System for taking purified water from natural air

Abstract

The invention relates to a system and a method for extracting purified water from natural air, the system comprises an air heating device, an air purification device for adsorbing particulate matters by using an electric field and a condensing device which are sequentially communicated through fluid, or the system comprises the air purification device for adsorbing particulate matters by using the electric field, the air heating device and the condensing device which are sequentially communicated through fluid, the air heating device utilizes solar energy and / or electric energy to increase the temperature of air; the air purification device for adsorbing the particulate matter through the electric field is used for conducting particulate matter purification on entering air. And the condensing device is used for condensing the heated and particulate matter purified clean air by using room-temperature air to obtain sterile, radiation-free and virus-free clean water.

Description

Technical Field

[0001] The invention belongs to the technical field of air-to-water production, and in particular relates to a system for obtaining pure water from natural air. Background Art

[0002] With the development of industry and the prosperity of commerce, drinking water sources in most cities around the world and in China have been damaged to varying degrees. The tap water system can only guarantee basic supply, and it is difficult to ensure drinking water safety through one company. Due to water pollution, including heavy metal pollution, organic pollution, pesticide pollution, fertilizer pollution, agricultural and breeding pollution, urban liquid waste discharge, etc., the water body has deteriorated and the water body has lost its self-purification ability, making it difficult to ensure drinking water safety.

[0003] Drinking water safety is one of the most important safeguards for human health, and is as important as air quality safety. Distributed water supply is one of the effective means to solve the problem of drinking water safety for residents. Developing air water resources is the main direction of distributed water production. Air water production has been proposed for a long time to ensure the safety of drinking water for residents in water-scarce areas and water-polluted areas.

[0004] Common ways to make water from air include condensation water by compressor refrigeration, compressed air supersaturation water, adsorption water, radiation refrigeration condensation water, and adsorption refrigeration condensation water. Under high temperature and high humidity conditions, compressor refrigeration has a comparative advantage, with fast water production and high efficiency. When it is below 65% RH, the efficiency of compressor refrigeration is lower than that of adsorption water production. At the same time, compressor refrigeration consumes a lot of electricity. One kilowatt-hour of electricity can produce 2 liters of water. 20 liters of water requires 10 kilowatt-hours of electricity, which is relatively high for household electricity consumption.

[0005] Adsorption refrigeration uses water absorbents such as lithium chloride, calcium chloride, magnesium chloride, silica gel, zeolite molecular sieve, and activated carbon to absorb water from the air, and uses electric heating to dehydrate and then condense it into water. The energy consumption is mainly heating energy and cooling energy. At the same time, the chloride water absorbent is highly corrosive, resulting in a short lifespan. Silica gel, zeolite, and activated carbon adsorption water production, because they can adsorb indoor harmful gases such as formaldehyde, benzene, hydrogen sulfide, ammonia, and radon, will increase the health risks of air-to-water production and cannot guarantee drinking safety.

[0006] The cooling power of radiation cooling is 100 watts per square meter, which can meet the water production needs of a family of 15-20 square meters. It is costly and inconvenient to use. It is not mature yet. Compressed air water production is to compress air through an air compressor to increase the air temperature, so that the water content exceeds the saturated water content, and condensation produces water. Due to the high energy consumption and high noise of air compressors, it is impossible to achieve large-scale application of household water production. Summary of the invention

[0007] The present invention provides a system for extracting pure water from natural air, achieving at least one of the following purposes: achieving safe water quality, low energy consumption, no noise and low noise, and stable water supply in all seasons.

[0008] To achieve the above objectives and other related objectives, the present invention provides the following technical solutions:

[0009] According to a first aspect of the present invention, a system for extracting pure water from natural air is provided, the system comprising an air heating device, an air purification device, an air humidification device, and a condensation device, wherein:

[0010] The air heating device utilizes solar energy and / or electrical energy to raise the temperature of the air;

[0011] The air purification device is used to purify the incoming air of particles;

[0012] The air humidifier is provided with a water absorbent, and the air purification device purifies the air entering the air humidifier, and absorbs water in the air purified by the air purification device through the water absorbent; the heated clean air after being processed by the air heating device and the air purification device enters the air humidifier to purge the water-absorbing ...

[0013] The condensing device uses room temperature air to condense the heated and humidified clean air to obtain clean water.

[0014] Optionally, the system comprises an air heating device, an air purification device, an air humidifying device, and a condensing device which are fluidically connected in sequence, or comprises an air purification device, an air heating device, an air humidifying device, and a condensing device which are fluidically connected in sequence, wherein:

[0015] The air heating device utilizes solar energy and / or electrical energy to raise the temperature of the air;

[0016] The air purification device is used to purify the incoming air of particles;

[0017] The air humidifying device is provided with a water absorbent, and the system further comprises another air purifying device, wherein the another air purifying device purifies the air entering the air humidifying device, and absorbs water in the air purified by the another air purifying device through the water absorbent; the heated clean air after being processed by the air heating device and the air purifying device enters the air humidifying device to purge the water absorbent that has absorbed water, and the water in the water absorbent is released into the heated clean air, thereby obtaining heated and humidified clean air.

[0018] The condensing device uses room temperature air to condense the heated and humidified clean air to obtain clean water.

[0019] Optionally, the water absorbent includes an inorganic water absorbent or an organic water absorbent, the inorganic water absorbent includes at least one of zinc chloride, lithium chloride, calcium chloride, magnesium chloride, potassium carbonate, and sodium sulfate, and the organic water absorbent includes at least one of glycerol, polyethylene glycol PEG200, betaine, and proline.

[0020] Optionally, the air purification device is installed in the wall, and outdoor air enters the air purification device for particle purification, removing particles and aerosols containing viruses, bacteria, and radioactive substances in the air to obtain sterile, radiation-free, and virus-free clean air.

[0021] Optionally, the air heating device heats outdoor air to a certain temperature to obtain heated air, the heated air enters the air purification device located in the wall to adsorb particulate matter, disinfects and sterilizes the air to obtain purified air, the heated clean air enters the air humidification device to obtain heated and humidified clean air, the heated and humidified clean air enters the indoor condensing device to perform heat exchange with the indoor room temperature air to obtain clean water.

[0022] Optionally, outdoor air enters the air purification device located in the wall to adsorb particulate matter, and the outdoor air is disinfected and sterilized to obtain purified air. The purified air enters the air heating device in the room, and the air heating device heats the purified air to a certain temperature to obtain heated air. The heated clean air enters the air humidification device to obtain heated and humidified clean air. The heated and humidified clean air enters the condensing device to perform heat exchange with the room temperature air in the room to obtain clean water.

[0023] Optionally, the system further comprises a heating device for heating the water absorbing agent after absorbing water to release water vapor.

[0024] Optionally, the air purification device is an air purification device that uses an electric field to adsorb particulate matter, and the air purification device includes:

[0025] Pre-placement electrode group and adsorption unit;

[0026] Along the gas flow direction, the front electrode group is located in front of the adsorption unit and has a distance from the adsorption unit.

[0027] The front discharge electrode group includes at least one discharge beam connected to a DC high voltage power supply,

[0028] The adsorption unit comprises at least one adsorption electrode and at least one discharge electrode for forming an adsorption electric field, wherein

[0029] A gas flow channel is formed between the discharge electrode and the adsorption electrode to allow the gas to pass through and perform the electric field treatment. The distances between adjacent discharge electrodes and adsorption electrodes are the same.

[0030] Optionally, the discharge beam satisfies one or both of the following conditions:

[0031] (1) The discharge beam comprises n metal wires and / or conductive non-metal wires, wherein n is greater than or equal to 10,000;

[0032] (2) The discharge beam comprises a plurality of metal wires and / or conductive non-metal wires, wherein

[0033] The diameter of the metal wire is in the range of 0.1-100 um, or the diameter of the conductive non-metal wire is in the range of 0.1-100 um.

[0034] Optionally, the metal wire includes at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, and nickel alloy wire, or the conductive non-metallic wire is carbon fiber wire.

[0035] Optionally, the single fiber diameter of the stainless steel fiber filament is in the range of 5-100 um, or the single fiber diameter of the carbon fiber filament is in the range of 5-100 um.

[0036] Optionally, one end of the plurality of metal wires and / or the conductive non-metal wires are fixed together to form a fixed end, and the other end is a free end facing the adsorption unit, wherein the front discharge electrode group also includes a support plate, and the fixed end of the discharge beam is fixed to the support plate.

[0037] Optionally, the front discharge electrode group includes at least one discharge electrode group, and the discharge cluster includes a plurality of circumferentially arranged discharge beams, wherein

[0038] When the front discharge electrode group includes a plurality of discharge electrode groups with different radii, the plurality of discharge electrode groups are coaxially arranged.

[0039] Beneficial effects of the present invention:

[0040] The system and method for obtaining pure water from air provided by the present invention do not require compressor refrigeration, but realize condensation water production, which greatly reduces energy consumption; and utilizes solar energy, which greatly reduces heating energy consumption.

[0041] The clean water produced by the present invention will not introduce harmful gases, harmful particles and other impurities, and the water quality is safe and guaranteed.

[0042] The invention can remove all the particulate matter and aerosol in the air, wherein the particulate matter includes viruses, bacteria, and aerosol containing radiation, and obtain sterile, radiation-free, and virus-free clean water.

[0043] The system and method provided by the present invention also have the following effects:

[0044] Indoor radioactive gas radon and radioactive aerosols produced by radon can be greatly reduced by particle removal. Radon gas is the second largest cause of lung cancer after smoking. According to a survey, 12% of lung cancer is caused by indoor radon gas. The present invention purifies air particles through an electric field to reduce radioactive dust in the air, thereby greatly reducing or completely removing indoor radioactive gas radon and radioactive gas produced by radon. The present invention can reduce the probability of lung cancer.

[0045] The present invention realizes obtaining sterile, radiation-free and virus-free pure water indoors from outdoor natural air after particle adsorption, heating and cooling treatment, or obtaining sterile, radiation-free and virus-free pure water indoors from outdoor natural air after heating, particle adsorption and cooling treatment.

[0046] The present invention absorbs water vapor in the air through a water absorbent, provides more water vapor sources for air water production, and improves the output of water production.

[0047] The present invention reduces the relative humidity of the air by heating the air, and increases the absolute water content in the clean air by humidifying the clean air, thereby achieving the goal of preparing pure water without using a refrigerant or a low-temperature cold source. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic diagram of the structure of the system for extracting pure water from natural air involved in Example 1 of the present invention.

[0049] Figure 2 This is a schematic diagram of the structure of the system for extracting pure water from natural air involved in Example 2 of the present invention.

[0050] Figure 3 This is a schematic diagram of the structure of the system for extracting pure water from natural air involved in Example 3 of the present invention.

[0051] Figure 4 This is a schematic diagram of the structure of the system for extracting pure water from natural air involved in Example 4 of the present invention.

[0052] Figure 5 It is a cross-sectional schematic diagram of the air purification device involved in Example 5 of the present invention.

[0053] Figure 6 It is a three-dimensional schematic diagram of an adsorption unit according to an implementation mode involved in Example 5 of the present invention.

[0054] Figure 7 It is a structural schematic diagram of the pre-placement electrode group in Example 7 of the present invention.

[0055] Figure 8 Schematic diagram of the discharge beam in Example 7 of the present invention. DETAILED DESCRIPTION

[0056] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0057] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification, so that people familiar with this technology can understand and read them, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover. At the same time, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. quoted in this specification is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0058] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0059] Example 1

[0060] Reference Figure 1 The present embodiment provides a system 1 for extracting pure water from natural air, comprising an air purification device 11 for adsorbing particulate matter by electric field, an air heating device 12, and a condensing device 13 which are fluidically connected in sequence, wherein the air heating device 12 uses solar energy and / or electric energy to increase the temperature of the air; the air purification device 11 for adsorbing particulate matter by electric field is used to purify the incoming air of particulate matter; the condensing device 13 uses room temperature air to condense the clean air after heating and particulate matter purification to obtain clean water.

[0061] In this embodiment, the air heating device 12 includes a container 121 and an air duct 122 arranged in the container 121. Liquid is filled between the container 121 and the air duct 122. Solar energy and / or electric energy are used to increase the temperature of the liquid, so that the heat of the liquid is transferred to the air in the air duct 122, thereby increasing the temperature of the air.

[0062] In some embodiments, the liquid in the air warming device 12 is water.

[0063] In some embodiments, the air warming device 12 includes a solar air heater and / or an electric air heater.

[0064] In this embodiment, the condensing device 13 includes a container 131 and an air duct 132 arranged in the container 131. The space between the container 131 and the air duct 132 is filled with room temperature air. The clean air that has been heated and purified of particulate matter and enters the condensing device 13 exchanges heat with the room temperature air, so that the water vapor in the clean air is condensed to obtain clean water; the clean and dry air enters the room to provide oxygen and heating needs.

[0065] In this embodiment, an air purification device 11 for adsorbing particles with an electric field is installed in a wall, and outdoor air enters the air purification device 11 for adsorbing particles with an electric field to purify particles, thereby removing particles and aerosols containing viruses, bacteria, and radiation in the air to obtain sterile, radiation-free, and virus-free clean air.

[0066] In this embodiment, the air heating device 12 and the condensing device 13 are located indoors.

[0067] In this embodiment, outdoor air enters the air purification device 11 located in the wall, which uses an electric field to absorb particulate matter, to absorb particulate matter, sterilize and purify the air to obtain purified air, and the purified air enters the air duct 122 in the container 121 of the indoor air heating device 12. The air heating device 12 uses solar energy and / or electric energy to heat the liquid in the container 121, and the heated liquid exchanges heat with the purified air in the air duct 122, and transfers the heat to the clean air in the air duct 122 through the air duct wall, thereby increasing the clean air. The temperature of the clean air is greater than the temperature of the room temperature air; the purified and heated air then enters the air duct 132 in the container 131 of the condensing device 13, and the room temperature air in the room is passed into the condensing device 13, so that the room temperature air is filled between the container 131 and the air duct 132, and the purified and heated clean air in the air duct 132 exchanges heat with the room temperature air, so that the water vapor in the clean air is condensed to obtain clean water, thereby achieving sterile, radiation-free and virus-free pure water indoors after particulate adsorption, heating and cooling treatment from outdoor natural air.

[0068] This embodiment also provides a method for obtaining pure water from natural air, comprising the following steps:

[0069] S21: Air purification

[0070] The outdoor air is passed into the electric field of the air purification device 11 which absorbs particles by electric field to purify the particles, and the air is sterilized and purified to obtain purified clean air;

[0071] S22: Air heating

[0072] The purified clean air is introduced into the room and passed into the air heating device 12, and the liquid in the container 121 is heated by solar energy and / or electric energy. The heated liquid exchanges heat with the clean air in the air duct 122, so that the heat of the liquid is transferred to the clean air, the temperature of the clean air is increased, and the heated clean air is obtained. The clean air is sterile, radiation-free and virus-free clean gas;

[0073] S23: Air condensation

[0074] The clean air after the temperature increase and particle purification after step S22 enters the condensing device 13, and the indoor air is passed into the container 131 of the condensing device 13. In the condensing device 13, the clean air after purification and temperature increase in the air duct 132 is heat-exchanged with the room temperature air in the container 131, and clean water is obtained after condensation. The clean water is sterile, radiation-free, and virus-free pure water. The clean and dry air enters the room to provide oxygen and heating needs.

[0075] This embodiment realizes that outdoor natural air is subjected to particle adsorption, heating and cooling treatment to obtain sterile, radiation-free and virus-free pure water indoors.

[0076] Example 2

[0077] Reference Figure 2 The present embodiment provides a system 2 for extracting pure water from natural air, comprising an air heating device 22, an air purification device 21 for adsorbing particulate matter by an electric field, and a condensing device 23, which are fluidically connected in sequence, wherein the air heating device 22 uses solar energy and / or electrical energy to increase the temperature of the air; the air purification device 21 for adsorbing particulate matter by an electric field is used to purify the incoming air of particulate matter; the condensing device 23 uses room temperature air to condense the clean air after heating and particulate matter purification to obtain clean water.

[0078] In this embodiment, the air heating device 22 includes a container 221 and an air duct 222 arranged in the container 221. Liquid is filled between the container 221 and the air duct 222. Solar energy and / or electric energy are used to increase the temperature of the liquid, so that the heat of the liquid is transferred to the air in the air duct 222 through the air duct wall, thereby increasing the temperature of the air.

[0079] In some embodiments, the liquid in the air warming device 22 is water.

[0080] In some embodiments, the air warming device 22 includes a solar air heater and / or an electric air heater.

[0081] In this embodiment, the condensing device 23 includes a container 231 and an air duct 232 arranged in the container 231. The container 231 and the air duct 232 are filled with room temperature air. The clean air that has been heated and purified of particulate matter and enters the condensing device 23 is heat exchanged with the room temperature air, so that the water vapor in the clean air is condensed to obtain clean water; the remaining clean and dry air enters the room to provide oxygen and heating needs.

[0082] In this embodiment, the air heating device 22 is located outdoors, and the condensing device 23 is located indoors. The air purification device 21 for adsorbing particles with an electric field is installed in the wall. The outdoor air enters the air heating device 22 and is heated before entering the air purification device 21 for adsorbing particles with an electric field located in the wall for particle purification. Viruses, bacteria, and radioactive particles and aerosols in the air are removed to obtain sterile, radiation-free, and virus-free clean air. The heated and purified clean air enters the condensing device 23 located indoors for condensation to obtain pure water.

[0083] In this embodiment, outdoor natural air enters the air duct 2122 in the container 221 of the air heating device 22, and the air heating device 22 uses solar energy and / or electric energy to heat the liquid in the container 221, and the heated liquid exchanges heat with the air in the air duct 2122, and transfers heat to the air in the air duct 222, thereby raising the temperature of the air (greater than the temperature of the room temperature air); the heated air enters the air purification device 21 located in the wall body for adsorbing particles with an electric field to adsorb particles, and sterilizes and purifies the air to obtain purified air, and the heated and purified air then enters the air duct 232 in the container 231 of the condensing device 23 located indoors, and the room temperature air in the room enters the condensing device 23, so that the room temperature air is filled between the container 231 and the air duct 232, and the purified and heated clean air in the air duct 232 exchanges heat with the room temperature air, so that the water vapor in the clean air is condensed to obtain clean water. It is achieved that sterile, radiation-free and virus-free pure water is obtained indoors after the outdoor natural air is heated, adsorbed and cooled.

[0084] This embodiment also provides a method for obtaining pure water from natural air, comprising the following steps:

[0085] S11: Air heating

[0086] The natural air obtained from the outdoors is introduced into the air heating device 22, and the liquid in the container 221 is heated by using solar energy and / or electric energy. The heated liquid exchanges heat with the natural air in the air pipe 222, so that the heat of the liquid is transferred to the air, the temperature of the natural air is increased, and the heated air is obtained;

[0087] S12: Air purification

[0088] The air heated in step S11 is passed into the electric field of the air purification device 21 located in the wall for adsorbing particles by electric field to purify the particles, and the air is sterilized and sterilized to obtain the purified clean air, which is a clean gas without sterility, radiation or virus;

[0089] S13: Air condensation

[0090] The clean air after the treatment in step S12 enters the air duct 232 of the condensing device 23 located in the room, and the room temperature air in the room is passed into the condensing device 23. The clean air in the air duct 232 performs heat exchange with the room temperature air, so that the water vapor in the clean air is condensed to obtain clean water, which is sterile, radiation-free and virus-free pure water. The remaining is clean and dry air, which can be discharged into the room to provide oxygen and heating needs.

[0091] This embodiment realizes obtaining sterile, radiation-free and virus-free pure water indoors from outdoor natural air after heating, particle adsorption and cooling.

[0092] Example 3

[0093] Reference Figure 3 This embodiment provides a system 3 for extracting pure water from natural air, which adds an air purification device 14 and an air humidification device 15 for adsorbing particulate matter using an electric field on the basis of the system 1 provided in the embodiment 1. The air purification device 11, the air heating device 12, the air humidification device 15, and the condensation device 13 are fluidically connected in sequence.

[0094] The air enters the air purification device 14, which is the same as the air purification device 11 in Example 1, and uses an electric field to purify the air of particles. The air can be indoor air or outdoor air. In other embodiments, the air purification device 14 can also be different from the air purification device 11 in Example 1.

[0095] The clean air purified by the air purification device 14 enters the air humidification device 15, in which a water absorbent is provided, and water in the clean air is collected by the water absorbent; when the water absorbent absorbs water to a certain extent, the heated clean air treated by the air heating device 12 enters the air purification device 14 to purge the water absorbent in the air humidification device 15, so that the water in the water absorbent is released, and the released water vapor is mixed with the clean air to humidify the clean air, obtain heated and humidified clean air, realize moisture exchange, increase the absolute water content in the clean air, and the heated and humidified clean air enters the condensation device 13 for condensation to obtain clean water. The same part as in Example 1 is not repeated.

[0096] In other embodiments, when the water absorbent in the air humidifying device 15 absorbs water to a certain extent, the water absorbent can enter the hot water type humidifying device for heating. After the water absorbent is heated by the hot water type humidifying device and the heated clean air processed by the air heating device 12 is purged and heated, the water absorbent releases water vapor, and the water vapor humidifies the heated clean air. The water absorbent circulates continuously between the air humidifying device 15 and the hot water type humidifying device, that is, when the water absorbent in the hot water type humidifying device releases water vapor, it can absorb water when entering the air humidifying device 15, but there is no air exchange between the air humidifying device 15 and the hot water type humidifying device, ensuring that the water vapor entering and mixing with the heated clean air is all water vapor.

[0097] In other embodiments, the air heating device 12 is a solar air heater, and the hot water prepared by solar energy in the solar air heater provides thermal energy for the hot water type humidification device to heat the water absorbent. Preferably, the heated hot water of the solar air heater is greater than 45°C.

[0098] In the present invention, it is required that the water absorbent cannot absorb harmful gases, cannot have volatile components, cannot be toxic, and the critical relative humidity is between 30% and 75%. In some embodiments, the water absorbent includes an inorganic water absorbent or an organic water absorbent. Preferably, the inorganic water absorbent includes at least one of zinc chloride, lithium chloride, calcium chloride, magnesium chloride, potassium carbonate, and sodium sulfate. Preferably, the organic water absorbent includes at least one of glycerol, polyethylene glycol PEG200, betaine, and proline.

[0099] The water absorption and water release performance of the above-mentioned water absorbent is described below in combination with test data:

[0100] 1. Water absorption speed experiment

[0101] The experimental results of water absorption of 10 g of different water absorbents at 25° C. and different humidity for 24 hours are shown in Table 1. In Table 1, 10 g of water absorbent is the amount of pure substance converted without water, for example, 10 g is the amount of anhydrous salt.

[0102] Table 1

[0103]

[0104] As can be seen from Table 1, the water absorbing capacity of the water absorbent in Table 1 is relatively strong. Except for sodium sulfate, which absorbs less than 10% of water per day, the others are 17-103% of their own weight, which can achieve the purpose of obtaining moisture from the air, ensure the availability of air water sources, realize the increase of absolute water content in the air heating and humidification stage, and provide sufficient water vapor source for condensation.

[0105] 2. Water release speed experiment

[0106] Table 2 shows the water loss of 10g of water absorbent after absorbing 10g of water at 80℃ for 2 hours with circulating air in an oven.

[0107] Table 2

[0108]

[0109]

[0110] It can be seen from Table 2 that under the heating condition of 80 degrees Celsius, the amount of water vapor that can be taken away by the water absorbent by the air reaches 21%-100% of its own weight, which satisfies the heating and humidification stage and can enter the air at a lower temperature, making the air-to-water production possible.

[0111] This embodiment also provides a method for obtaining pure water from natural air, comprising the following steps:

[0112] S21: Air purification

[0113] The outdoor air is passed into the electric field of the air purification device 11 which absorbs particles by electric field to purify the particles, and the air is sterilized and purified to obtain purified clean air;

[0114] S22: Air heating

[0115] The purified clean air is introduced into the room and passed into the air heating device 12, and the liquid in the container 121 is heated by solar energy and / or electric energy. The heated liquid exchanges heat with the clean air in the air duct 122, so that the heat of the liquid is transferred to the clean air, the temperature of the clean air is increased, and the heated clean air is obtained. The clean air is sterile, radiation-free and virus-free clean gas;

[0116] S24: Purification and air humidification

[0117] In the air purification device 14, the air is passed into an electric field to purify particles, and the air is sterilized and sterilized to obtain clean air. In the air humidification device 15, water in the clean air is absorbed by a water absorbent, and the heated clean air obtained by the air heating device 12 enters the air humidification device 15, and the water absorbent is purged to release the clean water in the water absorbent to obtain clean water vapor, so that the clean air is humidified.

[0118] S23: Air condensation

[0119] The humidified clean air after the temperature increase and particle purification after step S24 enters the condensing device 13, and the indoor air is passed into the container 131 of the condensing device 13. In the condensing device 13, the clean air after purification and temperature increase in the air duct 132 is heat-exchanged with the room temperature air in the container 131, and clean water is obtained after condensation. The clean water is sterile, radiation-free, and virus-free pure water. The remaining is clean and dry air, which can be discharged into the room to provide oxygen and heating needs.

[0120] In the embodiment, after the air is purified by particulate matter adsorption, a water absorbent is used to absorb water and lose water to obtain clean water vapor, which is then condensed together with other clean air after purification and heating, thereby increasing the water content in the clean air and improving the output of pure water.

[0121] Example 4

[0122] Reference Figure 4 This embodiment provides a system 4 for extracting pure water from natural air. On the basis of the system 2 provided in Example 2, an air purification device 24 and an air humidification device 25 that use an electric field to adsorb particulate matter are added. The air heating device 22, the air purification device 21, the air humidification device 25, and the condensation device 23 are fluidically connected in sequence.

[0123] In this embodiment, the air purification device 24, the air humidification device 25, and the heating device 26 are respectively the same as the air purification device 14 and the air humidification device 15 in Example 3. The water absorbent in the air humidification device 25 and the air humidification device 15 may be the same or different, and the same parts will not be repeated.

[0124] This embodiment also provides a method for obtaining pure water from natural air, comprising the following steps:

[0125] S11: Air heating

[0126] The natural air obtained from the outdoors is introduced into the air heating device 22, and the liquid in the container 221 is heated by using solar energy and / or electric energy. The heated liquid exchanges heat with the natural air in the air pipe 222, so that the heat of the liquid is transferred to the air, the temperature of the natural air is increased, and the heated air is obtained;

[0127] S12: Air purification

[0128] The air heated in step S11 is passed into the electric field of the air purification device 21 located in the wall for adsorbing particles by electric field to purify the particles, and the air is sterilized and sterilized to obtain the purified clean air, which is a clean gas without sterility, radiation or virus;

[0129] S14: Purification and air humidification:

[0130] In the air purification device 24, the air is passed into the electric field to purify the particles, and the air is sterilized and purified to obtain the purified clean air; in the air humidification device 25, the clean air is absorbed by the water absorbent.

[0131] In the air purification device 24, the air is passed through an electric field to purify particles, and the air is sterilized and sterilized to obtain clean air. In the air humidification device 25, water in the clean air is absorbed by a water absorbent. The heated clean air obtained by the air purification device 21 enters the air humidification device 25, and the water absorbent is purged to release the clean water in the water absorbent to obtain clean water vapor, so that the clean air is humidified.

[0132] S13: Air condensation

[0133] The heated pure humidified clean air after the treatment in step S14 enters the air duct 232 located in the condensing device 23, and the room temperature air in the room is passed into the condensing device 23. The clean air in the air duct 232 is heat-exchanged with the room temperature air, so that the water vapor in the clean air is condensed to obtain clean water, which is sterile, radiation-free and virus-free pure water. The remaining is clean and dry air, which can be discharged into the room to provide oxygen and heating needs.

[0134] In this embodiment, after the air is purified by particulate matter adsorption, a water absorbent is used to absorb and lose water to obtain clean water vapor, which is then mixed with other purified and heated clean air and condensed, thereby increasing the water content in the clean air and improving the output of pure water.

[0135] Example 5

[0136] The first embodiment of the present invention provides an air purification device that can efficiently adsorb nano-sized particles, which include not only dust but also viruses and bacteria with a size of tens to hundreds of nanometers. Figure 5 The air purification device 200 includes a front discharge electrode group 220 and an adsorption unit 230. Along the gas flow direction (the direction of arrow A), the front discharge electrode group 220 is located in front of the adsorption unit 230 and has a distance from the adsorption unit 230. The front discharge electrode group 230 includes at least one discharge beam 221 connected to a DC high voltage power supply.

[0137] Through such a design, the discharge beam 221 in the front discharge electrode group 220 discharges to charge the particles in the gas, thereby improving the charging efficiency of the particles; the charged particles enter the adsorption unit 230 at the rear end for purification treatment, and the charged particles in the adsorbed gas are on the adsorption electrode. The particles include but are not limited to pollutants such as viruses, bacteria, and radioactive aerosols. After purification treatment, the particles and aerosols containing viruses, bacteria, and radioactive substances in the gas are removed to obtain sterile, radiation-free, and virus-free clean gas, thereby achieving the effect of purifying the gas.

[0138] In one embodiment of the present invention, referring to Figure 5 The adsorption unit 230 includes at least one grounded adsorption electrode 231 and at least one discharge electrode 232 for forming an adsorption electric field.

[0139] Through the design of the present invention, voltage is applied between the adsorption electrode and the discharge electrode, so that the adsorption performance of the adsorption unit is more stable.

[0140] In one embodiment of the present invention, the gas processing device includes a power source 1 and a power source 2, the two ends of the power source 1 are electrically connected to the discharge beam and the adsorption electrode respectively, and the two ends of the power source 2 are electrically connected to the discharge electrode and the adsorption electrode respectively, wherein the adsorption electrode is grounded. It can be understood that the discharge beam is electrically connected to the negative electrode of the power source 1, the adsorption electrode is electrically connected to the positive electrode of the power source 1, the discharge electrode is electrically connected to the negative electrode of the power source 2, and the adsorption electrode is also electrically connected to the positive electrode of the power source 2, wherein the adsorption electrode is grounded.

[0141] In one embodiment of the present invention, referring to Figure 5The adsorption electrode 231 and the discharge electrode 232 are both hollow tubes with different diameters. The discharge electrode 232 and the adsorption electrode 231 are coaxially mounted and are alternately arranged in sequence from the axis to the periphery. The vertical distances between the discharge electrode 232 and the adsorption electrode 231 are the same, and a gas flow channel is formed between the discharge electrode 232 and the adsorption electrode 231 to allow gas to pass through for electric field treatment.

[0142] Specifically, the cross section of the hollow tube can be a polygon, referring to Figure 6 , the cross-section of the hollow tube can be circular.

[0143] For example, refer to Figure 6 , the adsorption unit 100 includes a discharge electrode group and an adsorption electrode group for forming an electric field. In the embodiment, the discharge electrode group includes a discharge electrode 11 and a discharge electrode 12, and the adsorption electrode group includes an adsorption electrode 21, an adsorption electrode 22, and an adsorption electrode 23. Both the discharge electrode group and the adsorption electrode group include cylinders of different diameters. A plurality of cylinders are coaxially mounted and staggered inside and outside, and from inside to outside, they are the adsorption electrode 21, the discharge electrode 11, the adsorption electrode 22, the discharge electrode 12, and the adsorption electrode 23. Among them, the distances between the adsorption electrode 21, the discharge electrode 11, the adsorption electrode 22, the discharge electrode 12, and the adsorption electrode 23 are the same. That is, the adjacent cylinder walls are different electrodes, ensuring that the distance height between each cylindrical electrode is consistent. A gas flow channel 31 is formed between the adsorption electrode 21 and the discharge electrode 11, a gas flow channel 32 is formed between the discharge electrode 11 and the adsorption electrode 22, a gas flow channel 33 is formed between the adsorption electrode 22 and the discharge electrode 12, and a gas flow channel 34 is formed between the discharge electrode 12 and the adsorption electrode 23.

[0144] Preferably, the polygon is a hexagon or a rectangle, preferably, the hexagon is a regular hexagon and the rectangle is a square.

[0145] Specifically, refer to Figure 5 , multiple discharge electrodes 232 are conductively connected to form a whole as a discharge electrode, and multiple adsorption electrodes 231 are conductively connected to form a whole as an adsorption electrode. For example, multiple first conductive straight rods 2321 are used to conductively connect multiple discharge electrodes 232 into a whole, and multiple second conductive straight rods 2311 are used to conductively connect multiple adsorption electrodes 231 into a whole, the first conductive straight rods 2321 and the second conductive straight rods 2311 are both arranged perpendicular to the axis of the cylinder, the first conductive straight rods 2321 and the second conductive straight rods 2311 are both made of conductive materials, one end of the first conductive straight rod 2321 is connected to the outer wall of the innermost discharge electrode, and the other end is connected to the inner wall of the outermost discharge electrode, one end of the second conductive straight rod 2311 is connected to the outer wall of the innermost adsorption electrode, and the other end is connected to the inner wall of the outermost adsorption electrode, and the outermost adsorption electrode is grounded.

[0146] In one embodiment of the present invention, referring to Figure 5, the flow rate of the gas flowing through the air purification device 200 for electric field treatment is in the range of 0.2-2.0 m / s. Preferably, the flow rate of the gas flowing through the air purification device 200 for electric field treatment is in the range of 1 m / s.

[0147] In the gas particle purification system provided in this embodiment, the gas can be removed from micron-sized and nano-sized particles by passing through the air purification device, and the removal effect of particles larger than 100 nanometers can reach more than 99.99%. After the gas is purified by the air purification device, sterile, radiation-free and virus-free clean gas can be obtained.

[0148] Example 6

[0149] like Figure 5 As shown, this embodiment provides a pre-discharge electrode group, which can be used in the air purification device in Example 5. The same parts of this embodiment and Example 5 are not repeated, and only the different parts are described. The pre-discharge electrode group 220 includes at least one discharge beam 221, and the discharge beam 221 includes a plurality of metal wires and / or conductive non-metallic wires (discharge material). One end of the plurality of metal wires and / or non-metallic wires is fixed together to form a fixed end, and the other end is a free end. The plurality of metal wires and / or non-metallic wires at the free end are in a dispersed state. The pre-discharge electrode group 220 also includes a support plate 222, and the fixed end of the discharge beam 221 is fixed on the support plate 222, and the support plate 222 is made of a conductive material. The discharge beam of the front discharge electrode group is used for discharge after voltage is applied. The discharge beam 221 is fixed on a conductive support plate 222. Under this design, one or more discharge beams are fixed, and secondly, when the support plate is electrically connected to one pole of the DC power supply, the discharge beam 221 is also connected to the DC power supply. In the case of multiple discharge beams, multiple discharge beams can be connected to one power supply at the same time, and the structure is simple and convenient.

[0150] In one embodiment of the present invention, referring to Figure 5 , the discharge beam 221 includes n metal wires and / or conductive non-metal wires, wherein n is greater than or equal to 10,000; preferably, it includes more than 5,000 metal wires and / or conductive non-metal wires; preferably, it includes more than 10,000 metal wires and / or conductive non-metal wires; preferably, it includes 10,000-200,000 metal wires and / or conductive non-metal wires; preferably, it includes 10,000-80,000 metal wires and / or conductive non-metal wires. Typical but non-limiting numbers of metal wires and / or conductive non-metal wires are 1,000, 2,000, 3,000, 4,000, 5,000, 6,000, 8,000, 10,000, 20,000, 50,000, 150,000, 200,000, 250,000, 300,000, 400,000 or 500,000.

[0151] Through such a design, a discharge bundle composed of thousands of metal wires and / or conductive non-metallic wires is fixed on the support plate, similar to a brush. The discharge bundle adopts corona discharge, and the tip of each wire at the free end is a discharge point, which significantly improves the discharge effect and effectively reduces the generation of ozone to almost no level. In the present invention, after testing, under the same purification efficiency requirements, compared with an electrode rod or electrode wire and an adsorption unit for gas particulate matter purification, when the pre-discharge electrode group of the present invention is combined with the same adsorption unit, the voltage required to be applied by the pre-discharge electrode group of the present invention is much smaller than the voltage required by an electrode rod or electrode wire, which has the advantages of low energy consumption and low cost.

[0152] In one embodiment of the present invention, the diameter of the metal wire is in the range of 0.1-100um; preferably, the diameter of the metal wire is in the range of 5-100um; typical but non-limiting diameters of the metal wire are: 0.1um, 0.5um, 1um, 2um, 3um, 4um, 5um, 10um, 12um, 15um, 20um, 3um, 40um, 50um, 60um, 70um, 80um, 90um, or 100um. For example, the metal wire includes but is not limited to at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, and nickel alloy wire; the metal wire includes stainless steel fiber wire, the single fiber diameter of the stainless steel fiber wire can be in the range of 0.1-100um, and the single fiber diameter of the stainless steel fiber wire can be in the range of 5-100μm, and the carbon content in the discharge material is 90-99.9%, and the typical but non-limiting carbon content is 90%, 93%, 96% or 99%.

[0153] In one embodiment of the present invention, the diameter of the conductive non-metallic wire is in the range of 0.1-100um; preferably, the diameter of the conductive non-metallic wire is in the range of 5-100um; typical but non-limiting diameters of the conductive non-metallic wire are: 0.1um, 0.5um, 1um, 2um, 3um, 4um, 5um, 10um, 12um, 15um, 20um, 3um, 40um, 50um, 60um, 70um, 80um, 90um, or 100um. For example, the conductive non-metallic wire includes but is not limited to carbon fiber wire, and the single fiber diameter of the carbon fiber wire can be in the range of 0.1-100um; the single fiber diameter of the carbon fiber wire can be in the range of 5-100μm.

[0154] In the present invention, the discharge beam of the front electrode group is used for discharge after voltage is applied, so that the gas is ionized and the particulate matter in the gas is charged. If there is an adsorption unit behind it, the charged particulate matter enters the adsorption unit and is adsorbed, thereby playing a role in purifying the particulate matter. When the radial cross-sectional area of ​​the adsorption unit is small, the front electrode group can include a discharge beam, and the discharge beam is arranged corresponding to the center of the adsorption electric field. The area involved in the discharge of one discharge beam is sufficient to radiate to the entire adsorption unit to ensure the adsorption purification efficiency requirements. When the radial cross-sectional area of ​​the adsorption unit is large, the front electrode group can include multiple discharge beams, and the multiple discharge beams perform corona discharge at the same time to enhance the particle charging efficiency and enhance the adsorption effect of the subsequent adsorption electric field.

[0155] In the present invention, the corona discharge on the front discharge electrode group adopts a DC negative high voltage, and the voltage range is -3kv to -60kv. Further, the voltage range is -3kv to -25kv, -4kv to -15kv, -8kV to -20kV, -10kV to -20kV, -15kV to -18kV or -10kV to -23kV. Typical but non-limiting voltages are: -3kv, -3.5kv, -4kv, -5kv, -6kv, -7kv, -8kv, -9kv, -10kv, -12kv, -13kv, -14kv, -15kv, -16kv, -17kv, -18kv, -19kv, -20kv, -21kv, 22kv, -23kv, -24kv, -25kv, -26kv, 27kv, -28kv, -29kv, 30kv, -35kv, -40kv, -45kv, -50kv, -55kv or -60kv.

[0156] In one embodiment of the present invention, the front electrode group and the adsorption unit constitute an air purification device for adsorbing particulate matter in the gas to obtain sterile, radiation-free and virus-free clean gas. In the gas flow direction, the front electrode group is located in front of the adsorption unit, and there is a distance between the front electrode group and the adsorption unit. The discharge beam in the front electrode group charges at least part of the particulate matter in the gas flowing through, and the gas with at least part of the charged particulate matter enters the adsorption unit for electrostatic particle removal.

[0157] The pre-discharge electrode group provided in this embodiment can further improve the discharge efficiency, thereby improving the rear-end particle removal efficiency. When applied to a gas particle purification system, it can further improve the purification efficiency of micron-sized and nano-sized particles.

[0158] Example 7

[0159] like Figure 7As shown, this embodiment provides another pre-discharge electrode group 20, which can be used in the air purification device of embodiment 5. The same parts of this embodiment as those described above are not repeated, and only the different parts are described. The pre-discharge electrode group 20 includes at least one discharge electrode group 22, and the discharge cluster 22 includes a plurality of circumferentially arranged discharge beams 21. It can be understood that the discharge beams 41 in the discharge electrode group 22 are distributed in a circular shape. The pre-discharge electrode group 20 also includes a support plate 23, which is circular, and the fixed end of the discharge beam 21 is arranged on the support plate 23. Multiple discharge electrodes 22 are connected to a DC high voltage to realize the pre-discharge electrode group 20 and the DC high voltage connection.

[0160] Continue to refer to Figure 7 The front discharge electrode group 20 includes a plurality of discharge electrode groups 22 with different radii and coaxially arranged. For example, in this embodiment, the front discharge electrode group 20 includes two discharge electrode groups 22. The discharge beam 41 in each discharge electrode group 22 is distributed in a circle. The radii of the circles where the two discharge electrode groups 22 are located are different, but the center positions of the circles are the same.

[0161] In this embodiment, Figure 8 As shown, the discharge beam 21 is arranged along the axial direction BB' of the discharge electrode group 22, that is, the extension line of the discharge beam is parallel to the axis. It can also be said that in this embodiment, the discharge beam 21 is arranged along the airflow direction.

[0162] In the present invention, the discharge electrode group includes multiple discharge beams, which have higher corona discharge efficiency than one discharge beam. At the same time, multiple discharge beams are arranged circumferentially, so the discharge is more uniform, which is beneficial to improving the efficiency of particle removal at the rear end.

[0163] References throughout the specification to "an example," "one embodiment," or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearance of "an example," "in one embodiment," or "in an embodiment" in various places throughout the specification need not all refer to the same embodiment. Additionally, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0164] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A system for extracting pure water from natural air, characterized in that: The system includes an air heating device, an air purification device, an air humidification device, and a condensation device, wherein: The air heating device utilizes solar energy and / or electrical energy to raise the temperature of the air; The air purification device is used to purify the incoming air of particles; The air humidifier is provided with a water absorbent, and the air purification device purifies the air entering the air humidifier, and absorbs water in the air purified by the air purification device through the water absorbent; the heated clean air after being processed by the air heating device and the air purification device enters the air humidifier to purge the water-absorbing ... The condensing device uses room temperature air to condense the heated and humidified clean air to obtain clean water.

2. The system for extracting pure water from natural air according to claim 1, characterized in that: The system comprises an air heating device, an air purification device, an air humidifying device, and a condensing device which are fluidically connected in sequence, or comprises an air purification device, an air heating device, an air humidifying device, and a condensing device which are fluidically connected in sequence, wherein: The air heating device utilizes solar energy and / or electrical energy to raise the temperature of the air; The air purification device is used to purify the incoming air of particles; The air humidifying device is provided with a water absorbent, and the system further comprises another air purifying device, wherein the another air purifying device purifies the air entering the air humidifying device, and absorbs water in the air purified by the another air purifying device through the water absorbent; the heated clean air after being processed by the air heating device and the air purifying device enters the air humidifying device to purge the water absorbent that has absorbed water, and the water in the water absorbent is released into the heated clean air, thereby obtaining heated and humidified clean air. The condensing device uses room temperature air to condense the heated and humidified clean air to obtain clean water.

3. The system for extracting pure water from natural air according to claim 1, characterized in that: The water absorbent includes an inorganic water absorbent or an organic water absorbent. The inorganic water absorbent includes at least one of zinc chloride, lithium chloride, calcium chloride, magnesium chloride, potassium carbonate, and sodium sulfate. The organic water absorbent includes at least one of glycerol, polyethylene glycol PEG200, betaine, and proline.

4. The system for extracting pure water from natural air according to claim 1, characterized in that: The air purification device is installed in the wall, and outdoor air enters the air purification device for particle purification, removing particles and aerosols containing viruses, bacteria, and radioactive substances in the air to obtain sterile, radiation-free, and virus-free clean air.

5. The system for extracting pure water from natural air according to claim 1, characterized in that: The air heating device heats the outdoor air to a certain temperature to obtain heated air, the heated air enters the air purification device located in the wall to adsorb particulate matter, disinfects and sterilizes the air to obtain purified air, the heated clean air enters the air humidification device to obtain heated and humidified clean air, the heated and humidified clean air enters the indoor condensing device to exchange heat with the indoor room temperature air to obtain clean water.

6. The system for extracting pure water from natural air according to claim 1, characterized in that: Outdoor air enters the air purification device located in the wall to adsorb particulate matter, and the outdoor air is disinfected and sterilized to obtain purified air. The purified air enters the air heating device in the room, and the air heating device heats the purified air to a certain temperature to obtain heated air. The heated clean air enters the air humidification device to obtain heated and humidified clean air. The heated and humidified clean air enters the condensing device to exchange heat with the room temperature air in the room to obtain clean water.

7. The system for extracting pure water from natural air according to claim 1, characterized in that: The system further comprises a heating device for heating the water absorbing agent after absorbing water to release water vapor.

8. The system for extracting pure water from natural air according to claim 1, characterized in that: The air purification device is an air purification device that uses an electric field to adsorb particulate matter, and the air purification device includes: Pre-placement electrode group and adsorption unit; Along the gas flow direction, the front electrode group is located in front of the adsorption unit and has a distance from the adsorption unit. The front discharge electrode group includes at least one discharge beam connected to a DC high voltage power supply, The adsorption unit comprises at least one adsorption electrode and at least one discharge electrode for forming an adsorption electric field, wherein A gas flow channel is formed between the discharge electrode and the adsorption electrode to allow the gas to pass through and perform the electric field treatment. The distances between adjacent discharge electrodes and adsorption electrodes are the same.

9. The gas particulate matter purification device according to claim 8, characterized in that: The discharge beam satisfies one or both of the following conditions: (1) The discharge beam comprises n metal wires and / or conductive non-metal wires, wherein n is greater than or equal to 10,000; (2) The discharge beam comprises a plurality of metal wires and / or conductive non-metal wires, wherein The diameter of the metal wire is in the range of 0.1-100 um, or the diameter of the conductive non-metal wire is in the range of 0.1-100 um. Optionally, the metal wire includes at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, and nickel alloy wire, or the conductive non-metallic wire is carbon fiber wire. Optionally, the single fiber diameter of the stainless steel fiber filament is in the range of 5-100 um, or the single fiber diameter of the carbon fiber filament is in the range of 5-100 um. Optionally, one end of the plurality of metal wires and / or the conductive non-metal wires are fixed together to form a fixed end, and the other end is a free end facing the adsorption unit, wherein the front discharge electrode group also includes a support plate, and the fixed end of the discharge beam is fixed to the support plate.

10. The gas particulate matter purification device according to claim 1, characterized in that: The front discharge electrode group includes at least one discharge electrode group, and the discharge cluster includes a plurality of circumferentially arranged discharge beams, wherein When the front discharge electrode group includes a plurality of discharge electrode groups with different radii, the plurality of discharge electrode groups are coaxially arranged.

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