Electromagnetic coupling field control array type mist capturing system

Abstract

The invention discloses an electromagnetic coupling field control array type mist catching system which comprises a support and a mist catching net fixed to the support, the mist catching net is connected with a water guide groove, a self-adjusting permanent magnet phased array is arranged on one side of the mist catching net in parallel, and flexible array type batting is evenly distributed on grids of the mist catching net. The mist catching net can also be formed by overlapping a nylon net, a metal net and a nylon net in sequence, the flexible array type batting is distributed on the nylon net, electret materials are distributed on the metal net, and the metal net is connected with a storage battery. An electromagnetic field coupling system is adopted, the effect of an electrostatic field and a magnetic field is added on the basis of a traditional mist catching net, and the water collecting efficiency of the mist catching net is further improved.

Description

Technical Field

[0001] The invention relates to a water collecting device, in particular to an electromagnetic coupling field controlled array type fog capturing system. Background Art

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

[0003] The fog-catching net can collect water droplets in the fog and convert them into usable fresh water. For example, in some coastal desert areas or areas shrouded in mist on high mountains, the fog contains a large number of tiny water droplets. After being collected by the fog-catching net and subjected to simple purification treatment, they can be used to irrigate crops, provide drinking water for humans and livestock, etc., thus alleviating the local water shortage.

[0004] Most existing fog capture net technologies focus on changing the hydrophilic and hydrophobic structure of the net to improve the capture efficiency of droplets in the fog. This is effective for capturing larger droplets in the fog, but the capture efficiency of smaller droplets in the fog needs to be improved. It is of great significance to develop and design more efficient fog capture and water collection systems to more efficiently collect and utilize water resources in the fog. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to improve the capture efficiency of the fog capture net for large and small droplets in the fog, and to propose an electromagnetically coupled field-controlled array fog capture system, which enhances the attraction and capture process of large and small droplets in the fog by setting up an electromagnetic field-coupled fog capture and water collection device and using the electrostatic field generated on the fog capture net.

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

[0007] Furthermore, no less than five miniature bar permanent magnets are arranged inside the magnetic weather vane, and the magnetic pole directions of the bar permanent magnets are the same, and the magnetic pole directions are perpendicular to the direction of the magnetic weather vane.

[0008] Furthermore, the flexible array type flocs are made of iron-nickel composite materials and have a length of 1-2 mm. The flocs can increase the roughness and surface area of ​​the mesh surface to facilitate the attachment of small water droplets, but too much and too long flocs will clog the mesh and affect the passage of mist. When the floc coverage is about 30%-50%, the water collection efficiency is higher, and the mesh is a rhombus with a side length of 3 mm. Therefore, the water collection efficiency is higher when the floc length is 1-2 mm.

[0009] Furthermore, the mist catching net is composed of three layers of nets, namely, a nylon net, a metal net and a nylon net, in this order; the flexible array-type fluff is distributed on the nylon net, an electret material is distributed on the metal net, and the metal net is connected to a battery.

[0010] Furthermore, the metal mesh is an aluminum mesh, which is conductive and does not respond to magnetic fields, thus not affecting the accuracy of the magnetic weather vane. The aluminum mesh is also corrosion-resistant and oxidation-resistant, and has a relatively low cost.

[0011] Furthermore, the electret material is polypropylene or tourmaline. The electret material can maintain polarization for a long time to stably charge itself, thereby generating an electrostatic field.

[0012] Furthermore, it also includes a power generation device and a controller, wherein the controller is distributedly connected to the power generation device and the battery, 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.

[0013] Furthermore, the mist capture net is tilted relative to the horizontal plane, and the angle between the horizontal plane and the horizontal plane is in the range of 70°-80°, preferably 75°. If the horizontal angle is too small, it is not conducive to the water droplets sliding down the net surface, and it is easy to cause the water droplets to accumulate and block the mesh; if the horizontal angle is too large, it will reduce the contact time of the mist with the mist capture net, and it will also cause the water droplets to drip before they gather into large enough water droplets, and cannot be effectively collected.

[0014] The fog capture net can also be provided with hydrophilic and hydrophobic particles. The hydrophilic and hydrophobic particles can significantly improve the efficiency of fog capture. In the face of small fog droplets, the hydrophilicity allows the fog droplets to quickly adhere to and spread on the net surface, enhancing the adsorption force and preventing them from being blown away by the wind. As for large fog droplets, the hydrophobicity causes the fog droplets to form water beads, which roll down quickly under the action of gravity or wind. This combination allows the fog capture net to cope with fog droplets of different particle sizes and comprehensively improves the fog capture ability. The hydrophilic and hydrophobic particles cooperate with each other to reduce the residence time of fog droplets on the net surface, speed up the capture and collection speed, and increase the amount of fog captured per unit time. They can operate efficiently in various complex fog conditions and maximize the efficiency of fog water resource collection.

[0015] Beneficial effects:

[0016] On the one hand, the present invention realizes that the magnetic vane automatically rotates and arranges according to the wind direction by adding a self-adjusting permanent magnet phased array to the rear bracket of the fog catching net, forming a windward arrangement. The permanent magnet material on the magnetic 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 originally disordered flexible array-type fluff on the fog catching net at the microscopic level to be arranged in order along the magnetic field lines. The contact area between the flexible array-type fluff and the water vapor and droplets in the fog is increased under different wind directions, making the water vapor and water droplets easier to be captured and collected, and significantly improving the water collection efficiency; On the other hand, the present invention makes the fog catching net into three layers of overlapping nets, including a metal net in the middle, and adds an electret material on the metal net 3-2, which can maintain the dielectric material in the electric polarization state for a long time. The dielectric material can maintain polarization for a long time to make itself stably charged, thereby generating an electrostatic field. The generated electrostatic field will attract small droplets in the mist, and the droplets are more easily captured by the fog catching net under the attraction of electrostatic gravity. The electrostatic adsorption function of the electret material enables it to show good fog catching performance under different meteorological conditions. Whether in a breeze or a strong wind environment, the droplets can be better adsorbed to 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 the droplets, especially for the capture effect of tiny droplets.

[0017] The present invention adopts an electromagnetic field coupling system, adds the effects of electrostatic field and magnetic field on the basis of the traditional fog catching net, and further improves the water collection efficiency of the fog catching net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic coupling field control array type fog capture system of Example 4 of the present invention.

[0019] Figure 2 Schematic diagram of the microstructure of the mist-catching net structure of Example 4 of the present invention.

[0020] Figure 3 Schematic diagram of the specific structure of the self-adjusting permanent magnet phased array of Example 4 of the present invention.

[0021] Among them, 1- bracket, 2- power generation device, 3- fog catching net, 3-1- nylon net; 3-2- metal net; 3-3- flexible array type wool; 3-4- electret material; A- self-adjusting permanent magnet phased array, A-1- magnetic weather vane; A-2- connecting column; A-3- spherical shaft; 5- controller, 6- water guide trough; 7- water pipe; 8- storage battery.

[0022] Figure 4This is a schematic structural diagram of Example 1 of the present invention, wherein 4-1 is a bracket, 4-2 is a mist catching net, 4-3 is a water guide trough, and 4-4 is a water pipe.

[0023] Figure 5 It is a schematic diagram of the structure of Example 2 of the present invention, wherein 5-1-self-adjusting permanent magnet phased array, 5-1-2-magnetic wind vane; 5-1-1-connecting column; 5-1-3-spherical rotating shaft, 5-2-mist catching net, 5-2-1-flexible array type wool.

[0024] Figure 6 This is a schematic diagram of the structure of Example 3 of the present invention, wherein 6-1 is nylon mesh, 6-2 is metal mesh, 6-3 is battery, 6-4 is power generation device, 6-5 is controller, and 6-2-1 is electret material. DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention. Example 1: Common fog capture system

[0026] A fog capture system, such as Figure 4 As shown, it 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 angle range with the horizontal plane is 75°, the fog catching net 4-2 is connected to a water guide 4-3, and one end of the water guide 4-3 is connected to a water pipe 4-4 to guide the collected water. The lower end of the bracket 4-1 is inserted into the ground to fix the entire device. Example 2: Fog capture system with permanent magnet phased array

[0027] like Figure 5 As shown, what is different from Example 1 is that, based on the structure of Example 1, a self-adjusting permanent magnet phased array 5-1 is added and arranged in parallel on the inner side of the fog catching net. At the same time, a flexible array of wool 5-2-1 is evenly distributed on the grid 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 each magnetic weather vane is at the same distance from the fog catching net. 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 a spherical shaft 5-1-3, so that the magnetic wind vane can rotate autonomously according to the wind direction. Figure 5As shown, 10 miniature bar permanent magnets are arranged inside the magnetic vane, and the magnetic pole directions of the bar permanent magnets are the same, and the magnetic pole directions are perpendicular to the direction of the magnetic vane 5-1-2. In this way, the neatly arranged magnetic 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 capture net is located similar to a uniform magnetic field. The flexible array type wool 5-2-1 responds to the distribution along the magnetic field lines due to its own magnetic material characteristics, so that the wool is vertical 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 wool 5-2-1 is a magnetic material, made of iron-nickel composite material, and the length of the flexible array type wool 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 wool and the droplets in the fog under different wind directions. Example 3: Mist capture system containing electret material

[0028] like Figure 6 As shown, different from Example 1, based on the structure of Example 1, the fog capture net is set to a three-layer structure, which is composed of three layers of nylon net 6-1, metal net 6-2 and nylon net 6-1 in sequence, and the electret material 6-2-1 is distributed on the metal net 6-2, and the metal net 6-2 is connected to the battery 6-3. The side length of each grid of the nylon net 6-1 is about 3 mm, and the side length of each grid of the metal net 6-2 is about 1 cm. Such a three-layer net superposition setting makes the grid denser and the gap smaller. When the fog passes through, the net with the outer mesh first captures larger droplets, and then the inner layer further captures smaller droplets, forming a hierarchical capture effect, and improving the overall fog capture efficiency.

[0029] This embodiment also includes a power generation device 6-4 and a controller 6-5. The power generation device is a combination of solar power generation and wind power generation to generate electric energy and provide clean energy for the entire system. The total electric energy is stored in the storage battery 6-3. The controller is connected to the power generation device 6-4 and the storage battery 6-3 respectively. 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 energizes the metal mesh 6-2, so that the metal mesh 6-2 is charged to generate an electrostatic field and replenish 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 power small lighting equipment in the surrounding area, such as in remote, arid and power-scarce areas, to provide convenience for nighttime equipment inspections or basic lighting needs of surrounding residents.

[0030] 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. Example 4: A fog capture system containing both a permanent magnet phased array and an electret material

[0031] 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.

[0032] 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.

[0033] 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.

[0034] This embodiment uses an electromagnetic coupling field control array to capture fog. On the one hand, a number of self-adjusting magnetic vanes can be automatically adjusted according to different wind directions. The vanes are always facing the wind, so that the magnetic field lines generated by the permanent magnets on the vanes are perpendicular to the wind direction at the location of the fog capture net. When the magnetic field changes, the flexible array-type fluff 3-3 on the fog capture net will be arranged along the magnetic field lines, prompting the originally chaotic fluff on the fog capture net at the microscopic level to be arranged in order along the magnetic field lines, increasing its 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, the stable charged nature of the electret material 3-4 itself and the periodic intermittent discharge to the metal mesh 3-2 can generate an electrostatic field around the mesh, and then use the electrostatic field to attract large and small droplets in the fog, greatly improving the water collection efficiency. The captured droplets are collected in the water guide 6 and finally enter the water storage device. Example 5 Water collection test

[0035] 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%. Thermometers, anemometers and humidity meters were used to control the stability of temperature and humidity, the fog flow rate and the amount of fogging. The fog capture system of each embodiment was placed about 1 meter away from the opposite side of the fog generator. The radius of the droplet was about 3μm. The fog flow rate was about 2.5 m / s. The water collection capacity was measured using an electronic balance three hours after the experiment. All samples were tested and measured three times. The water collection capacity value is the average of the three experiments. The test results are shown in Table 1.

[0036] Table 1 Comparison of water collection rate under different device conditions

[0037] It can be seen from Table 1 that 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%, and adding both a permanent magnet phased array and an electret material to the structure can increase the water collection rate by 151.%.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in 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.

2. The electromagnetic coupling field control array type fog capture system according to claim 1, characterized in that: No less than five miniature bar-shaped permanent magnets are arranged inside the magnetic weather vane. The magnetic poles of the bar-shaped permanent magnets have the same direction, and the direction of the magnetic poles is perpendicular to the direction of the magnetic weather vane.

3. The electromagnetic coupling field control array type fog capture system according to claim 1, characterized in that: The flexible array-type flock is made of an iron-nickel composite material.

4. The electromagnetic coupling field control array type fog capture system according to claim 3, characterized in that: The length of the flexible array type fluff is 1-2 mm.

5. The electromagnetic coupling field control array type fog capture system according to any one of claims 1 to 4, characterized in that: The mist catching net is composed of three layers of nets, which are nylon net, metal net and nylon net in sequence. The flexible array type fluff is distributed on the nylon net, electret material is distributed on the metal net, and the metal net is connected to the battery.

6. The electromagnetic coupling field control array type fog capture system according to claim 5, characterized in that: The metal mesh is an aluminum mesh.

7. The electromagnetic coupling field control array type fog capture system according to claim 5 or 6, characterized in that: The electret material is polypropylene or tourmaline.

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

9. The electromagnetic coupling field control array type fog capture system according to any one of claims 1 to 8, 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°.

10. The electromagnetic coupling field control array type fog capture system according to claim 9, 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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