CN107213811A - Flow mixing device based on Karman vortex street - Google Patents
Flow mixing device based on Karman vortex street Download PDFInfo
- Publication number
- CN107213811A CN107213811A CN201710377331.0A CN201710377331A CN107213811A CN 107213811 A CN107213811 A CN 107213811A CN 201710377331 A CN201710377331 A CN 201710377331A CN 107213811 A CN107213811 A CN 107213811A
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- Prior art keywords
- mixing device
- barrier
- stripe shape
- flow mixing
- flow
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- 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
- 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
- B01F25/102—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components wherein the vortex is created by two or more jets introduced tangentially in separate mixing chambers or consecutively in the same mixing chamber
-
- 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
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/913—Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention provides a kind of flow mixing device based on Karman vortex street, solve current fluid mixing by increasing the natural mixed flow of pipeline or place porous media and carry out mixed flow, otherwise pipeline is longer and mixed flow effect is also undesirable, or the big mixed flow efficiency of resistance it is low the problem of.The flow mixing device of the present invention, includes the stripe shape lower resistance fluid barrier of arranged in rows, the size shape all same of each stripe shape barrier, the spacing positioned at the adjacent stripe shape barrier of same row is identical, is arranged between the position interlaced arrangement or mistake of adjacent two rows barrier.The flow mixing device of the present invention, can promote fluid to mix, mixed flow efficiency high, mixed flow effect is good from different directions, and the flow mixing device used makes and is simply easily worked, and operation maintenance is convenient.
Description
Technical field
It is that one kind utilizes toll bar specifically the present invention relates to thermoelectricity, metallurgy, petrochemical industry, chemical industry, electronics, food are multi-field
Vortex street principle makes the well mixed flow mixing device of different air-flows.
Background technology
Karman vortex can be all produced when fluid winding flow chimney stalk, skyscraper, electric wire, the tube bank of oil-piping and heat exchanger
Street.When there is vortex street, fluid can produce the alternation horizontal force of a cycle to object.If the frequency of power and object
Intrinsic frequency is close, and will cause resonance, or even make physical damage.But also have successful application, example using Karman vortex street
Such as using the Karman vortex street cycle, alternately change property, Karman vortex street flowmeter is made, by the shedding frequence for measuring vortex
To determine the speed or flow of fluid.
Have in Practical Project and two or more different fluids are much mixed into a kind of engineer applied of stream, such as：Fig. 1 institutes
The dry and wet air mixing of the cooling tower shown；The inlet end of packing performance simulation experimental rig shown in Fig. 2, as shown in Figure 3
The different fluid of pipeline conflux.These situations are required for confluxing different fluid into a pipeline, when it is desirable that two kinds
When fluid or multiple fluid reach blending uniform state, it is often necessary to which pipeline is very long, if can be set up in multiple fluid mixing section
Flow mixing device, can not only make fluid well mixed outer, while also saving the distance required for blending.Existing dry-and wet-type fog dispersal tower
Blender is generally porous media formula, there are problems that resistance is big, mixed flow effect.Therefore it provides a kind of have fluid resistance
The good flow mixing device of small, mixed flow effect, there is very big Practical significance in engineering.
The content of the invention
For needing to carry out mixed flow by increasing the natural mixed flow of pipeline or placing porous media at present, otherwise pipeline is longer and mixed
Flow effect also undesirable, or the big mixed flow efficiency of resistance it is low the problem of, the present invention proposes a kind of to make difference using Karman vortex street principle
The well mixed flow mixing device of air-flow.
The flow mixing device based on Karman vortex street that the present invention is provided, includes the stripe shape lower resistance fluid barrier of arranged in rows,
The size shape all same in the section of each stripe shape barrier, the spacing positioned at the adjacent stripe shape barrier of same row is identical, adjacent
The position interlaced arrangement of two row's barriers.
The position of described adjacent two rows barrier can also be arrangement between mistake.
The section of described stripe shape barrier is circle, ellipse, rhombus, rectangle or triangle.
Stripe shape barrier at least two rows in described vortex street flow mixing device.
Advantages of the present invention is with good effect：Using the flow mixing device of the present invention, pass through row's stripe shape in different fluid
It can produce whirlpool during lower resistance barrier, promote fluid mixing, after at least two row's lower resistance barriers, from different directions
Promote fluid mixedly more abundant.The resistance produced using the vortex street flow mixing device of the present invention to fluid is small, vortex street interaction
Mixed flow efficiency high, mixed flow effect is good.The vortex street flow mixing device that the present invention is realized makes and is simply easily worked, and operation maintenance is convenient, no
Need to provide extra power set, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is existing dry-and wet-type fog dispersal cooling tower Zhong Gan areas and the schematic diagram of moisture air-flow；
Fig. 2 be packing performance simulation experimental rig inlet end in fluid mixing schematic diagram；
Fig. 3 is the schematic diagram of different fluid mixed flow；
Fig. 4 is the arrangement schematic diagram for the stripe shape lower resistance fluid barrier that the present invention realizes Karman vortex street；
Fig. 5 is the schematic diagram of the multiple section for the stripe shape lower resistance fluid barrier that the present invention realizes Karman vortex street.
Embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
The invention provides a kind of flow mixing device based on Karman vortex street, it is possible to achieve fluid is uniformly sufficiently mixed.Described
Flow mixing device includes the stripe shape lower resistance fluid barrier of arranged in rows, the size shape all same in the section of each stripe shape barrier,
Spacing positioned at the adjacent stripe shape barrier of same row is identical, arrangement or staggeredly cloth between the position of adjacent two rows barrier is wrong
Put.
It is possible to further set, often row's stripe shape barrier is parallel to each other and spacing sets identical.
Two kinds of preferred arrangement forms are illustrated in figure 4, adjacent two rows stripe shape barrier is parallel to each other and cloth between mistake in (a)
Put, form structure between parallel many misarrangements；(b) adjacent two rows stripe shape barrier is parallel to each other in and two row's stripe shape barriers interlock
Arrangement, forms parallel multi-row staggered structure, it is preferable that be mutually perpendicular in the stripe shape barrier positioned at adjacent two row.Fig. 4's
(a) and in (b), upper figure is top view, and figure below is front view.
Karman vortex street causes fluid to be uniformly sufficiently mixed.The vortex street flow mixing device of the present invention at least includes two row's stripe shapes
Barrier, the fluid of various concentrations is the whirlpool to be formed forming Karman vortex street, vortex street after stripe shape lower resistance fluid barrier
Whirlpool, by two row's barriers, can produce the whirlpool in different rotary direction, promote to blend from both direction so that blending of falling liquid film is more
Uniformly.
Described stripe shape lower resistance fluid barrier, cross sectional shape is set as needed, is, for example, circular, oval, water chestnut
Shape, rectangle or triangle；As shown in figure 4, the stripe shape lower resistance fluid barrier of several cross sectional shapes for example.
In the present invention, if a length of L in section footpath of stripe shape barrier, then the interval S of adjacent stripe shape barrier in often row is set
It is set to 0.8~1.2 times of L.At this point it is possible to so that the number of stripe shape barrier is reasonable, and the effect of fluid mixing is more preferable.
The flow mixing device based on Karman vortex street that the present invention is realized, can make stripe shape obstacle by producing shaft in batches
Thing, constitutes flow mixing device, makes simple, is easily worked, and safeguards also very convenient, and need not provide extra power set, saves
Can environmental protection.
The stripe shape lower resistance fluid barrier provided by the present invention for realizing Karman vortex street is applied in dry-and wet-type cooling tower
In, to realize the hot-air in dry area and being well mixed between wet area's damp-heat air.Dry-and wet-type cooling tower is two heat transfer zones, does area
With wet area, Qu Shang is done, Feng Conggan areas enter in cooling tower by heat exchange, after the humid air blending in wet area, discharged by blower fan.
Stripe shape barrier is arranged in the exit region in dry area and wet area's air.Using the flow mixing device of the present invention, mixed flow effect is good, improves existing
Have and mist phenomenon is gone out using the part occurred during porous media due to the non-uniform temperature that fan outlet fluid is mixed.
The vortex street flow mixing device that the present invention is realized is applied in the mixed flow of pipeline fluid, and vortex street mixed flow can be arranged in the duct
Device, can be set in vortex street flow mixing device comprising three layers of stripe shape barrier.The fluid of various concentrations produces card after vortex street flow mixing device
Door vortex street effect, carries out the mixing of multiple directions, and mixing efficiency is high, simultaneously, it is not required that set very long pipeline mixed to realize
Stream, saves piping cost and arrangement space, expands and use scope.It is many in thermoelectricity, metallurgy, petrochemical industry, chemical industry, electronics, food etc.
In the fluid mixing that field is related to, the flow mixing device that the present invention is improved can be used to improve mixed flow effect.
Claims (7)
1. a kind of flow mixing device based on Karman vortex street, it is characterised in that the stripe shape barrier including arranged in rows, each stripe shape obstacle
The size shape all same in the section of thing, the spacing positioned at the adjacent stripe shape barrier of same row is identical, adjacent two rows barrier
Position be interlaced arrangement.
2. flow mixing device according to claim 1, it is characterised in that described adjacent two rows barrier in interlaced arrangement,
Stripe shape barrier positioned at adjacent two row is mutually perpendicular to.
3. flow mixing device according to claim 1, it is characterised in that the position of described adjacent two rows barrier can also be
Arranged between mistake.
4. the flow mixing device according to claim 1 or 3, it is characterised in that described often row stripe shape barrier it is parallel to each other and
Spacing sets identical.
5. the flow mixing device according to claim 1 or 3, it is characterised in that described vortex street flow mixing device at least includes two row's bars
Type barrier.
6. the flow mixing device according to claim 1 or 3, it is characterised in that the section of described stripe shape barrier is circular, ellipse
Circle, rhombus, rectangle or triangle.
7. the flow mixing device according to claim 1 or 3, it is characterised in that in described vortex street flow mixing device, adjacent two rows stripe shape
The spacing of barrier is set to 0.8~1.2 times of the section path length of stripe shape barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377331.0A CN107213811A (en) | 2017-05-25 | 2017-05-25 | Flow mixing device based on Karman vortex street |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377331.0A CN107213811A (en) | 2017-05-25 | 2017-05-25 | Flow mixing device based on Karman vortex street |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107213811A true CN107213811A (en) | 2017-09-29 |
Family
ID=59944374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710377331.0A Pending CN107213811A (en) | 2017-05-25 | 2017-05-25 | Flow mixing device based on Karman vortex street |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107213811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278758A (en) * | 2017-12-22 | 2018-07-13 | 西安科技大学 | Bicylindrical imitates dynamic natural wind generator |
| CN108821509A (en) * | 2018-07-04 | 2018-11-16 | 沈阳东源环境科技有限公司 | A kind of Minitype integration type sewage disposal device |
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| CN201658928U (en) * | 2010-01-05 | 2010-12-01 | 浙江菲达环保科技股份有限公司 | Device for promoting aggregation of grains |
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| CN204601997U (en) * | 2015-04-02 | 2015-09-02 | 浙江菲达脱硫工程有限公司 | A kind of boiler smoke and ammonia mixing arrangement |
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| CN104906973A (en) * | 2015-05-31 | 2015-09-16 | 青岛海德威科技有限公司 | Vortex street mixer |
| CN204684963U (en) * | 2015-05-31 | 2015-10-07 | 青岛海德威科技有限公司 | A kind of vortex street blender |
| CN205973931U (en) * | 2016-07-09 | 2017-02-22 | 净化控股集团股份有限公司 | Vortex street reactor |
-
2017
- 2017-05-25 CN CN201710377331.0A patent/CN107213811A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527903A (en) * | 1979-03-26 | 1985-07-09 | Balcke-Durr Aktiengsellschaft | Apparatus for uniformizing the parameters of a flow and/or for mixing together at least two individual streams which discharge into a main flow |
| CN101780361A (en) * | 2010-01-05 | 2010-07-21 | 浙江菲达环保科技股份有限公司 | Method and device for prompting aggregation of particles |
| CN201658928U (en) * | 2010-01-05 | 2010-12-01 | 浙江菲达环保科技股份有限公司 | Device for promoting aggregation of grains |
| CN201658927U (en) * | 2010-01-05 | 2010-12-01 | 浙江菲达环保科技股份有限公司 | Device for enhancing particle aggregation |
| CN201658926U (en) * | 2010-01-05 | 2010-12-01 | 浙江菲达环保科技股份有限公司 | Device for promoting particle aggregation |
| CN204638027U (en) * | 2015-03-13 | 2015-09-16 | 佛山市德嘉电力环保科技开发有限公司 | A kind of novel pipeline blender |
| CN204601997U (en) * | 2015-04-02 | 2015-09-02 | 浙江菲达脱硫工程有限公司 | A kind of boiler smoke and ammonia mixing arrangement |
| CN104906973A (en) * | 2015-05-31 | 2015-09-16 | 青岛海德威科技有限公司 | Vortex street mixer |
| CN204684963U (en) * | 2015-05-31 | 2015-10-07 | 青岛海德威科技有限公司 | A kind of vortex street blender |
| CN205973931U (en) * | 2016-07-09 | 2017-02-22 | 净化控股集团股份有限公司 | Vortex street reactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278758A (en) * | 2017-12-22 | 2018-07-13 | 西安科技大学 | Bicylindrical imitates dynamic natural wind generator |
| CN108821509A (en) * | 2018-07-04 | 2018-11-16 | 沈阳东源环境科技有限公司 | A kind of Minitype integration type sewage disposal device |
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Application publication date: 20170929 |