CN111467991B - A passive multi-fluid mixer - Google Patents
A passive multi-fluid mixer Download PDFInfo
- Publication number
- CN111467991B CN111467991B CN202010157436.7A CN202010157436A CN111467991B CN 111467991 B CN111467991 B CN 111467991B CN 202010157436 A CN202010157436 A CN 202010157436A CN 111467991 B CN111467991 B CN 111467991B
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- cylindrical shaft
- casing
- fluid mixer
- fluid
- guide vane
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- 239000012530 fluid Substances 0.000 title claims abstract description 46
- 230000004323 axial length Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
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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
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
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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
- B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
- B01F27/2123—Shafts with both stirring means and feeding or discharging means
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
本发明提供了一种被动式多流体混合器，包括壳体和周向旋流发生器，所述壳体为两端开口的中空圆柱；所述周向旋流发生器包括圆柱轴和导流片；所述圆柱轴与壳体同轴设置，所述导流片均匀设置于圆柱轴侧面；所述导流片的宽度为壳体内径与圆柱轴的外径之差；所述圆柱轴沿轴线方向开有通孔；本发明提供的多流体混合器具有结构简单，体积小，加工方便且成本低廉，拆装维护简单等特点，用于各种条件下两种及以上的流体的混合，并且在使用的同时不会受到空间，环境等的影响，大大提升混合效率，并且在混合流体的同时可以对混合器进行加热或冷却，广泛使用各种流体的混合。
The invention provides a passive multi-fluid mixer, comprising a casing and a circumferential swirl generator, wherein the casing is a hollow cylinder with two ends open; the circumferential swirl generator comprises a cylindrical shaft and a guide vane; the cylinder The shaft and the casing are coaxially arranged, and the guide vanes are evenly arranged on the side surface of the cylindrical shaft; the width of the guide vanes is the difference between the inner diameter of the casing and the outer diameter of the cylindrical shaft; The multi-fluid mixer provided by the present invention has the characteristics of simple structure, small volume, convenient processing, low cost, simple disassembly and maintenance, etc. It will not be affected by space, environment, etc., greatly improve the mixing efficiency, and the mixer can be heated or cooled while mixing fluids, and the mixing of various fluids is widely used.
Description
Technical Field
The invention belongs to the technical field of mixers, and particularly relates to a passive multi-fluid mixer.
Background
The mixer is a machine for mixing objects with different properties together, so that different materials are fully mixed.
Mixers currently on the market can be broadly divided into active and passive types.
Generally, the active mixer has a complex structure, and usually uses additional power such as a motor to drive the rotor to stir the mixed fluid to increase the disturbance, thereby achieving the purpose of uniform mixing. Mixers of this type are subject to a number of limitations in use, for example the mixer must be energised in use; the mixer must be placed right when in use; mixing while not heating or cooling; the mixer is subject to its own size constraints when in use.
The passive mixers are developed into various passive mixers such as a layered mixer, a T-type mixer, a C-type mixer and the like, the mixers mostly depend on the complexity of a mixing channel to increase disturbance to mixed fluid to achieve the purpose of mixing, and the method has the advantages of longer mixing channel, low mixing efficiency, large flow resistance loss, relatively complex structure and inconvenient maintenance.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a passive multi-fluid mixer, which has the characteristics of simple structure, small volume, convenient processing, low cost, simple disassembly, assembly and maintenance and the like, is used for mixing two or more fluids under various conditions, is not influenced by space, environment and the like when in use, greatly improves the mixing efficiency, can heat or cool the mixer while mixing the fluids, and is widely used for mixing various fluids.
The technical scheme is as follows: a passive multi-fluid mixer comprises a shell and a circumferential vortex generator, wherein the shell is a hollow cylinder with two open ends; the circumferential vortex generator comprises a cylindrical shaft and a flow deflector; the cylindrical shaft and the shell are coaxially arranged, and the flow deflectors are uniformly arranged on the side surface of the cylindrical shaft; the width of the flow deflector is the difference between the inner diameter of the shell and the outer diameter of the cylindrical shaft; the cylindrical shaft is provided with a through hole along the axis direction.
Further, the cross section of the flow deflector is rectangular; the rectangular flow deflector has the axial length K along the cylindrical shaft, which satisfies K belongs to [7d, 13d ], the thickness delta belongs to [0.3d, 0.5d ], and d is the inner diameter of the through hole of the cylindrical shaft.
Further, the cross section of the flow deflector is a sector ring; wherein the radius r of the flow deflector belongs to [20d, 30d ], and d is the inner diameter of the through hole of the cylindrical shaft.
Furthermore, the included angle alpha epsilon between the flow deflector and the axis of the cylindrical shaft is [20 degrees ], 70 degrees ].
Further, the number of the guide vanes is preferably 5-20.
Further, the inner diameter of the shell is [8d, 12d ], the outer diameter of the shell is [8.3d, 12.5d ], the length of the shell is [30d, 50d ], and d is the inner diameter of the through hole of the cylindrical shaft.
Further, the outer diameter psi ∈ [3d, 7d ] of the cylindrical shaft, the length l ∈ [8d, 14d ] of the cylindrical shaft, and d is the inner diameter of the through hole of the cylindrical shaft.
Further, the distance S epsilon between the upper end surface of the circumferential vortex generator and the inlet of the shell is [10d, 25d ], wherein d is the inner diameter of the through hole of the cylindrical shaft.
Has the advantages that: compared with the prior art, the technical scheme adopted by the invention has the following effects:
the invention has simple structure, easy processing and low cost, and the core part is a circumferential vortex generator which can simultaneously mix 2 or more than 2 fluids. And the mixed fluid may be heated or cooled while mixing. The invention utilizes special rotational flow and backflow structure, when the mixed fluid flows into the inlet, after a part of fluid is acted by the flow deflector, the fluid is accelerated due to the reduction of the flow area; and because of the action of the guide vanes, the flow direction of the fluid is changed to generate circumferential vortex, and the fluid disturbance is very severe. The other part of the fluid flows through the hollow cylinder, the fluid is accelerated due to the reduction of the flow area, and when the fluid flows out of the hollow cylinder, a reverse pressure gradient is generated due to the fact that the fluid does not flow downstream of the hollow cylinder, and therefore axial backflow is generated. Under the combined action of the circumferential vortex and the axial backflow, the fluid is fully mixed.
Drawings
FIG. 1 is a block diagram of a passive multiple fluid mixer according to the present invention;
FIG. 2 is a housing construction view provided by the present invention;
FIG. 3 is a block diagram of a circumferential vortex generator provided by the present invention;
FIG. 4 is a schematic view of a cylindrical shaft structure provided by the present invention;
fig. 5 is a schematic structural view of a single flow deflector provided by the present invention;
fig. 6 is a schematic structural view of a fan-shaped annular flow deflector provided by the present invention;
FIG. 7 is a schematic view of the fluid movement during operation of the present invention.
Description of the reference numerals
1-an inlet; 2-an outlet; 3-a shell; 4-a cylindrical shaft; 5-flow deflectors.
Detailed Description
The invention is further explained below with reference to the drawings.
A passive multiple fluid mixer as shown in fig. 1 comprises a housing 3 and a circumferential swirl generator. The housing 3 is a hollow cylinder with openings at both ends. The circumferential swirl generator comprises a cylindrical shaft 4 and a deflector 5. The cylindrical shaft 4 and the shell 3 are coaxially arranged, and the flow deflectors 5 are uniformly arranged on the side surface of the cylindrical shaft. The width of the deflector 5 is the difference between the inner diameter of the housing 4 and the outer diameter of the cylindrical shaft. The cylindrical shaft is provided with a through hole along the axis direction.
The guide vane can be rectangular or fan-ring shaped in cross section. When the cross section of the flow deflector is rectangular, the axial length K of the flow deflector along the cylindrical shaft meets K belonging to [7d, 13d ], and the thickness delta belonging to [0.3d, 0.5d ] of the flow deflector; when the cross section of the guide vane is a fan ring, the radius r of the guide vane is equal to [20d, 30d ], and d is the inner diameter of the through hole of the cylindrical shaft.
The included angle alpha epsilon between the flow deflectors and the axis of the cylindrical shaft is 20 degrees and 70 degrees, and the number of the included angle alpha epsilon is preferably 5-20.
As shown in FIG. 2, the dimensions of the shell satisfy that the inner diameter of the shell is [8d, 12d ], the outer diameter of the shell is [8.3d, 12.5d ], the length of the shell is [30d, 50d ], and d is the inner diameter of the through hole of the cylindrical shaft.
As shown in FIG. 4, the cylindrical shaft outer diameter ψ e [3d, 7d ], the cylindrical shaft length l e [8d, 14d ], where d is the cylindrical shaft through-hole inner diameter.
When the mixing device works, the fluid to be mixed flows into the inlet, and after a part of the fluid is acted by the flow deflector, the fluid is accelerated due to the reduction of the flow area; because of the action of the flow deflector, the flowing direction of the fluid is changed to generate circumferential vortex, and the fluid disturbance is very violent; and the other part of the fluid flows through the hollow cylinder, the fluid is accelerated due to the reduction of the flow area, when the fluid flows out of the hollow cylinder, a reverse pressure gradient is generated due to the fact that the fluid does not flow downstream of the hollow cylinder, so that axial backflow is generated, and the fluid is fully mixed under the combined action of the circumferential vortex and the axial backflow, as shown in fig. 7.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157436.7A CN111467991B (en) | 2020-03-09 | 2020-03-09 | A passive multi-fluid mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157436.7A CN111467991B (en) | 2020-03-09 | 2020-03-09 | A passive multi-fluid mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111467991A CN111467991A (en) | 2020-07-31 |
| CN111467991B true CN111467991B (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010157436.7A Active CN111467991B (en) | 2020-03-09 | 2020-03-09 | A passive multi-fluid mixer |
Country Status (1)
| Country | Link |
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| CN (1) | CN111467991B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022089323A1 (en) * | 2020-10-26 | 2022-05-05 | 陈久斌 | Swirler |
| CN112808052A (en) * | 2020-12-15 | 2021-05-18 | 北京动力机械研究所 | Same-direction reverse spiral mixing device |
| CN113244801A (en) * | 2021-05-19 | 2021-08-13 | 南京国昌化工科技有限公司 | Multi-fluid mixing equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2569825B1 (en) * | 1984-09-04 | 1988-12-09 | Totalgaz Cie Fse | INTEGRATED PRE-MIXTURE BURNER WITH INTEGRATED PILOT FLAME |
| CN203916479U (en) * | 2014-03-03 | 2014-11-05 | 东南大学 | Be arranged at gas mixer in gas passage and the gas mixer of composition thereof |
| CN107131080B (en) * | 2017-05-27 | 2019-05-10 | 东风商用车有限公司 | Multi-fluid mixer |
| CN107158988B (en) * | 2017-05-27 | 2023-05-16 | 东风商用车有限公司 | Fluid mixer |
| CN108355566B (en) * | 2018-04-18 | 2024-08-27 | 郑州迪邦科技有限公司 | Fluid mixer |
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2020
- 2020-03-09 CN CN202010157436.7A patent/CN111467991B/en active Active
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| CN111467991A (en) | 2020-07-31 |
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