JP2008073152A - Drying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drying device which can be kept its body clean, and is used for drying wet dishes, clothing, fingers or the like by using clean air without germs, while a drying chamber or a space where the body is installed can be deodorized by operation of the drying device. <P>SOLUTION: The drying device has a photocatalyst layer 3 formed around the drying chamber 2 for drying wet things, a blowing port 4 for blowing air to the drying chamber 2, a blower 5 for supplying air, and an air passage 6. A photocatalyst filter 7 and a lamp 8 for exciting a photocatalyst are provided inside the air passage 6. After light of the lamp 8 passes through the photocatalyst filter 7, the photocatalyst layer 3 is irradiated with the light for supplying clean air to the drying chamber 2 so that the body is kept clean. Deodorization of a room is performed by blowing air to and irradiating the photocatalyst filter 7 with light. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drying apparatus that dries wet items such as tableware, clothes, and fingers inserted in a drying chamber, and particularly relates to a method for deodorizing dry air and disinfecting a main body.

  Conventionally, as a method for drying a wet hand after washing without wiping with a towel or a handkerchief, a method of spraying a high-speed air stream to blow off moisture has been used. For example, in the conventional finger drying apparatus described in Patent Document 1 below, as shown in FIG. 5, the air introduced from the air inlet 101 is pressurized by a high-pressure air flow generator 103 controlled by a control circuit 102, and high-speed air is supplied. This is a finger drying device 104 that converts the flow into a flow and blows and dries the moisture adhering to the hand by this high-speed air flow, and the suction port 101 of the high-pressure air flow generation unit 103 has a series of outlets 105 and 106. The air purifier 108 is arranged in the air passage 107 and can be connected to the outlet 105 of the air passage 107 of the air cleaner 109 having a small pressure loss. The air cleaning means 108 is composed of a pre-filter and a deodorizing filter. The air sucked from the inlet 106 passes through the air cleaning means 108 to remove dust and odors. 103, is blown out as a clean high-speed air flow from the air nozzle 110, and blows off moisture such as fingers wet in the water inserted into the drying chamber 111 to be dried.

Moreover, in the apparatus which dries the wet hand after washing | cleaning, as a finger drying apparatus which improved the cleanliness more, as shown in the following literature 2, for example, as shown in FIG. A wastewater tank 201 is provided, and an antibacterial agent 203 is applied or kneaded or a granular antibacterial agent 204 is disposed on the inner wall surface of the path from the manual insertion portion 202 to the wastewater tank 201 to prevent bacterial growth. .
JP 2002-306370 A JP 2003-275129 A

  In the method of Patent Document 1, since the suction air that has passed through the air cleaning means consisting of a prefilter and a deodorizing filter is used, dust and odor contained in the blown air stream can be removed. Had no effect. Sebum components adhering to the hand and residual residue of the detergent during hand washing adhere to the body together with the blown water. If left in this state, germs and molds may grow on the surface of the main body, which is not preferable from a hygienic standpoint. Therefore, a more sanitary method for sterilizing the main body has been demanded.

  In addition, in the method described in Patent Document 2, in order to prevent the growth of bacteria, an antibacterial agent is applied or kneaded or a granular antibacterial agent is disposed on the inner wall surface of the path from the manual insertion portion to the water tank. Although it is intended to prevent breeding, there is a problem that when the active ingredient of the antibacterial agent is eluted, the antibacterial effect does not work and the duration of the effect is short.

  In order to solve the above-mentioned problems, the present invention provides a drying apparatus capable of quickly drying a wet thing such as tableware, clothes and fingers with clean air that does not contain germs and keeping the main body clean. It is an object. Moreover, it aims at providing the drying apparatus which can deodorize the space where the drying chamber and the main body are installed by driving | operation.

  In order to achieve the above object, a drying apparatus according to the present invention provides a drying chamber for drying a wet one, a photocatalyst layer provided on a surface of a member constituting the drying chamber, and the drying device. An air outlet for blowing air into the chamber; an air supply means for supplying air to the outlet; and a ventilation path connecting the air supply means and the drying chamber; and the photocatalytic filter and the photocatalyst are excited in the ventilation path. A light source is provided, and the light emitted from the light source passes through the photocatalytic filter and is then applied to the photocatalyst layer in the drying chamber.

  In addition, the drying apparatus of the present invention is characterized in that the light irradiated from the light source is attenuated by passing through the photocatalytic filter.

  Further, the drying apparatus of the present invention includes a drying chamber for drying a wet one, a photocatalyst layer provided on a surface of a member constituting the drying chamber, a blowout port for blowing air into the drying chamber, and the blowout port Air supply means for supplying air to the air, and a ventilation path connecting the air supply means and the drying chamber, and a photocatalytic filter and a light source for exciting the photocatalyst are provided in the ventilation path, and light irradiated to the photocatalytic filter Is characterized by being stronger than the intensity of ultraviolet rays irradiated to the photocatalyst layer in the drying chamber.

Moreover, the drying apparatus of the present invention is characterized in that the ultraviolet intensity of the surface of the photocatalyst layer constituting the drying chamber is 0.001 mW / cm ² or more.

  Further, the drying apparatus of the present invention is characterized in that the light source is arranged so that it cannot be directly viewed from the outside of the main body of the drying apparatus.

  Moreover, the drying apparatus of the present invention is characterized in that the photocatalytic filter has a slit shape or a honeycomb shape.

  The drying apparatus of the present invention is characterized in that the photocatalyst constituting the photocatalyst filter and the photocatalyst layer contains titanium oxide.

  In the drying apparatus of the present invention, the photocatalyst includes any one or more antibacterial metals selected from Ag, Cu, Zn, Ni, and Cr.

  In the drying apparatus of the present invention, the photocatalytic filter includes an adsorbent and a photocatalyst.

  The drying apparatus of the present invention is characterized in that a photocatalyst is dispersed on the surface of the adsorbent.

  In the drying apparatus of the present invention, the adsorbent contains any one or more selected from activated carbon, zeolite, sepiolite, manganese compound, and cobalt compound.

  The drying apparatus of the present invention is characterized in that the photocatalyst is fixed with a silicon compound.

  In addition, the drying apparatus of the present invention is characterized by including a holder for fixing the one inserted into the drying chamber.

  In addition, the drying apparatus of the present invention is characterized in that at least a part of the holder is made of a light transmissive material.

  The drying apparatus of the present invention is characterized in that a photocatalyst layer is provided on the surface of the holder.

  According to the present invention, it is possible to provide a drying device that can quickly dry a wet tableware, clothes, fingers, and other water-like items with clean air that does not contain germs and can keep the main body clean. Moreover, the drying apparatus which can deodorize the space in which the drying chamber and the main body are installed by driving | operation can be provided.

  In order to achieve the above object, the surface treatment method of the present invention dries a wet chamber, a photocatalyst layer provided on the surface of a member constituting the drying chamber, and a blowout for blowing air into the drying chamber. An air supply means for supplying air to the outlet, and a ventilation path connecting the air supply means and a drying chamber, and a photocatalytic filter and a light source for exciting the photocatalyst are provided in the ventilation path, and The light emitted from the light source passes through the photocatalytic filter, and is then applied to the photocatalyst layer in the drying chamber. As a result, the air sent from the air supply means is deodorized and sterilized by the action of the photocatalytic filter, and clean air can be supplied to the outlet, and the wet things in the drying chamber can be dried cleanly. Can do. In addition, since air sterilized by the photocatalytic filter enters the drying chamber, germs are unlikely to enter the drying chamber, the drying chamber can be filled with clean air, and the photocatalyst layer provided on the surface of the member constituting the drying chamber Since the drying chamber is sterilized and deodorized by the action of the above, the drying chamber can be kept clean. In addition, since the photocatalytic filter and the photocatalytic layer can be irradiated simultaneously with one light source, the structure of the apparatus can be simplified and power consumption can be reduced as compared with the case where a plurality of light sources are provided.

  In addition, the light emitted from the light source is attenuated by passing through the photocatalytic filter, and a strong light is applied to the photocatalytic filter to obtain a sufficient deodorizing effect. Bactericidal effect can be obtained by applying weak light. Further, since the light is attenuated by the photocatalytic filter, it has an effect that it is not dazzled when viewed from the downstream side of the photocatalytic filter.

  Also, a drying chamber for drying wet materials, a photocatalyst layer provided on the surface of a member constituting the drying chamber, a blowout port for blowing air into the drying chamber, and an air supply for supplying air to the blowout port And a ventilation path that connects the air supply means and the drying chamber, and a photocatalytic filter and a light source that excites the photocatalyst are provided in the ventilation path, and the ultraviolet intensity of the light irradiated to the photocatalytic filter is determined by the drying chamber. It is characterized by being stronger than the intensity of ultraviolet rays irradiated to the photocatalyst layer, and it is sterilized by applying strong light to the photocatalyst filter to obtain a sufficient deodorizing effect and applying weak light to the members constituting the drying chamber An effect can be obtained.

Further, the ultraviolet intensity of the surface of the photocatalyst layer constituting the drying chamber is 0.001 mW / cm ² or more, and a sufficient sterilizing effect can be obtained by irradiating with an ultraviolet intensity higher than this. Has the effect of being able to. In addition, the resin generally deteriorates due to strong ultraviolet rays. However, in the present invention, weak ultraviolet rays are applied to the members constituting the drying chamber. Therefore, even if the drying chamber is made of resin, the deterioration is difficult to proceed. A drying apparatus having excellent properties can be obtained. Here, 0.001 mW / cm ² is an indoor level irradiated with a fluorescent lamp, and is an environment where a resin product can be used practically.

  In addition, the light source is arranged so that it cannot be seen directly from the outside of the main body of the drying device, and since the light source cannot be seen directly, the influence on the human body such as cataract is reduced, and it also looks Has the effect of not being dazzling.

  In addition, the photocatalytic filter has a slit shape or a honeycomb shape, and light is blocked except in the slit or honeycomb opening direction, so that a structure in which the light source cannot be directly viewed from the outside of the main body can be easily obtained. Can do. In addition, since the air flow is rectified and the wet object is uniformly blown with air, the air can be efficiently dried.

  In addition, the photocatalyst constituting the photocatalyst filter and the photocatalyst layer is characterized by containing titanium oxide, and an inexpensive and high-performance photocatalyst filter and photocatalyst layer can be obtained.

  In addition, the photocatalyst includes any one or more antibacterial metals selected from Ag, Cu, Zn, Ni, and Cr, and exhibits antibacterial properties even when the light from the light source is not irradiated. Therefore, even when dust or sand adheres to the surface of the photocatalyst, it is possible to suppress the growth of fungi and mold.

  In addition, the photocatalytic filter is characterized by containing an adsorbent and a photocatalyst, and the odor is adsorbed by the adsorbent and the reaction between the photocatalyst and the odor occurs in a highly concentrated state, thereby improving the deodorization efficiency. It has the effect of being able to. Further, the deodorizing action can be exhibited even when the light from the light source is not irradiated, such as when the drying apparatus is stopped.

  In addition, it is characterized in that the photocatalyst is dispersed on the surface of the adsorbent, and since the adsorbent and the photocatalyst are located close to each other, the adsorbent can absorb the odor adsorbed quickly and has a deodorizing efficiency. .

  Further, the adsorbent contains one or more selected from activated carbon, zeolite, sepiolite, manganese compound, and cobalt compound, and has a high odor adsorption performance, so that a photocatalytic filter with good deodorization performance is obtained. It has the effect of being able to.

  The photocatalyst is immobilized with a silicon compound. The photocatalyst is immobilized and the light irradiated with the silicon compound is diffusely reflected, so that the photocatalyst is efficiently irradiated with light. Can do. Moreover, since the hardness and smoothness of the surface are improved by covering the surface of the member constituting the drying chamber with the silicon compound, it is possible to obtain a drying chamber that is easy to clean and is not easily soiled.

  In addition, it is characterized by having a holder for fixing what is inserted in the drying chamber, because there is no fear of moving wet things in the drying chamber even if high-speed dry air is hit, It has the effect that it can be dried safely.

  In addition, at least a part of the holder is made of a light transmissive material. Since the holder is light transmissive, the light from the light source can be shaded on the holder. The photocatalyst layer of the part has the effect of being less likely to stop working.

  In addition, a photocatalyst layer is provided on the surface of the holder, and has an action of decomposing dirt adhering to the holder and suppressing proliferation of germs.

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

(Embodiment 1)
As shown in FIG. 1, the dryer according to the present invention includes a drying chamber 2 that dries a wet main body 1, a photocatalyst layer 3 formed on the surface of a member constituting the drying chamber 2, and the drying chamber 2. An air outlet 4 for blowing air; a blower 5 as air supply means for supplying air to the air outlet 4; and a ventilation path 6 for connecting the blower 5 and the drying chamber 2 as the air supply means. A photocatalyst filter 7 and a lamp 8 as a light source for exciting the photocatalyst are provided in the path 6, and light irradiated from the lamp 8 as the light source passes through the photocatalyst filter 7, and then is applied to the photocatalyst layer 3 in the drying chamber 2. It is characterized by being irradiated. When the wet hand after cleaning is inserted into the drying chamber 2, the sensor 9 detects it and the blower 5 is activated to generate a high-speed air flow. The generated airflow blows out from the blowout opening 4 through the ventilation path 6 and hits the hand, and water droplets attached to the hand are blown off and adheres to the surface of the lower photocatalyst layer 3. Since the photocatalyst layer 3 is gently inclined toward the bottom, water droplets are collected in the water receiver 10 by the action of gravity. At this time, since the air passage 6 is provided with the photocatalytic filter 7 and the lamp 8, the passing air is sterilized by the photocatalytic filter 7 such as floating bacteria and mold and deodorized odor components, and the clean air is dried. It is supplied to the chamber 2. In addition, sebum components adhering to the hand and residual residue of the detergent at the time of hand washing adhere to the photocatalyst layer 3 together with the blown water, and if left in this state, germs and molds are formed on the surface of the photocatalyst layer 3. In the present invention, the light of the lamp 8 is irradiated on the photocatalyst layer 3 to suppress the growth of bacteria and fungi, and the organic matter such as sebum is decomposed to suppress the accumulation of dirt. It can be kept clean. Moreover, even when no object is inserted in the drying chamber 2, the interior of the room in which the drying apparatus is installed can be deodorized by blowing air and applying light to the photocatalytic filter 7.

  As in the conventional example, the method of applying or kneading the antibacterial agent to the wall surface of the drying chamber 2 can similarly prevent the growth of bacteria, but if the active ingredient of the antibacterial agent is eluted, the antibacterial effect is improved. There was a problem that the duration of the effect was short because it stopped working. In the present invention, since the antibacterial effect is exhibited by the catalytic action, the effect due to the elution of the components is not attenuated, and the drying chamber 2 can be kept clean for a long period of time. In order to exhibit the effect of the photocatalyst layer 3, there is no problem even if indoor light is used in combination.

  In the deodorization by the photocatalyst filter, the deodorization performance is enhanced as the ultraviolet intensity is increased. This is because the photocatalyst generates active species such as OH radicals according to the amount of light. In particular, in order to quickly decompose high-concentration gas, it is necessary to generate a large amount of active species with strong light energy. On the other hand, sterilization with a photocatalyst does not need to completely decompose the fungus, and the fungicidal effect is exhibited by inhibiting the functions necessary for the growth of the fungus by active species such as OH radicals or damaging some cells. Therefore, the amount of ultraviolet light may be small. As in the present invention, by first irradiating the photocatalytic filter with light generated from a light source to exert a deodorizing effect, by exerting a bactericidal effect by applying light attenuated through the photocatalytic filter to the photocatalyst layer, A deodorizing effect and a sterilizing effect can be efficiently obtained with one light source. In addition, since only one light source is required, the apparatus can be simplified.

The following experiment was conducted to investigate the relationship between the deodorizing performance of the photocatalytic filter and the UV intensity. A photocatalytic filter containing titanium oxide as a photocatalyst and a lamp were placed in a 3 L test box, shielded from external light, and then acetaldehyde gas was introduced so that the initial concentration was 100 ppm. After 120 minutes, the lamp was turned on and the photocatalytic filter was irradiated with light. Lamps used black light and fluorescent lamp, respectively, ultraviolet intensity former 1 mW / cm ^2, the latter was 0.01 mW / cm ^2. The gas concentration in the test box was measured by gas chromatography. The results are shown in FIG. Without the photocatalytic filter, the gas concentration gradually decreased due to adsorption to the test box wall and diffusion outside the container. In the case with a photocatalytic filter, a decrease in gas concentration due to adsorption was observed even in the dark. After 120 minutes, when light was irradiated at an ultraviolet intensity of 1 mW / cm ² , it was found that the gas concentration fell below the detection limit in about 35 minutes and gas decomposition by the photocatalyst occurred. On the other hand, when the ultraviolet intensity was 0.01 mW / cm ² , gas decomposition occurred in the same manner, but the rate of decrease was slow. From this, it was found that odor decomposition occurred in a shorter time when irradiated with strong ultraviolet rays.

From the water supply standard, tap water of 100 / ml or less is present, and since 10 ⁵ to 10 ⁷ bacteria are present in the human hand as resident bacteria, blow away from the hand. The water droplets attached to the photocatalyst layer 3 contain 10 ² / ml to 10 ⁴ / ml bacteria. In addition, the blown-off water contains nutrients for fungi, such as soap dust and sebum, and in this state, the fungus grows over time, producing odors, sliminess, and foul odors. There is a fear. Therefore, in order to examine the change in the number of bacteria when ultraviolet rays were applied to the bacteria attached to the photocatalyst layer, an experiment was conducted according to the following procedure. A 5 cm square resin plate coated with a photocatalyst was prepared from Staphylococcus aureus (S. aureus, NBRC. 12732) prepared in a bouillon liquid medium diluted to 1/500 to add a small amount of nutrients to 10 ⁵ cells / ml. Was inoculated with 0.15 ml. Thereafter, ultraviolet rays were irradiated under each condition, and changes in the number of bacteria after 0, 8, and 24 hours were examined. The number of bacteria was measured by culturing at 37 ° C. for 24 hours using a standard agar medium. The results are shown in FIG. When the UV intensity was zero, the number of bacteria increased slightly. On the other hand, it was found that the number of bacteria decreased when irradiated with ultraviolet light, and the longer the irradiation time and the stronger the ultraviolet intensity, the stronger the bactericidal effect. Further, it was found that the intensity of ultraviolet rays applied to the photocatalyst layer may be 0.001 mW / cm ² or more. The optimum intensity and irradiation time for the drying apparatus may be selected depending on the amount of water droplets deposited and the intensity of ultraviolet light applied to the photocatalyst layer, but it is considered that 0.1 mW / cm ² or less is sufficient. By using this amount of ultraviolet light, not only can a sterilizing effect be obtained, but also the effect that the deterioration of the resin due to ultraviolet light can be reduced can be obtained.

  Since the lamp 8 as the light source is installed inside the ventilation path 6, it cannot be directly viewed from the outside of the main body of the drying apparatus. Even a short person or a child does not look directly at the light source, thereby reducing the effects on the human body such as cataracts and making it look dull.

  By making the photocatalytic filter 7 into a slit shape or a honeycomb shape, light is blocked except in the slit or honeycomb opening direction, so that a structure in which the light source cannot be directly viewed from the outside of the main body can be obtained. In addition, since the air flow is rectified and the wind is uniformly applied to the wet object inserted in the drying chamber, the air can be efficiently dried.

  Examples of the photocatalyst constituting the photocatalyst filter and the photocatalyst layer include tin oxide, zinc oxide, tungsten trioxide, titanium oxide, strontium titanate, iron oxide, and bismuth oxide, zinc sulfide, cadmium sulfide, molybdenum sulfide, and the like. Examples thereof include nitrides such as metal sulfides and titanium nitrides, and titanium oxide is preferred from the viewpoint of safety and economy.

  Examples of titanium oxide include titanium dioxide, hydrous titanium oxide, hydrated titanium oxide, metatitanic acid, orthotitanic acid, titanium hydroxide, oxygen-deficient titanium oxide, and the like. The crystal form is not particularly limited as long as it has photocatalytic activity, and any of an amorphous form, anatase form, rutile form, and brookite form may be used. There is no problem even if components having different crystal forms such as a combination of rutile type and anatase type titanium oxide are combined.

  The photocatalyst may contain any one or more antibacterial metals selected from Ag, Cu, Zn, Ni, and Cr, and exhibits antibacterial properties even in the absence of light from the light source. Even when dust or sand adheres, the growth of fungi and mold can be suppressed. Note that there is no problem even if an inorganic compound such as silver zeolite or silver-containing zirconium phosphate that elutes metal ions such as silver, copper, and zinc is used instead of metal.

  The photocatalyst filter 7 may contain an adsorbent and a photocatalyst. Since the reaction between the photocatalyst and the odor occurs in a state where the odor is adsorbed by the adsorbent and concentrated to a high concentration, the deodorization efficiency can be improved. Further, the deodorizing action can be exhibited even when the light from the light source is not irradiated, such as when the drying apparatus is stopped. Examples of the adsorbent include activated carbon, zeolite, sepiolite, manganese compound, cobalt compound, diatomaceous earth, and hydrophobized silica gel. Particularly, zeolite has high odor adsorption performance and is not susceptible to decomposition by a photocatalyst. It is.

  A silicon compound may be used for immobilizing the photocatalyst. Since the silicon compound immobilizes the photocatalyst and diffusely reflects the irradiated light, light can be efficiently applied to the photocatalyst. Moreover, since the hardness and smoothness of the surface are improved by covering the surface of the member constituting the drying chamber with the silicon compound, it is possible to obtain a drying chamber that is easy to clean and is not easily soiled. Examples of the silicon compound include silica sol, sodium silicate, potassium silicate, lithium silicate, and a hydrolyzate of a silicate compound. Examples of the silicate compound include tetraethoxysilane and its polymer, methoxypolysiloxane, ethoxypolysiloxane, butoxypolysiloxane, lithium silicate, and the like. These metal alkoxides are hydrolyzed with water and an acid or a base, It can be used as a fixing agent. There is no problem even if a silicone resin is used. The photocatalyst can be fixed by mixing these silicon compounds and the photocatalyst, applying them to a drying device or a photocatalytic filter, and drying them.

(Embodiment 2)
FIG. 4 is an example of the drying apparatus of the present invention. As shown in FIG. 4, a drying chamber 21 for drying a wet main body 20, a photocatalyst layer 22 formed on the surface of a member constituting the drying chamber 21, and an outlet 23 for blowing air into the drying chamber 21. And a fan 24 as air supply means for supplying air to the outlet 23, and a ventilation path 25 connecting the fan 24 as the air supply means and the drying chamber 21, and a photocatalytic filter 26 is provided in the ventilation path 25. And a lamp 27 as a light source for exciting the photocatalyst, and the light emitted from the lamp 27 as the light source passes through the photocatalyst filter 26 and then irradiates the photocatalyst layer 22 of the drying chamber 21. It is what. When the dishes after washing are set in a basket 28 as a holding tool installed in the drying chamber 21 and the lid 29 is closed, the fan 24 is activated to generate a high-speed air flow. The generated air flow blows out from the blowout opening 23 through the ventilation path 25 and hits the dishes, and the water droplets attached to the dishes are blown off and adheres to the surface of the lower photocatalyst layer 22. Since the photocatalyst layer 22 is gently inclined toward the bottom, water droplets are collected in the water receiver 30 by the action of gravity. At this time, since the air passage 25 is provided with the photocatalytic filter 26 and the lamp 27, the passing air is sterilized by the photocatalytic filter 26 such as floating bacteria and fungi and deodorized odor components, and clean air is dried. It is supplied to the chamber 21. In addition, oil, food residue, and detergent residue adhering to the tableware and the like adhere to the photocatalyst layer 22 together with the blown water, and if left in this state, germs and molds are formed on the surface of the photocatalyst layer 22. In the present invention, the light of the lamp 27 is irradiated on the photocatalyst layer 22 to suppress the growth of fungi and fungi, and decompose organic substances such as oil, food residue, and residue of detergent to accumulate dirt. Therefore, the drying chamber 21 can be kept clean.

  A plurality of lamps 27 may be provided. By providing a plurality of lamps, a sufficient amount of light can be irradiated even if the area of the photocatalytic filter 26 increases. It is more effective to provide a reflecting plate at a position facing the photocatalytic filter 26 across the lamp 27 to reflect the light from the lamp 27. The lamp is not particularly limited as long as it can irradiate ultraviolet rays, and examples thereof include black light, germicidal lamp, cold cathode tube, fluorescent lamp, and ultraviolet LED, and black light is particularly preferable. When using a visible light responsive photocatalyst, there is no particular problem even if ultraviolet rays are not included. Regardless of the light source used, the UV intensity decreases by passing through the photocatalytic filter, so there is a risk of deterioration due to UV light even if the surface decoration such as a resin dish or a wall is dried. The effect that there is little can be obtained.

  You may equip a drying chamber with the holder for fixing what was inserted in the drying chamber. If the basket 28 is placed in the drying room and the dishes are placed on it, there is no fear that the wet dishes in the drying room will move even if high-speed dry air is struck. The effect | action that it can dry safely without sticking or cracking can be acquired. When at least a part of the holder is made of a light-transmitting material, the light from the light source is shadowed on the holder, and the photocatalyst layer in the shadow portion is less likely to fail. Examples of the light transmissive material include thin film-like transparent resins such as glass and polyethylene. In addition, by providing a photocatalyst layer on the surface of the holder, dirt adhering to the holder can be decomposed to suppress the propagation of germs.

  In the drying device of the present invention, it is possible to provide a drying device that can quickly dry things wet with water such as dishes, clothes and fingers with clean air that does not contain germs, and can keep the main body clean, Applications can be expected for hand dryers, dish dryers, dishwashers, clothes dryers, car washers, and so on. Further, it is possible to provide a drying device that can deodorize the interior space in which the drying chamber and the main body are installed by operation, and can be expected to be applied to air purifiers and deodorizers.

Schematic cross-sectional view of the drying apparatus shown in Embodiment 1 of the present invention The graph which shows the deodorizing effect of the photocatalyst filter of this invention The graph which shows the bactericidal effect of the photocatalyst of this invention Schematic sectional view of the drying apparatus shown in the second embodiment of the present invention Schematic cross-sectional view of a conventional hand dryer Schematic cross-sectional view of a conventional hand dryer

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Drying chamber 3 Photocatalyst layer 4 Outlet 5 Blower 6 Ventilation path 7 Photocatalyst filter 8 Lamp 9 Sensor 10 Water receiver 20 Main body 21 Drying chamber 22 Photocatalyst layer 23 Outlet 24 Fan 25 Ventilation path 26 Photocatalytic filter 27 Lamp 28 Cage 29 Lid 30 Water receiver 101 Air inlet 102 Control circuit 103 High pressure air flow generator 104 Hand dryer 105 Outlet 106 Inlet 107 Air passage 108 Air purifier 109 Air purifier 110 Air nozzle 111 Drying chamber 201 Waste water tank 202 Hand insert 203 Antibacterial Agent 204 Granular Antibacterial Agent

Claims (15)

A drying chamber for drying a wet one, a photocatalyst layer provided on a surface of a member constituting the drying chamber, a blowout port for blowing air into the drying chamber, and an air supply means for supplying air to the blowout port A ventilation path connecting the air supply means and the drying chamber, and a photocatalytic filter and a light source for exciting the photocatalyst are provided in the ventilation path, and the light irradiated from the light source passes through the photocatalytic filter and is then dried. A drying apparatus irradiating the photocatalyst layer of the chamber. The drying apparatus according to claim 1, wherein the light emitted from the light source is attenuated by passing through the photocatalytic filter. A drying chamber for drying a wet one, a photocatalyst layer provided on a surface of a member constituting the drying chamber, a blowout port for blowing air into the drying chamber, and an air supply means for supplying air to the blowout port A ventilation path connecting the air supply means and the drying chamber, and a photocatalytic filter and a light source for exciting the photocatalyst are provided in the ventilation path, and the photocatalytic filter in the drying chamber has an ultraviolet intensity of light irradiated to the photocatalytic filter. A drying apparatus characterized by being stronger than the intensity of ultraviolet rays applied to the layer. The drying apparatus according to any one of claims 1 to 3, wherein the photocatalyst layer surface constituting the drying chamber has an ultraviolet intensity of 0.001 mW / cm ² or more. The drying apparatus according to any one of claims 1 to 4, wherein the light source is arranged so that it cannot be directly viewed from outside the main body of the drying apparatus. 6. The drying apparatus according to claim 1, wherein the photocatalytic filter has a slit shape or a honeycomb shape. The drying apparatus according to claim 1, wherein the photocatalyst constituting the photocatalyst filter and the photocatalyst layer contains titanium oxide. The hand drying apparatus according to any one of claims 1 to 7, wherein the photocatalyst includes any one or more antibacterial metals selected from Ag, Cu, Zn, Ni, and Cr. The drying apparatus according to claim 1, wherein the photocatalyst filter includes an adsorbent and a photocatalyst. The drying apparatus according to claim 9, wherein a photocatalyst is dispersed on the surface of the adsorbent. The drying apparatus according to claim 9 or 10, wherein the adsorbent contains at least one selected from activated carbon, zeolite, sepiolite, manganese compound, and cobalt compound. The drying apparatus according to any one of claims 1 to 11, wherein the photocatalyst is fixed with a silicon compound. The drying device according to any one of claims 1 to 12, further comprising a holder for fixing a member inserted into the drying chamber. The drying apparatus according to claim 13, wherein at least a part of the holder is made of a light transmissive material. The drying apparatus according to claim 13 or 14, wherein a photocatalyst layer is provided on a surface of the holder.

Images