Electromagnetic Coupling Field-Controlled Array-Type Fog-Capturing System

Abstract

The present invention discloses an electromagnetic coupling field-controlled array type fog-catching system, which includes a bracket and a fog-catching net fixed on the bracket. The fog-catching net is connected with a water guide groove. On one side of the fog-catching net, a self-adjusting permanent magnet phased array is arranged in parallel. Flexible array type fluff is evenly distributed on the grid of the fog-catching net. The fog-catching net can also be composed of three layers of nets which are a nylon net, a metal net and a nylon net stacked in sequence. The flexible array type fluff is distributed on the nylon net, and electret materials are distributed on the metal net. The metal net is connected with a storage battery. The present invention adopts an electromagnetic field coupling system, adds the action of an electrostatic field and a magnetic field on the basis of a traditional fog-catching net, and further improves the water collection efficiency of the fog-catching net.

Description

Technical Field

[0001] The present invention relates to a water collection device, and more particularly to an electromagnetic coupling field-controlled array type fog capture system. Background Art

[0002] In arid and water-scarce areas, people's demand for water resources is difficult to meet, and a lot of manpower and material resources are consumed in transporting water resources. In these areas, fog is a potential water resource. If the fog in the air can be collected and utilized, it can not only solve the water shortage problem, but also reduce the input of manpower and material resources.

[0003] The fog-catching net can collect the water droplets in the fog and convert them into available fresh water. For example, in some coastal desert areas or mountainous areas with heavy fog, the fog contains a large number of tiny water droplets. After being collected by the fog-catching net and simply purified, it can be used for irrigating crops, providing drinking water for humans and livestock, etc., alleviating the local water shortage situation.

[0004] Most of the existing fog-catching net technologies focus on changing the hydrophilic-hydrophobic structure of the net to improve the capture efficiency of liquid droplets in the fog. This has a good capture effect on larger liquid droplets in the fog, but the capture efficiency for smaller liquid droplets in the fog still needs to be improved. Developing and designing a more efficient fog capture and water collection system to more efficiently collect and utilize the water resources in the fog is of great significance. Summary of the Invention

[0005] Object of the Invention: The object of the present invention is to improve the capture efficiency of the fog-catching net for large and small liquid droplets in the fog, and to propose an electromagnetic coupling field-controlled array type fog capture system. By setting up an electromagnetic field coupling fog capture and water collection device and using the electrostatic field generated on the fog-catching net to strengthen the attraction and capture process of large and small liquid droplets in the fog.

[0006] Technical Solution: The electromagnetic coupling field-controlled array type fog capture system described in the present invention includes a bracket and a fog-catching net fixed on the bracket. The fog-catching net is connected with a water guide groove. A self-adjusting permanent magnet phased array is arranged in parallel on one side of the fog-catching net. Flexible array type fluff is evenly distributed on the grid of the fog-catching net. The self-adjusting permanent magnet phased array includes no less than two connecting columns. The connecting columns are parallel to the fog-catching net, and magnetic wind vanes are evenly distributed on the connecting columns. The magnetic wind vanes are rotatably connected to the connecting columns.

[0007] Furthermore, there are no less than five micro bar permanent magnets inside the magnetic wind vane. The magnetic pole directions of the bar permanent magnets are the same, and the magnetic pole direction is perpendicular to the direction of the magnetic wind vane.

[0008] Furthermore, the flexible array-like fluff is made of an iron-nickel composite material and has a length of 1-2 mm. The fluff can increase the roughness and surface area of the mesh surface, facilitating the attachment of small water droplets. However, excessive and long fluff will block the mesh holes and affect the passage of fog. When the fluff coverage rate is about 30%-50%, the water collection efficiency is relatively high, and the mesh holes are rhombuses with a side length of 3 mm. Therefore, when the fluff length is 1-2 mm, the water collection efficiency is relatively high.

[0009] Furthermore, the fog-catching net is composed of three layers of nets, namely a nylon net, a metal net, and a nylon net, stacked in sequence. The flexible array-like fluff is distributed on the nylon net, the electret material is distributed on the metal net, and the metal net is connected to the storage battery.

[0010] Furthermore, the metal net is an aluminum net. The aluminum net can conduct electricity and does not respond to the magnetic field, thus not affecting the accuracy of the magnetic wind vane. The aluminum net also has corrosion resistance, oxidation resistance, and relatively low cost.

[0011] Furthermore, the electret material is polypropylene or tourmaline. The electret material can maintain polarization for a long time and make itself stably charged, thus generating an electrostatic field.

[0012] Furthermore, it also includes a power generation device and a controller. The controller is distributed and connected to the power generation device and the storage battery. The controller is used to monitor the power of the power generation device, charge the storage battery, and intermittently power on the metal net.

[0013] Furthermore, the fog-catching net is inclined relative to the horizontal plane, and the included angle with the horizontal plane ranges from 70° to 80°, preferably 75°. If the horizontal angle is too small, it is not conducive to the water droplets sliding down along the mesh surface, easily causing water droplet accumulation and blocking the mesh holes; if the horizontal angle is too large, it will reduce the contact time of the fog with the fog-catching net and cause the water droplets to drip before converging into large enough water droplets, unable to effectively collect.

[0014] Hydrophilic and hydrophobic particles can also be provided on the fog-catching net. Hydrophilic and hydrophobic particles can significantly improve the fog-catching efficiency. Facing small fog droplets, the hydrophilicity allows the fog droplets to quickly attach and spread on the mesh surface, enhancing the adsorption force and preventing them from being blown away by the wind. For large fog droplets, the hydrophobicity makes the fog droplets form water beads and quickly roll down under the action of gravity or wind. This combination method enables the fog-catching net to handle fog droplets of different particle sizes, comprehensively improving the fog-catching ability. The hydrophilic and hydrophobic particles cooperate with each other, reducing the residence time of the fog droplets on the mesh surface, accelerating the capture and collection speed, increasing the fog-catching amount per unit time, and being able to operate efficiently under various complex fog conditions, maximizing the fog water resource collection efficiency.

[0015] Beneficial effects:

[0016] On the one hand, in the present invention, by adding a self-adjusting permanent magnet phased array to the rear bracket of the fog-catching net, the magnetic wind vane can automatically rotate and arrange according to the wind direction, forming an arrangement facing the wind. The permanent magnet material on the magnetic wind vane can generate a magnetic field, and the generated magnetic field is perpendicular to the wind direction. The generated magnetic field will act on the fog-catching net, prompting the flexible array-like fluff that was originally disordered at the microscopic level on the fog-catching net to be arranged orderly along the magnetic field lines. This increases the contact area between the flexible array-like fluff and the water vapor and droplets in the fog under different wind directions, making it easier for the water vapor and water droplets to be captured and collected, and significantly improving the water collection efficiency.

[0017] On the other hand, in the present invention, by making the fog-catching net into a three-layer superimposed net, including a metal net in the middle, adding an electret material to the metal net 3-2, which is a dielectric material that can maintain the electrode polarization state for a long time. It can maintain polarization for a long time and make itself stably charged, so it can generate an electrostatic field. The generated electrostatic field will attract the small fog droplets in the fog. Under the attraction of the electrostatic force, the fog droplets are more easily captured by the fog-catching net. The electrostatic adsorption function of the electret material enables it to exhibit good fog-catching performance under different meteorological conditions. Whether in a gentle breeze or a strong wind environment, the fog droplets can be better adsorbed onto the surface of the fog-catching net under the action of the electrostatic field, thereby improving the applicability of the fog-catching net under complex meteorological conditions. Compared with the traditional fog-catching net, this electrostatic adsorption effect can more significantly improve the capture efficiency of fog droplets, especially for the capture effect of tiny fog droplets is more obvious.

[0018] The present invention adopts an electromagnetic field coupling system, adding the action of an electrostatic field and a magnetic field on the basis of the traditional fog-catching net, further improving the water collection efficiency of the fog-catching net. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the electromagnetic coupling field-controlled array type fog-catching system according to Embodiment 4 of the present invention.

[0020] Figure 2 It is a schematic diagram of the microscopic structure of the fog-catching net structure according to Embodiment 4 of the present invention.

[0021] Figure 3 It is a schematic diagram of the specific structure of the self-adjusting permanent magnet phased array according to Embodiment 4 of the present invention.

[0022] Among them, 1 - bracket, 2 - power generation device, 3 - fog-catching net, 3-1 - nylon net; 3-2 - metal net; 3-3 - flexible array-like fluff; 3-4 - electret material; A - self-adjusting permanent magnet phased array, A-1 - magnetic wind vane; A-2 - connecting column; A-3 - spherical rotating shaft; 5 - controller, 6 - water guide groove, 7 - water pipe, 8 - storage battery.

[0023] Figure 4This is a schematic structural diagram of Embodiment 1 of the present invention, where 4-1 is a bracket, 4-2 is a fog-catching net, 4-3 is a water guide trough, and 4-4 is a water pipe.

[0024] Figure 5 This is a schematic structural diagram of Embodiment 2 of the present invention, where 5-1 is a self-adjusting permanent magnet phased array, 5-1-2 is a magnetic wind vane; 5-1-1 is a connecting column; 5-1-3 is a spherical rotating shaft, 5-2 is a fog-catching net, and 5-2-1 is a flexible array type floc.

[0025] Figure 6 This is a schematic structural diagram of Embodiment 3 of the present invention, where 6-1 is a nylon net, 6-2 is a metal net, 6-3 is a storage battery, 6-4 is a power generation device, 6-5 is a controller, and 6-2-1 is an electret material. Specific embodiments

[0026] To deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. This embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0027] Embodiment 1 Ordinary fog-catching system

[0028] A fog-catching system, as Figure 4 shown, includes a bracket 4-1 and a fog-catching net 4-2 fixed on the bracket. The fog-catching net 4-2 is a nylon net. The fog-catching net 4-2 is inclined relative to the horizontal plane, and the included angle with the horizontal plane ranges from 75°. The fog-catching net 4-2 is connected to a water guide trough 4-3, and one end of the water guide trough 4-3 is externally connected to a water pipe 4-4 to export and collect water. The lowermost end of the bracket 4-1 is inserted into the ground to fix the entire device.

[0029] Embodiment 2 Fog-catching system containing a permanent magnet phased array

[0030] As Figure 5 shown, different from Embodiment 1, on the basis of the structure of Embodiment 1, a self-adjusting permanent magnet phased array 5-1 is added, which is arranged in parallel on the inner side of the fog-catching net. At the same time, flexible array type flocs 5-2-1 are evenly distributed on the meshes of the fog-catching net 5-2. The self-adjusting permanent magnet phased array 5-1 includes two connecting columns 5-1-1. The connecting columns 5-1-1 are parallel to the fog-catching net 5-2 to ensure that the distance of each magnetic wind vane from the fog-catching net is the same. Magnetic wind vanes 5-1-2 are evenly distributed on the connecting columns 5-1-1. The magnetic wind vanes 5-1-2 and the connecting columns 5-1-1 are rotatably connected through spherical rotating shafts 5-1-3, so that the magnetic wind vanes can rotate independently according to the wind direction. As Figure 5As shown in the figure, there are 10 miniature bar permanent magnets inside the magnetic wind vane. The magnetic pole directions of the bar permanent magnets are the same, and the magnetic pole direction is perpendicular to the direction of the magnetic wind vane 5-1-2. In this way, the neatly arranged magnetic wind vane can not only generate a magnetic field perpendicular to the wind direction, but also make the magnetic field generated in the space where the fog-catching net is located approximate to a uniform magnetic field. The flexible array type fluff 5-2-1 makes a response along the magnetic field lines due to its own magnetic material characteristics, making the fluff perpendicular to the wind direction, increasing its collision area with the droplets in the fog under different wind directions, and improving the capture efficiency of the droplets in the fog. The flexible array type fluff 5-2-1 is a magnetic material and is prepared from an iron-nickel composite material. The length of the flexible array type fluff 5-2-1 is 2 mm. It can respond to the magnetic field and arrange along the magnetic field lines, increasing the actual collision area between the fluff and the droplets in the fog under different wind directions.

[0031] Embodiment 3: A fog-catching system containing electret materials

[0032] As Figure 6 shown, different from Embodiment 1, on the basis of the structure of Embodiment 1, the fog-catching net is set as a three-layer structure, which is composed of the superposition of three layers of nets: a nylon net 6-1, a metal net 6-2, and a nylon net 6-1 in sequence. The electret material 6-2-1 is distributed on the metal net 6-2, and the metal net 6-2 is connected to the storage battery 6-3. Each grid side length of the nylon net 6-1 is about 3 mm, and each grid side length of the metal net 6-2 is about 1 cm. Such a superposition of three layers of nets will make the grids denser and the gaps smaller. When the fog passes through, first, the larger fog droplets are captured by the outer-layer mesh, and then the smaller fog droplets are further captured by the inner layer, forming a hierarchical capture effect and improving the overall fog-catching efficiency.

[0033] This embodiment also includes a power generation device 6-4 and a controller 6-5. The power generation device combines solar power generation and wind power generation to generate electric energy and provide clean energy for the whole system. The total electric energy is stored in the storage battery 6-3. The controller is respectively connected to the power generation device 6-4 and the storage battery 6-3. The controller 6-5 is used to monitor the power of the power generation device. After the power generation device 6-4 stores electricity for the storage battery 6-3, it intermittently powers on the metal net 6-2, making the metal net 6-2 charged to generate an electrostatic field and supplementing the power loss of the electret material 6-2-1. On the other hand, the excess electric energy can also be supplied to other production activities. For example, it can be used to supply power to small surrounding lighting devices, such as providing convenience for equipment inspection at night or the basic lighting needs of surrounding residents in remote arid areas with scarce power resources.

[0034] In the present embodiment, the metal mesh 6-2 is an aluminum mesh, and the electret material 6-2-1 is polypropylene. Through the spraying technology, a small volume of polypropylene solution is sprayed on the metal mesh, and the sprayed liquid can make the electret material remain on the metal mesh after drying. The electret material 6-2-1 can maintain polarization for a long time to make itself stably charged, so it can generate an electrostatic field. The generated electrostatic field can attract small droplets in the mist, making the droplets more easily adsorbed to the surface of the mist catching net. The electric field generated by the electret can also affect the behavior of water droplets on the surface of the mist catching net. Under the action of the electric field, the water droplets will be guided to converge in a specific direction. This helps to gather the water droplets scattered in various places of the mist catching net, making it easier to slide and be collected.

[0035] Example 4: A fog capture system containing both a permanent magnet phased array and an electret material

[0036] The device structures of embodiment 2 and embodiment 3 are combined. Figure 1 As shown, it includes a bracket 1 and a fog catching net 3 fixed on the bracket, the fog catching net 3 is tilted relative to the horizontal plane, and the angle between the fog catching net 3 and the horizontal plane is 75 degrees, the fog catching net 3 is connected to a water guide 6, and one end of the water guide 6 is connected to a water pipe 7 to drain the collected water. The lower end of the bracket 1 is inserted into the ground to fix the entire device.

[0037] It also includes a self-adjusting permanent magnet phased array A arranged in parallel on the inner side of the fog catching net, such as Figure 3 As shown, the self-adjusting permanent magnet phased array A includes two connecting columns A-2, and the connecting columns A-2 are parallel to the fog catching net 3 to ensure that each magnetic wind vane is at the same distance from the fog catching net. Magnetic wind vanes A-1 are evenly distributed on the connecting columns A-2, and the magnetic wind vanes A-1 and the connecting columns A-2 are rotatably connected through a spherical shaft A-3, so that the magnetic wind vanes can rotate autonomously according to the wind direction. There are 10 miniature bar permanent magnets inside the magnetic wind vane A-1, and the magnetic pole directions of the bar permanent magnets are the same, and the magnetic pole directions are perpendicular to the directions of the magnetic wind vanes A-1.

[0038] The fog collecting net 3 is arranged in a three-layer structure, such as Figure 2 As shown, the sequence is nylon mesh 3-1, metal mesh 3-2 and nylon mesh 3-1, three layers of mesh are stacked, electret material polypropylene 3-4 is distributed on the metal mesh 3-2, and the metal mesh 3-2 is connected to the battery 8. At the same time, flexible array-type wool 3-3 is evenly distributed on the grid of nylon mesh 3-1. The flexible array-type wool 3-3 is a magnetic material made of iron-nickel composite material, and the length of the flexible array-type wool 3-3 is 2 mm.

[0039] In this embodiment, an electromagnetic coupling field control array is used for fog capture. On the one hand, a number of self-adjusting magnetic wind vanes can be automatically adjusted according to different wind directions, and the wind vanes are always in the upwind state, so that the magnetic field lines generated by the permanent magnets on the wind vanes are perpendicular to the wind direction at the position where the fog-catching net is located. When the magnetic field changes, the flexible arrayed fluff 3-3 on the fog-catching net will arrange along the magnetic field lines, prompting the originally disordered fluff on the fog-catching net at the microscopic level to be arranged orderly along the magnetic field lines, increasing the collision area with the droplets in the fog under different wind directions, and greatly improving the capture efficiency of the droplets in the fog. On the other hand, by using the property of the electret material 3-4 being stably charged itself and discharging intermittently to the metal mesh 3-2, an electrostatic field can be generated around the mesh, and then the electrostatic field is used to attract large and small droplets in the fog, greatly improving the water collection efficiency. The captured droplets converge in the water guide groove 6 and finally enter the water storage device.

[0040] Example 5 Water collection experiment test

[0041] The water collection rate test experiment was carried out in a closed space of 2m×2m×2m. The indoor temperature was set at 23°C, and an independent humidifier was used to control the relative humidity at about 90%. A thermometer, an anemometer and a humidity measuring instrument were used to control the stability of temperature and humidity, the fog flow velocity and the fog generation amount. The fog-catching systems of each embodiment were placed about 1 meter opposite the fog generator. The radius of the fog droplets was about 3μm. The fog flow velocity was about 2.5 m / s. After three hours of the experiment, an electronic balance was used to measure the water collection amount. All samples were repeatedly measured 3 times. The water collection amount value was the average of the 3 experiments. The test results are shown in Table 1.

[0042] Table 1 Comparison of water collection rates under different device conditions

[0043]

[0044] As can be seen from Table 1, adding a permanent magnet phased array to the structure can increase the water collection rate by 69.1%. Adding an electret material to the structure can increase the water collection rate by 75.9%. Adding both a permanent magnet phased array and an electret material to the structure can increase the water collection rate by 151.%.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electromagnetically coupled field controlled array type fog capture system, comprising a bracket and a fog capture net fixed on the bracket, wherein the fog capture net is connected to a water guide trough, characterized in that: A self-adjusting permanent magnet phased array is arranged in parallel on one side of the fog catching net, and flexible array-type fluff is evenly distributed on the grid of the fog catching net. The self-adjusting permanent magnet phased array includes no less than two connecting columns, and the connecting columns are parallel to the fog catching net. Magnetic wind vanes are evenly distributed on the connecting columns, and the magnetic wind vanes are rotatably connected to the connecting columns; no less than five miniature bar permanent magnets are arranged inside the magnetic wind vane, and the magnetic pole directions of the bar permanent magnets are the same, and the magnetic pole directions are perpendicular to the directions of the magnetic wind vanes. The flexible array-type fluff is made of iron-nickel composite material, and the fog catching net is composed of three layers of nets, which are nylon net, metal net and nylon net in order. The flexible array-type fluff is distributed on the nylon net, and electret material is distributed on the metal net, and the metal net is connected to a battery.

2. The electromagnetic coupling field control array type fog capture system according to claim 1, characterized in that: The length of the flexible array type fluff is 1-2 mm.

3. The electromagnetic coupling field control array type fog capture system according to claim 1, characterized in that: The metal mesh is an aluminum mesh.

4. The electromagnetic coupling field control array type fog capture system according to claim 1, characterized in that: The electret material is polypropylene or tourmaline.

5. The electromagnetic coupling field control array type fog capture system according to claim 1, characterized in that: It also includes a power generation device and a controller, wherein the controller is connected to the power generation device and the battery respectively, and the controller is used to monitor the power of the power generation device and intermittently energize the metal mesh after the battery is charged.

6. The electromagnetic coupling field control array type fog capture system according to any one of claims 1 to 5, characterized in that: The mist catching net is arranged to be inclined relative to the horizontal plane, and the angle between the fog catching net and the horizontal plane is in the range of 70°-80°.

7. The electromagnetic coupling field control array type fog capture system according to claim 6, characterized in that: The mist catching net is arranged to be inclined relative to the horizontal plane, and the angle between the net and the horizontal plane is 75°.

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