JP2008261585A - Humidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vaporization filter capable of being promptly dried during operation stop, preventing dirt, bacteria, mold, etc. from entering to inside of the vaporization filter, easily removing dirt by cleaning and being kept clean, in the vaporization filter in a humidifier for performing humidification by vaporizing water. <P>SOLUTION: The humidifier 11 is provided with the vaporization filter 12 having air gaps through which air can pass, a water tank 14 for supplying water 17 to the vaporization filter 12 and a fan 13 for sending air to the vaporization filter 12, and hydrophobic processing is applied to the vaporization filter 12. Since the humidifier 11 prevents entry of water to inside of the vaporization filter 12 and dirt and propagation of bacteria inside the vaporization filter 12, the humidifier 11 can be easily cleaned and kept clean. Since water repels from the vaporization filter 12 due to application of the hydrophobic processing, prompt drying is achieved after humidifying operation is stopped, and propagation of bacteria on the vaporization filter 12 can be prevented. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a humidifier having a hydrophobic vaporization filter.

  An example of a conventional humidifier is shown in FIG. That is, the end surface of the sheet-shaped vaporization filter 101 deformed into a wave shape or a U-shape is immersed in the water tank 102, and the humidified air is passed by the fan 103 through the interval between the sheet-shaped vaporization filters 101 that sucked up water. Air is obtained (for example, refer to Patent Document 1).

In addition, a vaporizing filter mounted on this type of humidifier is impregnated with a synthetic resin emulsion containing a hydrophilic porous fine powder and an antibacterial agent in order to provide stable water absorption and antibacterial properties. In some cases, the hydrophilic porous fine powder and the antibacterial agent are attached to a base material through a synthetic resin. That is, as shown in FIG. 7 as an example, the vaporization filter 202 immersed in the water tank 201 carries a hydrophilic porous fine powder and an antibacterial agent on itself, and the vaporization filter 202 sucked up water Then, stable humidified air is obtained by bringing dry air into contact (see, for example, Patent Document 2).
Japanese Patent No. 2514145 Japanese Patent No. 3128581

  However, tap water is used for normal humidifiers. However, in a system in which dry air is passed through a vaporization filter that sucks up water, a trace amount containing elements such as silicon, calcium, and magnesium contained in the supplied tap water. The above compounds, bacteria, molds and the like enter the inside of the vaporizing filter, and there is a problem that even if washed, the stains are not easily removed and cannot be kept clean.

  In addition, in a vaporization filter made by impregnating a substrate with hydrophilic porous fine powder and synthetic resin emulsion, the hydrophilic porous fine powder strongly retains moisture, so that moisture is vaporized even after the humidification operation is stopped. There was a problem that bacteria and molds were easily propagated on the filter for a long time.

  The present invention solves such a problem, and provides a humidifier equipped with a vaporization filter that can be easily cleaned and kept clean without water entering the inside of the substrate. For the purpose. It is another object of the present invention to provide a humidifier equipped with a vaporization filter that can be dried in a short period of time after stopping the humidification operation and prevent the growth of bacteria and mold on the vaporization filter.

  The present invention relates to a humidifying device having a vaporization filter having a gap through which air can pass, water supply means for supplying water to the vaporization filter, and air blowing means for sending air to the vaporization filter. The present invention relates to a humidifier characterized by the above.

  Further, the vaporization filter is characterized in that the base material is hydrophobized.

  In addition, the vaporizing filter includes cloth or paper.

  Further, the vaporization filter is characterized in that an adhering material is carried on a base material.

  Further, the adhering material carried on the vaporization filter is a hydrophobic material.

  Further, the adhering material carried on the vaporizing filter is characterized in that a hydrophilic material is hydrophobized.

  Further, the hydrophobic treatment is a method of applying a hydrophobic treatment liquid.

  Further, the hydrophobization treatment liquid is characterized by containing one or more of a fluororesin polymer compound, a silicon resin polymer compound, a lipid, and an alkylsilane.

  Further, the present invention is characterized in that fine irregularities are provided on the surface of the substrate.

  Further, the present invention is characterized in that the fine particles are supported on a base material to form irregularities.

  Further, the particle diameter of the fine particles is 0.6 to 55 μm.

  In addition, an antibacterial material is added to the vaporization filter.

  Further, the water supply means sprays water on the vaporization filter.

  Further, the water supply means is disposed below the vaporization filter, and the vaporization filter rotates in contact with a part of the water supply means.

  Further, the vaporization filter is cylindrical.

  Moreover, the air heated by the air heating means is sent to the vaporization filter.

  According to the present invention, there is provided a humidifier equipped with a vaporization filter that can be easily cleaned and kept clean by making the vaporization filter hydrophobic so that water does not enter the inside of the substrate. it can. In addition, after the humidification operation is stopped, since the vaporization filter has a property that it is difficult to retain water, a humidifier equipped with a vaporization filter that can dry in a short time and prevent the growth of bacteria and mold on the vaporization filter is provided. Can be provided.

  The invention according to claim 1 of the present invention is a humidifying device having a vaporization filter having a gap through which air can pass, water supply means for supplying water to the vaporization filter, and air blowing means for sending air to the vaporization filter. The vaporization filter is made hydrophobic. Since the vaporization filter is hydrophobic, water does not enter the vaporization filter and can be easily washed and kept clean. In addition, after the humidification operation is stopped, the vaporization filter has the property that it is difficult to retain water, so it can be dried in a short time, preventing the growth of bacteria and mold on the vaporization filter, and keeping the vaporization filter clean. Has the effect of being able to. Moreover, since it is possible to prevent the growth of bacteria and fungi, there is an effect that it is possible to prevent the smell and dirt caused by the bacteria and fungi. By making the vaporization filter hydrophobic, it is possible to prevent water from being repelled from the vaporization filter and forming a water film that causes an increase in pressure loss in the gap of the vaporization filter, so that the static pressure of the vaporization filter does not increase. The fan can be reduced in size and power can be saved.

  In addition, the vaporization filter is characterized in that the base material is hydrophobized, and the base material processed into a porosity and size suitable for the purpose is hydrophobized so that water can be used as a base material. Since it does not enter the inside and the inside of the base material is not soiled and bacteria and mold do not propagate, it has an effect that it can be easily washed and the vaporization filter can be kept clean.

  Further, the vaporization filter includes cloth or paper. Since cloth and paper are easy to mold, it is possible to easily form a vaporization filter having a porosity and size suitable for the purpose. it can.

  Further, the vaporization filter is characterized in that the adhering material is supported on the base material, and by supporting the adhering material, the function of the adhering material can be added to the vaporizing filter. For example, if the attachment material is activated carbon, the effect of removing the odor-causing substance such as ammonia can be added to the vaporization filter.

  Further, the adhering material carried on the vaporization filter is a hydrophobic material, and the hydrophobicity of the vaporization filter can be easily controlled by controlling the amount of the hydrophobic material carried. In addition, the water adsorption function of hydrophobic materials can be added to the vaporization filter, and even if the water in the aquarium contains surfactants or lipids, they are adsorbed and kept clean. Has the effect of being able to.

  Further, the adhering material carried on the vaporization filter is characterized in that a hydrophilic material is hydrophobized, and the hydrophilic material is made by hydrophobizing the hydrophilic material. Can be added to the vaporization filter with an adsorbing / removing function of odor-causing substances such as ammonia, surfactants, minerals, etc., depending on the type, and the water tank can be kept clean.

  In addition, the hydrophobic treatment is a method of applying the hydrophobic treatment liquid, and the vaporization filter can be easily hydrophobicized by a simple operation of applying the hydrophobic treatment liquid to the vaporization filter. Has an effect. In addition, it has an effect that the degree of hydrophobicity of the vaporization filter and the portion to be hydrophobized can be easily controlled. In addition, when the vaporizing filter has an adhering material and a binder for supporting the adhering material, the adhering material and the binder part can also be hydrophobized, so that the entire vaporizing filter can be hydrophobized uniformly. Have

  Further, the hydrophobizing treatment liquid is characterized in that it contains any one or more of a fluororesin polymer compound, a silicon resin polymer compound, a lipid, and an alkylsilane. Since it has strong hydrophobicity, chemical resistance and heat resistance, a vaporization filter having strong hydrophobicity, chemical resistance and heat resistance can be obtained. In addition, since the fluororesin polymer compound is chemically stable, it has an effect that a vaporization filter having effects of hydrophobicity, chemical resistance and heat resistance can be obtained for a long time. Further, since a silicon resin polymer compound has strong oil resistance, oxidation resistance, and heat resistance, a vaporization filter having strong hydrophobicity, oil resistance, oxidation resistance, and heat resistance can be obtained. Moreover, if it is a lipid and an alkylsilane, it has the effect that hydrophobicity can be easily controlled by changing a carbon chain.

  Moreover, it is characterized by having fine irregularities on the surface of the substrate, and by adding fine irregularities to the surface of the hydrophobic vaporization filter, the hydrophobicity of the vaporization filter can be further enhanced. . By increasing the hydrophobicity, it is possible to prevent water from being repelled from the vaporization filter and to form a water film that causes an increase in pressure loss in the voids of the vaporization filter. It is possible to reduce the size and power consumption. In addition, since the surface area of the vaporization filter can be increased by forming irregularities, the contact area of dry air and water is increased, and higher humidification performance can be obtained.

  Further, it is characterized in that the fine particles are supported on the vaporization filter and provided with irregularities, and has an effect that the hydrophobicity can be easily controlled by controlling the size and amount of the fine particles. In addition, by selecting the type of fine particles, adsorption and removal functions such as ammonia and other odor-causing substances, surfactants, and minerals can be added to the vaporization filter, and the water tank can be kept clean. Have.

  The fine particles have a particle diameter of 0.6 to 55 μm, and the fine particles have a particle diameter of 0.6 to 55 μm, so that sufficient adhesion strength between the fine particles and the substrate can be obtained. Can do. In addition, since the surface area of the vaporization filter can be increased, the contact area of the dry air and water is increased, and it is possible to simultaneously achieve the effect that higher humidification performance can be obtained.

  Moreover, it is characterized by adding an antibacterial material to the vaporization filter, and it is possible to prevent bacteria from breeding, so that the vaporization filter can be kept clean. Moreover, the smell and dirt by propagation of bacteria can be prevented, and clean humidification can be performed. In addition, the propagation of bacteria in the water tank in contact with the vaporization filter can be prevented.

  In addition, the water supply means is characterized by spraying water on the vaporization filter, and by spraying water on the vaporization filter, the amount of water supplied to the vaporization filter can be easily controlled. Therefore, it is possible to provide the vaporizing filter with an optimal amount of water in accordance with the above, and it is possible to perform a highly efficient humidification operation.

  Further, the water supply means is arranged at the lower part of the vaporization filter, and the vaporization filter rotates in contact with part of the water, and the vaporization filter rotates in contact with part of the water supply means. Thus, water can be supplied to the vaporizing filter periodically and stably. In addition, since the vaporization filter rotates partially in contact with the water of the water supply means, dirt attached to the vaporization filter can be washed with water when water is supplied, so the vaporization filter is always clean. It has the effect that it can be maintained.

  In addition, the vaporization filter has a cylindrical shape. Since water uniformly contacts the vaporization filter when water is supplied, the water can be uniformly supplied to the entire vaporization filter. Humidification can be performed stably over a period of time. In addition, if the cylindrical vaporization filter rotates in contact with water, dirt attached to the vaporization filter can be washed with water in the aquarium when water is supplied, so the vaporization filter must always be kept clean. It has the effect that it can be maintained.

  A humidifying device characterized in that the air heated by the air heating means is sent to the vaporization filter. Since the dry air introduced into the device is heated, the saturated water vapor amount of the air passing through the vaporization filter increases. Thus, a higher humidification ability can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
A humidifier 11 whose schematic cross-sectional view is shown in FIG. 1 includes a vaporization filter 12 that has been subjected to a hydrophobic treatment, a fan 13 as a blowing means, and a water tank 14 as a water supply means, and the vaporization filter 12 and the fan 13. A heater 15 is disposed as an air heating means. The dry air 16 taken into the humidifying device 11 by the fan 13 is heated by the heater 15 and then comes into contact with the vaporizing filter 12 and passes through. At this time, the vaporization filter 12 receives the water 17 from the water tank 14 and is in a moist state, so that the water is vaporized, and humidified high-humidity air 18 is supplied to the downstream side. In the first embodiment, the vaporization filter 12 is made hydrophobic by applying a hydrophobic treatment to the vaporization filter 12.

  In the above configuration, since the vaporization filter 12 has been subjected to a hydrophobic treatment, water does not enter the vaporization filter 12 and the surface of the vaporization filter 12 is soiled, but the interior of the vaporization filter 12 is soiled or bacteria are present. Since it does not breed, it can be easily washed and kept clean.

  In addition, after the humidification operation is stopped, the vaporization filter 12 has a property that it is difficult to retain water. Therefore, the vaporization filter 12 can be dried in a short time to prevent the growth of bacteria and mold on the vaporization filter 12 and clean the vaporization filter 12. Can be kept in.

  Moreover, since the propagation of bacteria and mold can be prevented, the smell and dirt caused by the bacteria and mold can be prevented. Since the vaporization filter 12 is subjected to hydrophobic treatment, water can be prevented from being repelled from the vaporization filter 12 and forming a water film that causes an increase in pressure loss in the voids of the vaporization filter 12. The static pressure, which is the ventilation resistance of the filter 12, does not increase, and the fan can be reduced in size and power can be saved.

  As a water supply means, there is a method of spraying water on the vaporization filter 12. As a method of spraying water, there is a method of continuously supplying water from the upper part of the vaporization filter like the water tank 14 which is water supply means. By supplying water from the upper part of the vaporization filter 12, since water is automatically supplied to the vaporization filter 12 by gravity, a special apparatus is not required and a humidification apparatus can be made compact. In addition, there is a method of supplying water by spraying water on the vaporization filter 12, and in this method, water can be uniformly supplied to the vaporization filter 12, so that efficient humidification can be performed.

  Moreover, if the air heating means is used, the saturated vapor pressure increases, so that a higher humidification capability can be obtained. The air heating means does not necessarily have to be a heater, and may be anything that can heat air, such as a halogen lamp. Further, when a heater is not used, humidification can be performed with low power.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in an example of a cross section in FIG. 2, the vaporization filter 21 includes a non-woven fabric 22 and a frame 23 that have been subjected to a hydrophobic treatment, and a rotating shaft 24 is connected to the center thereof. The vaporization filter 21 has a cylindrical shape and can rotate around a rotation shaft 24. The lower part 47 which is the bottom part of the vaporization filter 21 is provided with a water tank 25 as water supply means, and the vaporization filter 21 rotates while immersing a part thereof in the water in the water tank, so that the water in the water tank 25 is transferred. It is picked up by the non-woven fabric 22 that has been subjected to hydrophobic treatment and spreads throughout the vaporization filter.

  In the above configuration, the substrate of the vaporization filter 21 is hydrophobized so that water does not enter the inside of the substrate of the vaporization filter 21 and the surface of the vaporization filter 21 is contaminated even when the substrate surface of the vaporization filter 21 is contaminated. Since the inside of the base material is not soiled or bacteria are propagated, it can be easily washed and kept clean. As a material of the base material of the vaporization filter 21, for example, resin, paper, cloth or the like can be used. Examples of resins include polyamides, polyimides, polyesters, polystyrenes, polyurethanes, polyolefins, polycarbonates, acrylics, celluloses, and copolymers and derivatives thereof, which are excellent in moldability. Further, if the vaporization filter subjected to the hydrophobic treatment includes cloth or paper, the cloth or paper can be easily molded. Therefore, a vaporization filter having a porosity and size suitable for the purpose can be easily molded.

  The shape of the vaporization filter 21 is not particularly limited as long as the vaporization filter 21 is configured to be able to supply water by rotating a part of the vaporization filter 21 in contact with water, but if the vaporization filter 21 is cylindrical, the vaporization filter 21 as a whole. Thus, water can be supplied uniformly, and humidification can be performed stably over a long period of time. Further, if the vaporization filter 21 is rotated in contact with a part of the water, dirt attached to the vaporization filter 21 can be washed with water in the water tank when water is supplied, so that the vaporization filter 21 is always kept clean. Can keep. When the vaporization filter 21 rotates in contact with a part of the water, since the water tank can be used as the water supply means, the humidifier main body can be made compact.

(Embodiment 3)
The same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in an example of a cross section in FIG. 3, the vaporization filter 31 is made of a hydrophobic material as an attachment material, and is made by hydrophobizing high-silica zeolite 32 that is fine particles and silica gel that is a hydrophilic material. Silica gel 33 and antibacterial material 34 are fixed to foamed urethane 37, which is a base material having voids 36, via a binder layer 35, so that the surface has fine irregularities.

  In the above configuration, activated carbon or a photocatalyst can be used as the additive. If the attachment material is activated carbon, effects such as removal of odor-causing substances such as ammonia can be added to the vaporization filter. Moreover, if it is a photocatalyst, even if a filter gets dirty, it can be decomposed | disassembled into organic substance by being exposed to light, and a vaporization filter can be kept clean.

  In addition, examples of the hydrophobic material include high silica zeolite, a hydrophobic metal, and a material obtained by hydrophobizing a hydrophilic material. A high silica zeolite having a silica / alumina ratio of 30 or more is suitable. By carrying the hydrophobic material on the filter, functions such as adsorption of impurities in water such as surfactants and lipids can be added to the vaporization filter, and the water in the water tank can be kept clean. If it is a high silica zeolite, an odor-causing substance, a surfactant, a mineral component and the like can be adsorbed and removed. When calcium ions and magnesium ions in water are adsorbed and removed, it is possible to prevent the scale from depositing on the vaporization filter and lowering the humidification efficiency, so that the lifetime of the vaporization filter can be extended.

  Hydrophilic materials to be hydrophobized include porous materials such as hydrophilic zeolite, talc, diatomaceous earth, magnesium hydroxide, calcium hydroxide, calcium fluoride, kaolin, allophane, silica, metals, materials with ion exchange capacity, etc. is there. Since these materials are excellent in heat resistance and moisture resistance and have little deterioration of the inorganic material itself, an effect of imparting durability to the vaporization filter can be obtained. Since the hydrophilic material is porous, it is not included in pure water (with a specific electrical resistance in the range of 1 to 10 MΩ · cm) such as bacteria, dead bodies, excess ions, mineral components, and surfactants. Since the impurities in the water can be adsorbed and removed in the holes, an effect that the water tank is hardly soiled can be obtained. In addition, if a material having a cation exchange capacity is used, it is possible to remove calcium ions and magnesium ions in water and prevent the scale from depositing on the vaporization filter and reducing the humidification efficiency. The effect that the lifetime of a filter can be extended is acquired. Moreover, if what has anion exchange ability is used, an anion, such as a chloride ion in water, can be removed and the effect that clean humidification can be performed is acquired. As a method for hydrophobizing the hydrophilic material, a known method such as silane treatment can be used.

  The type of the binder is not particularly limited, and examples of the synthetic resin include vinyl chloride, vinyl acetate, acrylic, and those obtained by polymerizing colloidal silica. By using these synthetic resins as a binder, the adhesive strength between the adhering material and the filter base material can be obtained, and the adhering material can be prevented from peeling off from the vaporized filter. When the synthetic resin is acrylic, acrylic has excellent water resistance, and thus has an effect of improving the water resistance of the vaporization filter exposed to water for a long time and extending the life. In addition, since acrylic is polymerized, the base material and the adhering material are connected by a plurality of functional groups, high adhesive strength is obtained, and the supported adhering material is prevented from being peeled off. In addition, since acrylic is a chemically stable substance, even if it is left for a long time, it does not easily undergo modification such as gelation, and is excellent in workability.

  Further, if a synthetic resin emulsion is used as the binder, it can be used by being dispersed in water, so that the effects of easy dilution and stirring and excellent workability can be obtained. The method of supporting the adhering material using the synthetic resin emulsion is that the synthetic resin emulsion, the adhering material, water, and a polar solvent other than water are mixed in advance at an arbitrary ratio, and the treatment liquid is applied to the substrate surface. There are a method of coating, a method of forming a synthetic resin layer on the surface of a substrate, and then a method of supporting an additive. In a method in which a synthetic resin emulsion, an additive, water, and a polar solvent other than water are mixed in advance and applied to the surface of the substrate, the filter substrate is immersed in the treatment solution to immerse the substrate in the surface of the substrate. A mixed film of an additive and a binder can be formed. At this time, since a film is formed on the surface of the base material, the adhering material is easily supported uniformly.

  In addition, a treatment liquid in which an additive, a synthetic resin emulsion, water, and a polar solvent other than water are mixed can be sprayed on the substrate using a spray or the like. At this time, since it can carry | support so that an attachment material may be piled up on the base-material surface, a desired quantity of attachment materials can be carry | supported easily. In the method of applying a binder, water, and a polar solvent other than water to the surface of the base material, and forming the synthetic resin layer and supporting the additive, the particles are not embedded in the synthetic resin emulsion, and the additive is uniformly applied. There is an advantage that can be carried. In either case, the affinity between the treatment solution and the substrate can be increased by arbitrarily adjusting the synthetic resin emulsion, water, and a polar solvent other than water, such as ethanol. Since the liquid can be applied, the surface area of the vaporization filter can be increased, and the humidification efficiency can be improved.

  The fine particles are not particularly limited as long as fine irregularities can be formed on the filter surface. For example, when the fine particles have a particle diameter of 0.6 to 55 μm, the adhesion strength between the fine particles and the substrate is sufficient. Is obtained. Moreover, since the surface area of the vaporization filter can be increased, the contact area of dry air and water is increased, and an effect that higher humidification performance can be obtained can also be obtained. Further, the hydrophobicity can be easily controlled by controlling the size and amount of the fine particles.

  Moreover, by including an antibacterial material, it is possible to prevent bacteria and molds from propagating on the vaporizing filter, and the vaporizing filter can be kept clean. Although it does not specifically limit as an antibacterial material, For example, as an antibacterial agent, the inorganic compound which elutes metal ions, such as silver, copper, and zinc, the metal fine particle of silver, copper, and zinc, silver zeolite, silver containing zirconium phosphate, iodine compounds , Phenols, quaternary ammonium salts, imidazole compounds, benzoic acids, hydrogen peroxide, cresol, chlorhexidine, irgasan, aldehydes, sorbic acid and other drugs, lysozyme, cellulase, protease and other enzyme preparations, catechins, bamboo Examples include natural component extracts such as extracts, Japanese cypress extracts, wasabi extracts and mustard extracts. Examples of the fungicide include organic nitrogen compounds, sulfur compounds, organic acid esters, organic iodine imidazole compounds, and benzazole compounds.

  In addition, the shape of the filter is not particularly defined as long as it has a gap. However, for example, if the substrate is a three-dimensional network structure, the surface area of the substrate is increased, so that the dry air and the water on the vaporization filter are not separated. A contact area becomes large and humidification efficiency can be improved. In addition, since the opening area is large and clogging is unlikely to occur even if the scale is deposited on the vaporizing filter, an effect that the air passage is hardly obstructed can be obtained. Moreover, the net-like structure can obtain an effect that a lot of water can be retained at one time. As the three-dimensional network structure, there are a shape in which fibers are entangled and a foamed shape. For example, in a shape in which fibers are entangled, steel wool, a three-dimensional three-dimensional knitted fabric composed of a front surface portion, a connecting portion, and a back surface portion can be cited. Examples of the shape include foam metal, foam resin, and ceramic foam.

(Embodiment 4)
The same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in an example of a cross section in FIG. 4, the vaporization filter 41 fixes the hydrophilic zeolite 42 as the adhering material to the foamed urethane 45 as the base material having the voids 44 through the binder layer 43, and from above A hydrophobizing treatment liquid containing a fluororesin-based polymer compound is applied and dried to form a fluororesin layer 46, which is hydrophobized.

  In the above configuration, the application of the hydrophobizing treatment liquid to the vaporization filter is easy to hydrophobize the vaporization filter because the hydrophobization treatment liquid is not easily denatured such as gelation even when left for a long period of time and has excellent workability. Has an effect. In addition, the degree of hydrophobicity of the vaporization filter and the portion to be hydrophobized can be easily controlled.

  In addition, if the hydrophobizing treatment liquid contains any of fluororesin-based polymer compounds, silicon resin-based polymer compounds, lipids, and alkylsilanes, if it is a fluororesin-based polymer compound, strong hydrophobicity, chemical resistance, Since it has heat resistance, a vaporized filter having strong hydrophobicity, chemical resistance, and heat resistance can be obtained. Further, since the fluororesin polymer compound is chemically stable, a vaporization filter having effects of hydrophobicity, chemical resistance, and heat resistance for a long time can be obtained. Further, since a silicon resin polymer compound has strong oil resistance, oxidation resistance, and heat resistance, a vaporization filter having strong hydrophobicity, oil resistance, oxidation resistance, and heat resistance can be obtained. In the case of lipids and alkylsilanes, the hydrophobicity can be easily controlled by changing the carbon chain.

  EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is limited to the following description and is not interpreted at all.

Example 1
The acrylic emulsion containing colloidal silica was diluted 10 times with a solution in which water: isopropyl alcohol was mixed at a volume ratio of 1: 1. Hydrophobized silica gel and hydrophilic zeolite were added to each of them and stirred to obtain a treatment liquid. The prepared treatment liquid was sprayed on both the front and back surfaces of the polyurethane foam having a three-dimensional network structure. Then, it was made to dry for 20 minutes at about 100 degreeC, and the vaporization filter was created.

  Table 1 shows the amount of water retained per unit volume of a filter in which silica gel subjected to a hydrophobization treatment and hydrophilic zeolite are supported by spraying. It can be seen that the amount of water retained per unit volume of the filter is less by about 14% in the silica gel subjected to the hydrophobization treatment than the hydrophilic zeolite. Since the heat of vaporization of water does not depend on the filter, it can be said that the silica gel filter subjected to the hydrophobization treatment requires about 14% and the drying time is shorter than that of the hydrophilic zeolite filter. That is, it can be said that the filter carrying the hydrophobized silica gel has higher humidification efficiency because it dehydrates more quickly.

(Example 2)
A vaporization filter was prepared in the same procedure as in Example 1 using the additive materials having different average particle diameters. The created vaporization filter was incorporated into a water supply means for supplying water by a rotating mechanism as shown in FIG. 2, a humidifier having a blower and a heater for sending air to the vaporization filter, and controlled to 20 ° C. and a humidity of 30%. FIG. 5 shows the relationship between the average particle diameter of the additive and the humidification amount when the humidification operation is performed indoors. As the average particle diameter increases, the humidification amount increases and the maximum humidification amount is obtained in the vicinity of 4 to 15 μm.

  According to the present invention, it is possible to provide a humidifier that can keep the vaporizing filter clean, and it can also be applied to household and commercial humidifiers.

1 is a schematic cross-sectional view of a humidifier according to Embodiment 1 of the present invention. Schematic sectional view of the vaporization filter of the second embodiment Schematic sectional view of the vaporization filter of the third embodiment Schematic sectional view of the vaporization filter of the fourth embodiment The figure which shows the relationship between the particle diameter of the adhering material of the Example 2, and the humidification amount Schematic perspective view of conventional humidifier Sectional view of a conventional vaporization filter attached to a water tank

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Humidifier 12 Evaporation filter 13 Fan 14 Water tank 15 Heater 16 Dry air 17 Water 18 High humidity air 21 Evaporation filter 22 Hydrophobized nonwoven fabric 23 Frame 24 Rotating shaft 25 Water tank 31 Evaporation filter 32 High silica zeolite 33 Hydrophobized silica gel 34 Antibacterial material 35 Binder layer 36 Void 37 Foamed urethane 41 Vaporized filter 42 Hydrophilic zeolite 43 Binder layer 44 Void 45 Foamed urethane 46 Fluororesin layer 47 Lower part 101 Vaporized filter 102 Water tank 103 Fan 201 Water tank 202 Vaporized filter

Claims (16)

In a humidifying device having a vaporization filter having a gap through which air can pass, water supply means for supplying water to the vaporization filter, and air blowing means for sending air to the vaporization filter, the vaporization filter is made hydrophobic. Humidifying device. 2. The humidifying device according to claim 1, wherein the vaporizing filter is obtained by hydrophobizing a base material. The humidifying device according to claim 1 or 2, wherein the vaporizing filter includes cloth or paper. The humidifying device according to any one of claims 1 to 3, wherein the vaporizing filter is one in which an adhering material is supported on a base material. The humidifying device according to claim 4, wherein the adhering material carried on the vaporizing filter is a hydrophobic material. 5. The humidifying device according to claim 4, wherein the adhering material carried on the vaporizing filter is a hydrophobized hydrophilic material. The humidifying device according to any one of claims 2 to 6, wherein the hydrophobizing treatment is a method of applying a hydrophobizing treatment liquid. 8. The vaporization filter according to claim 7, wherein the hydrophobizing treatment liquid contains at least one of a fluororesin polymer compound, a silicon resin polymer compound, a lipid, and an alkylsilane. The vaporization filter according to any one of claims 2 to 8, wherein the hydrophobization treatment gives fine irregularities to the surface of the substrate. The vaporization filter according to claim 9, wherein the fine particles are supported on a base material to form irregularities. The vaporization filter according to claim 10, wherein the particle diameter of the fine particles is 0.6 to 55 μm. The humidifying device according to any one of claims 1 to 11, wherein an antibacterial material is added to the vaporizing filter. The humidifier according to any one of claims 1 to 12, wherein the water supply means sprays water on the vaporization filter. The humidifier according to any one of claims 1 to 13, wherein the water supply means is disposed below the vaporization filter, and the vaporization filter rotates in contact with a part of the water supply means. The humidifying device according to any one of claims 1 to 14, wherein the vaporizing filter has a cylindrical shape. The humidifier according to any one of claims 1 to 15, wherein the air heated by the air heating means is sent to a vaporizing filter.

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