A mist water collecting device

Abstract

The application provides a fog water collecting device of a fog water collecting tank, which comprises a shell, a support, a patterned super-wetting material plate, a spiral condensing pipe, a water guide pipe and a water collecting tank. Fog water is introduced into the collecting tank through an air inlet, and flows around the support. The fog water gradually condenses into spherical water droplets on the surface of the super-wetting material plate, and drops into a U-shaped groove directly below, and then flows into the underground water collecting tank through the water guide pipe. The collected water is extracted by a water pump, and the fog water collecting rate is high, and the effect of efficiently collecting fog water in a natural wind environment is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ecological engineering, and particularly relates to a fog water collecting device. BACKGROUND

[0002] Nowadays, the global freshwater resources are extremely scarce, and more and more cannot meet the normal demand of human beings for water. How to efficiently and environmentally obtain freshwater resources is a great problem. Fortunately, nature gives us some inspiration, for example, the beetle living in the Namib Desert, the back surface of which contains hydrophilic and hydrophobic regions, which is an important reason why it can collect water in the air. At night, the fog blowing from the Atlantic Ocean quickly deposits on the hydrophilic region, slowly grows, and falls from the hydrophilic position to the hydrophobic region when it is large enough to overcome the capillary force, and the hydrophobic region can transport water to another hydrophilic region, so that the hydrophilic and hydrophobic surface can collect water in the fog and transfer it to the mouth. These organisms that can capture water vapor in the air provide researchers with a lot of inspiration, so that a large number of efficient, stable, and excellent performance of biomimetic water collection materials are prepared and put into use. Water vapor can be captured in the arid desert to meet the water demand of itself.

[0003] The fog water collecting device can capture water droplets in the air, which is an effective way to solve the problem of insufficient water supply. CN101000289A discloses a fog water collector suitable for collecting fog water samples in a field environment, which mainly comprises a rainwater blocking cover, two layers of fog water absorbing nets, a fog water collecting dish, a connecting handle and a supporting leg. The fog water collecting device has the following problems: (1) the capacity of the water storage bottle is small and the number of containers is small, and the capacity of the collected water is limited; (2) the water storage tank needs to be frequently taken and installed when in use, which is very inconvenient in use; (3) the length of the flow guide pipe is limited, the water collecting groove is small, and the buffer capacity is limited; (4) the temperature in the box cannot be adjusted with the change of the environment. SUMMARY

[0004] The purpose of the present application is to solve the problem of low fog water collection rate of the current fog water collecting device, and to provide a fog water collecting device to obtain a higher fog water collection rate and to maximize the preservation of the original substances in the fog water.

[0005] A fog water collecting device comprises:

[0006] a shell, which is cylindrical;

[0007] an air inlet, which is installed at the upper part of the shell;

[0008] an exhaust fan, which is installed at the lower part of the shell, and the air inlet and the exhaust fan are arranged at an angle.

[0009] a water collecting tank, which is installed at the bottom of the shell;

[0010] a support, which is installed in the shell, and is surrounded by six support wall panels in the shape of a hexagonal prism, and is oriented to guide the flow direction of the fog water;

[0011] a plurality of patterned super-wetting material panels, which are installed on the outer side of each support wall panel, and each support wall panel is installed with a plurality of patterned super-wetting material panels, and the contact surface of the patterned super-wetting material panels with the fog is composed of a micro-nano pattern simulating the surface of a chiton;

[0012] a plurality of U-shaped tubes, which are installed below the patterned super-wetting material panels to collect the water flowing down from the patterned super-wetting material panels, and each patterned super-wetting material panel is installed with a U-shaped tube, which is arranged transversely and has a certain inclination with the horizontal plane, so that the water can flow out of the U-shaped tube;

[0013] a plurality of water guide pipes, which are installed at the joint between two adjacent support wall panels and are arranged vertically to collect the water flowing out of the U-shaped tube and guide it into the water collecting tank;

[0014] a spiral condensing pipe, which is installed in the inner cavity surrounded by the six support wall panels of the support.

[0015] Further, a water taking pipe is also included, which is installed at the bottom of the water collecting tank, and has a water inlet end and a water outlet end, and the water inlet end of the water taking pipe is connected to the water collecting tank.

[0016] Further, a water pump is also included, which is connected to the water outlet end of the water taking pipe.

[0017] Further, a filter screen is also included, which is installed in the air inlet.

[0018] Further, a wind vane is also included, which is installed at the top of the shell.

[0019] Further, a base and a plurality of foundation bolts are also included, the base is annular, is sleeved on the outer wall of the bottom of the shell, is located above the water collecting tank, and the foundation bolts are installed on the base in a radial direction and are uniformly spaced.

[0020] Further, the inner walls of the shell and the water collecting tank are attached with heat insulation materials.

[0021] Further, the patterned super-wetting material plate comprises a two-layer structure, a micro-nano super-hydrophobic structure layer as a bottom layer, and a super-wetting pattern layer above the super-hydrophobic structure layer, wherein the super-wetting pattern is a combination pattern of one or more than two of square, circle, triangle, ellipse, regular or irregular polygon arranged at uniform intervals.

[0022] Further, three patterned super-wetting material plates are arranged from top to bottom on the support wall plate opposite to the air inlet, two super-hydrophobic plates and one patterned super-wetting material plate are arranged from top to bottom in sequence on the support wall plate opposite to the air outlet fan, wherein the patterned super-wetting material plate is opposite to the air outlet fan, and the other four support wall plates are the same as the support wall plate opposite to the air inlet, and three patterned super-wetting material plates are arranged from top to bottom on each of the other four support wall plates.

[0023] Further, the super-wetting pattern on the patterned super-wetting material plate is a square arranged at uniform intervals.

[0024] Advantages and beneficial effects of the present application:

[0025] 1. The present application directs the flow direction of fog water, so that the fog water flows along the inner wall surface of the hexagonal prism, the multi-directional cutting edge increases the contact time and contact area of the fog water and the surface of the super-wetting material plate, and the gas fills the entire box to improve the efficiency of fog water collection.

[0026] 2. The present application obtains a micro-nano structure surface by laser processing, and then composites lauric acid and performs heat treatment, so as to prepare a stainless steel metal surface with super-hydrophilic / hydrophobic performance by adjusting laser processing parameters and heating temperature. The laser etching super-wetting surface is simple, controllable, stable and environmentally friendly.

[0027] 3. The present application finds that the square pattern has the highest fog water collection amount, so that the square pattern super-wetting material plate is hung on the other support wall plates except the support wall plate opposite to the air outlet fan, which is beneficial to the rapid collection of fog water. The air flow speed is slow at the support wall plate opposite to the air outlet fan, so that two super-hydrophobic plates are hung on the upper part to easily attach more water droplets and faster leave the surface. At the same time, considering the influence of the air outlet speed, the square pattern super-wetting material plate is placed at the position opposite to the air outlet fan to prevent the formed water droplets from being blown out of the box due to the light weight. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall shape structure of the device;

[0029] Figure 2 It is a schematic diagram of the internal structure of the device;

[0030] Figure 3 It is a shape diagram of the air inlet side of the device;

[0031] Figure 4Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0032] Figure 5 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0033] Figure 6 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0034] Figure 7 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0035] Figure 8 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0036] Figure 9 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0037] Figure 10 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0038] Figure 11 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0039] Figure 12 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe.

[0040] Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe; DETAILED DESCRIPTION

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs, unless otherwise specified.

[0043] As Figures 1-4 Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe; Figure 1 is a schematic diagram of the shape of the component for installing U-shaped pipe and water guide pipe;

[0044] The present application also provides a fog water collecting device, which comprises:

[0045] a housing 2, which is cylindrical.

[0046] an air inlet 9, which is installed on the upper part of the housing 2 and integrally formed with the housing 2. The air inlet 9 is in the shape of a trumpet with the outer part flared and the inner part contracted. The air inlet increases the air speed to quickly guide the fog water in the air into the fog water collecting device.

[0047] a filter screen 16, which is installed in the air inlet 9.

[0048] an exhaust fan 3, which is installed on the lower part of the housing 2. The air inlet 9 and the exhaust fan 3 are arranged in a diagonal line. The exhaust fan keeps the air pressure in the box balanced and stable, and in addition, the contact with the bottom collecting plate facilitates the storage of air at the bottom, and the timely rotation of the box by the wind vane maximizes the air intake of the box.

[0049] a wind vane 1, which is installed on the top of the housing 2.

[0050] a water collecting tank 7, which is installed on the bottom of the housing 2. The water collecting tank 7 is cylindrical and coaxially arranged with the housing. The water collecting tank 7 is arranged below the ground.

[0051] a water taking pipe 6, which is installed on the bottom of the water collecting tank 7. The water taking pipe 6 has a water inlet end and a water outlet end, and the water inlet end of the water taking pipe 6 is connected in communication with the water collecting tank 7. It is necessary to ensure that the connection between the water collecting tank 7 and the water taking pipe 6 is tightly connected to prevent water leakage.

[0052] a water pump 5, which is connected with the water outlet end of the water taking pipe 6. The water pump 5 is a pressing type, which is convenient for water taking.

[0053] a base 8, which is annular and sleeved on the outer wall of the bottom of the housing 2 and located above the water collecting tank 7.

[0054] a plurality of anchor bolts 4, which are installed on the base 8 in a radial uniform interval and used for fixedly connecting the base 8 with the ground. The rotation of the housing 2 and the air inlet 9 can be performed according to the direction of the wind vane.

[0055] A support 11 is installed in the housing 2, and the support 11 is surrounded by six support wall plates in a hexagonal prism shape. The flow direction of the fog water can be oriented to flow along the inner wall surface of the hexagonal prism, and the multi-directional trimming increases the contact time and contact area of the fog water and the super-wetting material plate surface, so that the gas fills the entire box to improve the efficiency of fog water collection. In addition, the hexagonal prism wall facilitates the installation and replacement of the hydrophobic plate.

[0056] A plurality of patterned super-wetting material plates 12 are installed on the outer side of the support wall plate, and 2-6 patterned super-wetting material plates 12 are installed on each support wall plate. Figure 2 As shown in the middle, three patterned super-wetting material plates 12 are arranged uniformly from top to bottom. The contact surface of the patterned super-wetting material plate 12 with the fog is composed of a micro-nano pattern simulating the surface of a shellfish, which improves the fog water collection efficiency and reduces the fog water loss rate.

[0057] A plurality of U-shaped pipes 14 are installed below the patterned super-wetting material plate 12 for receiving water flowing down from the patterned super-wetting material plate 12. One U-shaped pipe 14 is installed below each patterned super-wetting material plate 12, and the U-shaped pipe 14 is arranged horizontally with a certain inclination to the horizontal plane, so that water can flow out of the U-shaped pipe 14.

[0058] A plurality of water guide pipes 15 are installed at the joint between adjacent two support wall plates in a vertical arrangement for receiving water flowing out of the U-shaped pipe 14 and guiding the water into the water collection tank 7.

[0059] A spiral condensing pipe 10 is installed in the inner cavity surrounded by the six support wall plates of the support 11. When the external hot air or normal temperature air contacts the low temperature super-hydrophobic material plate surface cooled by the condensing pipe, due to the large temperature difference between the hot and cold fog water, the micro-nano super-wetting surface can be used as a carrier to rapidly condense into liquid state, and the micro-nano super-wetting surface is etched and chemically modified by nanosecond pulse laser to form spherical water droplets. Under the action of gravity, the water droplets drop into the U-shaped pipe 14 directly below, flow into the underground water collection tank 7 through the water guide pipe 15, and the collected water is extracted through the water pump 5.

[0060] In order to facilitate fixation or installation, the patterned super-wetting material plate 12 is installed by using a hook 13.

[0061] When the fog condenses into fog water inside the fog water collecting device and forms spherical water droplets on the micro-nano patterned super-wetting material plate 12 under the action of its own surface tension, the contact area of these water droplets with the micro-nano patterned super-wetting material plate 12 is less than 2%, and the friction is extremely small, so the water droplets will freely and vertically roll down the micro-nano patterned super-wetting material plate 12 and quickly flow into the water collecting tank 7 along the inner wall of the U-shaped tube 14 and the water guide pipe 15. The collected fog water retains the original components in the fog water to a greater extent.

[0062] In terms of specific material selection, preferably, the inner wall of the shell 2 and the water collecting tank 7 is made of heat-insulating and heat-preservation material; the inner wall of the micro-nano patterned super-wetting material plate 12 is made of stainless steel material with a thickness of 1-5 mm, and the outer wall is partially provided with a micro-nano super-hydrophobic structure layer, which is easy to replace, thus ensuring the durability of the entire device.

[0063] Condensation is the process of a gas turning into a liquid when it is cooled, such as water vapor turning into water when it is cooled. The conditions for fog water condensation are air cooling and a certain air humidity. The common fog water condensation phenomenon in life, such as the formation of water droplets in autumn and winter, is due to air cooling. The temperature of the air is relatively high, and the ground cools rapidly in autumn and winter, causing the air to condense into small droplets. The fog water condensation idea of the device is derived from this. By controlling the cooling temperature in the tank, the device can achieve similar climate conditions in autumn in a certain space, thus facilitating the condensation of fog water. The device can provide the best temperature for fog water cooling in different seasons and different regions. For example, in Tianjin, a northern city, the average temperature in spring is 1-12℃, in summer is 19-29℃, and in autumn is 23-31℃. Therefore, the spiral condensing pipe temperature is set to 0-8℃ in spring, 10-15℃ in summer, and 12-20℃ in autumn, respectively, so as to achieve the purpose of saving energy and collecting fog water.

[0064] The use method of the device is as follows:

[0065] The micro-nano patterned super-wetting material plate 12, the U-shaped tube 14, and the water guide pipe 15 are installed on the built-in support 11, wherein the micro-nano patterned super-wetting material plate 12 is installed on the hook 13 by its own gravity, and the U-shaped tube 14 and the water guide pipe 15 are fixedly installed by the stainless steel angle bracket 17.

[0066] A small amount of mineral oil is put into the water collecting tank 7 to reduce the evaporation of fog water; the water collecting tank 7 and the water taking pipe 6 are assembled to ensure the airtightness of the connection to avoid water leakage; the water collecting tank 7 is placed below the ground, and the water pump 5 is connected to the water taking pipe 6 at the lower part of the water collecting tank 7.

[0067] The above-ground part of the fog water collecting device is placed on the arranged ground, and is fixed stably by the anchor bolts 4.

[0068] The exhaust fan 3 is opened to circulate the gas in the box and keep it in a steady state; the spiral condenser tube 10 is opened to control the temperature inside the shell 2 at 0-8 DEG C in spring, 10-15 DEG C in summer and 12-20 DEG C in autumn.

[0069] The application further provides a preparation method of the patterned super-wetting material plate 12, which adopts a nanosecond laser etching method.

[0070] In this embodiment, six groups of stainless steel material surfaces are etched by nanosecond pulse laser and chemically modified, the surface area of each group is 400mm 2 , the scanning speed is 300mm / s, the scanning interval is 0.03mm, and a super-hydrophobic layer is formed. Figures 5-9 The scanning speed is 1000mm / s, the scanning interval is 0.003mm, a hydrophilic layer is formed, the fog generator used in the experiment has an output of 250ml / h, the spraying distance is 5cm, the room temperature is 15-20 DEG C, and the six groups of experiments are compared in terms of the collected amount of fog water.

[0071]

[0072] The six groups of comparative experiments have the same collection time of 10min, the same mass of each group of collection dishes, the same flow speed and output of fog water, and the proportion of the hydrophilic surface with patterns is kept at about 31%-36%. According to the experimental results, the fog water collection amount of the square pattern is the highest, and the collection speed is the fastest.

[0073] The specific processing steps are as follows:

[0074] 1. Pretreatment: immerse the stainless steel material with a thickness of 1-5mm in a beaker containing disinfectant alcohol, put it into an ultrasonic cleaner for cleaning and disinfection for 10min, and then naturally dry it in air.

[0075] 2. The upper surface of the cleaned stainless steel material is etched by nanosecond pulsed laser at a scanning speed of 400-1400 mm / s and a scanning interval of 0.003-0.09 mm. The laser is Hans laser EP-20-SHG (average power: 8 W; wavelength: 532 nm; spot size: 20 nm; focal length: 224 mm; pulse repetition frequency: 10-200 KHZ).

[0076] 3. The etched plate surface is chemically modified using lauric acid in a vacuum heating box at a heating temperature of 100-200 degrees Celsius to form a micro-nano super-hydrophobic structure layer, and the super-hydrophobic surface has a contact angle of 150-164 degrees and a rolling angle of 1-10 degrees. After heating, the device is taken out and naturally cooled in the air.

[0077] 4. Fog water collection: fog water is automatically collected by the device and flows into the water collection tank 7; the fog water in the water collection tank 7 is generally taken out by the water pump 5 before dawn to reduce evaporation; the collected fog water in the water collection tank 7 is poured into a pre-prepared storage bottle and sealed; the device is cleaned with deionized water and wiped clean; the device is disassembled and packed into a packaging box and shipped.

[0078] 5. Subsequent processing: the storage bottle is horizontally transported to the test unit under light-proof conditions, and the time is preferably within 12 hours, and if the storage time is too long, it should be stored and transported in a corresponding low-temperature device.

[0079] The application further provides a placing mode of the patterned super-wetting material plate 12.

[0080] As shown in Figure 10 11-1 is a support wall plate facing the air inlet; and 11-2 is a support wall plate facing the exhaust fan.

[0081] As shown in Figure 11 three patterned super-wetting material plates 12 are arranged on the support wall plate 11-1 facing the air inlet from top to bottom.

[0082] As shown in Figure 12 two super-hydrophobic plates 18 and one patterned super-wetting material plate 12 are arranged on the support wall plate 11-2 facing the exhaust fan from top to bottom, and the patterned super-wetting material plate 12 faces the exhaust fan.

[0083] The other four support wall plates are the same as the support wall plate facing the air inlet, and three patterned super-wetting material plates 12 are arranged on each support wall plate from top to bottom.

[0084] The preferred pattern on the patterned super-wetting material plate 12 is a square pattern arranged at uniform intervals. According to the experimental results, the square pattern has the highest amount of collected fog water and the maximum wind speed at the air inlet, so hanging patterned super-wetting material plates 12 on other support wall plates except the one directly opposite the exhaust fan is beneficial to the rapid collection of fog water. The air flow speed at the support wall plate 11-2 directly opposite the exhaust fan is slow, and hanging two super-hydrophobic plates 18 on the upper part of it is easy to attach more water droplets and leave the surface faster. At the same time, considering the influence of the air speed at the air outlet, placing the patterned super-wetting material plate 12 at the position directly opposite the exhaust fan prevents the shaped water droplets from being blown out of the box due to their light weight.

[0085] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application and not to limit it; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed.

Claims

1. A mist collection device, characterized in that, include: A housing (2), wherein the housing (2) is cylindrical; An air inlet (9) is installed on the upper part of the housing (2); A row of fans (3) is installed at the lower part of the housing (2), and the air inlet (9) is arranged diagonally with the exhaust fans (3); A water collection tank (7) is installed at the bottom of the housing (2); A support member (11) is installed inside the housing (2). The support member (11) is formed by six support wall plates in a hexagonal prism shape to guide the flow direction of the mist. Multiple patterned superwetting material plates (12) are suspended on the outer side of the supporting wall panel. Each supporting wall panel is equipped with multiple patterned superwetting material plates (12). The contact surface between the patterned superwetting material plate (12) and the mist is composed of micro-nano-scale patterns that resemble the surface of a beetle. The patterned superwetting material plate includes a two-layer structure. The bottom layer is a micro-nano-scale superhydrophobic structure layer. A superwetting pattern layer is formed on top of the superhydrophobic structure layer. The superwetting pattern is one or more combinations of square, circular, triangular, elliptical, regular or irregular polygons arranged at uniform intervals. Three patterned superwetting material plates (12) are arranged from top to bottom on the support wall panel (11-1) facing the air inlet. Two superhydrophobic plates (18) and one patterned superwetting material plate (12) are arranged from top to bottom on the support wall panel (11-2) facing the exhaust fan. The patterned superwetting material plate (12) faces the exhaust fan. The other four support wall panels are the same as the support wall panel facing the air inlet, with three patterned superwetting material plates (12) arranged from top to bottom. Multiple U-shaped tubes (14) are installed below the patterned superwetting material plate (12) to collect water flowing down from the patterned superwetting material plate (12). Each patterned superwetting material plate (12) has a U-shaped tube (14) installed below it. The U-shaped tube (14) is arranged horizontally and has a certain angle with the horizontal surface so that water can flow out from the U-shaped tube (14). Multiple water pipes (15) are installed at the joint of two adjacent support wall panels and are arranged vertically to collect water flowing out from the U-shaped pipe (14) and guide the water into the water collection tank (7); A spiral condenser (10) is installed in the inner cavity formed by the six support wall plates of the support member (11).

2. The mist collection device according to claim 1, characterized in that, It also includes a water intake pipe (6), which is installed at the bottom of the water collection tank (7). The water intake pipe (6) has an inlet end and an outlet end, and the inlet end of the water intake pipe (6) is connected to the water collection tank (7).

3. The mist collection device according to claim 2, characterized in that, It also includes a water pump (5), which is connected to the outlet end of the water intake pipe (6).

4. The mist collection device according to claim 1, characterized in that, It also includes a filter (16) installed inside the air inlet (9).

5. The mist collection device according to claim 1, characterized in that, It also includes a wind vane (1), which is mounted on top of the housing (2).

6. The mist collection device according to claim 1, characterized in that, It also includes a base (8) and multiple anchor bolts (4). The base (8) is annular and is fitted on the bottom outer wall of the housing (2) and located above the water collection tank (7). The anchor bolts (4) are installed radially and evenly spaced on the base (8) to fix the base (8) to the ground.

7. The mist collection device according to claim 1, characterized in that, The inner walls of the shell (2) and the water collection tank (7) are both covered with heat insulation material.

8. The mist collection device according to claim 1, characterized in that, The superwetting pattern on the patterned superwetting material plate (12) is a square with uniform spacing.

Images