WO2013047393A1 - Fluid mixer - Google Patents

Fluid mixer Download PDF

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Publication number
WO2013047393A1
WO2013047393A1 PCT/JP2012/074294 JP2012074294W WO2013047393A1 WO 2013047393 A1 WO2013047393 A1 WO 2013047393A1 JP 2012074294 W JP2012074294 W JP 2012074294W WO 2013047393 A1 WO2013047393 A1 WO 2013047393A1
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WO
WIPO (PCT)
Prior art keywords
fluid mixer
flow path
spiral
fluid
opening
Prior art date
Application number
PCT/JP2012/074294
Other languages
French (fr)
Japanese (ja)
Inventor
花田　敏広
岡田　貴弘
Original Assignee
旭有機材工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 旭有機材工業株式会社 filed Critical 旭有機材工業株式会社
Publication of WO2013047393A1 publication Critical patent/WO2013047393A1/en

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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
    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431972—Mounted on an axial support member, e.g. a rod or bar
    • 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
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B01F25/45211—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial

Definitions

  • the present invention relates to a fluid mixer used for fluid transportation piping in various industries such as a chemical factory, a semiconductor manufacturing field, a food field, a medical field, and a bio field, and more particularly to a fluid mixer that has no mixing directivity and excellent workability. .
  • FIG. 7 there is a fluid mixer as shown in FIG. 7 as a fluid mixer that is attached to a fluid transport pipe and uniformly mixes the fluid flowing in the pipe (for example, see Patent Document 1).
  • the fluid mixer shown in FIG. 7 has a configuration in which elements 102 having joints 103 at both ends are arranged in a casing 101 and fixed by tightening a cap nut 104.
  • An inlet channel 105 is provided inside the element 102, and a spiral groove 108 that forms a spiral channel 107 with the inner peripheral surface of the housing 101 is provided on the outer peripheral surface of the element 102. It is connected to the flow path 107.
  • a plurality of communication holes 109 are provided on the bottom surface of the spiral groove 108, and the communication holes 109 serve as a branch channel 110 that communicates the main channel 106 with the spiral channel 107. Further, the main channel 106 is connected to the outlet channel 111.
  • the mixing direction of the conventional fluid mixer is determined by the shape of the element 102. If the fluid mixer is connected to the pipe with the wrong mixing direction, the original performance may not be achieved depending on the usage conditions. In that case, it is necessary to remove the fluid mixer from the piping line and connect it again to the piping line in the correct mixing direction, which may increase the construction time and affect the operation of the equipment. In particular, in the food field and the pharmaceutical field where pipe lines are frequently disassembled and cleaned, a fluid mixer having no mixing directivity is required in order to eliminate connection errors in the fluid mixer.
  • the element 102 depending on various conditions such as the fluid characteristics such as the viscosity and specific gravity of the mixed fluid and the required degree of mixing, it is necessary to increase the length of the element 102 or to complicate the shape. As the element 102 becomes longer and more complicated, the formation of deep holes such as the main channel 106, long grooves such as the spiral groove 108, and holes formed at predetermined positions in the circumferential direction such as the communication holes 109 are formed. May be difficult and may require a large and high-performance processing machine and molding machine. Further, in order to prevent problems such as misalignment and rough skin, the processing conditions and molding conditions are also more difficult, and these operations may be advanced.
  • An object of the present invention is to provide a fluid mixer having a configuration that can be easily formed without a mixing directivity direction even though an element having a mixing directivity is used.
  • a fluid mixer having a casing having a first opening and a second opening, and an element located inside the casing, has mixing directivity and A fluid mixer is provided in which the elements formed in the same shape are arranged in a state of being opposed to each other on the flow path axis inside the casing.
  • the elements formed in the same shape are arranged in a state of being opposed to each other on the flow path axis inside the casing. It becomes possible to mix fluids without considering directivity, and therefore, it is possible to prevent a construction failure due to a wrong mixing directivity direction during pipe construction.
  • the length per element can be shortened compared to the case where only one element is provided in a fixed casing. Can be made easier.
  • the “mixing direction” means that when the fluid flows from one of the fluid mixers and when the fluid flows from the other, the mixing performance differs depending on the direction of flowing the fluid. In order to obtain excellent mixing performance, it refers to the direction in which the fluid flows through the fluid mixer, and the property in which the mixing performance varies depending on the direction in which the fluid flows is referred to as “mixing directivity”. For example, when the mixing direction of a fluid mixer is determined by an element, the element can be referred to as an “element with mixing direction”.
  • “same shape” means that two objects have the same or almost the same shape.
  • the first element is provided with a concave portion and the second element is provided with a convex portion in order to engage the element at each end face, the first element is provided if the mixing performance of the fluid mixer is substantially the same.
  • the shape of the second element can be referred to as “the same shape”.
  • the element configuration includes a twisted shape or a spiral shape
  • the twisted shape or Even when the spiral turning directions are different from each other the shapes of the first element and the second element can be referred to as “the same shape”.
  • a fluid mixer in which the pair of elements arranged in the casing are arranged apart from each other.
  • the element is formed with a spiral groove on the outer peripheral surface of the element in at least a part between the one end and the other end, and an opening is formed in the other end.
  • a fluid mixer wherein the main channel is formed substantially coaxially with the central axis of the spiral of the spiral groove, and a plurality of communication holes are respectively formed so as to communicate the spiral groove with the main channel.
  • a fluid mixer having excellent mixing performance can be realized by forming the element defined by this claim.
  • the plurality of spiral grooves having the same shape are provided on the outer peripheral surface of the element, and the spiral grooves are formed at regular intervals in the flow path axis direction.
  • a fluid mixer is provided.
  • a fluid mixer having excellent mixing performance can be realized by forming the fluid mixer defined by this claim.
  • the fluid mixer does not have mixing directivity, so that it is possible to prevent construction failure due to a mistake in the mixing directivity direction during pipe construction.
  • the length of the element can be shortened, the molding process can be facilitated.
  • FIG. 1 is a longitudinal sectional view showing a schematic configuration of a fluid mixer according to a first embodiment.
  • elements 7 having mixed directivity and formed in the same shape are arranged in a casing 1 having openings at both ends in a state of facing each other on the flow path axis in the casing 1.
  • a fluid mixer is formed.
  • the housing 1 has a first opening 23a and a second opening 23b, and includes a main body 2, a joint 3, a cap nut 4, a flange-type pipe joint 5, and a retaining ring 6.
  • the main body 2 is made of PVC (polyvinyl chloride) and has a substantially cylindrical shape.
  • the inner diameter of the main body 2 is slightly larger than the outer diameter of the outer peripheral surface of the element 7.
  • the element 7 is inserted into the housing 1, and a spiral flow path 9 is formed from the inner peripheral surface of the main body 2 and the spiral groove 8 of the element 7.
  • the main body 2 may be formed so as to be divided in order to facilitate the molding process and to facilitate cleaning of the inner peripheral surface.
  • the element 7 is made of PTFE (polytetrafluoroethylene) and is formed in a substantially cylindrical shape. Since the first element 7a and the second element 7b have the same shape, the following description will be made mainly with the first element 7a as a representative.
  • a spiral groove 8 is formed on the outer peripheral surface of the first element 7a so that the depth gradually decreases from one end surface toward the other end side.
  • the spiral groove 8 has a groove extending to one end surface, and is formed so that the groove does not reach the other end surface.
  • An opening 10 is formed on the other end surface of the first element 7a, and a cylindrical shape and a conical shape are combined toward the periphery of the end surface where the spiral groove 8 extends from the opening 10 (ie, the spiral end portion 11).
  • the bottomed hole 12 having such a shape is formed, and the bottomed hole 12 serves as the main flow path 13 in the present embodiment.
  • the first element 7a is formed so that the thickness between the bottom surface of the spiral groove 8 and the inner peripheral surface of the bottomed hole 12 is substantially equal, and at least a part of the first element 7a is an open end portion.
  • the conical shape is reduced in diameter from 14 toward the spiral end 11.
  • the groove width of the spiral groove 8 is formed so as to gradually increase from the opening end portion 14 provided with the opening 10 to the spiral end portion 11.
  • a communication hole 15 communicating with the main flow path 13 is opened substantially linearly in the radial direction at a predetermined position in the circumferential direction.
  • a branch channel 16 that branches from the main channel 13 and connects to the spiral channel 9 is formed by these communication holes 15.
  • the swirling directions of the spiral grooves 8 of the first element 7a and the second element 7b are the same, but the mixing performance when the fluid is flowed from the first opening 23a side and the fluid from the second opening 23b side. As long as there is no difference in mixing performance when flowing, the turning directions of the spiral grooves 8 may be different from each other.
  • An engaging portion 17 protruding in the outer diameter direction is provided at the opening end portion 14 of the first element 7a.
  • the outer diameter of the engaging portion 17 is slightly smaller than the inner diameter of the first cap nut 4a, and is larger than the inner diameter of the first joint 3a.
  • the engaging portion 17 determines the assembly position of the first element 7a by engaging with the end face of the first joint 3a. Further, when the fluid mixer is assembled, the first element 7a can be inserted into the first joint 3a from only one direction when the fluid mixer is assembled. It is possible to prevent the element 7a from being attached in the wrong direction.
  • An annular groove 19 is provided on the outer peripheral edge of the opening 10 of the first element 7a in which a water stop member 18 for maintaining the first element 7a and the first flange-type pipe joint 5a in a watertight state is mounted.
  • a male screw portion 20 that is screwed into the female screw portion 27 of the first joint 3a is provided at a portion of the engaging portion 17 on the spiral end portion 11 side.
  • connection method of the 1st element 7a and the 1st coupling 3a is not specifically limited, As a suitable thing, the connection by screw connection or a bayonet structure is mentioned.
  • An annular groove 22 in which a water stop member 21 for maintaining the first element 7a and the first joint 3a in a watertight state is mounted is provided in a portion of the male screw portion 20 on the spiral end portion 11 side. Further, if the engagement portion 17 is chamfered to provide a tool hook portion, the first element 7a can be easily connected to the first joint 24a.
  • the joint 3 is made of PVC and has a substantially cylindrical shape. Since the first joint 3a and the second joint 3b have the same shape, the following description will be made mainly with the first joint 3a as a representative.
  • the first joint 3a is formed so that the inner diameter is slightly larger than the outer diameter of the main body 2 and the inner diameter is slightly larger than the outer diameter of the outer peripheral surface of the first element 7a. It is comprised from the reduced diameter part 25 which is.
  • a male threaded portion 26 into which the first cap nut 4a is screwed is formed on the outer peripheral surface of the first joint 3a on the reduced diameter portion 25 side, and the first element is formed on the inner peripheral surface of the end portion on the reduced diameter portion 25 side.
  • a female screw portion 27 to which 7a is screwed is formed.
  • the inner peripheral surface of the trunk portion 24 and the outer peripheral surface of the main body 2 are integrally connected by bonding, and the reduced diameter portion 25 and the first element 7 a are maintained in a watertight state by the water stop member 21.
  • the main body 2 and the joint 3 may be formed integrally.
  • the cap nut 4 is made of PVC and is formed in a substantially cylindrical shape. Since the first cap nut 4a and the second cap nut 4b have the same shape, the following description will be made mainly with the first cap nut 4a as a representative.
  • On the inner periphery of one end portion there is provided a female screw portion 28 that is screwed into a male screw portion 26 provided on the outer periphery of the reduced diameter portion 25 of the first joint 3a.
  • the other end portion is provided with an inner flange portion 29 protruding in the inner circumferential direction.
  • the first cap nut 4a is screwed into the first joint 3a in a state where the inner flange portion 29 is in contact with the end surface of the flange portion 34 of the first retaining ring 6a, thereby fixing the first flange-type pipe joint 5a. .
  • the flange type pipe joint 5 is made of PVC. Since the first flange-type pipe joint 5a and the second flange-type pipe joint 5b have the same shape, the first flange-type pipe joint 5a will be mainly described below.
  • the first flange-type pipe joint 5 a includes a short pipe part 30 and a flange part 31.
  • the outer diameter of the short pipe portion 30 is formed smaller than the inner diameter of the inner flange portion 29 of the first cap nut 4a, and is formed to have the same diameter as or substantially the same diameter as the maximum diameter of the bottomed hole 12 of the first element 7a.
  • An annular groove portion 32 for fitting the first retaining ring 6 a is provided on the outer peripheral surface of the short tube portion 30.
  • the retaining ring 6 is made of PVDF (polyvinylidene fluoride) and has a substantially cylindrical shape. Since the first retaining ring 6a and the second retaining ring 6b have the same shape, the first retaining ring 6a will be mainly described below.
  • a fitting portion 33 that protrudes in the inner diameter direction and fits in the annular groove portion 32 of the first flange-type pipe joint 5a is formed on the inner peripheral side of the one end portion.
  • a flange portion 34 formed in a step difference from the fitting portion 33 is formed on the outer peripheral surface of the other end portion.
  • the outer diameter of the flange 34 is formed larger than the inner diameter of the inner flange 29 of the first cap nut 4a.
  • the first retaining ring 6a is provided with a notch that cuts off the circumference.
  • the first retaining ring 6a is attached to the annular groove 32 of the first flange-type pipe joint 5a after expanding its diameter like a C-shaped retaining ring.
  • FIG. 3 is the same view as FIG. 1, but is a drawing prepared for easier understanding of the operation of the fluid mixer according to the first embodiment.
  • the branch flow paths 16C and 16D are the same as the chemical liquid flowing into the branch flow paths 16A and 16B. And flows downstream through the spiral flow path 9.
  • the chemical liquid flowing through the branch flow path 16D has the shortest flow path length from the first opening 23a to the gap 35 between the first element 7a and the second element 7b. Therefore, the chemical liquid flowing through the branch flow path 16D flows out from the first element 7a and flows into the gap 35 in a shorter time than the chemical liquid flowing through the branch flow paths 16A to 16C. Thereafter, the chemical solution that has passed through the branch flow paths in the order of the branch flow paths 16A, 16B, and 16C flows out of the first element 7a and flows into the gap 35 while causing a time difference in the order of the branch flow paths 16C, 16B, and 16A. To do.
  • the chemical solution that is partially concentrated in the pipe flows in approximately four times with a time lag by the first element 7a, and is mixed with the chemical solution that is not concentrated in concentration.
  • the concentration distribution in the direction in which the fluid flows can be evenly and uniformly mixed.
  • the gap 35 is provided between the first element 7a and the second element 7b.
  • the gap 35 may or may not be provided.
  • the gap 35 it is possible to absorb an error in the assembly position of the element 7 caused by a dimensional error of each part or an assembly error during assembly when the fluid mixer is assembled, and the assembly can be facilitated.
  • the gap 35 is not provided, the space between the surfaces of the element 7 can be made as small as possible. This is particularly suitable when the fluid mixer is installed in a narrow space such as the inside of the apparatus.
  • medical solution which flowed into the clearance gap 35 flows into the spiral flow path 9 of the 2nd element 7b.
  • the chemical liquid that has flowed into the spiral flow path 9 passes through the second element 7b in the reverse order to the first element 7a, and flows out of the fluid mixer through the second opening 23b. That is, when the chemical liquid that has flowed into the spiral flow path 9 of the second element 7b flows through the connecting portion of the branch flow path 16E, a part of the chemical liquid flows through the branch flow path 16E and flows downstream through the main flow path 13. .
  • the remaining chemical liquid flows to the downstream side of the spiral flow path 9, and when flowing through the connecting portion of the branch flow path 16 ⁇ / b> F, a part of the chemical liquid flows through the branch flow path 16 ⁇ / b> F to the downstream side through the main flow path 13. Further, the remaining chemical liquid flows to the downstream side of the spiral flow path 9 and flows through the connecting portions of the branch flow paths 16G and 16H. As with the chemical liquid flowing into the branch flow paths 16E and 16F, And flows downstream through the main channel 13. Accordingly, the chemical solution that has flowed into the second element 7b flows in approximately four times with a time difference by the second element 7b, as in the case of passing through the first element 7a. The distribution can be made uniform and more uniform.
  • the element 7 itself has mixing directivity, but the element 7 is arranged in the casing in a state of being opposed on the flow path axis in the casing 1. In this manner, by disposing the element 7, the fluid can be mixed in the same way regardless of whether the fluid flows from either the first opening 23 a or the second opening 23 b. Therefore, when connecting a fluid mixer to piping, it is not necessary to pay attention to the mixing directivity direction, and it is possible to prevent a construction failure due to a mistake in the mixing directivity direction. This is particularly effective in the food field and the pharmaceutical field where the piping line is disassembled and cleaned on a daily basis.
  • the pair of elements 7 having the same shape is arranged in the casing, so that the length of the element 7 is made longer than that in the case where the elements that match the length of the casing 1 are integrally formed. It can be shortened and the molding process can be facilitated. In general, even an element with a simple structure becomes difficult to form as the length of the element increases. In addition, if the element is provided with deep holes or complicated grooves, the molding process is particularly difficult, and problems such as misalignment and rough skin are likely to occur.
  • the length of the element 7 can be shortened, it becomes easy to clean the fluid mixer when disassembling and cleaning it. In particular, this has a great effect in the food field, the pharmaceutical field, and the like where the piping member is disassembled and cleaned on a daily basis.
  • the main flow path 13 is formed from a bottomed hole 12 having a shape that combines a cylindrical shape and a conical shape from the opening 10 of the first element 7 a toward the spiral end portion 11.
  • the shape and the size of the inner diameter of 13 are not particularly limited, and may be appropriately designed in consideration of the viscosity and pressure of the fluid flowing through the main flow path 13.
  • the groove width of the spiral groove 8 is formed so as to gradually increase from the opening 10 side toward the spiral end portion 11 side.
  • the bottom surface of the spiral groove 8 is formed to be inclined toward the spiral end 11 side.
  • the depth of the spiral groove 8 is formed so as to gradually increase from the opening 10 side toward the spiral end portion 11 side, but the groove width, bottom shape and depth of the spiral groove 8 are not particularly limited, What is necessary is just to design suitably considering the viscosity, pressure, etc. of the fluid which flows through the spiral flow path 9.
  • the communication hole 15 is linearly opened with the same diameter at a predetermined position in the circumferential direction from the bottom surface of the spiral groove 8, but the position, direction, and size of the communication hole 15 are particularly limited. Instead, it may be designed appropriately in consideration of the viscosity and pressure of the fluid flowing through the communication hole 15.
  • FIG. 4 is a longitudinal sectional view showing a fluid mixer according to the second embodiment.
  • the difference between the second embodiment and the first embodiment is mainly the orientation of the elements. That is, the spiral ends 11 of the elements 41a and 41b are arranged on the openings 23a and 23b side of the housing 1. 1 to 3 are denoted by the same reference numerals, and differences from the first embodiment will be mainly described below.
  • the main body 36 is made of PVC and is formed in a substantially cylindrical shape. Since the first main body 36a and the second main body 36b have the same shape, the first main body 36a will be mainly described below.
  • a female screw part 37 is provided on the inner periphery of one end of the first main body 36a, and a flange part 38 is provided on the outer periphery.
  • a gasket 39 is sandwiched between the end faces of the flange portion 38, and the flange portion 38 is connected by a clamp 40. If the element 41 can be taken out from the housing
  • the inner diameter of the reduced diameter portion 25 of the first joint 3a is slightly larger than the outer diameter of the outer peripheral surface of the first element 41a. Further, a tapered portion 43 protruding in the inner diameter direction is formed at the end portion of the reduced diameter portion 25 on the opening portion 23 side, and a tapered surface 431 is formed on the inner side surface of the tapered portion 43.
  • the outer peripheral surface of the first element 41a is slightly smaller than the inner diameter of the inner peripheral surface of the main body 36a.
  • the opening 10 of the element 41 is inserted so as to be disposed on the flange portion 38 side of the main body 36a.
  • the first element 41a is connected by screwing the male screw portion 20 and the female screw portion 37 of the main body 36a.
  • the end surfaces on the opening 10 side of the first element 41a and the second element 41b are flat surfaces in this embodiment, but an annular recess is provided on one end surface and the other end surface is provided.
  • An annular convex portion may be provided, and the annular concave portion may be engaged with the annular convex portion so that the flow path axes of the first element 41a and the second element 41b are made coincident. Further, if a tool hooking portion such as a hole or a notch is provided on the surface on the opening 10 side, the element 41 can be easily connected to the main body 36.
  • the remaining chemical liquid flows downstream of the spiral flow path 9, and when the chemical liquid flows through the connection portions of the branch flow paths 42 ⁇ / b> B to 42 ⁇ / b> D, the chemical liquid flows to the branch flow paths 42 ⁇ / b> B to 42 ⁇ / b> D Flows to the side.
  • the chemical solution flowing into the main channel 13 of the first element 41a flows into the main channel 13 of the second element 41b.
  • the chemical liquid that has flowed into the main flow path 13 of the second element 41b passes through the second element 41b in the reverse order, and flows out of the fluid mixer through the second opening 23b. That is, when the chemical liquid that has flowed into the main flow path 13 of the second element 41b flows through the connection portions of the branch flow paths 42E to 42H, the chemical liquid flows to the branch flow paths 42E to 42H and passes through the spiral flow path 9 to the downstream side. Flowing. In this way, the chemical liquid that has flowed into the fluid mixer from the first opening 23a and temporarily concentrated has a time difference by passing through the element 41, and flows separately.
  • the density distribution in the flowing direction can be made more uniform and mixed more uniformly.
  • FIG. 5 is a longitudinal sectional view showing a fluid mixer according to the third embodiment.
  • the difference of the third embodiment from the first embodiment is mainly the structure of the element 44. That is, the element 44 is provided with a plurality of spiral channels 47 and 48 that are displaced from each other in the circumferential direction. 1 to 3 are denoted by the same reference numerals, and differences from the first embodiment will be mainly described below.
  • the first spiral groove 45 and the second spiral groove 46 are formed on the outer peripheral surface of the first element 44a so that the depth gradually decreases from one end surface toward the other end side. .
  • the first spiral groove 45 and the second spiral groove 46 have the same shape, and the first spiral groove 45 and the second spiral groove 46 have the same cross-sectional shape.
  • the first spiral groove 45 and the second spiral groove 46 are formed so as to be displaced from each other in the circumferential direction, that is, at a constant interval in the flow path axis direction. That is, in this case, the two spiral grooves draw a double spiral shape on the outer peripheral surface of the first element 44a.
  • first spiral groove 45 and the second spiral groove 46 extend to one end surface, and are formed so as not to reach the other end surface.
  • the first spiral groove 45 and the second spiral groove 46 form a first spiral channel 47 and a second spiral channel 48 together with the inner peripheral surface of the main body 2.
  • the main body 2, 36, joint 3, elements 7, 41, 44, cap nut 4, retaining ring 6, flange type pipe joint 5 are made of polyvinyl chloride, polypropylene, polyethylene if made of resin. Any of these may be used.
  • a corrosive fluid when used as the fluid, it is preferably a fluororesin such as polytetrafluoroethylene, polyvinylidene fluoride, or tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer resin. This is suitable because it can be used for fluids, and even if corrosive gas permeates, there is no risk of corrosion of piping members.
  • a member or a part of the member forming the main body 2 or 36 or the housing 1 may be formed of a transparent or translucent material. In this case, it is preferable because the state of fluid mixing 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, etc., depending on the substance to be passed through the fluid mixer.
  • the main body 36, the joint 3, the elements 7, 41, 44, the cap nut 4, the retaining ring 6, and the flange-type pipe joint 5 are each preferably formed of the same shape and a pair of parts.
  • the number of parts can be reduced, and not only the production and management of parts can be facilitated, but also these can be easily assembled.
  • the elements 7, 41, and 44 a plurality of branch channels that communicate with the main channel 13 and the spiral channels 9, 47, and 48 that are formed substantially concentrically with the main channel 13.
  • the elements 7, 41 and 44 having 16 are listed, the shapes of the elements 7, 41 and 44 are not particularly limited as long as they have mixed directivity.
  • a turbulent grid, a rectifying grid, a filter, or the like may be attached to the gap 33 between the elements 7, 41, 44.

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

Abstract

The present invention relates to a fluid mixer that has a housing having a first opening part and a second opening part and elements positioned within the housing. In the fluid mixer, the elements, which have mixing directivity and are formed in identical shapes, are disposed in a state facing each other on the axial line of the flow path within the housing.

Description

流体混合器Fluid mixer
　本発明は、化学工場、半導体製造分野、食品分野、医療分野、バイオ分野などの各種産業における流体輸送配管に用いられる流体混合器、特に混合指向性がなく、加工性に優れた流体混合器に関する。 The present invention relates to a fluid mixer used for fluid transportation piping in various industries such as a chemical factory, a semiconductor manufacturing field, a food field, a medical field, and a bio field, and more particularly to a fluid mixer that has no mixing directivity and excellent workability. .
　従来から、流体輸送配管に装着して管内を流れる流体を均一に混合する流体混合器として、図７に示すような流体混合器がある（例えば、特許文献１参照）。図７の流体混合器は、両端部に継手部１０３を設けたエレメント１０２を筐体１０１内に配置し、キャップナット１０４を締め付けることにより固定した構成とされている。エレメント１０２の内部には入口流路１０５が設けられ、エレメント１０２の外周面には筐体１０１内周面と螺旋流路１０７を形成する螺旋溝１０８が設けられており、入口流路１０５は螺旋流路１０７に接続されている。螺旋溝１０８の底面には複数の連通孔１０９が設けられ、連通孔１０９が主流路１０６を螺旋流路１０７と連通する分岐流路１１０となる。さらに、主流路１０６は出口流路１１１に接続されている。 Conventionally, there is a fluid mixer as shown in FIG. 7 as a fluid mixer that is attached to a fluid transport pipe and uniformly mixes the fluid flowing in the pipe (for example, see Patent Document 1). The fluid mixer shown in FIG. 7 has a configuration in which elements 102 having joints 103 at both ends are arranged in a casing 101 and fixed by tightening a cap nut 104. An inlet channel 105 is provided inside the element 102, and a spiral groove 108 that forms a spiral channel 107 with the inner peripheral surface of the housing 101 is provided on the outer peripheral surface of the element 102. It is connected to the flow path 107. A plurality of communication holes 109 are provided on the bottom surface of the spiral groove 108, and the communication holes 109 serve as a branch channel 110 that communicates the main channel 106 with the spiral channel 107. Further, the main channel 106 is connected to the outlet channel 111.
特許第４６６７５３９号公報Japanese Patent No. 46667539
　しかしながら、前記従来の流体混合器はエレメント１０２の形状によって混合指向方向が決められている。混合指向方向を間違えた状態で流体混合器を配管に接続すると、使用条件によっては本来の性能を発揮できない場合があった。その場合は流体混合器を配管ラインから取り外し、正しい混合指向方向で再度配管ラインに接続する必要があり、施工時間の増加や設備の運転に影響が出ることがあった。特に、配管ラインを頻繁に分解洗浄する食品分野や医薬分野等では、流体混合器の接続ミスをなくすため、混合指向性のない流体混合器が求められている。 However, the mixing direction of the conventional fluid mixer is determined by the shape of the element 102. If the fluid mixer is connected to the pipe with the wrong mixing direction, the original performance may not be achieved depending on the usage conditions. In that case, it is necessary to remove the fluid mixer from the piping line and connect it again to the piping line in the correct mixing direction, which may increase the construction time and affect the operation of the equipment. In particular, in the food field and the pharmaceutical field where pipe lines are frequently disassembled and cleaned, a fluid mixer having no mixing directivity is required in order to eliminate connection errors in the fluid mixer.
　また、混合流体の粘度や比重などの流体特性や求められる混合の度合いなどの諸条件によっては、エレメント１０２の長さを長くする必要や形状を複雑化する必要がある。エレメント１０２が長くなり複雑化するにつれて、特に主流路１０６のような深い孔、螺旋溝１０８のような距離の長い溝及び連通孔１０９のような周方向の所定の位置に形成された孔の形成は困難となり、大型かつ高性能な加工機及び成形機が必要となるおそれがある。また、芯ずれや肌荒れなどの不具合を防ぐために加工条件及び成形条件も難易度が高くなり、これらの操作も高度なものとなるおそれがある。 Also, depending on various conditions such as the fluid characteristics such as the viscosity and specific gravity of the mixed fluid and the required degree of mixing, it is necessary to increase the length of the element 102 or to complicate the shape. As the element 102 becomes longer and more complicated, the formation of deep holes such as the main channel 106, long grooves such as the spiral groove 108, and holes formed at predetermined positions in the circumferential direction such as the communication holes 109 are formed. May be difficult and may require a large and high-performance processing machine and molding machine. Further, in order to prevent problems such as misalignment and rough skin, the processing conditions and molding conditions are also more difficult, and these operations may be advanced.
　本発明の目的は、混合指向性を有するエレメントを用いているにもかかわらず、混合指向方向がなく、より容易に形成することができる構成の流体混合器を提供することである。 An object of the present invention is to provide a fluid mixer having a configuration that can be easily formed without a mixing directivity direction even though an element having a mixing directivity is used.
　請求項１に記載の発明によれば、第１開口部及び第２開口部を有する筐体と、前記筐体の内部に位置するエレメントとを有する流体混合器において、混合指向性を有しかつ同形状に形成された前記エレメント同士が、前記筐体内部の流路軸線上で対向した状態で配置されている、流体混合器が提供される。 According to the first aspect of the present invention, a fluid mixer having a casing having a first opening and a second opening, and an element located inside the casing, has mixing directivity and A fluid mixer is provided in which the elements formed in the same shape are arranged in a state of being opposed to each other on the flow path axis inside the casing.
　すなわち、請求項１の発明では、同形状に形成されたエレメント同士が前記筐体内部の流路軸線上で対向した状態で配置されているので、請求項１の発明による流体混合器は、混合指向性を考慮することなく流体を混合することが可能となり、そのため配管施工時に混合指向方向を間違えることによる施工不良を防止することができるという効果を奏する。また、複数のエレメントを筐体内に配置することになるので、一定の筐体に１つのみのエレメントを備える場合に比べて、エレメント１つ当たりの長さを短くすることができるので、成形加工を容易にすることができる。 That is, in the first aspect of the invention, the elements formed in the same shape are arranged in a state of being opposed to each other on the flow path axis inside the casing. It becomes possible to mix fluids without considering directivity, and therefore, it is possible to prevent a construction failure due to a wrong mixing directivity direction during pipe construction. In addition, since a plurality of elements are arranged in the casing, the length per element can be shortened compared to the case where only one element is provided in a fixed casing. Can be made easier.
　本発明において、「混合指向方向」とは、流体混合器の一方から流体を流したときと他方から流体を流したときとで、流体を流す方向によって混合性能に差が生じた場合に、より優れた混合性能を得るために流体混合器に流体を流す方向のことをいい、また、流体を流す方向によって混合性能に差が生じる性質のことを「混合指向性」という。例えば、流体混合器の混合指向方向がエレメントによって決定されるときは、そのエレメントは「混合指向性を有するエレメント」と呼ぶことができる。 In the present invention, the “mixing direction” means that when the fluid flows from one of the fluid mixers and when the fluid flows from the other, the mixing performance differs depending on the direction of flowing the fluid. In order to obtain excellent mixing performance, it refers to the direction in which the fluid flows through the fluid mixer, and the property in which the mixing performance varies depending on the direction in which the fluid flows is referred to as “mixing directivity”. For example, when the mixing direction of a fluid mixer is determined by an element, the element can be referred to as an “element with mixing direction”.
　本発明において、「同形状」とは２つの物体の形状が同じかほぼ同じであることをいう。例えば、エレメントを各々の端面で係合させるために、第一エレメントには凹部を、第二エレメントには凸部を設けた場合でも、流体混合器の混合性能がほぼ同じであれば第一エレメント及び第二エレメントの形状を「同形状」と呼ぶことができる。また、エレメントの構成中に捻り形状や螺旋形状を含む場合は、流体混合器の一方から流体を流したときと他方から流体を流したときとで混合性能に差が生じなければ、捻り形状や螺旋形状の旋回方向を互いに異なる旋回方向にした場合でも、第一エレメント及び第二エレメントの形状を「同形状」と呼ぶことができる。 In the present invention, “same shape” means that two objects have the same or almost the same shape. For example, even if the first element is provided with a concave portion and the second element is provided with a convex portion in order to engage the element at each end face, the first element is provided if the mixing performance of the fluid mixer is substantially the same. The shape of the second element can be referred to as “the same shape”. In addition, if the element configuration includes a twisted shape or a spiral shape, if there is no difference in mixing performance between when the fluid is flowed from one of the fluid mixers and when the fluid is flowed from the other, the twisted shape or Even when the spiral turning directions are different from each other, the shapes of the first element and the second element can be referred to as “the same shape”.
　請求項２に記載の発明によれば、前記筐体内に配置された一対の前記エレメントが互いに離間して配置されている、流体混合器が提供される。 According to the second aspect of the present invention, there is provided a fluid mixer in which the pair of elements arranged in the casing are arranged apart from each other.
　すなわち、請求項２の発明では、一対のエレメントが互いに離間して配置されていることにより、流体混合器を組み立てるときに各部品の寸法誤差や組立時の組立誤差などから生じるエレメントの組立位置の誤差を吸収することができ、組み立てを容易にすることができる。 That is, in the invention of claim 2, since the pair of elements are arranged apart from each other, when the fluid mixer is assembled, the assembly position of the element caused by the dimensional error of each part, the assembly error at the time of assembly, etc. Errors can be absorbed and assembly can be facilitated.
　請求項３に記載の発明によれば、前記エレメントには、一端部と他端部との間の少なくとも一部における前記エレメントの外周面に螺旋溝が形成され、前記他端部には開口部が形成され、主流路が前記螺旋溝の螺旋の中心軸線と略同軸に形成され、複数の連通孔が各々、前記螺旋溝を前記主流路と連通するように形成されている、流体混合器が提供される。 According to the invention described in claim 3, the element is formed with a spiral groove on the outer peripheral surface of the element in at least a part between the one end and the other end, and an opening is formed in the other end. A fluid mixer, wherein the main channel is formed substantially coaxially with the central axis of the spiral of the spiral groove, and a plurality of communication holes are respectively formed so as to communicate the spiral groove with the main channel. Provided.
　すなわち、請求項３の発明では、本請求項により規定されたエレメントを形成したことによって、混合性能の優れた流体混合器を実現することができる。 That is, in the invention of claim 3, a fluid mixer having excellent mixing performance can be realized by forming the element defined by this claim.
　請求項４に記載の発明によれば、同形状である複数の前記螺旋溝が、前記エレメントの外周面に設けられており、各々の螺旋溝が互いに流路軸線方向に一定間隔を空けて形成されている、流体混合器が提供される。 According to a fourth aspect of the present invention, the plurality of spiral grooves having the same shape are provided on the outer peripheral surface of the element, and the spiral grooves are formed at regular intervals in the flow path axis direction. A fluid mixer is provided.
　すなわち、請求項４の発明では、本請求項により規定された流体混合器を形成したことによって、混合性能の優れた流体混合器を実現することができる。 That is, in the invention of claim 4, a fluid mixer having excellent mixing performance can be realized by forming the fluid mixer defined by this claim.
　各請求項に記載の発明によれば以下の共通な効果が得られる。
　（１）混合指向性を有するエレメントを用いているにもかかわらず、流体混合器としては混合指向性がないため、配管施工時に混合指向方向を間違えることによる施工不良を防止することができる。
　（２）エレメントの長さを短くすることができるので、成形加工を容易にすることができる。 According to the invention described in each claim, the following common effects can be obtained.
(1) Despite the use of an element having mixing directivity, the fluid mixer does not have mixing directivity, so that it is possible to prevent construction failure due to a mistake in the mixing directivity direction during pipe construction.
(2) Since the length of the element can be shortened, the molding process can be facilitated.
　以下、添付図面と本発明の好適な実施形態の記載から、本発明を一層十分に理解できるであろう。 Hereinafter, the present invention will be more fully understood from the accompanying drawings and the description of preferred embodiments of the present invention.
本発明の第一の実施形態に係る流体混合器を示す縦断面図である。It is a longitudinal cross-sectional view which shows the fluid mixer which concerns on 1st embodiment of this invention. 本発明の第一の実施形態に係る流体混合器の部分縦断面図である。It is a fragmentary longitudinal cross-sectional view of the fluid mixer which concerns on 1st embodiment of this invention. 本発明の第一の実施形態に係る流体混合器を示す縦断面図であって、特にその作用を説明するための図である。It is a longitudinal cross-sectional view which shows the fluid mixer which concerns on 1st embodiment of this invention, Comprising: It is a figure for demonstrating the effect | action especially. 本発明の第二の実施形態に係る流体混合器を示す縦断面図である。It is a longitudinal cross-sectional view which shows the fluid mixer which concerns on 2nd embodiment of this invention. 本発明の第三の実施形態に係る流体混合器を示す縦断面図である。It is a longitudinal cross-sectional view which shows the fluid mixer which concerns on 3rd embodiment of this invention. 本発明の第三の実施形態におけるエレメントを示す斜視図である。It is a perspective view which shows the element in 3rd embodiment of this invention. 従来の流体混合器を示す縦断面図である。It is a longitudinal cross-sectional view which shows the conventional fluid mixer.
　以下、本発明の実施形態について図面を参照して説明するが、本発明が図示した実施形態に限定されないことはいうまでもない。 Hereinafter, although embodiments of the present invention will be described with reference to the drawings, it goes without saying that the present invention is not limited to the illustrated embodiments.
　－第一の実施形態－
　以下、図１～３を参照して、本発明の第一の実施形態である流体混合器について説明する。図１は、第一の実施形態に係る流体混合器の概略構成を示す縦断面図である。第一の実施形態では、両端に開口部を有する筐体１内に、混合指向性を有し同形状に形成されたエレメント７が筐体１内部の流路軸線上で対向した状態で配置されることにより、流体混合器が形成されている。 -First embodiment-
Hereinafter, a fluid mixer according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a longitudinal sectional view showing a schematic configuration of a fluid mixer according to a first embodiment. In the first embodiment, elements 7 having mixed directivity and formed in the same shape are arranged in a casing 1 having openings at both ends in a state of facing each other on the flow path axis in the casing 1. Thus, a fluid mixer is formed.
　筐体１は、第１開口２３ａ、第２開口２３ｂを有し、本体２と継手３とキャップナット４とフランジ式管継手５と止め輪６から構成されている。本体２は、ＰＶＣ（ポリ塩化ビニル）製であり、略円筒形に形成されている。本体２の内径はエレメント７の外周面の外径よりもわずかに大径に形成されている。エレメント７が筐体１に挿入され、本体２の内周面とエレメント７の螺旋溝８とから螺旋流路９が形成される。本体２の長さが長くなるときは、成形加工を容易にすると共に内周面を洗浄しやすくするために、本体２を分割できるように形成してもよい。 The housing 1 has a first opening 23a and a second opening 23b, and includes a main body 2, a joint 3, a cap nut 4, a flange-type pipe joint 5, and a retaining ring 6. The main body 2 is made of PVC (polyvinyl chloride) and has a substantially cylindrical shape. The inner diameter of the main body 2 is slightly larger than the outer diameter of the outer peripheral surface of the element 7. The element 7 is inserted into the housing 1, and a spiral flow path 9 is formed from the inner peripheral surface of the main body 2 and the spiral groove 8 of the element 7. When the length of the main body 2 is increased, the main body 2 may be formed so as to be divided in order to facilitate the molding process and to facilitate cleaning of the inner peripheral surface.
　本実施形態ではエレメント７はＰＴＦＥ（ポリテトラフルオロエチレン）製であり、略円柱状に形成されている。第一エレメント７ａ及び第二エレメント７ｂは同形状なので、以下では主に第一エレメント７ａで代表して説明する。第一エレメント７ａの外周面には一端面から他端部側に向かって深さが漸次浅くなる螺旋溝８が形成されている。螺旋溝８は一端面まで溝が延設されており、他端面には前記溝が到達しないように形成されている。第一エレメント７ａの他端面には開口１０が形成され、さらに開口１０から螺旋溝８が延設されている端面の周辺部（すなわち螺旋端部１１）に向かって円柱形状と円錐形状を組み合わせたような形状の有底孔１２が形成され、本実施形態では有底孔１２が主流路１３となる。このとき、第一エレメント７ａは、螺旋溝８の底面と有底孔１２の内周面との間の厚さがほぼ等しくなるように形成され、第一エレメント７ａの少なくとも一部が開口端部１４から螺旋端部１１に向かって縮径した円錐形状となっている。螺旋溝８の溝幅は、開口１０が設けられている開口端部１４から螺旋端部１１の方向にかけて、漸次広くなるように形成されている。螺旋溝８の底面には周方向の所定の位置で、主流路１３と連通する連通孔１５が径方向に略直線状に開口されている。これらの連通孔１５により主流路１３から分岐し螺旋流路９へと接続する分岐流路１６が形成されている。なお、本実施形では、第一エレメント７ａと第二エレメント７ｂの螺旋溝８の旋回方向は同じであるが、第１開口２３ａ側から流体を流しときの混合性能と第２開口２３ｂ側から流体を流したときの混合性能に差が生じなければ、螺旋溝８の旋回方向は互いに異なる旋回方向でもよい。 In this embodiment, the element 7 is made of PTFE (polytetrafluoroethylene) and is formed in a substantially cylindrical shape. Since the first element 7a and the second element 7b have the same shape, the following description will be made mainly with the first element 7a as a representative. A spiral groove 8 is formed on the outer peripheral surface of the first element 7a so that the depth gradually decreases from one end surface toward the other end side. The spiral groove 8 has a groove extending to one end surface, and is formed so that the groove does not reach the other end surface. An opening 10 is formed on the other end surface of the first element 7a, and a cylindrical shape and a conical shape are combined toward the periphery of the end surface where the spiral groove 8 extends from the opening 10 (ie, the spiral end portion 11). The bottomed hole 12 having such a shape is formed, and the bottomed hole 12 serves as the main flow path 13 in the present embodiment. At this time, the first element 7a is formed so that the thickness between the bottom surface of the spiral groove 8 and the inner peripheral surface of the bottomed hole 12 is substantially equal, and at least a part of the first element 7a is an open end portion. The conical shape is reduced in diameter from 14 toward the spiral end 11. The groove width of the spiral groove 8 is formed so as to gradually increase from the opening end portion 14 provided with the opening 10 to the spiral end portion 11. On the bottom surface of the spiral groove 8, a communication hole 15 communicating with the main flow path 13 is opened substantially linearly in the radial direction at a predetermined position in the circumferential direction. A branch channel 16 that branches from the main channel 13 and connects to the spiral channel 9 is formed by these communication holes 15. In this embodiment, the swirling directions of the spiral grooves 8 of the first element 7a and the second element 7b are the same, but the mixing performance when the fluid is flowed from the first opening 23a side and the fluid from the second opening 23b side. As long as there is no difference in mixing performance when flowing, the turning directions of the spiral grooves 8 may be different from each other.
　以下、図２を参照してさらに第一の実施形態に係る流体混合器について説明する。 Hereinafter, the fluid mixer according to the first embodiment will be further described with reference to FIG.
　第一エレメント７ａの開口端部１４には外径方向に突出した係合部１７が設けられている。係合部１７の外径は、第一キャップナット４ａの内径よりもわずかに小径に形成され、第一継手３ａの内径よりも大径に形成されている。係合部１７は第一継手３ａの端面と係合することによって、第一エレメント７ａの組立位置を決定する。また、係合部１７を設けることによって、流体混合器を組み立てるときに、第一エレメント７ａを第一継手３ａに一方向からしか挿入することができなくなるため、流体混合器を組み立てるときに第一エレメント７ａを間違った方向に装着することを防ぐことができる。 An engaging portion 17 protruding in the outer diameter direction is provided at the opening end portion 14 of the first element 7a. The outer diameter of the engaging portion 17 is slightly smaller than the inner diameter of the first cap nut 4a, and is larger than the inner diameter of the first joint 3a. The engaging portion 17 determines the assembly position of the first element 7a by engaging with the end face of the first joint 3a. Further, when the fluid mixer is assembled, the first element 7a can be inserted into the first joint 3a from only one direction when the fluid mixer is assembled. It is possible to prevent the element 7a from being attached in the wrong direction.
　第一エレメント７ａの開口１０の外周縁には第一エレメント７ａと第一フランジ式管継手５ａとを水密状態に維持する止水部材１８が装着される環状溝１９が設けられている。また、係合部１７の螺旋端部１１側の部分には、第一継手３ａの雌ネジ部２７と螺合される雄ネジ部２０が設けられている。第一エレメント７ａと第一継手３ａを一体的に接続可能にすることによって、流体混合器を分解するときに、第一エレメント７ａが第一継手３ａから不意に脱落することを防止することができる。第一エレメント７ａ及び第一継手３ａの接続方法は特に限定されないが、好適なものとして、ネジ接続やバイオネット構造による接続が挙げられる。雄ネジ部２０の螺旋端部１１側の部分には第一エレメント７ａと第一継手３ａとを水密状態に維持する止水部材２１が装着される環状溝２２が設けられている。また、係合部１７に面取りなどを施して工具掛かり部を設けると、第一エレメント７ａを第一継手２４ａに接続しやすくする。 An annular groove 19 is provided on the outer peripheral edge of the opening 10 of the first element 7a in which a water stop member 18 for maintaining the first element 7a and the first flange-type pipe joint 5a in a watertight state is mounted. In addition, a male screw portion 20 that is screwed into the female screw portion 27 of the first joint 3a is provided at a portion of the engaging portion 17 on the spiral end portion 11 side. By allowing the first element 7a and the first joint 3a to be integrally connected, it is possible to prevent the first element 7a from being accidentally dropped from the first joint 3a when the fluid mixer is disassembled. . Although the connection method of the 1st element 7a and the 1st coupling 3a is not specifically limited, As a suitable thing, the connection by screw connection or a bayonet structure is mentioned. An annular groove 22 in which a water stop member 21 for maintaining the first element 7a and the first joint 3a in a watertight state is mounted is provided in a portion of the male screw portion 20 on the spiral end portion 11 side. Further, if the engagement portion 17 is chamfered to provide a tool hook portion, the first element 7a can be easily connected to the first joint 24a.
　例えば、継手３はＰＶＣ製であり、略円筒形に形成されている。第一継手３ａと第二継手３ｂは同形状なので、以下では主に第一継手３ａで代表して説明する。第一継手３ａは、内径が本体２の外径よりもわずかに大径に形成される胴部２４と、内径が第一エレメント７ａの外周面の外径よりもわずかに大径に形成されている縮径部２５から構成されている。第一継手３ａの縮径部２５側の端部外周面には第一キャップナット４ａが螺合される雄ネジ部２６が形成され、縮径部２５側の端部内周面には第一エレメント７ａが螺合される雌ネジ部２７が形成されている。胴部２４の内周面と本体２の外周面は接着することによって一体的に接続され、縮径部２５と第一エレメント７ａは止水部材２１によって水密状態に維持されている。部品点数を減らすために、本体２と継手３を一体に形成してもよい。 For example, the joint 3 is made of PVC and has a substantially cylindrical shape. Since the first joint 3a and the second joint 3b have the same shape, the following description will be made mainly with the first joint 3a as a representative. The first joint 3a is formed so that the inner diameter is slightly larger than the outer diameter of the main body 2 and the inner diameter is slightly larger than the outer diameter of the outer peripheral surface of the first element 7a. It is comprised from the reduced diameter part 25 which is. A male threaded portion 26 into which the first cap nut 4a is screwed is formed on the outer peripheral surface of the first joint 3a on the reduced diameter portion 25 side, and the first element is formed on the inner peripheral surface of the end portion on the reduced diameter portion 25 side. A female screw portion 27 to which 7a is screwed is formed. The inner peripheral surface of the trunk portion 24 and the outer peripheral surface of the main body 2 are integrally connected by bonding, and the reduced diameter portion 25 and the first element 7 a are maintained in a watertight state by the water stop member 21. In order to reduce the number of parts, the main body 2 and the joint 3 may be formed integrally.
　本実施形態では、キャップナット４はＰＶＣ製であり、略円筒形に形成されている。第一キャップナット４ａ及び第二キャップナット４ｂは同形状なので、以下では主に第一キャップナット４ａで代表して説明する。一方の端部内周には、第一継手３ａの縮径部２５外周に設けられた雄ネジ部２６に螺合される雌ネジ部２８が設けられている。他端部には、内周方向へ突出する内鍔部２９が設けられている。第一キャップナット４ａが、内鍔部２９が第一止め輪６ａの鍔部３４端面に接した状態で、第一継手３ａに螺合されることで、第一フランジ式管継手５ａを固定する。 In the present embodiment, the cap nut 4 is made of PVC and is formed in a substantially cylindrical shape. Since the first cap nut 4a and the second cap nut 4b have the same shape, the following description will be made mainly with the first cap nut 4a as a representative. On the inner periphery of one end portion, there is provided a female screw portion 28 that is screwed into a male screw portion 26 provided on the outer periphery of the reduced diameter portion 25 of the first joint 3a. The other end portion is provided with an inner flange portion 29 protruding in the inner circumferential direction. The first cap nut 4a is screwed into the first joint 3a in a state where the inner flange portion 29 is in contact with the end surface of the flange portion 34 of the first retaining ring 6a, thereby fixing the first flange-type pipe joint 5a. .
　一例として、フランジ式管継手５はＰＶＣ製である。第一フランジ式管継手５ａと第二フランジ式管継手５ｂは同一形状なので、以下では主に第一フランジ式管継手５ａで代表して説明する。第一フランジ式管継手５ａは短管部３０とフランジ部３１とから構成されている。短管部３０の外径は、第一キャップナット４ａの内鍔部２９の内径よりも小径に形成され、第一エレメント７ａの有底孔１２の最大径と同径またはほぼ同径に形成されている。短管部３０の外周面には第一止め輪６ａを嵌合する環状溝部３２が設けられている。 As an example, the flange type pipe joint 5 is made of PVC. Since the first flange-type pipe joint 5a and the second flange-type pipe joint 5b have the same shape, the first flange-type pipe joint 5a will be mainly described below. The first flange-type pipe joint 5 a includes a short pipe part 30 and a flange part 31. The outer diameter of the short pipe portion 30 is formed smaller than the inner diameter of the inner flange portion 29 of the first cap nut 4a, and is formed to have the same diameter as or substantially the same diameter as the maximum diameter of the bottomed hole 12 of the first element 7a. ing. An annular groove portion 32 for fitting the first retaining ring 6 a is provided on the outer peripheral surface of the short tube portion 30.
　本実施形態では、止め輪６はＰＶＤＦ（ポリビニリデンフルオロライド）製であり、略円筒形に形成されている。第一止め輪６ａ及び第二止め輪６ｂは同形状なので、以下では主に第一止め輪６ａで代表して説明する。一端部の内周側には、内径方向に突出すると共に第一フランジ式管継手５ａの環状溝部３２に嵌合される嵌合部３３が形成されている。他端部の外周面には、嵌合部３３とは段違いに形成された鍔部３４が形成されている。鍔部３４の外径は第一キャップナット４ａの内鍔部２９の内径よりも大径に形成されている。第一止め輪６ａには円周を断絶する切欠部が設けられ、装着する際はＣ形止め輪のように拡径してから第一フランジ式管継手５ａの環状溝部３２に装着される。 In this embodiment, the retaining ring 6 is made of PVDF (polyvinylidene fluoride) and has a substantially cylindrical shape. Since the first retaining ring 6a and the second retaining ring 6b have the same shape, the first retaining ring 6a will be mainly described below. A fitting portion 33 that protrudes in the inner diameter direction and fits in the annular groove portion 32 of the first flange-type pipe joint 5a is formed on the inner peripheral side of the one end portion. On the outer peripheral surface of the other end portion, a flange portion 34 formed in a step difference from the fitting portion 33 is formed. The outer diameter of the flange 34 is formed larger than the inner diameter of the inner flange 29 of the first cap nut 4a. The first retaining ring 6a is provided with a notch that cuts off the circumference. When the first retaining ring 6a is attached, the first retaining ring 6a is attached to the annular groove 32 of the first flange-type pipe joint 5a after expanding its diameter like a C-shaped retaining ring.
　次に、図３を用いて本発明の第一の実施形態に係る流体混合器の作用について説明する。なお、図３は図１と同じ図であるが、第一の実施形態に係る流体混合器の作用をより容易に理解するために用意された図面である。 Next, the operation of the fluid mixer according to the first embodiment of the present invention will be described with reference to FIG. 3 is the same view as FIG. 1, but is a drawing prepared for easier understanding of the operation of the fluid mixer according to the first embodiment.
　流体混合器の上流側（図面では左側）で水及び薬液を混合させ、一時的に薬液の濃度が濃くなった状態で薬液を流入させたときに、配管内で部分的に濃度が濃い状態で流れる薬液は、第一開口部２３ａから主流路１３に流入する。部分的に濃度が濃い状態で流れる薬液が主流路１３と分岐流路１６との接続部を流れると、薬液の一部が分岐流路１６Ａを流れて螺旋流路９を通って下流側（図面では右側）へと流れる。残りの薬液は主流路１３の下流側へ流れ、薬液が分岐流路１６Ｂの接続部を流れると、薬液の一部が分岐流路１６Ｂを流れて螺旋流路９を通って下流側へと流れる。さらに、残りの薬液は主流路１３の下流側へ流れ、薬液が分岐流路１６Ｃ、１６Ｄの接続部を流れると、分岐流路１６Ａ、１６Ｂに流入した薬液と同様に、分岐流路１６Ｃ、１６Ｄを流れて、螺旋流路９を通って下流側へと流れる。 When water and chemicals are mixed on the upstream side (left side in the drawing) of the fluid mixer and the chemicals are flown in a state where the concentration of the chemicals is temporarily high, the concentration is partially high in the piping. The flowing chemical liquid flows into the main flow path 13 from the first opening 23a. When the chemical liquid that flows in a partially concentrated state flows through the connection portion between the main flow path 13 and the branch flow path 16, a part of the chemical liquid flows through the branch flow path 16A and passes through the spiral flow path 9 to the downstream side (drawing). Then right). The remaining chemical liquid flows to the downstream side of the main flow path 13, and when the chemical liquid flows through the connection portion of the branch flow path 16B, a part of the chemical liquid flows through the branch flow path 16B and flows downstream through the spiral flow path 9. . Further, when the remaining chemical liquid flows downstream of the main flow path 13 and the chemical liquid flows through the connecting portions of the branch flow paths 16C and 16D, the branch flow paths 16C and 16D are the same as the chemical liquid flowing into the branch flow paths 16A and 16B. And flows downstream through the spiral flow path 9.
　このとき、分岐流路１６Ｄを流れる薬液は、第一開口部２３ａから第一エレメント７ａと第二エレメント７ｂとの隙間３５までの流路の長さが最も短くなっている。そのことから、分岐流路１６Ｄを流れる薬液は分岐流路１６Ａ～Ｃを流れる薬液よりも短時間で第一エレメント７ａから流出し隙間３５に流入する。その後、分岐流路１６Ａ，１６Ｂ，１６Ｃの順で分岐流路を通過した薬液は、分岐流路１６Ｃ，１６Ｂ，１６Ａの順で時間差を生じさせながら、第一エレメント７ａから流出し隙間３５に流入する。つまり、配管内で部分的に濃度が濃くなって流れる薬液は第一エレメント７ａによって時間差を伴って、おおよそ４回に分けられて流れることとなり、濃度の濃くなっていない薬液と各々混ざり合うことで流体が流れる方向の濃度分布をムラなく均一化して混合することができる。 At this time, the chemical liquid flowing through the branch flow path 16D has the shortest flow path length from the first opening 23a to the gap 35 between the first element 7a and the second element 7b. Therefore, the chemical liquid flowing through the branch flow path 16D flows out from the first element 7a and flows into the gap 35 in a shorter time than the chemical liquid flowing through the branch flow paths 16A to 16C. Thereafter, the chemical solution that has passed through the branch flow paths in the order of the branch flow paths 16A, 16B, and 16C flows out of the first element 7a and flows into the gap 35 while causing a time difference in the order of the branch flow paths 16C, 16B, and 16A. To do. That is, the chemical solution that is partially concentrated in the pipe flows in approximately four times with a time lag by the first element 7a, and is mixed with the chemical solution that is not concentrated in concentration. The concentration distribution in the direction in which the fluid flows can be evenly and uniformly mixed.
　なお、本実施形態では第一エレメント７ａと第二エレメント７ｂとの間に隙間３５を設けているが、隙間３５は設けても設けなくてもよい。隙間３５を設けることによって、流体混合器を組み立てるときに各部品の寸法誤差や組立時の組立誤差などから生じるエレメント７の組立位置の誤差を吸収することができ、組み立てを容易にすることができる。また、隙間３５を設けないときはエレメント７の面同士の間をできうる限り小さくすることができる。このことは、特に、装置の内部のような狭隘な空間に流体混合器を設置するような場合に好適である。 In this embodiment, the gap 35 is provided between the first element 7a and the second element 7b. However, the gap 35 may or may not be provided. By providing the gap 35, it is possible to absorb an error in the assembly position of the element 7 caused by a dimensional error of each part or an assembly error during assembly when the fluid mixer is assembled, and the assembly can be facilitated. . Further, when the gap 35 is not provided, the space between the surfaces of the element 7 can be made as small as possible. This is particularly suitable when the fluid mixer is installed in a narrow space such as the inside of the apparatus.
　隙間３５に流入した薬液は第二エレメント７ｂの螺旋流路９に流入する。螺旋流路９に流入した薬液は、第一エレメント７ａとは逆の順序で第二エレメント７ｂを通過し第２開口部２３ｂから流体混合器外へ流出する。すなわち、第二エレメント７ｂの螺旋流路９に流入した薬液が分岐流路１６Ｅの接続部を流れると、薬液の一部が分岐流路１６Ｅを流れて主流路１３を通って下流側へと流れる。残りの薬液は螺旋流路９の下流側へ流れ、分岐流路１６Ｆの接続部を流れると、薬液の一部が分岐流路１６Ｆを流れて主流路１３を通って下流側へと流れる。さらに、残りの薬液は螺旋流路９の下流側へ流れ、分岐流路１６Ｇ、１６Ｈの接続部を流れると、分岐流路１６Ｅ、１６Ｆに流入した薬液と同様に、分岐流路１６Ｇ、１６Ｈを流れて主流路１３を通って下流側へと流れる。したがって、第二エレメント７ｂに流入した薬液は、第一エレメント７ａを通過したときと同様に、第二エレメント７ｂによって時間差を伴って、おおよそ４回に分けて流れることとなり、薬液が流れる方向の濃度分布をよりムラなく均一化して混合することができる。 * The chemical | medical solution which flowed into the clearance gap 35 flows into the spiral flow path 9 of the 2nd element 7b. The chemical liquid that has flowed into the spiral flow path 9 passes through the second element 7b in the reverse order to the first element 7a, and flows out of the fluid mixer through the second opening 23b. That is, when the chemical liquid that has flowed into the spiral flow path 9 of the second element 7b flows through the connecting portion of the branch flow path 16E, a part of the chemical liquid flows through the branch flow path 16E and flows downstream through the main flow path 13. . The remaining chemical liquid flows to the downstream side of the spiral flow path 9, and when flowing through the connecting portion of the branch flow path 16 </ b> F, a part of the chemical liquid flows through the branch flow path 16 </ b> F to the downstream side through the main flow path 13. Further, the remaining chemical liquid flows to the downstream side of the spiral flow path 9 and flows through the connecting portions of the branch flow paths 16G and 16H. As with the chemical liquid flowing into the branch flow paths 16E and 16F, And flows downstream through the main channel 13. Accordingly, the chemical solution that has flowed into the second element 7b flows in approximately four times with a time difference by the second element 7b, as in the case of passing through the first element 7a. The distribution can be made uniform and more uniform.
　本発明の流体混合器では、エレメント７自体は混合指向性を有するが、エレメント７を筐体１内部の流路軸線上で対向した状態で筐体内に配置している。このように、エレメント７を配置することによって、第一開口部２３ａ、第二開口部２３ｂのどちらから流体を流しても同じように混合することができる。したがって、流体混合器を配管に接続するときに、混合指向方向に注意して施工する必要がなく、混合指向方向を間違えることによる施工不良を防止することができる。このことは、特に、日常的に配管ラインを分解洗浄する食品分野や医薬分野等においては効果が大きい。 In the fluid mixer of the present invention, the element 7 itself has mixing directivity, but the element 7 is arranged in the casing in a state of being opposed on the flow path axis in the casing 1. In this manner, by disposing the element 7, the fluid can be mixed in the same way regardless of whether the fluid flows from either the first opening 23 a or the second opening 23 b. Therefore, when connecting a fluid mixer to piping, it is not necessary to pay attention to the mixing directivity direction, and it is possible to prevent a construction failure due to a mistake in the mixing directivity direction. This is particularly effective in the food field and the pharmaceutical field where the piping line is disassembled and cleaned on a daily basis.
　本発明の流体混合器では、同形状の一対のエレメント７を筐体内に配置しているので、筐体１の長さに適合するエレメントを一体形成する場合に比べて、エレメント７の長さを短くすることができ、成形加工を容易にすることができる。一般的に、簡単な構造のエレメントであっても、エレメントの長さが長くなるにつれて成形加工が難しくなる。また、エレメントに深い孔や複雑な溝が設けられていると、特に成形加工が難しくなり、芯ずれや肌荒れといった不具合が生じ易くなる。このような不具合を防ぐためには、専用工具並びに大型かつ高性能な成形機及び加工機が必要となるが、本発明のように、同形状の一対のエレメント７を筐体１内に配置すると、エレメント７の長さを短くすることができ、成形加工が容易になることから、設備を小型化かつ簡略化することができる。特に、混合しにくい流体を高度に混合するような場合は、エレメント７の形状が複雑かつ長尺になり易く、そのような場合は効果が大きい。 In the fluid mixer according to the present invention, the pair of elements 7 having the same shape is arranged in the casing, so that the length of the element 7 is made longer than that in the case where the elements that match the length of the casing 1 are integrally formed. It can be shortened and the molding process can be facilitated. In general, even an element with a simple structure becomes difficult to form as the length of the element increases. In addition, if the element is provided with deep holes or complicated grooves, the molding process is particularly difficult, and problems such as misalignment and rough skin are likely to occur. In order to prevent such inconvenience, a dedicated tool and a large and high-performance molding machine and processing machine are required, but as in the present invention, when a pair of elements 7 having the same shape are arranged in the housing 1, Since the length of the element 7 can be shortened and the molding process is facilitated, the equipment can be reduced in size and simplified. In particular, when a fluid that is difficult to mix is highly mixed, the shape of the element 7 tends to be complicated and long, and in such a case, the effect is great.
　本発明の流体混合器では、エレメント７の長さを短くすることができるので、流体混合器を分解洗浄するときに洗浄することが容易になる。特に、このことは、日常的に配管部材を分解洗浄する食品分野や医薬分野等においては効果が大きい。 In the fluid mixer of the present invention, since the length of the element 7 can be shortened, it becomes easy to clean the fluid mixer when disassembling and cleaning it. In particular, this has a great effect in the food field, the pharmaceutical field, and the like where the piping member is disassembled and cleaned on a daily basis.
　本実施形態において、主流路１３は、第一エレメント７ａの開口１０から螺旋端部１１に向かって円柱形状と円錐形状を組み合わせたような形状の有底孔１２から形成されているが、主流路１３の形状及び内径の大きさは特に限定されず、主流路１３を流れる流体の粘度及び圧力などを考慮して適宜設計すればよい。 In the present embodiment, the main flow path 13 is formed from a bottomed hole 12 having a shape that combines a cylindrical shape and a conical shape from the opening 10 of the first element 7 a toward the spiral end portion 11. The shape and the size of the inner diameter of 13 are not particularly limited, and may be appropriately designed in consideration of the viscosity and pressure of the fluid flowing through the main flow path 13.
　本実施形態において、螺旋溝８の溝幅は、開口１０側から螺旋端部１１側に向かって漸次広くなるように形成される。螺旋溝８の底面は螺旋端部１１側に傾いて形成される。螺旋溝８の深さは、開口１０側から螺旋端部１１側に近接するにつれて漸次深くなるように形成されているが、螺旋溝８の溝幅、底面形状及び深さは特に限定されず、螺旋流路９を流れる流体の粘度及び圧力などを考慮して適宜設計すればよい。 In this embodiment, the groove width of the spiral groove 8 is formed so as to gradually increase from the opening 10 side toward the spiral end portion 11 side. The bottom surface of the spiral groove 8 is formed to be inclined toward the spiral end 11 side. The depth of the spiral groove 8 is formed so as to gradually increase from the opening 10 side toward the spiral end portion 11 side, but the groove width, bottom shape and depth of the spiral groove 8 are not particularly limited, What is necessary is just to design suitably considering the viscosity, pressure, etc. of the fluid which flows through the spiral flow path 9.
　本実施形態において、連通孔１５は、螺旋溝８の底面から周方向の所定の位置で直線状に同一径で開口されているが、連通孔１５の設けられる位置、方向及び大きさは特に限定されず、連通孔１５を流れる流体の粘度及び圧力などを考慮して適宜設計すればよい。 In the present embodiment, the communication hole 15 is linearly opened with the same diameter at a predetermined position in the circumferential direction from the bottom surface of the spiral groove 8, but the position, direction, and size of the communication hole 15 are particularly limited. Instead, it may be designed appropriately in consideration of the viscosity and pressure of the fluid flowing through the communication hole 15.
　―第二の実施形態―
　次に、図４を参照して、本発明の第二の実施形態における流体混合器について説明する。図４は第二の実施形態に係る流体混合器を示す縦断面図である。第二の実施形態が第一の実施形態と異なる点は、主にエレメントの向きである。すなわち、筐体１の開口部２３ａ、２３ｂ側にエレメント４１ａ、４１ｂの螺旋端部１１が配置されている。なお、図１～３と同一の箇所には同一の符号を付し、以下では第一の実施形態との相違点を主に説明する。 -Second embodiment-
Next, with reference to FIG. 4, the fluid mixer in 2nd embodiment of this invention is demonstrated. FIG. 4 is a longitudinal sectional view showing a fluid mixer according to the second embodiment. The difference between the second embodiment and the first embodiment is mainly the orientation of the elements. That is, the spiral ends 11 of the elements 41a and 41b are arranged on the openings 23a and 23b side of the housing 1. 1 to 3 are denoted by the same reference numerals, and differences from the first embodiment will be mainly described below.
　本実施形態において、本体３６はＰＶＣ製であり、略円筒形に形成されている。第一本体３６ａ及び第二本体３６ｂは同形状なので、以下では主に第一本体３６ａで代表して説明する。第一本体３６ａの一端部内周には雌ネジ部３７が設けられ、外周にはフランジ部３８が設けられている。フランジ部３８の端面同士の間にはガスケット３９が挟持され、フランジ部３８はクランプ４０により連結されている。本体３６同士の連結方法は、筐体１からエレメント４１を取り出すことが出来れば、螺着、接着、ボルト締め、バイオネット構造などを用いることができ、特に限定されない。 In the present embodiment, the main body 36 is made of PVC and is formed in a substantially cylindrical shape. Since the first main body 36a and the second main body 36b have the same shape, the first main body 36a will be mainly described below. A female screw part 37 is provided on the inner periphery of one end of the first main body 36a, and a flange part 38 is provided on the outer periphery. A gasket 39 is sandwiched between the end faces of the flange portion 38, and the flange portion 38 is connected by a clamp 40. If the element 41 can be taken out from the housing | casing 1, the connection method of the main bodies 36 can use screwing, adhesion | attachment, bolting, a bayonet structure, etc., and is not specifically limited.
　第一継手３ａの縮径部２５の内径は第一エレメント４１ａの外周面の外径よりもわずかに大径に形成されている。また、縮径部２５の開口部２３側の端部には、内径方向に突出するテーパー部４３が形成され、テーパー部４３の内側面にはテーパー面４３１が形成されている。 The inner diameter of the reduced diameter portion 25 of the first joint 3a is slightly larger than the outer diameter of the outer peripheral surface of the first element 41a. Further, a tapered portion 43 protruding in the inner diameter direction is formed at the end portion of the reduced diameter portion 25 on the opening portion 23 side, and a tapered surface 431 is formed on the inner side surface of the tapered portion 43.
　第一エレメント４１ａの外周面は本体３６ａの内周面の内径よりもわずかに小径に形成されている。エレメント４１の開口１０が、本体３６ａのフランジ部３８側に配置されるように挿入されている。第一エレメント４１ａは、雄ネジ部２０と本体３６ａの雌ネジ部３７との螺着によって連結されている。 The outer peripheral surface of the first element 41a is slightly smaller than the inner diameter of the inner peripheral surface of the main body 36a. The opening 10 of the element 41 is inserted so as to be disposed on the flange portion 38 side of the main body 36a. The first element 41a is connected by screwing the male screw portion 20 and the female screw portion 37 of the main body 36a.
　本実施形態の流体混合器では、本実施形態では第一エレメント４１ａ及び第二エレメント４１ｂの開口１０側の端面は平坦面となっているが、一方の端面には環状凹部を設け、他方の端面には環状凸部を設けて、環状凹部を環状凸部と係合させ、第一エレメント４１ａ及び第二エレメント４１ｂの流路軸線を一致させてもよい。また、開口１０側の面に孔や切り欠きなどの工具掛かり部を設けるとエレメント４１を本体３６に連結し易くなる。 In the fluid mixer of the present embodiment, the end surfaces on the opening 10 side of the first element 41a and the second element 41b are flat surfaces in this embodiment, but an annular recess is provided on one end surface and the other end surface is provided. An annular convex portion may be provided, and the annular concave portion may be engaged with the annular convex portion so that the flow path axes of the first element 41a and the second element 41b are made coincident. Further, if a tool hooking portion such as a hole or a notch is provided on the surface on the opening 10 side, the element 41 can be easily connected to the main body 36.
　本体３６及びエレメント４１の他の構成並びにフランジ式管継手５などのエレメント４１以外の部品の構成は、第一の実施形態と同様なので説明を省略する。 Other configurations of the main body 36 and the element 41 and the configurations of components other than the element 41 such as the flange-type pipe joint 5 are the same as those in the first embodiment, and thus description thereof is omitted.
　次に、図４を用いて本発明の第二の実施形態である流体混合器の作用について説明する。 Next, the operation of the fluid mixer according to the second embodiment of the present invention will be described with reference to FIG.
　流体混合器の上流側（図面では左側）で水及び薬液を混合させ、一時的に薬液の濃度が濃くなった状態で薬液を流入させたときに、配管内で部分的に濃度が濃い状態で流れる薬液は、第一開口部２３ａから第一エレメント４１ａの螺旋流路９に流入する。部分的に濃度が濃い状態で流れる薬液が螺旋流路９と分岐流路４２との接続部を流れると、薬液の一部が分岐流路４２Ａを流れて主流路１３を通って下流側（図面では右側）へと流れる。さらに、残りの薬液は螺旋流路９の下流側へ流れ、薬液が分岐流路４２Ｂ～Ｄの接続部を流れると、薬液が分岐流路４２Ｂ～Ｄに流れて、主流路１３を通って下流側へと流れる。 When water and chemicals are mixed on the upstream side (left side in the drawing) of the fluid mixer and the chemicals are flown in a state where the concentration of the chemicals is temporarily high, the concentration is partially high in the piping. The flowing chemical liquid flows into the spiral flow path 9 of the first element 41a from the first opening 23a. When the chemical liquid that flows in a partially concentrated state flows through the connection portion between the spiral flow path 9 and the branch flow path 42, a part of the chemical liquid flows through the branch flow path 42 </ b> A and passes through the main flow path 13 on the downstream side (drawing). Then right). Further, the remaining chemical liquid flows downstream of the spiral flow path 9, and when the chemical liquid flows through the connection portions of the branch flow paths 42 </ b> B to 42 </ b> D, the chemical liquid flows to the branch flow paths 42 </ b> B to 42 </ b> D Flows to the side.
　第一エレメント４１ａの主流路１３に流入した薬液は第二エレメント４１ｂの主流路１３に流入する。第二エレメント４１ｂの主流路１３に流入した薬液は、これまでとは逆の順序で第二エレメント４１ｂを通過し第２開口部２３ｂから流体混合器外へ流出する。すなわち、第二エレメント４１ｂの主流路１３に流入した薬液が分岐流路４２Ｅ～Ｈの接続部を流れると、薬液が分岐流路４２Ｅ～Ｈに流れて螺旋流路９を通って下流側へと流れる。このように、第１開口部２３ａから流体混合器に流入した、一時的に濃度が濃くなった状態の薬液は、エレメント４１を通過することによって時間差を伴って、分けられて流れることとなり、薬液が流れる方向の濃度分布をよりムラなく均一化して混合することができる。 The chemical solution flowing into the main channel 13 of the first element 41a flows into the main channel 13 of the second element 41b. The chemical liquid that has flowed into the main flow path 13 of the second element 41b passes through the second element 41b in the reverse order, and flows out of the fluid mixer through the second opening 23b. That is, when the chemical liquid that has flowed into the main flow path 13 of the second element 41b flows through the connection portions of the branch flow paths 42E to 42H, the chemical liquid flows to the branch flow paths 42E to 42H and passes through the spiral flow path 9 to the downstream side. Flowing. In this way, the chemical liquid that has flowed into the fluid mixer from the first opening 23a and temporarily concentrated has a time difference by passing through the element 41, and flows separately. The density distribution in the flowing direction can be made more uniform and mixed more uniformly.
　―第三の実施形態―
　次に、図５～６を参照して、本発明の第三の実施形態である流体混合器について説明する。図５は第三の実施形態に係る流体混合器を示す縦断面図である。第三の実施形態が第一の実施形態と異なる点は、主にエレメント４４の構造である。すなわち、エレメント４４に周方向に互いに位置をずらした複数の螺旋流路４７、４８が設けられている。なお、図１～３と同一の箇所には同一の符号を付し、以下では第一の実施形態との相違点を主に説明する。 -Third embodiment-
Next, a fluid mixer according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a longitudinal sectional view showing a fluid mixer according to the third embodiment. The difference of the third embodiment from the first embodiment is mainly the structure of the element 44. That is, the element 44 is provided with a plurality of spiral channels 47 and 48 that are displaced from each other in the circumferential direction. 1 to 3 are denoted by the same reference numerals, and differences from the first embodiment will be mainly described below.
　本実施形態の流体混合器では、第一エレメント４４ａの外周面には一端面から他端部側に向かって深さが漸次浅くなる第一螺旋溝４５及び第二螺旋溝４６が形成されている。第一螺旋溝４５及び第二螺旋溝４６は互いに同形状であり、第一螺旋溝４５及び第二螺旋溝４６の断面形状は互いに同一である。図６に示されているように、第一螺旋溝４５及び第二螺旋溝４６は互いに、周方向に位置をずらして、すなわち流路軸線方向に一定間隔を空けて形成されている。つまり、この場合では、２つの螺旋溝が第一エレメント４４ａの外周面で二重螺旋状の形状を描くことになる。さらに第一螺旋溝４５及び第二螺旋溝４６は一端面まで溝が延設されており、他端面には前記溝が到達しないように形成されている。第一螺旋溝４５及び第二螺旋溝４６は、本体２の内周面と共にそれぞれ第一螺旋流路４７及び第二螺旋流路４８を形成する。 In the fluid mixer of the present embodiment, the first spiral groove 45 and the second spiral groove 46 are formed on the outer peripheral surface of the first element 44a so that the depth gradually decreases from one end surface toward the other end side. . The first spiral groove 45 and the second spiral groove 46 have the same shape, and the first spiral groove 45 and the second spiral groove 46 have the same cross-sectional shape. As shown in FIG. 6, the first spiral groove 45 and the second spiral groove 46 are formed so as to be displaced from each other in the circumferential direction, that is, at a constant interval in the flow path axis direction. That is, in this case, the two spiral grooves draw a double spiral shape on the outer peripheral surface of the first element 44a. Further, the first spiral groove 45 and the second spiral groove 46 extend to one end surface, and are formed so as not to reach the other end surface. The first spiral groove 45 and the second spiral groove 46 form a first spiral channel 47 and a second spiral channel 48 together with the inner peripheral surface of the main body 2.
　本実施形態において、エレメント４４の他の構成及び本体２などのエレメント４４以外の部品の構成は、第一の実施形態と同様なので説明を省略する。また、第三の実施形態において流体が流れる方向の濃度分布がムラなく均一化される作用は、第一の実施形態と同様なので説明を省略する。 In the present embodiment, other configurations of the element 44 and configurations of parts other than the element 44 such as the main body 2 are the same as those in the first embodiment, and thus description thereof is omitted. Further, in the third embodiment, the effect of uniformizing the concentration distribution in the direction in which the fluid flows is the same as in the first embodiment, and thus the description thereof is omitted.
　以上の流体混合器における本体２、３６、継手３、エレメント７、４１、４４、キャップナット４、止め輪６、フランジ式管継手５の材質は、樹脂製であればポリ塩化ビニル、ポリプロピレン、ポリエチレンなど、いずれでもよい。特に流体に腐食性流体を用いる場合は、ポリテトラフルオロエチレン、ポリビニリデンフルオロライド、テトラフルオロエチレン・パーフルオロアルキルビニルエーテル共重合樹脂などのフッ素樹脂であることが好ましく、フッ素樹脂製であれば腐食性流体に用いることができ、かつ腐食性ガスが透過しても配管部材の腐食の心配がなくなるため好適である。本体２、３６または筐体１を形成する部材または部材の一部を透明または半透明な材質で形成してもよく、この場合には流体の混合の状態を目視で確認できるため好適である。また、流体混合器に流す物質によって、各部品の材質は、鉄、銅、銅合金、真鍮、アルミニウム、ステンレス、チタンなどの金属または合金であってもよい。 In the above fluid mixer, the main body 2, 36, joint 3, elements 7, 41, 44, cap nut 4, retaining ring 6, flange type pipe joint 5 are made of polyvinyl chloride, polypropylene, polyethylene if made of resin. Any of these may be used. In particular, when a corrosive fluid is used as the fluid, it is preferably a fluororesin such as polytetrafluoroethylene, polyvinylidene fluoride, or tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer resin. This is suitable because it can be used for fluids, and even if corrosive gas permeates, there is no risk of corrosion of piping members. A member or a part of the member forming the main body 2 or 36 or the housing 1 may be formed of a transparent or translucent material. In this case, it is preferable because the state of fluid mixing can be visually confirmed. Moreover, the material of each component may be a metal or alloy such as iron, copper, copper alloy, brass, aluminum, stainless steel, titanium, etc., depending on the substance to be passed through the fluid mixer.
　本発明において、本体３６、継手３、エレメント７、４１、４４、キャップナット４、止め輪６、フランジ式管継手５は各々、同形状かつ一対の部品で構成されることが望ましい。各構成要素を同形状かつ一対の部品で構成するにすることによって、部品点数を少なくすることができ、部品の生産や管理が容易になるだけでなく、これらを組み立てやすくすることができる。 In the present invention, the main body 36, the joint 3, the elements 7, 41, 44, the cap nut 4, the retaining ring 6, and the flange-type pipe joint 5 are each preferably formed of the same shape and a pair of parts. By configuring each component with the same shape and a pair of parts, the number of parts can be reduced, and not only the production and management of parts can be facilitated, but also these can be easily assembled.
　上記の実施形態では、エレメント７、４１、４４として、主流路１３と主流路１３に対し略同心状に形成される螺旋流路９、４７、４８を主流路１３と連通する複数の分岐流路１６を有するエレメント７、４１、４４を挙げたが、エレメント７、４１、４４の形状は混合指向性を有していればどのような形状でもよく、特に限定されない。また、各々のエレメント７、４１、４４同士の間の隙間３３に乱流格子、整流格子、フィルターなどを装着してもよい。 In the above embodiment, as the elements 7, 41, and 44, a plurality of branch channels that communicate with the main channel 13 and the spiral channels 9, 47, and 48 that are formed substantially concentrically with the main channel 13. Although the elements 7, 41 and 44 having 16 are listed, the shapes of the elements 7, 41 and 44 are not particularly limited as long as they have mixed directivity. Further, a turbulent grid, a rectifying grid, a filter, or the like may be attached to the gap 33 between the elements 7, 41, 44.
　なお、本発明について特定の実施形態に基づいて詳述しているが、当業者であれば、本発明の請求の範囲及び思想から逸脱することなく様々な変更、修正等が可能である。 Although the present invention has been described in detail based on specific embodiments, those skilled in the art can make various changes and modifications without departing from the scope and spirit of the present invention.
　１　　筐体
　２　　本体
　３ａ　　第一継手
　３ｂ　　第二継手
　４ａ　　第一キャップナット
　４ｂ　　第二キャップナット
　５ａ　　第一フランジ式管継手
　５ｂ　　第二フランジ式管継手
　６ａ　　第一止め輪
　６ｂ　　第二止め輪
　７ａ　　第一エレメント
　７ｂ　　第二エレメント
　８　　螺旋溝
　９　　螺旋流路
　１０　　開口
　１１　　螺旋端部
　１２　　有底孔
　１３　　主流路
　１４　　開口端部
　１５　　連通孔
　１６　　分岐流路
　１７　　係合部
　１８　　止水部材
　１９　　環状溝
　２０　　雄ネジ部
　２１　　止水部材
　２２　　環状溝
　２３ａ　　第一開口部
　２３ｂ　　第二開口部
　２４　　胴部
　２５　　縮径部
　２６　　雄ネジ部
　２７　　雌ネジ部
　２８　　雌ネジ部
　２９　　内鍔部
　３０　　短管部
　３１　　フランジ部
　３２　　環状溝部
　３３　　嵌合部
　３４　　鍔部
　３５　　隙間
　３６ａ　　第一本体
　３６ｂ　　第二本体
　３７　　雌ネジ部
　３８　　フランジ部
　３９　　ガスケット
　４０　　クランプ
　４１ａ　　第一エレメント
　４１ｂ　　第二エレメント
　４２　　分岐流路
　４３　　テーパー部
　４３１　　テーパー面
　４４ａ　　第一エレメント
　４４ｂ　　第二エレメント
　４５　　第一螺旋溝
　４６　　第二螺旋溝
　４７　　第一螺旋流路
　４８　　第二螺旋流路 DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Main body 3a 1st coupling 3b 2nd coupling 4a 1st cap nut 4b 2nd cap nut 5a 1st flange type pipe fitting 5b 2nd flange type pipe coupling 6a 1st retaining ring 6b 2nd retaining ring 7a 1st Element 7b Second element 8 Spiral groove 9 Spiral flow path 10 Opening 11 Spiral end part 12 Bottomed hole 13 Main flow path 14 Opening end part 15 Communication hole 16 Branching flow path 17 Engagement part 18 Water stop member 19 Annular groove 20 Male screw Part 21 Water stop member 22 Annular groove 23a First opening part 23b Second opening part 24 Body part 25 Reduced diameter part 26 Male thread part 27 Female thread part 28 Female thread part 29 Inner flange part 30 Short pipe part 31 Flange part 32 Annular part Groove portion 33 Fitting portion 34 Gutter portion 35 Gap 36a First body 36b Second body 37 Female thread portion 38 Flange portion 39 Gasket 40 clamps 41a first element 41b second element 42 the branch flow path 43 tapered portion 431 tapered surface 44a first element 44b second element 45 first helical grooves 46 the second helical groove 47 first spiral flow path 48 second spiral flow path

Claims (4)

  1. 　第１開口部及び第２開口部を有する筐体と、前記筐体の内部に位置するエレメントとを有する流体混合器において、
    　混合指向性を有しかつ同形状に形成された前記エレメント同士が、前記筐体内部の流路軸線上で対向した状態で配置されている、
    　流体混合器。     In a fluid mixer having a housing having a first opening and a second opening, and an element located inside the housing,
    The elements having mixed directivity and formed in the same shape are arranged in a state of facing each other on the flow path axis inside the housing,
    Fluid mixer.
  2. 　前記筐体内に配置された一対の前記エレメントが互いに離間して配置されている、
    　請求項１に記載の流体混合器。     A pair of the elements arranged in the housing are arranged apart from each other;
    The fluid mixer according to claim 1.
  3. 　前記エレメントには、一端部と他端部との間の少なくとも一部における前記エレメントの外周面に螺旋溝が形成され、
    　前記他端部には開口部が形成され、
    　主流路が前記螺旋溝の螺旋の中心軸線と略同軸に形成され、
    　複数の連通孔が各々、前記螺旋溝を前記主流路と連通するように形成されている、
    　請求項１または２に記載の流体混合器。     In the element, a spiral groove is formed on the outer peripheral surface of the element in at least a part between the one end and the other end,
    An opening is formed in the other end,
    The main flow path is formed substantially coaxially with the spiral central axis of the spiral groove;
    A plurality of communication holes are each formed to communicate the spiral groove with the main flow path,
    The fluid mixer according to claim 1 or 2.
  4. 　同形状である複数の前記螺旋溝が、前記エレメントの外周面に設けられており、
    　各々の螺旋溝が互いに流路軸線方向に一定間隔を空けて形成されている、
    　請求項３に記載の流体混合器。     A plurality of the spiral grooves having the same shape are provided on the outer peripheral surface of the element,
    Each spiral groove is formed at a certain interval in the flow path axis direction.
    The fluid mixer according to claim 3.
PCT/JP2012/074294 2011-09-27 2012-09-21 Fluid mixer WO2013047393A1 (en)

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EP2886188A1 (en) * 2013-12-23 2015-06-24 Iosif Fedorovskiy Activation device for activating a liquid
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WO2020099865A1 (en) * 2018-11-16 2020-05-22 Fujifilm Diosynth Biotechnologies Uk Limited Static mixer
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JP2022051501A (en) * 2020-09-18 2022-03-31 勝彦 近藤 Sterile water production apparatus
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EP2886188A1 (en) * 2013-12-23 2015-06-24 Iosif Fedorovskiy Activation device for activating a liquid
EP3888778A3 (en) * 2017-01-31 2021-12-15 Kinboshi Inc. Fine bubble generation apparatus
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WO2022125158A3 (en) * 2020-09-15 2022-09-09 Vortex Pipe Systems LLC Material flow modifier and apparatus comprising same
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JP2022051501A (en) * 2020-09-18 2022-03-31 勝彦 近藤 Sterile water production apparatus
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