CN109707004B - Bionic structure with mist collecting capability - Google Patents
Bionic structure with mist collecting capability Download PDFInfo
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- CN109707004B CN109707004B CN201910049700.2A CN201910049700A CN109707004B CN 109707004 B CN109707004 B CN 109707004B CN 201910049700 A CN201910049700 A CN 201910049700A CN 109707004 B CN109707004 B CN 109707004B
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Abstract
A bionic structure with mist collecting capability belongs to the technical field of mist collecting and aims to solve the problem of lack of fresh water resources in the prior art. The bionic structure with mist collecting capability is a semi-conical structure, a plurality of axially divergent grooves are distributed on the outer surface of the semi-conical structure from the tip to the root, and a plurality of pits are distributed on the bottom of each groove from the tip to the root. The semi-conical structure appearance of the bionic structure with mist collecting capability forms a shape gradient, so that water drops condensed on the surface of the bionic structure can move from tip to root under the action of Laplacian pressure. The divergent groove structure forms a roughness gradient on the surface of the semi-conical structure, so that the surface energy of the root is larger than that of the tip, and water drops are promoted to move from the tip to the root. In addition, the pits inside the grooves form a "pinning effect" that promotes the directional collection of water droplets.
Description
Technical Field
The invention belongs to the technical field of fog collection, and particularly relates to a bionic structure with efficient fog collection capability.
Background
Mist is widely distributed worldwide, and even in arid areas, mist may be present. Accordingly, scientists have shown great interest in collecting water from mist.
In recent years, the scientific community has made great progress in the study of natural organisms to condense moisture from mist using their own body structures. For example, scientists have found that cactus growing in a desert can utilize its structure on the thorns to achieve directional collection of mist, thereby obtaining additional moisture supply. The prior art can not collect the mist in nature efficiently.
Disclosure of Invention
The invention aims to provide a bionic structure with mist collection capability, solve the problem of lack of fresh water resources in the prior art, accelerate the condensation speed of mist through the bionic structure, and realize directional transportation of condensed water drops.
In order to achieve the above purpose, the bionic structure with mist collecting capability is a semicircle cone structure, wherein a plurality of grooves which are divergent along the axial direction are distributed on the outer surface of the semicircle cone structure from the tip to the root, and a plurality of pits are distributed on the bottom of each groove from the tip to the root.
The pits are linearly arranged in the grooves at equal intervals along a straight line.
The cross section of the semi-conical structure is in a crescent shape formed by a semi-conical surface and an intrados, and grooves and pit structures are distributed on the conical surface and the intrados.
The angle of the tip of the semicircle cone structure is 12-24 degrees, the radius of the root conical surface is 5-8mm, and the radius of the root intrados is 15-18mm.
The width of the grooves is 30-50 mu m, and the width of the protrusions between two adjacent grooves is 30-50 mu m.
The depth of the groove ranges from 40 μm to 50 μm.
The distance between two adjacent pits in each groove is 180-200 μm.
The pit radius is 30-40 μm.
The pit depth value range is 55-65 mu m.
The beneficial effects of the invention are as follows: the invention relates to a bionic semi-conical structure with mist collecting capability. The mist is condensed into water drops at the tip end of the bionic semicircle cone structure, and the shape gradient is formed due to the appearance of the semicircle cone structure, so that the water drops condensed on the surface of the mist can move from the tip end of the bionic semicircle cone structure to the root under the action of Laplacian pressure. The divergent groove structure forms a roughness gradient on the surface of the semi-conical structure, so that the surface energy of the root is larger than that of the tip, and water drops are promoted to move from the tip to the root. In addition, the pits inside the grooves form a 'pinning effect', which promotes the directional collection of water droplets.
Drawings
FIG. 1 is a schematic diagram of a biomimetic structure with mist collection capability of the present invention;
FIG. 2 is a partial schematic view of a biomimetic structure with mist collection capability of the present invention;
FIG. 3 is a cross-sectional view of a biomimetic structure with mist collection capability of the present invention;
FIG. 4 is a schematic diagram of a mist collection process of a biomimetic structure with mist collection capability according to the present invention;
wherein: 1. conical surface, 2, intrados, 3, pointed end, 4, root, 5, groove, 6, pit, 7, water drop.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-4, the bionic structure with mist collecting capability of the invention is a semicircle cone structure, the outer surface of the semicircle cone structure is distributed with a plurality of grooves 5 which are divergent along the axial direction from the tip 3 to the root 4, and the bottom of each groove 5 is distributed with a plurality of pits 6 from the tip 3 to the root 4.
A plurality of the pits 6 are linearly arranged at equal intervals along a straight line in the groove 5.
The cross section of the semi-conical structure is crescent formed by a semi-conical surface 1 and an intrados surface 2, and grooves 5 and pit 6 structures are distributed on the conical surface 1 and the intrados surface 2.
The angle of the tip 3 of the semicircle cone structure is 12-24 DEG, and the radius R of the conical surface 1 of the root 4 Cone with conical surface The value range is 5-8mm, and the radius R of the intrados surface 2 of the root 4 Arc The value range is 15-18mm.
The width c of each groove 5 is 30-50 mu m, and the width a of each protrusion between two adjacent grooves 5 is 30-50 mu m.
The depth of the groove 5 is 40-50 mu m.
The distance b between two adjacent pits 6 in each groove 5 is 180-200 mu m.
The radius r of the pit 6 is 30-40 mu m.
The depth value range of the pit 6 is 55-65 mu m.
The bionic structure with mist collecting capability is vertically or horizontally placed into mist, the mist is firstly condensed at the tip of a semi-cone to form water drops 7, and the water drops 7 move from the tip 3 to the root 4 under the action of Laplacian pressure due to the shape gradient of the appearance of the semi-cone structure, and the tiny liquid drops condensed on the surface of the semi-cone structure are continuously combined in the moving process, so that the mist is continuously grown. While the diverging grooves 5 structure creates a roughness gradient such that the surface energy of the root 4 is greater than the surface energy of the tip 3, thereby facilitating the movement of the water droplets 7 from the tip 3 to the root 4. In addition, the pits inside the grooves create a "pinning effect" on the droplets moving directionally on their surface, allowing the structured surface to achieve directional collection of the droplets.
Claims (7)
1. The bionic structure with the mist collecting capability is characterized in that the bionic structure is of a semi-conical structure, a plurality of grooves (5) which are divergent along the axial direction are distributed on the outer surface of the semi-conical structure from a tip (3) to a root (4), and a plurality of pits (6) are distributed on the bottom of each groove (5) from the tip (3) to the root (4);
the pits (6) are linearly arranged in the grooves (5) at equal intervals along a straight line;
the cross section of the semi-conical structure is in a crescent shape formed by a conical surface (1) and an inner cambered surface (2), and grooves (5) and pits (6) are distributed on the conical surface (1) and the inner cambered surface (2).
2. The bionic structure with mist collecting capability according to claim 1, wherein the angle of the tip (3) of the semi-conical structure is 12-24 °, the radius of the conical surface (1) of the root (4) is 5-8mm, and the radius of the intrados (2) of the root (4) is 15-18mm.
3. Bionic structure with mist collecting capability according to claim 1, characterized in that the width of the grooves (5) is in the range of 30-50 μm and the width of the protrusions between two adjacent grooves (5) is in the range of 30-50 μm.
4. A biomimetic structure with mist collection capability according to claim 1, characterized in that the depth of the grooves (5) is in the range of 40-50 μm.
5. A biomimetic structure with mist collection capability according to claim 1, wherein the distance between two adjacent pits (6) in each groove (5) is in the range of 180-200 μm.
6. A biomimetic structure with mist collection capability according to claim 1, characterized in that the radius of the pit (6) is in the range of 30-40 μm.
7. The biomimetic structure with mist collection capability according to claim 1, wherein the pit (6) depth takes a value in the range of 55-65 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049700.2A CN109707004B (en) | 2019-01-18 | 2019-01-18 | Bionic structure with mist collecting capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049700.2A CN109707004B (en) | 2019-01-18 | 2019-01-18 | Bionic structure with mist collecting capability |
Publications (2)
| Publication Number | Publication Date |
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| CN109707004A CN109707004A (en) | 2019-05-03 |
| CN109707004B true CN109707004B (en) | 2023-05-12 |
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| CN201910049700.2A Active CN109707004B (en) | 2019-01-18 | 2019-01-18 | Bionic structure with mist collecting capability |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752765B (en) * | 2019-10-29 | 2020-07-28 | 广东工业大学 | Friction nanometer generator for collecting electric energy generated by water mist and processing method thereof |
| CN112144608B (en) * | 2020-08-12 | 2021-11-23 | 江苏大学 | Bionic blade integrating self-transportation and permeation of water absorption |
| CN112504014B (en) * | 2020-11-09 | 2022-09-16 | 昆明理工大学 | Magnetic control micro-needle vertebral array mist-catching and water-collecting helmet and mist-catching and water-collecting method |
| CN115446944B (en) * | 2022-10-13 | 2023-08-08 | 南京林业大学 | Method for preparing gradient wettability conical wood needle and radiation device thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2374818B (en) * | 2001-04-23 | 2005-01-12 | Secr Defence | Surface for promoting droplet formation |
| EP1629157A1 (en) * | 2003-05-26 | 2006-03-01 | Logos-Innovationen GMBH | Device for the extraction of water from atmospheric air |
| RU2398937C1 (en) * | 2009-01-21 | 2010-09-10 | Анатолий Павлович Ефимочкин | Water collector |
| CN102677738B (en) * | 2011-03-15 | 2014-01-08 | 中国科学院化学研究所 | Polymer needle cluster array with nature-imitated opuntia microdasys plant structure and preparation method of bionic catchment polymer needle cluster array |
| CN202359612U (en) * | 2011-12-05 | 2012-08-01 | 大连海洋大学 | Air water intaking device |
| CN103205994A (en) * | 2013-03-13 | 2013-07-17 | 武汉大学 | Moisture capture device |
| CN205475439U (en) * | 2016-01-26 | 2016-08-17 | 华南理工大学 | Bionical fog water collector |
| CN206418543U (en) * | 2016-08-31 | 2017-08-18 | 华南理工大学 | A kind of efficient multistage taper copper wire for collecting fog |
| CN107906998B (en) * | 2017-10-27 | 2020-05-19 | 东南大学 | High-performance condensation heat exchange tube based on bionic structure |
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