Portable water trapping device based on MOFs

Abstract

The utility model relates to a portable water trapping device based on MOFs (Metal-Organic Frameworks). The portable water trapping device comprises a main shell, and an air inlet and an air inlet fan are arranged at the top of the side surface of the main shell; an HEPA (High Efficiency Particulate Air) filter screen and an activated carbon air filtering module are arranged below the air inlet fan; an MOFs water molecule adsorption module and an electric heating element for heating the MOFs water molecule adsorption module are arranged below the activated carbon air filtering module in a communicating manner; a thermoelectric refrigeration TEC element and a condensation cavity in contact with a refrigeration area of the TEC element are arranged below the MOFs water molecule adsorption module, and an exhaust port communicated with the condensation cavity is formed in the side face of the main shell; a water filtering module and a water tank communicated with the water filtering module are arranged below the condensation cavity in a communicating manner; a power distribution unit is further arranged in the main shell and used for supplying power to the air inlet fan, the electric heating element and the TEC element. The device can be carried to outdoor places such as the field, air water trapping in a dry environment is achieved, and fresh water resources are provided for use.

Description

Technical Field

[0001] The utility model relates to the technical field of water capture, in particular to a portable water capture device based on MOFs. Background Art

[0002] With the increasingly severe global water shortage problem, developing efficient and sustainable water acquisition technologies has become the key to solving this challenge, and the water vapor contained in the air is a potential and widely distributed water resource.

[0003] Traditional air water intake technologies (such as the condensation method) usually rely on high humidity environments or large energy consumption, and the equipment is bulky and difficult to be portable, which limits its application in arid regions, wilderness exploration or emergency situations. In addition, the traditional technologies have limited filtering ability for particulate matter and pollutants in the air, it is difficult to ensure water quality safety, and the water intake efficiency is low in low humidity environments. Therefore, there is an urgent need for an air water intake device that can operate efficiently in low humidity environments, is small and portable, and has multiple filtering and purification functions to solve the problems of high energy consumption, heavy equipment, poor environmental adaptability and water quality safety of traditional technologies, and provide a sustainable water resource solution for scenarios such as arid regions, outdoor activities and emergency rescue. Summary of the Utility Model

[0004] The purpose of this application is to provide a portable water capture device based on MOFs, which is used to capture water vapor in the air and condense it into liquid water in outdoor and other situations, and provide it for use after purification, aiming to provide a convenient portable solution for the problem of outdoor water shortage.

[0005] To achieve the above purpose, this application provides a portable water capture device based on MOFs, and the device includes:

[0006] A main housing, an air inlet is arranged at the top of the side of the main housing, and an air inlet fan is arranged near the air inlet at the top of the main housing;

[0007] A HEPA filter is arranged below the air inlet fan in the main housing, the plane where the HEPA filter is located is perpendicular to the vertical axis of the main housing, and an activated carbon air filtration module for filtering air is arranged below the HEPA filter in the main housing;

[0008] A MOFs water molecule adsorption module is connected and arranged below the activated carbon air filtration module in the main housing, and an electric heating element for heating the MOFs water molecule adsorption module is arranged outside the MOFs water molecule adsorption module;

[0009] A thermoelectric cooling TEC element and a condensation chamber in contact with the cooling area of the TEC element are provided below the MOFs water molecule adsorption module in the main housing, and an exhaust port communicating with the condensation chamber is provided on the side of the main housing;

[0010] A water filtration module is communicatively connected below the condensation chamber in the main housing, and a water tank is communicatively connected below the water filtration module in the main housing;

[0011] A power distribution unit electrically connected to the intake fan, the electric heating element, and the TEC element is further provided in the main housing for supplying power to the intake fan, the electric heating element, and the TEC element.

[0012] Optionally, the MOFs water molecule adsorption module includes a heat-conducting housing and a plurality of MOFs water molecule adsorption plates arranged in the heat-conducting housing. A plurality of through holes are provided on the MOFs water molecule adsorption plates, and the surfaces of the MOFs water molecule adsorption plates are coated with MOFs materials.

[0013] Optionally, the plurality of MOFs water molecule adsorption plates are arranged parallel to each other, and each MOFs water molecule adsorption plate is perpendicular to the vertical axis of the main housing.

[0014] Optionally, the MOFs water molecule adsorption plates are made of heat-conducting materials, and the edges of the MOFs water molecule adsorption plates are connected to the heat-conducting housing.

[0015] Optionally, the electric heating element includes an electric heating wire or an electric heating sheet in contact with the heat-conducting housing.

[0016] Optionally, a heat exchange connection is established between the heat dissipation area of the TEC element and the heat-conducting housing.

[0017] Optionally, the inner wall of the condensation chamber is coated with a hydrophobic coating.

[0018] Optionally, the water tank is made of transparent glass or transparent plastic, and the device further includes an ultraviolet lamp arranged outside the water tank for killing microorganisms in the water stored in the water tank. The ultraviolet lamp is electrically connected to the power distribution unit.

[0019] Optionally, the device further includes a straw, the top of the straw extends outside the main housing, and the bottom of the straw extends into the water tank.

[0020] Optionally, the bottom of the water tank is inclined, and the bottom of the straw corresponds to the lowest point of the bottom of the water tank.

[0021] Through the above technical solution, the intake fan sucks the air in the environment into the main housing through the air inlet. After being filtered by the HEPA filter and the activated carbon air filtration module, it enters the MOFs water molecule adsorption module below the activated carbon air filtration module. The water molecules in the air are adsorbed by this adsorption module. The electrothermal element can be powered on to heat the MOFs water molecule adsorption module after the adsorption reaches a certain degree, such as saturation. Then, the adsorbed water molecules are released to form air enriched with water molecules. The air enriched with water molecules enters the condensation chamber. The TEC element cools down the condensation chamber through heat exchange, and the water molecules in the air therein condense into liquid water. After passing through the water filtration module, it enters the water tank for storage for later use. This MOFs-based portable water capture device can efficiently capture water vapor in the air in arid outdoor environments or other water-scarce scenarios, providing fresh water that meets the daily needs of users and effectively alleviating the water shortage problem. Its compact and lightweight design is convenient for carrying and is suitable for various scenarios, such as arid areas, wilderness exploration, outdoor activities, and emergency rescue. Whether dealing with sudden natural disasters or meeting the needs of wilderness survival, this device can provide a reliable source of fresh water to ensure the water safety of users.

[0022] Other features and advantages of this application will be described in detail in the subsequent specific implementation section. Brief Description of the Drawings

[0023] The drawings are used to provide a further understanding of this application and constitute a part of the specification. Together with the following specific implementation, they are used to explain this application, but do not constitute a limitation to this application. In the drawings:

[0024] Figure 1 is a schematic structural diagram of a MOFs-based portable water capture device shown according to an exemplary embodiment;

[0025] Figure 2 is a schematic structural view of a MOFs-based portable water capture device shown according to an exemplary embodiment;

[0026] Figure 3 is Figure 2 a partial enlarged view of area A in

[0027] Reference Signs:

[0028] 10. Main housing; 20. Air inlet; 30. Exhaust port; 40. Intake fan; 50. HEPA filter; 60. Activated carbon air filtration module; 70. MOFs water molecule adsorption module; 71. MOFs water molecule adsorption plate; 72. Heat-conducting housing; 80. TEC element; 90. Condensation chamber; 100. Water filtration module; 110. Water tank; 120. Power distribution unit; 121. Battery; 122. Microprocessor; 130. Straw; 140. Flow guide member. Detailed implementation manners

[0029] The following details the specific implementation manners of the present application with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and understanding the present application, and are not used to limit the present application.

[0030] Figure 1 is a schematic structural diagram of a portable water capture device based on MOFs shown according to an exemplary embodiment, Figure 2 is a schematic structural view of a portable water capture device based on MOFs shown according to an exemplary embodiment, Figure 3 is Figure 2 a partial enlarged view of area A in Figures 1 to 3 , and the portable water capture device based on MOFs includes:

[0031] A main housing 10, an air inlet 20 is provided at the top of the side surface of the main housing 10, and an intake fan 40 is provided near the air inlet 20 at the top inside the main housing 10;

[0032] A HEPA filter 50 is provided below the intake fan 40 inside the main housing 10. The surface where the HEPA filter 50 is located is perpendicular to the vertical axis of the main housing 10. An activated carbon air filtration module 60 for filtering air is provided below the HEPA filter 50 inside the main housing 10;

[0033] A MOFs water molecule adsorption module 70 is communicatively connected below the activated carbon air filtration module 60 inside the main housing 10, and an electric heating element for heating the MOFs water molecule adsorption module 70 is provided outside the MOFs water molecule adsorption module 70;

[0034] A thermoelectric cooling TEC element 80 and a condensation chamber 90 in contact with the cooling area of the TEC element 80 are provided below the MOFs water molecule adsorption module 70 inside the main housing 10. An exhaust port 30 communicating with the condensation chamber 90 is provided on the side surface of the main housing 10;

[0035] A water filtration module 100 is communicatively connected below the condensation chamber 90 inside the main housing 10, and a water tank 110 is communicatively connected below the water filtration module 100 inside the main housing 10;

[0036] A power distribution unit 120 electrically connected to the intake fan 40, the electric heating element, and the TEC element 80 is further provided inside the main housing 10 for supplying power to the intake fan 40, the electric heating element, and the TEC element 80.

[0037] Among them, the main housing 10 can be cylindrical. By wrapping other components of the MOF-based portable water capture device with the main housing 10, the integration and protection of other components can be achieved. In a possible implementation, the diameter of the main housing 10 can be 8 cm, the height can be 25 cm, and the weight is controlled within 2.5 kg, so that the MOF-based portable water capture device is easy to carry. The main housing 10 can be made of materials with light weight, high hardness, and corrosion resistance, such as aluminum alloy, titanium alloy, etc., to adapt to environments such as the wild.

[0038] Participate Figures 1 to 3 , an air inlet 20 is provided at the top position on the side of the main housing 10. The air inlet 20 can be arranged at equal intervals around the latitude of the main housing 10 for one week to increase the air inlet area. At least one intake fan 40 is provided at the top position inside the main housing 10, near the air inlet 20, for sucking the ambient air outside the main housing 10 into the main housing 10 through the air inlet 20. The axis of the intake fan 40 can be horizontally arranged, and an air guiding structure such as an inclined plate or a curved pipe structure can be arranged behind the intake fan 40 to change the air flow direction so that the sucked air flows downward. Of course, the axis of the intake fan 40 can also be inclined, for example, the air outlet side of the intake fan 40 faces the vertical axis of the main housing 10 and the air outlet side is inclined downward, and multiple opposite intake fans 40 can be arranged to offset the horizontal speed of the incoming air flow and retain the downward moving speed for flow. The intake fan 40 can include a motor and a fan blade connected to the motor. For the main housing 10, the vertical axis in its normal use state is its vertical axis. For example Figure 2 The shown MOF-based portable water capture device, its normal use state can be as Figure 2 shown in the static state. At this time, its vertical direction, that is, the axis parallel to the length direction of the side, is the vertical axis.

[0039] Inside the main housing 10, refer to Figure 3 , a HEPA (High Efficiency Particulate Air) filter can be provided below the intake fan 40. The HEPA filter 50 can be made of a high-density fiber material such as polypropylene PP fiber. These fibers are arranged in a multi-layer staggered manner to form a complex network structure, which can filter particulate matter in the air, such as particles with a particle size greater than 0.3 microns, such as dust, pollen, etc. The surface where the HEPA filter 50 is located can be parallel to the main housing 10, for example Figure 2The vertical axis of the cylindrical main housing 10 shown is perpendicular. Thus, when air flows downward in the main housing 10, it can first pass through the HEPA filter 50 in a direction perpendicular to the plane where the HEPA filter 50 is located, so as to improve the filtration efficiency. The number of HEPA filters 50 can be one or more. The periphery of the HEPA filter 50 can be fixed to the inner wall of the main housing 10, or the HEPA filter 50 can be fixed to the HEPA filter frame and the HEPA filter frame can be detachably arranged in the main housing 10. For example, a card slot matching the HEPA filter frame can be arranged in the main housing 10, thus facilitating the installation or disassembly of the HEPA filter frame.

[0040] In the main housing 10, an activated carbon air filtration module 60 can be arranged below the HEPA filter 50. It uses activated carbon as an adsorbent and can adsorb harmful gases and odor molecules in the air such as formaldehyde, benzene, hydrogen sulfide, smoke, volatile organic compounds (VOCs), etc. For example, the activated carbon air filtration module 60 can include two fixing plates fixed in the main housing 10 and arranged parallel to each other. The fixing plates are provided with a plurality of ventilation holes, and the activated carbon is placed between the two fixing plates. The particle size of the activated carbon is larger than the ventilation holes. When air flows through, it enters through the ventilation holes on one side of the fixing plate to contact the activated carbon, and then flows out from the other side of the fixing plate. In other possible implementation manners, the activated carbon air filtration module 60 can also be arranged in a detachable manner. For example, the activated carbon air filtration module 60 can be an independent chamber. A plurality of ventilation holes are arranged at the top and bottom of the chamber, and the chamber can be independently detached from the main housing 10, thus facilitating the replacement of the activated carbon therein. When the chamber is fixed in the main housing 10, its edge is in close contact with the main housing 10 to prevent air from flowing through the gaps around the chamber, ensuring that air only flows through the ventilation holes of the chamber.

[0041] In the main housing 10, a MOFs water molecule adsorption module 70 can be arranged below the activated carbon air filtration module 60. The MOFs water molecule adsorption module 70 is communicated with the activated carbon air filtration module 60 and uses metal-organic framework (MOFs) as an adsorbent for water molecules to adsorb water molecules in the air and can desorb and release the adsorbed water molecules when heated.

[0042] Optionally, the MOFs water molecule adsorption module 70 includes a heat-conducting housing 72 and a plurality of MOFs water molecule adsorption plates 71 arranged in the heat-conducting housing 72. The MOFs water molecule adsorption plates 71 are provided with a plurality of through holes, and the surface of the MOFs water molecule adsorption plates 71 is coated with MOFs material.

[0043] For example, the heat-conducting housing 72 is made of a material with good heat-conducting performance. For example, it can be made of metal or insulating heat-conducting composite materials. The heat-conducting housing 72 can be cylindrical or annular. At least one MOFs water molecule adsorption plate 71 is arranged inside it. A plurality of through holes are arranged on the MOFs water molecule adsorption plate 71 for air to flow through, and a MOFs material is coated on the surface of the MOFs water molecule adsorption plate 71 to contact the air and absorb water molecules in the air. For example, the coated MOFs material can be MOF-303. MOF-303 is an aluminum-based metal-organic framework material, which is famous for its high water absorption performance. Under the condition of humidity of 30%-80%, each gram of MOF-303 material can adsorb 0.4 grams of water, which is suitable for various humidity conditions. Of course, in possible implementation manners, other water molecule adsorbents can also be used, such as silica gel, activated alumina, and molecular sieve, etc.

[0044] Optionally, a plurality of MOFs water molecule adsorption plates 71 in the heat-conducting housing 72 are arranged parallel to each other, and each MOFs water molecule adsorption plate 71 is perpendicular to the vertical axis of the main housing 10. The MOFs water molecule adsorption plate 71 can be made of a heat-conducting material, and the edge of the MOFs water molecule adsorption plate 71 is connected to the heat-conducting housing 72.

[0045] For example, referring to Figure 2 , when the heat-conducting housing 72 is annular and the main housing 10 is cylindrical, the cross-section of the annular heat-conducting housing 72 perpendicular to its own axis can be circular, so that the heat-conducting housing 72 can be matched with the inner side of the main housing 10. When the heat-conducting housing 72 is fixed in the main housing 10, the axis of the heat-conducting housing 72 can coincide or be substantially coincident with the vertical axis of the main housing 10. The side surface of the heat-conducting housing 72 can be in contact with the inner side of the main housing 10 to avoid gaps through which air can flow. Each MOFs water molecule adsorption plate 71 can be perpendicular to the vertical axis of the main housing 10. For example, when the axis of the heat-conducting housing 72 coincides or is parallel to the axis of the main housing 10, the upper and lower surfaces of the MOFs water molecule adsorption plate 71 with the largest area are also perpendicular to the axis of the heat-conducting housing 72, so that the normal line or axis of the upper and lower surfaces of the MOFs water molecule adsorption plate 71 is parallel to the vertical axis of the heat-conducting housing 72. The MOFs water molecule adsorption plate 71 can be made of metal, and the edge of the MOFs water molecule adsorption plate 71 can be connected to the inner side of the heat-conducting housing 72, so that when the heat-conducting housing 72 is heated, heat can be conducted to the MOFs water molecule adsorption plate 71 to heat the MOFs water molecule adsorption plate 71.

[0046] Each of the MOF water molecule adsorption plates 71 can be arranged parallel to each other, and the through holes on each MOF water molecule adsorption plate 71 can be arranged in the same layout manner. For example, they can be arranged in a matrix. In this way, the through holes of each MOF water molecule adsorption plate 71 are aligned, which can make the resistance of the air flow smaller. When the air enters, it can flow through the through holes in sequence to pass through multiple MOF water molecule adsorption plates 71, come into contact with these MOF water molecule adsorption plates 71, and the water molecules in the air are absorbed by the multi-stage MOF water molecule adsorption plates 71, which can improve the absorption rate of the air water molecules.

[0047] Inside the main housing 10, an electric heating element can be arranged outside the MOF water molecule adsorption module 70, which is used to heat the MOF water molecule adsorption module 70 when powered on, so that the MOF adsorbent in the MOF water molecule adsorption module 70 can desorb and release the previously adsorbed water molecules when heated.

[0048] Optionally, the electric heating element includes an electric heating wire or an electric heating sheet arranged in contact with the heat-conducting housing 72.

[0049] For example, the electric heating wire can be arranged around the heat-conducting housing 72, and there can be multiple electric heating sheets in contact with different positions of the heat-conducting housing 72. In this way, the electric heating wire or the electric heating sheet can transfer heat to the heat-conducting housing 72 when powered on and heated up, so as to heat the heat-conducting housing 72, and then transfer it to the MOF water molecule adsorption plate 71 to make it heat up, for example, heat up to 60 - 70 °C, and finally make the MOF on its surface heat up and release the adsorbed water molecules. In a possible implementation manner, if the heat-conducting housing is made of metal, the electric heating element, such as the electric heating wire and the electric heating sheet, can be wrapped by a heat-conducting insulating material.

[0050] The thermoelectric cooling TEC element 80 (Thermoelectric Cooler) is based on the Peltier effect. By driving an electric couple composed of two semiconductor materials with current, one end absorbs heat (refrigerates) while the other end releases heat (heats), thus realizing an accurate temperature control function, and having the advantages of small volume and fast response. Inside the main housing 10, the TEC element 80 and the condensation chamber 90 can be arranged below the MOF water molecule adsorption module 70. The refrigeration area of the TEC element 80 can be directly in contact with the condensation chamber 90, so that the TEC element 80 can reduce the temperature of the condensation chamber 90 to refrigerate the air therein, for example, reduce the temperature therein to 10 - 15 °C.

[0051] The TEC element 80 can be in a ring shape and is arranged between the MOFs water molecule adsorption module 70 and the condensation chamber 90, so that the air flowing out of the MOFs water molecule adsorption module 70 can flow into the condensation chamber 90 through the hollow area of the ring-shaped TEC element 80. The condensation chamber 90 can be made of a material with good heat conduction, such as metal. The refrigerating side of the ring-shaped TEC element 80 can face downward and be in contact with the upper surface of the condensation chamber 90. An opening can be provided on the upper surface of the condensation chamber 90 to communicate with the MOFs water molecule adsorption module 70. A plurality of condensation fins can be arranged in the condensation chamber 90 to increase the contact area with the air and improve the condensation efficiency. The inner wall of the condensation chamber 90 can be coated with a hydrophobic coating to facilitate the detachment of the condensed liquid water from the inner wall of the condensation chamber 90. An exhaust port 30 can be provided on the side of the main housing 10, and the exhaust port 30 is communicated with the condensation chamber 90. For example, an opening on the side of the condensation chamber 90 can face the exhaust port 30 or be communicated through a pipeline or other means, so as to facilitate the air in the condensation chamber 90 to be discharged outside the main housing 10.

[0052] Optionally, the heat release area of the TEC element 80 is in heat exchange connection with the heat-conducting housing 72. Continuing with the previous example, the heating side of the TEC element 80 can face upward and be in contact with the bottom of the heat-conducting housing 72, so that the heat released by the heat release end of the TEC element 80 can be transmitted to the heat-conducting housing 72 to heat it. By making full use of the heat of the TEC element 80, the heat of the TEC element 80 can be used for heating first. When the heating effect is poor, the electric heating element is used for auxiliary heating to save electric energy.

[0053] Inside the main housing 10, a water filtration module 100 can be arranged below the condensation chamber 90. The water filtration module 100 is communicated with the condensation chamber 90. Thus, the liquid water obtained by condensing the air water molecules in the condensation chamber 90 can first enter the water filtration module 100 for filtration.

[0054] Optionally, the water filtration module 100 can adopt an activated carbon filter. By using activated carbon, the peculiar smell, organic matters and some heavy metal ions in the water can be removed. When the water flows through the activated carbon, the impurities are adsorbed on the surface of the activated carbon. For example, the activated carbon filter can include a cup-shaped housing with a hollow interior and an open top. An opening can be provided at the bottom of the condensation chamber 90 for the condensed liquid water to flow out, and the bottom of the condensation chamber 90 can extend into the cup-shaped housing through the open top of the cup-shaped housing. Activated carbon is arranged in the cup-shaped housing, and an opening can be provided at the bottom of the cup-shaped housing for the filtered water to flow out. A cover body with small holes can be arranged in the cup-shaped housing to cover the open top of the cup-shaped housing for fixing the activated carbon. The cover body is located below the bottom of the condensation chamber 90, so that after the liquid water flows out from the bottom of the condensation chamber 90, it can flow into the cup-shaped housing through the small holes of the cover body. In addition, see Figure 2, the MOF-based portable water capture device may include a diversion member 140 with a hollow annular interior. The axis of the diversion member 140 may coincide or be substantially coincident with the vertical axis of the main housing 10, such that the upper and lower openings of the diversion member 140 communicate with the bottom of the condensation chamber 90 and the top of the water filtration module 100 respectively, thereby guiding the liquid water flowing out of the condensation chamber 90 into the water filtration module 100.

[0055] Inside the main housing 10, a water tank 110 may be provided below the water filtration module 100, and the water tank 110 communicates with the water filtration module 100. For example, the water tank 110 may be cylindrical with an open top, and the top communicates with the bottom of the water filtration module 100. Thus, the purified water flowing out of the water filtration module 100 can enter the water tank 110 for storage. Optionally, the water tank 110 is made of transparent glass or transparent plastic. The MOF-based portable water capture device further includes an ultraviolet lamp disposed outside the water tank 110 for killing microorganisms in the water stored in the water tank 110, and the ultraviolet lamp is electrically connected to the power distribution unit 120. In this way, the ultraviolet germicidal lamp can emit ultraviolet light to kill bacteria, viruses and other microorganisms in the water tank 110, achieving the function of sterilization and disinfection. Among them, the transparent glass or transparent plastic can be made of food-grade materials.

[0056] Optionally, referring to Figure 2 , the MOF-based portable water capture device further includes a straw 130. The top of the straw 130 extends outside the main housing 10, and the bottom of the straw 130 extends into the water tank 110. By providing the straw 130, the user can suck out and drink the purified water in the water tank 110 through the straw 130. Optionally, the bottom of the water tank 110 is inclined, and the bottom of the straw 130 corresponds to the lowest point of the bottom of the water tank 110, such that the bottom of the straw 130 is close to the lowest point of the bottom of the water tank 110. In this way, the water in the water tank 110 can first gather at the lowest point of the bottom of the water tank 110 under the action of gravity, facilitating entry into the straw 130 through the bottom of the straw at this point, and then being sucked out through the straw 130.

[0057] A power distribution module is also provided inside the main housing 10 for supplying power to the electrical appliances of the MOF-based portable water capture device, such as the intake fan 40, the heating element, the TEC element 80, and the ultraviolet lamp. The power distribution unit 120 may include a storage battery 121, such as a 60Wh lithium battery, and may also include a microprocessor 122, such as an ESP32. Electrical energy is provided by the storage battery 121, and the operation of each electrical appliance, such as the intake fan 40, the heating element, the TEC element 80, and the ultraviolet lamp, is controlled by the microprocessor 122. In addition, a switch may be provided to manually control the operation and stop of each electrical appliance.

[0058] For example, the intake fan 40 can be controlled by the microprocessor 122 or a switch to operate for a period of time first, so that ambient air enters the main housing 10 through the air inlet 20, passes through the HEPA filter 50 and the activated carbon air filtration module 60, and then enters the MOFs water molecule adsorption module 70. After the water molecules in the air are adsorbed by the MOFs, the dry air continues to flow and finally is discharged through the air outlet 30. Then, the thermoelectric cooling TEC element 80 and the electric heating element can be controlled to work. The electric heating element heats the MOFs water molecule adsorption module 70 to release the adsorbed water molecules to form air enriched with water molecules, which enters the condensation chamber 90 to be condensed into liquid water. Then, the liquid water is purified by the water filtration module 100 and enters the water tank 110 for storage. The ultraviolet lamp can also be controlled to start working during this process. In a possible implementation, the microprocessor 122 can first control the intake fan 40 to operate for a first preset period, and at the end of the first preset period, control the TEC element 80, the electric heating element, and the ultraviolet lamp to start working in a second preset period, and repeat the foregoing process after the second preset period ends. Of course, a first switch can also be connected in series in the circuit where the intake fan 40 is located, a second switch can be connected in series in the circuits where the thermoelectric cooling TEC element 80 and the ultraviolet lamp are located, and a third switch can be connected in series in the circuit where the electric heating element is located. The operation and stop of each electrical appliance are controlled by the closing of these switches, so as to realize the adsorption and desorption of water molecules.

[0059] Through the above technical solution, the intake fan 40 sucks the air in the environment into the main housing 10 through the air inlet 20. After being filtered by the HEPA filter 50 and the activated carbon air filtration module 60, it enters the MOFs water molecule adsorption module 70 below the activated carbon air filtration module 60. The water molecules in the air are adsorbed by this adsorption module. The electric heating element can be powered on to heat the MOFs water molecule adsorption module 70 after the adsorption reaches a certain degree, such as saturation. Then, the adsorbed water molecules are released to form air enriched with water molecules. The air enriched with water molecules enters the condensation chamber 90. The TEC element 80 cools down and makes the condensation chamber 90 cool down through heat exchange. The water molecules in the air are condensed into liquid water, which enters the water tank 110 for storage after passing through the water filtration module 100 for use. This MOFs-based portable water capture device can efficiently capture water vapor in the air in arid outdoor environments or other water-scarce scenarios, provide fresh water to meet the daily life needs of users, and effectively alleviate the water shortage problem. Its compact and lightweight design is convenient for carrying and is suitable for a variety of scenarios, such as arid areas, wilderness exploration, outdoor activities, and emergency rescue. Whether dealing with sudden natural disasters or meeting the needs of wild survival, this device can provide a reliable source of fresh water to ensure the water use safety of users.

[0060] Optionally, in a possible implementation, this MOFs-based portable water capture device further includes:

[0061] Temperature sensors are respectively arranged in the condensation chamber 90 and the MOFs water molecule adsorption module 70, and are communicatively connected to the microcontroller;

[0062] Humidity sensors are respectively arranged inside the condensation chamber 90 and the MOFs water molecule adsorption module 70, and are communicatively connected to the microcontroller;

[0063] A display screen is communicatively connected to the microcontroller.

[0064] Among them, the temperature sensors can collect the temperature information of the condensation chamber 90 and the MOFs water molecule adsorption module 70, and the humidity sensors can collect their humidity information, and then transmit it to the microcontroller and display it through the display screen, so as to facilitate the user to understand the humidity and temperature data during its operation. In addition, the microcontroller can also perform automatic control based on the temperature and humidity data. For example, when it is detected that the temperature of the condensation chamber 90 is relatively high, the power of the TEC module can be increased. When it is detected that the humidity of the condensation chamber 90 is insufficient and the temperature of the MOFs water molecule adsorption module 70 is relatively low, the power of the thermoelectric module can be increased.

[0065] The preferred embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all fall within the protection scope of the present application.

[0066] In addition, it should be noted that, in the case of no conflict, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present application does not separately describe various possible combination methods.

[0067] In addition, any combination can be made between various different embodiments of the present application as long as it does not violate the idea of the present application, and it should also be regarded as the content recorded in the present application.

Claims

1. A portable water capture device based on MOFs, characterized in that The device comprises: A main housing, wherein an air inlet is provided on the top of the side of the main housing, and an air intake fan is provided on the top of the main housing near the air inlet; A HEPA filter is provided below the air intake fan in the main housing, the surface of the HEPA filter is perpendicular to the vertical axis of the main housing, and an activated carbon air filter module for filtering air is provided below the HEPA filter in the main housing; A MOFs water molecule adsorption module is provided below the activated carbon air filtration module in the main housing, and an electric heating element for heating the MOFs water molecule adsorption module is provided outside the MOFs water molecule adsorption module; A thermoelectric cooling (TEC) element and a condensation chamber in contact with the cooling area of the TEC element are provided below the MOFs water molecule adsorption module in the main housing, and an exhaust port communicating with the condensation chamber is provided on the side of the main housing; A water filter module is provided in communication with the lower portion of the condensation chamber in the main housing, and a water tank is provided in communication with the lower portion of the water filter module in the main housing; A power distribution unit electrically connected to the air intake fan, the electric heating element and the TEC element is also provided in the main housing for supplying power to the air intake fan, the electric heating element and the TEC element.

2. The portable water capture device based on MOFs according to claim 1, wherein, The MOFs water molecule adsorption module includes a heat-conducting shell and a plurality of MOFs water molecule adsorption plates arranged in the heat-conducting shell. The MOFs water molecule adsorption plates are provided with a plurality of through holes, and the surfaces of the MOFs water molecule adsorption plates are coated with MOFs material.

3. The portable water capture device based on MOFs according to claim 2, wherein, The multiple MOFs water molecule adsorption plates are arranged parallel to each other, and each MOFs water molecule adsorption plate is arranged perpendicular to the vertical axis of the main shell.

4. The portable water capture device based on MOFs according to claim 2, wherein, The MOFs water molecule adsorption plate is made of a heat-conducting material, and the edge of the MOFs water molecule adsorption plate is connected to the heat-conducting shell.

5. The portable water capture device based on MOFs according to claim 4, wherein, The electric heating element includes an electric heating wire or an electric heating plate arranged in contact with the heat-conducting housing.

6. The portable water capture device based on MOFs according to claim 4, wherein, The heat release area of the TEC element establishes a heat exchange connection with the heat conductive housing.

7. The portable water capture device based on MOFs according to claim 1, characterized in that, The inner wall of the condensation chamber is coated with a hydrophobic coating.

8. The portable water capture device based on MOFs according to claim 1, characterized in that, The water tank is made of transparent glass or transparent plastic. The MOFs-based portable water capture device also includes an ultraviolet lamp arranged outside the water tank for killing microorganisms in the water stored in the water tank. The ultraviolet lamp is electrically connected to the power distribution unit.

9. The portable water capture device based on MOFs according to claim 1, characterized in that, The device further comprises a straw, the top of which extends out of the main shell and the bottom of which extends into the water tank.

10. The portable water capture device based on MOFs according to claim 9, characterized in that, The bottom of the water tank is tilted, and the bottom of the straw corresponds to the lowest point of the bottom of the water tank.

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