阅读说明：本技术 一种磁控微针椎阵列捕雾集水头盔及捕雾集水方法 (Magnetic control micro-needle vertebral array mist-catching and water-collecting helmet and mist-catching and water-collecting method ) 是由 焦凤 李倩 何永清 于 2020-11-09 设计创作，主要内容包括：本发明涉及一种磁控微针椎阵列捕雾集水头盔及捕雾集水方法,属于仿生捕雾系统技术领域。本发明捕雾集水头盔包括集液盒和头盔主体,集液盒设置在头盔主体后端底部,头盔主体包括频率发生器、头盔壳体、环形线圈和电源构件,频率发生器设置在头盔壳体外侧壁,环形线圈设置在头盔壳体内侧壁,频率发生器和环形线圈串联后与电源构件电连接形成负载电路,头盔壳体外侧壁设置有竖直向上的微米磁性针椎阵列,微米磁性针椎阵列的顶部设置有亲水外层,微米磁性针椎阵列的底端设置有疏水外层,头盔壳体的底部倾斜设置有环形集液槽,环形集液槽的低端与集液盒的顶部连通。本发明利用外部磁场驱使微针椎阵列发生变形以实现液滴的吸附、脱落、富集。(The invention relates to a magnetic control micro-needle vertebral array mist-catching and water-collecting helmet and a mist-catching and water-collecting method, and belongs to the technical field of bionic mist-catching systems. The fog-catching and water-collecting helmet comprises a liquid collecting box and a helmet main body, wherein the liquid collecting box is arranged at the bottom of the rear end of the helmet main body, the helmet main body comprises a frequency generator, a helmet shell, an annular coil and a power supply component, the frequency generator is arranged on the outer side wall of the helmet shell, the annular coil is arranged on the inner side wall of the helmet shell, the frequency generator and the annular coil are connected in series and then are electrically connected with the power supply component to form a load circuit, a vertically upward micron magnetic needle array is arranged on the outer side wall of the helmet shell, a hydrophilic outer layer is arranged at the top of the micron magnetic needle array, a hydrophobic outer layer is arranged at the bottom end of the micron magnetic needle array, an annular liquid collecting tank is obliquely arranged at the bottom of the helmet shell. The invention utilizes an external magnetic field to drive the micro-needle vertebral array to deform so as to realize the adsorption, the falling and the enrichment of liquid drops.)

1. A magnetic control micro-needle vertebral array mist-catching and water-collecting helmet is characterized in that: the liquid collecting box is arranged at the bottom of the rear end of the helmet body (2), the helmet body (2) comprises a frequency generator (5), a helmet shell (6), a plurality of annular coils (9) and a power supply component, the frequency generator (5) is arranged on the outer side wall of the helmet shell (6), the annular coils (9) are arranged on the inner side wall of the helmet shell (6), the annular coils (9) are connected in series and then connected in series with the frequency generator (5), and then the annular coils are electrically connected with the power supply component to form a load circuit; the helmet shell comprises a helmet shell body (6), wherein a vertical upward micro magnetic needle cone array is arranged on the outer side wall of the helmet shell body (6), the top of the micro magnetic needle cone array is a hydrophilic outer layer, the helmet shell wall at the bottom end of the micro magnetic needle cone array is a hydrophobic layer, an annular liquid collecting tank (7) is obliquely arranged at the bottom of the helmet shell body (6), and the lower end of the annular liquid collecting tank (7) is communicated with a liquid inlet of a liquid collecting box (1).

2. The magnetic-control microneedle cone array mist-catching and water-collecting helmet according to claim 1, characterized in that: the micrometer magnetic needle vertebra array comprises a plurality of micrometer magnetic needle vertebrae (8), the micrometer magnetic needle vertebrae (8) are in a conical structure, and the top of the micrometer magnetic needle vertebrae (8) is a conical structure vertex.

3. The magnetic-control microneedle cone array mist-catching and water-collecting helmet according to claim 2, characterized in that: the micron magnetic needle cone (8) comprises an organic shell and a magnetic nano particle filling body, and the magnetic nano particle filling body is filled in the organic shell.

4. The magnetically controlled microneedle array mist-catching and water-collecting helmet according to claim 2 or 3, wherein: the height of the micrometer magnetic needle cone (8) is 20-30 μm.

5. The magnetic-control microneedle cone array mist-catching and water-collecting helmet according to claim 1, characterized in that: the power supply component comprises a battery box (3) and a switch (4), the battery box (3) and the switch (4) are arranged on the outer side wall of the helmet shell (6), the two ends of the annular coil (9) are respectively a positive end and a negative end, the positive end of the battery box (3) is electrically connected with the positive end of the switch (4), the frequency generator (5) and the annular coil (9) sequentially through an electric lead, and the negative end of the annular coil (9) is electrically connected with the negative end of the battery box (3) through the electric lead.

6. The magnetic-control microneedle cone array mist-catching and water-collecting helmet according to claim 5, characterized in that: a rechargeable battery is arranged in the battery box (3).

7. The magnetically controlled mist-catching and water-collecting helmet with the microneedle array according to claim 3, wherein: the organic shell is polydimethylsiloxane, hydrophilic functional groups are introduced into the surface layer of the polydimethylsiloxane to form a hydrophilic outer layer, and the hydrophilic functional groups are OH, CHO, COOH and NH₂Or SO₃H, the helmet shell (6) is a polymer shell, hydrophobic functional groups are introduced into the surface layer of the helmet shell (6) to form a hydrophobic layer, and the hydrophobic functional groups are hydrocarbon groups or ester groups.

8. The magnetic-control microneedle cone array mist-catching and water-collecting helmet according to claim 1, characterized in that: the bottom wall of the rear end of the helmet main body (2) is provided with a horizontal clamping groove, the side wall of the liquid collecting box (1) is provided with a horizontal clamping buckle, and the horizontal clamping buckle is inserted into the horizontal clamping groove.

9. The magnetic-control microneedle cone array mist-catching and water-collecting helmet according to claim 1, characterized in that: a heat insulation layer is arranged in the helmet shell (6).

10. The mist catching and water collecting method based on the magnetic control microneedle array mist catching and water collecting helmet as claimed in any one of claims 1 to 9, characterized by comprising the following specific steps:

(1) setting control parameters of the frequency generator to enable the frequency generator to be connected with a load circuit according to a set frequency;

(2) when the load circuit is not switched on, the micron magnetic needle cone array is completely upright, fog drops are automatically attached to the hydrophilic outer layer at the top of the micron magnetic needle cone array in dense fog, the fog drops form micro liquid drops, and the micro liquid drops are fused into liquid drops; the frequency generator controls the load circuit to be switched on, the energized annular coil generates a circular magnetic field in the surrounding space of the micron magnetic needle vertebra array, the tip end of the magnetic needle vertebra array is continuously and directionally deformed by downward attraction to form a wind field under the drive of the circular magnetic field, Laplace pressure difference is formed at the top end and the bottom end of the magnetic needle vertebra array, and liquid drops at the top end of the magnetic needle vertebra array are accelerated to directionally move and are conveyed to a hydrophobic part at the bottom end of the magnetic needle vertebra array to realize liquid drop enrichment;

(3) the liquid drops enriched at the bottom end of the magnetic needle cone array are accumulated and grown to form liquid flows which are accumulated in an annular liquid collecting tank of the helmet shell, and the liquid flows in the annular liquid collecting tank are accumulated in a liquid collecting box under the action of gravity so as to realize mist capturing and water collecting of the helmet.

Technical Field

The invention relates to a magnetic control micro-needle vertebral array mist-catching and water-collecting helmet and a mist-catching and water-collecting method, and belongs to the technical field of bionic mist-catching systems.

Background

Fog is ubiquitous in nature and is therefore considered to be an alternative and sustainable source of fresh water. However, the collection of fresh water from static mist using existing bio-biomimetic mist capture systems remains a challenge.

Therefore, a low-cost, safe and reliable bionics mist catching system is urgently needed to realize mist catching and water collecting.

Disclosure of Invention

The invention provides a magnetic control micro-needle cone array fog-catching and water-collecting helmet and a fog-catching and water-collecting method aiming at the problem of difficult fresh water supply in individual combat.

The technical scheme of the invention is as follows: based on the hydrophilic property at the top and the hydrophobic property at the bottom of the surface of the micron magnetic needle cone array, micro fog drops are continuously enriched at the hydrophilic end, the micro needle cone array is driven to deform by an external magnetic field, and the liquid drops are conveyed to the hydrophobic layer at the bottom for collection, so that the adsorption, the falling and the enrichment of the liquid drops are realized.

The technical scheme adopted by the invention for solving the technical problem is as follows:

a magnetic control micro-needle vertebra array mist-catching and water-collecting helmet comprises a liquid collecting box 1 and a helmet main body 2, wherein the liquid collecting box 1 is arranged at the bottom of the rear end of the helmet main body 2, the helmet main body 2 comprises a frequency generator 5, a helmet shell 6, a plurality of annular coils 9 and a power supply component, the frequency generator 5 is arranged on the outer side wall of the helmet shell 6, the annular coils 9 are arranged on the inner side wall of the helmet shell 6, the plurality of annular coils 9 are connected in series with the frequency generator 5 after being connected in series, and then are electrically connected with the power supply component to form a load circuit; the outer side wall of the helmet shell 6 is provided with a vertically upward micron magnetic needle cone array, the top of the micron magnetic needle cone array is a hydrophilic outer layer, the helmet shell wall at the bottom end of the micron magnetic needle cone array is a hydrophobic layer, the bottom of the helmet shell 6 is obliquely provided with an annular liquid collecting tank 7, and the lower end of the annular liquid collecting tank 7 is communicated with the top of the liquid collecting box 1;

the micrometer magnetic needle cone array comprises a plurality of micrometer magnetic needle cones 8, each micrometer magnetic needle cone 8 is of a conical structure, and the top of each micrometer magnetic needle cone 8 is a conical structure vertex;

the conical structure of the micron magnetic needle cone can push liquid drops to reach the hydrophobic tail part and then fall off automatically, enrichment of the liquid drops is realized, the micron magnetic needle cone array can realize spontaneous and continuous collection of fog water, and the deflection of the micron magnetic needle cone is increased along with the increase of the magnetic field intensity due to the determination of the magnetic field direction;

further, the micron magnetic needle cone 8 comprises an organic shell and a magnetic nanoparticle filler, wherein the magnetic nanoparticle filler is filled in the organic shell; preferably, the magnetic nanoparticle filler is Fe₃O₄Magnetic nanoparticles;

furthermore, the height of the micron magnetic needle cone 8 is 20-30 μm;

the power supply component comprises a battery box 3 and a switch 4, the battery box 3 and the switch 4 are both arranged on the outer side wall of the helmet shell 6, two ends of the annular coil 9 are respectively a positive end and a negative end, the positive end of the battery box 3 is electrically connected with the switch 4, the frequency generator 5 and the positive end of the annular coil 9 sequentially through an electric lead, and the negative end of the annular coil 9 is electrically connected with the negative end of the battery box 3 through an electric lead;

the switch 4 can play the roles of switching on and protecting a load circuit;

further, a rechargeable battery is arranged in the battery box 3; preferably, the rechargeable battery is a rechargeable nickel-hydrogen battery, and can be continuously used for 20 hours after being fully charged;

the organic matter shell is polydimethylsiloxane, a hydrophilic functional group is introduced into the surface layer of the polydimethylsiloxane to form a hydrophilic outer layer, and the hydrophilic functional group is OH, CHO, COOH or NH₂Or SO₃H, the helmet shell 6 is a polymer shell, a hydrophobic functional group is introduced into the surface layer of the helmet shell 6 to form a hydrophobic layer, and the hydrophobic functional group is a hydrocarbon group or an ester group;

further, a horizontal clamping groove is formed in the bottom wall of the rear end of the helmet main body 2, a horizontal buckle is arranged on the side wall of the liquid collecting box 1, and the horizontal buckle is inserted into the horizontal clamping groove to achieve dismounting of the liquid collecting box 1;

a heat insulation layer is arranged in the helmet shell 6, and the heat insulation layer can be a spraying heat insulation layer or a heat insulation embedded layer arranged in the middle of the helmet shell;

when excitation signals are applied to two ends of the annular coil 9 and currents pass through the annular coil, a circular magnetic field is generated in the space around the annular coil 9, and the micrometer magnetic needle cone array is attracted downwards;

the frequency generator 5 is used as a signal source or an excitation source of a load circuit, and the periodical bending and continuous vibration of the micrometer magnetic needle cone array are realized by setting relevant parameters of the frequency generator, so that liquid drops are conveyed from the tip of the micrometer magnetic needle cone array to the bottom of the micrometer magnetic needle cone array.

The mist catching and water collecting method of the magnetic control micro-needle vertebral array mist catching and water collecting helmet comprises the following specific steps:

(1) setting control parameters of the frequency generator to enable the frequency generator to be connected with a load circuit according to a set frequency;

(2) when the load circuit is not switched on, the micron magnetic needle cone array is completely upright, fog drops are automatically attached to the hydrophilic outer layer at the top of the micron magnetic needle cone array in dense fog, the fog drops form micro liquid drops, and the micro liquid drops are fused into liquid drops; the frequency generator controls the load circuit to be switched on, the energized annular coil generates a circular magnetic field in the surrounding space of the micron magnetic needle vertebra array, the tip end of the magnetic needle vertebra array is continuously and directionally deformed by downward attraction to form a wind field under the drive of the circular magnetic field, Laplace pressure difference is formed at the top end and the bottom end of the magnetic needle vertebra array, and liquid drops at the top end of the magnetic needle vertebra array are accelerated to directionally move and are conveyed to a hydrophobic part at the bottom end of the magnetic needle vertebra array to realize liquid drop enrichment;

(3) the liquid drops enriched at the bottom end of the magnetic needle cone array are accumulated and grown to form liquid flows which are accumulated in an annular liquid collecting tank of the helmet shell, and the liquid flows in the annular liquid collecting tank are accumulated in a liquid collecting box under the action of gravity so as to realize mist capturing and water collecting of the helmet.

The invention has the beneficial effects that:

(1) the magnetic control micro-needle vertebral array mist catching and water collecting helmet quickly and efficiently directionally collects mist from mist and humid air, and realizes high-efficiency and high-yield continuous mist drop collection;

(2) the magnetic control micro-needle vertebra array mist-catching water-collecting helmet has the advantages that the micro-needle vertebra is changed by remotely, nondestructively and real-timely controlling the magnetic field, and has good application prospect in the field of mist-catching water-taking;

(3) the magnetic control micro-needle-vertebra array mist capturing and collecting helmet realizes magnetic induction mist collection under the windless condition, and has wide application prospect particularly in low-flow-velocity mist areas and windless and foggy areas;

(4) the magnetic control micro-needle vertebra array mist capturing and water collecting helmet disclosed by the invention has the advantages that the collection of mist drops is directly finished by the functional surface, condensation is not generated, external energy input is not needed, the effective mist drop collection can be realized in a wide temperature and humidity range, and the magnetic control micro-needle vertebra array mist capturing and water collecting helmet has a huge application prospect in military fields such as meeting basic water requirements in a short time during individual combat and the like.

Drawings

FIG. 1 is a magnetic control micro-needle vertebral array mist-catching water-collecting helmet;

FIG. 2 is a schematic view of a micrometer needle cone array structure;

FIG. 3 is a schematic view of collecting mist at the tip of a microneedle array under the action of a magnetic field;

FIG. 4 is a schematic diagram of mist transmission from the tip of the microneedle array to the tail under the action of a magnetic field;

FIG. 5 is a schematic view of a toroidal coil arrangement;

FIG. 6 is a schematic diagram of a load circuit;

in the figure: 1-liquid collecting box, 2-helmet body, 3-battery shell, 4-switch, 5-frequency generator, 6-helmet shell, 7-liquid collecting tank, 8-micron needle cone and 9-annular coil.

Detailed Description

The present invention will be further described with reference to the following embodiments.

Example 1: as shown in fig. 1 and 5, a magnetic control micro-needle vertebral array mist-catching water-collecting helmet,

a magnetic control micro-needle vertebra array mist-catching and water-collecting helmet comprises a liquid collecting box 1 and a helmet main body 2, wherein the liquid collecting box 1 is arranged at the bottom of the rear end of the helmet main body 2, the helmet main body 2 comprises a frequency generator 5, a helmet shell 6, a plurality of annular coils 9 and a power supply component, the frequency generator 5 is arranged on the outer side wall of the helmet shell 6, the annular coils 9 are arranged on the inner side wall of the helmet shell 6, the plurality of annular coils 9 are connected in series with the frequency generator 5 after being connected in series, and then are electrically connected with the power supply component to form a load circuit; the outer side wall of the helmet shell 6 is provided with a vertically upward micron magnetic needle cone array, the top of the micron magnetic needle cone array is a hydrophilic outer layer, the helmet shell wall at the bottom end of the micron magnetic needle cone array is a hydrophobic layer, the bottom of the helmet shell 6 is obliquely provided with an annular liquid collecting tank 7, and the lower end of the annular liquid collecting tank 7 is communicated with the top of the liquid collecting box 1;

the organic matter shell is polydimethylsiloxane, a hydrophilic functional group is introduced into the surface layer of the polydimethylsiloxane to form a hydrophilic outer layer, and the hydrophilic functional group is OH, CHO, COOH or NH₂Or SO₃H, the helmet shell 6 is a polymer shell, a hydrophobic functional group is introduced into the surface layer of the helmet shell 6 to form a hydrophobic layer, and the hydrophobic functional group is a hydrocarbon group or an ester group;

as shown in fig. 6, the power supply component includes a battery box 3 and a switch 4, the battery box 3 and the switch 4 are both disposed on the outer side wall of the helmet shell 6, two ends of the loop coil 9 are respectively a positive end and a negative end, the positive end of the battery box 3 is electrically connected with the switch 4, the frequency generator 5 and the positive end of the loop coil 9 sequentially through an electrical conductor, and the negative end of the loop coil 9 is electrically connected with the negative end of the battery box 3 through an electrical conductor;

when excitation signals are applied to two ends of the annular coil 9 and currents pass through the annular coil, a circular magnetic field is generated in the space around the annular coil 9, and the micrometer magnetic needle cone array is attracted downwards;

the frequency generator 5 is used as a signal source or an excitation source of a load circuit, and the periodical bending and continuous vibration of the micrometer magnetic needle cone array are realized by setting relevant parameters of the frequency generator, so that liquid drops are conveyed from the tip of the micrometer magnetic needle cone array to the bottom of the micrometer magnetic needle cone array;

the mist catching and water collecting method of the magnetic control micro-needle vertebral array mist catching and water collecting helmet comprises the following specific steps:

(1) setting control parameters of the frequency generator to enable the frequency generator to be connected with a load circuit according to a set frequency;

(2) when the load circuit is not switched on, the micron magnetic needle cone array is completely upright, fog drops are automatically attached to the hydrophilic outer layer at the top of the micron magnetic needle cone array in dense fog, the fog drops form micro liquid drops, and the micro liquid drops are fused into liquid drops; the frequency generator controls the load circuit to be switched on, the energized annular coil generates a circular magnetic field in the surrounding space of the micron magnetic needle vertebra array, the tip end of the magnetic needle vertebra array is continuously and directionally deformed by the downward attraction force under the drive of the circular magnetic field to form a wind field, Laplace pressure difference is formed at the top end and the bottom end of the magnetic needle vertebra array, and the directional movement of liquid drops at the top end of the magnetic needle vertebra array is accelerated to be conveyed to a hydrophobic part at the bottom end of the magnetic needle vertebra array to realize liquid drop enrichment (see fig. 3 and 4);

(3) the liquid drops enriched at the bottom end of the magnetic needle cone array are accumulated and grown to form liquid flows which are accumulated in an annular liquid collecting tank of the helmet shell, and the liquid flows in the annular liquid collecting tank are accumulated in a liquid collecting box under the action of gravity so as to realize mist capturing and water collecting of the helmet.

Example 2: the magnetic control micro-needle vertebra array mist-catching and water-collecting helmet of the embodiment is basically the same as the magnetic control micro-needle vertebra array mist-catching and water-collecting helmet of the embodiment 1, and the difference is that: as shown in fig. 2, the micrometer magnetic needle cone array includes a plurality of micrometer magnetic needle cones 8, the micrometer magnetic needle cones 8 are conical structures, and the tops of the micrometer magnetic needle cones 8 are conical structure vertexes; the conical structure of the micron magnetic needle cone can push liquid drops to reach the hydrophobic tail part and then automatically fall off, so that enrichment of the liquid drops is realized, the micron magnetic needle cone array can realize spontaneous and continuous collection of fog water, and the deflection of the micron magnetic needle cone is increased along with the increase of the magnetic field intensity due to the determination of the magnetic field direction;

the micron magnetic needle cone 8 comprises an organic shell and a magnetic nano particle filling body, and the magnetic nano particle filling body is filled in the organic shell; the height of the micrometer magnetic needle cone 8 is 20-30 μm.

Example 3: the magnetic control micro-needle vertebra array mist-catching and water-collecting helmet of the embodiment is basically the same as the magnetic control micro-needle vertebra array mist-catching and water-collecting helmet of the embodiment 2, and the difference is that: the bottom wall of the rear end of the helmet main body 2 is provided with a horizontal clamping groove, the side wall of the liquid collecting box 1 is provided with a horizontal clamping buckle, and the horizontal clamping buckle is inserted into the horizontal clamping groove to realize the disassembly of the liquid collecting box 1.

Example 4: the magnetic control micro-needle vertebra array mist-catching and water-collecting helmet of the embodiment is basically the same as the magnetic control micro-needle vertebra array mist-catching and water-collecting helmet of the embodiment 3, and the difference is that: a heat insulation layer is arranged in the helmet shell 6, and the heat insulation layer can be a spraying heat insulation layer or a heat insulation embedded layer arranged in the middle of the helmet shell; the low temperature of the outer surface of the helmet shell can be kept, water vapor in nearby air is condensed into water drops on the surface of the helmet when meeting cold liquid, the effect of simultaneously collecting fog and dew is achieved, and the device has the advantages of high efficiency and high yield particularly in the mist drop collection of desert and tropical rainforest in the early morning.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.