WO2002043846A1 - Dispositif generateur de cavitation et appareil melangeur de fluide utilisant ledit dispositif - Google Patents
Dispositif generateur de cavitation et appareil melangeur de fluide utilisant ledit dispositif Download PDFInfo
- Publication number
- WO2002043846A1 WO2002043846A1 PCT/JP2000/008364 JP0008364W WO0243846A1 WO 2002043846 A1 WO2002043846 A1 WO 2002043846A1 JP 0008364 W JP0008364 W JP 0008364W WO 0243846 A1 WO0243846 A1 WO 0243846A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- semi
- chord
- fluid
- elliptical
- pipe
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 59
- 238000005192 partition Methods 0.000 claims abstract description 20
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 29
- 230000001133 acceleration Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 208000031481 Pathologic Constriction Diseases 0.000 description 4
- 230000036262 stenosis Effects 0.000 description 4
- 208000037804 stenosis Diseases 0.000 description 4
- 238000005273 aeration Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- 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
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
-
- 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
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
- B01F25/43162—Assembled flat 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
- B01F25/431971—Mounted on the wall
-
- 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
- B01F25/4319—Tubular elements
Definitions
- the present invention relates to an apparatus for generating a cavitation (cavity phenomenon) for generating a local constriction in a fluid passing through a tubular body and an improvement of a fluid mixing apparatus using the apparatus.
- a cavitation cavity phenomenon
- cavitation cavity phenomenon
- chord sides of a pair of semi-elliptical blades cross each other in an inclined manner, and the chord side edge on the upstream side of the intersection is the cross section of the tube.
- a guide vane closed with a triangular partition plate that divides into two with the partition edge of the guide vane facing upstream and the arc edge of the semi-elliptical vane as the inner wall of the tube.
- a first object of the present invention is to further improve the above-described cavity generation device, and to provide a device for promoting the acceleration of fluid to generate a cavity with a larger negative pressure.
- a second object of the present invention is to use the above-described cavitation generator to mix
- An object of the present invention is to provide an efficient fluid mixing device.
- the present invention provides a pipe for pumping a fluid, wherein: a chord side edge of a pair of semi-elliptical blades intersects at an angle; And a guide vane that is closed by a partition plate that bisects the cross section of the tubular body and that has a pair of semi-elliptical blades and the arc side edges of which are joined to the inner wall of the tubular body.
- the fluid passage between the downstream chord edge of the intersection of one semi-elliptical vane of the guide van and the upstream chord edge of the intersection of the other semi-elliptical vane is narrowed by a baffle plate or the like. Partially closed.
- the helical fluid that has passed through the guide vane in the tubular body has an increased centrifugal acceleration due to the constriction of the fluid passage, and the cavity with a larger negative pressure is located downstream of the guide vane in the tubular body.
- the fluid mixing device of the present invention comprises: a pipe for pumping a fluid;
- the space between the upstream chord side edges is closed by a partition plate that bisects the cross section of the pipe, and the upstream chord at the intersection between the downstream chord edge of one semi-elliptical shaped board and the other semi-elliptical blade.
- a guide vane in which the fluid passage between the edges is partially closed by a narrowing means such as a baffle plate and the arc-side edges of the pair of semi-elliptical blades are joined to the inner wall of the pipe.
- a plurality of protrusions radially protruding from the inner peripheral wall surface on the downstream side of the tube.
- the means for constricting the fluid passage of the guide vane may preferably be a plate integral with the partition plate that bisects the cross section of the tubular body, and a portion downstream of the intersection of the semi-elliptical blade.
- a configuration in which a part or the whole of the chord edge is bent or curved toward the channel narrowing side may be adopted.
- FIG. 1 is a partially cutaway perspective view showing a schematic configuration of a preferred cavitation generator according to the present invention.
- FIGS. 2 to 7 are partially cutaway perspective views showing a schematic configuration of a cavitation generator using a stenosis means of another embodiment.
- FIG. 8 is a partially cutaway perspective view showing a schematic configuration of a preferred fluid mixing device using the cavitation generator according to the present invention.
- a cavitation generating apparatus 1 of the present invention comprises a pipe 2 for pressure-feeding a fluid composed of a gas, a liquid, a fluidized solid, or a mixture thereof in the direction of an arrow, and is installed in the pipe 2. It consists of three guide vanes.
- the guide vane 3 crosses the chordal edges 5a and 5b of the pair of semi-elliptical blades 4a and 4b in an inclined manner, and connects the tube body 2 between the chordal edges on the upstream side of the intersection. Is closed by a partition plate 5 that bisects the cross section of the half-elliptical blade 4a, and a downstream chord edge at the intersection of the semi-elliptical blade 4a and a cross-edge upstream chord of the other semi-elliptical blade 4b.
- the region to be formed, that is, the fluid passage 6 is partially closed by a narrowing means 7 such as a baffle plate, and the arc side of the pair of semi-elliptical blades 4a, 41> is formed.
- the edges 80 1 and 8 b are connected to the inner wall of the pipe 2.
- the cavitation generator 1 of the present invention provides the guide vane 3 with the separate constriction means 7 to impart a greater centrifugal acceleration to the fluid passing through the guide vane 3, and A large negative pressure cavitation (cavity phenomenon) is generated in the pipe downstream of the duct 3.
- the stenosis means 7 in the embodiment of FIG. 1 is constituted by a part of a rectangular plate integrated with the partition plate 5, and the downstream chord side of the intersection of one semi-elliptical blade and the other half.
- the fluid passage 6 is narrowed by closing the space between the chords on the upstream side of the intersection of the elliptical blade with the narrowing means 7 forming a part of the rectangular plate.
- the embodiment in which the stenosis means 7 is formed by a plate integral with the partition plate 5 is not limited to the case where the partition plate 5 is formed in a square shape as shown in FIG. 1, and the closed area as shown in FIG. 2 and FIG. May be made larger (see Fig. 2) or a polygon with a smaller closed area (see Fig. 3).
- the stenosis means 7 may be provided locally at the corner of the fluid passage 6 as shown in FIGS. 4, 5, and 6.
- constriction means 7 of the guide vane 3 As shown in FIG. 7, the constriction means 7 of the guide vane 3 according to the present invention, as shown in FIG.
- the fluid passage 6 between the downstream chord edge of the crossing portion of one blade and the upstream chord edge of the crossing portion of the other blade may be narrowed or bent.
- the fluid for example, a mixed fluid of air and water
- the fluid that is pumped through the pipe 2 in the direction of the arrow is separated into two shunts by the partition plate 5 and rectified into two semi-elliptical blades 4 a and 4 b.
- the fluid By being guided, it is transformed into a spiral flow with a strong twist.
- the fluid generates a large shear stress in the fluid due to abrupt division and flow change by the partition plate 5 and the vanes 4a, 4b, and the fluid is mixed as a turbulent flow of fine liquid particles and fine bubbles.
- this fluid is constricted compared to the cross-sectional area of the pipe 2 by the partition plate 5, the variable flow path formed by the pair of semi-elliptical blades 4a, 4b and the inner wall of the pipe 2.
- the pressure is accelerated, and a negative pressure proportional to the square of the fluid peripheral velocity is generated in the enlarged area downstream of the guide vane 3, but the present invention further restricts the fluid passage 6 by the constriction means 7.
- the peripheral velocity of the fluid that has passed through the guide vane 3 is further increased, and a pressure-intensifying section is provided on the inner peripheral wall side in the pipe 2 in the flow path expansion area downstream of the guide vane 3. A cavitation that is formed and has a larger negative pressure at the shaft core occurs.
- the positive-pressure gas-liquid mixed fluid pumped through the pipe 2 undergoes extremely vigorous stirring and mixing in the negative pressure region downstream of the guide vein, and exhibits a chaotic state.
- FIG. 8 shows a fluid mixing device 9 using the above-described cavity generation device 1.
- the fluid mixing device 9 is a guide in which the above-mentioned constriction means 7 is provided in the pipe 2.
- Dove 3 is installed, The plurality of protrusions 10 are fixed radially, and the swirling flow of the fluid to which a large centrifugal acceleration has been applied as described above collides with the protrusions 10, resulting in intense mixing as described below. ⁇ Stirring action is generated.
- the swirling fluid passing through the guide vane 3 and given a large centrifugal acceleration is caused by the above-described cavity phenomenon.
- the liquid having a large mass moves toward the fluidized bed to form a liquid layer
- the gas having a small mass moves to the inside of the liquid layer to form a gas layer having an interface with the liquid layer. Turns at a faster speed than the liquid layer.
- the protrusion 10 is attached such that the head 11 faces the axis of the tube 2 with respect to the swirling flow, and the head 11 becomes thicker in the liquid layer.
- the liquid layer of the swirling flow captures the kinetic energy of the gas layer at a higher speed than the liquid layer and goes up to the head of the protrusion 10 to form a liquid film on the surface of the head of the protrusion 10.
- This liquid film is exfoliated by a gas layer having a speed higher than the liquid layer speed, is converted into a large number of fine particles, and is scattered radially in a downstream gas layer, thereby causing gas-liquid mixing.
- the scattered fine particles of the liquid in the gas-liquid mixture move toward the original liquid layer direction by the action of the large centrifugal force of the swirling flow, while the swirling flow passing through the guide vane 3 A large amount of microbubbles are suspended in the liquid and move away from the liquid layer to the inside of the tube 2, where a centripetal force of the bubbles is generated.
- the fluid moves outward by centrifugal force in addition to gas-liquid mixing by shearing stress when passing through the guide vane 3 and gas-liquid mixing and stirring when colliding with the protrusion 10.
- the gas and liquid are mixed violently by the continuous collision of the liquid particles that move and the fine bubbles that move inward due to centripetal force, and a high degree of gas-liquid reaction is achieved.
- the shape of the protrusion 10 may be a protrusion having a hemispherical head and a frustum, a simple cylinder as shown in FIG. 10, or any other shape. Can be used.
- the fluid mixing device of the present invention can be used for aeration, neutralization, aging, and other various mixing and stirring. It is used for agitation and reaction.However, when it is used for the treatment of fluid containing fibrous substances, the fibrous substances are easily entangled with the protrusions 10, so in this case, as shown in Fig. 11 As described above, it is desirable that the fiber-shaped material is formed on a curved mountain-shaped projection so that it is not easily entangled, and that even if it is entangled, it can be easily removed with the flow.
- the partition plate 5 of the guide vane 3 is arranged upward, but the present invention is not limited to this, and it can be used in any form, such as downward or sideways, depending on the purpose of use.
- the partition plate 5 when the device of the present invention is used for aeration, the partition plate 5 is installed in water so that the partition side faces downward (opposite direction in FIG. 8), and the lower side of the guide vane is used. Air from the air. Further, when used in a reaction apparatus, it can be used by being interposed horizontally or vertically in the middle of the flow pipe of the processing fluid. Industrial applicability
- the cavitation generating apparatus of the present invention and the fluid mixing apparatus using the cavitation generating apparatus generate a large negative pressure cavity phenomenon downstream of the guide vanes, and violently. Since it can obtain the stirring and mixing action, it can be widely used for promoting the reaction of various fluids, air conditioning, aeration, degassing, and activity purification.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11170742A JP2000354749A (ja) | 1999-06-17 | 1999-06-17 | キャビテーション発生装置及びこの装置を使用した流体混合装置並びにこの流体混合装置に使用する混合突起物 |
US10/416,512 US6830370B1 (en) | 2000-11-28 | 2000-11-28 | Cavitation generating device and fluid mixing device using the device |
PCT/JP2000/008364 WO2002043846A1 (fr) | 1999-06-17 | 2000-11-28 | Dispositif generateur de cavitation et appareil melangeur de fluide utilisant ledit dispositif |
EP00977974A EP1346762A4 (en) | 2000-11-28 | 2000-11-28 | DEVICE FOR PRODUCING CAVITATIONS AND DEVICE USING THE DEVICE FOR MIXING FLUIDS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11170742A JP2000354749A (ja) | 1999-06-17 | 1999-06-17 | キャビテーション発生装置及びこの装置を使用した流体混合装置並びにこの流体混合装置に使用する混合突起物 |
PCT/JP2000/008364 WO2002043846A1 (fr) | 1999-06-17 | 2000-11-28 | Dispositif generateur de cavitation et appareil melangeur de fluide utilisant ledit dispositif |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002043846A1 true WO2002043846A1 (fr) | 2002-06-06 |
Family
ID=27773212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/008364 WO2002043846A1 (fr) | 1999-06-17 | 2000-11-28 | Dispositif generateur de cavitation et appareil melangeur de fluide utilisant ledit dispositif |
Country Status (3)
Country | Link |
---|---|
US (1) | US6830370B1 (ja) |
EP (1) | EP1346762A4 (ja) |
WO (1) | WO2002043846A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014055232A1 (en) * | 2012-10-01 | 2014-04-10 | Ecosphere Technologies, Inc. | Hydrodynamic cavitation device |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004019241A1 (de) * | 2004-04-16 | 2005-11-03 | Cellmed Ag | Injizierbare vernetzte und unvernetzte Alginate und ihre Verwendung in der Medizin und in der ästhetischen Chirurgie |
JP5067695B2 (ja) * | 2005-06-20 | 2012-11-07 | 株式会社オーエイチ・アール | バラスト水処理装置 |
US8936392B2 (en) | 2010-06-15 | 2015-01-20 | Ecosphere Technologies, Inc. | Hydrodynamic cavitation device |
US20110305103A1 (en) * | 2010-06-15 | 2011-12-15 | Mcguire Dennis | Hydrodynamic cavitation device |
EP3374070B1 (en) * | 2015-11-13 | 2023-08-09 | Re Mixers, Inc. | Static mixer |
CN105327628B (zh) * | 2015-11-27 | 2017-08-25 | 北京航天动力研究所 | 一种低流阻旋流扩散气液混合器 |
EP3669064B1 (en) | 2017-08-15 | 2021-04-21 | Volvo Truck Corporation | Vaned valve for exhaust gas recirculation line |
EP3479893A1 (en) * | 2017-11-06 | 2019-05-08 | Sulzer Chemtech AG | An improved mixer duct and a process of using it |
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JPS54105972U (ja) * | 1978-01-11 | 1979-07-26 | ||
JPS62269733A (ja) * | 1986-05-15 | 1987-11-24 | Sanko Seisakusho:Kk | 混合素子及び該混合素子を内蔵した混合装置 |
JPH09150044A (ja) * | 1995-11-27 | 1997-06-10 | O H L Ryutai Kogaku Kenkyusho:Kk | 液体における気泡微細粒子化装置 |
JP7063597B2 (ja) * | 2017-05-04 | 2022-05-09 | シリコン・バレイ・マイクロ・イー・コーポレーション | 使用回数計数およびスマートフォン認証を備えるハンドスタンプ |
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US3643927A (en) * | 1970-10-15 | 1972-02-22 | Phillips Petroleum Co | Stationary mixture and method for mixing material |
US3652061A (en) * | 1971-03-04 | 1972-03-28 | Dow Chemical Co | Interfacial surface generator and method of preparation thereof |
JPS49113774A (ja) * | 1973-03-05 | 1974-10-30 | ||
JPS49134571A (ja) * | 1973-04-28 | 1974-12-25 | ||
JPS52125465A (en) * | 1975-11-14 | 1977-10-21 | Masahiro Takeda | Method of promoting reaction of fluid mixture in stream feeding way |
JPS54105972A (en) | 1978-02-07 | 1979-08-20 | Jeol Ltd | Electron beam exposure device |
JPS5916106Y2 (ja) * | 1978-06-20 | 1984-05-12 | 正博 武田 | 自給式混合装置 |
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JP3390232B2 (ja) * | 1993-11-04 | 2003-03-24 | 株式会社オー・エイチ・アール | オゾン反応装置 |
JP3009353B2 (ja) * | 1995-08-23 | 2000-02-14 | 幸子 林 | 水処理方法および水処理設備 |
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JPH1066850A (ja) * | 1996-08-29 | 1998-03-10 | O H L Ryutai Kogaku Kenkyusho | 連続通水式ガス溶解装置の溶解度調節方法及びこの方法を実施する連続通水式ガス溶解装置 |
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2000
- 2000-11-28 WO PCT/JP2000/008364 patent/WO2002043846A1/ja not_active Application Discontinuation
- 2000-11-28 EP EP00977974A patent/EP1346762A4/en not_active Withdrawn
- 2000-11-28 US US10/416,512 patent/US6830370B1/en not_active Expired - Fee Related
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JPS54105972U (ja) * | 1978-01-11 | 1979-07-26 | ||
JPS62269733A (ja) * | 1986-05-15 | 1987-11-24 | Sanko Seisakusho:Kk | 混合素子及び該混合素子を内蔵した混合装置 |
JPH09150044A (ja) * | 1995-11-27 | 1997-06-10 | O H L Ryutai Kogaku Kenkyusho:Kk | 液体における気泡微細粒子化装置 |
JP7063597B2 (ja) * | 2017-05-04 | 2022-05-09 | シリコン・バレイ・マイクロ・イー・コーポレーション | 使用回数計数およびスマートフォン認証を備えるハンドスタンプ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014055232A1 (en) * | 2012-10-01 | 2014-04-10 | Ecosphere Technologies, Inc. | Hydrodynamic cavitation device |
Also Published As
Publication number | Publication date |
---|---|
US6830370B1 (en) | 2004-12-14 |
EP1346762A4 (en) | 2004-10-20 |
EP1346762A1 (en) | 2003-09-24 |
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