KR102086427B1 - Hydrophobic membrane and apparatus including the same - Google Patents

Abstract

A hydrophobic membrane and a dehumidifying device, a humidifying device, and a water collecting device in air including the same.

Description

HYDROPHOBIC MEMBRANE AND APPARATUS INCLUDING THE SAME}

The present application relates to a hydrophobic membrane and a dehumidifying device, a humidifying device, and a water collecting device in air including the same.

Recently, as the industrial advancement demands high purity and high quality products, membrane technology is recognized as a very important field. In particular, in the environmental field, as the need for clear water and awareness of water shortages increase, technology using a separator has attracted much attention as a way to solve this problem. Processes such as water purification, sewage, wastewater, and desalination using membranes are already rapidly spreading, and they are being used for application products instead of technology development for membranes themselves. The development of the furnace is being expanded.

The separator is a material having a selectivity existing between two different materials, and means a material that selectively passes or excludes a certain material. There are no restrictions on the structure or material of the membrane, and the state or principle of movement of the material through the membrane, and the material is generally separated if the two materials are isolated from each other and the selective movement of the material through the membrane between them. It can be called

On the other hand, when the humidity in the air is high, decay, corrosion, condensation water, and odors and bacteria are generated. Therefore, homes, hospitals, moisture, electrical, telecommunications, and various electronic equipments are required to remove such moisture. .

The conventional dehumidifier is mainly composed of a refrigeration cycle using a refrigerant gas such as CFC. In addition to environmental issues, the complexity of the structure such as evaporators, condensers and compressors, noise, vibration and power consumption is very large and occupies a lot of installation space. In addition, heat generated during driving shortens the life of the dehumidifier. Therefore, a dehumidifier having a simple structure is required.

Korean Unexamined Patent Publication No. 2013-0046346 discloses a method for drying a heat exchanger of a dehumidifying apparatus and a dehumidifying apparatus using the same.

The present application relates to a hydrophobic membrane and a dehumidifying device, a humidifying device, and a water collecting device in air including the same.

However, the problem to be solved by the present application is not limited to the above-mentioned problem, another task that is not mentioned will be clearly understood by those skilled in the art from the following description.

A first aspect of the present disclosure is a hydrophobic macropores layer; A hydrophobic micropores layer formed on the hydrophobic macropores layer; And a hydrophobic molecular coating layer formed on the hydrophobic micropores layer.

A second aspect of the present disclosure includes a hydrophobic membrane according to one or more first aspects, one or more wet air inlets, and one or more dry air outlets, the wet air inlets interposed with the dry air outlet with the hydrophobic membrane in between. It is provided on the opposite side, to provide a dehumidifying device.

A third aspect of the present disclosure includes a hydrophobic membrane according to one or more first aspects, one or more external air inlets, one or more wet air outlets, and one or more dry air outlets, the external air inlets interposed between the hydrophobic membranes. It is provided on the opposite side to the dry air outlet, and provides a humidifying device.

A fourth aspect of the present application includes at least one pump operated by a power supply, at least one hydrophobic membrane device, and a water storage container connected with the hydrophobic membrane device, the hydrophobic membrane device according to the first aspect, And an air inlet, and a dry air outlet.

Hydrophobic membrane according to an embodiment of the present application, including a hydrophobic micropores layer, the hydrophobic micropores layer can effectively block the passage of a large water molecule cluster as well as a single water molecule. This hydrophobic micropores layer is also unaffected by changes in temperature and time, and the fluid velocity through the hydrophobic micropores layer under a given pressure before and after the membrane is constant.

Hydrophobic membrane according to an embodiment of the present application comprises a hydrophobic macropores layer, a hydrophobic micropores layer formed on the hydrophobic macropores layer, and a hydrophobic molecular coating layer formed on the hydrophobic micropores layer, thereby forming a multi-layer hydrophobic film In addition, the effect of blocking moisture from passing through the membrane is excellent.

Dehumidification apparatus including a hydrophobic membrane according to an embodiment of the present invention can produce dry air without the cooling condensation device, it is possible to produce a dry air of 0% relative humidity. The prepared dry air having a relative humidity of 0% can be utilized to increase the carbon dioxide adsorption amount. In addition, it is possible to produce dry air at a faster rate than a dehumidifier using a cooling condensation device.

Dehumidifying apparatus including a hydrophobic membrane according to an embodiment of the present application, the drying air passing through the hydrophobic membrane is concentrated and injected into the room can exhibit a dehumidifying effect.

In the humidifying apparatus including the hydrophobic membrane according to the exemplary embodiment of the present disclosure, the humidified air that has not passed through the hydrophobic membrane is concentrated and injected into the room, thereby exerting a humidifying effect.

The apparatus for collecting water in air including a hydrophobic membrane according to an embodiment of the present disclosure may convert moisture into water by using a concentration of moisture that has not passed through the hydrophobic membrane and agglomeration with water. That is, water may be generated by collecting moisture in the air.

1A and 1B are schematic views of hydrophobic membranes according to one embodiment of the present disclosure.
2 is a hydrophobic membrane photograph and a scanning electron micrograph according to an embodiment of the present application.
3A to 3C illustrate the feed relative and permeate relative humidity for the hydrophobic micropores at 10 ° C., 25 ° C. and 40 ° C., respectively, for a hydrophobic membrane according to one embodiment of the present disclosure. Graph showing the relationship.
4A to 4C show hydrophobic microparticles of hydrophobic membranes at 10 ° C., 25 ° C., and 40 ° C., respectively, at a pressure difference of 1.8 atm and at an air flow rate of 140 mL / min, at 10 ° C., 25 ° C., and 40 ° C., respectively. It is a graph showing the relationship between feed absolute humidity and permeate absolute humidity for the pupil layer.
FIG. 5 shows time (7 days) of permeate relative humidity when the feed relative humidity is 30%, 50%, 75%, and 95%, respectively, for the hydrophobic membrane according to one embodiment of the present application. It is a graph observing the change according to.
6A to 6D are various schematic views of a dehumidifying apparatus installed outdoors according to an embodiment of the present disclosure.
7A to 7C are various schematic views of a dehumidifying apparatus installed indoors according to one embodiment of the present application.
8A to 8C are various schematic views of the humidifying apparatus according to the embodiment of the present application.
9 is a schematic diagram of a water collecting device in the air according to an embodiment of the present application.

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present disclosure. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

Throughout this specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. do.

Throughout this specification, when a member is located "on" another member, this includes not only when one member is in contact with another member but also when another member exists between the two members.

Throughout this specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding the other components, unless otherwise stated.

As used throughout this specification, the terms "about", "substantially", and the like, are used at, or in proximity to, the numerical values of the preparations and material tolerances inherent in the meanings indicated, and refer to the understanding herein. Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers.

As used throughout this specification, the term "step to" or "step of" does not mean "step for."

Throughout this specification, the term "combination (s) thereof" included in the representation of the Markush form refers to one or more mixtures or combinations selected from the group consisting of the components described in the Markush form representation, It means to include one or more selected from the group consisting of the above components.

Throughout this specification, the description of "A and / or B" means "A or B, or A and B."

Throughout this specification, "alkyl" may be one containing a linear or branched, saturated or unsaturated alkyl group, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, or all possible It may be to include an isomer, but may not be limited thereto.

Throughout this specification, "aryl" refers to monocyclic or bicyclic such as, for example, fused bicyclic such as naphthyl, phenanthrenyl, etc., as well as monocyclic such as phenyl, substituted phenyl, and the like. An aromatic ring means that the aryl group may include at least one ring having at least six atoms, but may not be limited thereto.

Throughout this specification, "film" may include, but is not limited to, "thin film".

Hereinafter, embodiments of the present disclosure have been described in detail, but the present disclosure may not be limited thereto.

A first aspect of the present disclosure is a hydrophobic macropores layer; A hydrophobic micropores layer formed on the hydrophobic macropores layer; And a hydrophobic molecular coating layer formed on the hydrophobic micropores layer.

1A shows a schematic diagram of the hydrophobic membrane according to one embodiment of the present application.

In one embodiment of the present application, the hydrophobic macropores layer, from the group consisting of metal oxide beads, porous alumina, anodized alumina, pores formed silicon, fused silica formed pores, and a hydrophobic polymer It may include one or more selected, but may not be limited thereto. For example, the metal oxide beads may include, but are not limited to, silica beads, titanium dioxide beads, alumina beads, zirconia beads, molybdenum oxide beads, tungsten oxide beads, and the like.

In one embodiment of the present application, the hydrophobic polymer is polyvinylidene fluoride (Polyvinylidene fluoride (PVDF), polytetrafluoroethylene (Polytetrafluoroethylene, PTFE), polysulfone (Polysulfone), polyvinyl chloride (polyvinyl chloride, PVC) , uPVC (unplasticized polyvinyl chloride), and cPVC (chlorinated polyvinyl chloride) may include one or more selected from, but may not be limited thereto.

In one embodiment of the present application, the hydrophobic membrane may be a macroporous membrane in the form of a plate (round or square, etc.) or hollow fiber, but may not be limited thereto.

The hydrophobic macroporous membrane or hydrophobic macroporous membrane has been developed for about 40 years and has been studied for the purpose of application in the field of membrane distillation, which is a method of desalination of seawater. Membrane distillation using this membrane is known to be more energy efficient than the reverse osmosis method currently widely used, but has not been commercialized yet. The surface of the membrane is usually superhydrophobic, which means that the salts of sea water do not stick and the walls of the macropores are hydrophobic, so that the water molecule clusters do not stick to the hydrophobic pores by hydrogen bonds. Pass by. On one side of the membrane there is sea water heated to about 50 ° C to about 80 ° C, and the temperature on the other side of the membrane is lower than that of the seawater, so that the relatively high pressure water vapor in the high temperature seawater has a low water vapor pressure. Use the principle of moving to a relatively low place. That is, the hydrophobic macropores membrane is a membrane that selectively passes only water without passing salt from seawater (e.g., J. Membrane Sci . 2014, 453, 435-462, J. Membrane Sci . 2017 530 , 42-52, J. Membrane Sci . 2012, 415-416 , 850-863, ACS Appl . Mater.Interfaces 2014, 6 , 24232430, ACS Appl . Mater.Interfaces 2014, 6 , 1603516048.).

In one embodiment of the present application, the hydrophobic macropores layer, the pore size may be in the range of about 200 nm to about 1000 nm, but may not be limited thereto. For example, the pore size of the hydrophobic macropores layer is about 200 nm to about 1000 nm, about 200 nm to about 800 nm, about 200 nm to about 600 nm, about 200 nm to about 400 nm, about 400 nm to about 1000 nm, about 400 nm to about 800 nm, about 400 nm to about 600 nm, about 600 nm to about 1000 nm, about 600 nm to about 800 nm, or about 800 nm to about 1000 nm. It may not be limited.

In one embodiment of the present application, the porous alumina may include anodized alumina, but may not be limited thereto.

In one embodiment of the present application, the hydrophobic micropores layer, molecular sieve, silica zeolite, aluminosilicate zeolite, dealulicate silicate, high-silica zeolite, gallosilicate, galgalsilicate, galgalsilicate From the group consisting of silicates, borosilicates, deboron silicates, quasi all-silica zeolites by Isomorphous Degermanation of ITQ-22, transition metal silicates, metal organic structures, and partial demetallic metal silicates It may be selected but is not limited thereto.

In one embodiment of the present application, the molecular sieve (molecular sieve), AlPO, MAPO, MeAPSO and the like molecular sieve; Or MIL-53, MIL-101 (Cr), MIL-53 (Al) -AM6, hydrophobic Zn-based metal organic structure [Zn ₂ (adb) ₂ (dabco)], SNU-80, [Ni ₈ (OH) _4- (H ₂ O) ₂ (L) ₆ ] _n , Al (OH) (1,4-naphthalenedicarboxylate) [Al (OH) (1,4-naphthalenedicarboxylate)], ZIF-8, ZIF- Metal organic frameworks (MOF) such as 71, ZIF-90 Ni (bpb), Zn (bpb), oCB-MOF-1, and the like; It may be to include a covalent organic framework (COF) -based molecular sieve, such as modified or unmodified COF-1, but may not be limited thereto.

In one embodiment of the present application, the silica zeolite (silica zeolite), silica light-1, silica light-2, silica beta, silica ZSM-n (n = 5, 11, 12, 22, 23, 48), Silica UTD-1, silica ferrierite, silica AFI (SSZ-24), silica SSZ-73, silica lat3 (Clathrasil Decadodecasil 3R), or silica IFR, but may not be limited now. .

In one embodiment of the present application, the high-silica zeolite comprises MCM-22, Nu-86, Nu-87, ZSM-18, ZSM-57, ZSM-58, mordenite, or MTW It may be, but may not be limited thereto.

In one embodiment of the present disclosure, the transition metal silicate may include, but is not limited to, microporous titanosilicate, copper silicate, vanadosilicate, or zirconosilicate.

In one embodiment of the present application, the hydrophobic micropores layer, the pore size may be about 1 nm or less, but may not be limited thereto. For example, the pore size of the hydrophobic micropores layer is about 0.001 nm to about 1 nm, about 0.005 nm to about 1 nm, about 0.01 nm to about 1 nm, about 0.05 nm to about 1 nm, about 0.1 nm to about 1 nm, about 0.5 nm to about 1 nm, about 0.001 nm to about 0.5 nm, or about 0.005 nm to about 0.05 nm, but may not be limited thereto.

In one embodiment of the present application, the hydrophobic micropores layer may be to block the passage of water molecules clusters and single water molecules, but is not limited thereto.

In one embodiment of the present application, the hydrophobic molecular coating layer, C ₁ -C ₃₀ linear or branched hydrocarbons (for example, C ₁ -C ₃₀ , C ₁ -C ₂₀ , C ₁ -C _10, C ₅ -C ₃₀ , C ₁₀ -C ₃₀ , C ₅ -C ₂₀ , or C ₁₀ -C ₂₀ linear or branched saturated or unsaturated hydrocarbons of carbon atoms), linear or branched partial fluorine of C ₁ -C ₃₀ carbon atoms Substituted hydrocarbons (eg, C ₁ -C ₃₀ , C ₁ -C ₂₀ , C ₁ -C _10, C ₅ -C ₃₀ , C ₁₀ -C ₃₀ , C ₅ -C ₂₀ , or C ₁₀ -C Linear or branched partially fluorine-substituted saturated or unsaturated hydrocarbons of ₂₀ carbon atoms), linear or branched perfluorinated carbon atoms of C ₁ -C ₃₀ (eg, C ₁ -C ₃₀ , C _1- C ₂₀ , C ₁ -C _10, C ₅ -C ₃₀ , C ₁₀ -C ₃₀ , C ₅ -C ₂₀ , or C ₁₀ -C ₂₀ carbon atoms, linear or branched partially perfluorinated saturated or unsaturated carbons), aryl (aryl), alkyl aryl, aryl alkyl hydrocarbons, partially fluorine substituted Reel, partially fluorine substituted alkyl aryl, partially fluorine substituted aryl alkyl hydrocarbons, perfluorinated aryl, perfluorinated alkyl aryl, perfluorinated aryl alkyl hydrocarbons It may be, but may not be limited thereto. For example, the alkyl described for the hydrophobic molecular coating layer is a C ₁ -C ₁₀ linear or branched alkyl group, the hydrocarbons are C ₁ -C ₃₀ , C ₁ -C ₂₀ , C ₁ -C _10, C ₅ -C ₃₀ , C ₁₀ -C ₃₀ , C ₅ -C ₂₀ , or C ₁₀ -C _{20 It} may be a linear or branched saturated or unsaturated hydrocarbons of carbon number, but may not be limited thereto.

In one embodiment of the present application, the hydrophobic membrane may further include a hydrophobic mesopores layer between the hydrophobic macropores layer and the hydrophobic micropores layer, but may not be limited thereto.

1B shows a schematic diagram of a hydrophobic membrane further comprising the hydrophobic mesopores layer according to one embodiment of the present disclosure.

In one embodiment of the present application, the hydrophobic mesoporous layer is formed by laminating a regular mesoporous silica film, a regular mesoporous metal oxide film, a regular mesoporous carbon film, and metal oxide nanoparticles The mesoporous film may be selected from the group consisting of, but is not limited thereto.

In one embodiment of the present application, the regular mesoporous silica may include MCM-41 or SBA-15, but is not limited thereto.

In one embodiment of the present application, the regular mesoporous metal oxide may be one containing mesoporous titanium dioxide, but is not limited thereto.

In one embodiment of the present application, the metal oxide nanoparticles may include nano silica particles, nano titanium dioxide particles and the like, but is not limited thereto.

In one embodiment of the present application, the hydrophobic mesopores layer, the pore size may be in the range of about 5 nm to about 20 nm, but may not be limited thereto. For example, the hydrophobic mesopores layer has a pupil size of about 5 nm to about 20 nm, about 5 nm to about 15 nm, about 5 nm to about 10 nm, about 10 nm to about 20 nm, about 10 nm to About 15 nm, or about 15 nm to about 20 nm, but may not be limited thereto.

The hydrophobic mesoporous layer or membrane (mesoporous hydrophobic membrane), a variety of membranes can be developed, but currently known mesoporous membrane is made by vertically growing multi-walled carbon nanotubes (MWCNT). In the case of the hydrophobic mesoporous membrane, the passage of clusters formed of large water molecules is effectively blocked, but water molecules having a small size pass well. Therefore, (1) the relative humidity in air increases the water molecule cluster size and the cluster fraction increases, so the permeability of water vapor decreases, so that the relative humidity of permeate is lowered. Increasing the fraction of small water molecules increases the relative humidity of the flow. (3) When the air temperature is high, about 20 ° C, the water molecules forming the clusters are broken, so that the concentration of a single water molecule increases, so that the relative humidity of the flow-through water increases. Therefore, (4) the meso-phobic hydrophobic membrane can be utilized to obtain a passage having a very low relative humidity from air having a relative humidity of about 100% at a temperature of 5 ° C or lower. In addition, (5) it is effective to obtain a passage having a very low relative humidity only when the flow rate of the humid air flowing through the membrane is very low. (6) Relative humidity tends to increase over time. Thus, meso-porous hydrophobic membranes can release dry air for a short period of time when wet air is introduced at a very low flow rate when the relative humidity approaches 100% at low temperatures below 5 ° C ( Nanoscale , 2015, 7 , 14316-). 14323, ACS Nano , 2012, 6, 5980-5987).

A second aspect of the present disclosure includes a hydrophobic membrane according to one or more first aspects, one or more wet air inlets, and one or more dry air outlets, the wet air inlets interposed with the dry air outlet with the hydrophobic membrane in between. It is provided on the opposite side, to provide a dehumidifying device.

Although the redundant description of the contents of the hydrophobic membrane of the first aspect of the present application has been omitted, all of the aspects can be applied.

In one embodiment of the present application, the dehumidifier may be installed in the outdoors or indoors, but may not be limited thereto.

In one embodiment of the present application, the dehumidifying apparatus may further include one or more of a water outlet, a water reservoir, a cooler, and a dust filter, but may not be limited thereto.

In one embodiment of the present application, the water outlet may be used to discharge the water formed when water that has not passed through the hydrophobic membrane is condensed to form water, but may not be limited thereto.

In one embodiment of the present application, the water reservoir may be used to store water when water is formed by condensation of water that has not passed through the hydrophobic membrane when the dehumidifying apparatus is installed indoors, but may not be limited thereto. .

In one embodiment of the present application, the cooler may be used to condense the moisture that has not passed through the hydrophobic membrane and store it as water when the dehumidifier is installed indoors, but may not be limited thereto.

In one embodiment of the present application, the dehumidifying apparatus may be used in connection with the conventional dehumidifying apparatus, but may not be limited thereto.

In one embodiment of the present application, the dehumidifying device may include two or more hydrophobic membranes connected in series, but may not be limited thereto.

In one embodiment of the present application, the dehumidifying device, the external humid air is introduced into the dehumidifying device is blocked by the passage of moisture when passing through the hydrophobic membrane, the dry air flows through the hydrophobic membrane to the target space In addition, the moist air containing the blocked moisture may be discharged to the outside, the water outlet, the water reservoir, and / or the cooler, but may not be limited thereto.

FIG. 6A is a schematic view of a dehumidifying apparatus including one hydrophobic membrane according to one embodiment of the present invention. The indoor air is introduced into a building, a car, a train, a ship, or the like by introducing dry air generated by drying external humid air. The dehumidification apparatus which keeps it dry is shown.

6B illustrates a dehumidifier installed outside of two dehumidifiers connected in series according to an embodiment of the present disclosure. This keeps the indoor air dry by introducing very dry air (secondary dry air) generated by two consecutive drying of the external humid air into a building, a car, a train, a ship, and the like.

Figure 6c shows a dehumidifying device, the two dehumidifying apparatus according to an embodiment of the present application is installed separately from each other. The first unit is used to dry external humid air and then flows into buildings, cars, trains, ships, etc. indoors (dehumidification inflow). The second unit is used to remove dry air from some of the indoor air. It is a method of drying indoor air that flows in (concentrated exhaust).

FIG. 6D illustrates a dehumidifying apparatus having externally installed dehumidifying apparatuses connected in series according to an embodiment of the present application. By connecting the first and second devices in series, the outside humid air is very dry and then flowed into the building, car, train, ship, etc., and the third and fourth devices are connected in series. The indoor air drying method removes moisture from some of the indoor air and introduces very dry dry air back into the room.

FIG. 7A illustrates a dehumidifier installed indoors according to an embodiment of the present disclosure, and uses a dehumidifying apparatus including a first hydrophobic membrane to discharge dehumidified air into a room and store and remove collected water. .

FIG. 7B is a dehumidifying device installed indoors according to an embodiment of the present disclosure, and a dehumidifying device having the same principle as the device of FIG. 6A or cooling condensed water to lower water vapor pressure to further lower moisture of air discharged through the membrane. Use

Figure 7c is a principle of further lowering the moisture of the air discharged by using the hydrophobic membrane developed by the present application the dried air discharged to the room in the dehumidification apparatus using the existing cooling method installed in the room according to an embodiment of the present application It is attached to existing dehumidifier and used to enhance dehumidification performance.

A third aspect of the present disclosure includes a hydrophobic membrane according to one or more first aspects, one or more external air inlets, one or more wet air outlets, and one or more dry air outlets, the external air inlets interposed between the hydrophobic membranes. It is provided on the opposite side to the dry air outlet, and provides a humidifying device.

Although the redundant description of the contents of the hydrophobic membrane of the first aspect of the present application has been omitted, all of the aspects can be applied.

In one embodiment of the present application, the humidifier may be installed outdoors or indoors, but may not be limited thereto.

In one embodiment of the present application, when the humidifying device is installed indoors, it may be to include a water containing part connected to the dry air outlet, but may not be limited thereto. Here, the dry air may pass through the water containing portion to form wet air, but the wet air may flow out into the room, but may not be limited thereto.

In one embodiment of the present application, the humidifying device may be to include two or more of the hydrophobic membrane, but may not be limited thereto.

In one embodiment of the present application, the wet air outlet may be one that can be ON / OFF control, if necessary, but may not be limited thereto.

8A is a schematic view showing the humidifying apparatus according to the exemplary embodiment of the present disclosure, wherein the humidifying apparatus blocks the passage of moisture when external air flows into the humidifying apparatus and passes through the hydrophobic membrane, whereby dry air is hydrophobic. Moisture air, which flows out through the membrane to the outside and contains blocked moisture, may be leaked to the target space, but may not be limited thereto.

Figure 8b is a schematic diagram showing the humidifying device according to an embodiment of the present application, the humidifier is attached to the dehumidifying device of the same principle as the device of Figure 7a is attached to the outside as much as the indoor air discharged from the outside is discharged to the outside When it passes through the hydrophobic membrane to minimize the amount of water discharged to the outside may be to use the principle of more effective indoor humidification (humidity control), but may not be limited thereto.

Figure 8c is a schematic diagram showing the humidifying apparatus according to an embodiment of the present application, the humidifier is the indoor air is introduced into the humidifying device is blocked by the passage of moisture when passing through the hydrophobic membrane, dry air is the hydrophobic Through the membrane may be introduced into the water storage chamber and discharged into the room containing moisture to use the principle of more effective indoor humidification (humidity control), but may not be limited thereto.

A fourth aspect of the present application includes at least one pump operated by a power supply, at least one hydrophobic membrane device, and a water storage container connected with the hydrophobic membrane device, the hydrophobic membrane device according to the first aspect, And an air inlet, and a dry air outlet.

Although the redundant description of the contents of the hydrophobic membrane of the first aspect of the present application has been omitted, all of the aspects can be applied.

In one embodiment of the present application, the pump may be used to discharge the outside air or water in the water storage container, but may not be limited thereto.

In one embodiment of the present application, the moisture that does not pass through the hydrophobic membrane may be formed as water is moved to the water storage container, but may not be limited thereto.

In one embodiment of the present application, the air collecting device in the air may include a dust filter, but may not be limited thereto.

In one embodiment of the present application, the water trapping device in the air may be accumulated to be at least about 70% of the moisture contained in the incoming outside air is not continuously escaped and eventually concentrated to become water, but is not limited thereto. Can be.

9 is a schematic diagram showing a water trapping device in the air according to an embodiment of the present application, and by using a hydrophobic membrane to prevent at least about 70% of the moisture contained in the external air introduced into the end to eventually accumulate and concentrated It is a water collecting device that uses the phenomenon of becoming water, and in this device, the water storage container is placed in the basement, which helps condensation of water when the temperature of the ground is higher than the ground during the day, which makes the water collection from the air more favorable. Represents a device that allows the use of a battery to operate two pumps during the day and night.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto.

[ Example  One]

Using a hydrophobic microporous membrane of 22 mm diameter and 3 mm thickness formed from 1.5 mm thick silicalite and 350 nm + 550 nm silica beads in FIG. 2, the unit area at a pressure of 1.8 atm was applied to both membranes. Membrane performance was analyzed under conditions having a flow rate of 55 mL / min per cm ² ), and the results were observed.

Specifically, Figures 3a to 3c, for the hydrophobic membrane, for the hydrophobic microporous layer of the hydrophobic membrane at 10 ℃, 25 ℃, 40 ℃, the pressure difference before and after the membrane 1.8 atm, air flow rate 140 mL / min The graphs show the relationship between feed relative humidity and permeate relative humidity, indicating that the slope is constant regardless of temperature and the permeate relative humidity is constant regardless of temperature for a given supply relative humidity.

4a to 4c show feed for the hydrophobic membrane of the hydrophobic membrane at 10 ° C., 25 ° C. and 40 ° C., respectively, at a pressure difference of 1.8 atm and at an air flow rate of 140 mL / min for the hydrophobic membrane. The graphs show the relationship between absolute humidity and permeate absolute humidity, indicating that the permeate absolute humidity is constant when the feed absolute humidity is determined regardless of temperature.

FIG. 5 shows that for the hydrophobic membrane, permeate relative humidity (value on the left) is measured at least according to time when feed relative humidity is 30%, 50%, 75% and 95%, respectively. No change was seen during the day.

In summary, (1) it was found that the feed relative humidity and the permeate relative humidity were linearly proportional to each other (FIGS. 3A to 3C). Accordingly, the lower the relative humidity of the membrane, the lower the relative humidity of the passage. This phenomenon is due to the fact that the microporous hydrophobic membrane not only blocks the passage of large water molecule clusters but also effectively blocks the passage of a single non-molecule. This phenomenon is distinguished from the phenomenon in which the relative humidity of the passing material is lowered only when the relative humidity of the supplied air is high.

In addition, even when the temperature increased from 10 ° C to 40 ° C, the relative humidity of the passing material did not change (FIGS. 3A to 3C). This is in contrast to the phenomenon that the hydrophobic mesopores have a low relative humidity in the air, and thus, when the fraction of water molecules having a small size increases, the relative humidity of the through water increases.

(3) Feed absolute humidity and permeate absolute humidity were linearly proportional regardless of temperature (FIGS. 4A to 4C). Therefore, the lower the absolute supply humidity, the lower the absolute humidity of the passage.

(4) Even after one week passed, the relative humidity of the water passed was constant (FIG. 5).

[ Example  2]

The experiment was performed with a hydrophobic membrane coated with a long alkyl group on a ZIF-8 microporated layer coated with 3-aminopropyl trimethoxy silane and then grown on a macroporous silica bead substrate. And similar results were obtained. This suggests that membranes with hydrophobic micropores of any kind can effectively block the passage of moisture.

The above description of the present application is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the above description, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present application. .

Claims (28)

One or more hydrophobic membranes,
One or more wet air inlets, and
One or more dry air outlets
Including;
Wherein the humid air inlet is disposed opposite the dry air outlet with the hydrophobic membrane interposed therebetween,
The hydrophobic membrane comprises a hydrophobic macroporous layer; A hydrophobic microporous layer formed on the hydrophobic macropores layer; And a hydrophobic molecular coating layer formed on the hydrophobic micropores layer,
The pore size of the hydrophobic micropores layer is 0.001 nm to 0.5 nm,
Wherein the hydrophobic micropores layer blocks the passage of water molecule clusters and single water molecules,
Dehumidifier.
The method of claim 1,
The hydrophobic macropores layer, dehumidifying apparatus comprising at least one selected from the group consisting of metal oxide beads, porous alumina, pores formed silicon, fused silica formed pores, and a hydrophobic polymer.
The method of claim 2,
The hydrophobic polymer is polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polysulfone (Polysulfone), polyvinyl chloride (PVC), uPVC (unplasticized polyvinyl chloride), And at least one selected from the group consisting of cPVC (chlorinated polyvinyl chloride).
The method of claim 1,
A dehumidifying device having a plate form or hollow fiber form.
The method of claim 1,
The hydrophobic micropores layer may include molecular sieve, silica zeolite, aluminosilicate zeolite, dealulicate silicate zeolite, high-silica zeolite, gallosilicate, galgalsilicate, borosilicate, borosilicate, Deboron silicates, quasi all-silica zeolites, transition metal silicates, partially demetallic silicates, metal organic frameworks (MOFs), and modified or unmodified COF-1 Dehumidifier is formed comprising a molecular sieve selected from the group consisting of covalent organic framework (COF) -based molecular sieve of.
The method of claim 1,
The hydrophobic molecular coating layer, a linear or branched C ₁ -C ₃₀ carbon atoms, branched hydrocarbons having a carbon number of C ₁ -C ₃₀ linear or branched portion fluorine-substituted hydrocarbons, linear or branched C ₁ -C ₃₀ carbon atoms in the branched perfluorinated Perfluorinated carbons, aryl, alkyl aryl, aryl alkyl hydrocarbons, partially fluorine substituted aryl, partially fluorine substituted alkyl aryl, partially fluorine substituted aryl alkyl hydrocarbons, A dehumidifying device comprising one selected from the group consisting of perfluorinated aryl, perfluorinated alkyl aryl, and perfluorinated aryl alkyl hydrocarbons.
The method of claim 1,
And a hydrophobic mesopores layer between said hydrophobic macropores layer and said hydrophobic micropores layer.
The method of claim 7, wherein
The hydrophobic mesoporous layer is selected from the group consisting of a regular mesoporous silica film, a regular mesoporous metal oxide film, a regular mesoporous carbon film, and a mesoporous film formed by laminating metal oxide nanoparticles. Dehumidification apparatus.
delete delete The method of claim 1,
And at least one of a water outlet, a water reservoir, a cooler, and a dust filter.
The method of claim 1,
At least two said hydrophobic membranes.
The method of claim 11,
As the external humid air enters the dehumidification device and blocks the passage of moisture when passing through the hydrophobic membrane, dry air passes through the hydrophobic membrane and flows out into the target space, and the moist air containing the blocked moisture And outflow to at least one of the water outlet, the water reservoir, and the cooler.
One or more hydrophobic membranes,
One or more external air inlets,
One or more wet air outlets, and
One or more dry air outlets
Including;
Wherein said external air inlet is disposed opposite said dry air outlet with said hydrophobic membrane interposed therebetween,
The hydrophobic membrane comprises a hydrophobic macroporous layer; A hydrophobic microporous layer formed on the hydrophobic macropores layer; And a hydrophobic molecular coating layer formed on the hydrophobic micropores layer,
The pore size of the hydrophobic micropores layer is 0.001 nm to 0.5 nm,
Wherein the hydrophobic micropores layer blocks the passage of water molecule clusters and single water molecules,
Humidification device.
The method of claim 14,
When outside air flows into the humidification device and blocks the passage of moisture when passing through the hydrophobic membrane, dry air flows out through the hydrophobic membrane and the humid air containing the blocked moisture flows out into the target space. The humidifier.
The method of claim 14,
If the humidifier is installed indoors, further comprising a water containing portion connected to the dry air outlet.
The method of claim 16,
Humidifier, wherein the dry air flows through the water containing portion to form a humid air to the room.
The method of claim 14,
And at least two of said hydrophobic membranes.
One or more pumps operated by a power supply,
One or more hydrophobic membrane devices, and
A water storage container connected with the hydrophobic membrane device
Including;
Wherein said hydrophobic membrane device comprises a hydrophobic membrane, an air inlet, and a dry air outlet, wherein
The hydrophobic membrane comprises a hydrophobic macroporous layer; A hydrophobic microporous layer formed on the hydrophobic macropores layer; And a hydrophobic molecular coating layer formed on the hydrophobic micropores layer,
The pore size of the hydrophobic micropores layer is 0.001 nm to 0.5 nm,
Wherein the hydrophobic micropores layer blocks the passage of water molecule clusters and single water molecules,
Device for collecting moisture in the air.
The method of claim 19,
Wherein said pump is used to draw external air or discharge water from said water reservoir.

The method of claim 14,
The hydrophobic macropores layer, the humidifying apparatus comprises at least one selected from the group consisting of metal oxide beads, porous alumina, pores formed silicon, fused silica formed pores, and a hydrophobic polymer.
The method of claim 14,
The hydrophobic micropores layer may include molecular sieve, silica zeolite, aluminosilicate zeolite, dealulicate silicate zeolite, high-silica zeolite, gallosilicate, galgalsilicate, borosilicate, borosilicate, Deboron silicates, quasi all-silica zeolites, transition metal silicates, partially demetallic silicates, metal organic frameworks (MOFs), and modified or unmodified COF-1 Humidifier is formed comprising a molecular sieve selected from the group consisting of covalent organic framework (COF) -based molecular sieve of.
The method of claim 14,
The hydrophobic molecular coating layer, a linear or branched C ₁ -C ₃₀ carbon atoms, branched hydrocarbons having a carbon number of C ₁ -C ₃₀ linear or branched portion fluorine-substituted hydrocarbons, linear or branched C ₁ -C ₃₀ carbon atoms in the branched perfluorinated Perfluorinated carbons, aryl, alkyl aryl, aryl alkyl hydrocarbons, partially fluorine substituted aryl, partially fluorine substituted alkyl aryl, partially fluorine substituted aryl alkyl hydrocarbons, A humidifying device comprising one selected from the group consisting of perfluorinated aryl, perfluorinated alkyl aryl, and perfluorinated aryl alkyl hydrocarbons.
The method of claim 14,
And a hydrophobic mesopores layer between the hydrophobic macropores layer and the hydrophobic micropores layer.
The method of claim 19,
The hydrophobic macropores layer, at least one selected from the group consisting of metal oxide beads, porous alumina, pores formed silicon, fused silica formed pores, and a hydrophobic polymer, water collection apparatus in the air.
The method of claim 19,
The hydrophobic micropores layer may include molecular sieve, silica zeolite, aluminosilicate zeolite, dealulicate silicate zeolite, high-silica zeolite, gallosilicate, galgalsilicate, borosilicate, borosilicate, Deboron silicates, quasi all-silica zeolites, transition metal silicates, partially demetallic silicates, metal organic frameworks (MOFs), and modified or unmodified COF-1 The covalent organic framework (COF) of the molecular sieve is formed comprising a molecular sieve selected from the group consisting of molecular sieve, the apparatus for collecting water in the air.
The method of claim 19,
The hydrophobic molecular coating layer, a linear or branched C ₁ -C ₃₀ carbon atoms, branched hydrocarbons having a carbon number of C ₁ -C ₃₀ linear or branched portion fluorine-substituted hydrocarbons, linear or branched C ₁ -C ₃₀ carbon atoms in the branched perfluorinated Perfluorinated carbons, aryl, alkyl aryl, aryl alkyl hydrocarbons, partially fluorine substituted aryl, partially fluorine substituted alkyl aryl, partially fluorine substituted aryl alkyl hydrocarbons, A device for collecting water in air, comprising one selected from the group consisting of perfluorinated aryl, perfluorinated alkyl aryl, and perfluorinated aryl alkyl hydrocarbons.
The method of claim 19,
And a hydrophobic mesopores layer between said hydrophobic macropores layer and said hydrophobic micropores layer.

Images