CN110374963B - Structure capable of realizing long-distance self-driven transportation of liquid - Google Patents
Structure capable of realizing long-distance self-driven transportation of liquid Download PDFInfo
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- CN110374963B CN110374963B CN201910591868.6A CN201910591868A CN110374963B CN 110374963 B CN110374963 B CN 110374963B CN 201910591868 A CN201910591868 A CN 201910591868A CN 110374963 B CN110374963 B CN 110374963B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/002—Influencing flow of fluids by influencing the boundary layer
- F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
- F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
- F15D1/0035—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets
- F15D1/004—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets oriented essentially parallel to the direction of flow
Abstract
The invention belongs to the technical field of liquid self-driven transportation, and discloses a structure capable of realizing long-distance self-driven transportation of liquid. The fusiform track series structure is formed by sequentially connecting a plurality of fusiform track structures with transition arcs, and the connection position is a transition area. The invention can realize the long-distance self-driven transportation of the liquid by utilizing the characteristic that the liquid is subjected to the Laplace flooding pressure gradient on the track, and can obviously improve the liquid transportation efficiency.
Description
Technical Field
The invention belongs to the technical field of self-driven liquid transportation, and particularly relates to a structure capable of realizing long-distance self-driven liquid transportation.
Background
The liquid long-distance self-driven transportation is a phenomenon that the liquid can be transported for a long distance spontaneously without external driving, and can be widely applied to the fields of mist collection, microfluidic chips, high-temperature surface cooling and heat dissipation and the like. There are many methods of self-propelled transport of liquids known today. The bionic manufacturing technology is widely applied to the field of preparation of liquid self-driven transportation structures. Such as the simulated cactus palmar structure surface (Advanced Materials,2013,25(41): 5937-. The surface of the imitated spider silk structure (Nature,2010,463(7281):640-643) can realize the self-driven transportation of liquid on the surface of the spindle-shaped structure, but the liquid transportation speed is slow, the transportation distance is short and the preparation is relatively difficult due to the complex structure. The surface (Nature,2016,532(7597):85-89) of the simulated pig cage grass edge area structure can realize self-driven liquid transportation in the laminated groove structure, but has the problems of complex structure, high preparation difficulty, high practical application difficulty and the like. A single wedge-shaped structure surface (Labon aChip,2014,14(9): 1538-. Patent and article CN201710689766.9 (Journal of Materials Chemistry A,2019,7,13567-13576) discloses a structure capable of reducing the transport loss of bubbles under water, and the method can realize long-distance transport of bubbles under water and self-driven transport of liquid in air by connecting a plurality of plane wedge-shaped structures in series. However, the liquid transportation speed of the structure is low, the size parameters of the track can only be changed in a small range, the application range is narrow, the liquid is easy to stagnate at the joint of the two wedges and can not be continuously transported, and the stability of the continuous transportation is poor.
In order to solve the problems, a serial structure of the shuttle-shaped tracks is provided, and adjacent shuttle-shaped tracks are in transition connection through two sections of tangent circular arcs. When the liquid is transported on the track in a self-driven manner, the liquid can be transported along the track spontaneously due to the Laplace pressure gradient, and smoothly passes through the two shuttle-shaped transition circular arc connecting areas, so that the long-distance self-driven transportation of the liquid is realized.
Disclosure of Invention
The invention provides a structure capable of realizing long-distance self-driven transportation of liquid, which is used for improving the liquid transportation efficiency.
The technical scheme of the invention is as follows:
a structure capable of realizing long-distance self-driven transportation of liquid is a serial structure of shuttle-shaped rails, and adjacent shuttle-shaped rails are in transition connection through two sections of tangent circular arcs; the fusiform track series structure is formed by sequentially connecting a plurality of fusiform track structures with transition arcs, and the connection part is a transition area; the arc radius R of the arc transition connection10.5mm-40mm, and the radius of the arc R2Is 0.2mm-30 mm; the dimension of the starting width a of the shuttle track is always smaller than the dimension of the end width b.
The above-mentioned serial structure of the spindle rails with the circular arc transition includes, but is not limited to, aluminum, copper, stainless steel, and titanium.
The invention has the beneficial effects that: the shuttle-shaped track series structure with the arc transition can realize the long-distance self-driven transportation of liquid by utilizing the Laplace pressure gradient applied to the liquid on the track.
Drawings
Fig. 1 is a schematic diagram of a serial structure of the shuttle tracks with the arc transition in embodiment 1.
In the figure: 1 a superhydrophobic substrate; 2 a shuttle-shaped track series structure with arc transition; 3 transition area at the joint of the two shuttle-shaped tracks; a starting width of the shuttle track; b the end width of the shuttle track.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Example 1:
as shown in fig. 1, a structure capable of realizing long-distance self-driven transportation of liquid: the device mainly comprises a super-hydrophobic substrate 1 and a serial fusiform track 2 with arc transition; the serial shuttle-shaped track structure is formed by sequentially connecting a plurality of shuttle-shaped track structures with transition arcs, and the connection part is a transition area 3; a plurality of transition areas are arranged along the length direction of the serial shuttle-shaped track; arc radius R in the present embodiment1Is 3mm, and the radius of the arc R22mm, starting width a of 0.4 mm; the end width b was 2mm and the total track length was 62.3 mm. As shown in figure 1, an aluminum sheet with a serial shuttle-shaped track structure is horizontally placed, water drops are dropped at the initial position of the track, the water drops are spontaneously transported to the tail end position and can smoothly pass through the transition area of the connection position of the two shuttles, and long-distance transportation is realized.
Claims (3)
1. A structure capable of realizing long-distance self-driven transportation of liquid is characterized in that the structure capable of realizing long-distance self-driven transportation of liquid is a serial structure of shuttle-shaped rails, and adjacent shuttle-shaped rails are in transition connection through two sections of tangent circular arcs; the fusiform track series structure is formed by sequentially connecting a plurality of fusiform track structures with transition arcs, and the connection part is a transition area; the arc radius R of the arc transition connection10.5mm-40mm, and the radius of the arc R2Is 0.2mm-30 mm.
2. The structure for realizing long-distance self-driven transportation of liquid according to claim 1, wherein the dimension of the starting width a of the shuttle track is always smaller than the dimension of the tail end width b.
3. The structure capable of realizing long-distance self-driven transportation of liquid according to claim 1 or 2, wherein the series structure of the shuttle rails with the circular arc transition is made of aluminum, copper, stainless steel or titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910591868.6A CN110374963B (en) | 2019-07-01 | 2019-07-01 | Structure capable of realizing long-distance self-driven transportation of liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910591868.6A CN110374963B (en) | 2019-07-01 | 2019-07-01 | Structure capable of realizing long-distance self-driven transportation of liquid |
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| Publication Number | Publication Date |
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| CN110374963A CN110374963A (en) | 2019-10-25 |
| CN110374963B true CN110374963B (en) | 2020-11-03 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301651B (en) * | 2020-02-10 | 2021-08-10 | 大连理工大学 | Continuous self-driven miniature ship |
| CN111606298B (en) * | 2020-04-30 | 2021-02-26 | 深圳技术大学 | Directional passive self-driven film and preparation method thereof |
| CN111606299B (en) * | 2020-05-21 | 2021-01-26 | 深圳技术大学 | Thin film for controlling shape of liquid drop and preparation method and application thereof |
| CN112900546A (en) * | 2021-01-13 | 2021-06-04 | 温州大学 | Bionic self-driven water collection pattern capable of being applied to large-scale surface and preparation method thereof |
| CN112892623A (en) * | 2021-01-13 | 2021-06-04 | 温州大学 | Surface channel structure for droplet directional control and preparation method thereof |
| CN113019484B (en) * | 2021-03-29 | 2022-04-19 | 南京航空航天大学 | Underwater oil transportation functional structure and preparation method and application thereof |
| CN112935571B (en) * | 2021-03-29 | 2022-05-13 | 南京航空航天大学 | Anti-icing functional structure and preparation method and application thereof |
| CN113877234A (en) * | 2021-10-12 | 2022-01-04 | 上海交通大学 | Low-pressure microgravity water vapor enhanced condensation and collection device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4407053C1 (en) * | 1994-03-03 | 1995-04-20 | Krueger Thomas Dr | Method for the generation and/or control of flows |
| CN101307853A (en) * | 2008-06-05 | 2008-11-19 | 江苏大学 | Scaling shape cylinder wake flow drip irrigation douche flow passage |
| WO2014135232A1 (en) * | 2013-03-04 | 2014-09-12 | Tecan Trading Ag | Manipulating the size of liquid droplets in digital microfluidics |
| GB201614150D0 (en) * | 2016-08-18 | 2016-10-05 | Univ Oxford Innovation Ltd | Microfluidic arrangements |
| CN205886912U (en) * | 2016-04-27 | 2017-01-18 | 浙江工业大学 | Liquid drop self -powered dynamic formula micro -fluidic chip based on SERS detects |
| CN206082558U (en) * | 2016-04-27 | 2017-04-12 | 浙江工业大学 | Microfluid self -powered dynamic formula paper base micro -fluidic chip |
| CN205833131U (en) * | 2016-04-27 | 2016-12-28 | 浙江工业大学 | A kind of drop self-driving type microreactor |
| CN107352272A (en) * | 2017-08-14 | 2017-11-17 | 大连理工大学 | A kind of achievable structure for reducing underwater bubble conveyance loss |
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