and the fluid outlet 3 provided on both end surfaces of the element 11 are provided.
  • the inlet side communicating groove 29 communicating the fluid inlet 1 and the annular groove 12 portion located closest to the fluid inlet 1, and the position closest to the fluid outlet 3 and the fluid outlet 3 And an outlet-side annular groove 30 communicating with the annular groove 12.
  • the annular groove 12 provided on the outer peripheral surface of the element 11 is in direct communication with the adjacent annular groove 12. That is, all the mixing cells 8 are in communication without the communication channel 9.
  • the housing 16 is formed in a cylindrical shape, and the inner diameter of the housing 16 is formed to be substantially the same as the outer diameter of the element 11.
  • the inlet communication groove 29 and the outlet communication groove 30 of the element 11 form an inlet flow passage 2 and an outlet flow passage 4, respectively.
  • the element 11 and the housing 16 are watertightly fitted by shrink fitting.
  • the configuration of the other parts of the static mixer according to the eighth embodiment and the function of uniformly mixing the drug solution are the same as in the fifth embodiment, and therefore the description thereof is omitted.
  • the mixing cells 8 are in direct communication with each other, and the length of the flow path of the static mixer can be shortened, so the processing time can be shortened.
  • the ninth embodiment differs from the fifth embodiment in that the communication flow channel 9 is extended so as to be parallel to the axis connecting the center points of the respective mixing cells 8.
  • symbol is attached
  • an intermediate communication groove 31 communicating the adjacent annular grooves 12 is extended on the outer peripheral surface of the element 11 so as to be parallel to the axis connecting the center points of the respective mixing cells 8.
  • An outlet side communication groove 30 communicating with the annular groove 12 is provided.
  • the configuration other than the above-described configuration of the static mixer according to the ninth embodiment and the function of uniformly mixing the drug solution are the same as those of the fifth embodiment, and thus the description thereof is omitted.
  • the communication flow channel 9 is extended in parallel with the axis connecting the center points of the mixing cells 8, and when the mixing cells 8 are communicated with each other, oblique directions in which processing is difficult
  • the communication channel 9 can be easily formed without using the communication hole of the above.
  • the flow passage shape and the flow passage cross-sectional area of the inlet flow passage 2, the branch flow passage 7, the communication flow passage 9, the outlet flow passage 4 and the like may be changed.
  • the uneven portion 34 is formed on the bottom surface of the intermediate communication groove 31, the chemical solution flowing through the communication channel 9 is agitated, and the chemical solution is efficiently mixed.
  • a static mixer according to an embodiment of the present invention is applied to a line through which the fluid flows, for example, in a state where the temperature or concentration of the fluid is uneven, and the temperature or concentration of the fluid in the line is equalized by using the static mixer.
  • the fluid that can be mixed using the static mixer according to the embodiment of the present invention is not particularly limited as long as it is a fluid, but is particularly suitable for a fluid having a high viscosity.
  • FIG. 20 is a view showing an example of an apparatus using a static mixer according to the present invention.
  • the static mixer 46 according to the present invention is disposed downstream of the joining portion 43 of the lines 41 and 42 through which the two substances flow.
  • Each substance is supplied by pumps 44 and 45, respectively.
  • the mixing ratio may vary, but the static mixer 46 can make the temperature and the concentration constant.
  • the substance at this time may be gas, liquid, solid, powder or the like, and solid or powder may be previously mixed with gas or liquid.
  • the apparatus may be configured to combine lines in which three or more substances flow, and three or more substances may be mixed by a static mixer.
  • FIG. 21 is a view showing a modified example of the device of FIG.
  • the static mixer 50 according to the present invention is disposed downstream of the joining portion 49 of the lines 47 and 48 through which two substances flow, and the line 51 where other substances flow downstream of the static mixer 50 joins A junction portion 52 is provided, and the static mixer 53 according to the present invention is also disposed downstream of the junction portion 52.
  • the static mixer 53 according to the present invention is also disposed downstream of the junction portion 52.
  • a heater or a vaporizer may be provided on each line through which the fluid flows, and the heat exchanger on the downstream side of the static mixer. May be provided.
  • a controller is disposed on the line through which one substance flows before the fluid merges, and a control unit is provided to adjust the output of the pump on the line through which the other substance flows according to the parameter measured by the meter.
  • a control valve may be disposed in the other material flow line, and a control valve may be provided to adjust the degree of opening of the control valve in accordance with the parameters of the meter.
  • the meter may be a flow meter, a flow meter, a densitometer, or a pH meter as long as it can measure the necessary fluid parameters. Moreover, you may install a static mixer in the flow path of the downstream of the confluence
  • the static mixer according to the present invention may be mounted on a device from which the mixed fluid is discharged.
  • the device from which the mixed fluid is discharged include a molding machine, an extruder, and a coating device for an adhesive.
  • a static mixer may be disposed between the nozzle of the molding machine and the mold for injection molding
  • a static mixer may be disposed between the extruder and a die.
  • the adhesive may be applied by disposing a static mixer at the tip of the adhesive application device.
  • each component such as the element 11 and the casing 16 of the static mixer according to the present invention may be any of PVC, polypropylene, polyethylene and the like as long as it is made of resin.
  • a fluorocarbon resin such as PTFE, PFA or polyvinylidene fluoride.
  • part or all of the element 11 or the housing 16 may be formed of a transparent or translucent material, and in this case, it is preferable because the state of mixing of the fluid can be visually confirmed.
  • the material of each component may be a metal or alloy such as iron, copper, copper alloy, brass, aluminum, stainless steel, titanium or the like.
  • the flow channel shape and flow channel cross-sectional area of various flow channels are the characteristics of the fluid flowing through the static mixer and the degree of mixing. It can design suitably according to and is not limited in particular. For example, when it is desired to prevent liquid pooling in the flow path, it is preferable to make the cross-sectional shape of the bottom of the flow path circular and to make the boundaries between the flow paths smooth. Further, when it is desired to stir the fluid in the channel to promote mixing, it is preferable to meander the channel, change the width of the channel, or change the depth of the channel. Moreover, you may mount the stirring means comprised from another components in the inside of a flow path.
  • the grooves forming the various channels such as the annular groove 12 are provided on the outer peripheral surface of the element 11, but the groove such as the annular groove 12 is formed between the element 11 and the housing 16 If it exists, you may provide the groove
  • the first to ninth embodiments may be arbitrarily combined to constitute a static mixer. That is, the present invention is not limited to the static mixer of the embodiment as long as the features and functions of the present invention can be realized.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)

Abstract

La présente invention concerne un mélangeur statique dans lequel : de multiples cellules de mélange (8) sont disposées en série entre un canal d'écoulement d'entrée (2) ayant une entrée de fluide (1) et un canal d'écoulement de sortie (4) ayant une sortie de fluide (3), les cellules de mélange ayant des points de ramification (5) et des points de confluence (6) et des canaux d'écoulement ramifiés (7) qui font des ramifications et se lient entre les points de ramification et les points de confluence; des cellules de mélange adjacentes communiquent entre elles directement ou par l'intermédiaire d'un canal d'écoulement de communication (9); parmi les points de ramification, le canal d'écoulement d'entrée communique avec le point de ramification de la cellule de mélange positionnée sur le côté le plus en amont; et parmi les points de confluence, le canal d'écoulement de sortie communique avec le point de confluence de la cellule de mélange positionnée sur le côté le plus en aval. Les cellules de mélange sont disposées de telle façon que, lorsqu'elles sont vues depuis la direction longitudinale du mélangeur statique, au moins une partie de l'enceinte axiale (7ea) des canaux d'écoulement ramifiés d'une cellule de mélange choisie recouvre l'enceinte axiale des canaux d'écoulement ramifiés d'une autre cellule de mélange.
PCT/JP2013/051347 2012-01-23 2013-01-23 Mélangeur statique et dispositif utilisant le mélangeur statique WO2013111789A1 (fr)

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EP2915581A1 (fr) * 2014-03-06 2015-09-09 Fluitec Invest AG Mélangeur statique
EP3207980A4 (fr) * 2014-10-14 2018-07-04 Alps Electric Co., Ltd. Dispositif de mélange de fluides
JP2019503271A (ja) * 2016-01-06 2019-02-07 ザ・ユニバーシティ・オブ・ブリティッシュ・コロンビア 分岐ミキサー並びにその使用及び製造方法
CN112924603A (zh) * 2021-04-02 2021-06-08 浙江福立分析仪器股份有限公司 适用于超高效液相色谱系统的小体积高效在线静态混合器
US11377737B2 (en) 2016-06-01 2022-07-05 Asm Ip Holding B.V. Manifolds for uniform vapor deposition
US11492701B2 (en) 2019-03-19 2022-11-08 Asm Ip Holding B.V. Reactor manifolds
US11830731B2 (en) 2019-10-22 2023-11-28 Asm Ip Holding B.V. Semiconductor deposition reactor manifolds
US11938454B2 (en) 2015-02-24 2024-03-26 The University Of British Columbia Continuous flow microfluidic system

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Publication number Priority date Publication date Assignee Title
EP2915581A1 (fr) * 2014-03-06 2015-09-09 Fluitec Invest AG Mélangeur statique
EP3207980A4 (fr) * 2014-10-14 2018-07-04 Alps Electric Co., Ltd. Dispositif de mélange de fluides
US11938454B2 (en) 2015-02-24 2024-03-26 The University Of British Columbia Continuous flow microfluidic system
JP2019503271A (ja) * 2016-01-06 2019-02-07 ザ・ユニバーシティ・オブ・ブリティッシュ・コロンビア 分岐ミキサー並びにその使用及び製造方法
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US11377737B2 (en) 2016-06-01 2022-07-05 Asm Ip Holding B.V. Manifolds for uniform vapor deposition
US11492701B2 (en) 2019-03-19 2022-11-08 Asm Ip Holding B.V. Reactor manifolds
US11830731B2 (en) 2019-10-22 2023-11-28 Asm Ip Holding B.V. Semiconductor deposition reactor manifolds
CN112924603A (zh) * 2021-04-02 2021-06-08 浙江福立分析仪器股份有限公司 适用于超高效液相色谱系统的小体积高效在线静态混合器

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