Large air water trapping system based on MOFs (Metal-Organic Frameworks)

Abstract

The invention relates to a large-scale air water trapping system based on MOFs, which comprises an electric power storage assembly, a solar cell assembly and an MOFs air water trapping assembly, and is characterized in that the solar cell assembly comprises a solar cell panel and a liquid cooling pipeline; the solar cell panel and the electric power storage assembly are electrically connected with all electric appliances of the system. The MOFs air water trapping assembly comprises: an air suction module; the MOFs water adsorption and desorption module is communicated with the air suction module; the heat exchange module comprises a liquid heat pipeline which is communicated with the liquid cooling pipeline to form a liquid circulation loop and is in heat exchange connection with the MOFs water adsorption and desorption module, and heat exchange liquid is arranged in the liquid circulation loop; the condensation module is communicated with the MOFs water adsorption and desorption module; the circulation module is communicated with the MOFs water adsorption and desorption module and the condensation module to form a gas circulation loop; the water storage module is communicated with the condensation module; the control module is in communication connection with the air suction module, the heat exchange module, the condensation module and the circulation module.

Description

Technical Field

[0001] The invention relates to the technical field of air water capture, and in particular to a large-scale air water capture system based on MOFs. Background Art

[0002] In extremely arid areas such as deserts and Gobi, fresh water resources are extremely scarce, and traditional water sources (such as groundwater and rivers) are often difficult to obtain or are expensive to mine. However, even in the driest air, there is still a certain amount of water vapor, which makes atmospheric water harvesting (AWH) possible. Traditional air water harvesting methods (such as refrigeration condensation and fog collection) are extremely inefficient in low humidity environments and have high energy consumption, making it difficult to meet actual needs.

[0003] Metal-Organic Frameworks (MOFs) materials have become a research hotspot in the field of air water capture due to their ultra-high specific surface area, adjustable pore structure and excellent water adsorption performance. MOFs materials can selectively adsorb water molecules in the air under low humidity conditions, and release the adsorbed water molecules under conditions such as heat, allowing the water molecules to desorb from them, providing a material basis for air or atmospheric water capture. However, in deserts and Gobi environments, there is a lack of supporting infrastructure, a lack of electricity and other equipment operating resources, and manual supervision is difficult, which poses a great challenge to air water capture. Summary of the invention

[0004] The purpose of this application is to provide a large-scale air-water capture system based on MOFs, which is designed to convert solar energy into heat energy and electrical energy. The drive system operates automatically under the control of a control module to achieve automatic air-water capture in deserts, Gobi and other environments to obtain usable fresh water resources.

[0005] In order to achieve the above objectives, the present application provides a large-scale air water capture system based on MOFs, comprising: Power storage components; A solar cell assembly, comprising a solar cell panel electrically connected to the power storage assembly and a liquid cooling pipe connected to the solar cell panel for heat exchange; MOFs air water capture components, including: An air intake module, used for inhaling air; A MOFs water adsorption and desorption module, which is connected to the air intake module and is used to adsorb water molecules from the inhaled air and desorb the water molecules when heated; A heat exchange module, comprising a liquid heat pipe connected to a liquid cooling pipe to form a liquid circulation loop and connected to the MOFs water adsorption and desorption module for heat exchange, wherein the liquid circulation loop is provided with a heat exchange liquid for absorbing heat in the liquid cooling pipe and releasing heat in the liquid heat pipe; A condensation module, which is connected to the MOFs water adsorption and desorption module and is used to condense the desorbed water molecules into liquid water; A circulation module, which is connected to the MOFs water adsorption and desorption module and the condensation module to form a gas circulation loop, and is used to drive air to circulate in the gas circulation loop; A water storage module, which is connected to the condensation module and is used to store the liquid water; A control module, which is communicatively connected to the air intake module, the heat exchange module, the condensation module and the circulation module, and both the solar panel and the power storage component are electrically connected to the air intake module, the heat exchange module, the condensation module, the circulation module and the control module. The control module is used to automatically switch the system between the adsorption mode and the desorption mode, and control the air intake module to work in the adsorption mode and control the heat exchange module, the condensation module and the circulation module to work in the desorption mode.

[0006] Optionally, the heat exchange module further includes a liquid storage container, a liquid circulation pump and an electric control valve which are arranged and connected in the liquid circulation loop. Among them, the liquid circulation pump and the electric control valve are communicatively connected to the control module, and the liquid circulation pump and the electric control valve are also electrically connected to the solar panel and the power storage component.

[0007] Optionally, the MOFs water adsorption and desorption module includes a fixed frame and at least one MOFs water adsorption plate detachably connected to the fixed frame. The MOFs water adsorption plate is provided with through holes for air circulation, and the surface of the MOFs water adsorption plate is attached with MOFs material or the MOFs water adsorption plate is made of MOFs material.

[0008] Optionally, the fixed frame includes 4 fixing plates. The 4 fixing plates are arranged in pairs and parallel and are connected by ends to form a closed annular frame with a rectangular cross-section. At least one fixing plate is detachably connected to the other fixing plates. Fixing grooves are arranged on a group of parallel fixing plates inside the closed annular frame. The MOFs water adsorption plate is rectangular and matches the cross-section of the closed annular frame, and a clamping member for clamping into the fixing groove is arranged on a group of parallel sides of the MOFs water adsorption plate.

[0009] Optionally, the number of the MOFs water adsorption plates is greater than 1, the number of through holes on the MOFs water adsorption plate is greater than 1, and the distance between the axes of the closest through holes on adjacent MOFs water adsorption plates is at least the radius of the through hole.

[0010] Optionally, the number of the MOFs water adsorption plates is greater than 1, the number of through holes on the MOFs water adsorption plate is greater than 1, the shapes of the through holes on each MOFs water adsorption plate are the same and are arranged according to the same spacing and distribution method, and the maximum distance between the axes of the corresponding through holes on each MOFs water adsorption plate does not exceed one-tenth of the diameter of the through hole.

[0011] Optionally, the liquid cooling pipes are arranged in a U-shaped serpentine manner on the backlight side of the solar panels.

[0012] Optionally, the power storage component includes: A housing; A storage battery disposed within the housing; A distribution transformer disposed within the housing, electrically connected to the output terminals of the storage battery and the solar panels, for voltage regulation and distribution of the electrical energy output by the storage battery and the solar panels; A switch disposed on the outer surface of the housing and connected in series to the output circuits of the storage battery and the distribution transformer.

[0013] Optionally, the circulation module includes: A connecting pipe for connecting the condensation module and the MOFs water adsorption and desorption module; A gas circulation pump disposed in the connecting pipe, electrically connected to the solar panels and the power storage component, and communicatively connected to the control module; An electronically controlled three-way valve disposed in the connecting pipe and communicating with the outside, electrically connected to the solar panels and the power storage component, and communicatively connected to the control module; The control module is further configured to, in the desorption mode, control the gas circulation pump to operate, and control the electronically controlled three-way valve to open the gas circulation loop or open the gas passage between the condensation module and the outside, so that when the gas circulation loop is opened, air circulates between the MOFs water adsorption and desorption module and the condensation module, and when the gas passage is opened, the air in the gas circulation loop is discharged.

[0014] Optionally, the system further includes: A water purification module communicating with the condensation module and the water storage module, for purifying the liquid water conveyed by the condensation module.

[0015] Through the above technical solution, the large-scale air-water capture system based on MOFs achieves self-sufficiency in electric energy through the energy storage component and the solar cell component, enabling it to operate independently in environments lacking infrastructure such as deserts. Moreover, it uses clean energy, which is environmentally friendly and pollution-free. The system inhales air from the environment through the MOFs air-water capture component, utilizes the MOFs material in the MOFs water adsorption and desorption module to efficiently adsorb water molecules in the air, and then heats and desorbs through the heat exchange module to form air enriched with water molecules. After being condensed into liquid water by the condensation module, it is stored in the water storage module, providing reliable fresh water resources for arid regions. The entire workflow is automatically regulated by the control module, enabling unattended operation. The unique liquid cooling-liquid heat circulation loop design not only cools the solar panels but also heats the MOFs material, significantly reducing energy consumption; the gas circulation loop design significantly improves the water molecule conversion efficiency, making the system both efficient and energy-saving, perfectly meeting the usage requirements of extreme environments such as deserts.

[0016] Other features and advantages of this application will be described in detail in the subsequent specific implementation section. Brief Description of the Drawings

[0017] In order to more clearly illustrate the specific implementation manners of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific implementation manners or the prior art. Obviously, the following drawings are some implementation manners of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a block diagram of a large-scale air-water capture system based on MOFs shown according to an exemplary embodiment; Figure 2 is a top view of a solar cell component shown according to an exemplary embodiment; Figure 3 is a structural schematic diagram of an energy storage component shown according to an exemplary embodiment; Figure 4 is a structural schematic diagram of a MOFs air-water capture component shown according to an exemplary embodiment; Figure 5 is another structural schematic diagram of a MOFs air-water capture component shown according to an exemplary embodiment; Figure 6 is a front view of a MOFs water adsorption plate fixed to a fixed frame shown according to an exemplary embodiment; Figure 7 is a structural schematic diagram of a MOFs water adsorption plate shown according to an exemplary embodiment; Figure 8It is a schematic partial structure diagram of a clamping member clamped to a fixed card slot shown according to an exemplary embodiment; Figure 9 It is a schematic diagram of the principle of a large-scale air-water capture system based on MOFs shown according to an exemplary embodiment.

[0019] Icon: 10. MOFs air-water capture assembly; 101. Air intake module; 1011. Air inlet protection cover; 1012. Fan; 102. MOFs water adsorption and desorption module; 1021. Fixed frame; 10211. Fixed plate; 10212. Fixed card slot; 1022. MOFs water adsorption plate; 10221. Through hole; 10222. Clamping member; 103. Heat exchange module; 1031. Liquid storage container; 1032. Liquid circulation pump; 1033. Electric control valve; 1034. Liquid heat pipe; 104. Condensation module; 1041. Condensation compressor; 1042. Condenser; 1043. Temporary water tank; 105. Circulation module; 1051. Gas circulation pump; 1052. Electric control three-way valve; 106. Water storage module; 107. Control module; 108. Protection shell; 109. Water purification module; 1091. Filter; 1092. Ultraviolet germicidal lamp; 20. Solar cell assembly; 201. Solar cell panel; 202. Liquid cooling pipe; 2021. Straight pipe section; 2022. U-shaped bending section; 30. Power storage assembly; 301. Shell; 302. Storage battery; 303. Distribution transformer; 304. Switch; 305. Heat dissipation hole; 306. Display screen. Detailed implementation manners

[0020] 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 illustrating the present application, and are not used to limit the present application.

[0021] Figure 1 It is a block diagram of a large-scale air-water capture system based on MOFs shown according to an exemplary embodiment. Refer to Figure 1 and this system includes: Power storage assembly 30; Solar cell assembly 20, including a solar cell panel 201 electrically connected to the power storage assembly 30 and a liquid cooling pipe 202 heat exchange-connected to the solar cell panel 201; MOFs air-water capture assembly 10, including: Air intake module 101 for inhaling air; MOFs water adsorption and desorption module 102, communicated with the air intake module 101, for adsorbing water molecules from the inhaled air and desorbing water molecules when heated; The heat exchange module 103 includes a liquid heat pipe 1034 that is connected to the liquid cooling pipe 202 to form a liquid circulation loop and is heat exchange-connected to the MOFs water adsorption and desorption module 102. A heat exchange liquid for absorbing heat in the liquid cooling pipe 202 and releasing heat in the liquid heat pipe 1034 is provided in the liquid circulation loop. The condensation module 104 is connected to the MOFs water adsorption and desorption module 102 and is used for condensing the desorbed water molecules into liquid water. The circulation module 105 is connected to the MOFs water adsorption and desorption module 102 and the condensation module 104 to form a gas circulation loop, and is used for driving air to circulate in the gas circulation loop. The water storage module 106 is connected to the condensation module 104 and is used for storing the liquid water. The control module 107 is communicatively connected to the air intake module 101, the heat exchange module 103, the condensation module 104, and the circulation module 105. The solar panel 201 and the power storage component 30 are electrically connected to the air intake module 101, the heat exchange module 103, the condensation module 104, the circulation module 105, and the control module 107. The control module 107 is used for controlling the automatic switching of the system between the adsorption mode and the desorption mode, and for controlling the operation of the air intake module 101 in the adsorption mode and the operation of the heat exchange module 103, the condensation module 104, and the circulation module 105 in the desorption mode.

[0022] Specifically, the large-scale air water capture system based on MOFs includes three components, namely, a solar cell component 20 for converting solar energy into electrical energy, a power storage component 30 for storing electrical energy, and a MOFs air water capture component 10 for adsorbing water molecules from the air and desorbing the water molecules into liquid water for storage when heated.

[0023] Among them, referring to Figure 1 and Figure 9 The solar cell component 20 includes a solar panel 201 and a liquid cooling pipe 202. The solar panel 201, also known as a photovoltaic panel or a photovoltaic cell panel, is a thin film of a photoelectric semiconductor that directly converts sunlight into electricity. Multiple solar panels 201 can be laid in sunny locations such as deserts for energy conversion. The solar panel 201 can supply power to the electrical appliances in the large-scale air water capture system based on MOFs, or can be electrically connected to the power storage component 30 to store the excess power in the power storage component 30, and the power storage component 30 can supply supplementary power in case of insufficient light such as at night or on rainy and cloudy days.

[0024] Referring to Figure 2, the liquid cooling pipe 202 is arranged on the backlight side of the solar panel 201 and a heat exchange connection is established. For example, it can be in direct contact with the solar panel 201 or connected to the backlight side of the solar panel 201 through a heat-conducting intermediate member such as a metal member, so that the heat of the solar panel 201 can be conducted to the liquid cooling pipe 202 and absorbed by the heat exchange liquid in the liquid cooling pipe 202, thereby reducing the temperature of the solar panel 201 and improving its energy conversion efficiency. The liquid cooling pipe 202 can be made of a metal with good thermal conductivity and corrosion resistance. The heat exchange liquid is the liquid used for heat exchange, such as water or oil. In addition, part of the sunlight can penetrate the solar panel 201 and be absorbed by the liquid cooling pipe 202. The liquid cooling pipe 202 can be coated with a dark color to improve the absorption efficiency. In addition, in environments such as deserts, the heat in the air can also be conducted to the heat exchange liquid through the liquid cooling pipe 202. Such a setting can, on the one hand, use the sunlight and the heat of the solar panel 201 to heat the heat exchange liquid in the liquid cooling pipe 202 through the liquid cooling pipe 202, so that the heat exchange liquid can be used for subsequent heating of MOFs. On the other hand, it can also reduce the temperature of the solar panel 201 and improve its working efficiency. This innovative thermal coupling design not only saves layout space but also realizes the dual optimization of cooling and heating through cascaded energy utilization, improves the overall energy efficiency, and does not require electric energy for heating or cooling during the process, saving the use of electric energy and being applicable to environments lacking infrastructure such as deserts and gobi.

[0025] See Figure 2 , the liquid cooling pipe 202 can be arranged in a U-shaped serpentine shape on the backlight side of the solar panel 201. Specifically, the liquid cooling pipe 202 can include a plurality of straight pipe segments 2021 and a plurality of U-shaped bending segments 2022 arranged on the backlight side of the solar panel 201. The plurality of straight pipe segments 2021 can be arranged parallel to each other or approximately parallel to each other. The U-shaped bending segments 2022 connect the ports on the same side of two adjacent straight pipe segments 2021. In this way, the length of the liquid cooling pipe 202 arranged on the backlight side of the solar panel 201 can be increased, and the efficiency of the heat exchange liquid absorbing heat and cooling the solar panel 201 can be improved. The liquid cooling pipe 202 and the solar panel 201 can be erected off the ground through a support frame.

[0026] In a possible implementation manner, the power storage component 30 can be an integrated battery - transformer distribution box. See Figure 5 and Figure 9 , optionally, the power storage component 30 includes: a housing 301; a storage battery 302, arranged in the housing 301; The distribution transformer 303 is disposed within the housing 301 and is electrically connected to the output terminals of the storage battery 302 and the solar panel 201, and is used for voltage regulation and distribution of the electric energy output by the storage battery 302 and the solar panel 201; The switch 304 is disposed on the outer surface of the housing 301 and is connected in series in the output circuit of the storage battery 302 and the distribution transformer 303.

[0027] See Figure 3 , the housing 301 of the electricity storage assembly 30 can be in a cube shape. The storage battery 302 and the distribution transformer 303 can be disposed within the housing 301. There can be multiple storage batteries 302 to form a storage battery bank, and there can also be multiple distribution transformers 303 to form a distribution transformer bank. The distribution transformer 303 can be connected between the storage battery 302 and electrical appliances in the large-scale air-water capture system based on MOFs, such as the air intake module 101, the heat exchange module 103, the condensation module 104, and the control module 107, and can also be connected between the solar panel 201 and these electrical appliances, located on the downstream side of the current of the storage battery 302 and the distribution transformer 303 in the circuit where the electrical appliances are located, so as to regulate the electric energy output by the storage battery 302 and the solar panel 201, make its voltage adapt to the corresponding electrical appliances, and distribute the electric energy among the various electrical appliances.

[0028] See Figure 3 , a switch 304 such as a push-button switch can be disposed on the outer surface of the housing 301. By connecting in series in the output circuit where the storage battery 302 and the distribution transformer 303 are located, the closing of this circuit can be controlled. The storage battery 302 can be disposed at the bottom of the inner space of the housing 301, and heat dissipation holes 305 can be provided on the housing 301 near the storage battery 302 for the storage battery 302 to dissipate heat. As Figure 3 shown, the heat dissipation holes 305 can be in a long strip shape. A display screen 306 can also be disposed on the outer surface of the housing 301. By configuring corresponding sensors and control circuits, various parameters of the circuit and the storage battery 302, such as voltage and current magnitude, can be displayed.

[0029] See Figure 1 , the MOFs air-water capture assembly 10 can include an air intake module 101, a MOFs water adsorption and desorption module 102, a heat exchange module 103, a condensation module 104, a circulation module 105, a water storage module 106, and a control module 107. Each module works together to achieve the capture of water molecules in the air and convert them into liquid water for storage. See Figure 4 , the MOFs air-water capture assembly 10 can further include a protective housing 108. Each module of this assembly can be integrally disposed within the protective housing 108 to protect each module and reduce the interference of the external environment on the working process, provide an independent working space, and facilitate maintenance by the staff. To simplify the illustration, Figure 4Some of the modules are not shown, and the front part of the protective case 108 is hidden.

[0030] Among them, the air intake module 101 may include at least one fan 1012. Refer to Figure 4 , the air intake module 101 may include 4 fans 1012. The fan blades are driven by a motor to rotate, and the air outside the MOFs air and water capture assembly 10, that is, outside the above-mentioned protective case 108, is sucked into the protective case 108 to obtain the air in the environment. As Figure 4 , the air intake module 101 may include an air inlet protective cover 1011, which is arranged on the front side of the fan 1012 along the air inlet direction and can be used to block larger stones and animals to protect the internal structure. In addition, the air intake module 101 may further include an air filtering device to filter dust and other particulate matters in the inhaled air to avoid affecting the adsorption efficiency of the MOFs water adsorption and desorption module 102. The air filtering device may be arranged on the air outlet side of the fan 1012, and specifically may include a filter screen, a HEPA (High Efficiency Particulate Air Filter) filter screen, and an activated carbon filter element, which may be arranged in sequence along the gas flow direction. The filter screen may be made of polypropylene to filter larger particulate matters, such as particulate matters with a particle size greater than 10 microns. The HEPA filter screen may further filter particulate matters with a particle size greater than or equal to 0.3 microns, and the activated carbon filter element may adsorb odor molecules and the like in the air.

[0031] Refer to Figure 5 and Figure 6 , optionally, the MOFs water adsorption and desorption module 102 includes a fixed frame 1021 and at least one MOFs water adsorption plate 1022 detachably connected to the fixed frame 1021. Through holes 10221 for air circulation are formed on the MOFs water adsorption plate 1022, and MOFs materials are attached to the surface of the MOFs water adsorption plate 1022 or the MOFs water adsorption plate 1022 is made of MOFs materials.

[0032] In a possible implementation manner, refer to Figure 6 , the fixed frame 1021 includes 4 fixing plates 10211. The 4 fixing plates 10211 are arranged in pairs and parallel and are connected at the ends to form a closed ring-shaped frame with a rectangular cross-section. At least one fixing plate 10211 is detachably connected to the other fixing plates 10211. Fixing slots 10212 are arranged on a group of parallel fixing plates 10211 inside the closed ring-shaped frame. The MOFs water adsorption plate 1022 is rectangular and matches the cross-section of the closed ring-shaped frame, and a clamping member 10222 for clamping into the fixing slots 10212 is arranged on a group of parallel sides of the MOFs water adsorption plate 1022.

[0033] Specifically, the fixed frame 1021 can be formed by connecting four fixing plates 10211 end to end to form a closed ring-shaped frame, that is, the whole frame is a closed ring. Among them, two fixing plates 10211 are parallel to each other, and the other two fixing plates 10211 are parallel to each other. The cross-section surrounded by the four fixing plates 10211 is rectangular, and the air flow direction is perpendicular to this cross-section. See Figure 6 , where at least one fixing plate 10211 is detachably connected to other fixing plates 10211, for example, it can be connected by screws or other means, which is convenient for disassembling the fixing plate 10211 to take out the MOFs water adsorption plate 1022. See Figures 5 to 7 , the shape of the MOFs water adsorption plate 1022 is rectangular and matches the rectangular cross-section of the closed ring-shaped frame, so that the MOFs water adsorption plate 1022 can be inserted into it. The MOFs water adsorption plate can include a plate-shaped base such as a ceramic base, with MOFs material coated on the base, or the MOFs water adsorption plate is integrally formed by pressing MOFs material.

[0034] In order to facilitate the disassembly of the MOFs water adsorption plate 1022, fixing card slots 10212 can be provided on a group of parallel fixing plates 10211. See Figure 8 , the fixing card slots 10212 can be rectangular grooves. See Figures 7 to 8 , on a group of parallel sides of the MOFs water adsorption plate 1022, a clamping member 10222 matching the fixing card slot 10212 is provided. For example, it can also be a rectangular protrusion. The clamping member 10222 of the MOFs water adsorption plate 1022 can be clamped into the fixing card slot 10212 to complete the fixation of the MOFs water adsorption plate 1022 and facilitate the disassembly of the MOFs water adsorption plate 1022. See Figure 5 and Figure 6 , the fixing plate 10211 at the top of the fixed frame 1021 can be detachably connected to other fixing plates 10211 by screws. Fixing card slots 10212 are provided on the left and right side fixing plates 10211. A clamping member 10222 matching the fixing card slot 10212 is provided on a group of parallel sides of the MOFs water adsorption plate 1022. During installation, the fixing plate 10211 at the top can be disassembled, and the clamping member 10222 of the MOFs water adsorption plate 1022 can be aligned with the fixing card slot 10212 on the fixing plate 10211 and inserted into it to complete the installation of the MOFs water adsorption plate 1022.

[0035] Optionally, in a possible implementation manner, the number of the MOFs water adsorption plates 1022 is greater than 1, the number of through holes 10221 on the MOFs water adsorption plate 1022 is greater than 1, and the distance between the axes of the closest through holes 10221 on adjacent MOFs water adsorption plates 1022 is at least the radius of the through hole 10221.

[0036] Specifically, the closest through-hole 10221 can be the through-hole 10221 with the closest center distance. The two closest through-holes 10221 are respectively located on adjacent MOFs water adsorption plates 1022. The axis of the through-hole 10221 is a line perpendicular to the plane where the through-hole 10221 is located and passing through the center of the through-hole 10221. The layouts of the through-holes 10221 on adjacent MOFs water adsorption plates 1022 are different. For each through-hole 10221 on each group of adjacent MOFs water adsorption plates 1022, the axes of the closest through-holes 10221 can be relatively offset by a certain distance, and this distance is at least the radius of the through-hole 10221, so that the center connection line of the through-holes 10221 on adjacent MOFs water adsorption plates 1022 is different from the air flow direction. In this way, after the air flows through the through-holes 10221 of one of the previous-stage MOFs water adsorption plates 1022, it will first contact the solid plate part of the adjacent next-stage MOFs water adsorption plate 1022 under the action of driving force and inertia, then flow along the surface of this MOFs water adsorption plate 1022, and then flow through the through-holes 10221 of this MOFs water adsorption plate 1022. In this way, the contact path of the air with the MOFs material can be extended, and the absorption rate of the MOFs material on the surface of the MOFs water adsorption plate 1022 to the water molecules in the air can be improved.

[0037] Optionally, in another possible implementation manner, the number of the MOFs water adsorption plates 1022 is greater than 1, the number of the through-holes 10221 on the MOFs water adsorption plates 1022 is greater than 1, the shapes of the through-holes 10221 on each MOFs water adsorption plate 1022 are the same and are arranged according to the same spacing and distribution method, and the maximum distance between the axes of the through-holes 10221 at the corresponding positions on each MOFs water adsorption plate 1022 does not exceed one-tenth of the diameter of the through-hole 10221.

[0038] Specifically, referring to Figure 6 and Figure 7 , the layouts of the through-holes 10221 on each MOFs water adsorption plate 1022 are the same. For example, they can be arranged in a matrix manner and the distance between each through-hole 10221 and the adjacent through-holes 10221 above, below, left, and right is the same. The through-holes 10221 on adjacent MOFs water adsorption plates 1022 are aligned or approximately aligned, so that the axes of the through-holes 10221 at the corresponding positions on each MOFs water adsorption plate 1022, that is, the through-holes 10221 at the same position on the surface of the MOFs water adsorption plate 1022, are on a straight line or there is only a small offset, and the offset amount is at most one-tenth of the diameter of the through-hole 10221. Such a setting can reduce the resistance of air flow. In the case where the area of the through-holes 10221 is small and the number is large, and the number of the MOFs water adsorption plates 1022 is large, this setting method can be adopted to make the air flow smoothly.

[0039] Optionally, multiple grooves may be provided on the surface of the MOFs water adsorption plate 1022. The grooves may be in the shape of pinholes, so as to increase the surface area of the MOFs water adsorption plate 1022, thereby increasing the contact area between the MOFs material on its surface and the air, and improving the absorption rate of water molecules in the air. In addition, the MOFs water adsorption and desorption module 102 may also be detachably connected to the protective shell 108 of the MOFs air water capture assembly 10 as shown in Figure 4 , so as to facilitate the overall removal of the MOFs water adsorption and desorption module 102 for replacement or treatment.

[0040] The heat exchange module 103 includes a liquid heat pipe 1034. The liquid heat pipe 1034 is communicated with the liquid cooling pipe 202 of the solar cell assembly 20 to form a liquid circulation loop, and a flowing heat exchange liquid is provided in the liquid circulation loop. The liquid heat pipe 1034 is in heat exchange connection with the MOFs water adsorption and desorption module 102, so as to release heat to the MOFs water adsorption and desorption module 102 to heat the MOFs material therein when the heat exchange liquid that has absorbed heat and increased in temperature flows through, so that the water molecules adsorbed by the MOFs material are desorbed. Continuing with the foregoing example, the liquid heat pipe 1034 may be arranged in the fixed frame 1021 as shown in Figure 5 . For example, it may be located between multiple MOFs water adsorption plates 1022. Multiple liquid heat pipes 1034 may be arranged, or the liquid heat pipe 1034 may be arranged in a folded-back manner to improve the heating effect of the liquid heat pipe 1034. Of course, in possible implementation manners, the liquid heat pipe 1034 may also be provided in the MOFs water adsorption plate 1022 for the heat exchange liquid to flow through to directly heat the MOFs water adsorption plate 1022.

[0041] Optionally, referring to Figure 5 and Figure 9 , the heat exchange module 103 further includes a liquid storage container 1031, a liquid circulation pump 1032, and an electric control valve 1033 that are provided and communicated in the liquid circulation loop. Among them, the liquid circulation pump 1032 and the electric control valve 1033 are communicatively connected to the control module 107, and the liquid circulation pump 1032 and the electric control valve 1033 are also electrically connected to the solar cell panel 201 and the power storage assembly 30.

[0042] Specifically, referring to Figure 9, according to the flowing direction of the heat exchange liquid, the liquid storage container 1031, the liquid circulation pump 1032, the electric control valve 1033, the liquid cooling pipeline 202 and the liquid heating pipeline 1034 can be connected in sequence by using pipelines. In this way, when the liquid circulation pump 1032 and the electric control valve 1033 are opened, the heat exchange liquid flows out of the liquid storage container 1031 and enters the liquid cooling pipeline 202, is heated and then enters the liquid heating pipeline 1034 to release heat, and finally returns to the liquid storage container 1031. The liquid storage container 1031 can include one or more liquid storage barrels. For example, two liquid storage barrels can be set and connected through a valve. The valve can be an electric control valve. The solution in one liquid storage barrel flows out, and the other liquid storage barrel is used for the heat exchange liquid to flow in. In this way, when the valve is opened, the heat exchange module 103 can work normally. When the valve is closed, the heat exchange liquid can be concentrated in the same liquid storage barrel, which is convenient for disassembling the liquid storage barrel to replace the heat exchange liquid. The liquid circulation pump 1032 and the electric control valve 1033 can be communicatively connected with the control module 107 and electrically connected with the solar panel 201 and the power storage component 30. For example, they can be electrically connected with the aforementioned distribution transformer 303.

[0043] See Figure 1 and Figure 9 , the condensation module 104 is connected to the MOFs water adsorption and desorption module 102. The air enriched with water molecules released when the MOFs water adsorption and desorption module 102 is heated can enter the condensation module 104 under the drive of the circulation module 105, and then be condensed into liquid water under the cooling of the condensation module 104. In a possible implementation manner, the condensation module 104 can include a condensation compressor 1041, a condenser 1042, an evaporator, a throttling device, etc. The temperature of the condenser 1042 is reduced through the reverse Carnot cycle to achieve refrigeration. The air enriched with water molecules contacts the condenser 1042 as shown in Figure 9 and is condensed into liquid water, and then the air can be directly discharged out of the system. For example, see Figure 9 , the condensation compressor 1041 can be electrically connected to the solar panel 201 and the power storage component 30. In addition, the condensation compressor 1041 can also be communicatively connected with the control module 107.

[0044] See Figure 1 , the circulation module 105 can be simultaneously connected to the MOFs water adsorption and desorption module 102 and the condensation module 104, and then the three form an air gas circulation loop. Under the driving action of the circulation module 105, the air enriched with water molecules in the MOFs water adsorption and desorption module 102 can enter the condensation module 104. After the air is cooled in the condensation module 104 to obtain liquid water, it returns to the MOFs water adsorption and desorption module 102 under the drive of the circulation module 105, mixes with the newly desorbed air enriched with water molecules, and re-enters the condensation module 104 for cooling, so as to improve the conversion rate of the desorbed water molecules condensed into liquid water, and further increase the output of liquid water.

[0045] The water storage module 106 may include a water storage tank for storing the condensed liquid water. When water is needed, it can be directly taken from the water storage module. Optionally, based on the large-scale air water capture system based on MOFs shown in Figure 1 , combined with Figure 9 , the large-scale air water capture system based on MOFs may further include: A water purification module 109, which is connected to the condensation module 104 and the water storage module 106, and is used to purify the liquid water transported by the condensation module 104.

[0046] In this way, referring to Figure 9 , the liquid water obtained by the condensation module 104 first enters the water purification module 109, and after purification, it is stored in the water storage module 106 to obtain purified fresh water that meets the living use requirements. The water purification module 109 may include a filter 1091 and an ultraviolet germicidal lamp 1092, which are respectively used to filter particulate matter and odor molecules in the water, and kill microorganisms such as bacteria in the water. Referring to Figure 5 , the water purification module 109 may be arranged above the water storage module 106.

[0047] The control module 107 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components, so as to control the coordinated operation of each module, and make the large-scale air water capture system based on MOFs automatically switch between the adsorption mode and the desorption mode respectively.

[0048] The control module 107 is electrically connected to the solar panel 201 and the power storage component 30, and is communicatively connected to the air intake module 101, the heat exchange module 103, the condensation module 104 and the circulation module 105. When the system enters the adsorption mode, the control module 107 controls only the air intake module 101 to work. Then, the air intake module 101 inhales the outside air and transports it to the MOFs water adsorption and desorption module 102, so that the water molecules in the air are adsorbed by the MOFs material in the MOFs water adsorption and desorption module 102, and the dry air is discharged, for example, through the air discharge channel of the condensation module 104.

[0049] When the system enters the desorption mode, the control module 107 controls the heat exchange module 103, the condensation module 104 and the circulation module 105 to work. Among them, the heat exchange module 103 heats the MOFs water adsorption and desorption module 102 through the liquid heat pipeline 1034, so that the adsorbed water molecules are desorbed to form air rich in water molecules, and enter the condensation module 104 under the drive of the circulation module 105, and are cooled and condensed to obtain liquid water, and then the liquid water enters the water storage module 106 for storage.

[0050] Optionally, referring to Figure 1 and Figure 9 , the circulation module 105 includes: A connecting pipeline for connecting the condensation module 104 and the MOFs water adsorption and desorption module 102; A gas circulation pump 1051 is arranged on the connecting pipeline, and is electrically connected to the solar panel 201 and the power storage component 30, and is communicatively connected to the control module 107; An electronically controlled three-way valve 1052 is arranged on the connecting pipeline and communicates with the outside, and is electrically connected to the solar panel 201 and the power storage component 30, and is communicatively connected to the control module 107; The control module 107 is further configured to control the gas circulation pump 1051 to work in the desorption mode, and control the electronically controlled three-way valve 1052 to open the gas circulation loop or open the gas passage between the condensation module 104 and the outside, so that when the gas circulation loop is opened, air circulates between the MOFs water adsorption and desorption module 102 and the condensation module 104, and when the gas passage is opened, the air in the gas circulation loop is discharged.

[0051] Specifically, the connecting pipeline can be used to connect the condensation module 104, the gas circulation pump 1051, the electronically controlled three-way valve 1052 and the MOFs water adsorption and desorption module 102 in sequence, and the electronically controlled three-way valve 1052 also communicates with the outside. In the desorption mode, the control module 107 can control the electronically controlled three-way valve 1052 to first open the gas circulation loop and control the gas circulation pump 1051 to start, so as to suck the air rich in water molecules in the MOFs water adsorption and desorption module 102 into the condensation module 104. The condensed air in the condensation module 104 then returns to the MOFs water adsorption and desorption module 102 through the connecting pipeline and enters the condensation module 104 again for condensation. After repeating this many times, the humidity of the air in the gas circulation loop decreases. The control module 107 can control the electronically controlled three-way valve 1052 to switch from the gas circulation loop to the gas passage, and discharge the air in the condensation module 104 such as the condenser 1042 to the outside through the electronically controlled three-way valve 1052 to Figure 4in the environment outside the protective case 108 shown. For example, in the desorption mode, the control module 107 can first control the opening of the gas circulation loop, and then open the gas passage after running for a preset time or when the air humidity drops to a preset threshold.

[0052] Combined Figure 1 with Figure 9 , the working process of the large-scale air-water capture system based on MOFs is as follows: First, in the desorption mode, only the air intake module 101 works, sucking in air from the outside and transporting it to the MOFs water adsorption and desorption module 102. After the water molecules in the air are adsorbed by the MOFs material therein, they are discharged. After working like this for a period of time, the adsorption of the MOFs material to water molecules reaches a saturated state, and at this time, it can be switched to the desorption mode.

[0053] In the desorption mode, the air intake module 101 can stop working, and the heat exchange module 103 starts to work. The heat exchange liquid is pumped out from the liquid storage container 1031 through the liquid circulation pump 1032 and driven to first enter the liquid cooling pipe 202. Under the action of sunlight, the heat of the solar panel 201, etc., the heat exchange liquid in the liquid cooling pipe 202 is heated, and then the heated heat exchange liquid enters the liquid heat pipe 1034. The liquid heat pipe 1034 exchanges heat with the MOFs water adsorption and desorption module 102 to heat the MOFs material therein, so that water molecules are desorbed to form air rich in water molecules. At the same time, the circulation module 105 and the condensation module 104 work. The electronic control three-way valve 1052 of the circulation module 105 first opens the gas circulation loop, and the gas circulation pump 1051 works to drive the air rich in water molecules in the MOFs water adsorption and desorption module 102 into the condenser 1042 of the condensation module 104. During the process, the condensation compressor 1041 works to cool the condenser 1042, and the water molecules in the air in the condenser 1042 are condensed into liquid water. The air condensed in the condenser 1042 is driven by the gas circulation pump 1051 to re-enter the condenser 1042 of the condensation module 104 through the MOFs water adsorption and desorption module 102. After a period of time, the electronic control three-way valve 1052 switches to the gas passage to discharge the air.

[0054] The condensation module 104 can also include a temporary storage water tank 1043 for temporarily storing the liquid water condensed by the condenser 1042 of the condensation module 104. After that, the liquid water is pumped out from the temporary storage water tank 1043, purified by the purification module 109 and then stored in the water storage module 106.

[0055] During this process, the solar panel 201 converts solar energy into electrical energy during the day. Part of the electrical energy is used to supply the above-mentioned electrical appliances, and the other part is stored in the storage battery 302 of the power storage component 30. When there is insufficient light such as on rainy or cloudy days, the storage battery 302 supplies power as a supplement, and the voltage is adjusted and the electrical energy is distributed through the distribution transformer 303.

[0056] Through the above technical solution, the large-scale air-water capture system based on MOFs realizes self-sufficiency in electrical energy through the power storage component and the solar cell component, enabling it to operate independently in environments lacking infrastructure such as deserts, and using clean energy, which is environmentally friendly and pollution-free. The system inhales air from the environment through the MOFs air-water capture component, uses the MOFs material in the MOFs water adsorption and desorption module to efficiently adsorb water molecules in the air, and then heats and desorbs through the heat exchange module to form air enriched with water molecules. After being condensed into liquid water by the condensation module, it is stored in the water storage module to provide reliable fresh water resources for arid areas. The entire working process is automatically regulated by the control module, enabling unattended operation. The unique liquid cooling-liquid heat circulation loop design not only cools the solar panel but also heats the MOFs material, significantly reducing energy consumption; the gas circulation loop design significantly improves the water molecule conversion efficiency, making the system efficient and energy-saving, and perfectly meeting the usage requirements of extreme environments such as deserts.

[0057] 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.

[0058] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any suitable manner. To avoid unnecessary repetition, the present application does not separately describe various possible combination methods.

[0059] 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 large-scale air-to-water capture system based on MOFs, characterized in that Comprising: A power storage component; A solar cell component, including a solar panel electrically connected to the power storage component and a liquid cooling pipe heat exchange-connected to the solar panel; A MOFs air-water capture component, including: An air intake module for inhaling air; A MOFs water adsorption and desorption module communicated with the air intake module for adsorbing water molecules from the inhaled air and desorbing water molecules when heated; A heat exchange module, including a liquid heat pipe communicated with the liquid cooling pipe to form a liquid circulation loop and heat exchange-connected to the MOFs water adsorption and desorption module, and a heat exchange liquid for absorbing heat in the liquid cooling pipe and releasing heat in the liquid heat pipe is provided in the liquid circulation loop; A condensation module communicated with the MOFs water adsorption and desorption module for condensing the desorbed water molecules into liquid water; A circulation module communicated with the MOFs water adsorption and desorption module and the condensation module to form a gas circulation loop for driving air to circulate in the gas circulation loop; A water storage module communicated with the condensation module for storing the liquid water; A control module is communicatively connected to the air intake module, the heat exchange module, the condensation module and the circulation module, and the solar panel and the power storage component are electrically connected to the air intake module, the heat exchange module, the condensation module, the circulation module and the control module. The control module is used to control the large-scale air-water capture system based on MOFs to automatically switch between an adsorption mode and a desorption mode, and control the air intake module to work in the adsorption mode and control the heat exchange module, the condensation module and the circulation module to work in the desorption mode.

2. The large-scale air-to-water capture system based on MOFs according to claim 1, wherein The heat exchange module further includes a liquid storage container, a liquid circulation pump and an electric control valve provided and communicated in the liquid circulation loop, wherein the liquid circulation pump and the electric control valve are communicatively connected to the control module, and the liquid circulation pump and the electric control valve are also electrically connected to the solar panel and the power storage component.

3. The large-scale air-to-water capture system based on MOFs according to claim 1, wherein, The MOFs water adsorption and desorption module includes a fixed frame and at least one MOFs water adsorption plate detachably connected to the fixed frame. Through holes for air circulation are formed in the MOFs water adsorption plate, and MOFs materials are attached to the surface of the MOFs water adsorption plate or the MOFs water adsorption plate is made of MOFs materials.

4. The large-scale air-water capture system based on MOFs according to claim 3, characterized in that, The fixed frame includes 4 fixing plates. The 4 fixing plates are arranged in pairs and parallel and are connected by ends to form a closed annular frame with a rectangular cross section. At least one of the fixing plates is detachably connected to the other fixing plates. Fixed card slots are provided on a group of parallel fixing plates inside the closed annular frame. The MOFs water adsorption plate is rectangular and matches the cross section of the closed annular frame, and a clamping member for clamping into the fixed card slot is provided on a group of parallel sides of the MOFs water adsorption plate.

5. The large-scale air-to-water capture system based on MOFs according to claim 3, wherein, The number of the MOFs water adsorption plates is more than 1, the number of through holes on the MOFs water adsorption plate is more than 1, and the distance between the axes of the closest through holes on adjacent MOFs water adsorption plates is at least the radius of the through hole.

6. The large-scale air-water capture system based on MOFs according to claim 3, characterized in that, The number of the MOFs water adsorption plates is greater than 1, the number of through holes on the MOFs water adsorption plates is greater than 1, the shapes of the through holes on each MOFs water adsorption plate are the same and arranged according to the same spacing and distribution pattern, and the maximum distance between the axes of the through holes at the corresponding positions on each MOFs water adsorption plate does not exceed one tenth of the diameter of the through holes.

7. The large-scale air-water capture system based on MOFs according to claim 1, wherein The liquid cooling pipes are arranged in a U-shaped serpentine manner on the backlight surface of the solar panel.

8. The large-scale air-water capture system based on MOFs according to claim 1, wherein The power storage component includes: A housing; A storage battery disposed within the housing; A distribution transformer disposed within the housing, electrically connected to the storage battery and the output terminal of the solar panel, for regulating and distributing the electric energy output by the storage battery and the solar panel; A switch disposed on the outer surface of the housing and connected in series in the output circuit of the storage battery and the distribution transformer.

9. The large-scale air-water capture system based on MOFs according to claim 1, characterized in that, The circulation module includes: A connecting pipe for connecting the condensation module and the MOFs water adsorption and desorption module; A gas circulation pump disposed in the connecting pipe, electrically connected to the solar panel and the power storage component, and communicatively connected to the control module; An electronically controlled three-way valve disposed in the connecting pipe and communicating with the outside, electrically connected to the solar panel and the power storage component, and communicatively connected to the control module; The control module is further configured to, in the desorption mode, control the gas circulation pump to operate, and control the electronically controlled three-way valve to open the gas circulation loop or open the gas path between the condensation module and the outside, so that when the gas circulation loop is opened, air circulates between the MOFs water adsorption and desorption module and the condensation module, and when the gas path is opened, the air in the gas circulation loop is discharged.

10. The large-scale air-to-water capture system based on MOFs according to claim 1, characterized in that, The large-scale air-water capture system based on MOFs further includes: A water purification module communicating with the condensation module and the water storage module for purifying the liquid water conveyed by the condensation module.

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