CN115507492A - Degerming deodorizing device - Google Patents

Degerming deodorizing device Download PDF

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Publication number
CN115507492A
CN115507492A CN202210410816.6A CN202210410816A CN115507492A CN 115507492 A CN115507492 A CN 115507492A CN 202210410816 A CN202210410816 A CN 202210410816A CN 115507492 A CN115507492 A CN 115507492A
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CN
China
Prior art keywords
air
ozone
water
passage
duct
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Pending
Application number
CN202210410816.6A
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Chinese (zh)
Inventor
吉武厚
中原繁治
今津龙也
小原浩志
宫崎敬介
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Maxell Ltd
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Maxell Ltd
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Publication date
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Publication of CN115507492A publication Critical patent/CN115507492A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/40—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F24F8/26—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media using ozone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • F24F2003/1446—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only by condensing
    • F24F2003/1452—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only by condensing heat extracted from the humid air for condensing is returned to the dried air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Air Humidification (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention provides a degerming and deodorizing device, which performs high degerming and deodorizing treatment based on hydroxyl radical on more air flowing in an air guide path in the degerming and deodorizing device utilizing ozone and hydroxyl radical. The bacteria removing and deodorizing device is provided with: a main body case (1) in which an air guide path (4) is formed, the air guide path (4) having an air suction port (2) at one end and an air blow-out port (3) at the other end; a blower fan (7) that is disposed in the air duct (4) and that transports air from the air inlet (2) to the air outlet (3); and an ozone generating unit (16) that generates ozone and supplies the ozone to the air guide passage (4). The air guide path (4) is provided with a high-humidity structure (17) for increasing the relative humidity of the air introduced from the air inlet (2), and the air passing through the high-humidity structure (17) is supplied with ozone generated by the ozone generating unit (16).

Description

Degerming deodorizing device
Technical Field
The present invention relates to a sterilization and deodorization device that performs sterilization and deodorization treatment using ozone and hydroxyl radicals.
Background
Such a sterilization and deodorization device is disclosed in, for example, patent document 1 (title of the invention: air cleaner and air quality control device). In the air cleaner of patent document 1, an air duct (air guide duct) formed in the main body is provided with a fan for blowing air, a dust collecting filter, a discharge element, a dust collecting portion, an ultraviolet lamp, and the like in this order from the upstream side to the downstream side in the flow direction of the air. When the air cleaner is driven, ozone is additionally generated in the discharge element in addition to negative ions, and the ozone performs a sterilization and deodorization process on air in the air flow. Further, a photodecomposition catalyst made of a semiconductor is supported on the ultraviolet lamp, and when the photodecomposition catalyst is irradiated with light having a band gap or more from the ultraviolet lamp, hydroxyl radicals are generated on the surface of the catalyst, and the air in the air passage is subjected to sterilization and deodorization treatment by the redox action of the hydroxyl radicals.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2000-140688
Disclosure of Invention
Problems to be solved by the invention
As in the air cleaner of patent document 1, when hydroxyl radicals having a stronger oxidation-reduction action than ozone are used in addition to ozone, it is possible to perform a higher degree of sterilization and deodorization treatment on the air in the air passage. However, hydroxyl radicals disappear in a short time after generation, and in the air cleaner of patent document 1, hydroxyl radicals are generated only on the surface of the photodecomposition catalyst, and the generation region of the hydroxyl radicals is localized in turn. Therefore, only a part of the air flowing along the surface of the photodecomposition catalyst in the air passage is subjected to the highly degerming and deodorizing treatment by the hydroxyl radicals, and most of the air is subjected to the degerming and deodorizing treatment by ozone only.
The purpose of the present invention is to provide a bacteria elimination and deodorization device that uses ozone and hydroxyl radicals, and that can perform a high degree of bacteria elimination and deodorization treatment based on hydroxyl radicals on a larger amount of air that flows through an air guide path.
Means for solving the problems
The bacteria removing and deodorizing device of the present invention is characterized by comprising: a main body casing 1 having an air guide passage 4 formed therein, the air guide passage 4 having an air suction port 2 at one end and an air blow-out port 3 at the other end; a blower fan 7 disposed in the air duct 4 and configured to send air from the air inlet 2 to the air outlet 3; and an ozone generator 16 that generates ozone and supplies the ozone to the air guide passage 4. The air guide passage 4 is provided with a high-humidification structure 17 for increasing the relative humidity of the air introduced from the air inlet 2, and the ozone generated by the ozone generation unit 16 is supplied to the air passing through the high-humidification structure 17.
The high-humidity structure 17 includes a cooling thermoelectric conversion element 68 having a heat absorbing portion 66, and is provided in a state where the heat absorbing portion 66 of the cooling thermoelectric conversion element 68 faces the air guide passage 4.
The high humidification structure 17 includes: a water receiving tank 70 that receives dew condensation water generated in the heat absorbing unit 66 of the cooling thermoelectric conversion element 68; and an evaporation mechanism 71 for evaporating or atomizing the dew water received by the water receiving tank 70.
The dehumidifying air passage 53 is provided, the dehumidifying air passage 53 sucks air from the outside of the main body case 1 and reduces the relative humidity of the sucked air, and the ozone generator 16 that generates ozone by a discharge phenomenon is provided at the downstream end of the dehumidifying air passage 53. The dehumidification air passage 53 is provided with: a dehumidification thermoelectric conversion element 56 that cools the air sucked into the dehumidification air passage 53 and condenses water vapor contained in the air; and a dehumidification tank 58 that receives dew condensation water generated by the dehumidification thermoelectric conversion element 56. The ozone generator 16 is provided in the air duct 4, and the high-humidity structure 17 is provided in the air duct 4 on the downstream side of the ozone generator 16. The high-humidification structure 17 includes a dehumidification tank 58 and an evaporation unit 63 that evaporates dew condensation water received by the dehumidification tank 58.
The high-humidification structure 17 includes a water tank 18 for storing water formed in the air guide passage 4, and a humidification mechanism 19 for evaporating or atomizing the water stored in the water tank 18 to humidify the air.
An ozone supply port 28 is provided for supplying the ozone generated in the ozone generator 16 to the air guide passage 4. A filter unit 36 capable of adsorbing ozone is provided downstream of the air guide passage 4 with respect to the ozone supply port 28.
An ozone supply port 28 is provided for supplying the ozone generated in the ozone generator 16 to the air guide passage 4. A mixing air duct 49 is formed in the air guide duct 4 on the downstream side of the ozone supply port 28, and the mixing air duct 49 is formed of a curved air duct that increases the chance of contact between the ozone and the steam contained in the air flowing through the air guide duct 4.
The ozone is blown out from the air outlet 3 together with the air humidified by the high humidifying structure 17.
The air guide passage 4 is provided with an ozone discharge port 32 that discharges ozone toward the air outlet port 3.
An ozone outlet 33 that blows out air containing ozone toward the outside of the main body casing 1 is provided adjacent to the air outlet 3.
The ozone outlet 33 is provided so that the direction of the ozone blown out from the ozone outlet 33 and the direction of the air blown out from the air outlet 3 intersect.
The air guide passage 4 is provided with an avoidance air passage 38, and the avoidance air passage 38 connects the upstream side and the downstream side of the filter 36 to the air guide passage 4 while avoiding the filter 36.
The ozone generating electrode 21, which generates ozone by decomposing water and electricity, is immersed in the water stored in the water tank 18.
The humidifying mechanism 19 is composed of an ultrasonic vibrator 20 that atomizes water in which ozone is dissolved and which is stored in the water tank 18.
ADVANTAGEOUS EFFECTS OF INVENTION
In the sterilization and deodorization device of the present invention, focusing on the generation of hydroxyl radicals by the reaction of water vapor (water molecules) and ozone, the air guide passage 4 is provided with a high-humidity structure 17 for increasing the relative humidity of the air introduced from the air inlet 2, and the ozone generated by the ozone generation unit 16 is supplied to the air passing through the high-humidity structure 17. When ozone is supplied to air having a high relative humidity in this manner, the water vapor and ozone can be sufficiently reacted with each other, and hydroxyl radicals can be efficiently generated in the air flowing through the air guide passage 4. Therefore, according to the present invention, since a large amount of hydroxyl radicals can be generated in the air guide passage 4 without locally forming a hydroxyl radical generation region as in the conventional air cleaner, it is possible to perform a high degree of sterilization and deodorization processing based on the hydroxyl radicals on a larger amount of air flowing through the air guide passage 4.
When the high-humidity structure 17 includes the cooling thermoelectric conversion element 68 having the heat absorbing portion 66, and the heat absorbing portion 66 of the cooling thermoelectric conversion element 68 is in a state of facing the air guide passage 4, the air passing through the heat absorbing portion 66 can be lowered in temperature by driving the cooling thermoelectric conversion element 68 to exchange heat between the air flowing through the air guide passage 4 and the heat absorbing portion 66. Accordingly, the relative humidity of the air passing through the heat absorbing portion 66 is increased by the temperature decrease, and therefore, the hydroxyl radicals can be efficiently generated by the reaction of the water vapor and ozone.
If the high-humidification structure 17 includes the water receiving tank 70 that receives dew condensation water generated in the heat absorbing portion 66 of the cooling thermoelectric conversion element 68 and the evaporation mechanism 71 that evaporates or atomizes dew condensation water received by the water receiving tank 70, even when moisture in the air is liquefied into dew condensation water in the heat absorbing portion 66 when the air flowing through the air guide passage 4 is cooled by the heat absorbing portion 66 of the cooling thermoelectric conversion element 68, the dew condensation water can be evaporated or atomized again by the evaporation mechanism 71 to promote evaporation, and therefore, the total amount of moisture contained in the air sucked from the air suction port 2 can be prevented from decreasing, and hydroxyl radicals can be efficiently generated.
If the dehumidification air duct 53 is provided to suck air from the outside of the main body casing 1 and lower the relative humidity of the sucked air, and the ozone generator 16 that generates ozone by the discharge phenomenon is provided at the downstream end of the dehumidification air duct 53, the lower the relative humidity of the air around the generator 16 is, the larger the amount of ozone generated per unit time becomes in the ozone generator 16 that utilizes the discharge phenomenon, and therefore, a large amount of ozone can be efficiently generated by the ozone generator 16.
Further, the following structure can be adopted: the dehumidification air passage 53 is provided with a dehumidification thermoelectric conversion element 56 for cooling the air sucked from the air inlet 2 and condensing the water vapor contained in the air, and a dehumidification tank 58 for receiving the dew condensation water generated in the dehumidification thermoelectric conversion element 56, the ozone generator 16 is provided in the air guide passage 4, and the high-humidification structure 17 is provided on the downstream side of the ozone generator 16. In this way, since the relative humidity of the air on the downstream side of ozone generating unit 16, which can efficiently generate ozone, can be increased, a large amount of water vapor can be reacted with ozone, and hydroxyl radicals can be generated more efficiently.
Further, the high-humidification structure 17 including the dehumidification tank 58 and the evaporation unit 63 for evaporating the dew condensation water received by the dehumidification tank 58 eliminates the need to supply water or the like from the outside, and thus can eliminate the time and effort for replenishing water.
If the high-humidification structure 17 is configured to include the water tank 18 for storing the water formed in the air guide passage 4 and the humidification mechanism 19 for evaporating or atomizing the water stored in the water tank 18 to humidify the air, the water stored in the water tank 18 is evaporated or atomized by the humidification mechanism 19 to promote the evaporation and humidify the air flowing through the air guide passage 4, thereby increasing the total amount of water vapor contained in the air, increasing the relative humidity, and more efficiently generating hydroxyl radicals.
If the ozone supply port 28 for supplying the ozone generated by the ozone generator 16 to the air guide passage 4 is provided and the filter unit 36 capable of adsorbing ozone is provided in the air guide passage 4 on the downstream side of the ozone supply port 28, the ozone can be adsorbed by the filter unit 36 and reacted with the water vapor contained in the air flowing through the air guide passage 4, and therefore, hydroxyl radicals can be generated in the filter unit 36, and the dust collected by the filter unit 36 can be subjected to the sterilization and deodorization treatment.
If the ozone supply port 28 for supplying the ozone generated by the ozone generator 16 to the air guide passage 4 is provided and the air guide passage 4 on the downstream side of the ozone supply port 28 is provided with the mixing air passage 49, the mixing air passage 49 increases the chance of contact between the steam contained in the air flowing through the air guide passage 4 and the ozone, and is formed by a curved air passage, the steam and the ozone can be actively reacted in the mixing air passage 49, and a large amount of hydroxyl radicals can be generated.
If the structure is such that ozone is blown out from the air outlet 3 together with the air humidified by the high humidifying structure 17, the sterilization and deodorization device can be used as a humidifier, a steam iron such as clothes, or the like, which can perform sterilization and deodorization treatment in the transport area of the air blown out from the air outlet 3. Further, humidified air and ozone can be mixed at the air outlet 3 to generate hydroxyl radicals, and highly degerming and deodorizing treatment can be performed at the air outlet 3.
If the air guide passage 4 is provided with the ozone outlet 32 that discharges ozone toward the air outlet 3, hydroxyl radicals can be generated again in the air outlet 3, and the sterilization and deodorization treatment can be performed. Further, since ozone that has not reacted with water vapor can be blown out from the air outlet 3, the ozone-based sterilization and deodorization treatment can be performed in the transport area of the air blown out from the air outlet 3.
If the ozone outlet 33 that blows out the air containing ozone toward the outside of the main body casing 1 is provided adjacent to the air outlet 3, ozone can be diffused along the edge of the air blown out from the air outlet 3, and therefore, the ozone-based sterilization and deodorization treatment can be performed in a wider area.
If the ozone outlet 33 is provided such that the direction of the ozone blown out from the ozone outlet 33 and the direction of the air blown out from the air outlet 3 intersect, the ozone can be diffused by the air flow blown out from the air outlet 3, and therefore the ozone-based sterilization/deodorization processing can be performed in a wider area.
If the air guide passage 4 is provided with the avoidance air path 38 that avoids the filter unit 36 and connects the air guide passage 4 on the upstream side and the downstream side of the filter unit 36, a part of the ozone can be transported to the air guide passage 4 on the downstream side of the filter unit 36 via the avoidance air path 38, and therefore the ozone can be blown out from the air outlet port 3 without providing a structure for generating ozone on the downstream side of the filter unit 36.
If the ozone generating electrode 21 for electrically decomposing water to generate ozone is immersed in the water stored in the water storage tank 18, the water stored in the water storage tank 18 can be dissolved with ozone, and therefore, the propagation of bacteria in the water storage tank 18 can be prevented, and the water in the water storage tank 18 can be maintained in a sanitary state. In addition, ozone can be added to the mist generated by the humidifying mechanism 19.
If the humidifying mechanism 19 is formed of the ultrasonic vibrator 20 that atomizes the water in which ozone is dissolved and which is stored in the water storage tank 18, the air containing the mist in which ozone is dissolved can be blown out from the air outlet 3, and therefore, the sterilization and deodorization treatment by the mist containing ozone can be performed in the peripheral area of the device.
Drawings
FIG. 1 is a vertical sectional side view showing a sterilization and deodorization device according to a first embodiment of the present invention.
FIG. 2 is a vertical sectional side view showing a sterilization and deodorization device according to a second embodiment of the present invention.
FIG. 3 is a vertical sectional side view showing a sterilization and deodorization device according to a third embodiment of the present invention.
FIG. 4 is a vertical sectional side view showing a sterilization and deodorization device according to a fourth embodiment of the present invention.
FIG. 5 is a vertical sectional side view showing a sterilization and deodorization device according to a fifth embodiment of the present invention.
FIG. 6 is a vertical sectional side view showing a sterilization and deodorization device according to a sixth embodiment of the present invention.
FIG. 7 is a vertical sectional side view showing a sterilization and deodorization device according to a seventh embodiment of the present invention.
FIG. 8 is a vertical sectional side view showing a main part of a sterilization and deodorization device according to an eighth embodiment of the present invention.
In the figure:
1-main body case, 2-air inlet, 3-air outlet, 4-air guide path, 7-blower fan, 16-ozone generator, 17-high humidity structure, 18-water storage tank, 19-humidification mechanism, 20-ultrasonic vibrator, 21-ozone generating electrode, 28-ozone supply port, 32-ozone outlet, 33-ozone outlet, 36-filter, 38-avoidance air path, 49-mixed air path, 53-dehumidification air path, 56-thermoelectric conversion element for dehumidification, 58-dehumidification tank, 63-evaporation portion, 66-heat absorption portion, 68-thermoelectric conversion element for cooling, 70-water receiving tank, 71-evaporation mechanism.
Detailed Description
(first embodiment)
Fig. 1 shows a first embodiment of the sterilization and deodorization device according to the present invention. In the present embodiment, the vertical direction is defined as vertical, the horizontal direction is defined as front-rear, and the depth direction is defined as horizontal, with respect to the drawing plane. In fig. 1, the sterilizing and deodorizing device includes a vertically long box-shaped main body casing 1 having a pentagonal side view, and an air guide passage 4 having an air inlet 2 at one end and an air outlet 3 at the other end is formed inside the main body casing 1. The air inlet 2 is open at a lower portion of the rear surface of the main body casing 1, and the air outlet 3 is open at a slope portion on the front side of the upper surface of the main body casing 1. The air guide passage 4 is formed in a substantially L-shape by a horizontal air passage 5 extending in the front-rear horizontal direction from the air inlet 2 and a vertical air passage 6 extending in the vertical direction toward the air outlet 3. A blower fan 7 for sending air from the air inlet 2 to the air outlet 3 is provided in the vicinity of the air inlet 2 of the horizontal air passage 5.
The vertical air passage 6 includes a rear main air passage 10 having a relatively large air passage diameter, a front sub air passage 11 having a relatively small air passage diameter, and a cavity 12 for collecting the two air passages 10 and 11. When the blower fan 7 is driven, air outside the main body casing 1 is sucked into the horizontal air passage 5 (air guide passage 4) from the air inlet 2, and the air sucked into the horizontal air passage 5 is blown out of the main body casing 1 from the air outlet 3 facing the cavity 12 via the main air passage 10 and the sub air passage 11. A pair of louvers 13 extending in the left-right direction are provided on the air outlet 3 side of the cavity 12, and the louvers 13 are provided so that the forward inclination angle gradually decreases from the front side to the rear side. The air blown out from the air outlet 3 is blown out in a fan shape extending upward and downward toward the front side from the pair of louvers 13.
An ozone generating unit 16 for generating ozone for sterilizing and deodorizing the air flowing through the air guide passage 4 is provided inside the main body casing 1. The sterilization and deodorization treatment of the air is performed by using hydroxyl radicals in addition to the ozone generated by the ozone generating unit 16, and in the sterilization and deodorization device of the present embodiment, hydroxyl radicals generated by the reaction of the ozone and the water vapor contained in the air are used. When water vapor and ozone are reacted to generate hydroxyl radicals, the water vapor and ozone can be efficiently reacted to generate hydroxyl radicals in a state where the relative humidity of the air is 40% to 100%. The relative humidity of the air capable of efficiently reacting the both is preferably 70% to 95%, more preferably 75% to 85%.
In order to increase the relative humidity of the air sucked from the air inlet 2 to a relative humidity at which water vapor and ozone can react efficiently, the air guide passage 4 is provided with a high-humidity structure 17. The high humidification structure 17 includes: a water storage tank 18 provided in the rear half of the horizontal air passage 5 and storing water; and a humidifying mechanism 19 provided on the bottom wall of the water storage tank 18 for evaporating or atomizing water in the water storage tank 18. The humidifying mechanism 19 is constituted by an ultrasonic transducer 20 immersed in the stored water, and when the ultrasonic transducer 20 is driven, the water is atomized on the water surface by ultrasonic vibration given to the water. The atomized water has a minute particle size, so that evaporation is promoted, and the mist released into the air evaporates to supply steam to the air, thereby increasing the relative humidity of the air flowing through the air guide passage 4.
An ozone generating electrode 21 formed of a pair of electrode rods is provided on the bottom wall of the water tank 18 so as to be adjacent to the ultrasonic transducer 20 in the front-rear direction. When a voltage higher than that at which water is electrolyzed is applied to the ozone generating electrode 21, ozone is generated in the electrode 21, and the generated ozone is dissolved in the water reservoir 18. Ozone not dissolved in the water is discharged into the air flowing through the air guide passage 4. The water is supplied to the water storage tank 18 through a water supply port not shown.
The ozone generating unit 16 includes: a first ozone generating unit 16A for supplying ozone to the air flowing through the main air passage 10; and a second ozone generating portion 16B for supplying ozone to the air in the vicinity of the air outlet 3, wherein each of the ozone generating portions 16A and 16B is composed of a needle-shaped discharge electrode 22 and a crown-shaped counter electrode 23 disposed so as to face the discharge electrode 22. First ozone generator 16A is provided in first ozone air passage 26 communicating main air passage 10 with the rear surface of main body case 1, and second ozone generator 16B is provided in second ozone air passage 27 communicating chamber section 12 with the upper surface of main body case 1 and the rear surface of main body case 1. The first ozone generating unit 16A is configured to generate a larger amount of ozone than the second ozone generating unit 16B.
In first ozone air passage 26, air is drawn into first ozone air passage 26 from the outside of main body case 1 by the venturi effect of air flowing through main air passage 10. The air taken into first ozone air passage 26 is supplied from ozone supply port 28, which opens toward main air passage 10 at the downstream end of first ozone air passage 26, to main air passage 10 through which the air having a relative humidity increased by high-humidification structure 17 flows, while containing ozone generated by first ozone generator 16A.
In the second ozone air passage 27, air is sucked from the outside of the main body case 1 into the second ozone air passage 27 by the blower fan 29 provided on the upstream side of the passage 27. The second ozone air passage 27 on the downstream side of the second ozone generator 16B branches into two strands, i.e., an inner air passage 30 communicating with the cavity 12 and an outer air passage 31 communicating with the upper surface of the main body casing 1. In a state where the air taken into the second ozone air passage 27 by the blower fan 29 contains ozone generated by the second ozone generator 16B, a part of the air is discharged from the ozone discharge port 32, which is open to the cavity 12 and is the downstream end of the inner air passage 30, toward the air outlet port 3, and the remaining part of the air is blown out of the main body casing 1 from the ozone outlet port 33, which is open to the upper side of the main body casing 1 adjacent to the rear side of the air outlet port 3 and is the downstream end of the outer air passage 31. The ozone outlet 33 is provided so that the direction of ozone blown out from the outlet 33 and the direction of air blown out in a fan shape from the air outlet 3 intersect. The ozone discharge opening 32 and the ozone discharge opening 33 need only deliver ozone to the air flow in the air guide passage 4 and the air flow blown out from the air discharge opening 3, and therefore the blowing capacity of the blower fan 29 provided in the second ozone air passage 27 is smaller than the blowing capacity of the blower fan 7 provided in the air guide passage 4. In addition, either one of the ozone outlet 32 and the ozone outlet 33 can be omitted.
A filter unit 36 for collecting dust in the air and adsorbing ozone is provided in the main air passage 10 between the ozone supply port 28 and the chamber section 12. The filter 36 is made of a block-shaped porous body obtained by sintering granular activated carbon into a shape matching the cross-sectional shape of the air passage of the main air passage 10, and has a through hole 37 penetrating vertically at the center thereof. In order to prevent all of the ozone supplied from ozone supply port 28 from being adsorbed by filter unit 36, an avoidance air path 38 is provided that avoids filter unit 36 and connects main air path 10 (air guide path 4) on the upstream side and the downstream side of filter unit 36. The bypass air passage 38 of this embodiment is formed by the through hole 37 provided in the filter unit 36.
In fig. 1, reference numeral 41 denotes a drive unit for driving the blower fans 7 and 29, the ozone generating unit 16 (16A and 16B), the ultrasonic vibrator 20, the ozone generating electrode 21, and the like, reference numeral 42 denotes a control unit for controlling the operation of the drive unit 41, and reference numeral 43 denotes a power switch for turning on/off the sterilization and deodorization device. The power switch 43 is constituted by a tactile switch, and the sterilization and deodorization device is switched on/off every time a push-in operation is performed. The sterilization and deodorization device is driven by the electric power of the commercial power supply supplied through the power supply line 44. Further, a secondary battery may be mounted inside the main body case 1, and the sterilization/deodorization device may be driven by electric power of the secondary battery.
When the sterilizing and deodorizing apparatus is in the off state, the control unit 42 drives the blower fans 7 and 29, the ozone generating units 16 (16A and 16B), the ultrasonic vibrator 20, and the ozone generating electrode 21 to start the sterilizing and deodorizing apparatus when the power switch 43 is pressed and a signal is output to the control unit 42. The air sucked into the horizontal air duct 5 from the air inlet port 2 by the blower fan 7 is evaporated by the mist generated by the high-humidification structure 17, and the water vapor is supplied to increase the relative humidity thereof, and the ozone is supplied from the ozone supply port 28 to the main air duct 10. At this time, the water vapor reacts with ozone to generate hydroxyl radicals, and bacteria, viruses, and odors contained in the air flowing through the main air passage 10 (air guide passage 4) are subjected to sterilization and deodorization treatment by the hydroxyl radicals and the unreacted residual ozone.
In the filter unit 36, dust and residual ozone are trapped and adsorbed, and a part of the adsorbed ozone reacts with water vapor in the filter unit 36 to generate hydroxyl radicals, thereby performing sterilization and deodorization treatment on bacteria, viruses, and odors adhering to dust. In filter unit 36, a part of the air is sent to the air outlet port 3 side through bypass air duct 38 formed of through holes 37, and ozone is not removed. The mist containing the ozone generated by the high-humidification structure 17 flows through the air flowing through the sub-air passage 11, and bacteria, viruses, and odor contained in the air flowing through the sub-air passage 11 (the air guide passage 4) are subjected to the sterilization and deodorization treatment by the ozone and are conveyed toward the air outlet 3.
The air that has been transported through the main duct 10 and the sub-duct 11 and reached the chamber 12 is further mixed with ozone discharged from the ozone discharge port 32 in the chamber 12, subjected to sterilization and deodorization, and blown out in a fan shape that spreads vertically upward toward the front side of the main body casing 1 together with mist that remains without being evaporated from the air outlet port 3. Ozone is also blown out from the ozone outlet 33 provided adjacent to the air outlet 3, a part of the ozone is mixed into the air blown out from the air outlet 3, and the remaining part is diffused to the surroundings by the potential energy of the air blown out from the air outlet 3. Thereby, the air blowing direction of the air blowing port 3 and the sterilization and deodorization processing of the air around the sterilization and deodorization device are performed.
When the power switch 43 is pressed and a signal is output to the control unit 42 when the sterilizing and deodorizing device is in the on state, the control unit 42 stops the driving of the blower fans 7, 29, the ozone generating units 16 (16A, 16B), the ultrasonic vibrator 20, and the ozone generating electrode 21. After the sterilizing and deodorizing device is stopped, ozone is still dissolved in the water reservoir 18, and therefore, the stored water can be prevented from being spoiled by the ozone.
As described above, according to the sterilization and deodorization device of the present embodiment, focusing on the generation of hydroxyl radicals by the reaction of water vapor (water molecules) and ozone, the air guide passage 4 is provided with the high-humidity structure 17 for increasing the relative humidity of the air introduced from the air inlet port 2, and the ozone generated by the ozone generation unit 16 is supplied to the air passing through the high-humidity structure 17. As described above, by supplying ozone to air with a high relative humidity, it is possible to sufficiently react water vapor with ozone and efficiently generate hydroxyl radicals in the air flowing through the air guide passage 4, and therefore, a large amount of hydroxyl radicals \12434canbe generated in the air guide passage 4 without locally generating a hydroxyl radical generation region as in the conventional air cleaner. Accordingly, a high degree of sterilization and deodorization treatment by hydroxyl radicals can be performed on a larger amount of air flowing through the air guide passage 4.
The high humidification structure 17 is configured to include a water reservoir 18 formed in the air guide passage 4 and storing water, and an ultrasonic vibrator 20 (humidification mechanism 19) atomizing the water stored in the water reservoir 18 and humidifying the air, and therefore, evaporation of the atomized water is promoted, the total amount of water vapor contained in the air flowing through the air guide passage 4 is increased, the relative humidity is increased, and hydroxyl radicals are generated more efficiently.
Since the ozone supply port 28 for supplying the ozone generated by the ozone generator 16 to the air guide passage 4 is provided and the filter unit 36 capable of adsorbing ozone is provided in the air guide passage 4 on the downstream side of the ozone supply port 28, the ozone can be adsorbed by the filter unit 36 and reacted with the water vapor contained in the air flowing through the air guide passage 4. This enables hydroxyl radicals to be generated in the filter unit 36, and the dust collected by the filter unit 36 can be subjected to the sterilization and deodorization treatment.
Since the configuration is such that ozone is blown out from the air outlet 3 together with the air humidified by the humidifying structure 17, the bacteria elimination and deodorization device can be used as a humidifier capable of performing bacteria elimination and deodorization processing in a transport area of the air blown out from the air outlet 3. Further, the humidified air is mixed with ozone at the air outlet 3 to generate hydroxyl radicals, and high-level sterilization and deodorization treatment can be performed at the air outlet 3.
Since the air guide passage 4 is provided with the ozone outlet 32 that discharges ozone toward the air outlet 3, hydroxyl radicals can be regenerated in the air outlet 3, and the sterilization and deodorization treatment can be performed. Further, since the ozone that has not reacted with the water vapor can be blown out from the air outlet 3, the sterilization and deodorization processing can be performed in the transport area of the air blown out from the air outlet 3.
Since the ozone outlet 33 that blows out the air containing ozone toward the outside of the main body casing 1 is provided adjacent to the air outlet 3, ozone can be diffused along the edge of the air blown out from the air outlet 3, and the sterilization and deodorization processing can be performed in a wider area.
Since the ozone outlet 33 is provided so that the direction of the ozone blown out from the ozone outlet 33 and the direction of the air blown out from the air outlet 3 intersect each other, the ozone can be diffused by the air flow blown out from the air outlet 3, and the sterilization and deodorization processing can be performed in a wider area.
Since air guide path 4 is provided with avoidance air path 38 that avoids filter 36 and connects air guide path 4 on the upstream side and the downstream side of filter 36, ozone can be blown out from air outlet 3 without providing a structure for generating ozone on the downstream side of filter 36 by conveying a part of ozone to air guide path 4 on the downstream side of filter 36 via avoidance air path 38.
Since the ozone generating electrode 21 for decomposing water and electricity to generate ozone is provided so as to be immersed in the water stored in the water storage tank 18, the ozone is dissolved in the water stored in the water storage tank 18, and the propagation of bacteria and the like in the water storage tank 18 can be prevented. This makes it possible to maintain the water in the reservoir tank 18 in a sanitary state, and to form the humidifying mechanism 19 by the ultrasonic vibrator 20, so that ozone can be added to the generated mist, and the ozone-containing mist can be subjected to sterilization and deodorization treatment in the peripheral region of the device.
In addition, according to the above-described sterilization and deodorization device, since the air can be highly sterilized and deodorized by hydroxyl radicals, it can contribute to target 3 (health and welfare of all the mankind) of Sustainable Development targets (SDGs) advocated by the United nations.
In addition to the above, the humidifying mechanism 19 may be a heater that evaporates water in the water tank 18 instead of the ultrasonic transducer 20. A humidity sensor can be provided in the air guide passage 4 on the downstream side of the high-humidification structure 17, and the drive output of the high-humidification structure 17 can be adjusted based on the detection result of the humidity sensor. This makes it possible to control the relative humidity of the air to which ozone is supplied to a target relative humidity, and to more efficiently react water vapor with ozone, thereby stably generating a large amount of hydroxyl radicals.
(second embodiment)
Fig. 2 shows a second embodiment of the sterilization and deodorization device according to the present invention, and the internal structure of the main body casing 1 is different from that of the first embodiment. The same components, structures, and members as those of the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted. The sterilization and deodorization device is also defined in the vertical, horizontal, and longitudinal directions. These are also the same in the following embodiments.
In fig. 2, the vertical air passage 6 includes a main air passage 10 connected to the horizontal air passage 5 and a cavity 12 provided at a downstream end of the main air passage 10. The blower fan 7 is provided on the downstream end side of the horizontal air passage 5, and when the blower fan 7 is driven, air outside the main body casing 1 is sucked into the horizontal air passage 5 (air guide passage 4) from the air suction port 2, and the air sucked into the horizontal air passage 5 is blown out to the outside of the main body casing 1 from the air outlet port 3 facing the cavity 12 via the main air passage 10. The high-humidity structure 17 includes: a water storage tank 18 provided at a connecting portion between the horizontal air passage 5 and the vertical air passage 6 and storing water; and an ultrasonic vibrator 20 (humidifying mechanism 19) provided on the bottom wall of the water tank 18 and atomizing water in the water tank 18.
The ozone generator 16 includes a first ozone generator 16A for supplying ozone to the air flowing in the horizontal air duct 5 and a second ozone generator 16B for supplying ozone to the air flowing in the vertical air duct 6. The first ozone generator 16A is provided in a first ozone air passage 26 communicating the vicinity of the upstream end of the horizontal air passage 5 and the rear surface of the main body casing 1, and the second ozone generator 16B is provided in a second ozone air passage 27 communicating the main air passage 10 and the rear surface of the main body casing 1. The first ozone generating unit 16A is configured to generate a larger amount of ozone than the second ozone generating unit 16B.
In first ozone air passage 26, air is sucked from the outside of main body case 1 into first ozone air passage 26 by blower fan 7. The air sucked into first ozone air passage 26 is supplied to horizontal air passage 5 from ozone supply port 28, which is open toward horizontal air passage 5 and is the downstream end of first ozone air passage 26, in a state where the air contains ozone generated by first ozone generator 16A.
The second ozone air passage 27 is constituted by one air passage, and air is sucked into the second ozone air passage 27 from the outside of the main body case 1 by the venturi effect of the air flowing through the main air passage 10 in the second ozone air passage 27. The air sucked into the second ozone air duct 27 is discharged from the ozone discharge port 32, which is opened toward the main air duct 10 and is the downstream end of the second ozone air duct 27, toward the main air duct 10 in a state where the air contains ozone generated by the second ozone generator 16B.
A filter 36 is provided in the horizontal air passage 5 upstream of the blower fan 7. The through-hole 37 of the filter 36 is omitted, and an air-bypass passage 38 is provided to communicate the horizontal air passage 5 (air guide passage 4) on the upstream side and the downstream side of the filter 36 with each other while avoiding the filter 36.
In order to increase the relative humidity of the air flowing through the horizontal air passage 5 on the upstream side of the high humidity structure 17, a humidity supply air passage 47 is provided to communicate the horizontal air passage 5 between the ozone supply port 28 and the filter unit 36 with the main air passage 10. By driving the blower fan 7, the horizontal air passage 5 side becomes negative pressure and the main air passage 10 side becomes positive pressure, and thus a part of the air whose relative humidity has been increased by the high-humidification structure 17 is sent to the horizontal air passage 5 on the downstream side of the ozone supply port 28 via the humidity supply air passage 47.
When the power switch 43 is pressed to activate the sterilizing and deodorizing device, the relative humidity of the air drawn into the horizontal air passage 5 from the air inlet 2 by the blower fan 7 is increased by the humidifying structure 17, and a part of the air is sent to the horizontal air passage 5 through the humidity supply passage 47, and the ozone is supplied to the horizontal air passage 5 from the ozone supply port 28. At this time, the water vapor reacts with the ozone to generate hydroxyl radicals, and bacteria, viruses, and odors contained in the air flowing through the horizontal air passage 5 (air guide passage 4) are subjected to the sterilization and deodorization treatment by the hydroxyl radicals and the unreacted ozone remaining.
In the filter unit 36, dust and residual ozone are trapped and adsorbed, and a part of the adsorbed ozone reacts with water vapor in the filter unit 36 to generate hydroxyl radicals, thereby performing sterilization and deodorization treatment on bacteria, viruses, and odor attached to the dust. In addition, a part of the air flowing through horizontal air duct 5 passes through bypass air duct 38, and is sent to vertical air duct 6 without being removed of ozone. The vertical air duct 6 is further mixed with ozone discharged from the ozone discharge port 32. At this time, since the air whose humidity has been increased by the high humidifying structure 17 is sent to the vertical air passage 6, hydroxyl radicals are generated when ozone is mixed, and a high degree of sterilization and deodorization treatment is performed around the air outlet 3. The air after the sterilization and deodorization is blown out from the air outlet 3 in a fan shape extending vertically upward toward the front side of the main body casing 1 together with the remaining ozone and mist.
(third embodiment)
Fig. 3 shows a third embodiment of the sterilization and deodorization device according to the present invention, and the internal structure of the main body casing 1 is different from that of the first embodiment. In fig. 3, the vertical air passage 6 includes: a main duct 10 provided on the upstream side of the vertical duct 6; a cavity 12 provided on the downstream end side of the vertical air passage 6; and a mixture air passage 49 formed by a curved air passage provided between the main air passage 10 and the cavity 12. The mixture air duct 49 is composed of: extends rearward in the horizontal direction and extends forward in the horizontal direction by 180 degrees. The high humidification structure 17 includes: a water storage tank 18 provided at a connecting portion between the horizontal air path 5 and the vertical air path 6 and storing water; and an ultrasonic vibrator 20 (humidifying mechanism 19) provided on the bottom wall of the water tank 18 and atomizing water in the water tank 18.
The ozone generator 16 supplies ozone to the air flowing through the main air passage 10. The ozone generator 16 is provided in the ozone air passage 50 that communicates the main air passage 10 and the rear surface of the main body case 1. The ozone air passage 50 draws air from the outside of the main body case 1 into the ozone air passage 50 by the venturi effect of the air flowing through the main air passage 10. The air sucked into the ozone air duct 50 is discharged toward the main air duct 10 from the ozone supply port 28 which opens toward the main air duct 10 and is the downstream end of the ozone air duct 50, in a state where the air contains ozone generated by the ozone generator 16.
When the power switch 43 is pressed to activate the deodorizing and bacteria-removing device, the air whose relative humidity has been increased by the high-humidification structure 17 reaches the air-mix duct 49 together with the ozone supplied from the ozone supply port 28 to the main duct 10. In the present embodiment, since the air passage length of the vertical air passage 6 is set longer than that in the first embodiment described above by the mixed air passage 49 provided in the vertical air passage 6 and having the reverse curved air passage, the chance of contact between the water vapor contained in the air and the ozone increases, and the hydroxyl radicals can be generated more efficiently. The air subjected to the sterilization and deodorization treatment in the vertical air duct 6 is blown out from the air outlet 3 in a fan shape extending upward and downward toward the front side of the main body casing 1 together with the residual ozone and mist.
In the sterilization and deodorization device according to the above-described embodiment, since the mixing air passage 49 that increases the chance of contact between the water vapor contained in the air flowing through the air guide passage 4 and the ozone is formed in the air guide passage 4 on the downstream side of the ozone supply port 28, the water vapor and the ozone can be actively reacted in the mixing air passage 49 to generate a large amount of hydroxyl radicals.
The mixture air passage 49 is formed by an air passage bent 180 degrees in reverse, but may be formed by a serpentine air passage or a spiral air passage, and the above-described bent air passage means including a bent air passage.
(fourth embodiment)
Fig. 4 shows a fourth embodiment of the sterilization and deodorization device according to the present invention, and the structure of the high-humidification structure 17 is different from the first to third embodiments. In fig. 4, the main body casing 1 of the sterilizing and deodorizing device is formed in a rectangular box shape. An air guide passage 4 having an air inlet 2 at one end and an air outlet 3 at the other end is formed inside the main body casing 1. The air inlet 2 is open at the lower portion of the rear surface of the main body casing 1, and the air outlet 3 is open at the front side of the upper surface of the main body casing 1. The air guide passage 4 is formed in a substantially L-shape by a horizontal air passage 5 extending in the front-rear horizontal direction from the air inlet 2 and a vertical air passage 6 extending in the vertical direction toward the air outlet 3. A blower fan 7 for sending air from air inlet 2 to air outlet 3 is provided in horizontal air passage 5 in the vicinity of air inlet 2. Three louvers 13, each formed of a vertical wall extending in the left-right direction, are provided in the vertical air passage 6 facing the air outlet 3, and the air blown out from the air outlet 3 is blown out upward of the main body casing 1.
The sterilization and deodorization device has a dehumidification air passage 53 other than the air guide passage 4, and the dehumidification air passage 53 sucks air from the outside of the main body casing 1 and reduces the relative humidity of the sucked air. An air path downstream end of the dehumidification air path 53 opens upward in the vertical air path 6, an air path upstream end opens to the rear surface of the main body case 1, and an ozone generator 16 is provided at a downstream end of the air path 53. In the dehumidification air passage 53, air is sucked from the outside of the main body casing 1 into the dehumidification air passage 53 by the venturi effect of the air flowing through the vertical air passage 6, and the downstream end of the dehumidification air passage 53 is opened as the ozone supply port 28.
The air sucked into the dehumidification air passage 53 is dehumidified by a dehumidification thermoelectric conversion element 56 including a heat absorbing portion 54 and a heat radiating portion 55. A heat absorbing portion 54 of the thermoelectric conversion element for dehumidification 56 is disposed in the middle of the dehumidification air passage 53, and the heat absorbing portion 54 cools the air flowing through the dehumidification air passage 53 to condense water vapor in the air, thereby dehumidifying the air and lowering the relative humidity of the air. A plurality of cooling fins 57 for increasing the contact area with the air are integrally formed in the heat absorbing portion 54. A dehumidification air passage 53 in which the heat absorbing part 54 is disposed is provided with a dehumidification tank 58 that receives dew condensation water generated in the heat absorbing part 54, and the dew condensation water drops from the heat absorbing part 54 and is stored in the dehumidification tank 58.
The heat dissipation portion 55 of the thermoelectric conversion element 56 for dehumidification is provided in the heat dissipation air passage 59. The heat dissipation air passage 59 is a horizontal U-shaped air passage having an upstream end and a downstream end both opened in the rear surface of the main body casing 1, and the heat dissipation fins 60 integrally formed in the heat dissipation portion 55 are provided in the air passage 59. A cooling fan 61 that sends air toward the heat dissipating fins 60 is provided near the upstream end of the heat dissipating air passage 59.
An extraction pipe 62 for extracting the water stored in the dehumidification tank 58 by utilizing capillary action is provided, and one end of the extraction pipe 62 is immersed in the water in the dehumidification tank 58 and the other end is disposed in the vertical air passage 6 on the downstream side of the ozone generator 16. An evaporator 63, which is formed of a cylindrical porous body and evaporates the water drawn by the draw-off pipe 62, is provided at the downstream end of the draw-off pipe 62 disposed in the vertical air passage 6. The high-humidification structure 17 of the present embodiment includes the thermoelectric conversion element 56 for dehumidification, the dehumidification tank 58, the extraction pipe 62, and the evaporation unit 63, and increases the relative humidity of the air flowing through the vertical air passage 6 by evaporating the water in the dehumidification tank 58 by the evaporation unit 63.
When the power switch 43 is pressed to activate the sterilizing and deodorizing device, air is sucked from the air inlet 2 to the air duct 4 by the blower fan 7, and air is also sucked into the dehumidification air duct 53 by the sucked air flow. The air sucked into dehumidification air duct 53 is cooled by heat absorption unit 54, and a part of the water vapor is condensed on the surface of heat absorption unit 54, and the condensed water is stored in dehumidification tank 58. As a result, when the air flowing downstream of the heat absorber 54 is sucked into the dehumidification air passage 53, the relative humidity thereof is further reduced, and the air having the reduced relative humidity is sent to the ozone generator 16. The ozone generating unit 16 generates ozone by an electric discharge phenomenon, and therefore, in air with low relative humidity, the amount of ozone generated per unit time increases, and ozone is generated efficiently.
The dew condensation water stored in the dehumidification tank 58 is extracted by the capillary phenomenon of the extraction pipe 62 and is sent to the evaporation unit 63. In the evaporator 63, the dew condensation water extracted by the air flowing through the vertical air passage 6 evaporates, and the relative humidity of the air on the downstream side of the evaporator 63 increases. Ozone is supplied to the air with the increased relative humidity from the ozone supply port 28, and water vapor reacts with the ozone to generate hydroxyl radicals. The generated hydroxyl radicals and the residual unreacted ozone are subjected to sterilization and deodorization treatment in vertical air passage 6. The air after the sterilization and deodorization treatment is blown out upward from the air blowing port 3 together with the remaining ozone.
The sterilization and deodorization device of the above embodiment includes the dehumidification air duct 53 for sucking air from the outside of the main body casing 1 and reducing the relative humidity of the sucked air, and the ozone generator 16 for generating ozone by the discharge phenomenon is provided at the downstream end of the dehumidification air duct 53. In this way, in the ozone generating unit 16 using the electric discharge phenomenon, the lower the relative humidity of the ambient air of the generating unit 16, the more the amount of ozone generated per unit time increases, so a large amount of ozone can be efficiently generated in the ozone generating unit 16.
A dehumidifying thermoelectric conversion element 56 for cooling the air sucked from the air inlet 2 and condensing the water vapor contained in the air and a dehumidifying tank 58 for receiving the dew condensation water generated in the dehumidifying thermoelectric conversion element 56 are provided in the dehumidifying air passage 53, the ozone generator 16 is provided in the air guide passage 4, and the high-humidification structure 17 is provided on the downstream side of the ozone generator 16. In this way, the relative humidity of the air on the downstream side of the ozone generating section 16, which can efficiently generate ozone, is increased, and hydroxyl radicals can be generated more efficiently by a large amount of water vapor and ozone. Further, according to the high-humidification structure 17 including the dehumidification tank 58, the extraction pipe 62, the evaporation unit 63, and the like, it is not necessary to supply water or the like from the outside, and therefore, the time and effort for replenishing water can be omitted. Further, if the sterilization/deodorization device is driven in a state where water is not stored in the dehumidification tank 58, the relative humidity of the air on the downstream side of the ozone generation unit 16 may not be increased at the initial stage of driving. In such a situation, water may be supplied to the moisture removal tank 58 in advance so that the high-level sterilization and deodorization processing can be performed from the initial stage of driving. Since the dew condensation water is supplied to the dehumidifying tank 58 when the sterilizing and deodorizing apparatus is continuously driven, it is not necessary to supply water from the outside later.
(fifth embodiment)
Fig. 5 shows a fifth embodiment of the sterilization and deodorization device according to the present invention, and the structure of the high-humidification structure 17 is different from the first to third embodiments. In fig. 5, the main body casing 1 of the sterilizing and deodorizing device is formed in a rectangular box shape that is long, and an air guide passage 4 having an air inlet 2 at one end and an air outlet 3 at the other end is formed inside the main body casing 1. The air inlet 2 is open at the lower portion of the rear surface of the main body casing 1, and the air outlet 3 is open at the front side of the upper surface of the main body casing 1. Air guide passage 4 is formed in a substantially L-shape by a horizontal air passage 5 extending in the front-rear horizontal direction from air inlet 2 and a vertical air passage 6 extending in the vertical direction toward air outlet 3. A blower fan 7 for sending air from the air inlet 2 to the air outlet 3 is provided in the horizontal air passage 5 near the air inlet 2. Three louvers 13, each formed of a vertical wall extending in the left-right direction, are provided in the vertical air duct 6 facing the air outlet 3, and the air blown out from the air outlet 3 is blown out upward of the main body casing 1.
The high-humidity structure 17 includes a cooling thermoelectric conversion element 68 having a heat absorbing portion 66 and a heat radiating portion 67, and the heat absorbing portion 66 of the cooling thermoelectric conversion element 68 is disposed in the vertical air passage 6. When the cooling thermoelectric conversion element 68 is driven, heat is exchanged between the air flowing through the air guide passage 4 and the heat absorbing unit 66, the temperature of the air is lowered, and the relative humidity thereof can be increased. A plurality of cooling fins 69 for increasing the contact area with the air are integrally formed in the heat absorbing portion 66. The horizontal air passage 5 is branched upward at a midway portion thereof, and the branched air passage is configured as a heat dissipation air passage 59. Heat dissipation fins 72 integrally formed with the heat dissipation portion 67 are arranged in the heat dissipation air passage 59.
The high-humidity structure 17 is provided below the heat absorbing unit 66, and includes a water receiving tank 70 that receives dew condensation water dropping from the cooling fins 69 when the air is excessively cooled and dew condensation occurs. An ultrasonic vibrator constituting an evaporation mechanism 71 for atomizing the dew condensation water received by the water receiving tank 70 is provided on the bottom wall of the water receiving tank 70.
The ozone generator 16 supplies ozone to the air flowing through the vertical air duct 6. The ozone generator 16 is provided in a vertical air passage 6 that communicates between the heat absorber 66 and the air outlet 3 at a substantially intermediate position and an ozone air passage 73 in the rear surface of the main body casing 1. In the ozone air passage 73, air is sucked from the outside of the main body casing 1 into the ozone air passage 73 by the venturi effect of the air flowing through the vertical air passage 6. The air sucked into the ozone air duct 73 is supplied to the vertical air duct 6 from the ozone supply port 28 which is open to the vertical air duct 6 and is the downstream end of the ozone air duct 73, in a state where the air contains ozone generated by the ozone generator 16.
When the power switch 43 is pressed to activate the deodorizing device, air is sucked from the air inlet 2 to the air guide passage 4 by the blower fan 7. The air flowing through vertical air duct 6 is cooled by heat absorbing unit 66, and a part of the water vapor condenses on the surface of heat absorbing unit 66, and the condensed water is stored in water receiving tank 70. The dew condensation water stored in the water receiving tank 70 is atomized by the evaporation mechanism 71 and supplied to the vertical air duct 6.
The dew condensation water stored in the water receiving tank 70 is atomized by the evaporation mechanism 71 and supplied to the vertical air duct 6. The air cooled by the heat absorbing unit 66 has a lower relative humidity than when the air is taken into the air guide passage 4. This increases the relative humidity of the air passing through the heat absorbing unit 66, and also contains mist, and ozone is supplied to the air from the ozone supply port 28, and the water vapor reacts with the ozone to generate hydroxyl radicals. The generated hydroxyl radicals and the residual unreacted ozone are subjected to sterilization and deodorization treatment in the vertical air passage 6. The air subjected to the sterilization and deodorization process is blown upward from the air outlet 3.
In the sterilization and deodorization device according to the above-described embodiment, since the heat absorbing portion 66 of the cooling thermoelectric conversion element 68 provided in the high-humidification structure 17 is in a state of facing the air guide passage 4, the temperature of the air passing through the heat absorbing portion 66 is lowered, the relative humidity of the air can be increased, and hydroxyl radicals can be efficiently generated.
The high-humidification structure 17 includes a water receiving tank 70 that receives dew condensation water generated in the heat absorbing portion 66 of the cooling thermoelectric conversion element 68, and an evaporation mechanism 71 that evaporates or atomizes dew condensation water received by the water receiving tank 70, and can atomize dew condensation water again by the evaporation mechanism 71 even when moisture in air is liquefied into dew condensation water by the heat absorbing portion 66, so that the total amount of moisture contained in air sucked from the air inlet 2 is not reduced, and hydroxyl radicals can be efficiently generated.
The evaporation mechanism 71 is constituted by an ultrasonic transducer, but the evaporation mechanism 71 may be a heater for heating and evaporating the water in the water receiving tank 70.
(sixth embodiment)
Fig. 6 shows a sixth embodiment of the sterilization and deodorization device of the present invention, which is different from the fifth embodiment in that the water receiving tank 70 is omitted and the arrangement of the ozone air passage 73 is changed. In fig. 6, the ozone air passage 73 is a v 12467. The air sucked into the ozone air duct 73 is supplied to the vertical air duct 6 from the ozone supply port 28, which is opened toward the vertical air duct 6 on the upstream side of the heat absorbing unit 66 and is the downstream end of the ozone air duct 73, in a state where the air contains ozone generated by the ozone generating unit 16.
The cross-sectional area of the vertical air passage 6 in which the heat absorbing portion 66 and the ozone supply port 28 are arranged is set smaller than the cross-sectional area of the vertical air passage 6 on the upstream side and the downstream side thereof. This increases the flow velocity of the vertical air duct 6 in the heat absorbing portion 66 and the ozone supply port 28, thereby enhancing the venturi effect in the ozone supply port 28. In addition, the heat absorbing portion 66 suppresses excessive cooling of the air, and prevents condensation from occurring on the cooling fins 69.
When the power switch 43 is pressed to activate the deodorizing device, air is sucked from the air inlet 2 to the air guide passage 4 by the blower fan 7. The air flowing through the vertical air passage 6 is supplied with ozone from the ozone supply port 28, and the air containing ozone is cooled by the heat absorbing portion 66. The air cooled by the heat absorbing portion 66 has a lower relative humidity than when it is sucked into the air guide passage 4, and the water vapor reacts with ozone to efficiently generate hydroxyl radicals. The generated hydroxyl radicals and the residual unreacted ozone are subjected to sterilization and deodorization treatment in vertical air passage 6. The air after the sterilization and deodorization treatment is blown out upward from the air outlet 3 together with the residual ozone.
(seventh embodiment)
Fig. 7 shows a seventh embodiment in which the sterilization and deodorization device of the present invention is applied to a steam iron. As shown in fig. 7, main body case 1 of the steam iron is of a pistol type having head portion 76 and grip portion 77, and air guide passage 4 extending in the front-rear direction is formed inside head portion 76. An ironing plate 78 made of a metal plate is attached to the front end of the head portion 76, and the ironing plate 78 is disposed so as to face the cavity 12 formed at the downstream end (front end) of the air guide passage 4. The air inlet 2 is open at the rear surface of the head 76 (main body casing 1), and has a plurality of air outlets 3 that penetrate the plate surface of the ironing board 78 in the front-rear direction. Near the air inlet 2, a blower fan 7 and an ozone generator 16 are provided in the order described from the upstream side to the downstream side of the air guide passage 4.
The handle portion 77 is provided with a high-humidity structure 17, and the high-humidity structure 17 includes a water storage tank 18, a humidification mechanism 19 including a heater 79 for heating and evaporating water stored in the water storage tank 18, a vapor flow path 80 for conveying vapor generated in the water storage tank 18 to the air guide path 4, and the like. When the water stored in the water reservoir 18 is heated by the heater 79 and evaporated, mist is generated together with water vapor. This is because when the high-temperature air containing water vapor is cooled in the vapor flow path 80, a part of the water vapor condenses and liquefies.
When the trigger-type power switch 43 is pressed, the heater 79 is energized to heat the water stored in the water tank 18, and a heater, not shown, for heating the ironing board 78 is also energized to warm the ironing board 78. When the heater 79 is energized to generate steam, the blower fan 7 and the ozone generator 16 are driven to mix the air containing ozone sucked from the air inlet 2 and sent along the air guide passage 4 and the steam and mist generated in the water tank 18 and sent along the steam passage 80 at the junction between the air guide passage 4 and the steam passage 80. At the merged portion, the water vapor and ozone react to efficiently generate hydroxyl radicals, and the generated hydroxyl radicals and the unreacted ozone are subjected to sterilization and deodorization treatment in the air guide passage 4. Further, hydroxyl radicals are also generated in the cavity section 12 after the above-mentioned confluence section. The air after the sterilization and deodorization treatment is blown out forward from the air outlet 3 together with the residual ozone and mist. The air blown out forward from the air outlet port 3 contains hydroxyl radicals generated in the vicinity of the air outlet port 3 to a small extent. In a state where the pressing operation of the power switch 43 is maintained, the ironing board 78 is pressed against clothes or the like, and the air containing mist, ozone, and hydroxyl radicals blown out from the air blowing port 3 is blown toward the clothes or the like, whereby the attached viruses and odors can be highly sterilized and deodorized while the wrinkles of the clothes or the like are stretched.
(eighth embodiment)
Fig. 8 shows an eighth embodiment in which the sterilization and deodorization device of the present invention is applied to a steam iron. In the present embodiment, ozone is supplied to the air whose relative humidity has been increased by the high-humidity structure 17 at the air outlet 3. Specifically, the air guide passage 4 is branched into a plurality of parts on the downstream side of the ozone generating unit 16, and similarly, the downstream end side of the steam flow passage 80 is also branched into a plurality of parts. The branched air guide passage 4 and the branched steam flow passage 80 are merged at a mortar-shaped mixing portion 81 formed at an inlet portion of the air outlet 3, and hydroxyl radicals are generated at the mixing portion 81. In this way, when ozone is supplied to the air having an increased relative humidity near the air outlet port 3, a large amount of ozone can be supplied to the highly humidified air immediately before the air is blown out from the air outlet port 3, and therefore, even after the air is blown out from the air outlet port 3, the water vapor and the ozone react with each other to generate hydroxyl radicals. Therefore, ozone and hydroxyl radicals can be blown to clothes and the like together with air containing mist, wrinkles of the clothes and the like can be stretched, and attached viruses and odors can be reliably subjected to high-level sterilization and deodorization treatment.
In the above-described embodiment, the ironing board 78 may be omitted, and the plurality of air outlet ports 3 that communicate with the chamber 12 or that join the air guide passage 4 and the steam flow passage 80 may be formed on the front surface of the head portion 76, thereby forming a hand-held steam iron. In the hand-held steam iron, air containing mist, ozone, and hydroxyl radicals blown from the air outlet 3 is blown to clothes and the like, and thereby viruses and odors adhering to clothes and the like can be highly subjected to sterilization and deodorization treatment. Wrinkle extension of clothes and the like can also be performed by mist. As described above, according to the sterilization and deodorization device having the structure in which ozone is blown out from the air outlet 3 together with the air humidified by the high humidification structure 17, the sterilization and deodorization device can be used as a steam iron such as a steam iron and clothes. The steam iron is not limited to clothes, and can be used for carpets, sofas, and the like. In the seventh and eighth embodiments configured as steam irons other than the above, the ozone outlet 33 described in the first embodiment can be provided.
In each of the above embodiments, the ozone generating portion 16 is composed of the discharge electrode 22 formed in a needle shape and the counter electrode 23 formed in a crown shape, but the structure of the ozone generating portion 16 is not limited to this. For example, the ozone generating part 16 may have an electrode structure in which a pair of needle-shaped electrodes are arranged such that their tips face each other, or an electrode structure in which a pair of electrodes are formed in a rod shape and each electrode is covered with a glass tube so that the members are arranged in parallel, or another electrode structure may be employed. In addition to the corona discharge type ozone generating unit 16, an ultraviolet type, a low temperature plasma type, an electrolysis type, or the like ozone generating device may be used. The bypass air passage 38 connecting the upstream side and the downstream side of the air guide passage 4 to avoid the filter 36 can be omitted. The present invention can be applied to various electrical devices as long as it is a proposal for generating hydroxyl radicals by mixing highly humidified air and ozone.

Claims (14)

1. A bacteria removing and deodorizing device is characterized by comprising:
a main body case (1) in which an air guide path (4) is formed, the air guide path (4) having an air suction port (2) at one end and an air blow-out port (3) at the other end;
a blower fan (7) that is disposed in the air duct (4) and that transports air from the air inlet (2) to the air outlet (3); and
an ozone generating unit (16) that generates ozone and supplies the ozone to the air guide passage (4),
the air guide path (4) is provided with a high-humidity structure (17) for increasing the relative humidity of the air introduced from the air inlet (2), and the air passing through the high-humidity structure (17) is supplied with ozone generated by an ozone generating part (16).
2. Sterilization deodorisation device according to claim 1,
the highly humidified structure (17) is provided with a thermoelectric conversion element (68) for cooling having a heat absorbing part (66), and is provided in a state in which the heat absorbing part (66) of the thermoelectric conversion element (68) for cooling is facing the air guide passage (4).
3. The sterilizing and deodorizing device according to claim 2,
the high-humidification structure (17) is provided with: a water receiving tank (70) that receives dew condensation water generated in a heat absorbing unit (66) of a thermoelectric conversion element (68) for cooling; and an evaporation mechanism (71) for evaporating or atomizing the dew condensation water received by the water receiving tank (70).
4. The sterilizing and deodorizing device according to claim 1,
comprises a dehumidification air duct (53), the dehumidification air duct (53) sucks air from the outside of the main body casing (1) and reduces the relative humidity of the sucked air, an ozone generating part (16) generating ozone by discharge phenomenon is arranged at the downstream end of the dehumidification air duct (53),
the dehumidification air passage (53) is provided with: a thermoelectric conversion element (56) for dehumidification that cools the air sucked into the dehumidification air duct (53) and condenses water vapor contained in the air; and a dehumidification tank (58) that receives the dew condensation water generated by the dehumidification thermoelectric conversion element (56),
the ozone generator (16) is provided in the air duct (4), a high humidification structure (17) is provided in the air duct (4) on the downstream side of the ozone generator (16),
the high-humidification structure (17) includes a dehumidification tank (58) and an evaporation unit (63) that evaporates dew condensation water caught by the dehumidification tank (58).
5. Sterilization deodorisation device according to claim 1,
the high humidification structure (17) is configured to include a water storage tank (18) that stores water formed in the air guide passage (4), and a humidification mechanism (19) that evaporates or atomizes the water stored in the water storage tank (18) to humidify the air.
6. The sterilizing and deodorizing device according to any one of claims 1 to 5,
an ozone supply port (28) for supplying the ozone generated in the ozone generator (16) to the air guide passage (4),
a filter unit (36) capable of adsorbing ozone is provided on the downstream side of the air duct (4) with respect to the ozone supply port (28).
7. The sterilizing and deodorizing device according to claim 5 or 6,
an ozone supply port (28) for supplying the ozone generated in the ozone generator (16) to the air guide passage (4),
a mixing air duct (49) is formed in the air guide duct (4) on the downstream side of the ozone supply port (28), and the mixing air duct (49) is configured by a curved air duct that increases the chance of contact between the ozone and the water vapor contained in the air flowing through the air guide duct (4).
8. The sterilizing and deodorizing device according to any one of claims 5 to 7,
the ozone is blown out from the air outlet (3) together with the air humidified by the high-humidification structure (17).
9. The sterilizing and deodorizing device according to claim 8,
the air guide path (4) is provided with an ozone discharge port (32) that discharges ozone toward the air outlet port (3).
10. The sterilizing and deodorizing device according to claim 8,
an ozone outlet (33) for blowing out air containing ozone toward the outside of the main body case (1) is provided adjacent to the air outlet (3).
11. The sterilizing and deodorizing device according to claim 10,
the ozone outlet (33) is arranged such that the direction of ozone blown out from the ozone outlet (33) and the direction of air blown out from the air outlet (3) intersect.
12. The sterilizing and deodorizing device according to claim 6,
an avoidance air duct (38) is provided in the air guide duct (4), and the avoidance air duct (38) connects the upstream side and the downstream side of the filter (36) to the air guide duct (4) while avoiding the filter (36).
13. The sterilizing and deodorizing device according to any one of claims 5 to 12,
an ozone generating electrode (21) for generating ozone by decomposing water and electricity is immersed in water stored in a water tank (18).
14. The bacteria removing and deodorizing device according to claim 13,
the humidifying mechanism (19) is composed of an ultrasonic vibrator (20) for atomizing water which is stored in a water storage tank (18) and in which ozone is dissolved.
CN202210410816.6A 2021-06-23 2022-04-19 Degerming deodorizing device Pending CN115507492A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021104285A JP2023003230A (en) 2021-06-23 2021-06-23 Device for disinfection and deodorization
JP2021-104285 2021-06-23

Publications (1)

Publication Number Publication Date
CN115507492A true CN115507492A (en) 2022-12-23

Family

ID=84500857

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210410816.6A Pending CN115507492A (en) 2021-06-23 2022-04-19 Degerming deodorizing device

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JP (1) JP2023003230A (en)
CN (1) CN115507492A (en)

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JP2023003230A (en) 2023-01-11

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